{"id":12164,"date":"2022-07-08T15:16:24","date_gmt":"2022-07-08T07:16:24","guid":{"rendered":"https:\/\/www.focoinduction.com\/loi-ich-cua-phuong-phap-u-cam-ung-doi-voi-moi-han-ong-thep-la-gi\/"},"modified":"2025-01-02T11:14:46","modified_gmt":"2025-01-02T03:14:46","slug":"loi-ich-cua-phuong-phap-u-cam-ung-doi-voi-moi-han-ong-thep-la-gi","status":"publish","type":"post","link":"https:\/\/www.focoinduction.com\/vi\/loi-ich-cua-phuong-phap-u-cam-ung-doi-voi-moi-han-ong-thep-la-gi\/","title":{"rendered":"L\u1ee3i \u00edch c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p \u1ee7 c\u1ea3m \u1ee9ng \u0111\u1ed1i v\u1edbi m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p l\u00e0 g\u00ec?"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p>\u1ee6 c\u1ea3m \u1ee9ng c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf hi\u1ec7u qu\u1ea3 c\u00e1c khuy\u1ebft t\u1eadt v\u1ec1 c\u1ea5u tr\u00fac c\u1ee7a m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p, c\u1ea3i thi\u1ec7n c\u1ea5u tr\u00fac, \u0111\u1ed3ng nh\u1ea5t h\u00f3a th\u00e0nh ph\u1ea7n v\u00e0 tinh ch\u1ebf c\u00e1c h\u1ea1t, c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p v\u00e0 gi\u1ea3m \u1ee9ng su\u1ea5t d\u01b0. Sau khi \u1ee7 c\u1ea3m \u1ee9ng, \u0111\u1ed9 c\u1ee9ng c\u1ee7a m\u1ed1i h\u00e0n gi\u1ea3m v\u00e0 \u0111\u1ed9 d\u1ebbo dai \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, c\u00f3 l\u1ee3i cho qu\u00e1 tr\u00ecnh gia c\u00f4ng ti\u1ebfp theo. Khi h\u00e0n, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a khu v\u1ef1c h\u00e0n r\u1ea5t cao v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a n\u01a1i kh\u00f4ng h\u00e0n t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p. S\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 g\u00e2y ra s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i v\u00ec nhi\u1ec7t. Do s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i v\u00ec nhi\u1ec7t, \u1ee9ng su\u1ea5t h\u00e0n \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ean trong. Do \u0111\u00f3, c\u1ea7n s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb \u1ee7 c\u1ea3m \u1ee9ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh \u1ee7 h\u00e0n nh\u1eb1m lo\u1ea1i b\u1ecf \u1ee9ng su\u1ea5t h\u00e0n v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai. <\/p>\n<h2>L\u1ee3i \u00edch c\u1ee7a \u1ee7 c\u1ea3m \u1ee9ng: Hai ph\u01b0\u01a1ng ph\u00e1p \u1ee7 c\u1ea3m \u1ee9ng cho m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p<\/h2>\n<p>Theo s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p, qu\u00e1 tr\u00ecnh \u1ee7 m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i: \u1ee7 m\u1ed1i h\u00e0n th\u1eb3ng d\u1ecdc \u1ed1ng th\u00e9p v\u00e0 \u1ee7 m\u1ed1i h\u00e0n tr\u00f2n \u0111\u1ed1i \u0111\u1ea7u.<\/p>\n<h3>1. \u1ee6 m\u1ed1i h\u00e0n th\u1eb3ng d\u1ecdc<\/h3>\n<p>M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a qu\u00e1 tr\u00ecnh \u1ee7 m\u1ed1i h\u00e0n th\u1eb3ng d\u1ecdc c\u1ee7a \u1ed1ng th\u00e9p l\u00e0 tinh ch\u1ec9nh c\u00e1c h\u1ea1t c\u1ee7a c\u1ea5u tr\u00fac kim lo\u1ea1i. Do m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c nung c\u1ea3m \u1ee9ng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 h\u00e0n v\u00e0 h\u00e0n, c\u00e1c h\u1ea1t trong v\u00f9ng \u0111\u01b0\u1ee3c nung tr\u1edf n\u00ean th\u00f4 h\u01a1n v\u00e0 qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i