{"id":645,"date":"2026-09-05T01:55:26","date_gmt":"2026-09-04T17:55:26","guid":{"rendered":"https:\/\/anchor-microporous.com\/calculate-microporous-insulation-thickness-steel-ladles\/"},"modified":"2026-10-04T19:47:15","modified_gmt":"2026-10-04T11:47:15","slug":"tinh-toan-do-day-cach-nhiet-vi-xop-cho-thung-rot-thep","status":"publish","type":"post","link":"https:\/\/anchor-microporous.com\/vi\/calculate-microporous-insulation-thickness-steel-ladles\/","title":{"rendered":"C\u00e1ch T\u00ednh \u0110\u1ed9 D\u00e0y V\u1eadt Li\u1ec7u C\u00e1ch Nhi\u1ec7t Vi X\u1ed1p Cho G\u00e1o Th\u00e9p"},"content":{"rendered":"<p class=\"wp-block-paragraph\">T\u1ed5n th\u1ea5t nhi\u1ec7t t\u1eeb g\u00e1o th\u00e9p l\u00e0 m\u1ed9t trong nh\u1eefng d\u00f2ng n\u0103ng l\u01b0\u1ee3ng \u0111\u01a1n l\u1ebb l\u1edbn nh\u1ea5t trong nh\u00e0 m\u00e1y th\u00e9p \u2014 m\u1ed7i t\u1ea5n th\u00e9p ngu\u1ed9i t\u1eeb nhi\u1ec7t \u0111\u1ed9 r\u00f3t xu\u1ed1ng nhi\u1ec7t \u0111\u1ed9 \u0111\u00fac \u0111\u1ec1u th\u1ea3i nhi\u1ec7t qua v\u1ecf g\u00e1o, n\u1eafp g\u00e1o v\u00e0 \u0111\u00e1y g\u00e1o. C\u00e1ch nhi\u1ec7t g\u00e1o b\u1eb1ng l\u1edbp l\u00f3t vi x\u1ed1p l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ec7n ph\u00e1p ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 nh\u1ea5t v\u1ec1 chi ph\u00ed m\u00e0 nh\u00e0 m\u00e1y th\u00e9p c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng. C\u00e2u h\u1ecfi k\u1ef9 thu\u1eadt l\u00e0: l\u1edbp vi x\u1ed1p c\u1ea7n d\u00e0y bao nhi\u00eau? B\u00e0i vi\u1ebft n\u00e0y h\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh to\u00e1n.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u01b0\u01a1ng tr\u00ecnh t\u1ed5n th\u1ea5t nhi\u1ec7t<\/h2>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">D\u1eabn nhi\u1ec7t \u1ed5n \u0111\u1ecbnh qua t\u01b0\u1eddng ph\u1eb3ng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1eb1ng \u0111\u1ecbnh lu\u1eadt Fourier: <strong>Q = k \u00b7 A \u00b7 \u0394T \/ x<\/strong>, trong \u0111\u00f3 Q l\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n nhi\u1ec7t (W), k l\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t (W\/(m\u00b7K)), A l\u00e0 di\u1ec7n t\u00edch (m\u00b2), \u0394T l\u00e0 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 qua t\u01b0\u1eddng (K), v\u00e0 x l\u00e0 chi\u1ec1u d\u00e0y t\u01b0\u1eddng (m). S\u1eafp x\u1ebfp l\u1ea1i \u0111\u1ec3 t\u00ednh chi\u1ec1u d\u00e0y: <strong>x = k \u00b7 A \u00b7 \u0394T \/ Q<\/strong>. \u0110\u1ed1i v\u1edbi t\u01b0\u1eddng h\u00ecnh tr\u1ee5 (v\u1ecf g\u00e1o), c\u00e1ch ti\u1ebfp c\u1eadn t\u01b0\u01a1ng t\u1ef1 s\u1eed d\u1ee5ng b\u00e1n k\u00ednh trung b\u00ecnh logarit nh\u01b0ng k\u1ebft qu\u1ea3 sai kh\u00e1c trong kho\u1ea3ng 5 % so v\u1edbi ph\u01b0\u01a1ng tr\u00ecnh t\u01b0\u1eddng ph\u1eb3ng khi b\u00e1n k\u00ednh l\u1edbn so v\u1edbi chi\u1ec1u d\u00e0y \u2014 \u0111i\u1ec1u n\u00e0y lu\u00f4n \u0111\u00fang v\u1edbi g\u00e1o 100 t\u1ea5n.