Tshwj xeeb steel, uas yog, tshwj xeeb steel, yog hom tseem ceeb tshaj plaws ntawm cov hlau siv nyob rau hauv feem ntau kev lag luam ntawm lub teb chaws kev lag luam, xws li machinery, tsheb, tub rog kev lag luam, tshuaj, khoom siv hauv tsev, nkoj, tsheb thauj mus los, railways thiab cov lag luam tawm tshiab.Cov hlau tshwj xeeb yog lub cim tseem ceeb los ntsuas seb lub teb chaws puas tuaj yeem dhau los ua lub zog steel.
Lub hom phiaj tshwj xeeb steel yog hais txog lwm yam khoom siv uas ua haujlwm nyob rau hauv cov xwm txheej tshwj xeeb thiab muaj cov kev cai tshwj xeeb rau cov hlau, xws li lub cev, tshuaj, tshuab thiab lwm yam khoom.
Tshwj xeeb kev ua tau zoo steels kuj yog tshwj xeeb zoo alloy steels.Cov hlau no xa mus rau cov hlau nrog electromagnetic, optical, acoustic, thermal thiab electrochemical ua thiab ua haujlwm.Feem ntau siv yog stainless hlau, kub-resistant steel, hluav taws xob silicon steel, hluav taws xob ntshiab hlau thiab ntau yam precision alloys (mos magnetic alloys, xws li magnetic alloys, elastic alloys, expansion alloys, thermal double alloys, kuj alloys, thawj roj teeb cov ntaub ntawv, thiab lwm yam .)..
Stainless hlau yog lub npe rau nws zoo corrosion kuj, thiab nws lub ntsiab alloying Cheebtsam yog chromium thiab nickel.Chromium muaj cov tshuaj muaj peev xwm siab thiab tuaj yeem tsim cov xim tuab thiab tawv ua kom huv si hauv nruab nrab oxidizing;Tsis tas li ntawd, thaum cov ntsiab lus chromium tshaj 11.7%, lub peev xwm electrode ntawm cov hlau tuaj yeem nce ntxiv, yog li tiv thaiv tau oxidation ntxiv ntawm cov hlau.Nickel kuj yog tus pab txhawb nqa.Qhov sib ntxiv ntawm npib tsib xee rau chromium hlau tuaj yeem txhim kho corrosion kuj ntawm cov hlau tsis muaj oxidizing media.Thaum cov ntsiab lus ntawm chromium thiab npib tsib xee yog tas li, qhov qis dua cov ntsiab lus ntawm cov hlau, qhov zoo dua qhov corrosion kuj.
Lub corrosion kuj ntawm stainless hlau kuj muaj feem xyuam rau lub uniformity ntawm lub matrix qauv.Thaum ib qho kev daws teeb meem ntawm cov hlau tsis sib xws, qhov corrosion ntawm cov hlau hauv electrolyte tuaj yeem txo tau zoo.
Austenitic stainless hlau yog chromium-nickel series stainless hlau nrog ib tus qauv austenitic.Nws muaj qhov zoo corrosion kuj, tsis tshua muaj kub toughness, siab ua thiab vuam txheej txheem, uas tsis yog-sib nqus, thiab yog dav siv raws li tsis tshua muaj kub steel thiab tsis kub steel ua hauj lwm nyob rau hauv corrosive media.Cov hlau tsis muaj hlau nplaum;ferritic stainless hlau tsuas yog muaj chromium, uas dhau los ntawm kev hloov pauv thaum lub sijhawm cua sov thiab txias, thiab yog cov khoom siv hnav-tiv taus hauv kev lag luam nitric acid thiab nitrogen chiv;martensitic stainless hlau muaj cov ntsiab lus carbon siab thiab zoo hardenability.Cov qauv martensitic tau txais.Cov hlau no muaj qhov zoo toughness thiab cov ntsiab lus carbon tsawg, thiab tuaj yeem siv los ua qhov cuam tshuam-tiv taus uas ua haujlwm hauv cov xov xwm corrosive;high carbon yog siv los ua cov springs, bearings, phais hniav, thiab lwm yam .;nws muaj ob-theem sib xyaw qauv ntawm austenite thiab ferrite.Stainless hlau ntawm matrix yog duplex stainless hlau, uas muaj qhov zoo ntawm lub zog siab, zoo toughness, thiab tsis kam mus rau intergranular corrosion.Ntawm lawv, 00Cr18Ni5Mo3Si2 steel yog tsuas yog siv nyob rau hauv kev tsim cov cua kub exchangers thiab condensers nyob rau hauv cov roj refining, chiv, ntawv, roj av, tshuaj thiab lwm yam lag luam, thiab 0Cr26Ni5Mo2 yog siv nyob rau hauv lub tsim ntawm seawater corrosion khoom;molybdenum, niobium, txhuas, tooj liab thiab lwm yam nyob rau hauv lub hardened theem ua rau lawv Tom qab quenching thiab laus kev kho mob, nws muaj zog thiab toughness, thiab yog tsuas yog siv los tsim springs, washers, bellows, thiab lwm yam.
Hluav taws xob hlau, tseem hu ua silicon steel, yog cov hlau-silicon binary alloy nrog cov ntsiab lus carbon tsawg dua 0.05%.Nws muaj cov yam ntxwv ntawm cov hlau me me poob, me me coercive quab yuam, siab sib nqus permeability thiab sib nqus induction siv, thiab yog ib qho ntawm cov khoom siv mos sib nqus (rau lub sij hawm luv luv lossis rov ua dua magnetization).Lub ntsiab tseem ceeb cuam tshuam rau kev ua haujlwm ntawm cov hlau hluav taws xob yog cov tshuaj lom neeg muaj pes tsawg leeg thiab cov qauv.Silicon muaj qhov cuam tshuam loj tshaj plaws ntawm cov khoom sib nqus ntawm cov hlau hluav taws xob.Thaum 3.0% Si ntxiv rau cov hlau ntshiab, qhov sib nqus permeability yog nce los ntawm 1.6-2 zaug, hysteresis poob yog txo los ntawm 40%, qhov resistivity yog nce 4 zaug (uas tuaj yeem txo qhov poob tam sim no), thiab tag nrho. hlau poob yog txo.Doubled, tab sis lub hardness thiab lub zog kuj tseem ceeb heev ntxiv.Feem ntau cov ntsiab lus silicon tsis tshaj 4.5%, txwv tsis pub nws nyuaj dhau thiab ua haujlwm nyuaj.Lub xub ntiag ntawm teeb meem impurities (N, C, S, O, thiab lwm yam) yuav ua rau lub lattice distortion ntawm cov hlau, ua rau kom muaj kev ntxhov siab, thiab cuam tshuam cov txheej txheem magnetization, yog li cov ntsiab lus ntawm impurities yuav tsum nruj me ntsis tswj.
Silicon steel feem ntau yog siv rau hauv kev lag luam hluav taws xob xws li lub cev muaj zog, hloov pauv, cov khoom siv hluav taws xob, thiab cov cuab yeej hluav taws xob.Feem ntau yog dov rau hauv 0.3, 0.35, 0.5 nplooj ntawv, suav nrog kub thiab txias dov.txias dov
Post lub sij hawm: Oct-31-2022