1. Dab tsi yog cov hlau uas tsis muaj cua sov li cas?
Austenitic stainless hlau (e {. g}}}}}}}}}}}}}}}}}}}}, 316, 31):
Muaj cov nickel siab (ni) thiab chromium (E {{{}} g thiab 20% ni), uas yog ib qho oxide txheej los tawm tsam oxidation thiab scaling .
310s (tseem hu ua "tshav kub-resistant stainless hlau") yog tsim los rau huab cua sov ntev txog ~ 1,200℃(2,192℃f) {}}
321 (nrog titanium ntxiv) Tsis kam Carbide nag lossis ua kom haum rau cov ntawv thov nyiam tso cov tshuab.
Ferritic stainless hlau (e {. g .}}}, 4030):
Cov ntsiab lus Ni qis dua tab sis High Cr (11-17%), muab cov ntsuas kub nruab nrab (100 degree.
Martensitic stainless hlau (e {. g .}}}}, 420):
Txo cov cua sov tsis kam tshaj li Austenitic qib (txog li ~ 500℃/ 932 degree) tab sis tuaj yeem yog ib puag ncig muaj zog (e} pa}
Nag los-hardening stainless hlau (e . g.} pH):
Kub-kho kom sib npaug thiab xeb tsis kam, haum rau qhov kub thiab txias rau ~ 650℃/ e {}}} .
2. Dab tsi yog qhov zoo tshaj plaws stainless hlau rau cua sov?
310s (25cr -20 ni):
Tshwj xeeb cuam tshuam rau oxidation thiab carburization ntawm qhov kub thiab txias txog ~ 1,292℃(2,192℃(2,192℃(2,19, thiab cua txias cua {5}
347 (18Cr -10 ni-nb):
Niobium (NB) Txawb tawm cov alloy los tiv thaiv cov hmoov ciam ciam corrosion, zoo tagnrho rau welded Cheebtsam hauv cov roj cua lossis hluav taws xob hloov hluav taws xob {}}
Incoloy 800 (zoo ib yam li stainless hlau tab sis siab dua ni-cr):
Thaum siv cov npib tsib xee-raws li pawg nrog cov xim kub-tiv taus rau ~ 1,100℃(2,012℃(2,012 degree) hauv oxidizing ib puag ncig.
{{0 {}} Yuav ua li cas ua cov hlau stainless hlau tiv taus?
Alloying ntsiab:
Chromium (CR): Cov txheej txheej tuab tuab uas tiv thaiv oxidation (yuav tsum muaj ntau dua lossis sib npaug rau cov khoom lag luam tawm) {}}
Nickel (NI): Txav ruaj khov cov qauv Austenic, txhim kho ductility thiab kub-kub lub zog.
Molybdenum (mo): txhim kho kom muaj pitting thiab crevice corrosion ntawm qhov kub (e . {{{3} {3}
Titanium (ti) lossis niobium (nb): Tiv thaiv carbide nag lossis tsis muaj zog ntawm alloy) hauv qib zoo li 321 thiab 347.
Kev Kho Cua Sov:
Daws annealing: Cua sov mus ~ 1,050-1650℃(1,102℃rau homogenize tus qauv thiab txhim kho oxidation tiv taus.
Nag lossis daus tawv: thov rau qib zoo li 17-4 p kom txhim kho lub zog yam tsis muaj kev cuam tshuam ua kom muaj zog {}}
{{0 {}} Puas yog txhua tus stainless hlau ua kom sov zoo?
Cov qib cua sov: Austenitic steels (300 series) thiab high-s ferritic steels yog qhov ntsuas kub (}}}
Txwv kub ua rau: Martensitic steels (400 Series) poob lub zog saum toj no, thiab qis-fl ferritic cov qib yuav teev lossis siab dua cov cua sov.
Cov kev xav tseem ceeb:
Zam txhob siv cov hlau tsis muaj zog hauv huab cua tsis muaj qhov ua kom pom tseeb (316L yog tsawg dua 310
5. Yuav ua li cas tiv thaiv kev sib tw stainless hlau los ntawm overheating?
Xaiv qib qib: phim cov hlau lub tshav kub tsis kam rau daim ntawv thov (e {}}}}}} {{.
Kev tsim qauv cua sov:
Teeb tsa txias nta (e . g}}, fins}, fins}, fins, cua sov .
Zam dhau cov khoom cua sov; Faib cov neeg mob hnyav los ntawm kev tsim qauv .
Nto Kev Tiv Thaiv:
Thov kev tiv thaiv kev tiv thaiv (e {{. g}, ceramic}, ceramic lossis refractory tiav) kom txo oxidation thiab scaling .
Txwv tsis pub ua hauj lwm:
Saib xyuas qhov kub thiab txias hauv lub sijhawm tiag tiag thiab txwv raug kub kom dhau ntawm cov hlau txoj kev muaj peev xwm.
Txij Nkawm:
Tshem tawm cov nplai lossis cov khoom xeb tsis tu ncua, raws li cov tsim muaj peev xwm ntxiab cua sov thiab nrawm degradation .
