{"id":4356,"date":"2024-02-25T08:14:44","date_gmt":"2024-02-25T08:14:44","guid":{"rendered":"http:\/\/biogroupvietnam-worldpress.local\/service\/applications-of-liquid-nitrogen-in-electronic-manufacturing-industry\/"},"modified":"2025-09-29T13:01:49","modified_gmt":"2025-09-29T06:01:49","slug":"ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat","status":"publish","type":"service","link":"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/","title":{"rendered":"\u1ee8ng D\u1ee5ng Nit\u01a1 L\u1ecfng Trong C\u00f4ng Nghi\u1ec7p \u0110i\u1ec7n T\u1eed &#038; S\u1ea3n Xu\u1ea5t"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/#Hien_nay_nito_long_duoc_ung_dung_trong_nhieu_nganh_cong_nghiep_khac_nhau\" >Hi\u1ec7n nay,&nbsp;nit\u01a1 l\u1ecfng&nbsp;\u0111\u01b0\u1ee3c&nbsp;\u1ee9ng d\u1ee5ng trong&nbsp;nhi\u1ec1u ng\u00e0nh&nbsp;c\u00f4ng nghi\u1ec7p&nbsp;kh\u00e1c nhau.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/#Nito_long_Khi_nito_o_trang_thai_long_Tro_khong_mau_khong_mui_khong_an_mon_khong_chay_nhiet_do_cuc_lanh_Nito_chiem_phan_lon_trong_khi_quyen_7803_theo_the_tich_va_755_theo_trong_luong_Nito_khong_hoat_dong_va_khong_ho_tro_qua_trinh_dot_chay_Te_cong_do_tiep_xuc_thu_nhiet_qua_muc_trong_qua_trinh_hoa_hoi\" >Nit\u01a1 l\u1ecfng: Kh\u00ed nit\u01a1 \u1edf tr\u1ea1ng th\u00e1i l\u1ecfng. Tr\u01a1, kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i, kh\u00f4ng \u0103n m\u00f2n, kh\u00f4ng ch\u00e1y, nhi\u1ec7t \u0111\u1ed9 c\u1ef1c l\u1ea1nh. Nit\u01a1 chi\u1ebfm ph\u1ea7n l\u1edbn trong kh\u00ed quy\u1ec3n (78,03% theo th\u1ec3 t\u00edch v\u00e0 75,5% theo tr\u1ecdng l\u01b0\u1ee3ng). Nit\u01a1 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 kh\u00f4ng h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y. T\u00ea c\u00f3ng do ti\u1ebfp x\u00fac thu nhi\u1ec7t qu\u00e1 m\u1ee9c trong qu\u00e1 tr\u00ecnh h\u00f3a h\u01a1i.<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/#Che_tao_chat_sieu_dan_bang_cong_nghe_sieu_lanh\" >Ch\u1ebf t\u1ea1o ch\u1ea5t si\u00eau d\u1eabn b\u1eb1ng c\u00f4ng ngh\u1ec7 si\u00eau l\u1ea1nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/#San_xuat_va_thu_nghiem_linh_kien_dien_tu\" >S\u1ea3n xu\u1ea5t v\u00e0 th\u1eed nghi\u1ec7m linh ki\u1ec7n \u0111i\u1ec7n t\u1eed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/#Ky_thuat_nghien_bi_dong_lanh\" >K\u1ef9 thu\u1eadt nghi\u1ec1n bi \u0111\u00f4ng l\u1ea1nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/biogroupvietnam.com\/vi\/dich-vu\/ung-dung-nito-long-trong-cong-nghiep-dien-tu-san-xuat\/#Ky_thuat_gia_cong_xanh\" >K\u1ef9 thu\u1eadt gia c\u00f4ng xanh<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Hien_nay_nito_long_duoc_ung_dung_trong_nhieu_nganh_cong_nghiep_khac_nhau\"><\/span>Hi\u1ec7n nay,&nbsp;nit\u01a1 l\u1ecfng&nbsp;\u0111\u01b0\u1ee3c&nbsp;\u1ee9ng d\u1ee5ng trong&nbsp;nhi\u1ec1u ng\u00e0nh&nbsp;c\u00f4ng nghi\u1ec7p&nbsp;kh\u00e1c nhau.