{"id":9087,"date":"2026-08-07T15:05:00","date_gmt":"2026-08-07T07:05:00","guid":{"rendered":"https:\/\/www.jodoo.com\/blog\/?p=9087"},"modified":"2026-08-14T16:07:10","modified_gmt":"2026-08-14T08:07:10","slug":"kiem-soat-quy-trinh-thong-ke","status":"publish","type":"post","link":"https:\/\/www.jodoo.com\/blog\/vi-vn\/statistical-process-control","title":{"rendered":"Ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea (SPC): C\u00e1ch c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111\u1ec3 ng\u0103n ng\u1eeba l\u1ed7i"},"content":{"rendered":"

<\/span>Gi\u1edbi thi\u1ec7u: T\u1ea1i sao ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea l\u1ea1i quan tr\u1ecdng tr\u01b0\u1edbc khi h\u00e0ng l\u1ed7i \u0111\u1ebfn tay kh\u00e1ch h\u00e0ng<\/span><\/h2>\n\n\n\n

M\u1ed9t l\u1ed7i \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra cu\u1ed1i c\u00f9ng \u0111\u00e3 r\u1ea5t t\u1ed1n k\u00e9m. M\u1ed9t l\u1ed7i do kh\u00e1ch h\u00e0ng ph\u00e1t hi\u1ec7n th\u00ec c\u00f2n t\u1ec7 h\u01a1n. Theo ASQ, chi ph\u00ed do ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m c\u00f3 th\u1ec3 l\u00ean t\u1edbi 151.300 \u0111\u1ebfn 201.300 \u0111\u00f4 la doanh thu b\u00e1n h\u00e0ng \u1edf nhi\u1ec1u t\u1ed5 ch\u1ee9c, v\u00e0 ph\u1ea7n l\u1edbn t\u1ed5n th\u1ea5t \u0111\u00f3 \u0111\u1ebfn t\u1eeb vi\u1ec7c ph\u00e1t hi\u1ec7n v\u1ea5n \u0111\u1ec1 qu\u00e1 mu\u1ed9n. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao... Ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea (SPC)<\/a><\/strong> \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng: n\u00f3 gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00e1t hi\u1ec7n s\u1ef1 bi\u1ebfn \u0111\u1ed5i trong quy tr\u00ecnh khi s\u1ea3n xu\u1ea5t v\u1eabn \u0111ang di\u1ec5n ra, tr\u01b0\u1edbc khi x\u1ea3y ra t\u00ecnh tr\u1ea1ng h\u00e0ng ph\u1ebf ph\u1ea9m, l\u00e0m l\u1ea1i, khi\u1ebfu n\u1ea1i ho\u1eb7c ng\u1eebng d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t lan r\u1ed9ng.<\/p>\n\n\n\n

H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 SPC, c\u00e1ch \u0111\u1ecdc bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t SPC m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c t\u00edn hi\u1ec7u \u0111\u00f3 trong ho\u1ea1t \u0111\u1ed9ng h\u00e0ng ng\u00e0y. N\u00f3 c\u0169ng ch\u1ec9 ra c\u00e1ch c\u00e1c quy tr\u00ecnh l\u00e0m vi\u1ec7c k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 th\u1ec3 gi\u00fap nh\u00f3m c\u1ee7a b\u1ea1n ph\u1ea3n \u1ee9ng nhanh h\u01a1n khi m\u1ed9t quy tr\u00ecnh b\u1eaft \u0111\u1ea7u v\u01b0\u1ee3t kh\u1ecfi t\u1ea7m ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

<\/span>SPC l\u00e0 g\u00ec v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 bi\u1ebfn \u0111\u1ed9ng v\u00e0 l\u1ed7i s\u1ea3n ph\u1ea9m<\/span><\/h2>\n\n\n\n

<\/span>SPC t\u1eadp trung v\u00e0o quy tr\u00ecnh<\/span><\/h3>\n\n\n\n

Ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea<\/a><\/strong> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 theo d\u00f5i h\u00e0nh vi c\u1ee7a quy tr\u00ecnh theo th\u1eddi gian \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n. bi\u1ebfn th\u1ec3 b\u1ea5t th\u01b0\u1eddng<\/strong> tr\u01b0\u1edbc khi n\u00f3 bi\u1ebfn th\u00e0nh ph\u1ebf ph\u1ea9m, ph\u1ea3i l\u00e0m l\u1ea1i ho\u1eb7c nh\u1eadn \u0111\u01b0\u1ee3c khi\u1ebfu n\u1ea1i t\u1eeb kh\u00e1ch h\u00e0ng. Thay v\u00ec ch\u1ec9 h\u1ecfi li\u1ec7u m\u1ed9t b\u1ed9 ph\u1eadn th\u00e0nh ph\u1ea9m c\u00f3 \u0111\u1ea1t ki\u1ec3m tra hay kh\u00f4ng, SPC h\u1ecfi li\u1ec7u quy tr\u00ecnh s\u1ea3n xu\u1ea5t ra n\u00f3 c\u00f3 ho\u1ea1t \u0111\u1ed9ng m\u1ed9t c\u00e1ch c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c hay kh\u00f4ng. S\u1ef1 thay \u0111\u1ed5i n\u00e0y r\u1ea5t quan tr\u1ecdng v\u00ec m\u1ed9t quy tr\u00ecnh v\u1eabn c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t ra c\u00e1c b\u1ed9 ph\u1eadn n\u1eb1m trong dung sai trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh trong khi n\u00f3 \u0111\u00e3 d\u1ea7n ti\u1ebfn \u0111\u1ebfn l\u1ed7i.<\/p>\n\n\n\n

SPC xem x\u00e9t c\u00e1c ph\u00e9p \u0111o theo tr\u00ecnh t\u1ef1, gi\u00fap c\u00e1c k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 qu\u1ea3n l\u00fd s\u1ea3n xu\u1ea5t th\u1ea5y \u0111\u01b0\u1ee3c li\u1ec7u quy tr\u00ecnh c\u00f3 \u1ed5n \u0111\u1ecbnh, \u0111ang thay \u0111\u1ed5i hay \u0111ang ph\u1ea3n \u1ee9ng v\u1edbi s\u1ef1 nhi\u1ec5u lo\u1ea1n hay kh\u00f4ng. \u0110\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 hi\u1ec3u bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t SPC \u1edf ph\u1ea7n sau c\u1ee7a b\u00e0i vi\u1ebft, nh\u01b0ng nguy\u00ean t\u1eafc r\u1ea5t \u0111\u01a1n gi\u1ea3n: ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd \u0111\u00e1ng tin c\u1eady h\u01a1n khi b\u1ea1n ki\u1ec3m so\u00e1t s\u1ef1 bi\u1ebfn \u0111\u1ed9ng ngay t\u1ea1i ngu\u1ed3n. N\u00f3i c\u00e1ch kh\u00e1c, SPC kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 t\u00ecm ra c\u00e1c s\u1ea3n ph\u1ea9m l\u1ed7i m\u00e0 c\u00f2n l\u00e0 ng\u0103n ng\u1eeba ch\u00fang x\u1ea3y ra.<\/p>\n\n\n\n

<\/span>V\u00ec sao s\u1ef1 bi\u1ebfn thi\u00ean m\u1edbi l\u00e0 t\u00edn hi\u1ec7u th\u1ef1c s\u1ef1<\/span><\/h3>\n\n\n\n

M\u1ecdi quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec1u c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 n\u00e0o \u0111\u00f3, ngay c\u1ea3 khi m\u00e1y m\u00f3c \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec v\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh tu\u00e2n theo quy tr\u00ecnh chu\u1ea9n. M\u00e1y d\u1eadp c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t nh\u1ecf v\u1ec1 k\u00edch th\u01b0\u1edbc gi\u1eefa c\u00e1c chi ti\u1ebft, d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i c\u00f3 th\u1ec3 ch\u00eanh l\u1ec7ch v\u00e0i gam, v\u00e0 l\u00f2 nung ch\u1ea3y c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng thay \u0111\u1ed5i nh\u1ecf v\u1ec1 h\u00ecnh d\u1ea1ng m\u1ed1i h\u00e0n trong su\u1ed1t m\u1ed9t ca l\u00e0m vi\u1ec7c. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 lo\u1ea1i b\u1ecf m\u1ecdi s\u1ef1 bi\u1ebfn \u0111\u1ed5i, \u0111i\u1ec1u n\u00e0y l\u00e0 kh\u00f4ng th\u1ec3, m\u00e0 l\u00e0 ph\u00e2n bi\u1ec7t s\u1ef1 bi\u1ebfn \u0111\u1ed5i b\u00ecnh th\u01b0\u1eddng v\u1edbi lo\u1ea1i bi\u1ebfn \u0111\u1ed5i b\u00e1o hi\u1ec7u v\u1ea5n \u0111\u1ec1 trong quy tr\u00ecnh.<\/p>\n\n\n\n