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f3 kh\u0103n l\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t <em>k<\/em> kh\u00f4ng ph\u1ea3i h\u1eb1ng s\u1ed1 \u2014 n\u00f3 t\u0103ng theo nhi\u1ec7t \u0111\u1ed9. Th\u1ef1c t\u1ebf c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb trung b\u00ecnh t\u00edch ph\u00e2n <em>k\u0304<\/em> \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 gi\u1eefa nhi\u1ec7t \u0111\u1ed9 m\u1eb7t l\u1ea1nh v\u00e0 m\u1eb7t n\u00f3ng: <strong>k\u0304 = (1 \/ (T<sub>h<\/sub> \u2212 T<sub>c<\/sub>)) \u00b7 \u222b<sub>T<sub>c<\/sub><\/sub><sup>T<sub>h<\/sub><\/sup> k(T) dT<\/strong>. \u0110\u1ed1i v\u1edbi t\u1ea5m vi x\u1ed1p ti\u00eau chu\u1ea9n c\u1ee7a ch\u00fang t\u00f4i, k\u0304 \u2248 0,027 W\/(m\u00b7K) trong kho\u1ea3ng t\u1eeb 25 \u00b0C \u0111\u1ebfn 1000 \u00b0C, so v\u1edbi kho\u1ea3ng 0,090 W\/(m\u00b7K) \u0111\u1ed1i v\u1edbi b\u00f4ng g\u1ed1m s\u1ee3i \u1edf c\u00f9ng nhi\u1ec7t \u0111\u1ed9. T\u1ea5m n\u00e0y gi\u1ea3m \u0111\u1ed9 d\u00e0y c\u1ea7n thi\u1ebft xu\u1ed1ng kho\u1ea3ng 3 l\u1ea7n \u0111\u1ec3 \u0111\u1ea1t c\u00f9ng kh\u1ea3 n\u0103ng ng\u0103n nhi\u1ec7t.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ed d\u1ee5 t\u00ednh to\u00e1n: Th\u00f9ng r\u00f3t 30 t\u1ea5n<\/h2>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e9t m\u1ed9t th\u00f9ng r\u00f3t 30 t\u1ea5n c\u00f3 \u0111\u01b0\u1eddng k\u00ednh trong 1,8 m, chi\u1ec1u cao kim lo\u1ea1i 2,6 m, l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c (g\u1ea1ch MgO-C) d\u00e0y 150 mm, l\u1edbp l\u00f3t vi x\u1ed1p ph\u1ee5 tr\u1ee3 <em>x<\/em> (c\u1ea7n x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc), v\u1ecf th\u00e9p nh\u1eb9 d\u00e0y 25 mm. Nhi\u1ec7t \u0111\u1ed9 m\u1eb7t n\u00f3ng m\u1ee5c ti\u00eau \u1edf ph\u00eda l\u1ea1nh c\u1ee7a l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c: 1 050 \u00b0C (\u0111i\u1ec3n h\u00ecnh cho l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c c\u1ee7a th\u00f9ng r\u00f3t trong qu\u00e1 tr\u00ecnh chuy\u1ec3n). Nhi\u1ec7t \u0111\u1ed9 b\u00ean ngo\u00e0i v\u1ecf m\u1ee5c ti\u00eau: \u2264 250 \u00b0C (gi\u1edbi h\u1ea1n an to\u00e0n cho c\u00f4ng nh\u00e2n \u0111i\u1ec3n h\u00ecnh). Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng: 25 \u00b0C.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5ng di\u1ec7n t\u00edch v\u1ecf th\u00e9p: A = \u03c0 \u00b7 D \u00b7 H \u2248 \u03c0 \u00b7 1,85 \u00b7 2,6 \u2248 15,1 m\u00b2 (chu vi); c\u1ed9ng v\u1edbi \u0111\u1ec9nh v\u00e0 \u0111\u00e1y ~ 6,5 m\u00b2; t\u1ed5ng \u2248 21,6 m\u00b2. Ch\u00fang ta s\u1ebd x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc th\u00e0nh b\u00ean tr\u01b0\u1edbc; theo quy \u01b0\u1edbc, \u0111\u00e1y s\u1eed d\u1ee5ng 1,5 l\u1ea7n \u0111\u1ed9 d\u00e0y th\u00e0nh v\u00e0 n\u1eafp s\u1eed d\u1ee5ng 2 l\u1ea7n \u0111\u1ed9 d\u00e0y th\u00e0nh.