{"id":12194,"date":"2022-07-21T11:22:55","date_gmt":"2022-07-21T03:22:55","guid":{"rendered":"https:\/\/www.focoinduction.com\/do-cung-cua-cac-bo-phan-thep-toi-cam-ung-la-bao-nhieu\/"},"modified":"2025-01-02T11:14:55","modified_gmt":"2025-01-02T03:14:55","slug":"do-cung-cua-cac-bo-phan-thep-toi-cam-ung-la-bao-nhieu","status":"publish","type":"post","link":"https:\/\/www.focoinduction.com\/vi\/do-cung-cua-cac-bo-phan-thep-toi-cam-ung-la-bao-nhieu\/","title":{"rendered":"\u0110\u1ed9 c\u1ee9ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn th\u00e9p t\u00f4i c\u1ea3m \u1ee9ng l\u00e0 bao nhi\u00eau?"},"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>Gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p l\u00e0 m\u1ed9t ti\u00eau ch\u00ed quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh t\u00f4i c\u1ea3m \u1ee9ng. T\u00f4i c\u1ea3m \u1ee9ng l\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb t\u00f4i c\u1ea3m \u1ee9ng \u0111\u1ec3 l\u00e0m n\u00f3ng nhanh v\u00e0 sau \u0111\u00f3 l\u00e0m ngu\u1ed9i b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i kim lo\u1ea1i. M\u1ee5c \u0111\u00edch c\u1ee7a n\u00f3 l\u00e0 l\u00e0m cho \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn cao h\u01a1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ea7n thi\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao. Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u t\u00f4i c\u1ea3m \u1ee9ng, ch\u00fang ta c\u1ea7n x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 c\u1ee9ng m\u1ee5c ti\u00eau \u0111\u1ec3 x\u1eed l\u00fd nhi\u1ec7t ph\u00f4i. Sau \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng c\u1ee7a ph\u00f4i c\u1ea7n l\u00e0m ngu\u1ed9i v\u00e0 ph\u1ea1m vi gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u1ee7a m\u1ed9t s\u1ed1 ph\u00f4i kim lo\u1ea1i.   <\/p>\n<h2>T\u00ednh to\u00e1n gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p trong qu\u00e1 tr\u00ecnh t\u00f4i c\u1ea3m \u1ee9ng<\/h2>\n<p>Gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t \u0111\u1ea1t \u0111\u01b0\u1ee3c sau khi t\u00f4i th\u00e9p c\u1ea3m \u1ee9ng c\u00f3 li\u00ean quan ch\u1eb7t ch\u1ebd \u0111\u1ebfn h\u00e0m l\u01b0\u1ee3ng cacbon c\u1ee7a th\u00e9p. Khi \u03c9(C) c\u1ee7a th\u00e9p l\u00e0 0,15 %-0.75% , c\u00f4ng th\u1ee9c t\u00ednh gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng nh\u01b0 sau:<br \/>\n HRC=21,5+60\u00d7(2C+1,3\u00d7C\u00b2)<br \/>\n C: gi\u00e1 tr\u1ecb \u03c9(C) c\u1ee7a th\u00e9p. HRC: Gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng trung b\u00ecnh c\u1ee7a l\u1edbp t\u00f4i c\u1ee9ng martensitic<br \/>\n \u0110\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p sau khi t\u00f4i c\u1ea3m \u1ee9ng v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 ph\u1ea3n \u00e1nh kh\u1ea3 n\u0103ng ch\u1ed1ng bi\u1ebfn d\u1ea1ng d\u1ebbo c\u1ee7a khu v\u1ef1c c\u1ee5c b\u1ed9 tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u kim lo\u1ea1i. Trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n quy c\u00e1ch v\u1eadt li\u1ec7u v\u00e0 x\u1eed l\u00fd nhi\u1ec7t, n\u00f3 c\u00f3 m\u1ed1i quan h\u1ec7 t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t k\u00e9o, u\u1ed1n v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t kh\u00e1c c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n<h2>Gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng chung c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn th\u00e9p sau khi t\u00f4i c\u1ea3m \u1ee9ng<\/h2>\n<p>Ph\u1ea1m vi gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng c\u1ee7a ph\u00f4i sau khi t\u00f4i c\u1ea3m \u1ee9ng c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn. Ph\u1ea1m vi gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng n\u00f3i chung nh\u01b0 sau:<br \/>\n 1. C\u00e1c chi ti\u1ebft gia c\u00f4ng d\u00f9ng \u0111\u1ec3 ma s\u00e1t nh\u01b0 c\u1ed5 tr\u1ee5c khu\u1ef7u, m\u1eb7t cam: \u0111\u1ed9 c\u1ee9ng c\u00e0ng cao th\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u00e0ng t\u1ed1t. Ph\u1ea1m vi gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng th\u00f4ng th\u01b0\u1eddng c\u1ee7a c\u1ed5 tr\u1ee5c khu\u1ef7u l\u00e0 55-62HRC, gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng th\u00f4ng th\u01b0\u1eddng c\u1ee7a tr\u1ee5c cam l\u00e0 56-63HRC.