C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng chia s\u1ef1 kh\u00e1c bi\u1ec7t th\u00e0nh hai lo\u1ea1i: nguy\u00ean nh\u00e2n chung<\/strong> s\u1ef1 bi\u1ebfn \u0111\u1ed5i v\u00e0 nguy\u00ean nh\u00e2n \u0111\u1eb7c bi\u1ec7t<\/strong> Bi\u1ebfn thi\u00ean. Bi\u1ebfn thi\u00ean do nguy\u00ean nh\u00e2n th\u00f4ng th\u01b0\u1eddng l\u00e0 s\u1ef1 dao \u0111\u1ed9ng t\u1ef1 nhi\u00ean v\u1ed1n c\u00f3 trong m\u1ed9t quy tr\u00ecnh \u1ed5n \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1eefng thay \u0111\u1ed5i nh\u1ecf v\u1ec1 nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 rung b\u00ecnh th\u01b0\u1eddng c\u1ee7a m\u00e1y m\u00f3c ho\u1eb7c s\u1ef1 kh\u00e1c bi\u1ec7t v\u1eadt li\u1ec7u th\u00f4ng th\u01b0\u1eddng trong ph\u1ea1m vi cho ph\u00e9p. Bi\u1ebfn thi\u00ean do nguy\u00ean nh\u00e2n \u0111\u1eb7c bi\u1ec7t xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed9t s\u1ef1 gi\u00e1n \u0111o\u1ea1n c\u1ee5 th\u1ec3, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ee5ng c\u1ee5 b\u1ecb m\u00f2n, c\u00e0i \u0111\u1eb7t m\u00e1y sai, v\u00f2i phun b\u1ecb t\u1eafc ho\u1eb7c ng\u01b0\u1eddi v\u1eadn h\u00e0nh ch\u01b0a \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o b\u00e0i b\u1ea3n. N\u1ebfu b\u1ea1n coi bi\u1ebfn thi\u00ean do nguy\u00ean nh\u00e2n th\u00f4ng th\u01b0\u1eddng nh\u01b0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p kh\u1ea9n c\u1ea5p, b\u1ea1n s\u1ebd \u0111i\u1ec1u ch\u1ec9nh qu\u00e1 m\u1ee9c quy tr\u00ecnh; n\u1ebfu b\u1ea1n b\u1ecf qua bi\u1ebfn thi\u00ean do nguy\u00ean nh\u00e2n \u0111\u1eb7c bi\u1ec7t, l\u1ed7i s\u1ebd gia t\u0103ng.<\/p>\n\n\n\n

\"Infographic<\/figure>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea (SPC) m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. C\u00e1c nh\u00f3m ph\u1ea3n \u1ee9ng v\u1edbi m\u1ecdi \u0111i\u1ec3m d\u1eef li\u1ec7u th\u01b0\u1eddng l\u00e0m cho quy tr\u00ecnh tr\u1edf n\u00ean k\u00e9m \u1ed5n \u0111\u1ecbnh h\u01a1n b\u1eb1ng c\u00e1ch ch\u1ea1y theo nh\u1eefng th\u00f4ng tin nhi\u1ec5u. C\u00e1c nh\u00f3m b\u1ecf qua c\u00e1c m\u1eabu b\u1ea5t th\u01b0\u1eddng v\u00ec c\u00e1c b\u1ed9 ph\u1eadn ri\u00eang l\u1ebb v\u1eabn v\u01b0\u1ee3t qua kh\u00e2u ki\u1ec3m tra cu\u1ed1i c\u00f9ng th\u01b0\u1eddng ch\u1ec9 ph\u00e1t hi\u1ec7n ra v\u1ea5n \u0111\u1ec1 sau khi n\u0103ng su\u1ea5t gi\u1ea3m ho\u1eb7c kh\u00e1ch h\u00e0ng t\u1eeb ch\u1ed1i s\u1ea3n ph\u1ea9m. SPC gi\u00fap b\u1ea1n ph\u1ea3n h\u1ed3i \u0111\u00fang t\u00edn hi\u1ec7u v\u00e0o \u0111\u00fang th\u1eddi \u0111i\u1ec3m.<\/p>\n\n\n\n

<\/span>V\u00ec sao quy tr\u00ecnh \u1ed5n \u0111\u1ecbnh t\u1ea1o ra ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t h\u01a1n<\/span><\/h3>\n\n\n\n

M\u1ed9t quy tr\u00ecnh \u1ed5n \u0111\u1ecbnh ch\u1ec9 th\u1ec3 hi\u1ec7n s\u1ef1 bi\u1ebfn \u0111\u1ed5i do nguy\u00ean nh\u00e2n chung theo th\u1eddi gian. N\u1ebfu thi\u1ebfu t\u00ednh \u1ed5n \u0111\u1ecbnh, ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5<\/a><\/strong> N\u00f3 tr\u1edf n\u00ean kh\u00f4ng \u0111\u00e1ng tin c\u1eady v\u00ec quy tr\u00ecnh li\u00ean t\u1ee5c thay \u0111\u1ed5i v\u00ec nh\u1eefng l\u00fd do kh\u00f4ng th\u1ec3 ki\u1ec3m so\u00e1t. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh tr\u01b0\u1edbc, r\u1ed3i m\u1edbi t\u1ed1i \u01b0u h\u00f3a.<\/p>\n\n\n\n

V\u00ed d\u1ee5, trong d\u1eadp kim lo\u1ea1i, m\u00e1y \u00e9p t\u1ea1o ra c\u00e1c l\u1ed7 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ph\u00e2n b\u1ed1 \u0111\u1ec1u s\u1ebd d\u1ec5 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 c\u1ea3i ti\u1ebfn h\u01a1n so v\u1edbi m\u00e1y b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi s\u1ef1 l\u1ec7ch khu\u00f4n kh\u00f4ng li\u00ean t\u1ee5c. Trong chi\u1ebft r\u00f3t \u0111\u1ed3 u\u1ed1ng, d\u00e2y chuy\u1ec1n c\u00f3 s\u1ef1 bi\u1ebfn thi\u00ean tr\u1ecdng l\u01b0\u1ee3ng chi\u1ebft r\u00f3t \u1ed5n \u0111\u1ecbnh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c h\u01a1n \u0111\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng hao h\u1ee5t m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng nguy c\u01a1 thi\u1ebfu h\u1ee5t. Trong l\u1eafp r\u00e1p \u0111i\u1ec7n t\u1eed, vi\u1ec7c l\u1eafng \u0111\u1ecdng kem h\u00e0n \u1ed5n \u0111\u1ecbnh h\u1ed7 tr\u1ee3 t\u1ef7 l\u1ec7 s\u1ea3n ph\u1ea9m \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng ngay l\u1ea7n \u0111\u1ea7u ti\u00ean t\u1ed1t h\u01a1n v\u00ec quy tr\u00ecnh tr\u01b0\u1edbc \u0111\u00f3 ng\u0103n ch\u1eb7n vi\u1ec7c \u0111\u01b0a c\u00e1c khuy\u1ebft t\u1eadt ng\u1eabu nhi\u00ean v\u00e0o qu\u00e1 tr\u00ecnh \u0111\u1eb7t v\u00e0 nung ch\u1ea3y.<\/p>\n\n\n\n

<\/span>L\u00e0m th\u1ebf n\u00e0o SPC gi\u1ea3m thi\u1ec3u l\u1ed7i trong s\u1ea3n xu\u1ea5t?<\/span><\/h3>\n\n\n\n

SPC<\/a><\/strong> Gi\u00fap gi\u1ea3m thi\u1ec3u l\u1ed7i s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh s\u1edbm s\u1ef1 sai l\u1ec7ch, m\u1ea5t \u1ed5n \u0111\u1ecbnh v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n b\u1ea5t th\u01b0\u1eddng, cho ph\u00e9p c\u00e1c nh\u00f3m h\u00e0nh \u0111\u1ed9ng tr\u01b0\u1edbc khi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn b\u1ecb \u1ea3nh h\u01b0\u1edfng. Tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t PCB, vi\u1ec7c theo d\u00f5i chi\u1ec1u cao l\u1edbp keo h\u00e0n c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 m\u00f2n khu\u00f4n ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 c\u0103n ch\u1ec9nh m\u00e1y in tr\u01b0\u1edbc khi xu\u1ea5t hi\u1ec7n c\u00e1c l\u1ed7i nh\u01b0 l\u1ed7i h\u00e0n kh\u00f4ng \u0111\u1ee7. Tr\u00ean d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i, vi\u1ec7c gi\u00e1m s\u00e1t tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00f3ng g\u00f3i c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n c\u1ee7a van tr\u01b0\u1edbc khi c\u00f3 khi\u1ebfu n\u1ea1i v\u1ec1 s\u1ea3n ph\u1ea9m thi\u1ebfu tr\u1ecdng l\u01b0\u1ee3ng. Tr\u00ean quy tr\u00ecnh gia c\u00f4ng ho\u1eb7c d\u1eadp khu\u00f4n, xu h\u01b0\u1edbng k\u00edch th\u01b0\u1edbc c\u00f3 th\u1ec3 l\u00e0m n\u1ed5i b\u1eadt s\u1ef1 m\u00f2n d\u1ee5ng c\u1ee5 r\u1ea5t l\u00e2u tr\u01b0\u1edbc khi c\u00e1c b\u1ed9 ph\u1eadn n\u1eb1m ngo\u00e0i dung sai.<\/p>\n\n\n\n

