2507 duplex bakin karfe bawul yana amfani da JB/T7746 “Compactkarfe bawul” gabatarwar daidaitattun masana'antu
Kamfaninmu ya ƙware a cikin samar da ruwan teku 2205 duplex bakin karfe ball bawul 2507 duplex bakin karfe ball bawul 2205 duplex bakin karfe globe bawul 2507 duplex bakin karfe globe bawul 2205 duplex bakin karfe ƙofar bawul 2507 duplex bakin karfe ƙofar bawul 2205 Y- duplex bakin karfe ƙofar bawul nau'in tacewa 2507 duplex bakin karfe tace 2205 duba bawul 2507 duba bawul da sauran kayayyakin
Seawater 2205 duplex karfe bawul molybdenum duplex bakin karfe yana da kyau juriya ga chloride danniya lalata karkashin low danniya. Gabaɗaya, nau'in austenitic bakin karfe nau'in 18-8 yana da haɗari ga raunin lalacewa a cikin maganin chloride tsaka tsaki sama da 60C. Masu musayar zafi, masu fitar da ruwa da sauran kayan aikin da aka yi da irin wannan bakin karfe a cikin masana'antun masana'antu na chloride da hydrogen sulfide suna da dabi'ar haifar da karyewar damuwa, yayin da duplex bakin karfe yana da juriya mai kyau.
(2) Seawater 2205 duplex karfe bawul molybdenum duplex bakin karfe yana da kyau lalata juriya. Mahimmancin yuwuwar bututun bakin karfe na duplex yana kama da na bakin karfe austenitic tare da juriya iri ɗaya (PRE=Cr%+3.3Mo%+16N%). Juriya na lalata na duplex bakin karfe da austenitic bakin karfe yayi kama da na AI 316L. Juriya na lalata babban chromium duplex bakin karfe mai dauke da 25% Cr, musamman nitrogen, ya fi na AI 316L.
(3) Tare da kyakkyawan juriya na lalata ga gajiya da sa aikin lalata. A wasu matsakaitan matsakaitan lalata, dace da samar da famfo, bawuloli da sauran kayan wuta.
(4) Kyakkyawan kaddarorin injiniyoyi masu kyau. Babban ƙarfi da ƙarfin gajiya, ƙarfin yawan amfanin ƙasa shine nau'in austenitic bakin karfe 18-8 sau 2. A cikin m bayani jihar, da elongation kai 25%, da taurin darajar AK (V-notch) ne sama da 100J.
(5) Kyakkyawan weldability, ƙananan zafi mai zafi, gabaɗaya kafin waldawa ba tare da preheating ba, walƙiya ba tare da magani mai zafi ba, ana iya yin walda tare da nau'in 18-8 austenitic bakin karfe ko carbon karfe da sauran nau'ikan iri.
(6) The thermal aiki zafin jiki kewayon Duplex bakin karfe dauke da low chromium (18% Cr) ne fadi fiye da na 18-8 austenitic bakin karfe, kuma juriya ne kananan. Ana iya mirgina kai tsaye don samar da farantin karfe ba tare da ƙirƙira ba. Duplex bakin karfe dauke da high chromium (25% Cr) ne dan kadan mafi wuya fiye da austenitic bakin karfe thermal sarrafa, za a iya samar da faranti, tube da waya kayayyakin.
(7) sanyi aiki fiye da 18-8 nau'in austenitic bakin karfe aiki hardening sakamako ne babba, a cikin tube, farantin nakasawa a matakin farko, bukatar amfani da mafi girma danniya zuwa nakasawa.
(8) Idan aka kwatanta da austenitic bakin karfe, high thermal conductivity, low mikakke fadada coefficient, dace da kayan aiki rufi da kuma samar da hadawa farantin. Har ila yau, ya dace da yin ɗigon bututu na mai musayar zafi, kuma ƙimar canja wurin zafi ya fi na austenitic bakin karfe.
(9) Har yanzu akwai nau'i-nau'i iri-iri na rashin ƙarfi na chromium ferrite bakin karfe, bai kamata a yi amfani da shi fiye da yanayin aiki na 300C ba. Ƙananan abun ciki na chromium na duplex bakin karfe, ƙarancin lahani na daidai lokacin gaggautsa.
