{"id":4627,"date":"2026-11-03T09:11:32","date_gmt":"2026-11-03T02:11:32","guid":{"rendered":"https:\/\/aktc.com.vn\/?p=4627"},"modified":"2026-11-03T09:11:32","modified_gmt":"2026-11-03T02:11:32","slug":"lo-kim-mat-ca-va-bot-khi-trong-son-nuoc-ba-khuyet-tat-de-nham-lan-nhung-khac-co-che","status":"publish","type":"post","link":"https:\/\/aktc.com.vn\/en\/lo-kim-mat-ca-va-bot-khi-trong-son-nuoc-ba-khuyet-tat-de-nham-lan-nhung-khac-co-che\/","title":{"rendered":"L\u1ed6 KIM, M\u1eaeT C\u00c1 V\u00c0 B\u1eccT KH\u00cd TRONG S\u01a0N N\u01af\u1edaC: BA KHUY\u1ebeT T\u1eacT D\u1ec4 NH\u1ea6M L\u1eaaN NH\u01afNG KH\u00c1C C\u01a0 CH\u1ebe"},"content":{"rendered":"

Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 thi c\u00f4ng s\u01a1n g\u1ed7 g\u1ed1c n\u01b0\u1edbc, b\u1ec1 m\u1eb7t s\u01a1n \u0111\u00f4i khi xu\u1ea5t hi\u1ec7n nh\u1eefng l\u1ed7 nh\u1ecf, v\u1ebft l\u00f5m tr\u00f2n ho\u1eb7c bong b\u00f3ng li ti. Nh\u1eefng khuy\u1ebft t\u1eadt n\u00e0y kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh th\u1ea9m m\u1ef9 m\u00e0 c\u00f2n c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 c\u1ee7a m\u00e0ng s\u01a1n.<\/p>\n

\u0110i\u1ec1u \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 l\u1ed7 kim (pinholes), m\u1eaft c\u00e1 (fisheyes) v\u00e0 b\u1ecdt kh\u00ed (bubbles) th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u00ec h\u00ecnh d\u1ea1ng t\u01b0\u01a1ng \u0111\u1ed1i gi\u1ed1ng nhau. Tuy nhi\u00ean, m\u1ed7i khuy\u1ebft t\u1eadt c\u00f3 c\u01a1 ch\u1ebf h\u00ecnh th\u00e0nh ri\u00eang. N\u1ebfu kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u00fang nguy\u00ean nh\u00e2n, vi\u1ec7c b\u1ed5 sung ch\u1ea5t ph\u00e1 b\u1ecdt ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng th\u1ee9c c\u00f3 th\u1ec3 kh\u00f4ng mang l\u1ea1i hi\u1ec7u qu\u1ea3 nh\u01b0 mong mu\u1ed1n.<\/p>\n

1.L\u1ed6 KIM L\u00c0 G\u00cc?<\/strong><\/p>\n

L\u1ed7 kim l\u00e0 nh\u1eefng l\u1ed7 nh\u1ecf xu\u1ea5t hi\u1ec7n tr\u00ean b\u1ec1 m\u1eb7t m\u00e0ng s\u01a1n sau khi kh\u00f4, \u0111\u00f4i khi xuy\u00ean qua l\u1edbp s\u01a1n v\u00e0 \u0111\u1ec3 l\u1ed9 l\u1edbp b\u00ean d\u01b0\u1edbi.<\/p>\n

Nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p l\u00e0 kh\u00f4ng kh\u00ed ho\u1eb7c c\u00e1c ch\u1ea5t d\u1ec5 bay h\u01a1i b\u1ecb gi\u1eef l\u1ea1i trong m\u00e0ng s\u01a1n. Khi n\u01b0\u1edbc bay h\u01a1i v\u00e0 m\u00e0ng polymer d\u1ea7n h\u00ecnh th\u00e0nh, kh\u00ed b\u00ean trong c\u1ea7n c\u00f3 \u0111\u1ee7 th\u1eddi gian \u0111\u1ec3 tho\u00e1t ra ngo\u00e0i. N\u1ebfu b\u1ec1 m\u1eb7t s\u01a1n kh\u00f4 ho\u1eb7c \u0111\u00f3ng m\u00e0ng qu\u00e1 nhanh, \u0111\u01b0\u1eddng tho\u00e1t kh\u00ed c\u00f3 th\u1ec3 b\u1ecb thu h\u1eb9p. Kh\u00ed ti\u1ebfp t\u1ee5c tho\u00e1t ra s\u1ebd \u0111\u1ec3 l\u1ea1i nh\u1eefng l\u1ed7 nh\u1ecf tr\u00ean m\u00e0ng.<\/p>\n

T\u00ecnh tr\u1ea1ng n\u00e0y c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n khi khu\u1ea5y s\u01a1n qu\u00e1 m\u1ea1nh l\u00e0m cu\u1ed1n kh\u00ed v\u00e0o h\u1ec7, thi c\u00f4ng l\u1edbp s\u01a1n qu\u00e1 d\u00e0y ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n s\u1ea5y khi\u1ebfn b\u1ec1 m\u1eb7t kh\u00f4 nhanh h\u01a1n ph\u1ea7n b\u00ean trong.<\/p>\n

H\u01b0\u1edbng x\u1eed l\u00fd:<\/strong> Ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 khu\u1ea5y, h\u1ea1n ch\u1ebf cu\u1ed1n kh\u00ed, \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 d\u00e0y m\u00e0ng v\u00e0 th\u1eddi gian kh\u00f4 gi\u1eefa c\u00e1c l\u1edbp. \u0110\u1ed3ng th\u1eddi, c\u1ea7n ki\u1ec3m tra \u0111\u1ed9 nh\u1edbt v\u00e0 \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng \u0111\u1ec3 m\u00e0ng s\u01a1n c\u00f3 \u0111\u1ee7 th\u1eddi gian tho\u00e1t kh\u00ed tr\u01b0\u1edbc khi h\u00ecnh th\u00e0nh c\u1ea5u tr\u00fac \u1ed5n \u0111\u1ecbnh.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

2.M\u1eaeT C\u00c1 L\u00c0 G\u00cc?<\/strong><\/p>\n

M\u1eaft c\u00e1 l\u00e0 khuy\u1ebft t\u1eadt c\u00f3 h\u00ecnh d\u1ea1ng gi\u1ed1ng m\u1ed9t mi\u1ec7ng h\u1ed1 tr\u00f2n nh\u1ecf. M\u00e0ng s\u01a1n xung quanh v\u1eabn t\u1ed3n t\u1ea1i nh\u01b0ng b\u1ecb co r\u00fat, kh\u00f4ng ph\u1ee7 \u0111\u1ec1u t\u1ea1i v\u1ecb tr\u00ed trung t\u00e2m. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, ph\u1ea7n gi\u1eefa \u0111\u1ec3 l\u1ed9 l\u1edbp s\u01a1n b\u00ean d\u01b0\u1edbi ho\u1eb7c b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u.<\/p>\n

Nguy\u00ean nh\u00e2n quan tr\u1ecdng l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t gi\u1eefa s\u01a1n v\u00e0 khu v\u1ef1c b\u1ecb nhi\u1ec5m b\u1ea9n. Ch\u1eb3ng h\u1ea1n, d\u1ea7u m\u1ee1, silicone ho\u1eb7c d\u01b0 l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t s\u1ed1 ch\u1ea5t tr\u00ean b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 khi\u1ebfn s\u01a1n kh\u00f3 th\u1ea5m \u01b0\u1edbt. Thay v\u00ec tr\u1ea3i \u0111\u1ec1u, m\u00e0ng s\u01a1n c\u00f3 xu h\u01b0\u1edbng r\u00fat kh\u1ecfi khu v\u1ef1c \u0111\u00f3 v\u00e0 t\u1ea1o th\u00e0nh v\u1ebft l\u00f5m.<\/p>\n