<\/span>Gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t, bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n thi\u1ebft khi \u0111\u1ecdc t\u00edn hi\u1ec7u SPC<\/span><\/h2>\n\n\n\n

<\/span>B\u1eaft \u0111\u1ea7u v\u1edbi \u0111\u01b0\u1eddng t\u00e2m v\u00e0 c\u00e1c gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t.<\/span><\/h3>\n\n\n\n

\u0110\u1ec3 x\u00e2y d\u1ef1ng s\u1ef1 t\u1ef1 tin trong vi\u1ec7c hi\u1ec3u bi\u1ebft SPC<\/a><\/strong> Bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t, h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t v\u00ed d\u1ee5 gia c\u00f4ng: m\u1ed9t tr\u1ee5c ti\u1ec7n c\u00f3 \u0111\u01b0\u1eddng k\u00ednh m\u1ee5c ti\u00eau l\u00e0 25.000 mm. \u0110\u01b0\u1eddng trung t\u00e2m tr\u00ean bi\u1ec3u \u0111\u1ed3 bi\u1ec3u th\u1ecb gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a qu\u00e1 tr\u00ecnh, trong khi gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t tr\u00ean v\u00e0 d\u01b0\u1edbi cho th\u1ea5y ph\u1ea1m vi bi\u1ebfn \u0111\u1ed9ng th\u00f4ng th\u01b0\u1eddng c\u1ee7a qu\u00e1 tr\u00ecnh. N\u1ebfu qu\u00e1 tr\u00ecnh \u1ed5n \u0111\u1ecbnh, h\u1ea7u h\u1ebft c\u00e1c gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a nh\u00f3m con ho\u1eb7c c\u00e1c gi\u00e1 tr\u1ecb \u0111o ri\u00eang l\u1ebb s\u1ebd n\u1eb1m trong gi\u1edbi h\u1ea1n \u0111\u00f3 v\u00e0 bi\u1ebfn \u0111\u1ed9ng theo m\u1ed9t m\u00f4 h\u00ecnh ng\u1eabu nhi\u00ean h\u1ee3p l\u00fd.<\/p>\n\n\n\n

Gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi gi\u1edbi h\u1ea1n quy c\u00e1ch, nh\u01b0ng ch\u00fang gi\u1ea3i \u0111\u00e1p nh\u1eefng c\u00e2u h\u1ecfi kh\u00e1c nhau. Gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t<\/strong> M\u00f4 t\u1ea3 nh\u1eefng g\u00ec quy tr\u00ecnh th\u1ef1c s\u1ef1 \u0111ang th\u1ef1c hi\u1ec7n theo th\u1eddi gian, d\u1ef1a tr\u00ean d\u1eef li\u1ec7u s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf, \u0111\u1ed3ng th\u1eddi gi\u1edbi h\u1ea1n th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/strong> X\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec kh\u00e1ch h\u00e0ng ho\u1eb7c b\u1ea3n v\u1ebd s\u1ebd ch\u1ea5p nh\u1eadn. \u0110\u01b0\u1eddng k\u00ednh tr\u1ee5c c\u00f3 th\u1ec3 v\u1eabn n\u1eb1m trong ph\u1ea1m vi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt nh\u01b0ng v\u1eabn kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u1ec1 m\u1eb7t th\u1ed1ng k\u00ea, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng SPC \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 sai l\u1ec7ch tr\u01b0\u1edbc khi n\u00f3 t\u1ea1o ra ph\u1ebf ph\u1ea9m, ph\u1ea3i l\u00e0m l\u1ea1i ho\u1eb7c g\u00e2y r\u1ee7i ro cho kh\u00e1ch h\u00e0ng.<\/p>\n\n\n\n

\"Bi\u1ec3u<\/figure>\n\n\n\n

Trong v\u00ed d\u1ee5 v\u1ec1 tr\u1ee5c c\u1ee7a ch\u00fang ta, gi\u1ea3 s\u1eed dung sai b\u1ea3n v\u1ebd l\u00e0 24,950 \u0111\u1ebfn 25,050 mm<\/strong>, nh\u01b0ng gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb quy tr\u00ecnh th\u1ef1c t\u1ebf th\u00ec ch\u1eb7t ch\u1ebd h\u01a1n, \u1edf m\u1ee9c 24,982 \u0111\u1ebfn 25,018 mm<\/strong>. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t "nghi\u00eam ng\u1eb7t" h\u01a1n so v\u1edbi b\u1ea3n in; m\u00e0 c\u00f3 ngh\u0129a l\u00e0 quy tr\u00ecnh th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t ph\u1ea1m vi h\u1eb9p h\u01a1n. Khi bi\u1ec3u \u0111\u1ed3 cho th\u1ea5y t\u00edn hi\u1ec7u b\u1ea5t th\u01b0\u1eddng, nh\u00f3m n\u00ean \u0111i\u1ec1u tra h\u00e0nh vi c\u1ee7a quy tr\u00ecnh tr\u01b0\u1edbc ti\u00ean, ch\u1ee9 kh\u00f4ng n\u00ean ch\u1edd \u0111\u1ebfn khi ph\u00e9p \u0111o v\u01b0\u1ee3t qua v\u1ea1ch quy \u0111\u1ecbnh.<\/p>\n\n\n\n

<\/span>H\u00e3y x\u00e1c \u0111\u1ecbnh bi\u1ec3u \u0111\u1ed3 n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi d\u1eef li\u1ec7u.<\/span><\/h3>\n\n\n\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn bi\u1ec3u \u0111\u1ed3 ch\u00ednh ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c b\u1ea1n \u0111ang theo d\u00f5i \u0111i\u1ec1u g\u00ec. d\u1eef li\u1ec7u bi\u1ebfn \u0111\u1ed5i<\/strong> ho\u1eb7c d\u1eef li\u1ec7u thu\u1ed9c t\u00ednh<\/strong>. \u0110\u1ed1i v\u1edbi c\u00e1c k\u00edch th\u01b0\u1edbc \u0111o \u0111\u01b0\u1ee3c nh\u01b0 \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c, c\u00e1c \u0111\u1ed9i th\u01b0\u1eddng s\u1eed d\u1ee5ng... Bi\u1ec3u \u0111\u1ed3 X-bar v\u00e0 R<\/strong> \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u nh\u00f3m con ho\u1eb7c Bi\u1ec3u \u0111\u1ed3 ph\u1ea1m vi di chuy\u1ec3n c\u1ee7a c\u00e1c c\u00e1 nh\u00e2n v\u00e0 ph\u1ea1m vi di chuy\u1ec3n<\/strong> Khi c\u00e1c ph\u00e9p \u0111o \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eebng c\u00e1i m\u1ed9t. \u0110\u1ed1i v\u1edbi d\u1eef li\u1ec7u thu\u1ed9c t\u00ednh nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng l\u1ed7i ho\u1eb7c k\u1ebft qu\u1ea3 \u0111\u1ea1t\/kh\u00f4ng \u0111\u1ea1t, c\u00e1c t\u00f9y ch\u1ecdn ph\u1ed5 bi\u1ebfn bao g\u1ed3m: bi\u1ec3u \u0111\u1ed3 p<\/strong>, bi\u1ec3u \u0111\u1ed3 np<\/strong>, bi\u1ec3u \u0111\u1ed3 c<\/strong>, V\u00e0 bi\u1ec3u \u0111\u1ed3 u<\/strong>.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

V\u1edbi d\u00e2y chuy\u1ec1n gia c\u00f4ng n\u00e0y, h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111o n\u0103m tr\u1ee5c m\u1ed7i gi\u1edd, v\u00ec v\u1eady... Bi\u1ec3u \u0111\u1ed3 X-bar v\u00e0 R<\/strong> \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn th\u1ef1c t\u1ebf. Bi\u1ec3u \u0111\u1ed3 X-bar cho th\u1ea5y li\u1ec7u gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a nh\u00f3m con c\u00f3 \u0111ang thay \u0111\u1ed5i hay kh\u00f4ng, trong khi bi\u1ec3u \u0111\u1ed3 R cho th\u1ea5y li\u1ec7u s\u1ef1 bi\u1ebfn \u0111\u1ed9ng trong m\u1eabu c\u00f3 \u0111ang m\u1edf r\u1ed9ng hay kh\u00f4ng. Vi\u1ec7c xem x\u00e9t c\u1ea3 hai bi\u1ec3u \u0111\u1ed3 c\u00f9ng nhau r\u1ea5t quan tr\u1ecdng v\u00ec gi\u00e1 tr\u1ecb trung b\u00ecnh c\u00f3 th\u1ec3 tr\u00f4ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c ngay c\u1ea3 khi \u0111\u1ed9 ph\u00e2n t\u00e1n c\u1ee7a qu\u00e1 tr\u00ecnh \u0111ang tr\u1edf n\u00ean kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