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Nito_long_Khi_nito_o_trang_thai_long_Tro_khong_mau_khong_mui_khong_an_mon_khong_chay_nhiet_do_cuc_lanh_Nito_chiem_phan_lon_trong_khi_quyen_7803_theo_the_tich_va_755_theo_trong_luong_Nito_khong_hoat_dong_va_khong_ho_tro_qua_trinh_dot_chay_Te_cong_do_tiep_xuc_thu_nhiet_qua_muc_trong_qua_trinh_hoa_hoi\"><\/span>Nit\u01a1 l\u1ecfng: Kh\u00ed nit\u01a1 \u1edf tr\u1ea1ng th\u00e1i l\u1ecfng. Tr\u01a1, kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i, kh\u00f4ng \u0103n m\u00f2n, kh\u00f4ng ch\u00e1y, nhi\u1ec7t \u0111\u1ed9 c\u1ef1c l\u1ea1nh. Nit\u01a1 chi\u1ebfm ph\u1ea7n l\u1edbn trong kh\u00ed quy\u1ec3n (78,03% theo th\u1ec3 t\u00edch v\u00e0 75,5% theo tr\u1ecdng l\u01b0\u1ee3ng). Nit\u01a1 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 kh\u00f4ng h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y. T\u00ea c\u00f3ng do ti\u1ebfp x\u00fac thu nhi\u1ec7t qu\u00e1 m\u1ee9c trong qu\u00e1 tr\u00ecnh h\u00f3a h\u01a1i.<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nit\u01a1 l\u1ecfng l\u00e0 m\u1ed9t ngu\u1ed3n l\u1ea1nh thu\u1eadn ti\u1ec7n. Do nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3, nit\u01a1 l\u1ecfng ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi ch\u00fa \u00fd v\u00e0 c\u00f4ng nh\u1eadn. N\u00f3 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ch\u0103n nu\u00f4i, c\u00f4ng nghi\u1ec7p y t\u1ebf, c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m v\u00e0 c\u00e1c l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u \u0111\u00f4ng l\u1ea1nh. Trong \u0111i\u1ec7n t\u1eed, luy\u1ec7n kim, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, s\u1ea3n xu\u1ea5t m\u00e1y m\u00f3c v\u00e0 c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c c\u1ee7a \u1ee9ng d\u1ee5ng \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng v\u00e0 ph\u00e1t tri\u1ec3n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Che_tao_chat_sieu_dan_bang_cong_nghe_sieu_lanh\"><\/span><strong>Ch\u1ebf t\u1ea1o ch\u1ea5t si\u00eau d\u1eabn b\u1eb1ng c\u00f4ng ngh\u1ec7 si\u00eau l\u1ea1nh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ch\u1ea5t si\u00eau d\u1eabn c\u00f3 nhi\u1ec1u \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ed9c \u0111\u00e1o do v\u1eady th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c. Ch\u1ea5t si\u00eau d\u1eabn thu \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng nit\u01a1 l\u1ecfng thay cho heli l\u1ecfng l\u00e0m m\u00f4i ch\u1ea5t l\u00e0m l\u1ea1nh si\u00eau d\u1eabn, m\u1edf ra kh\u1ea3 n\u0103ng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i c\u00f4ng ngh\u1ec7 si\u00eau d\u1eabn v\u00e0 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t trong nh\u1eefng ph\u00e1t minh khoa h\u1ecdc v\u0129 \u0111\u1ea1i c\u1ee7a th\u1ebf k\u1ef7 20.