Covslurry twj tso kua misyog lub twj tso kua mis uas xa cov khoom sib xyaw thiab dej. Yog li ntawd, qhov nruab nrab yuav abrasive rau qhov ntws ntawm slurry twj tso kua mis. Yog li ntawd, lub slurry twj tso kua mis ntws qhov yuav tsum tau ua los ntawm cov ntaub ntawv hnav-resistant.
Cov khoom siv hlau feem ntau siv rau cov twj slurry tau muab faib ua hlau cam khwb cia hlau, hlau hlau, siab chromium cam khwb cia hlau, stainless hlau, thiab lwm yam. High chromium cam khwb cia hlau yog lub thib peb tiam ntawm hnav-resistant khoom tsim tom qab zoo tib yam dawb cam khwb cia hlau thiab nickel hard cam khwb cia hlau. Vim yog cov yam ntxwv ntawm cov qauv ntawm high chromium cam khwb cia hlau, nws muaj ntau dua toughness, siab kub zog, tshav kub tsis kam, thiab hnav tsis kam tshaj li qub cam khwb cia hlau. High chromium cam khwb cia hlau tau raug qhuas tias yog cov khoom siv tiv thaiv zoo tshaj plaws nyob rau hauv lub sijhawm tam sim no, thiab nws tau siv dav hauv ib hnub.
Tuam Tshoj lub teb chaws tus qauv rau hnav-resistant dawb cam khwb cia hlau (GB/T8263) stipulates qib, muaj pes tsawg leeg, hardness, txheej txheem kev kho cua sov, thiab siv cov yam ntxwv ntawm siab chromium dawb cam khwb cia hlau.
Tus txheej txheem tswj hwm rau siab chromium cam khwb cia hlau hauv Tebchaws Meskas yog ASTMA532M, United Kingdom BS4844, Lub Tebchaws Yelemees DIN1695, thiab Fabkis NFA32401. Russia tsim 12-15% Cr, 3-5.5% Mn thiab 200mm phab ntsa thickness pob zeb liners nyob rau hauv lub qub Soviet Union, thiab tam sim no siv lub ҐOCT7769 tus qauv.
Cov ntaub ntawv tseem ceeb siv rau qhov ntws ntawm slurry twj hauv tsev thiab txawv teb chaws yog stainless hlau, siab chromium cam khwb cia hlau, thiab nickel hard cam khwb cia hlau. High chromium cam khwb cia hlau yog cov khoom siv zoo tshaj plaws rau cov khoom ntws ntawm slurry twj. Los ntawm kev hloov kho lossis xaiv cov qib carbon thiab chromium cov ntsiab lus, qhov kev siv zoo tshaj plaws ntawm cov khoom ntws hauv cov kev lag luam thiab cov mining sib txawv tuaj yeem tau txais.
High chromium cam khwb cia hlau yog lub ntsiab lus ntawm siab chromium dawb los tiv thaiv hnav cam khwb cia hlau. Nws yog cov khoom siv los tiv thaiv kev hnav nrog kev ua tau zoo thiab kev saib xyuas tshwj xeeb; nws muaj ntau dua hnav tsis kam tshaj cov hlau alloy thiab ntau dua toughness thiab lub zog dua li dav hlau cam khwb cia hlau. Nyob rau tib lub sijhawm, nws kuj muaj qhov ua haujlwm zoo rau qhov kub thiab txias thiab corrosion, ua ke nrog kev tsim khoom yooj yim thiab tus nqi nruab nrab, thiab paub tias yog ib qho zoo tshaj plaws los tiv thaiv cov khoom siv niaj hnub no.
Tam sim no A series ntawm high chromium cam khwb cia hlau hnav-resistant cov ntaub ntawv feem ntau siv:
Cov twj slurry ua los ntawm cov khoom siv A05 (Cr26) yog cov khoom siv dav tshaj plaws hauv kev lag luam mining. Lub microstructure ntawm high chromium alloy A05 qhia tau hais tias nws muaj zog eutectic chromium carbides nyob rau hauv ib tug tag nrho hardened marten-site matrix. Hauv kev siv slurry twj tso kua mis qhov twg ob qho tib si abrasive thiab corrosive tab sis abrasion dominates, qhov kev ua tau zoo ntawm cov khoom no zoo dua li lwm cov hlau cam khwb cia hlau.
Txawm hais tias cov khoom ntub dej ua los ntawm A07 (Cr15Mo3) cov khoom muaj kev hnav zoo dua, hardness zoo dua, thiab kev pab lub neej ntev dua li A05, lawv cov nqi yog ob npaug ntawm A05, yog li tus nqi ua haujlwm qis dua thiab qhov kev siv me me.
A49 (Cr30) yog qhov tseem ceeb ntawm high chromium qis carbon dawb cam khwb cia hlau. Lub microstructure yog hypoeutectic thiab muaj eutectic chromium carbides hauv austenite / martensite matrix. Cov ntsiab lus carbon ntawm high chromium A49 yog qis dua li ntawm high chromium A05. Muaj ntau chromium hauv matrix. Nyob rau hauv ib puag ncig acidic tsis muaj zog, siab chromium A49 muaj kev tiv thaiv corrosion ntau dua li siab chromium A05.
Txog tam sim no, cov lus hais saum toj no yog cov khoom siv hlau feem ntau siv hauvslurry twj tso kua mis tsum. Raws li qhov tshwj xeeb ntawm kev thauj khoom nruab nrab, peb yuav xaiv cov khoom tsim nyog tshaj plaws.
Post lub sij hawm: Sep-17-2021