<\/span>H\u00e3y \u0111\u1ecdc hi\u1ec3u quy lu\u1eadt, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 t\u1eebng \u0111i\u1ec3m ri\u00eang l\u1ebb.<\/span><\/h3>\n\n\n\n

Nhi\u1ec1u \u0111\u1ed9i ch\u1ec9 t\u00ecm ki\u1ebfm \u0111i\u1ec3m s\u1ed1 n\u1eb1m ngo\u00e0i ph\u1ea1m vi ki\u1ec3m so\u00e1t, nh\u01b0ng SPC<\/a><\/strong> C\u00e1c t\u00edn hi\u1ec7u r\u1ed9ng h\u01a1n th\u1ebf. Bi\u1ec3u \u0111\u1ed3 c\u00f3 th\u1ec3 c\u1ea3nh b\u00e1o b\u1ea1n th\u00f4ng qua... xu h\u01b0\u1edbng<\/strong>, V\u00ed d\u1ee5 nh\u01b0 s\u00e1u ho\u1eb7c b\u1ea3y \u0111i\u1ec3m li\u00ean t\u1ee5c di chuy\u1ec3n l\u00ean tr\u00ean, ho\u1eb7c c\u00e1c chu\u1ed7i, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00e1m \u0111i\u1ec3m li\u00ean ti\u1ebfp n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng trung t\u00e2m. Nh\u1eefng m\u00f4 h\u00ecnh n\u00e0y cho th\u1ea5y qu\u00e1 tr\u00ecnh \u0111\u00e3 thay \u0111\u1ed5i, ngay c\u1ea3 khi m\u1ecdi \u0111i\u1ec3m v\u1eabn n\u1eb1m trong gi\u1edbi h\u1ea1n tr\u00ean v\u00e0 d\u01b0\u1edbi.<\/p>\n\n\n\n

Trong v\u00ed d\u1ee5 v\u1ec1 tr\u1ee5c, gi\u1ea3 s\u1eed gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a b\u1ea3y nh\u00f3m ph\u1ee5 cu\u1ed1i c\u00f9ng t\u0103ng t\u1eeb 24,996 mm l\u00ean 25,012 mm. Ch\u01b0a c\u00f3 \u0111i\u1ec3m n\u00e0o v\u01b0\u1ee3t qu\u00e1 t\u1ea7m ki\u1ec3m so\u00e1t, nh\u01b0ng xu h\u01b0\u1edbng t\u0103ng l\u00ean cho th\u1ea5y c\u00f3 th\u1ec3 do m\u00f2n d\u1ee5ng c\u1ee5, gi\u00e3n n\u1edf nhi\u1ec7t ho\u1eb7c v\u1ea5n \u0111\u1ec1 l\u1ec7ch t\u00e2m m\u00e1y. \u0110\u00e2y l\u00e0 c\u00e1ch SPC gi\u00fap gi\u1ea3m thi\u1ec3u l\u1ed7i trong s\u1ea3n xu\u1ea5t: n\u00f3 cho nh\u00f3m th\u1eddi gian \u0111\u1ec3 h\u00e0nh \u0111\u1ed9ng trong khi c\u00e1c b\u1ed9 ph\u1eadn v\u1eabn c\u00f2n t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ea1t ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

<\/span>Ph\u00e2n bi\u1ec7t t\u00edn hi\u1ec7u v\u00e0 nhi\u1ec5u<\/span><\/h3>\n\n\n\n

M\u1ed9t nguy\u00ean t\u1eafc t\u1ed1t khi s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea l\u00e0 tr\u00e1nh ph\u1ea3n \u1ee9ng v\u1edbi m\u1ecdi bi\u1ebfn \u0111\u1ed9ng nh\u1ecf. N\u1ebfu gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a m\u1ed9t nh\u00f3m nh\u1ecf gi\u1ea3m nh\u1eb9 so v\u1edbi nh\u00f3m tr\u01b0\u1edbc \u0111\u00f3, \u0111\u00f3 th\u01b0\u1eddng l\u00e0 s\u1ef1 dao \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 l\u00fd do \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u00e1y m\u00f3c. Nh\u1eefng \u0111i\u1ec1u ch\u1ec9nh kh\u00f4ng c\u1ea7n thi\u1ebft, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 can thi\u1ec7p tr\u00e1i ph\u00e9p, c\u00f3 th\u1ec3 l\u00e0m t\u0103ng s\u1ef1 bi\u1ebfn \u0111\u1ed9ng v\u00e0 l\u00e0m cho m\u1ed9t quy tr\u00ecnh v\u1ed1n \u0111\u00e3 t\u1ed1t tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n.<\/p>\n\n\n\n

B\u00e2y gi\u1edd h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a m\u1ed9t nh\u00f3m nh\u1ecf \u0111\u1ed9t nhi\u00ean \u0111\u1ea1t 25,022 mm, v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t tr\u00ean, trong khi bi\u1ec3u \u0111\u1ed3 ph\u1ea1m vi c\u0169ng t\u0103ng v\u1ecdt. S\u1ef1 k\u1ebft h\u1ee3p \u0111\u00f3 l\u00e0 m\u1ed9t t\u00edn hi\u1ec7u m\u1ea5t ki\u1ec3m so\u00e1t m\u1ea1nh h\u01a1n so v\u1edbi m\u1ed9t s\u1ef1 d\u1ecbch chuy\u1ec3n ng\u1eabu nhi\u00ean nh\u1ecf xung quanh \u0111\u01b0\u1eddng trung t\u00e2m. \u1ede giai \u0111o\u1ea1n n\u00e0y, k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng ho\u1eb7c gi\u00e1m s\u00e1t s\u1ea3n xu\u1ea5t n\u00ean coi bi\u1ec3u \u0111\u1ed3 l\u00e0 b\u1eb1ng ch\u1ee9ng v\u1ec1 m\u1ed9t s\u1ef1 thay \u0111\u1ed5i quy tr\u00ecnh c\u1ee5 th\u1ec3 v\u00e0 chuy\u1ec3n sang k\u1ebf ho\u1ea1ch \u1ee9ng ph\u00f3, m\u00e0 ph\u1ea7n ti\u1ebfp theo s\u1ebd \u0111\u1ec1 c\u1eadp \u0111\u1ebfn.<\/p>\n\n\n\n

<\/span>C\u00e1ch s\u1eed d\u1ee5ng Ki\u1ec3m so\u00e1t Quy tr\u00ecnh Th\u1ed1ng k\u00ea trong S\u1ea3n xu\u1ea5t T\u1ea1i X\u01b0\u1edfng<\/span><\/h2>\n\n\n\n

<\/span>H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi \u0111\u1eb7c \u0111i\u1ec3m quan tr\u1ecdng nh\u1ea5t.<\/span><\/h3>\n\n\n\n

T\u1ea1i x\u01b0\u1edfng s\u1ea3n xu\u1ea5t, SPC<\/a><\/strong> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y hi\u1ec7u qu\u1ea3 nh\u1ea5t khi \u00e1p d\u1ee5ng cho m\u1ed9t s\u1ed1 \u00edt \u0111\u1eb7c \u0111i\u1ec3m \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 ph\u00f9 h\u1ee3p, ch\u1ee9c n\u0103ng, an to\u00e0n ho\u1eb7c n\u0103ng su\u1ea5t s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. Ng\u01b0\u1eddi qu\u1ea3n l\u00fd s\u1ea3n xu\u1ea5t kh\u00f4ng n\u00ean c\u1ed1 g\u1eafng l\u1eadp bi\u1ec3u \u0111\u1ed3 cho m\u1ecdi k\u00edch th\u01b0\u1edbc ho\u1eb7c m\u00e3 l\u1ed7i c\u00f9ng m\u1ed9t l\u00fac, v\u00ec \u0111i\u1ec1u \u0111\u00f3 th\u01b0\u1eddng t\u1ea1o ra nhi\u1ec5u v\u00e0 kh\u1ea3 n\u0103ng theo d\u00f5i y\u1ebfu k\u00e9m. H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m quan tr\u1ecdng c\u1ee7a quy tr\u00ecnh, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00f4-men xo\u1eafn tr\u00ean tr\u1ea1m l\u1eafp r\u00e1p \u00f4 t\u00f4, chi\u1ec1u cao l\u1edbp keo h\u00e0n trong ng\u00e0nh \u0111i\u1ec7n t\u1eed ho\u1eb7c tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00f3ng g\u00f3i h\u00e0ng h\u00f3a. M\u1ee5c ti\u00eau l\u00e0 t\u1eadp trung SPC v\u00e0o nh\u1eefng n\u01a1i m\u00e0 s\u1ef1 thay \u0111\u1ed5i quy tr\u00ecnh s\u1ebd t\u1ea1o ra r\u1ee7i ro kinh doanh th\u1ef1c s\u1ef1, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 thu th\u1eadp th\u00eam d\u1eef li\u1ec7u.<\/p>\n\n\n\n