<\/p>\n<p>K\u1ef9 thu\u1eadt \u0111\u1ec7m t\u1eeb tr\u01b0\u1eddng si\u00eau d\u1eabn \u1ee9ng d\u1ee5ng g\u1ed1m si\u00eau d\u1eabn YBCO, khi v\u1eadt li\u1ec7u si\u00eau d\u1eabn \u0111\u01b0\u1ee3c l\u00e0m l\u1ea1nh \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 nit\u01a1 l\u1ecfng (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi -196oC) s\u1ebd t\u1eeb tr\u1ea1ng th\u00e1i b\u00ecnh th\u01b0\u1eddng chuy\u1ec3n sang tr\u1ea1ng th\u00e1i si\u00eau d\u1eabn. T\u1eeb tr\u01b0\u1eddng do d\u00f2ng \u0111i\u1ec7n trong l\u1edbp th\u00e2n t\u00e0u t\u1ea1o ra, s\u1ebd t\u1ea1o ra l\u1ef1c \u0111\u1ed1i ngh\u1ecbch v\u1edbi t\u1eeb tr\u01b0\u1eddng c\u1ee7a \u0111\u01b0\u1eddng ray v\u00e0 n\u1ebfu l\u1ef1c \u0111\u1ed1i n\u00e0y c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 l\u1edbn h\u01a1n tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u0111o\u00e0n t\u00e0u th\u00ec toa t\u00e0u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean l\u01a1 l\u1eedng. \u0110\u1ed3ng th\u1eddi, m\u1ed9t ph\u1ea7n t\u1eeb tr\u01b0\u1eddng b\u1ecb gi\u1eef l\u1ea1i trong ch\u1ea5t si\u00eau d\u1eabn do hi\u1ec7u \u1ee9ng ghim t\u1eeb th\u00f4ng trong qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t. Ph\u1ea7n t\u1eeb tr\u01b0\u1eddng b\u1ecb gi\u1eef l\u1ea1i n\u00e0y ch\u1ecbu t\u00e1c \u0111\u1ed9ng b\u1edfi t\u1eeb tr\u01b0\u1eddng c\u1ee7a \u0111\u01b0\u1eddng ray, v\u00e0 do \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u1ea3 l\u1ef1c \u0111\u1ea9y v\u00e0 l\u1ef1c h\u00fat, toa t\u00e0u s\u1ebd lu\u00f4n \u0111\u01b0\u1ee3c gi\u1eef l\u01a1 l\u1eedng \u1ed5n \u0111\u1ecbnh ph\u00eda tr\u00ean \u0111\u01b0\u1eddng ray. Tr\u00e1i ng\u01b0\u1ee3c v\u1edbi c\u00e1c hi\u1ec7u \u1ee9ng th\u00f4ng th\u01b0\u1eddng l\u00e0 \u0111\u1ea9y c\u00f9ng d\u1ea5u v\u00e0 h\u00fat tr\u00e1i d\u1ea5u gi\u1eefa c\u00e1c c\u1ef1c t\u1eeb, t\u01b0\u01a1ng t\u00e1c gi\u1eefa ch\u1ea5t si\u00eau d\u1eabn v\u00e0 t\u1eeb tr\u01b0\u1eddng b\u00ean ngo\u00e0i l\u00e0 v\u1eeba \u0111\u1ea9y v\u1eeba h\u00fat nhau, do \u0111\u00f3 c\u1ea3 ch\u1ea5t si\u00eau d\u1eabn v\u00e0 nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u1ec1u c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i tr\u1ecdng l\u1ef1c c\u1ee7a ch\u00ednh ch\u00fang v\u00e0 n\u1ed5i l\u01a1 l\u1eedng ho\u1eb7c treo ng\u01b0\u1ee3c d\u01b0\u1edbi nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"San_xuat_va_thu_nghiem_linh_kien_dien_tu\"><\/span><strong>S\u1ea3n xu\u1ea5t v\u00e0 th\u1eed nghi\u1ec7m linh ki\u1ec7n \u0111i\u1ec7n t\u1eed<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u00e0ng l\u1ecdc \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng (Environmental stress screening) l\u00e0 quy tr\u00ecnh l\u1ef1a ch\u1ecdn c\u00e1c m\u00f4 h\u00ecnh th\u1eed nghi\u1ec7m li\u00ean quan \u0111\u1ebfn y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng, \u00e1p d\u1ee5ng m\u1ee9c \u0111\u1ed9 \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng ph\u00f9 h\u1ee3p cho t\u1eebng b\u1ed9 ph\u1eadn linh ki\u1ec7n ho\u1eb7c to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb nh\u1eb1m m\u1ee5c \u0111\u00edch t\u00ecm ra nguy\u00ean nh\u00e2n g\u00e2y n\u00ean l\u1ed7i quy