<\/p>\n\n\n\n\n\n<ul class=\"wp-block-list\"><li><strong>M\u1ee5c ti\u00eau d\u00f2ng nhi\u1ec7t qua t\u01b0\u1eddng<\/strong> \u2014 Q\/A \u2264 200 W\/m\u00b2 (t\u1ea1o ra \u0111\u1ed9 t\u0103ng nhi\u1ec7t \u0111\u1ed9 v\u1ecf t\u01b0\u01a1ng th\u00edch v\u1edbi 250 \u00b0C b\u00ean ngo\u00e0i \u1edf m\u00f4i tr\u01b0\u1eddng 25 \u00b0C)<\/li><li><strong>Ch\u00eanh l\u1ec7ch \u0394T hi\u1ec7u d\u1ee5ng qua l\u1edbp vi x\u1ed1p<\/strong> \u2014 gi\u1ea3 \u0111\u1ecbnh l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c 150 mm MgO-C c\u00f3 \u0111i\u1ec7n tr\u1edf nhi\u1ec7t chi\u1ebfm \u01b0u th\u1ebf, \u0111\u1ed9 gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 qua l\u1edbp vi x\u1ed1p x\u1ea5p x\u1ec9 1 050 \u2212 600 = 450 \u00b0C (t\u00f9y thu\u1ed9c v\u00e0o hi\u1ec7u su\u1ea5t l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c)<\/li><li><strong>Chi\u1ec1u d\u00e0y vi x\u1ed1p y\u00eau c\u1ea7u<\/strong> \u2014 x = 0,027 \u00b7 1 \/ (200 \/ 450) = 0,027 \u00b7 450 \/ 200 \u2248 0,061 m \u2248 60 mm. L\u00e0m tr\u00f2n l\u00ean theo ti\u00eau chu\u1ea9n 25 mm \u00d7 3 l\u1edbp ho\u1eb7c 30 mm \u00d7 2 l\u1edbp.<\/li><\/ul>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">\u01af\u1edbc t\u00ednh k\u1ef9 thu\u1eadt: l\u1edbp l\u00f3t vi x\u1ed1p d\u00e0y 60 mm trong hai t\u1ea5m 30 mm \u0111\u01b0a t\u01b0\u1eddng th\u00f9ng r\u00f3t 30 t\u1ea5n v\u00e0o \u0111\u00fang th\u00f4ng s\u1ed1 nhi\u1ec7t \u0111\u1ed9 v\u1ecf. X\u00e1c nh\u1eadn b\u1eb1ng kh\u1ea3o s\u00e1t nhi\u1ec7t tr\u00ean m\u1ed9t th\u00f9ng r\u00f3t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111ang v\u1eadn h\u00e0nh.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec1u ch\u1ec9nh t\u00ednh to\u00e1n<\/h2>\n\n\n\n\n\n<h3 class=\"wp-block-heading\">N\u1ebfu m\u1ee5c ti\u00eau nhi\u1ec7t \u0111\u1ed9 v\u1ecf th\u1ea5p h\u01a1n<\/h3>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3m m\u1ed9t n\u1eeda t\u1ed5n th\u1ea5t nhi\u1ec7t cho ph\u00e9p t\u1eeb 200 xu\u1ed1ng 100 W\/m\u00b2 l\u00e0m t\u0103ng g\u1ea5p \u0111\u00f4i chi\u1ec1u d\u00e0y y\u00eau c\u1ea7u l\u00ean ~120 mm. Ng\u01b0\u1ee3c l\u1ea1i, t\u0103ng g\u1ea5p \u0111\u00f4i l\u00ean 400 W\/m\u00b2 l\u00e0m gi\u1ea3m m\u1ed9t n\u1eeda chi\u1ec1u d\u00e0y y\u00eau c\u1ea7u xu\u1ed1ng ~30 mm. H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 m\u00e1y th\u00e9p \u0111\u1ec1u nh\u1eafm \u0111\u1ebfn m\u1ee9c gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 v\u1ecf m\u1ea1nh nh\u1ea5t m\u00e0 ng\u00e2n s\u00e1ch cho ph\u00e9p.