M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u1ef1a ch\u1ecdn th\u1ef1c ti\u1ec5n l\u00e0 k\u1ebft h\u1ee3p ba y\u1ebfu t\u1ed1 \u0111\u1ea7u v\u00e0o: y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng, l\u1ecbch s\u1eed n\u0103ng l\u1ef1c quy tr\u00ecnh v\u00e0 chi ph\u00ed l\u1ed7i. N\u1ebfu m\u1ed9t k\u00edch th\u01b0\u1edbc c\u00f3 dung sai ch\u1eb7t ch\u1ebd nh\u01b0ng \u0111\u00e3 c\u00f3 n\u0103ng l\u1ef1c cao, n\u00f3 c\u00f3 th\u1ec3 c\u1ea7n \u00edt s\u1ef1 ch\u00fa \u00fd h\u01a1n so v\u1edbi m\u1ed9t chi ti\u1ebft g\u00e2y ra vi\u1ec7c l\u00e0m l\u1ea1i ho\u1eb7c khi\u1ebfu n\u1ea1i th\u01b0\u1eddng xuy\u00ean. V\u00ed d\u1ee5, trong l\u1eafp r\u00e1p \u00f4 t\u00f4, m\u00f4-men xo\u1eafn bu l\u00f4ng tr\u00ean m\u1ed9t b\u1ed9 ph\u1eadn h\u1ec7 th\u1ed1ng treo l\u00e0 m\u1ed9t \u1ee9ng c\u1eed vi\u00ean SPC m\u1ea1nh m\u1ebd h\u01a1n so v\u1edbi khe h\u1edf trang tr\u00ed v\u00ec h\u1eadu qu\u1ea3 c\u1ee7a s\u1ef1 sai l\u1ec7ch l\u1edbn h\u01a1n nhi\u1ec1u. \u0110\u00e2y l\u00e0 n\u01a1i SPC b\u1eaft \u0111\u1ea7u gi\u1ea3m thi\u1ec3u l\u1ed7i trong s\u1ea3n xu\u1ea5t: b\u1eb1ng c\u00e1ch theo d\u00f5i c\u00e1c bi\u1ebfn s\u1ed1 th\u1ef1c s\u1ef1 g\u00e2y ra l\u1ed7i, ph\u1ebf ph\u1ea9m ho\u1eb7c d\u1eebng d\u00e2y chuy\u1ec1n.<\/p>\n\n\n\n

<\/span>X\u00e1c \u0111\u1ecbnh t\u1ea7n su\u1ea5t l\u1ea5y m\u1eabu xung quanh r\u1ee7i ro quy tr\u00ecnh<\/span><\/h3>\n\n\n\n

Sau khi ch\u1ecdn \u0111\u01b0\u1ee3c \u0111\u1eb7c t\u00ednh c\u1ea7n ki\u1ec3m tra, h\u00e3y quy\u1ebft \u0111\u1ecbnh t\u1ea7n su\u1ea5t l\u1ea5y m\u1eabu d\u1ef1a tr\u00ean \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a quy tr\u00ecnh, th\u1eddi gian chu k\u1ef3 v\u00e0 t\u1ed1c \u0111\u1ed9 ph\u1ea3n \u1ee9ng. C\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn v\u1edbi c\u00e1c m\u1eabu bi\u1ebfn thi\u00ean \u0111\u00e3 bi\u1ebft th\u01b0\u1eddng c\u1ea7n kho\u1ea3ng th\u1eddi gian ng\u1eafn h\u01a1n, trong khi c\u00e1c ho\u1ea1t \u0111\u1ed9ng ch\u1eadm h\u01a1n v\u00e0 \u1ed5n \u0111\u1ecbnh h\u01a1n c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea7n ki\u1ec3m tra h\u00e0ng gi\u1edd ho\u1eb7c theo t\u1eebng l\u00f4. Sai l\u1ea7m m\u00e0 nhi\u1ec1u nh\u00f3m m\u1eafc ph\u1ea3i l\u00e0 thi\u1ebft l\u1eadp t\u1ea7n su\u1ea5t theo th\u00f3i quen thay v\u00ec theo r\u1ee7i ro. N\u1ebfu quy tr\u00ecnh c\u00f3 th\u1ec3 t\u1ea1o ra h\u00e0ng tr\u0103m s\u1ea3n ph\u1ea9m l\u1ed7i tr\u01b0\u1edbc l\u1ea7n ki\u1ec3m tra ti\u1ebfp theo, th\u00ec k\u1ebf ho\u1ea1ch qu\u00e1 ch\u1eadm.<\/p>\n\n\n\n

Trong d\u00e2y chuy\u1ec1n SMT, k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 th\u1ec3 l\u1ea5y m\u1eabu ki\u1ec3m tra l\u1ed7i m\u1ed1i h\u00e0n c\u1ee9 30 ph\u00fat m\u1ed9t l\u1ea7n trong giai \u0111o\u1ea1n kh\u1edfi \u0111\u1ed9ng, sau \u0111\u00f3 chuy\u1ec3n sang ki\u1ec3m tra h\u00e0ng gi\u1edd khi m\u00e1y in v\u00e0 l\u00f2 nung ch\u1ea3y \u0111\u00e3 \u1ed5n \u0111\u1ecbnh. Tr\u00ean d\u00e2y chuy\u1ec1n gia c\u00f4ng ba ca, s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean sau khi \u0111\u1ed5i ca, thay d\u1ee5ng c\u1ee5 ho\u1eb7c b\u1ea3o tr\u00ec th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c l\u1ea5y m\u1eabu th\u00eam v\u00ec nh\u1eefng th\u1eddi \u0111i\u1ec3m \u0111\u00f3 ti\u1ec1m \u1ea9n r\u1ee7i ro bi\u1ebfn \u0111\u1ed9ng cao h\u01a1n. Th\u1ef1c h\u00e0nh SPC t\u1ed1t li\u00ean k\u1ebft th\u1eddi gian v\u1edbi h\u00e0nh vi c\u1ee7a quy tr\u00ecnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u1edbi m\u1ed9t m\u1eabu c\u1ed1 \u0111\u1ecbnh \u0111\u01b0\u1ee3c sao ch\u00e9p kh\u1eafp nh\u00e0 m\u00e1y. \u0110i\u1ec1u \u0111\u00f3 l\u00e0m cho vi\u1ec7c hi\u1ec3u bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t SPC tr\u1edf n\u00ean h\u1eefu \u00edch h\u01a1n, v\u00ec d\u1eef li\u1ec7u ph\u1ea3n \u00e1nh \u0111i\u1ec1u ki\u1ec7n quy tr\u00ecnh th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

<\/span>X\u00e2y d\u1ef1ng quy tr\u00ecnh l\u00e0m vi\u1ec7c SPC r\u00f5 r\u00e0ng v\u00e0 k\u1ebf ho\u1ea1ch ph\u1ea3n \u1ee9ng.<\/span><\/h3>\n\n\n\n

M\u1ed9t m\u1eb7t b\u1eb1ng s\u1ea3n xu\u1ea5t kh\u1ea3 thi SPC<\/a><\/strong> Quy tr\u00ecnh th\u01b0\u1eddng tu\u00e2n theo n\u0103m b\u01b0\u1edbc: \u0111o l\u01b0\u1eddng, ghi nh\u1eadn, xem x\u00e9t, quy\u1ebft \u0111\u1ecbnh v\u00e0 ph\u1ea3n \u1ee9ng. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh ho\u1eb7c thanh tra \u0111o m\u1eabu, ghi l\u1ea1i k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c, ki\u1ec3m tra bi\u1ec3u \u0111\u1ed3 \u0111\u1ec3 t\u00ecm t\u00edn hi\u1ec7u v\u00e0 th\u1ef1c hi\u1ec7n ph\u1ea3n \u1ee9ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc n\u1ebfu quy tr\u00ecnh cho th\u1ea5y m\u00f4 h\u00ecnh b\u1ea5t th\u01b0\u1eddng. K\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng xem x\u00e9t c\u00e1c tr\u01b0\u1eddng h\u1ee3p ngo\u1ea1i l\u1ec7, x\u00e1c nh\u1eadn h\u01b0\u1edbng nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 v\u00e0 quy\u1ebft \u0111\u1ecbnh xem c\u00f3 c\u1ea7n bi\u1ec7n ph\u00e1p ng\u0103n ch\u1eb7n, \u0111i\u1ec1u ch\u1ec9nh ho\u1eb7c leo thang hay kh\u00f4ng. N\u1ebfu thi\u1ebfu chu\u1ed7i n\u00e0y, ngay c\u1ea3 nh\u1eefng bi\u1ec3u \u0111\u1ed3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t c\u0169ng tr\u1edf th\u00e0nh nh\u1eefng b\u1ea3n ghi th\u1ee5 \u0111\u1ed9ng thay v\u00ec c\u00f4ng c\u1ee5 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