tr\u00ecnh c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn linh ki\u1ec7n, \u0111\u00e2y l\u00e0 l\u00e0 c\u00e1c l\u1ed7i trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u1ec3 t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0a ra s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh ho\u1eb7c thay th\u1ebf. S\u00e0ng l\u1ecdc \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng (Ambient stress screening) r\u1ea5t h\u1eefu \u00edch \u0111\u1ec3 ki\u1ec3m tra c\u00e1c ng\u01b0\u1ee1ng ch\u1ea5p nh\u1eadn c\u1ee7a chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 v\u00e0 rung \u0111\u1ed9ng ng\u1eabu nhi\u00ean. Th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 l\u00e0 ki\u1ec3m tra ng\u01b0\u1ee1ng ch\u1ea5p nh\u1eadn c\u1ee7a t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 cao, \u1ee9ng su\u1ea5t nhi\u1ec7t l\u1edbn, do \u0111\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a c\u00e1c linh ki\u1ec7n kh\u00e1c nhau, do khuy\u1ebft t\u1eadt m\u1ed1i h\u00e0n, t\u00ednh kh\u00f4ng \u0111\u1ed1i x\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u, c\u00e1c khuy\u1ebft t\u1eadt trong qu\u00e1 tr\u00ecnh g\u00e2y ra b\u1edfi s\u1ef1 c\u1ed1 ti\u1ec1m \u1ea9n v\u00e0 l\u1ed7i t\u1ee9c th\u1eddi, ng\u01b0\u1ee1ng ch\u1ea5p nh\u1eadn t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 l\u00e0 5\u2103\/ph\u00fat. Nhi\u1ec7t \u0111\u1ed9 gi\u1edbi h\u1ea1n l\u00e0 -40\u2103, +60\u2103. S\u1ed1 chu k\u1ef3 l\u00e0 8. S\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c th\u00f4ng s\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u01b0 v\u1eady trong qu\u00e1 tr\u00ecnh m\u00f4 ph\u1ecfng h\u00e0n \u1ea3o, c\u00e1c b\u1ed9 ph\u1eadn c\u1eaft, l\u00e0m cho khuy\u1ebft \u0111i\u1ec3m c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn l\u1ed9 ra r\u00f5 r\u00e0ng h\u01a1n. \u0110\u1ed1i v\u1edbi c\u00e1c th\u1eed nghi\u1ec7m chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9 kh\u1ed1i l\u01b0\u1ee3ng, ch\u00fang ta c\u00f3 th\u1ec3 xem x\u00e9t vi\u1ec7c ch\u1ea5p nh\u1eadn c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra -box method. Trong m\u00f4i tr\u01b0\u1eddng n\u00e0y, s\u00e0ng l\u1ecdc n\u00ean \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo c\u1ea5p \u0111\u1ed9.<\/p>\n<p>Nit\u01a1 l\u1ecfng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p nhanh h\u01a1n v\u00e0 h\u1eefu \u00edch h\u01a1n \u0111\u1ec3 che ch\u1eafn v\u00e0 ki\u1ec3m tra c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed v\u00e0 b\u1ea3ng m\u1ea1ch.