<br \/>\n 2. C\u00e1c b\u1ed9 ph\u1eadn d\u00f9ng \u0111\u1ec3 nghi\u1ec1n, xo\u1eafn, c\u1eaft ph\u1ea3i c\u00f3 \u0111\u1ed9 c\u1ee9ng cao. Gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng th\u01b0\u1eddng d\u00f9ng l\u00e0 56-63HRC v\u00e0 50-55HRC cho b\u1ec1 m\u1eb7t b\u00faa r\u00e8n, tr\u1ee5c xe \u00f4 t\u00f4, ch\u1ed1t l\u00f2 xo l\u00e1, v.v.<br \/>\n 3. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu t\u1ea3i tr\u1ecdng va \u0111\u1eadp, ho\u1eb7c \u0111\u1ed1i v\u1edbi b\u00e1nh r\u0103ng, r\u00e3nh, v.v., khi ch\u00fang \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i m\u1ed9t ph\u1ea7n v\u00e0 y\u00eau c\u1ea7u \u0111\u1ed9 d\u1ebbo dai, \u0111\u1ed9 c\u1ee9ng ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1ea3m th\u00edch h\u1ee3p. B\u00e1nh r\u0103ng v\u00e0nh \u0111ai b\u00e1nh \u0111\u00e0 s\u1eed d\u1ee5ng 48-56HRC ho\u1eb7c 40-48HRC.<br \/>\n 4. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn gang x\u00e1m, gang c\u1ea7u v\u00e0 gang d\u1ebbo, do c\u00f3 than ch\u00ec, \u0111\u1ed9 c\u1ee9ng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng m\u00e1y th\u1eed \u0111\u1ed9 c\u1ee9ng Rockwell l\u00e0 \u0111\u1ed9 c\u1ee9ng trung b\u00ecnh c\u1ee7a martensite v\u00e0 than ch\u00ec. \u0110\u1ed9 c\u1ee9ng c\u1ee7a gang c\u1ea7u c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 45-55HRC, v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a gang x\u00e1m c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi tr\u00ean 38HRC ho\u1eb7c tr\u00ean 40HRC.     <\/p>\n<h2>Ki\u1ec3m so\u00e1t gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng<\/h2>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p sau khi t\u00f4i c\u1ea3m \u1ee9ng \u0111\u1ea1t ti\u00eau chu\u1ea9n, th\u1eddi gian gia nhi\u1ec7t v\u00e0 nhi\u1ec7t \u0111\u1ed9 ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c. Do \u0111\u00f3, thi\u1ebft b\u1ecb gia nhi\u1ec7t c\u1ea3m \u1ee9ng ph\u1ea3i \u0111\u01b0\u1ee3c trang b\u1ecb h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 t\u01b0\u01a1ng \u1ee9ng v\u00e0 b\u1ed9 h\u1eb9n gi\u1edd th\u1eddi gian gia nhi\u1ec7t. Ngo\u00e0i ra, h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ph\u1ea3i \u0111\u01b0\u1ee3c g\u1ee1 l\u1ed7i tr\u01b0\u1edbc khi gia nhi\u1ec7t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a b\u1ed9 h\u1eb9n gi\u1edd ph\u1ea3i \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n. B\u1ea1n c\u00f3 mu\u1ed1n t\u00f4i c\u1ea3m \u1ee9ng b\u00e1nh r\u0103ng ho\u1eb7c tr\u1ee5c c\u1ee7a m\u00ecnh kh\u00f4ng? Ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.focoinduction.com\/vi\/cac-san-pham\/may-toi-cam-ung\/\">c\u00e1c m\u00e1y t\u00f4i c\u1ea3m \u1ee9ng<\/a><\/span> ch\u1ea5t l\u01b0\u1ee3ng cao.<br \/>\n T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.focoinduction.com\/vi\/ung-dung\/lam-cung-cam-ung\/\">\u1ee9ng d\u1ee5ng t\u00f4i c\u1ea3m \u1ee9ng<\/a><\/span> .<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":12196,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[245],"class_list":["post-12194","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-198","tag-lam-cung-cam-ung"],"_links":{"self":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/posts\/12194","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=12194"}],"version-history":[{"count":0,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/posts\/12194\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/media\/12196"}],"wp:attachment":[{"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/media?parent=12194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/categories?post=12194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.focoinduction.com\/vi\/wp-json\/wp\/v2\/tags?post=12194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}