<\/p>\n\n\n\n\n\n<h3 class=\"wp-block-heading\">N\u1ebfu t\u1ea5m vi x\u1ed1p \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng ch\u0103n s\u1ee3i g\u1ed1m<\/h3>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng k\u0304 \u2248 0,090 W\/(m\u00b7K) cho ch\u0103n s\u1ee3i g\u1ed1m \u1edf c\u00f9ng nhi\u1ec7t \u0111\u1ed9: \u0111\u1ed9 d\u00e0y y\u00eau c\u1ea7u \u2248 0,090 \u00b7 450 \/ 200 \u2248 0,20 m, t\u1ee9c 200 mm. Ch\u0103n s\u1ee3i g\u1ed1m \u1edf 200 mm d\u00e0y g\u1ea5p kho\u1ea3ng 3 l\u1ea7n t\u1ea5m vi x\u1ed1p \u1edf 60 mm \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 c\u00e1ch nhi\u1ec7t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u2014 l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc th\u00f9ng r\u00f3t cho c\u00f9ng dung t\u00edch th\u00e9p.<\/p>\n\n\n\n\n\n<h3 class=\"wp-block-heading\">N\u1ebfu th\u00eam l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t (m\u00e0ng PE ho\u1eb7c l\u00e1 nh\u00f4m)<\/h3>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c l\u1edbp ph\u1ee7 tr\u00ean t\u1ea5m vi x\u1ed1p nhi\u1ec1u l\u1edbp kh\u00f4ng \u0111\u00f3ng g\u00f3p \u0111\u00e1ng k\u1ec3 v\u00e0o kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t (m\u00e0ng PE 50 \u00b5m ho\u1eb7c l\u00e1 nh\u00f4m 0,05 mm c\u00f3 k\u0304 \u00b7 A \/ x kh\u00f4ng \u0111\u00e1ng k\u1ec3). L\u1edbp ph\u1ee7 t\u1ed3n t\u1ea1i \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m, h\u01a1i n\u01b0\u1edbc v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n b\u1ec1 m\u1eb7t ngo\u00e0i \u2014 kh\u00f4ng ph\u1ea3i \u0111\u1ec3 t\u0103ng gi\u00e1 tr\u1ecb c\u00e1ch nhi\u1ec7t. Xem trang <a href=\"\/vi\/tam-nhom-la-sieu-vi-xop-nano\/\">L\u00e1 Nh\u00f4m Ph\u1ee7 B\u1ec1 M\u1eb7t<\/a> c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 bi\u1ebft c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh khi c\u1ea7n ch\u1ec9 \u0111\u1ecbnh l\u1edbp ph\u1ee7.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Dung Sai S\u1ea3n Xu\u1ea5t v\u00e0 Th\u1ef1c T\u1ebf Hi\u1ec7n Tr\u01b0\u1eddng<\/h2>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea5m vi x\u1ed1p ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c cung c\u1ea5p v\u1edbi dung sai k\u00edch th\u01b0\u1edbc \u00b12 mm v\u1ec1 chi\u1ec1u d\u00e0i v\u00e0 \u00b11 mm v\u1ec1 \u0111\u1ed9 d\u00e0y. Vi\u1ec7c x\u1ebfp so le c\u00e1c m\u1ed1i n\u1ed1i ch\u1ed3ng qua nhi\u1ec1u l\u1edbp l\u00e0 r\u1ea5t quan tr\u1ecdng \u2014 m\u1ed9t m\u1ed1i n\u1ed1i li\u00ean t\u1ee5c s\u1ebd d\u1eabn nhi\u1ec7t xuy\u00ean th\u1eb3ng qua. Ch\u00fang t\u00f4i cung c\u1ea5p t\u1ea5m v\u1edbi dung sai cho ph\u00e9p l\u1eafp gh\u00e9p \u0111\u1ed1i \u0111\u1ea7u m\u00e0 kh\u00f4ng c\u1ea7n ch\u00eam trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p. \u0110\u1ed1i v\u1edbi