Cov Qauv Thiab Cov Kev Zoo Thiab Cov Kev Tsis Zoo Los Ntawm Cov Phiaj Hlau Rooj Vag Valve
Mar 13, 2021
Qhov tseeb, nrum steel rooj vag li qub tau muab faib ua ob hom kev sib khi sab nraud, ib qho yog kev rho tawm tsis siv neeg, uas siv lub siab ntawm nruab nrab, thiab tom qab ntawd txiav ntsaws ruaj ruaj thaum nws tsim. Tom qab ntawd, qhov kev foob yuam yog nyob ntawm sab nraud quab yuam. Txawm hais tias lawv vam khom rau cov ntaub ntawv sib txawv, cov nyhuv ntawm kev sib khi ntawm ob zoo sib xws. Lub qhov rooj hlau nqaj hlau valve yog siv los kaw cov khoom siv hauv cov raj xa dej xws li cov kais dej, roj av, thiab kev lag luam tshuaj lom neeg.
Cov qauv thiab qhov zoo thiab qhov tsis zoo ntawm cov cam khwb cia steel li qub
1. Cov qauv kev cai:
Tus qauv tsim thiab kev tsim khoom: GB / T12234-2007
Tus qauv ntev qauv: GB / T12221-2005
Txuas flange txheem: GB / T9113
Qhov ntsuas qhov kub siab: GB / T12224-2005
Kev soj ntsuam tus qauv: GB / T13927-2008
2. Qhov zoo thiab tsis zoo
Cov tswv yim zoo: Tam sim no cia' s ua tibzoo saib qhov tshwj xeeb tshwj xeeb ntawm cam khwb cia steel li qub. Ua ntej tshaj, nws tsis tsuas yog muaj kev tiv thaiv qis ntawm qhov dej ntawm qhov tsis kam, tab sis kuj nws qhov chaw sib khi tsis tau txhuam thiab corroded los ntawm nruab nrab. Nws yog kev siv zog-txuag los qhib thiab kaw, qhov kev taw qhia nruab nrab ntws tsis txwv, tsis cuam tshuam qhov khiav, tsis txo lub siab, tus qauv yog yooj yim, tus qauv ntev, luv, kev tsim khoom yog qhov zoo, siab kub thiab cov ntaub ntawv pov thawj siab siab muaj kev txwv rau ntau cov ntawv thov.
Qhov tsis zoo: Tseem muaj qee qhov tsis xws luag hauv cov cam khwb cia steel li qub. Cia' s luv luv to taub tias nruab nrab ntawm qhov chaw sib khi ntawm cov nrum steel hlau, feem ntau nws yooj yim ua rau kev txhuam thiab khawb, yog li nws yuav kho ntau dua. nyuaj. Qhov loj me ntawm cov cam khwb cia steel valve yuav loj dua nyob rau hauv cov tsos, nws xav tau yiding qhov chaw thaum qhib, thiab nws qhib thiab kaw lub sijhawm yuav ntev dua.
Kev faib tawm ntawm cov cam khwb cia steel li qub
Tam sim no, muaj ntau ntau yam ntawm cam khwb cia steel li qub ntawm cov lag luam hauv nqe lus ntawm cov ntaub ntawv. Ua ntej tshaj plaws, cia' s thawj nkag siab txog plaub yam sib txawv steel hlau, thiab ntau yam tshwj xeeb steel qib ntawm txhua qhov rooj nqaj hlau valve. Carbon steel rooj vag valve casting qib yog: WCA, WCB, WCC, LCB, thiab lwm yam, muaj feem xyuam kub -46 degrees -425 degrees, rooj vag hlau stainless qhov rooj qib casting: 301 stainless hlau, CF8 stainless hlau. CF8M stainless hlau (sib raug rau forging 316 stainless hlau), thiab lwm yam.; siv tau kub -198 degrees -816 degrees, tsis tshua muaj alloy hlau faib ua kub kub alloy steel thiab lub zog loj tsawg alloy hlau, ntawm uas kub kub alloy hlau yog feem ntau hu ua chromium molybdenum steel. Casting qib ntawm chromium-molybdenum steel rooj vag li qub: ZG1Cr5Mo, ZG15Cr1MoV, ZG20CrMoV, WC6, WC9, C12A, thiab lwm yam Cov ntsuas kub siv tau li ntawm 550 ° C txog 750 ° C. Qhov ntsuas kub siv rau txhua qib khoom siv nws txawv, nyob ntawm qhov ua haujlwm tiag tiag.
2. Cov ntsuas pa roj carbon steel tau muab faib ua ob hom steel li qub, uas yog, cam khwb cia steel li qub thiab forged steel li qub, uas yog tsim los ntawm cov hlau nplaum thiab cov nkhaus feem. Forging yog yas tsim. Casting yog tsim los ntawm kev qhia cov hlau ua kua rau hauv cov pwm ntawm ib zaug. Tus neeg hais lus, kev siv lub forging zoo dua li ntawm kev cam, vim hais tias cov txheej txheem forging tsis tsim ua lub qhov hws thiab impurities, tab sis tus nqi kuj raug siab.