JB/T7746 "Compact Karfe Valve" Matsayin masana'antu yana gabatar da ƙirar yanzu da ƙirar ƙirƙira don ƙirƙira ƙaramin diamita a cikin ƙasarmu JB/T 7746-2006 , Ranar aiwatarwa shine Maris 1, 2007. Maimakon JB/T 7746-1995 "Rage diamita ƙirƙira karfe Valve".
I. Bayani
A halin yanzu, ƙirar ƙira da ƙirar ƙirƙira na ƙirƙira ƙaramin diamita na bawul a cikin ƙasarmu shine JB/T 7746-2006 “Ƙaramin Ƙarfe Bawul”, an amince da wannan ma'aunin kuma an ba da shi a ranar 14 ga Satumba, 2006, kwanan watan aiwatarwa shine Maris 1, 2007 , a madadin JB/T 7746-1995 "Rage diamita ƙirƙira Karfe Valve".
Wannan bita ya yi nuni da Cibiyar Man Fetur ta Amurka API 602-1998 "Ƙarar Ƙofar Ƙofar Ƙofar Ƙofar Ƙofar Ƙarfe don Ƙarfafa, Zare, Welded da Extended Jiki Haɗin" kuma ya yi daidai da API 602 a cikin manyan buƙatun fasaha.
Wannan ma'auni yana ƙayyadadden nau'in tsari, buƙatun fasaha, hanyoyin gwaji, dokokin dubawa, alamar alama da buƙatun samar da ƙarancin diamita na bawul ɗin ƙarfe.
Wannan ma'auni ya shafi ƙofa, globe, ɗagawa da cakuɗe-haɗe. Don zaren ciki da soket ɗin waldawa bawul tare da matsa lamba PN18 ~ PN250 da girman girman DN8 ~ DN65; Hakanan ana amfani da shi zuwa matsa lamba PN18 ~ PN250, girman girman DN8 ~ DN100 flange dangane da bawul ɗin haɗin walda. Matsakaicin da ake buƙata don ruwa, man fetur da samfuran da ke da alaƙa da mai, iskar gas, tururi, da sauransu.
Wannan ma'auni kuma ya shafi bawuloli tare da haɗin da aka rufe, matsa lamba PN16 ~ PN250, girman girman DN8 ~ DN50.
Biyu, JB / T 7746 "m karfe bawul" babban bambanci tsakanin tsohon da sabon matsayin.
1, canjin sunan, ainihin ma'aunin JB/T7746-95 mai suna "Rage diamita ƙirƙira karfe bawul", sabon ma'auni JB/T 7746-2006 mai suna "m karfe bawul";
2. Ƙara yawan buƙatun oda;
3. Ƙara "Bellows Seling Valve Structure", "Matsa lamba mara kyau PN250 Valve matsa lamba-zazzabi Grade a cikin Shafi B" da "Butt waldi Girman Girman a shafi na C";
4, iyakokin aikace-aikacen yana ƙaruwa da girman ma'aunin matsin lamba kuma tsarin murfin bawul ɗin shine bellows shãfe haske bawul, da matsa lamba sa na bawul ƙara PN16, PN63, ciki thread, zuwa gudanar waldi bawul diamita ƙara DN8 da DN65, flange da diamita na walda bawul yana ƙaruwa DN8, DN65, DN80, DN100;
5. Tsarin al'ada na bellow sealing bawul yana ƙara zuwa almara;
6. Matsakaicin zafin jiki na PN250 bawul da aka ƙayyade a cikin Sashe na 5.1 zai kasance daidai da Karin bayani B;
7. A cikin Sashe na 5.2 "Ƙarshen Haɗin Jiki na Valve", an raba sashin zuwa sassa hudu bisa ga tsarin haɗin gwiwa, kuma an sake nazarin girman tsarin tsayin bawul tare da walƙiya soket da haɗin zaren ciki, kuma girman girman walƙiya. kuma an ƙayyade ƙarshen walda;
8. A cikin Sashe na 5.4, ana ƙara tanadi don kusoshi da kwayoyi da aka yi amfani da su a jikin bawul na kayan daban-daban;
9. A cikin Sashe na 5.5, an canza tsarin labari na sassa, kuma an ƙara samar da kayan aiki na ciki wanda ya dace da kayan jiki daban-daban, da ma'anar ƙananan diamita na ciki na bawul mai tushe da kuma tanadi na zaren na zaren. an kara bawul mai tushe;