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ky_thuat_nghien_bi_dong_lanh\"><\/span><strong>K\u1ef9 thu\u1eadt nghi\u1ec1n bi \u0111\u00f4ng l\u1ea1nh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u00e1y nghi\u1ec1n bi h\u00e0nh tinh \u0111\u00f4ng l\u1ea1nh \u0111\u01b0\u1ee3c trang b\u1ecb n\u1eafp c\u00e1ch nhi\u1ec7t b\u1ea3o \u00f4n v\u00e0 s\u1eed d\u1ee5ng h\u01a1i nit\u01a1 l\u1ecfng \u0111\u01b0a v\u00e0o m\u00e1y nghi\u1ec1n bi li\u00ean t\u1ee5c, lu\u1ed3ng h\u01a1i l\u1ea1nh s\u1ebd l\u00e0 ch\u1ea5t h\u1ea5p th\u1ee5 li\u00ean t\u1ee5c l\u01b0\u1ee3ng nhi\u1ec7t do bu\u1ed3ng nghi\u1ec1n bi t\u1ea1o ra do v\u00f2ng xoay t\u1ed1c \u0111\u1ed9 cao, do \u0111\u00f3 l\u00e0m cho bu\u1ed3ng nghi\u1ec1n bi ch\u1ee9a nguy\u00ean li\u1ec7u, bi nghi\u1ec1n lu\u00f4n \u1edf trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f4ng l\u1ea1nh nh\u1ea5t \u0111\u1ecbnh. C\u00e1c qu\u00e1 tr\u00ecnh tr\u1ed9n, nghi\u1ec1n m\u1ecbn, ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m m\u1edbi v\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t l\u00f4 nh\u1ecf v\u1eadt li\u1ec7u c\u00f4ng ngh\u1ec7 cao s\u1ebd di\u1ec5n ra trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f4ng l\u1ea1nh. Thi\u1ebft b\u1ecb c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf, hi\u1ec7u qu\u1ea3 to\u00e0n di\u1ec7n, \u0111\u1ed9 ph\u00f9 h\u1ee3p cao, \u00edt ti\u1ebfng \u1ed3n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong y h\u1ecdc, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng, c\u00f4ng nghi\u1ec7p \u0111\u00e8n, v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, luy\u1ec7n kim, g\u1ed1m s\u1ee9, kho\u00e1ng s\u1ea3n v\u00e0 m\u1ed9t s\u1ed1 ng\u00e0nh kh\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ky_thuat_gia_cong_xanh\"><\/span><strong>K\u1ef9 thu\u1eadt gia c\u00f4ng xanh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u1eaft \u0111\u00f4ng l\u1ea1nh l\u00e0 qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng ch\u1ea5t l\u1ecfng \u0111\u00f4ng l\u1ea1nh nh\u01b0 nit\u01a1 l\u1ecfng, carbon dioxide l\u1ecfng v\u00e0 h\u1ec7 th\u1ed1ng c\u1eaft s\u1ebd phun lu\u1ed3ng kh\u00ed l\u1ea1nh \u0111\u1ebfn v\u00f9ng c\u1eaft, d\u1eabn \u0111\u1ebfn v\u00f9ng c\u1eaft s\u1ebd \u1edf tr\u1ea1ng th\u00e1i \u0111\u00f4ng l\u1ea1nh c\u1ee5c b\u1ed9 ho\u1eb7c t\u00ecnh tr\u1ea1ng si\u00eau \u0111\u00f4ng l\u1ea1nh, s\u1eed d\u1ee5ng \u0111\u1ed9 gi\u00f2n \u0111\u00f4ng l\u1ea1nh c\u1ee7a ph\u00f4i (workpiece) trong \u0111i\u1ec1u ki\u1ec7n \u0111\u00f4ng l\u1ea1nh \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gia c\u00f4ng c\u1eaft ph\u00f4i, tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t ph\u00f4i. Theo s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a m\u00f4i tr\u01b0\u1eddng l\u00e0m l\u1ea1nh, c\u1eaft \u0111\u00f4ng l\u1ea1nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh c\u1eaft kh\u00ed l\u1ea1nh v\u00e0 c\u1eaft b\u1eb1ng nit\u01a1 l\u1ecfng. Ph\u01b0\u01a1ng ph\u00e1p c\u1eaft kh\u00ed l\u1ea1nh \u0111\u00f4ng l\u1ea1nh l\u00e0 c\u00e1ch phun lu\u1ed3ng kh\u00f4ng kh\u00ed \u0111\u00f4ng l\u1ea1nh -20\u2103 ~ -30\u2103 (ho\u1eb7c th\u1eadm ch\u00ed th\u1ea5p h\u01a1n) v\u00e0o b\u1ed9 ph\u1eadn x\u1eed l\u00fd c\u1ee7a \u0111\u1ea7u d\u1ee5ng c\u1ee5 v\u00e0 tr\u1ed9n v\u1edbi d\u1ea7u gia c\u00f4ng (10 ~ 20m 1 m\u1ed7i gi\u1edd), \u0111\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0m