Qhov sib txawv ntawm cov hlau rooj vag li qub thiab cam khwb cia steel rooj vag li qub yog los ntawm cov khoom siv lub cev valve, txuas mus rau cov khoom siv kho tshuab, siv tau rau kev ua haujlwm, kev tiv thaiv corrosion, thiab nqi. Kev xaiv yuav tsum ua kom haum rau qhov siab, qhov kub thiab txias, thiab cov yam ntxwv ntawm kev ua haujlwm. Cov lus qhia ntxaws ntxaws hauv qab no:
Material Inherent thiab Mechanical Property Differences
Cov khoom siv yog lub hauv paus ua rau qhov sib txawv ntawm cov khoom siv kho tshuab ntawm ob, txiav txim siab qhov kev txwv siab ntawm kev ua haujlwm.
Lub rooj vag hlau ductile siv cov khoom siv hlau ua cov khoom siv, kho nrog cov tshuaj spheroidizing xws li magnesium thiab cov ntsiab lus tsis tshua muaj hauv ntiaj teb kom spheroidize cov graphite, txhim kho toughness thiab tensile lub zog thaum khaws cov castability zoo heev thiab hnav tsis kam ntawm cam khwb cia hlau; Txawm li cas los xij, lawv muaj qhov tsis zoo siab - qhov kub thiab txias, nrog lub zog qis dua 300℃, thiab muaj kev laus thiab embrittlement nyob rau hauv ntev - kub kub.
Cam khwb cia steel rooj vag li qub siv carbon cam khwb cia hlau xws li WCB thiab alloy cam khwb cia hlau xws li WC6. Cov khoom siv yog cov ntshiab, nrog cov qauv siv lead ua ruaj khov, thiab nws cov khoom siv kho tshuab muaj kev nkag siab zoo dua rau cov hlau ductile, ua kom pom kev ruaj khov thiab ua haujlwm ntev hauv qhov kub thiab txias; Txawm li cas los xij, cam khwb cia hlau tsis muaj dej tsis zoo, yuav tsum muaj cov txheej txheem precision xws li xuab zeb casting, ua rau kev ua haujlwm nyuaj.
Precise Matching ntawm Cov Txheej Txheem Kev Ua Haujlwm
Qhov sib txawv ntawm cov khoom siv tshuab txiav txim siab qhov kev faib ua haujlwm ntawm ob hom li qub, cuam tshuam ncaj qha rau lawv qhov kev hloov pauv thiab kev nyab xeeb.
Lub qhov rooj hlau qhov rooj yog tsim rau nruab nrab thiab tsis tshua muaj siab (tsawg dua lossis sib npaug ntawm 1.6MPa) thiab qhov kub thiab txias (-20℃txog 200 degree), ua rau lawv xaiv tus nqi zoo rau kev siv pej xeem thiab kev lag luam. Lawv tsim nyog rau cov dej hauv nroog thiab cov dej ntws, dej phwj tuaj kho, thiab lwm yam xwm txheej, thiab sib haum nrog cov xov xwm me me thiab tiv taus cov av noo sab nraum zoov.
Cast steel gate valves are suitable for harsh industrial scenarios involving high temperature, high pressure, and complex media. They are critical components for core system safety, covering fields such as thermal power generation (≥425℃, >6.4MPa) thiab petrochemicals. Lawv tuaj yeem tswj kev hloov pauv ntau zaus thiab kev hloov pauv loj, tiv thaiv lub cev lub cev deformation thiab to.
Qhov sib txawv ntawm Corrosion Resistance thiab Physical Properties
Ob hom li qub sib txawv hauv kev tiv thaiv corrosion, qhov hnyav, thiab kev teeb tsa thiab kev saib xyuas nyuaj, cuam tshuam ncaj qha rau cov nqi khiav lag luam.
Cov hlau muaj zog corrosion kuj zoo dua piv rau cov hlau cam khwb cia zoo tib yam, thiab nws cov oxide zaj duab xis tuab tuaj yeem tiv taus cov av noo thiab me ntsis acidic lossis alkaline ib puag ncig nrog pH ntawm 4-9. Raws li cov lus qhia tib yam, nws qhov ceev (7.2g / cm³) qis dua cov hlau cam khwb cia (7.85g / cm³), ua rau nws 20% -30% sib dua, txo kev thauj mus los, kev teeb tsa, thiab kev saib xyuas cov nqi, thiab ua rau nws tsim nyog rau qhov chaw nyob ib puag ncig xws li qhov chaw siab thiab qhov chaw kaw.