nhanh sau \u0111\u00f3 s\u1ebd g\u00e2y ra s\u1ef1 h\u00ecnh th\u00e0nh martensit cacbon th\u1ea5p trong v\u00f9ng n\u00e0y. M\u1eb7c d\u00f9 v\u1eadt li\u1ec7u th\u00e9p cacbon th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ed1 g\u1eafng tr\u00e1nh martensit cacbon th\u1ea5p trong m\u1ed1i h\u00e0n, nh\u01b0ng h\u00e0m l\u01b0\u1ee3ng cacbon c\u1ee5c b\u1ed9 c\u00f3 th\u1ec3 \u0111\u1ea1t g\u1ea5p 2-3 l\u1ea7n h\u00e0m l\u01b0\u1ee3ng cacbon th\u00f4ng th\u01b0\u1eddng do s\u1ef1 h\u00ecnh th\u00e0nh ph\u00e2n t\u1ea7ng trong qu\u00e1 tr\u00ecnh h\u00e0n. V\u00ed d\u1ee5, \u0111\u1ed1i v\u1edbi \u1ed1ng th\u00e9p c\u00f3 \u03c9(C) l\u00e0 0,06%, ph\u1ea7n ph\u00e2n t\u1ea7ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u03c9(C) 0,2%. Ngo\u00e0i ra, do h\u00e0m l\u01b0\u1ee3ng mangan trong th\u00e9p, \u0111\u1ed9 c\u1ee9ng c\u1ee5c b\u1ed9 c\u1ee7a m\u1ed1i h\u00e0n c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 40HRC. Ph\u1ea7n \u0111\u1ed9 c\u1ee9ng n\u00e0y d\u1ec5 b\u1ecb n\u1ee9t nh\u1ea5t, khi\u1ebfn \u1ed1ng th\u00e9p kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c. \u1ee6 c\u1ea3m \u1ee9ng m\u1ed1i h\u00e0n c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft hi\u1ec7u qu\u1ea3 v\u1ea5n \u0111\u1ec1 \u0111\u1ed9 c\u1ee9ng tr\u00ean. \u1ee6 c\u1ea3m \u1ee9ng c\u00f3 th\u1ec3 tinh ch\u1ec9nh c\u00e1c h\u1ea1t, gi\u1ea3m \u1ee9ng su\u1ea5t v\u00e0 gi\u1ea3m \u0111\u1ed9 c\u1ee9ng. V\u1edbi ph\u01b0\u01a1ng ph\u00e1p gia nhi\u1ec7t c\u1ea3m \u1ee9ng, ch\u1ec9 c\u00f3 ph\u1ea7n m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c gia nhi\u1ec7t. \u0110\u1ed1i v\u1edbi \u1ed1ng th\u00e9p c\u00f3 \u0111\u1ed9 d\u00e0y th\u00e0nh 8-15mm v\u00e0 chi\u1ec1u r\u1ed9ng m\u1ed1i h\u00e0n kho\u1ea3ng 20mm, ph\u01b0\u01a1ng ph\u00e1p gia nhi\u1ec7t c\u1ea3m \u1ee9ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u1ee7 r\u1ea5t hi\u1ec7u qu\u1ea3 v\u00e0 nhanh ch\u00f3ng, d\u1ec5 d\u00e0ng t\u1ef1 \u0111\u1ed9ng h\u00f3a qu\u00e1 tr\u00ecnh \u1ee7. Cu\u1ed9n d\u00e2y c\u1ea3m \u1ee9ng \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p gia nhi\u1ec7t t\u1eeb tr\u01b0\u1eddng ngang c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p gia nhi\u1ec7t m\u1eb7t ph\u1eb3ng. L\u00fac n\u00e0y, hi\u1ec7u su\u1ea5t \u0111i\u1ec7n r\u1ea5t cao, do \u0111\u00f3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n t\u1ea7n s\u1ed1 th\u1ea5p h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 1-3kHz. Nhi\u1ec7t \u0111\u1ed9 \u1ee7 c\u1ee7a m\u1ed1i h\u00e0n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u1ea5u tr\u00fac chu\u1ea9n h\u00f3a. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a v\u00f9ng m\u1ed1i h\u00e0n s\u1ebd l\u1edbn h\u01a1n k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a kim lo\u1ea1i c\u01a1 b\u1ea3n. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 th\u1ea5p, m\u1ed1i h\u00e0n s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c gia nhi\u1ec7t xuy\u00ean qua v\u00e0 c\u1ea5u tr\u00fac s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c tinh ch\u1ebf ho\u00e0n to\u00e0n.     <\/p>\n<h3>2. \u1ee6 m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p m\u00f4ng<\/h3>\n<p>Qu\u00e1 tr\u00ecnh \u1ee7 m\u1ed1i h\u00e0n \u0111\u1ed1i \u0111\u1ea7u th\u01b0\u1eddng s\u1eed d\u1ee5ng cu\u1ed9n c\u1ea3m \u1ee9ng tr\u00f2n. V\u1ec1 hi\u1ec7u su\u1ea5t gia nhi\u1ec7t c\u1ea3m \u1ee9ng, n\u00ean s\u1eed d\u1ee5ng t\u1ea7n s\u1ed1 cao h\u01a1n. M\u1ed1i h\u00e0n \u1ed1ng th\u00e9p th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u1ee7 b\u1eb1ng m\u00e1y gia nhi\u1ec7t c\u1ea3m \u1ee9ng t\u1ea7n s\u1ed1 cao. N\u00f3 c\u00f3 t\u1ed1c \u0111\u1ed9 \u1ee7 nhanh v\u00e0 hi\u1ec7u qu\u1ea3 cao.   <\/p>\n<h3>Ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng v\u00e0 c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a m\u1ed1i h\u00e0n \u1ed1ng th\u00e9p<\/h3>\n<p>C\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a v\u00f9ng chu\u1ea9n h\u00f3a ph\u1ea3i t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u1ee7a kim lo\u1ea1i c\u01a1 b\u1ea3n. C\u00e1c h\u1ea1t trong v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t d\u00e0y h\u01a1n c\u00e1c h\u1ea1t c\u1ee7a kim lo\u1ea1i c\u01a1 b\u1ea3n, cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 chu\u1ea9n h\u00f3a qu\u00e1 cao. \u0110\u1ed9 c\u1ee9ng c\u1ee7a v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t cao h\u01a1n \u0111\u1ed9 c\u1ee9ng c\u1ee7a kim lo\u1ea1i c\u01a1 b\u1ea3n, cho th\u1ea5y nhi\u1ec7t \u0111\u1ed9 chu\u1ea9n h\u00f3a qu\u00e1 th\u1ea5p. N\u1ebfu c\u00f3 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c h\u1ea1t th\u00f4 tr\u1ed9n l\u1eabn trong nhi\u1ec1u h\u1ea1t nh\u1ecf trong c\u1ea5u tr\u00fac vi m\u00f4, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 nhi\u1ec7t \u0111\u1ed9 chu\u1ea9n h\u00f3a cao h\u01a1n m\u1ed9t ch\u00fat v\u00e0 n\u00ean h\u1ea1 th\u1ea5p m\u1ed9t ch\u00fat. X\u1eed l\u00fd \u1ee7 c\u1ea3m \u1ee9ng l\u00e0 m\u1ed9t quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 d\u1ebbo c\u1ee7a ph\u00f4i kim lo\u1ea1i v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t gia c\u00f4ng.   <\/p>\n<p><a href=\"https:\/\/www.focoinduction.com\/vi\/loi-ich-cua-phuong-phap-u-cam-ung-la-gi\/\" target=\"_blank\" rel=\"noopener\"><em>Nh\u1ea5p \u0111\u1ec3 xem l\u1ee3i \u00edch c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p \u1ee7 c\u1ea3m \u1ee9ng.<\/em><\/a><\/p>\n<p><em>T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.focoinduction.com\/vi\/ung-dung\/u-cam-ung\/\">ph\u01b0\u01a1ng ph\u00e1p \u1ee7 c\u1ea3m \u1ee9ng<\/a><\/span> .<\/em><\/p>\n<p>H\u00e3y h\u1ecfi c\u00e1c k\u1ef9 s\u01b0 c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u1ec1 quy tr\u00ecnh \u1ee7 c\u1ea3m \u1ee9ng. <strong><a href=\"https:\/\/www.focoinduction.com\/vi\/lien-he\/\"><span style=\"color: #0000ff;\">Nh\u1eadn b\u00e1o gi\u00e1<\/span><\/a><\/strong> cho Thi\u1ebft b\u1ecb \u1ee7 c\u1ea3m \u1ee9ng!<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":12165,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[268],"class_list":["post-12164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-198","tag-u-cam-ung"],"_links":{"self":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/posts\/12164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/comments?post=12164"}],"version-history":[{"count":0,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/posts\/12164\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/media\/12165"}],"wp:attachment":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/media?parent=12164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/categories?post=12164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/tags?post=12164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}