Qhov feem ntau kub-resistant stainless hlau
Cov hlau tsis muaj cua sov tshaj plaws yog ua los ntawm cov khoom siv 310S.
310S muaj lub zog nkag tau zoo, tuaj yeem ua haujlwm ntawm qhov kub thiab txias, thiab muaj qhov kub thiab txias tsis kam. Yog hais tias nws yog purely tshav kub resistant, nws yuav tsis pub tshaj 1300.
Zoo oxidation tsis kam thiab siab creep lub zog ntawm qhov kub thiab txias, nrog rau qhov kub siab tshaj plaws ntawm 1200 degree thiab kev siv kub ntawm 1150 degree. Feem ntau yog siv nyob rau hauv industrial cua sov furnaces.
310S tseem hu ua 0Cr25Ni20. Vim tias qhov feem pua ntawm cov chromium thiab chromium nickel stainless hlau muaj qhov zoo oxidation tsis kam thiab corrosion kuj, 310S muaj zog nkag tau zoo dua, tuaj yeem ua haujlwm ntawm qhov kub thiab txias, thiab muaj qhov kub thiab txias. Nws qhov kub siab tshaj plaws yog 1200 degree, thiab nws tsis tshua muaj ntsuas.
904L stainless hlau, zoo li lwm yam siv Cr-Ni austenitic steels, muaj cov khoom txias thiab kub ua haujlwm zoo. Thaum lub sij hawm kub forging, qhov kub siab tshaj plaws cua sov tuaj yeem ncav cuag 1180 degrees Celsius, thiab qhov tsawg kawg nkaus nres forging kub tsis tsawg dua 900 degrees Celsius. Qhov kub ntawm cov hlau no tuaj yeem ua tiav ntawm 1000-1150 degrees Celsius. Cov txheej txheem kev kho cua sov rau cov hlau no yog 1100 txog 1150 degrees Celsius, thiab nws tau txias sai sai tom qab cua sov. Txawm hais tias 904L stainless hlau tuaj yeem welded siv cov txheej txheem vuam, qhov tsim nyog tshaj plaws vuam txoj kev yog phau ntawv arc vuam thiab tungsten argon arc vuam.
Thaum phau ntawv arc vuam siv los vuam daim hlau tsis loj dua 6 hli, lub electrode txoj kab uas hla yuav tsum tsis txhob loj dua 2.5 hli; Thaum lub phaj thickness ntau dua 6 hli, lub electrode txoj kab uas hla yog tsawg dua 3.2 hli. Thaum tom qab vuam kev kho cua sov yog xav tau, nws tuaj yeem ua kom sov ntawm 1075 txog 1125 degrees Celsius thiab txias sai rau kev kho mob.
Thaum siv tungsten argon arc vuam, cov hlau muab tub lim tuaj yeem siv nrog tib lub vuam pas nrig. Tom qab welding, lub weld yuav tsum tau txais acid pickling thiab passivation kev kho mob.
Alloy hlau uas tiv taus qhov kub siab tshaj 310s
Tam sim no, tsis muaj stainless hlau uas tiv taus qhov kub siab tshaj 310s. 310s stainless hlau muaj oxidation zoo heev thiab corrosion kuj, muaj peev xwm tiv taus kub, mus txog 1200 degrees Celsius, tsis tu ncua siv kub ntawm 1150 degrees Celsius, thiab feem ntau yog siv nyob rau hauv industrial cua sov furnaces.
309 stainless hlau kuj muaj qhov kub thiab txias tsis kam, nrog qhov kub siab tshaj plaws ntawm 980 degree. 309s kuj tseem muaj cov cua kub zoo heev thiab oxidation tsis kam.
Stainless hlau yog lub ntsiab lus ntawm stainless hlau thiab acid resistant steel. Raws li cov ntsiab lus hauv GB / T20878-2007, stainless hlau yog hais txog cov hlau uas muaj xeb thiab corrosion kuj raws li nws cov yam ntxwv tseem ceeb, nrog cov ntsiab lus chromium tsawg kawg yog 10.5 feem pua thiab cov ntsiab lus carbon tsis ntau tshaj 1.2 feem pua.
Stainless hlau muaj kev tiv thaiv corrosion zoo, tuaj yeem tiv taus qhov tsis muaj zog corrosive media xws li huab cua, chav, thiab dej, thiab kuj muaj qhov nyuaj siab.