Dab tsi yog quenching?
Kev kho quenching yog txheej txheem kev kho cua sov uas cov hlau nrog cov ntsiab lus ntawm 0.4% yog rhuab mus rau 850T thiab txias sai.Txawm hais tias quenching nce hardness, nws kuj nce brittleness.Feem ntau siv quenching media xws li dej ntsev, dej, ntxhia roj, cua, thiab lwm yam. quenching tuaj yeem txhim kho cov tawv tawv thiab hnav tsis kam ntawm cov hlau ua haujlwm, thiab yog siv dav hauv ntau yam cuab yeej, pwm, ntsuas cov cuab yeej, thiab cov khoom hnav-tiv taus (xws li iav, rollers, carburized qhov chaw, thiab lwm yam).Los ntawm kev sib xyaw quenching nrog tempering ntawm qhov sib txawv ntawm qhov kub thiab txias, lub zog thiab qaug zog ntawm cov hlau tuaj yeem txhim kho tau zoo, thiab kev sib koom tes ntawm cov khoom no tuaj yeem ua tiav kom tau raws li kev siv sib txawv.
Lub hom phiaj ntawm quenching steel yog dab tsi?
Lub hom phiaj ntawm quenching yog hloov undercooled austenite rau hauv martensite los yog bainite kom tau martensite los yog bainite qauv, thiab tom qab ntawd koom tes nrog tempering ntawm qhov sib txawv ntawm qhov kub thiab txias los txhim kho qhov rigidity, hardness, hnav tsis kam, qaug zog, thiab toughness ntawm cov hlau, yog li ua tau raws li qhov sib txawv ntawm qhov kub thiab txias. sib txawv siv yuav tsum tau ntawm ntau yam mechanical qhov chaw thiab cov cuab yeej.Nws tseem tuaj yeem ua tau raws li lub cev thiab tshuaj lom neeg tshwj xeeb ntawm qee cov hlau tshwj xeeb, xws li ferromagnetism thiab corrosion resistance, los ntawm quenching.
High zaus quenching ntawm S45C steel
1. High zaus quenching feem ntau yog siv rau nto quenching ntawm industrial hlau qhov chaw.Nws yog txoj kev kho cua sov hlau uas ua rau muaj qee qhov cuam tshuam tam sim no rau ntawm qhov chaw ntawm cov khoom ua haujlwm, ua kom sov sai ntawm qhov chaw, thiab tom qab ntawd sai sai quenches.Cov khoom siv cua sov induction yog hais txog cov cuab yeej siv tshuab uas ua rau cov cua sov ntawm cov khoom ua haujlwm rau saum npoo quenching.Lub hauv paus ntsiab lus ntawm induction cua sov: Cov khoom ua haujlwm tau muab tso rau hauv ib qho inductor, uas feem ntau yog lub raj tooj liab nrog cov khoom siv nruab nrab zaus lossis lub zog AC siab (1000-300000Hz lossis siab dua).Lub cim ntawm ib qho chaw sib nqus sib nqus ua rau muaj qhov cuam tshuam tam sim no ntawm tib zaus hauv qhov chaw ua haujlwm.Qhov no induced tam sim no yog unevenly faib rau saum npoo, muaj zog ntawm qhov chaw, tab sis kuj tsis muaj zog nyob rau hauv, mus txog 0 ntawm qhov chaw.Los ntawm kev siv cov nyhuv ntawm daim tawv nqaij, qhov saum npoo ntawm lub workpiece tuaj yeem ua kom sov sai, thiab nyob rau hauv ob peb feeb, qhov kub ntawm qhov chaw tuaj yeem nce mus rau 800-1000 ℃, nrog rau qhov me me ntawm qhov nruab nrab kub.Qhov siab tshaj plaws deg hardness ntawm 45 steel tom qab high-frequency quenching tuaj yeem ncav cuag HRC48-53.Tom qab high-frequency quenching, hnav tsis kam thiab practicality yuav ho nce.
Qhov sib txawv ntawm quenched thiab tsis quenched 2.45 steel: Nws muaj qhov sib txawv tseem ceeb ntawm quenched thiab tsis quenched 45 steel, feem ntau vim tias quenched thiab tempered steel tuaj yeem ua kom muaj zog dua thiab muaj zog txaus.Lub hardness ntawm hlau ua ntej quenching thiab tempering yog nyob ib ncig ntawm HRC28, thiab lub hardness tom qab quenching thiab tempering yog nyob nruab nrab ntawm HRC28-55.Feem ntau, cov khoom ua los ntawm cov hlau no yuav tsum muaj cov khoom siv kho tshuab zoo, uas yog, kom muaj lub zog siab thaum tseem muaj cov yas zoo thiab tawv.
Post lub sij hawm: Nov-23-2023