Hmoov metallurgy iav thiab cov khoom siv kho kom haum, raws li cov khoom sib txawv ntawm cov khoom yuav tsum tau ua, zoo ib yam li kev kho cua sov. Tom qab induction cua sov thiab quenching, lawv yuav tsum tau tempered kom tsis txhob muaj kev ntxhov siab nyob rau hauv thiab quenching brittleness, stabilize tus qauv, thiab ua kom tiav cov khoom uas yuav tsum tau. Tsawg kub tempering feem ntau yog ua. Peb hom induction tempering, furnace tempering thiab self-tempering yog feem ntau siv nyob rau hauv ntau lawm.
①Induction tempering Lub quenched workpiece yog re-inductively rhuab kom ua tiav lub hom phiaj ntawm tempering, uas yog, tom qab lub workpiece yog rhuab los ntawm inductor thiab tsuag-txias, induction cua sov thiab tempering yuav tsum tau ua tam sim ntawd. Vim lub sij hawm cua sov luv, lub microstructure muaj ib tug loj dispersion. Nws tuaj yeem tau txais kev hnav tsis kam thiab muaj kev cuam tshuam siab, thiab lwm yam. Nws yog tshwj xeeb tshaj yog haum rau tempering ntawm shafts, tes tsho thiab lwm qhov chaw uas tsis tu ncua rhuab thiab quenched.
②Tempering nyob rau hauv lub cub tawg Lub workpiece yog tempered nyob rau hauv lub qhov cub, roj rauv los yog lwm yam khoom siv tom qab high-frequency quenching. Lub tempering kub yuav tsum tau txiav txim raws li qhov yuav tsum tau hardness thiab kev ua tau zoo, thiab tempering kub thiab sij hawm, raws li high carbon steel cov cuab yeej thiab ntsuas cov cuab yeej, nruab nrab carbon steel los yog nruab nrab carbon alloy steel gears thiab spline shafts, alloy cam khwb cia hlau camshafts thiab lwm yam. , yuav tsum tau qis qis qis qis qis, feem ntau siv immersion txias hauv dej los yog dej. Feem ntau ntawm lawv yog tempered ntawm 150 ~ 250 ℃, thiab lub sij hawm yog feem ntau 45 ~ 120min. Nws yog feem ntau yog siv rau tempering ntawm workpieces nrog me me, complex zoo, nyias phab ntsa thiab ntiav hardened txheej los xyuas kom meej lub siab hardness thiab hnav tsis kam ntawm qhov chaw ntawm qhov chaw. Xav tau.
③ Tempering tus kheej tsis txias tom qab txau los yog immersion txias, thiab siv cov cua sov uas twb muaj lawm nyob rau hauv lub quenched workpiece tom qab quenching kom lub quenching cheeb tsam nce mus rau ib tug tej yam kub thiab txias dua kom tau raws li qhov yuav tsum tau ntawm tempering, thiab nws kub yuav tsum siab tshaj qhov tempering kub. hauv qhov cub. Feem ntau, sab hauv ntawm qhov chaw muaj qhov kub siab dua tom qab txias rau 3 mus rau 10 vib nas this. Raws li lub sij hawm rau tus kheej-tempering, qhov loj yog 6s thiab cov me me yog 40s kom tiav tus kheej-tempering.