l\u1ea1nh, lo\u1ea1i b\u1ecf m\u1ea1t nguy\u00ean li\u1ec7u, b\u00f4i tr\u01a1n. So v\u1edbi ph\u01b0\u01a1ng ph\u00e1p c\u1eaft truy\u1ec1n th\u1ed1ng, c\u1eaft \u0111\u00f4ng l\u1ea1nh c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n vi\u1ec7c tu\u00e2n th\u1ee7 quy tr\u00ecnh, c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t ph\u00f4i v\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n<p>Trung t\u00e2m x\u1eed l\u00fd c\u1ee7a C\u00f4ng ty C\u00f4ng nghi\u1ec7p Yasuda Nh\u1eadt B\u1ea3n \u00e1p d\u1ee5ng c\u00e1ch b\u1ed1 tr\u00ed \u1ed1ng d\u1eabn kh\u00ed \u0111o\u1ea1n nhi\u1ec7t \u0111\u01b0\u1ee3c l\u1eafp v\u00e0o gi\u1eefa tr\u1ee5c \u0111\u1ed9ng c\u01a1 v\u00e0 tr\u1ee5c m\u00e1y c\u1eaft, \u0111\u1ed3ng th\u1eddi d\u1eabn tr\u1ef1c ti\u1ebfp \u0111\u1ebfn l\u01b0\u1ee1i c\u1eaft b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng lu\u1ed3ng gi\u00f3 \u0111\u00f4ng l\u1ea1nh -30\u2103. S\u1ef1 s\u1eafp x\u1ebfp n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1eaft v\u00e0 c\u00f3 l\u1ee3i cho vi\u1ec7c th\u1ef1c hi\u1ec7n c\u00f4ng ngh\u1ec7 c\u1eaft kh\u00ed l\u1ea1nh. Kazuhiko Yokokawa \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u v\u1ec1 l\u00e0m l\u1ea1nh b\u1eb1ng kh\u00ed l\u1ea1nh trong quy tr\u00ecnh ti\u1ec7n v\u00e0 phay. Trong th\u1eed nghi\u1ec7m phay, dung d\u1ecbch c\u1eaft g\u1ed1c n\u01b0\u1edbc, lu\u1ed3ng gi\u00f3 \u1edf nhi\u1ec7t \u0111\u1ed9 b\u00ecnh th\u01b0\u1eddng (+10\u2103) v\u00e0 kh\u00ed l\u1ea1nh (-30\u2103) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 so s\u00e1nh l\u1ef1c c\u1eaft. K\u1ebft qu\u1ea3 cho th\u1ea5y \u0111\u1ed9 b\u1ec1n c\u1ee7a d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 khi s\u1eed d\u1ee5ng kh\u00ed l\u1ea1nh. Trong th\u1eed nghi\u1ec7m ti\u1ec7n, t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n d\u1ee5ng c\u1ee5 c\u1ee7a kh\u00ed l\u1ea1nh (-20\u2103) th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi kh\u00f4ng kh\u00ed b\u00ecnh th\u01b0\u1eddng (+20\u2103).<\/p>\n<p>C\u1eaft l\u1ea1nh b\u1eb1ng nit\u01a1 l\u1ecfng c\u00f3 hai \u1ee9ng d\u1ee5ng quan tr\u1ecdng. M\u1ed9t l\u00e0 s\u1eed d\u1ee5ng \u00e1p su\u1ea5t c\u1ee7a b\u00ecnh c\u1ea5p \u0111\u1ec3 phun nit\u01a1 l\u1ecfng tr\u1ef1c ti\u1ebfp v\u00e0o khu v\u1ef1c c\u1eaft gi\u1ed1ng nh\u01b0 dung d\u1ecbch c\u1eaft. Hai l\u00e0 l\u00e0m l\u1ea1nh gi\u00e1n ti\u1ebfp d\u1ee5ng c\u1ee5 ho\u1eb7c ph\u00f4i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng chu tr\u00ecnh bay h\u01a1i c\u1ee7a nit\u01a1 l\u1ecfng d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t. Hi\u1ec7n t\u1ea1i, c\u1eaft \u0111\u00f4ng l\u1ea1nh r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh gia c\u00f4ng h\u1ee3p kim titan, th\u00e9p mangan cao, th\u00e9p c\u1ee9ng v\u00e0 c\u00e1c v\u1eadt li\u1ec7u kh\u00f3 gia c\u00f4ng kh\u00e1c.