Quenching ntawm cov hlau yog kom ua kom sov cov hlau mus rau qhov kub tseem ceeb AC3A (sub-eutectic steel) lossis tag nrho ntawm cov Austenitization, thiab tom qab ntawd sai dua dua li tus nqi txias uas yog tus ua kom txias rau ms hauv qab no (lossis ms nyob ze ntawm Marticousite A (lossis Bainite) Kev Kho Cua Sov txheej txheem. Feem ntau kuj tau txhuas alloys, tooj liab alloys, titanium alloys, tempered iav thiab lwm yam khoom txias kev pab cuam tshuam kev kho mob kub hu ua quenching ".
Lub hom phiaj ntawm quenching:
(1) Txhim kho cov khoom siv tshuab ntawm cov hlau mus rau hauv cov khoom lossis seem.
(2) txhim kho cov khoom siv lossis tshuaj lom neeg ntawm qee cov hlau tshwj xeeb
Quenching txoj kev: Feem ntau ib-kua kub quenching, ob-kua hluav taws, graded quenching, moded quothermal quenching, nyob hauv zos quenching thiab lwm yam.
Tempering yog cov hlau ua kom tawg rau hauv cov khoom siv lossis ib qho kev kho kom sov, tom qab kev ua haujlwm tam sim ntawd tom qab quenching tam sim no rau kev kho cua sov Ntawm cov txheej txheem kawg, thiab yog li cov txheej txheem sib koom ua ke ntawm quenching thiab tempering yog hu ua kev kho zaum kawg.
Lub luag hauj lwm ntawm tempering yog rau:
(1) txhim kho kev ruaj ntseg ntawm lub koom haum, yog li ntawd qhov ua haujlwm tsis muaj nyob hauv lub koom haum ntawm kev hloov pauv, yog li ntawd cov khoom worometry thiab cov khoom lag luam nyob ruaj khov.
(2) Tshem tawm sab hauv cov kev ntxhov siab hauv kev txiav txim siab txhawm rau txhim kho kev ua haujlwm ntawm workpiece thiab ruaj khov rau geometry ntawm workpiece.
(3) kho cov cuab yeej siv cov khoom siv ntawm cov hlau kom tau raws li qhov yuav tsum tau siv.
Yuav tsum muaj kev npau taws: kev siv sib txawv ntawm cov workpiece yuav tsum tau npau taws ntawm qhov kub kub kom tau raws li qhov yuav tsum tau ua. (1) tej cuab yeej, bearings, carburizing quenched ntu, tsawg-kub tsis hloov ntau, kev ntxhov siab sab hauv, qhov tawv me ntsis txhim kho. (2) Lub caij nplooj ntoo hlav hauv 350 ~ 500 ℃ hauv nruab nrab kub tempering, tuaj yeem tau elasticity thiab tsim nyog nyuaj. (3) Cov khoom siv roj carbon-carbon ua ua los ntawm kev kub siab feem ntau ntawm 500 txog 600 txhawm rau kom tau txais lub zog tsim nyog thiab kev sib tw tawv ntawm qhov sib tw zoo.
Kev ua si ib txwm yog ib hom kev kho cua sov kom txhim kho cov tawv nqaij tawv, cov hlau sib tsoo tau ua kom sov li 30 ~ 50 50, tom qab tuav lub sijhawm ntawm huab cua txias. Lub hauv paus tseem ceeb yog qhov kev ua kom txias dua li qhov rov qab txias dua ntawm cov crystally hauv lub zog me me, thiab tuaj yeem txhim kho cov capriceness me me (AKV tus nqi ), txo cov nyiam ua kom tawg ntawm cov khoom siv, qee qhov qis alloy Kub kub Forging thiab cov khoom siv los ntawm kev coj ua, cov khoom siv me txhua yam ntawm cov Cov ntaub ntawv tuaj yeem ua si txhawm rau txhim kho, tab sis kuj txhim kho kev txiav kev ua tau zoo.
Annealing yog cov hlau maj mam rhuab rau ib qho kub thiab txias, tswj kom muaj lub sijhawm txias ntawm lub sijhawm txias ntawm cov txheej txheem cua sov hlau. Annealing kev kho cua sov tau muab faib ua cov anertaling ua tiav, tsis tiav kev ua tsis tiav thiab kev ntxhov siab pab txhawb nqa. Cov khoom siv neeg kho tshuab ntawm annealed cov ntaub ntawv tuaj yeem siv Tensile kuaj mus rau Kinze, tseem tuaj yeem kuaj pom los ntawm kev sim hardness. Ntau cov ntaub ntawv steel tau muab rau hauv qhov chaw ua haujlwm kub ceev, kev sim siv hlau tawv, koj tuaj yeem siv cov qauv loj , Cov ntaub ntawv hauv tsev HRT HARDNESS.
Lub hom phiaj ntawm quenching thiab annealing thiab analing: 1 txhawm rau txhim kho cov khoom siv tsis xws luag, kom tsis txhob muaj kev ntxhov siab, kom tiv thaiv kev ntxhov siab, tawg. 2 Los soften lub workpiece thiaj li ua kom muaj kev txiav tawm. 3 Txhawm rau kom ua kom cov noob nplej, txhim kho lub koom haum txhawm rau txhim kho cov khoom siv tshuab ntawm lub workpiece. 4 Rau qhov kev kho cua sov kawg (quenching, tempering) ua haujlwm zoo ntawm cov qauv zoo.
Cov txheej txheem aneveing yog:
(1) Ua tiav annealing. Siv los ua kom ua kom zoo rau hauv nruab nrab thiab hauv qab cov hlau hlau los ntawm kev ua pov thawj, Forging thiab vuam tom qab rov tshwm sim ntawm cov ntaub so ntawm cov nqaij mos.
(2) spheroids annealing. Siv los txo cov siab tawv ntawm cov cuab yeej steel thiab cov kabmob hlau tom qab forging.
(3) yog anothermal annealing. Siv rau JIANGDU qee tus neeg npib tsib xee, chromium cov ntsiab lus lub steel alloy qauv txheej txheem hlau siab.
(4) recrystallization analing. Siv rau trolley hlau hlau xaim, ntawv hauv cov txheej txheem txias, cov txheej txheem txias dua ntawm cov txheej txheem tawv (tawv muaj zog ntxiv, cov yas txo qis)
(5) analing. Siv los ua cov hlau pov cov hlau uas muaj ntau lub cev carburized mus rau hauv mallible lub cev hlau nrog cov yas zoo.
(6) kev sib txawv. Siv los ua kom cov tshuaj lom neeg muaj pes tsawg leeg ntawm Alloy caso caso casts cov ris tsho hnav, txhim kho nws cov kev ua tau zoo.
(7) Kev Txhaum Cai Txawj Ntse. Siv los tshem tawm kev ntxhov siab sab hauv ntawm cov hlau casings thiab weldments.
Lub Sijhawm Post: Dec-01-2024
