Dab tsi yog qhov txawv ntawm kev kho tshuaj thiab quenching?

Nyob rau hauv lub teeb ntawm peb cov kev sib tham ua ntej ntawm cov txheej txheem kev kho mob thiab cov hardness zog ntawm kub khiav stainless hlau bolts, ob qhov sib txawv hauv cov hauv qab no:

I. Ntau Lub Hom Phiaj Central

Kev Kho Mob: Dissolves cov ntsiab lus alloying los tsim cov tshuaj supersaturated, softening cov khoom, txhim kho corrosion kuj, thiab npaj rau kev laus tom ntej.

Quenching: Hloov cov theem austenitic mus rau theem martensitic kom txhim kho qhov hardness thiab hnav tsis kam ntawm cov khoom.

II. Khoom siv (Lwm yam)

Kev Kho Mob: Feem ntau siv tau rau cov hlau tsis yog{0}}ferrous hlau, suav nrog aluminium alloys thiab austenitic stainless hlau. Tsis muaj allotropic transformation tshwm sim thoob plaws hauv kev kho mob.

Quenching: Feem ntau yog rau carbon steel thiab alloy steel, los ntawm martensitic theem hloov rau ntxiv dag zog.

III. Ntau yam txheej txheem tom ntej

Tom qab Kev Kho Mob: Feem ntau ua raws li tam sim ntawd los ntawm kev laus kev kho mob kom ua rau lub zog ntxiv zog thiab ua kom lub zog zaum kawg.

Tom qab Quenching: Yuav tsum tau tempered kom tshem tawm cov nro sab hauv thiab tau txais qhov sib npaug ntawm hardness thiab toughness. Qee qhov xwm txheej, kev daws teeb meem ntawm aluminium alloys kuj tseem hu ua "kev daws teeb meem quenching", tab sis nws txawv ntawm lub tswv yim los ntawm quenching ntawm hlau.