{"id":675315,"date":"2024-11-08T22:19:09","date_gmt":"2024-11-08T21:19:09","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=675315"},"modified":"2024-11-08T22:19:09","modified_gmt":"2024-11-08T21:19:09","slug":"lam-the-nao-ngon-giao-nhiet-cat-xuyen-qua-kim-loai","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/lam-the-nao-ngon-giao-nhiet-cat-xuyen-qua-kim-loai\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u1eaft xuy\u00ean qua kim lo\u1ea1i"},"content":{"rendered":"<p class=\"sidekick\">Ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u1eaft kim lo\u1ea1i: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, nguy\u00ean l\u00fd truy\u1ec1n nhi\u1ec7t v\u00e0 \u1ee9ng d\u1ee5ng trong k\u1ef9 thu\u1eadt.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/lam_the_nao_ngon_giao_nhiet_cat_xuyen_qua_kim_loai.png\" alt=\"L\u00e0m th\u1ebf n\u00e0o ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u1eaft xuy\u00ean qua kim lo\u1ea1i\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>L\u00e0m th\u1ebf n\u00e0o ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u1eaft xuy\u00ean qua kim lo\u1ea1i<\/h2>\n<p>Ng\u1ecdn gi\u00e1o nhi\u1ec7t l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 tuy\u1ec7t v\u1eddi trong ng\u00e0nh c\u01a1 kh\u00ed v\u00e0 ch\u1ebf t\u1ea1o, gi\u00fap c\u1eaft v\u00e0 khoan xuy\u00ean qua kim lo\u1ea1i m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ng\u1ecdn gi\u00e1o nhi\u1ec7t d\u1ef1a tr\u00ean s\u1ef1 sinh nhi\u1ec7t cao \u0111\u1ec3 l\u00e0m n\u00f3ng ch\u1ea3y kim lo\u1ea1i, l\u00e0m cho vi\u1ec7c c\u1eaft tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. Ch\u00fang ta h\u00e3y kh\u00e1m ph\u00e1 c\u00e1ch ng\u1ecdn gi\u00e1o nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong th\u1ef1c t\u1ebf.<\/p>\n<h2>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ng\u1ecdn gi\u00e1o nhi\u1ec7t<\/h2>\n<p>Ng\u1ecdn gi\u00e1o nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch t\u1ea1o ra m\u1ed9t tia l\u1eeda nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao (c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn h\u00e0ng ng\u00e0n \u0111\u1ed9 C). Ngu\u1ed3n nhi\u1ec7t n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c b\u1ed9 ph\u1eadn sau:<\/p>\n<p><u1><\/p>\n<li>Ng\u1ecdn gi\u00e1o: B\u1ed9 ph\u1eadn ch\u00ednh c\u1ee7a c\u00f4ng c\u1ee5, n\u01a1i t\u1eadp trung kh\u00ed v\u00e0 \u0111i\u1ec7n.<\/li>\n<li>Kh\u00ed gas: Th\u01b0\u1eddng l\u00e0 oxy ho\u1eb7c acetylene, cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y.<\/li>\n<li>B\u1ed9 \u0111\u1ed1t: T\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n \u0111\u1ec3 \u0111\u1ed1t ch\u00e1y kh\u00ed t\u1ea1o nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<p><\/u1><\/p>\n<p>Khi kh\u00ed gas \u0111\u01b0\u1ee3c \u0111\u1ed1t ch\u00e1y, n\u00f3 t\u1ea1o ra m\u1ed9t lu\u1ed3ng nhi\u1ec7t m\u1ea1nh. Lu\u1ed3ng nhi\u1ec7t n\u00e0y t\u1eadp trung \u1edf \u0111\u1ea7u ng\u1ecdn gi\u00e1o v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 l\u00e0m tan ch\u1ea3y kim lo\u1ea1i. Sau \u0111\u00f3, th\u1ee7y l\u1ef1c ho\u1eb7c kh\u00ed n\u00e9n s\u1ebd th\u1ed5i kim lo\u1ea1i n\u00f3ng ch\u1ea3y ra kh\u1ecfi khu v\u1ef1c c\u1eaft, l\u00e0m cho qu\u00e1 tr\u00ecnh c\u1eaft g\u1ecdn g\u00e0ng v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n<h2>C\u00e1c b\u01b0\u1edbc c\u1eaft kim lo\u1ea1i b\u1eb1ng ng\u1ecdn gi\u00e1o nhi\u1ec7t<\/h2>\n<p><o1><\/p>\n<li><b>Chu\u1ea9n b\u1ecb:<\/b> B\u1eadt ng\u1ecdn gi\u00e1o v\u00e0 \u0111i\u1ec1u ch\u1ec9nh lu\u1ed3ng kh\u00ed gas \u0111\u1ec3 t\u1ea1o ra ng\u1ecdn l\u1eeda \u1ed5n \u0111\u1ecbnh, \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 mong mu\u1ed1n.