T\u00ecnh tr\u1ea1ng t\u01b0\u01a1ng t\u1ef1 c\u0169ng c\u00f3 th\u1ec3 x\u1ea3y ra khi c\u00e1c th\u00e0nh ph\u1ea7n trong h\u1ec7 s\u01a1n kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c ph\u1ee5 gia b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn kh\u00f4ng ph\u00f9 h\u1ee3p.<\/p>\n

H\u01b0\u1edbng x\u1eed l\u00fd:<\/strong> Ki\u1ec3m tra \u0111\u1ed9 s\u1ea1ch c\u1ee7a b\u1ec1 m\u1eb7t g\u1ed7, d\u1ee5ng c\u1ee5 thi c\u00f4ng, \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 thi\u1ebft b\u1ecb ti\u1ebfp x\u00fac v\u1edbi s\u01a1n. N\u1ebfu nghi ng\u1edd nhi\u1ec5m silicone ho\u1eb7c d\u1ea7u m\u1ee1, c\u1ea7n t\u00ecm v\u00e0 lo\u1ea1i b\u1ecf ngu\u1ed3n nhi\u1ec5m b\u1ea9n tr\u01b0\u1edbc khi \u0111i\u1ec1u ch\u1ec9nh c\u00f4ng th\u1ee9c. Ph\u1ee5 gia th\u1ea5m \u01b0\u1edbt ho\u1eb7c ph\u1ee5 gia c\u00e2n b\u1eb1ng b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3, nh\u01b0ng ph\u1ea3i \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u0111\u1ec3 b\u1ea3o \u0111\u1ea3m t\u01b0\u01a1ng th\u00edch v\u1edbi to\u00e0n b\u1ed9 h\u1ec7 s\u01a1n.<\/p>\n

\"\"<\/a><\/p>\n

3.B\u1eccT KH\u00cd L\u00c0 G\u00cc?<\/strong><\/p>\n

Kh\u00e1c v\u1edbi l\u1ed7 kim, b\u1ecdt kh\u00ed l\u00e0 nh\u1eefng t\u00fai kh\u00ed h\u00ecnh th\u00e0nh trong s\u01a1n ho\u1eb7c b\u1ecb gi\u1eef l\u1ea1i khi s\u01a1n \u0111\u01b0\u1ee3c thi c\u00f4ng. B\u1ecdt c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n ngay trong qu\u00e1 tr\u00ecnh khu\u1ea5y, b\u01a1m, l\u0103n, qu\u00e9t ho\u1eb7c phun s\u01a1n.<\/p>\n

Trong s\u01a1n g\u1ed1c n\u01b0\u1edbc, c\u00e1c ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a b\u1ecdt, khi\u1ebfn m\u00e0ng ch\u1ea5t l\u1ecfng bao quanh b\u1ecdt kh\u00f3 v\u1ee1. N\u1ebfu b\u1ecdt kh\u00f4ng k\u1ecbp tho\u00e1t ra tr\u01b0\u1edbc khi m\u00e0ng s\u01a1n kh\u00f4, ch\u00fang c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i c\u00e1c l\u1ed7 ho\u1eb7c khuy\u1ebft t\u1eadt tr\u00ean b\u1ec1 m\u1eb7t.<\/p>\n

V\u00ed d\u1ee5, khi khu\u1ea5y s\u01a1n \u1edf t\u1ed1c \u0111\u1ed9 cao, kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 b\u1ecb cu\u1ed1n v\u00e0o h\u1ed7n h\u1ee3p. N\u1ebfu h\u1ec7 s\u01a1n ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n \u1ed5n \u0111\u1ecbnh b\u1ecdt, nh\u1eefng b\u1ecdt kh\u00ed n\u00e0y t\u1ed3n t\u1ea1i l\u00e2u h\u01a1n v\u00e0 kh\u00f3 tho\u00e1t ra. Khi thi c\u00f4ng, hi\u1ec7n t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 x\u1ea3y ra n\u1ebfu thao t\u00e1c l\u0103n ho\u1eb7c qu\u00e9t t\u1ea1o ra qu\u00e1 nhi\u1ec1u b\u1ecdt.<\/p>\n