h\u00ecnh d\u1ea1ng th\u00f9ng r\u00f3t c\u1ea7n b\u1ec1 m\u1eb7t cong, d\u00f2ng s\u1ea3n ph\u1ea9m <a href=\"\/vi\/tam-vi-xop-nano-ho-quang\/\">V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t vi x\u1ed1p nano h\u00ecnh v\u00f2m cung<\/a> c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c c\u1eaft s\u1eb5n cho c\u00e1c \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng th\u00f4ng d\u1ee5ng v\u00e0 lo\u1ea1i b\u1ecf l\u00e3ng ph\u00ed khi c\u1eaft t\u1ea1i c\u00f4ng tr\u01b0\u1eddng.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi \u1ee9ng d\u1ee5ng \u0111\u1eb7c th\u00f9 trong nh\u00e0 m\u00e1y th\u00e9p, xem <a href=\"\/vi\/vat-lieu-cach-nhiet-vi-xop-nano-cho-gao-thep\/\">V\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t vi x\u1ed1p nano cho th\u00f9ng r\u00f3t th\u00e9p<\/a> C\u1ea5p \u0111\u1ed9 \u2014 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c 12\u201324 th\u00e1ng chu k\u1ef3 nhi\u1ec7t gi\u1eefa c\u00e1c l\u1ea7n quay v\u00f2ng th\u00f9ng r\u00f3t v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng trong d\u1ecbch v\u1ee5 c\u1ea5p 150 t\u1ea5n.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh t\u00ednh to\u00e1n th\u1ef1c t\u1ebf<\/h2>\n\n\n\n\n\n<ul class=\"wp-block-list\"><li>X\u00e1c \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t ngo\u00e0i v\u1ecf th\u00f9ng m\u1ee5c ti\u00eau (th\u01b0\u1eddng l\u00e0 200\u2013300 \u00b0C \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho c\u00f4ng nh\u00e2n)<\/li><li>\u01af\u1edbc t\u00ednh nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t n\u00f3ng \u1edf ph\u00eda l\u1ea1nh c\u1ee7a l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c (1100 \u00b0C \u0111\u1ed1i v\u1edbi MgO-C)<\/li><li>Ch\u1ecdn m\u1eadt \u0111\u1ed9 d\u00f2ng nhi\u1ec7t m\u1ee5c ti\u00eau Q\/A d\u1ef1a tr\u00ean tr\u01b0\u1eddng h\u1ee3p chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng (\u0111i\u1ec3n h\u00ecnh: 150\u2013250 W\/m\u00b2)<\/li><li>T\u00ednh \u0111\u1ed9 d\u00e0y c\u1ea7n thi\u1ebft t\u1eeb \u0111\u1ecbnh lu\u1eadt Fourier s\u1eed d\u1ee5ng k\u0304 \u2248 0,027 W\/(m\u00b7K) cho t\u1ea5m vi x\u1ed1p c\u1ee7a ch\u00fang t\u00f4i trong kho\u1ea3ng t\u1eeb 25 \u00b0C \u0111\u1ebfn 1000 \u00b0C<\/li><li>L\u00e0m tr\u00f2n l\u00ean \u0111\u1ebfn \u0111\u1ed9 d\u00e0y ti\u00eau chu\u1ea9n c\u00f3 s\u1eb5n ti\u1ebfp theo (25 mm, 30 mm, 40 mm, 50 mm)<\/li><li>So le c\u00e1c m\u1ed1i n\u1ed1i gi\u1eefa c\u00e1c l\u1edbp v\u00e0 l\u1ea5p \u0111\u1ea7y c\u00e1c khe gi\u00e3n n\u1edf b\u1eb1ng v\u1eadt li\u1ec7u \u0111\u1ed9n d\u1ea1ng b\u1ed9t c\u1ee7a ch\u00fang t\u00f4i<\/li><li>Kh\u1ea3o s\u00e1t m\u1ed9t th\u00f9ng r\u00f3t \u0111ang v\u1eadn h\u00e0nh \u0111\u1ec3 x\u00e1c minh nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t n\u00f3ng