<\/li>\n<li><b>Ti\u1ebfp c\u1eadn kim lo\u1ea1i:<\/b> \u0110\u01b0a ng\u1ecdn gi\u00e1o \u0111\u1ebfn khu v\u1ef1c c\u1ea7n c\u1eaft tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i.<\/li>\n<li><b>Ti\u1ebfp x\u00fac v\u00e0 di chuy\u1ec3n:<\/b> \u0110\u1eb7t \u0111\u1ea7u ng\u1ecdn gi\u00e1o \u1edf g\u00f3c c\u1eaft mong mu\u1ed1n v\u00e0 t\u1eeb t\u1eeb di chuy\u1ec3n theo \u0111\u01b0\u1eddng c\u1eaft. \u0110\u1ea3m b\u1ea3o gi\u1eef ng\u1ecdn gi\u00e1o \u1edf m\u1ed9t kho\u1ea3ng c\u00e1ch \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 t\u1ea1o ra m\u1ed9t ng\u1ecdn l\u1eeda \u0111\u1ec1u \u0111\u1eb7n.<\/li>\n<li><b>Ho\u00e0n th\u00e0nh:<\/b> Sau khi c\u1eaft ho\u00e0n t\u1ea5t, d\u1eebng lu\u1ed3ng kh\u00ed gas v\u00e0 \u0111\u1ec3 kim lo\u1ea1i ngu\u1ed9i d\u1ea7n tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c x\u1eed l\u00fd.<\/li>\n<p><\/o1><\/p>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a ng\u1ecdn gi\u00e1o nhi\u1ec7t<\/h2>\n<p>Ng\u1ecdn gi\u00e1o nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<p><u1><\/p>\n<li><b>Ch\u1ebf t\u1ea1o v\u00e0 s\u1eeda ch\u1eefa:<\/b> D\u00f9ng \u0111\u1ec3 c\u1eaft v\u00e0 h\u00e0n c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i trong ng\u00e0nh s\u1ea3n xu\u1ea5t k\u1ec3 c\u1ea3 nh\u1eefng c\u00f4ng vi\u1ec7c s\u1eeda ch\u1eefa thi\u1ebft b\u1ecb.<\/li>\n<li><b>X\u00e2y d\u1ef1ng:<\/b> D\u00f9ng \u0111\u1ec3 c\u1eaft c\u00e1c thanh d\u1ea7m v\u00e0 \u1ed1ng kim lo\u1ea1i trong c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng.<\/li>\n<li><b>C\u1ee9u h\u1ed9:<\/b> Trong t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p, ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u00f3 th\u1ec3 gi\u00fap c\u1eaft xuy\u00ean qua c\u00e1c c\u1eeda s\u1ed5, k\u1ebft c\u1ea5u kim lo\u1ea1i \u0111\u1ec3 gi\u1ea3i c\u1ee9u ng\u01b0\u1eddi b\u1ecb k\u1eb9t.<\/li>\n<p><\/u1><\/p>\n<p>S\u1ef1 linh ho\u1ea1t v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a ng\u1ecdn gi\u00e1o nhi\u1ec7t l\u00e0m cho c\u00f4ng c\u1ee5 n\u00e0y tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p. Vi\u1ec7c hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng c\u1ee7a n\u00f3 kh\u00f4ng ch\u1ec9 gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c m\u00e0 c\u00f2n gi\u1ea3m thi\u1ec3u r\u1ee7i ro trong qu\u00e1 tr\u00ecnh thao t\u00e1c.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u1eaft kim lo\u1ea1i: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, nguy\u00ean l\u00fd truy\u1ec1n nhi\u1ec7t v\u00e0 \u1ee9ng d\u1ee5ng trong k\u1ef9 thu\u1eadt.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>L\u00e0m th\u1ebf n\u00e0o ng\u1ecdn gi\u00e1o nhi\u1ec7t c\u1eaft xuy\u00ean qua kim lo\u1ea1i<\/title>\n<meta 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