1. quenching kev kho mob ntawm lub zog quab yuam caij nplooj ntoos hlav
Kev kho lub caij nplooj ntoos hlav quenching yog hais txog kev tso tawm ntawm tensile kev ntxhov siab sib npaug li 20% ~ 40% ntawm lub zog compressive ntawm ob sab ntawm cov hlau tsis muaj steel hlau, cov hlau tsis muaj steel hlau nyob rau hauv qhov kev txiav txim ntawm tensile quab yuam ua rau ib qho kev soj ntsuam ntawm cov kab mob. , cov kab dislocation txav, lub sijhawm no, cov spatio solute molecules (C thiab N molecules) diffuse mus rau sab nraud ntawm cov kab dislocation. los ntawm qhov kub thiab txias, thiab txav dislocation yog "pinned". Lub diffusely yaj cementite nyob rau hauv cov txheej txheem quenching muab ntau cov ntsiab lus pinning, uas ua rau lub dislocation "pinning" ntau tiav thiab txaus, txhim kho cov yas deformation tiv thaiv ntawm stainless hlau hlau, thiab txhim kho elastic txo cov yam ntxwv ntawm stainless hlau hlau.
2. Sib nqus induction caij nplooj ntoos hlav cua sov kho
Sib nqus induction caij nplooj ntoos hlav cua kub ceev ceev ceev, qhov saum npoo cua oxidation ntawm stainless hlau hlau yog lub teeb, tsis yooj yim rau carburizing, lub siv lead ua kuj optimized, zus tau tej cov roj kub kev kho mob - quenched stainless hlau hlau nrog high-frequency cua sov. Cov khoom siv rau hauv lub caij nplooj ntoos hlav compression, muaj zog ductility nyob rau hauv static load, load yam ntxwv, elastic txo cov yam ntxwv yog zoo heev, nyob rau hauv lub caij nplooj ntoos hlav ntau yam Performance index qhov tseem ceeb los tswj tus thawj theem ntawm specifications, net hnyav maj mam txo los ntawm 10% ~ 20%. Nws yog cov cuab yeej hlau uas muaj vanadium thiab niobium, thiab tsuas yog los ntawm kev siv qhov kub siab dua ferrite los ua vanadium thiab niobium txaus yaj, qhov kev cia siab ntawm quenching thiab theem nrab nyuaj hauv qab tuaj yeem tau txais. Raws li cov kev qhia tshwj xeeb cua sov, qhov kub ntawm ferrite siab dhau lawm, cov hlau tsis muaj steel hlau siv lead ua coarsen, thiab cov huab cua oxidation thiab carburizing kuj hnyav heev, uas ua rau muaj kev phom sij rau kev ua haujlwm qaug zog. Thaum lub tshuab hluav taws xob induction cua sov ncav cuag 800 ~ 1000 degree, stainless hlau xaim tsis yooj yim rau carburize, huab cua oxidation hnyav dua thiab siv lead ua coarsening. Yog li, electromagnetic induction cua sov tuaj yeem siv tag nrho cov txiaj ntsig ntawm cov cuab yeej hlau uas muaj vanadium thiab niobium.