H\u01b0\u1edbng x\u1eed l\u00fd:<\/strong> Ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 v\u00e0 th\u1eddi gian khu\u1ea5y, h\u1ea1n ch\u1ebf cu\u1ed1n kh\u00ed trong qu\u00e1 tr\u00ecnh b\u01a1m v\u00e0 thi c\u00f4ng. L\u1ef1a ch\u1ecdn ch\u1ea5t ph\u00e1 b\u1ecdt ph\u00f9 h\u1ee3p c\u0169ng r\u1ea5t quan tr\u1ecdng, nh\u01b0ng c\u1ea7n c\u00e2n b\u1eb1ng hi\u1ec7u qu\u1ea3 ph\u00e1 b\u1ecdt v\u1edbi kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t.<\/p>\n

\"\"<\/a><\/p>\n

4.K\u1ebeT LU\u1eacN<\/strong><\/p>\n

L\u1ed7 kim, m\u1eaft c\u00e1 v\u00e0 b\u1ecdt kh\u00ed \u0111\u1ec1u c\u00f3 th\u1ec3 khi\u1ebfn b\u1ec1 m\u1eb7t s\u01a1n g\u1ed1c n\u01b0\u1edbc m\u1ea5t \u0111i \u0111\u1ed9 ph\u1eb3ng v\u00e0 t\u00ednh th\u1ea9m m\u1ef9, nh\u01b0ng kh\u00f4ng n\u00ean x\u1eed l\u00fd ch\u00fang theo c\u00f9ng m\u1ed9t c\u00e1ch. L\u1ed7 kim c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t t\u1eeb kh\u1ea3 n\u0103ng tho\u00e1t kh\u00ed v\u00e0 qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh m\u00e0ng; m\u1eaft c\u00e1 c\u1ea7n t\u1eadp trung v\u00e0o hi\u1ec7n t\u01b0\u1ee3ng th\u1ea5m \u01b0\u1edbt v\u00e0 nhi\u1ec5m b\u1ea9n; c\u00f2n b\u1ecdt kh\u00ed \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh cu\u1ed1n kh\u00ed v\u00e0 l\u1ef1a ch\u1ecdn ch\u1ea5t ph\u00e1 b\u1ecdt ph\u00f9 h\u1ee3p.<\/p>\n

\u0110\u1ed1i v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t s\u01a1n g\u1ed7, vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u00fang c\u01a1 ch\u1ebf h\u00ecnh th\u00e0nh khuy\u1ebft t\u1eadt l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 t\u1ed1i \u01b0u c\u00f4ng th\u1ee9c, gi\u1ea3m t\u1ef7 l\u1ec7 s\u1ea3n ph\u1ea9m l\u1ed7i v\u00e0 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t \u1ed5n \u0111\u1ecbnh.<\/p>","protected":false},"excerpt":{"rendered":"

Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 thi c\u00f4ng s\u01a1n g\u1ed7 g\u1ed1c n\u01b0\u1edbc, b\u1ec1 m\u1eb7t s\u01a1n \u0111\u00f4i khi xu\u1ea5t hi\u1ec7n nh\u1eefng l\u1ed7 nh\u1ecf, v\u1ebft l\u00f5m tr\u00f2n […]<\/p>","protected":false},"author":5,"featured_media":4628,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4627","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts\/4627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/comments?post=4627"}],"version-history":[{"count":0,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/posts\/4627\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/media\/4628"}],"wp:attachment":[{"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/media?parent=4627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/categories?post=4627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aktc.com.vn\/en\/wp-json\/wp\/v2\/tags?post=4627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}