<\/p>\n<p>KPRaijurkar \u0111\u00e3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 cacbua H13A v\u00e0 s\u1eed d\u1ee5ng chu tr\u00ecnh nit\u01a1 l\u1ecfng \u0111\u1ec3 l\u00e0m l\u1ea1nh c\u00f4ng c\u1ee5 c\u1eaft \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c th\u00ed nghi\u1ec7m c\u1eaft \u0111\u00f4ng l\u1ea1nh tr\u00ean h\u1ee3p kim titan. K\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m cho th\u1ea5y so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1eaft truy\u1ec1n th\u1ed1ng, \u0111\u1ed9 m\u00e0i m\u00f2n c\u1ee7a d\u1ee5ng c\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf r\u00f5 r\u00e0ng, nhi\u1ec7t \u0111\u1ed9 c\u1eaft gi\u1ea3m 30% v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng b\u1ec1 m\u1eb7t ph\u00f4i \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3. Wan Guangmin \u0111\u00e3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u00e0m l\u1ea1nh gi\u00e1n ti\u1ebfp \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c th\u00ed nghi\u1ec7m c\u1eaft \u0111\u00f4ng l\u1ea1nh tr\u00ean th\u00e9p mangan cao v\u00e0 k\u1ebft qu\u1ea3 \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 nh\u01b0 sau: Khi \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u00e0m l\u1ea1nh gi\u00e1n ti\u1ebfp \u0111\u1ec3 x\u1eed l\u00fd th\u00e9p mangan cao \u1edf nhi\u1ec7t \u0111\u1ed9 l\u1ea1nh, tr\u1edf l\u1ef1c d\u1ee5ng c\u1ee5 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf, \u0111\u1ed9 m\u00e0i m\u00f2n c\u1ee7a d\u1ee5ng c\u1ee5 gi\u1ea3m, c\u00e1c d\u1ea5u hi\u1ec7u h\u00f3a c\u1ee9ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i c\u0169ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Wang Lianpeng v\u00e0 c\u1ed9ng s\u1ef1 \u0111\u00e3 th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p phun nit\u01a1 l\u1ecfng trong gia c\u00f4ng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p th\u00e9p t\u00f4i 45 tr\u00ean m\u00e1y c\u00f4ng c\u1ee5 CNC v\u00e0 nh\u1eadn x\u00e9t v\u1ec1 k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m: \u0110\u1ed9 b\u1ec1n c\u1ee7a d\u1ee5ng c\u1ee5 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t ph\u00f4i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p phun nit\u01a1 l\u1ecfng trong gia c\u00f4ng th\u00e9p t\u00f4i 45 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/p>\n<p>\u1ede tr\u1ea1ng th\u00e1i x\u1eed l\u00fd l\u00e0m l\u1ea1nh b\u1eb1ng nit\u01a1 l\u1ecfng, v\u1eadt li\u1ec7u cacbua k\u1ebft h\u1ee3p \u0111\u1ed9 b\u1ec1n u\u1ed1n, \u0111\u1ed9 b\u1ec1n \u0111\u1ee9t g\u00e3y v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng t\u0103ng theo nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 do \u0111\u00f3, d\u1ee5ng c\u1ee5 c\u1eaft \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u cacbua k\u1ebft d\u00ednh \u0111\u01b0\u1ee3c l\u00e0m l\u1ea1nh b\u1eb1ng nit\u01a1 l\u1ecfng c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n hi\u1ec7u su\u1ea5t c\u1eaft tuy\u1ec7t v\u1eddi, nh\u01b0 \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi s\u1ed1 l\u01b0\u1ee3ng pha li\u00ean k\u1ebft. \u0110\u1ed1i v\u1edbi th\u00e9p