K\u1ebf ho\u1ea1ch ph\u1ea3n \u1ee9ng c\u1ea7n \u0111\u1ee7 c\u1ee5 th\u1ec3 \u0111\u1ec3 c\u00e1c ca l\u00e0m vi\u1ec7c kh\u00e1c nhau c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng theo c\u00f9ng m\u1ed9t c\u00e1ch. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t t\u00edn hi\u1ec7u ki\u1ec3m so\u00e1t xu\u1ea5t hi\u1ec7n tr\u00ean bi\u1ec3u \u0111\u1ed3 l\u1ef1c \u00e9p, ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 d\u1eebng tr\u1ea1m, c\u00e1ch ly c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t k\u1ec3 t\u1eeb l\u1ea7n ki\u1ec3m tra \u0111\u1ea1t ti\u00eau chu\u1ea9n g\u1ea7n nh\u1ea5t, g\u1ecdi cho ng\u01b0\u1eddi qu\u1ea3n l\u00fd d\u00e2y chuy\u1ec1n v\u00e0 ti\u1ebfn h\u00e0nh ki\u1ec3m tra d\u1ee5ng c\u1ee5. N\u1ebfu ch\u1ec9 c\u00f3 h\u01b0\u1edbng d\u1eabn l\u00e0 \u201cth\u00f4ng b\u00e1o cho b\u1ed9 ph\u1eadn ch\u1ea5t l\u01b0\u1ee3ng\u201d, th\u1eddi gian ph\u1ea3n h\u1ed3i s\u1ebd kh\u00e1c nhau v\u00e0 s\u1ed1 l\u01b0\u1ee3ng l\u1ed7i c\u00f3 th\u1ec3 t\u0103ng l\u00ean. H\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea (SPC) hi\u1ec7u qu\u1ea3 ph\u1ee5 thu\u1ed9c v\u00e0o h\u00e0nh \u0111\u1ed9ng c\u00f3 k\u1ef7 lu\u1eadt c\u0169ng nh\u01b0 vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u.<\/p>\n\n\n\n

<\/span>Ph\u00e2n c\u00f4ng quy\u1ec1n s\u1edf h\u1eefu theo ch\u1ee9c danh, kh\u00f4ng ph\u1ea3i theo ph\u00f2ng ban.<\/span><\/h3>\n\n\n\n

SPC th\u1ea5t b\u1ea1i khi m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u cho r\u1eb1ng ng\u01b0\u1eddi kh\u00e1c \u0111ang theo d\u00f5i bi\u1ec3u \u0111\u1ed3. C\u00e1c k\u1ef9 thu\u1eadt vi\u00ean v\u1eadn h\u00e0nh n\u00ean ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111o l\u01b0\u1eddng v\u00e0 ph\u1ea3n h\u1ed3i ban \u0111\u1ea7u, c\u00e1c gi\u00e1m s\u00e1t vi\u00ean n\u00ean ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 c\u00e1c quy\u1ebft \u0111\u1ecbnh s\u1ea3n xu\u1ea5t v\u00e0 \u0111i\u1ec1u ph\u1ed1i nh\u00e2n l\u1ef1c, v\u00e0 c\u00e1c k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng n\u00ean ch\u1ecbu tr\u00e1ch nhi\u1ec7m thi\u1ebft l\u1eadp quy t\u1eafc, ti\u00eau ch\u00ed leo thang v\u00e0 k\u1ef7 lu\u1eadt xem x\u00e9t bi\u1ec3u \u0111\u1ed3. S\u1ef1 ph\u00e2n c\u00f4ng n\u00e0y gi\u00fap ph\u1ea3n \u1ee9ng nhanh ch\u00f3ng m\u00e0 kh\u00f4ng bi\u1ebfn m\u1ecdi t\u00edn hi\u1ec7u th\u00e0nh \u0111i\u1ec3m ngh\u1ebdn c\u1ee7a b\u1ed9 ph\u1eadn ch\u1ea5t l\u01b0\u1ee3ng. N\u00f3 c\u0169ng gi\u00fap c\u00e1c nh\u00f3m l\u00e0m vi\u1ec7c nhi\u1ec1u ca duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n khi c\u00f3 s\u1ef1 thay \u0111\u1ed5i nh\u00e2n s\u1ef1.<\/p>\n\n\n\n

Tr\u00ean th\u1ef1c t\u1ebf, tr\u00e1ch nhi\u1ec7m c\u1ea7n \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng \u1edf c\u1ea5p \u0111\u1ed9 quy tr\u00ecnh. M\u1ed9t nh\u00e0 m\u00e1y \u0111i\u1ec7n t\u1eed c\u00f3 th\u1ec3 quy \u0111\u1ecbnh r\u1eb1ng c\u00e1c c\u00f4ng nh\u00e2n v\u1eadn h\u00e0nh ghi l\u1ea1i s\u1ed1 l\u01b0\u1ee3ng l\u1ed7i AOI, tr\u01b0\u1edfng ca xem x\u00e9t c\u00e1c s\u1ef1 thay \u0111\u1ed5i xu h\u01b0\u1edbng t\u1ea1i cu\u1ed9c h\u1ecdp h\u00e0ng gi\u1edd, v\u00e0 k\u1ef9 s\u01b0 quy tr\u00ecnh \u0111i\u1ec1u tra c\u00e1c t\u00edn hi\u1ec7u c\u1ea7u h\u00e0n l\u1eb7p l\u1ea1i trong c\u00f9ng m\u1ed9t ca l\u00e0m vi\u1ec7c. C\u1ea5u tr\u00fac \u0111\u00f3 bi\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea th\u00e0nh m\u1ed9t th\u00f3i quen h\u00e0ng ng\u00e0y thay v\u00ec m\u1ed9t s\u00e1ng ki\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng ch\u1ec9 xu\u1ea5t hi\u1ec7n trong c\u00e1c cu\u1ed9c ki\u1ec3m to\u00e1n.<\/p>\n\n\n\n

<\/span>T\u1eeb b\u1ea3ng t\u00ednh \u0111\u1ebfn quy tr\u00ecnh SPC th\u1eddi gian th\u1ef1c v\u1edbi Jodoo<\/a><\/span><\/h2>\n\n\n\n

<\/span>Nh\u1eefng \u0111i\u1ec3m m\u00e0 qu\u00e1 tr\u00ecnh th\u1ef1c thi SPC truy\u1ec1n th\u1ed1ng b\u1ecb ch\u1eadm l\u1ea1i<\/span><\/h3>\n\n\n\n

Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t hi\u1ec3u \u0111i\u1ec1u \u0111\u00f3. SPC<\/a><\/strong> V\u1ec1 nguy\u00ean t\u1eafc th\u00ec \u0111\u00fang, nh\u01b0ng v\u1eabn ph\u1ea3i th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch ki\u1ec3m tra tr\u00ean gi\u1ea5y, s\u1eed d\u1ee5ng c\u00e1c t\u1ec7p Excel ngo\u1ea1i tuy\u1ebfn v\u00e0 theo d\u00f5i c\u1ee7a ng\u01b0\u1eddi gi\u00e1m s\u00e1t qua \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c tr\u00f2 chuy\u1ec7n. V\u1ea5n \u0111\u1ec1 kh\u00f4ng n\u1eb1m \u1edf b\u1ea3n th\u00e2n bi\u1ec3u \u0111\u1ed3; m\u00e0 l\u00e0 s\u1ef1 ch\u1eadm tr\u1ec5 gi\u1eefa vi\u1ec7c \u0111o l\u01b0\u1eddng, di\u1ec5n gi\u1ea3i v\u00e0 h\u00e0nh \u0111\u1ed9ng. Khi d\u1eef li\u1ec7u n\u1eb1m \u1edf m\u00e1y m\u00f3c trong hai gi\u1edd ho\u1eb7c trong b\u1ea3ng t\u00ednh cho \u0111\u1ebfn cu\u1ed1i ca l\u00e0m vi\u1ec7c, quy tr\u00ecnh c\u00f3 th\u1ec3 \u0111\u00e3 t\u1ea1o ra m\u1ed9t l\u00f4 s\u1ea3n ph\u1ea9m \u0111\u00e1ng ng\u1edd. Kho\u1ea3ng th\u1eddi gian \u0111\u00f3 l\u00e0m suy y\u1ebfu hi\u1ec7u qu\u1ea3 c\u1ee7a SPC trong vi\u1ec7c gi\u1ea3m thi\u1ec3u l\u1ed7i trong s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

H\u00e3y xem x\u00e9t m\u1ed9t d\u00e2y chuy\u1ec1n gia c\u00f4ng CNC theo d\u00f5i \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c quan tr\u1ecdng c\u1ee9 sau 30 ph\u00fat. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh ghi l\u1ea1i c\u00e1c s\u1ed1 li\u1ec7u th\u1ee7 c\u00f4ng, sau \u0111\u00f3 ng\u01b0\u1eddi qu\u1ea3n l\u00fd d\u00e2y chuy\u1ec1n nh\u1eadp ch\u00fang v\u00e0o b\u1ea3ng t\u00ednh v\u00e0o cu\u1ed1i ca l\u00e0m vi\u1ec7c. \u0110\u1ebfn khi k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng nh\u1eadn th\u1ea5y qu\u00e1 tr\u00ecnh gia c\u00f4ng ti\u1ebfn g\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t tr\u00ean, ba m\u00e1y \u0111\u00e3 s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t \u0111\u1ed9 l\u1ec7ch d\u1ee5ng c\u1ee5 b\u1ecb m\u00f2n. Tr\u00ean th\u1ef1c t\u1ebf, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c nh\u00f3m bi\u1ebft c\u00e1ch s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea, nh\u01b0ng quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ee7a h\u1ecd ng\u0103n c\u1ea3n vi\u1ec7c ph\u1ea3n h\u1ed3i k\u1ecbp th\u1eddi.<\/p>\n\n\n\n

