Dab tsi yog cov txheej txheem spinning ntawm malleable steel yeeb nkab fittings?
May 31, 2023
Muaj ntau ntau hom malleable steel yeeb nkab fittings, cia peb qhia cov kev paub txog malleable steel yeeb nkab fittings:
1. Luj tshib: Lub luj tshib tau muab faib ua 90- lub luj tshib (code 90), 45- lub luj tshib (tseem hu ua ncaj khoov, ib nrab-khoov, code 120), lub luj tshib sib txawv, thiab sab hauv thiab lub luj tshib sab nraud. Nws yog tsuas yog siv rau lub kaum sab xis tig ntawm cov yeeb nkab fittings.
2. Tee qeb: yog li lub npe Poetic, lub tee yog cov yeeb nkab txuas txuas siv rau peb cov kav dej. Vim hais tias ntawm qhov sib txawv calibers ntawm peb cov kav dej, lawv tau muab faib ua tib txoj kab uas hla tee (code 130) thiab qhov sib txawv-inch tee (code 130R, nco ntsoov tias R yog qhov sib txawv txoj kab uas hla), thiab qhov sib txawv-diameter tee muab faib. rau hauv qhov sib txawv-inch tees (piv txwv li Ob sab muaj tib lub caliber thiab nruab nrab ib tug muaj ib tug me me caliber), nruab nrab thiab loj tees (ob sab muaj tib caliber tab sis me me, thiab nruab nrab yog loj heev), thiab sab loj tee (ib tug ntawm ob sab muaj ib tug loj caliber, thiab lwm yam yog sib txawv nyob rau hauv sequence. Faj seeb: sab dav Lub loj tee yog lub me me nrog rau nruab nrab txoj kab uas hla).
Kev cai naming rau txawv-inch tees: ob concentric interfaces yog siv raws li lub ntsiab yeeb nkab, thiab lub npe pib los ntawm lub loj txoj kab uas hla, ces lub nruab nrab yeeb nkab txoj kab uas hla, thiab thaum kawg rau lwm lub ntsiab yeeb nkab txoj kab uas hla)
Malleable cam khwb cia hlau ntawm malleable hlau feem ntau hu ua malleable hlau. Txij li thaum cov graphite nyob rau hauv malleable cam khwb cia hlau yog nyob rau hauv daim ntawv ntawm flocculents, nws muaj tsawg splitting nyhuv ntawm lub matrix, yog li nws cov cuab yeej cuab tam yog siab dua li ntawm grey cam khwb cia hlau, thiab nws plasticity thiab toughness yog zoo dua. Txawm li cas los xij, malleable cam khwb cia hlau tsis tuaj yeem forged. Cov qauv matrix ntawm malleable cam khwb cia hlau yog txawv, thiab nws cov kev ua tau zoo kuj tsis zoo ib yam, cov dub lub plawv malleable cam khwb cia hlau muaj ntau dua plasticity thiab toughness, thaum pearlitic malleable cam khwb cia hlau muaj zog dua, hardness thiab hnav tsis kam.
Cov txheej txheem ntawm cov hlau castings yog los nrum dawb hlau castings ua ntej, thiab tom qab ntawd undergo malleable annealing (forgeable annealing ua rau cementite decompose rau hauv flocculent graphite kom tau malleable hlau castings). Feem ntau, cov txheej txheem cam khwb cia ntawm malleable steel yog dawb cam khwb cia hlau, uas zoo li nkig. Yog li ntawd, cov txheej txheem tuav yuav cuam tshuam rau nws. Txhawm rau txheeb xyuas qhov cuam tshuam ntawm cov txheej txheem tuav, Shuangli yuav simulate qhov cuam tshuam ntawm cov txheej txheem tuav los ntawm kev ntsuam xyuas cuam tshuam. Cov pa roj hauv cov kab noj hniav yog yooj yim tawm. Cov hlau ua kua yuav tsis ua rau cov pwm puas thaum nws cuam tshuam rau phab ntsa pwm. Cov hlau ua kua ua rau txhua qhov chaw ntawm cov pwm kab noj hniav kom sai li sai tau.