gi\u00f3 (HSS), v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f4ng l\u1ea1nh, \u0111\u1ed9 c\u1ee9ng t\u0103ng l\u00ean v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp th\u1ea5p, nh\u01b0ng nh\u00ecn chung c\u00f3 th\u1ec3 li\u00ean k\u1ebft hi\u1ec7u su\u1ea5t c\u1eaft t\u1ed1t h\u01a1n. \u00d4ng \u0111\u00e3 nghi\u00ean c\u1ee9u v\u1ec1 m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gia c\u00f4ng c\u1eaft b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f4ng l\u1ea1nh, l\u1ef1a ch\u1ecdn n\u0103m lo\u1ea1i v\u1eadt li\u1ec7u bao g\u1ed3m th\u00e9p carbon th\u1ea5p AISll010, th\u00e9p carbon cao AISl070, th\u00e9p ch\u1ecbu l\u1ef1c AISIE52100, h\u1ee3p kim titan Ti-6A 1-4V, h\u1ee3p kim nh\u00f4m \u0111\u00fac A390, th\u00f4ng qua vi\u1ec7c th\u1ef1c hi\u1ec7n nghi\u00ean c\u1ee9u v\u00e0 \u0111\u01b0a ra \u0111\u00e1nh gi\u00e1: Do \u0111\u1ed9 gi\u00f2n tuy\u1ec7t v\u1eddi khi \u0111\u00f4ng l\u1ea1nh, k\u1ebft qu\u1ea3 gia c\u00f4ng mong mu\u1ed1n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch c\u1eaft \u0111\u00f4ng l\u1ea1nh. \u0110\u1ed1i v\u1edbi th\u00e9p cacbon cao v\u00e0 th\u00e9p ch\u1ecbu l\u1ef1c, nhi\u1ec7t \u0111\u1ed9 t\u0103ng trong v\u00f9ng c\u1eaft v\u00e0 t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n c\u1ee7a d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ea1n ch\u1ebf b\u1eb1ng c\u00e1ch l\u00e0m l\u1ea1nh b\u1eb1ng nit\u01a1 l\u1ecfng. \u0110\u1ed1i v\u1edbi h\u1ee3p kim nh\u00f4m \u0111\u00fac c\u1eaft, \u1ee9ng d\u1ee5ng l\u00e0m l\u1ea1nh \u0111\u00f4ng l\u1ea1nh c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng c\u1ee7a d\u1ee5ng c\u1ee5 v\u00e0 d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i kh\u1ea3 n\u0103ng m\u00e0i m\u00f2n pha silicon, trong qu\u00e1 tr\u00ecnh gia c\u00f4ng h\u1ee3p kim titan, d\u1ee5ng c\u1ee5 v\u00e0 ph\u00f4i \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t \u0111\u1ed3ng th\u1eddi b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00f4ng l\u1ea1nh, nhi\u1ec7t \u0111\u1ed9 c\u1eaft th\u1ea5p h\u1eefu \u00edch v\u00e0 lo\u1ea1i b\u1ecf \u00e1i l\u1ef1c h\u00f3a h\u1ecdc gi\u1eefa titan v\u00e0 v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o d\u1ee5ng c\u1ee5.<\/p>\n<p><i>(Ngu\u1ed3n t\u00e0i li\u1ec7u: <\/i><a href=\"https:\/\/www.hlcryo.com\/news\/application-of-liquid-nitrogen-in-different-fields-3-electronic-and-manufacturing-field\/\"><i>https:\/\/www.hlcryo.com\/news\/application-of-liquid-nitrogen-in-different-fields-3-electronic-and-manufacturing-field\/<\/i><\/a><i>)<\/i><\/p>\n","protected":false},"featured_media":5830,"parent":0,"template":"","meta":{"_acf_changed":false},"class_list":["post-4356","service","type-service","status-publish","has-post-thumbnail","hentry","service-category-kien-thuc-co-ban"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u1ee8ng D\u1ee5ng Nit\u01a1 L\u1ecfng Trong C\u00f4ng Nghi\u1ec7p \u0110i\u1ec7n T\u1eed &amp; 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