<\/span>C\u00e1ch Jodoo chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u SPC th\u00e0nh t\u00edn hi\u1ec7u quy tr\u00ecnh tr\u1ef1c ti\u1ebfp<\/span><\/h3>\n\n\n\n

Jodoo<\/a><\/strong> C\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh \u0111\u1ec3 ng\u01b0\u1eddi v\u1eadn h\u00e0nh nh\u1eadp tr\u1ef1c ti\u1ebfp t\u1eebng gi\u00e1 tr\u1ecb \u0111\u01b0\u1eddng k\u00ednh tr\u1ee5c v\u00e0o m\u1ed9t bi\u1ec3u m\u1eabu di \u0111\u1ed9ng t\u1ea1i m\u00e1y. Bi\u1ec3u m\u1eabu c\u00f3 th\u1ec3 bao g\u1ed3m s\u1ed1 hi\u1ec7u chi ti\u1ebft, ID m\u00e1y, s\u1ed1 khoang ho\u1eb7c s\u1ed1 tr\u1ee5c ch\u00ednh, ca l\u00e0m vi\u1ec7c, t\u00ean ng\u01b0\u1eddi v\u1eadn h\u00e0nh, s\u1ed1 n\u0103m s\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 v\u00e0 gi\u00e1 tr\u1ecb \u0111o \u0111\u01b0\u1ee3c, c\u00f9ng v\u1edbi c\u00e1c quy t\u1eafc x\u00e1c th\u1ef1c \u0111\u1ec3 gi\u1ea3m thi\u1ec3u l\u1ed7i nh\u1eadp li\u1ec7u. N\u1ebfu c\u00e1c ph\u00e9p \u0111o \u0111\u1ebfn t\u1eeb \u0111\u1ed3ng h\u1ed3 \u0111o k\u1ef9 thu\u1eadt s\u1ed1, PLC ho\u1eb7c MES, d\u1eef li\u1ec7u t\u01b0\u01a1ng t\u1ef1 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ea9y v\u00e0o Jodoo th\u00f4ng qua t\u00edch h\u1ee3p d\u1ef1a tr\u00ean API thay v\u00ec nh\u1eadp th\u1ee7 c\u00f4ng. \u0110i\u1ec1u \u0111\u00f3 gi\u00fap nh\u00f3m c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch th\u1ee9c qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3. ngu\u1ed3n d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac<\/strong> thay v\u00ec nhi\u1ec1u t\u1eadp tin ri\u00eang l\u1ebb kh\u00f4ng li\u00ean k\u1ebft v\u1edbi nhau.<\/p>\n\n\n\n

Sau khi b\u00e0i \u0111\u1ecdc \u0111\u01b0\u1ee3c g\u1eedi \u0111i, Jodoo c\u00f3 th\u1ec3 c\u1eadp nh\u1eadt... b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n th\u1eddi gian th\u1ef1c<\/strong> Bi\u1ec3u \u0111\u1ed3 n\u00e0y hi\u1ec3n th\u1ecb c\u00e1c gi\u00e1 tr\u1ecb nh\u00f3m ph\u1ee5 m\u1edbi nh\u1ea5t, h\u01b0\u1edbng xu h\u01b0\u1edbng v\u00e0 tr\u1ea1ng th\u00e1i ngo\u1ea1i l\u1ec7 theo t\u1eebng m\u00e1y ho\u1eb7c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi qu\u1ea3n l\u00fd s\u1ea3n xu\u1ea5t, \u0111i\u1ec1u n\u00e0y gi\u00fap vi\u1ec7c hi\u1ec3u bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t SPC d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u v\u00ec t\u00edn hi\u1ec7u hi\u1ec3n th\u1ecb trong khi quy tr\u00ecnh v\u1eabn \u0111ang ch\u1ea1y, ch\u1ee9 kh\u00f4ng ph\u1ea3i sau khi b\u1ea3ng t\u00ednh \u0111\u00e3 \u0111\u01b0\u1ee3c d\u1ecdn d\u1eb9p. C\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 l\u1ecdc theo d\u00f2ng s\u1ea3n ph\u1ea9m, ca l\u00e0m vi\u1ec7c ho\u1eb7c m\u00e1y m\u00f3c \u0111\u1ec3 xem v\u1ea5n \u0111\u1ec1 l\u00e0 c\u1ee5c b\u1ed9 hay \u0111ang lan r\u1ed9ng.<\/p>\n\n\n\n

<\/span>X\u00e2y d\u1ef1ng quy tr\u00ecnh ph\u1ea3n h\u1ed3i kh\u00e9p k\u00edn<\/span><\/h3>\n\n\n\n

L\u1ee3i \u00edch th\u1ef1c s\u1ef1 \u0111\u1ebfn khi SPC \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi h\u00e0nh \u0111\u1ed9ng, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 tr\u1ef1c quan h\u00f3a. Trong v\u00ed d\u1ee5 v\u1ec1 gia c\u00f4ng, n\u1ebfu m\u1ed9t k\u1ebft qu\u1ea3 \u0111o \u0111\u01b0\u1ee3c g\u1eedi \u0111i vi ph\u1ea1m quy t\u1eafc ki\u1ec3m so\u00e1t, Jodoo<\/a><\/strong> H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng k\u00edch ho\u1ea1t c\u1ea3nh b\u00e1o cho k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 gi\u00e1m s\u00e1t s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh th\u00f4ng qua th\u00f4ng b\u00e1o trong \u1ee9ng d\u1ee5ng, email ho\u1eb7c c\u00e1c k\u00eanh nh\u1eafn tin. Quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 y\u00eau c\u1ea7u ng\u01b0\u1eddi v\u1eadn h\u00e0nh t\u1ea1m d\u1eebng l\u1ea7n ch\u1ea1y ti\u1ebfp theo, \u0111\u00ednh k\u00e8m \u1ea3nh ch\u1ee5p k\u1ebft qu\u1ea3 \u0111o v\u00e0 ch\u1ecdn nguy\u00ean nh\u00e2n nghi ng\u1edd nh\u01b0 m\u00f2n d\u1ee5ng c\u1ee5, \u0111\u1ed9 l\u1ecfng c\u1ee7a \u0111\u1ed3 g\u00e1 ho\u1eb7c s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n\n\n\n

K\u1ef9 s\u01b0 sau \u0111\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t nhi\u1ec7m v\u1ee5 \u0111i\u1ec1u tra li\u00ean k\u1ebft v\u1edbi l\u1ecbch s\u1eed \u0111o l\u01b0\u1eddng, chi ti\u1ebft m\u00e1y m\u00f3c, c\u00e1c s\u1ef1 c\u1ed1 t\u01b0\u01a1ng t\u1ef1 tr\u01b0\u1edbc \u0111\u00f3 v\u00e0 th\u1eddi h\u1ea1n ph\u1ea3n h\u1ed3i \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00ednh k\u00e8m. N\u1ebfu vi\u1ec7c thay th\u1ebf d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn, quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 chuy\u1ec3n ph\u00ea duy\u1ec7t k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ebfn ng\u01b0\u1eddi gi\u00e1m s\u00e1t ca, ghi l\u1ea1i t\u00ecnh tr\u1ea1ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t k\u1ec3 t\u1eeb m\u1eabu \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn cu\u1ed1i c\u00f9ng v\u00e0 ch\u1ec9 \u0111\u1ecbnh l\u1ea5y m\u1eabu x\u00e1c minh sau khi \u0111i\u1ec1u ch\u1ec9nh. Thay v\u00ec d\u1ef1a v\u00e0o tr\u00ed nh\u1edb ho\u1eb7c c\u00e1c email ri\u00eang l\u1ebb, to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb t\u00edn hi\u1ec7u \u0111\u1ebfn ng\u0103n ch\u1eb7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch th\u1ed1ng nh\u1ea5t. h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c<\/a><\/strong> \u0111\u01b0\u1ee3c ghi ch\u00e9p trong m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t.<\/p>\n\n\n\n

\"Quy<\/figure>\n\n\n\n

<\/span>C\u1ea5u h\u00ecnh Jodoo SPC th\u1ef1c t\u1ebf tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/h3>\n\n\n\n