10. Abubuwan da ke cikin tsohon masana'antar dubawa da gwajin fom an ƙara su a cikin 7.1 da 7.2.
3. Manyan bambance-bambance tsakanin JB/T 7746-2006 da API 602 ma'auni
JB/T 7746-2006 daidaitattun daidai yake da API 602-1998 "Flanged, threaded, welded and Body elongated connection of the m karfe ƙofa bawul", wannan misali da API 602-1998 matakin daidaito ba daidai ba ne, babban bambance-bambancen su ne. mai bi:
1. Idan aka kwatanta da API 602-1998, wannan ma'auni yana ƙara bawuloli na duniya da kuma duba bawuloli zuwa nau'in cibiyar sadarwa na valve;
2. Idan aka kwatanta da ƙa'idar API 602-1998, raka'a a cikin wannan ma'auni suna ɗaukar tsarin awo;
3. Idan aka kwatanta da API 602-1998, wannan ma'auni yana ƙara buƙatun girman soket da ƙarshen waldawa;
4. Dangane da API 602-1998, wannan ma'auni yana ƙara tsawon tsarin buƙatun don walƙiya soket da bawul ɗin zaren ciki;
5. Wannan ma'auni yana soke abun ciki na tsayin ɓangaren haɗin jikin bawul a cikin daidaitattun API 602-1998;
6. Wannan ma'auni yana soke abubuwan da aka yi alama a cikin daidaitattun API 602-1998 kuma a maimakon haka yana nufin GB/T 12220 "Alamar Valve" kai tsaye;
7. Abubuwan da ke cikin Teburin 3 Matsakaicin-zazzabi na Ƙofar Ƙofar Ƙofa don 800 lb class a cikin API 602-1998 an daidaita shi;
8. Wannan ma'auni yana soke ƙayyadaddun kayan aiki a cikin Teburin 8 na daidaitattun API 602-1998 da abun ciki na daidaitattun ASTM;
9. Abubuwan da ke cikin tushe a cikin Teburin 10 na API 602-1998 an sauƙaƙe su daidai a cikin wannan ma'auni;
10, wannan ma'auni yana soke abun ciki na lambar hatimi da madaidaicin lambar hatimi a cikin Teburin 11 na daidaitattun API602-1998;
11. Wannan ma'auni yana soke abubuwan da ke cikin Mataki na 6 na jigilar kaya a cikin daidaitattun API602-1998 kuma a maimakon haka ya kwatanta JB/T 7928 "Bawul Supply Bukatun" misali;
12. Wannan ma'auni an haɗa shi da kyau daga Shafi A na API602-1998, "Ƙarin Bukatun don Ƙofar Ƙofar Ƙofar Ƙofar Ƙaƙƙarfan Bellows", kuma an haɗa shi cikin jikin ma'auni.
13. Idan aka kwatanta da API 602-1998, an ƙayyade rayuwar matsa lamba na bawuloli a cikin wannan ma'auni;
14. Dangane da ma'auni na API 602-1998, wannan ma'auni yana ƙara abubuwan da ake buƙata don dubawa da gwajin ƙwayoyin bellows;
15 Idan aka kwatanta da API 602-1998, wannan ma'auni yana ƙara buƙatun don gwajin rayuwa na matsa lamba, binciken masana'anta da nau'in binciken bawuloli;
Iv. Matsalolin da ya kamata a kula da su yayin amfani da wannan ma'auni
Tebu na 6 a cikin wannan ma'auni yana ƙayyade ƙaramin diamita na tushe, inda diamita na tushe ke nufin diamita na yanki na yanki na tushe ta hanyar tattarawa.
Lokacin aikawa: Nuwamba-25-2022