Cam khwb cia hlau muaj zog corrosion kuj; zoo tib yam carbon cam khwb cia hlau yog nquag oxidation thiab xeb. Nyob rau hauv ib puag ncig corrosive, ntxiv los tiv thaiv- kev kho corrosion xws li cov roj hmab hauv ob sab phlu thiab tshuaj tsuag yog xav tau, nce nqi thiab sijhawm. Txawm li cas los xij, cam khwb cia hlau muaj lub zog muaj zog, tso cai rau lub cev lub cev tuab dua los tiv thaiv sab nraud xws li cov kav dej vibration thiab kev cuam tshuam hauv xov xwm. Nws kuj muaj zog tiv thaiv deformation nyob rau hauv siab - siab tshuab, xyuas kom meej sealing thiab structural kev ncaj ncees.
Qhov txawv ntawm Tus Nqi thiab Tus Nqi -Kev Ua Tau Zoo
Qhov sib txawv ntawm cov ntaub ntawv thiab cov txheej txheem ua rau muaj qhov tsis sib xws ntawm tus nqi, uas ua rau muaj feem cuam tshuam rau tus nqi - kev xaiv ua tau zoo rau cov xwm txheej sib txawv.
Lub rooj vag hlau qhov rooj muaj qhov txiaj ntsig tseem ceeb: cov khoom siv qis qis (tus npua hlau, spheroidizing tus neeg sawv cev), txheej txheem casting yooj yim, siab yield, thiab lub voj voog ua haujlwm luv. Lawv cov nqi tsuas yog 30%-60% ntawm cov cam khwb cia steel rooj vag li qub ntawm cov lus qhia tib yam, muab cov txiaj ntsig zoo tshaj plaws nyob rau hauv nruab nrab thiab tsis tshua muaj siab ua haujlwm ua haujlwm, txo tag nrho cov peev txheej.
Cam khwb cia steel rooj vag li qub muaj cov nqi siab dua, nrog rau kev nqis peev ntau ntxiv hauv cov khoom siv raw, cov txheej txheem, thiab ntxiv los tiv thaiv- kev kho corrosion, ua rau tus nqi siab dua. Txawm li cas los xij, lawv qhov kev ua tau zoo yog hloov tsis tau nyob rau hauv siab - kub thiab siab - cov xwm txheej tseem ceeb, tiv thaiv kev poob qis thiab kev nyab xeeb vim kev ua haujlwm tsis zoo. Lawv muab tus nqi implicit-effectiveness ntev- siv lub sij hawm thiab tsim nyog rau kev ua hauj lwm tseem ceeb nrog rau kev ua tau zoo siab thiab tsis tshua muaj nqi rhiab heev.
Lub sealing kev ua tau zoo thiab kev pab lub neej ntawm ob qho tib si txawv heev vim cov ntaub ntawv siv. Lub qhov rooj hlau qhov rooj siv cov roj hmab los yog cov hlau cam khwb cia. Roj hmab foob muab kev sib khi zoo dua tab sis tsis tshua muaj kev tiv thaiv qhov sib txawv ntawm qhov kub thiab txias, thaum cov ntsaws ruaj ruaj muaj kev txhim kho qhov kub thiab txias tab sis qis dua qhov tseeb. Lawv lub neej kev pabcuam yog 5-10 xyoo nyob rau hauv kev ua haujlwm ib txwm muaj, luv luv hauv cov xwm txheej hnyav. Cam khwb cia steel rooj vag li qub feem ntau siv cov hlau tsis muaj steel los yog cov hlau alloy nyuaj seals, uas yog qhov tseeb, hnav-tiv taus, thiab muaj kev sib khi ruaj khov nyob rau hauv qhov kub thiab txias, siab siab thiab nquag qhib thiab kaw. Lawv lub neej kev pabcuam yog 10-20 xyoo, thiab kev saib xyuas tsis tu ncua tuaj yeem txuas ntxiv mus.
Shanxi Jintai Hongye Casting & Forging Machinery Co., Ltd. yog nyob rau hauv Shanxi Province, Suav. Peb cov haujlwm tseem ceeb hauv kev lag luam suav nrog cov khoom siv hlau yeeb nkab fittings, cov raj xa dej, ntau yam li qub, thiab cov khoom siv manhole npog series. Rau cov ncauj lus kom ntxaws txog cov khoom lag luam lossis sib tham txog kev koom tes, thov hu rau peb txhua lub sijhawm:
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