{"id":699579,"date":"2024-09-17T15:45:04","date_gmt":"2024-09-17T14:45:04","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=699579"},"modified":"2024-09-17T15:45:04","modified_gmt":"2024-09-17T14:45:04","slug":"chuyen-doi-nhiet-trong-san-xuat-boi-dap","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/chuyen-doi-nhiet-trong-san-xuat-boi-dap\/","title":{"rendered":"Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp"},"content":{"rendered":"<p class=\"sidekick\">Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp gi\u00fap t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng, c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t trong c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/chuyen_doi_nhiet_trong_san_xuat_boi_dap.png\" alt=\"Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp<\/h2>\n<p>S\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 in 3D, l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng, mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp l\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t. Hi\u1ec3u v\u1ec1 chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n<h2>Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t l\u00e0 g\u00ec?<\/h2>\n<p>Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t l\u00e0 qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t n\u0103ng gi\u1eefa c\u00e1c v\u1eadt th\u1ec3 ho\u1eb7c m\u00f4i tr\u01b0\u1eddng. Trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, v\u1eadt li\u1ec7u (th\u01b0\u1eddng l\u00e0 nh\u1ef1a ho\u1eb7c kim lo\u1ea1i) \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng ch\u1ea3y v\u00e0 sau \u0111\u00f3 l\u00e0m l\u1ea1nh \u0111\u1ec3 t\u1ea1o ra c\u00e1c l\u1edbp v\u1eadt li\u1ec7u c\u1ee9ng. Hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch nhi\u1ec7t n\u0103ng truy\u1ec1n \u0111i trong qu\u00e1 tr\u00ecnh n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00e1c tham s\u1ed1 s\u1ea3n xu\u1ea5t.<\/p>\n<h2>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t<\/h2>\n<p><u1><\/p>\n<li><b>D\u1eabn nhi\u1ec7t:<\/b> L\u00e0 qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t th\u00f4ng qua v\u1eadt li\u1ec7u. Trong in 3D, d\u1eabn nhi\u1ec7t x\u1ea3y ra khi nhi\u1ec7t truy\u1ec1n t\u1eeb dung d\u1ecbch nh\u1ef1a n\u00f3ng ch\u1ea3y sang l\u1edbp d\u01b0\u1edbi c\u00f9ng ho\u1eb7c b\u1ec1 m\u1eb7t c\u1ee7a n\u1ec1n \u0111\u1ee1.<\/li>\n<li><b>\u0110\u1ed1i l\u01b0u:<\/b> L\u00e0 qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t gi\u1eefa m\u1ed9t b\u1ec1 m\u1eb7t v\u00e0 ch\u1ea5t l\u1ecfng ho\u1eb7c kh\u00ed ti\u1ebfp x\u00fac v\u1edbi n\u00f3. \u0110\u1ed1i l\u01b0u t\u1ef1 nhi\u00ean v\u00e0 c\u01b0\u1ee1ng b\u1ee9c c\u00f3 th\u1ec3 x\u1ea3y ra trong bu\u1ed3ng in 3D \u0111\u1ec3 l\u00e0m m\u00e1t c\u1ea5u tr\u00fac.<\/li>\n<li><b>B\u1ee9c x\u1ea1 nhi\u1ec7t:<\/b> L\u00e0 qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t th\u00f4ng qua b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb. Trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, b\u1ee9c x\u1ea1 nhi\u1ec7t c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh gia nhi\u1ec7t c\u1ee7a bu\u1ed3ng in.<\/li>\n<p><\/u1><\/p>\n<h2>T\u1ea1i sao chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp?<\/h2>\n<p>Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, s\u1ef1 ki\u1ec3m so\u00e1t chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng nh\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 l\u00fd do c\u1ee5 th\u1ec3:<\/p>\n<p><u1><\/p>\n<li><b>Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9:<\/b> Duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1eadt li\u1ec7u in \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u00e0 \u0111\u00f4ng c\u1ee9ng \u0111\u00fang c\u00e1ch.<\/li>\n<li><b>Ng\u0103n ng\u1eeba co r\u00fat v\u00e0 bi\u1ebfn d\u1ea1ng:<\/b> Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 co r\u00fat ho\u1eb7c bi\u1ebfn d\u1ea1ng, l\u00e0m h\u1ecfng s\u1ea3n ph\u1ea9m.<\/li>\n<li><b>C\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc:<\/b> Ki\u1ec3m so\u00e1t t\u1ed1t chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a s\u1ea3n ph\u1ea9m in 3D, l\u00e0m cho ch\u00fang b\u1ec1n h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/li>\n<p><\/u1><\/p>\n<h2>T\u00ednh to\u00e1n chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t<\/h2>\n<p>\u0110\u1ec3 ki\u1ec3m so\u00e1t chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc c\u01a1 b\u1ea3n. M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng tr\u00ecnh ph\u1ed5 bi\u1ebfn l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh truy\u1ec1n nhi\u1ec7t c\u1ee7a Fourier:<\/p>\n<p>\\( q = -k \\frac{\\partial T}{\\partial x} \\)<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<p><o1><\/p>\n<li>q: D\u00f2ng nhi\u1ec7t (W\/m<sup>2<\/sup>)<\/li>\n<li>k: H\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u (W\/mK)<\/li>\n<li>\\(\\frac{\\partial T}{\\partial x}\\): Gradient nhi\u1ec7t \u0111\u1ed9 (K\/m)<\/li>\n<p><\/o1><\/p>\n<p>Ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y cho ph\u00e9p d\u1ef1 \u0111o\u00e1n lu\u1ed3ng nhi\u1ec7t s\u1ebd di chuy\u1ec3n t\u1eeb khu v\u1ef1c n\u00f3ng \u0111\u1ebfn khu v\u1ef1c l\u1ea1nh trong qu\u00e1 tr\u00ecnh in 3D.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>Hi\u1ec3u v\u00e0 ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ea3n ph\u1ea9m in 3D. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ki\u1ebfn th\u1ee9c v\u1ec1 d\u1eabn nhi\u1ec7t, \u0111\u1ed1i l\u01b0u v\u00e0 b\u1ee9c x\u1ea1 nhi\u1ec7t, ch\u00fang ta c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng ti\u1ebfn b\u1ed9 v\u01b0\u1ee3t b\u1eadc trong c\u00f4ng ngh\u1ec7 in 3D.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t trong s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp gi\u00fap t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng, c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t trong c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i.<\/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 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