M\u1ed9t h\u1ec7 th\u1ed1ng h\u1eefu \u00edch kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i ph\u1ee9c t\u1ea1p. H\u1ea7u h\u1ebft c\u00e1c nh\u00f3m b\u1eaft \u0111\u1ea7u v\u1edbi ba th\u00e0nh ph\u1ea7n li\u00ean k\u1ebft v\u1edbi nhau: m\u1ed9t bi\u1ec3u m\u1eabu \u0111o l\u01b0\u1eddng, m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c tuy\u1ebfn v\u00e0 m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd ngo\u1ea1i l\u1ec7. Trong Jodoo<\/a><\/strong>, H\u1ec7 th\u1ed1ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng nh\u01b0 m\u1ed9t \u1ee9ng d\u1ee5ng kh\u00f4ng c\u1ea7n l\u1eadp tr\u00ecnh v\u1edbi quy\u1ec1n truy c\u1eadp d\u1ef1a tr\u00ean vai tr\u00f2, cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh g\u1eedi d\u1eef li\u1ec7u, k\u1ef9 s\u01b0 xem x\u00e9t t\u00edn hi\u1ec7u v\u00e0 qu\u1ea3n l\u00fd theo d\u00f5i xu h\u01b0\u1edbng \u1edf c\u1ea5p nh\u00e0 m\u00e1y m\u00e0 kh\u00f4ng c\u1ea7n ch\u1ec9nh s\u1eeda d\u1eef li\u1ec7u th\u00f4. C\u1ea5u tr\u00fac n\u00e0y h\u1ed7 tr\u1ee3 vi\u1ec7c th\u1ef1c hi\u1ec7n SPC h\u00e0ng ng\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n ch\u1edd b\u1ed9 ph\u1eadn CNTT x\u00e2y d\u1ef1ng m\u00f4-\u0111un ch\u1ea5t l\u01b0\u1ee3ng t\u00f9y ch\u1ec9nh.<\/p>\n\n\n\n

Theo th\u1eddi gian, quy tr\u00ecnh l\u00e0m vi\u1ec7c t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng \u0111\u1ec3 bao g\u1ed3m ph\u00ea duy\u1ec7t nhi\u1ec1u l\u1edbp., CAPA<\/a><\/strong> Vi\u1ec7c theo d\u00f5i, l\u1ecbch s\u1eed ki\u1ec3m to\u00e1n v\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn h\u1ed3 s\u01a1 b\u1ea3o tr\u00ec ho\u1eb7c thay \u0111\u1ed5i c\u00f4ng c\u1ee5 r\u1ea5t quan tr\u1ecdng v\u00ec c\u00e2u h\u1ecfi th\u1ef1c s\u1ef1 kh\u00f4ng ch\u1ec9 l\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea (SPC), m\u00e0 c\u00f2n l\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u1ea3n h\u1ed3i c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i tr\u00ean c\u00e1c ca l\u00e0m vi\u1ec7c v\u00e0 d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. Khi d\u1eef li\u1ec7u SPC, c\u1ea3nh b\u00e1o v\u00e0 theo d\u00f5i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c duy nh\u1ea5t, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng nhanh h\u01a1n, chu\u1ea9n h\u00f3a c\u00e1c quy\u1ebft \u0111\u1ecbnh v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 bi\u1ebfn \u0111\u1ed9ng tr\u1edf th\u00e0nh l\u1ed7i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u00e1ch h\u00e0ng.<\/p>\n\n\n\n

<\/span>K\u1ebft lu\u1eadn: N\u00e2ng cao kh\u1ea3 n\u0103ng d\u1ef1 \u0111o\u00e1n c\u1ee7a SPC v\u1edbi h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt s\u1ed1 linh ho\u1ea1t.<\/span><\/h2>\n\n\n\n

Ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea<\/a><\/strong> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y hi\u1ec7u qu\u1ea3 khi c\u00e1c nh\u00f3m coi s\u1ef1 bi\u1ebfn \u0111\u1ed9ng nh\u01b0 m\u1ed9t t\u00edn hi\u1ec7u v\u1eadn h\u00e0nh, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t b\u00e1o c\u00e1o ch\u1ea5t l\u01b0\u1ee3ng sau khi s\u1ef1 vi\u1ec7c \u0111\u00e3 x\u1ea3y ra. \u0110\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 qu\u1ea3n l\u00fd s\u1ea3n xu\u1ea5t, m\u1ee5c ti\u00eau r\u1ea5t \u0111\u01a1n gi\u1ea3n: hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 bi\u1ebfn \u0111\u1ed9ng n\u00e0o l\u00e0 b\u00ecnh th\u01b0\u1eddng, ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c m\u00f4 h\u00ecnh b\u1ea5t th\u01b0\u1eddng v\u00e0 h\u00e0nh \u0111\u1ed9ng tr\u01b0\u1edbc khi ph\u1ebf ph\u1ea9m, s\u1ea3n ph\u1ea9m ph\u1ea3i l\u00e0m l\u1ea1i ho\u1eb7c khi\u1ebfu n\u1ea1i c\u1ee7a kh\u00e1ch h\u00e0ng gia t\u0103ng. Khi bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c \u0111\u1ecdc \u0111\u00fang c\u00e1ch v\u00e0 k\u1ebft h\u1ee3p v\u1edbi c\u00e1c k\u1ebf ho\u1ea1ch ph\u1ea3n \u1ee9ng r\u00f5 r\u00e0ng, SPC tr\u1edf th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng th\u1ef1c ti\u1ec5n \u0111\u1ec3 ng\u0103n ng\u1eeba khuy\u1ebft t\u1eadt thay v\u00ec ch\u1ec9 ph\u00e2n lo\u1ea1i ch\u00fang.<\/p>\n\n\n\n

Th\u00e1ch th\u1ee9c hi\u1ebfm khi ch\u1ec9 n\u1eb1m \u1edf l\u00fd thuy\u1ebft. T\u1ea1i nhi\u1ec1u nh\u00e0 m\u00e1y, SPC (Ki\u1ec3m so\u00e1t quy tr\u00ecnh th\u1ed1ng k\u00ea) th\u1ea5t b\u1ea1i v\u00ec d\u1eef li\u1ec7u b\u1ecb ch\u1eadm tr\u1ec5, vi\u1ec7c xem x\u00e9t bi\u1ec3u \u0111\u1ed3 kh\u00f4ng nh\u1ea5t qu\u00e1n v\u00e0 c\u00e1c h\u00e0nh \u0111\u1ed9ng ti\u1ebfp theo kh\u00f4ng \u0111\u01b0\u1ee3c ghi ch\u00e9p l\u1ea1i \u1edf m\u1ed9t n\u01a1i. \u0110\u00f3 l\u00e0 l\u00fac quy tr\u00ecnh l\u00e0m vi\u1ec7c k\u1ef9 thu\u1eadt s\u1ed1 linh ho\u1ea1t ph\u00e1t huy t\u00e1c d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec1u ca l\u00e0m vi\u1ec7c, n\u01a1i t\u1ed1c \u0111\u1ed9 v\u00e0 tr\u00e1ch nhi\u1ec7m gi\u1ea3i tr\u00ecnh l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng.<\/p>\n\n\n\n

Jodoo<\/a><\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng s\u1ea3n xu\u1ea5t tinh g\u1ecdn kh\u00f4ng c\u1ea7n l\u1eadp tr\u00ecnh, gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t x\u00e2y d\u1ef1ng quy tr\u00ecnh SPC d\u1ef1a tr\u00ean c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf c\u1ee7a h\u1ecd. B\u1ea1n c\u00f3 th\u1ec3 s\u1ed1 h\u00f3a vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u \u0111o l\u01b0\u1eddng, c\u1eadp nh\u1eadt b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n theo th\u1eddi gian th\u1ef1c, k\u00edch ho\u1ea1t c\u1ea3nh b\u00e1o cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n ngo\u00e0i t\u1ea7m ki\u1ec3m so\u00e1t v\u00e0 \u0111\u1ecbnh tuy\u1ebfn c\u00e1c h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c m\u00e0 kh\u00f4ng c\u1ea7n tri\u1ec3n khai ph\u1ea7n m\u1ec1m t\u1ed1n th\u1eddi gian. N\u1ebfu b\u1ea1n mu\u1ed1n l\u00e0m cho SPC nhanh h\u01a1n, minh b\u1ea1ch h\u01a1n v\u00e0 d\u1ec5 duy tr\u00ec h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3... b\u1eaft \u0111\u1ea7u d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed<\/a><\/strong> ho\u1eb7c \u0110\u1eb7t l\u1ecbch d\u00f9ng th\u1eed<\/a><\/strong> \u0110\u1ec3 t\u00ecm hi\u1ec3u xem lo\u1ea1i c\u00e2y n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi c\u00e2y c\u1ee7a b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"

T\u00ecm hi\u1ec3u c\u00e1ch Ki\u1ec3m so\u00e1t Quy tr\u00ecnh Th\u1ed1ng k\u00ea (SPC) gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm s\u1ef1 bi\u1ebfn \u0111\u1ed9ng v\u00e0 gi\u1ea3m thi\u1ec3u l\u1ed7i. Xem c\u00e1ch Jodoo s\u1ed1 h\u00f3a SPC. B\u1eaft \u0111\u1ea7u d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed.<\/p>","protected":false},"author":1,"featured_media":9173,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-9087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions"],"blocksy_meta":[],"yoast_head":"\nStatistical Process Control (SPC): How Manufacturers Use Data to Prevent Defects - Jodoo Blog<\/title>\n<meta name=\"description\" content=\"Learn how Statistical Process Control (SPC) helps detect variation early and reduce defects. See how Jodoo digitizes SPC. 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