v\u00e0 l\u1ea1nh \u0111\u00e3 t\u00ednh to\u00e1n<\/li><\/ul>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Trao \u0111\u1ed5i v\u1edbi k\u1ef9 s\u01b0 c\u00e1ch nhi\u1ec7t c\u1ee7a nh\u00e0 m\u00e1y th\u00e9p<\/h2>\n\n\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/vi\/lien-he\/\" class=\"wp-block-button__link\" style=\"display:inline-block;background:#1C6996;color:#fff;padding:12px 28px;border-radius:4px;text-decoration:none;font-weight:600\">Y\u00eau c\u1ea7u B\u00e1o gi\u00e1 \u2014 T\u00ednh To\u00e1n K\u00edch Th\u01b0\u1edbc L\u1edbp C\u00e1ch Nhi\u1ec7t D\u1ef1 Ph\u00f2ng Vi X\u1ed1p cho G\u00e1o Th\u00e9p<\/a><\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">V\u00ec Sao G\u00e1o Th\u00e9p Quan Tr\u1ecdng \u0110\u1ed1i V\u1edbi Kinh T\u1ebf Nh\u00e0 M\u00e1y Th\u00e9p<\/h2>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">G\u00e1o th\u00e9p chi\u1ebfm m\u1ed9t ph\u1ea7n kh\u00f4ng nh\u1ecf trong c\u00e2n b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng c\u1ee7a nh\u00e0 m\u00e1y th\u00e9p. Nhi\u1ec7t \u0111\u1ed9 x\u1ec9 trong g\u00e1o gi\u1ea3m trong qu\u00e1 tr\u00ecnh chuy\u1ec3n t\u1eeb l\u00f2 tinh luy\u1ec7n \u0111\u1ebfn m\u00e1y \u0111\u00fac li\u00ean t\u1ee5c khi\u1ebfn nh\u00e0 m\u00e1y thi\u1ec7t h\u1ea1i kho\u1ea3ng 1,5\u20133,5 USD m\u1ed7i t\u1ea5n th\u00e9p do m\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m tu\u1ed5i th\u1ecd v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda. L\u1edbp c\u00e1ch nhi\u1ec7t d\u1ef1 ph\u00f2ng vi x\u1ed1p thu h\u1ed3i m\u1ed9t ph\u1ea7n t\u1ed5n th\u1ea5t n\u00e0y \u2014 c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng cho th\u1ea5y gi\u1ea3m 30\u201350 % t\u1ed5n th\u1ea5t nhi\u1ec7t v\u1edbi t\u1ea5m vi x\u1ed1p d\u00e0y 60 mm ph\u00eda sau l\u1edbp l\u00f3t l\u00e0m vi\u1ec7c. \u0110\u1ed1i v\u1edbi m\u1ed9t ph\u00e2n x\u01b0\u1edfng th\u00e9p s\u1ea3n xu\u1ea5t 200.000 t\u1ea5n m\u1ed7i n\u0103m, \u0111i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 90.000\u2013350.000 USD m\u1ed7i n\u0103m nh\u1edd thu h\u1ed3i n\u0103ng l\u01b0\u1ee3ng v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda.<\/p>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eddi gian ho\u00e0n v\u1ed1n cho vi\u1ec7c l\u1eafp \u0111\u1eb7t l\u1edbp c\u00e1ch nhi\u1ec7t d\u1ef1 ph\u00f2ng vi x\u1ed1p trong g\u00e1o th\u00e9p th\u01b0\u1eddng l\u00e0 4\u20139 th\u00e1ng \u1edf m\u1ee9c gi\u00e1 n\u0103ng l\u01b0\u1ee3ng c\u00f4ng nghi\u1ec7p. Bi\u1ebfn s\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ea7u t\u01b0 ph\u1ea7n l\u1edbn kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00f4ng su\u1ea5t \u2014 ngay c\u1ea3 m\u1ed9t nh\u00e0 m\u00e1y nh\u1ecf v\u1eadn h\u00e0nh 50.000 t\u1ea5n\/n\u0103m c\u0169ng s\u1ebd ho\u00e0n v\u1ed1n trong v\u00f2ng