General quenching
Ua ntej, cia peb qhia rau koj tias kev kho mob photothermal thiab tempering tuaj yeem muab faib ua quenching thiab photoannealing. General quenching yog hais txog quenching yam tsis muaj kev saib xyuas huab cua, xws li siv lub tshuab hluav taws xob txuas ntxiv ua kom sov los ntawm hluav taws. Hom quenching ib puag ncig no yuav tsum tau khaws thiab passivated kom tshem tawm cov huab cua oxidation, tawv nqaij yaig, tsis zoo glossiness, milky dawb, tsis muaj ci, thiab tsis zoo ductility uas tshwm sim rau saum npoo ntawm cov phab ntsa tuab stainless hlau kav thaum lub sij hawm tag nrho cov txheej txheem quenching.
Bright annealing
Muaj peb hom. Ib txoj kev yog quenching nyob rau hauv tag nrho hydrogen txij nkawm, qhov twg hydrogen los ntawm electrolysis los yog thib peb-tog txoj kev, nrog siab purity thiab tsawg to taub cov ntsiab lus; Lwm hom yog ammonia dissolution. Lub decomposed vapor yog qhuav thiab nkag mus rau hauv lub cub tawg. Raws li cov roj tu, nws cov purity thiab cov txheeb ze to taw tes yog qhov tsis muaj zog. Me me puas paub tias qhov sib txawv ntawm ob txoj kev no nyob ntawm hydrogen siv los ua cov pa roj. Cov phab ntsa ntawm lub cub tawg muaj cov qauv tshwj xeeb nrog cov muffle sab hauv. Cov nplaim taws ua ntej heats li muffle, thiab tom qab ntawd hloov cov cua sov raws li thermal conductivity. Hloov nws mus rau cov yeeb nkab stainless hlau los tiv thaiv huab cua oxidation ntawm stainless hlau yeeb nkab. Yog li ntawd, stainless hlau kav tom qab lub teeb quenching tsis xav tau acid pickling thiab passivation. Yog li ntawd, lub teeb quenched stainless hlau kav yog ci dua thiab muaj zog corrosion kuj dua li cov kav dej stainless hlau.
Nyob rau hauv kev tsim cov phab ntsa tuab stainless hlau kav rau ib puag ncig kev huv, vim muaj kev phom sij ntawm ntau yam xws li kev tswj ntau lawm, kev ua haujlwm zoo, kev siv tshuab, thiab cov khoom siv raw khoom, seamless steel kav yuav muaj teeb meem zoo thaum lub sij hawm ci quenching, uas ua rau muaj kev phom sij. qhov tseeb ntawm cov yeeb nkab ci ci. Yog li, dab tsi yog cov ntsiab lus ntawm quenching tuab phab ntsa stainless hlau dej kav uas ua rau muaj kev hem thawj rau ib puag ncig kev nyiam huv?
1. Muaj kev nyab xeeb ntawm kev tswj huab cua
Siv cov kua chlorine dissolution roj raws li kev saib xyuas huab cua, cov tshuaj chlorine synthesis tshwm sim saum 800 degree. Restore lub vapor mus rau 2NH3 → 3H2+N2 hydrogen, tswj cov kua chlorine dissolution cua rau cov vapor, thiab ua rau saum npoo ntawm welded steel yeeb nkab du.
2. Kev ntsuas cua nruj ntawm cov phab ntsa ntawm lub cub tawg
Txhawm rau kom ntseeg tau qhov ci ntsa iab ntawm ib puag ncig tus phooj ywg tuab phab ntsa stainless hlau cov kav dej, lub qhov cub ci ntsa iab yuav tsum tiv thaiv cov pa sab nraud los ntawm kev nkag mus thiab kev sib cais huab cua yuav tsum tau nqa tawm.
3. Kev laus kho kub
Lub tempering kub ntawm kev kho cua sov yog ib qho tseem ceeb tshaj plaws tsis nyob rau hauv heterogeneous txoj kev kho. Siab dhau lossis qis dhau yuav ua rau muaj kev phom sij rau qhov zoo ntawm cov kav dej. Yog tias qhov kub thiab txias dhau lawm, cov txheej txheem rau vuam steel kav yuav thicken thiab lawv cov yam ntxwv yuav txo. Yog tias qhov kub thiab txias qis dhau lawm, cov tshuaj saturated yuav tsis yooj yim rau tshem tawm tag nrho, thiab kev ntxhov siab sab hauv yuav tsis yooj yim tshem tawm tag nrho. Xaiv 1080 degree ± 10 degree thiab siv cov txheej txheem rwb thaiv tsev kom zoo rau cov cementite.
4. Tswj huab cua siab
Txhawm rau kom tsis txhob muaj cov dej me me, kev saib xyuas ntawm cov chav hauv lub qhov cub yuav tsum tswj kom muaj lub siab zoo. Yog hais tias nws yog hydrogen txij nkawm vapor, nws yog feem ntau hais kom siab tshaj 20kbar.
5. Chav nyob hauv qhov cub
Kev sib xyaw ntau dhau ntawm qhov cub hauv qhov cub ua rau cov cua puas tsuaj thiab ua rau muaj kev hem thawj rau ib puag ncig kev nyiam huv. Lub quenching xim ntawm tuab phab ntsa stainless hlau kav dej kuj muaj teeb meem. Ntawm qhov tod tes, dej vapor los ntawm cov khoom siv raw ntawm phab ntsa rauv, thiab ntawm qhov tod tes, cov dej stains ntxiv ntawm cov kav hlau stainless feem ntau yog cov ntsiab lus uas ua rau muaj kev hem thawj rau ib puag ncig kev nyiam huv thiab chromaticity ntawm tuab phab ntsa stainless hlau kav. . Nyob rau hauv ib txwm muaj xwm txheej, ib puag ncig tu cev tuab phab ntsa stainless hlau dej kav yuav ci heev tom qab quenching.
