{"id":727,"date":"2026-03-25T06:00:51","date_gmt":"2026-03-25T06:00:51","guid":{"rendered":"https:\/\/jstvalve.com\/?post_type=product&p=727"},"modified":"2026-03-30T03:38:57","modified_gmt":"2026-03-30T03:38:57","slug":"stainless-steel-check-valves-features-types-design","status":"publish","type":"product","link":"https:\/\/jstvalve.com\/vi\/product\/stainless-steel-check-valves-features-types-design\/","title":{"rendered":"Van m\u1ed9t chi\u1ec1u b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9"},"content":{"rendered":"
\n
C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a van m\u1ed9t chi\u1ec1u b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/h6>\n

Th\u00e9p kh\u00f4ng g\u1ec9 austenit l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 c\u1ea5u tr\u00fac austenit \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng. Khi h\u00e0m l\u01b0\u1ee3ng Cr kho\u1ea3ng 18%, Ni kho\u1ea3ng 8%\u201325%, C kho\u1ea3ng 0,11%, th\u00e9p s\u1ebd c\u00f3 c\u1ea5u tr\u00fac austenit \u1ed5n \u0111\u1ecbnh. Th\u00e9p kh\u00f4ng g\u1ec9 austenit Cr-Ni bao g\u1ed3m c\u00e1c lo\u1ea1i th\u00e9p 18Cr-8Ni n\u1ed5i ti\u1ebfng v\u00e0 c\u00e1c lo\u1ea1i th\u00e9p thu\u1ed9c d\u00f2ng Cr-Ni cao \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1eb1ng c\u00e1ch b\u1ed5 sung h\u00e0m l\u01b0\u1ee3ng Cr v\u00e0 Ni c\u00f9ng c\u00e1c nguy\u00ean t\u1ed1 Mo, Cu, Si, Nb, Ti v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c tr\u00ean c\u01a1 s\u1edf n\u00e0y. Th\u00e9p kh\u00f4ng g\u1ec9 austenit l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng t\u1eeb t\u00ednh, c\u00f3 \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 b\u1ec1n cao, nh\u01b0ng \u0111\u1ed9 b\u1ec1n th\u1ea5p, kh\u00f4ng th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n th\u00f4ng qua qu\u00e1 tr\u00ecnh chuy\u1ec3n pha, ch\u1ec9 c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n th\u00f4ng qua gia c\u00f4ng ngu\u1ed9i, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed5 sung S, Ca, Se, Te v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c, lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng gia c\u00f4ng t\u1ed1t.<\/p>\n

\n
Lo\u1ea1i van m\u1ed9t chi\u1ec1u b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/h6>\n

Van m\u1ed9t chi\u1ec1u hai \u0111\u0129a<\/strong><\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m thi\u1ebft k\u1ebf<\/strong><\/p>\n

Thi\u1ebft k\u1ebf theo ti\u00eau chu\u1ea9n JB\/T 8937 v\u00e0 API 594<\/p>\n

* Lo\u1ea1i wafer.<\/p>\n

* \u0110\u1ea7u n\u1ed1i: Flange RF, Wafer v\u00e0 Lug \u0111\u1ec1u l\u00e0 c\u00e1c lo\u1ea1i ti\u00eau chu\u1ea9n<\/p>\n

Ph\u1ee5 t\u00f9ng & V\u1eadt li\u1ec7u<\/strong><\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n
Kh\u00f4ng.<\/td>\nT\u00ean b\u1ed9 ph\u1eadn<\/td>\nCh\u1ea5t li\u1ec7u<\/td>\n<\/tr>\n<\/thead>\n
1<\/td>\nV\u00edt<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\n<\/tr>\n
2<\/td>\nM\u00f9a xu\u00e2n<\/td>\nInconel X750<\/td>\n<\/tr>\n
3<\/td>\nX\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed b\u00eca<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\n<\/tr>\n
4<\/td>\nN\u1ed9i dung<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\n<\/tr>\n
5<\/td>\n\u0110\u0129a<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\n<\/tr>\n
6<\/td>\nGhim<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\n<\/tr>\n
7<\/td>\nChi ti\u1ebft \u0111\u1ecbnh v\u1ecb<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\n<\/tr>\n
8<\/td>\nMi\u1ebfng \u0111\u1ec7m<\/td>\nPTFE<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

><\/p>\n<\/div>\n

\"Van<\/p>\n

cung c\u1ea5p d\u00f2ng s\u1ea3n ph\u1ea9m van m\u1ed9t chi\u1ec1u b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 \u0111a d\u1ea1ng, ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi lo\u1ea1i \u1ee9ng d\u1ee5ng v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/strong><\/p>","protected":false},"excerpt":{"rendered":"

Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 t\u00ean g\u1ecdi t\u1eaft c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ed1ng axit. Lo\u1ea1i th\u00e9p c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i t\u00e1c \u0111\u1ed9ng c\u1ee7a kh\u00f4ng kh\u00ed, h\u01a1i n\u01b0\u1edbc, n\u01b0\u1edbc v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n y\u1ebfu kh\u00e1c \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9; c\u00f2n lo\u1ea1i th\u00e9p c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i s\u1ef1 \u0103n m\u00f2n c\u1ee7a c\u00e1c m\u00f4i tr\u01b0\u1eddng h\u00f3a h\u1ecdc (axit, ki\u1ec1m, mu\u1ed1i v\u00e0 c\u00e1c ch\u1ea5t \u0103n m\u00f2n h\u00f3a h\u1ecdc kh\u00e1c) \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00e9p ch\u1ed1ng axit.<\/p>\n

D\u1ef1a tr\u00ean c\u1ea5u tr\u00fac tinh th\u1ec3 kh\u00e1c nhau, th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh th\u00e9p martensit, th\u00e9p ferrit, th\u00e9p austenit, th\u00e9p kh\u00f4ng g\u1ec9 austenit-ferrit (hai pha) v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee9ng h\u00f3a do k\u1ebft t\u1ee7a.<\/p>\n

C\u1ea5u t\u1ea1o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh th\u00e9p kh\u00f4ng g\u1ec9 crom, th\u00e9p kh\u00f4ng g\u1ec9 crom-niken v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 crom-mangan-nit\u01a1.<\/p>","protected":false},"featured_media":747,"comment_status":"open","ping_status":"closed","template":"","meta":{"_angie_page":false,"_eb_attr":"","_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[30],"product_tag":[],"class_list":["post-727","product","type-product","status-publish","has-post-thumbnail","product_cat-check-valve","first","instock","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"_links":{"self":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product\/727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/comments?post=727"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/media\/747"}],"wp:attachment":[{"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/media?parent=727"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product_brand?post=727"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product_cat?post=727"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jstvalve.com\/vi\/wp-json\/wp\/v2\/product_tag?post=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}