ch\u01b0a \u0111\u1ea7y 18 th\u00e1ng. L\u1edbp c\u00e1ch nhi\u1ec7t d\u1ef1 ph\u00f2ng cho g\u00e1o l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ec7n ph\u00e1p ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng c\u00f3 ROI cao nh\u1ea5t m\u00e0 m\u1ed9t nh\u00e0 m\u00e1y th\u00e9p c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng, ngang h\u00e0ng v\u1edbi thu h\u1ed3i nhi\u1ec7t th\u1ea3i v\u00e0 l\u00e0m n\u00f3ng tr\u01b0\u1edbc kh\u00ed \u0111\u1ed1t.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Ti\u00eau Chu\u1ea9n, Ph\u01b0\u01a1ng Ph\u00e1p Th\u1eed Nghi\u1ec7m v\u00e0 X\u00e1c Minh Th\u00f4ng S\u1ed1 K\u1ef9 Thu\u1eadt<\/h2>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea5m vi x\u1ed1p c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c cung c\u1ea5p theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n ng\u00e0nh: \u0111\u1ed9 d\u1eabn nhi\u1ec7t theo ASTM C518 (thi\u1ebft b\u1ecb \u0111o l\u01b0u l\u01b0\u1ee3ng nhi\u1ec7t) ho\u1eb7c ISO 8301 (thi\u1ebft b\u1ecb t\u1ea5m n\u00f3ng c\u00f3 b\u1ea3o v\u1ec7); c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n theo ASTM C165; kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang theo ASTM C134. B\u00e1o c\u00e1o th\u1eed nghi\u1ec7m nh\u00e0 m\u00e1y \u0111i k\u00e8m m\u1ed7i l\u00f4 h\u00e0ng bao g\u1ed3m x\u00e1c minh \u0111\u1ed9 d\u1eabn nhi\u1ec7t \u1edf 200 \u00b0C, 400 \u00b0C, 600 \u00b0C v\u00e0 800 \u00b0C \u0111\u1ec3 h\u1ed7 tr\u1ee3 h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt. \u0110\u1ed1i v\u1edbi c\u00e1c cu\u1ed9c ki\u1ec3m to\u00e1n nh\u00e0 m\u00e1y Trung Qu\u1ed1c, s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c cung c\u1ea5p theo th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt YB\/T 4130-2005; \u0111\u1ed1i v\u1edbi c\u00e1c cu\u1ed9c ki\u1ec3m to\u00e1n ch\u00e2u \u00c2u, t\u00e0i li\u1ec7u ph\u00e2n lo\u1ea1i ch\u1ed1ng ch\u00e1y EN 13501-1 A1 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef. Ch\u1ee9ng nh\u1eadn qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng ISO 9001:2015, t\u00e0i li\u1ec7u tu\u00e2n th\u1ee7 REACH v\u00e0 RoHS, c\u00f9ng tuy\u00ean b\u1ed1 kh\u00f4ng ch\u1ee9a ami\u0103ng \u0111\u01b0\u1ee3c \u0111\u00ednh k\u00e8m v\u1edbi m\u1ed7i l\u00f4 h\u00e0ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ednh to\u00e1n t\u1eebng b\u01b0\u1edbc k\u00edch th\u01b0\u1edbc l\u1edbp c\u00e1ch nhi\u1ec7t d\u1ef1 ph\u00f2ng vi x\u1ed1p cho th\u00f9ng th\u00e9p: \u0111\u1ed9 d\u1eabn nhi\u1ec7t trung b\u00ecnh t\u00edch ph\u00e2n v\u00e0 v\u00ed d\u1ee5 t\u00ednh to\u00e1n cho th\u00f9ng 30 t\u1ea5n.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-645","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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