Forgingshauvtxheej txheem forging, kev kho cua sov yog qhov txuas tseem ceeb tshaj plaws, kev kho cua sov roughly annealing, normalizing, quenching thiab tempering plaub txheej txheem, feem ntau hu ua hlau kho cua sov ntawm "plaub hluav taws".

ib, hlau kub kho ntawm hluav taws kub - annealing:
1, annealing yog kom sov lub workpiece mus rau qhov tsim nyog qhov kub thiab txias, raws li cov khoom thiab workpiece loj siv lub sij hawm sib txawv, thiab ces txias txias, lub hom phiaj yog ua kom cov hlau sab hauv lub koom haum mus txog los yog ze rau lub equilibrium lub xeev, kom tau. kev ua tau zoo ntawm cov txheej txheem thiab kev ua tau zoo, los yog ntxiv quenching rau kev npaj cov ntaub so ntswg.
2, lub hom phiaj ntawm annealing:

① Txhawm rau txhim kho lossis tshem tawm cov hlau hauv casting, forging, dov thiab vuam txheej txheem tshwm sim los ntawm ntau yam kev ua haujlwm tsis zoo thiab kev ntxhov siab, los tiv thaiv qhov deformation ntawm lub workpiece, tawg.

② soften lub workpiece rau txiav.

③ Txhim kho cov nplej thiab txhim kho cov qauv txhawm rau txhim kho cov khoom siv ntawm cov khoom ua haujlwm. (4) Npaj rau kev kho cua sov zaum kawg (quenching, tempering).
Ob, hlau kho cua sov ntawm qhov thib ob hluav taws - normalizing:
1, normalizing yog kom sov lub workpiece mus rau qhov tsim nyog kub tom qab txias nyob rau hauv cov huab cua, cov nyhuv ntawm normalizing yog zoo li annealing, tab sis cov qauv yog finer, feem ntau siv los txhim kho cov kev ua tau zoo ntawm cov ntaub ntawv, tab sis kuj tej zaum kuj siv rau tej qhov chaw. nrog cov kev xav tau qis raws li kev kho cua sov zaum kawg.
2, lub hom phiaj ntawm normalizing:
①Nws tuaj yeem tshem tawm cov txheej txheem superheated coarse grain thiab widnells qauv ntawm cov casting, forging thiab vuam qhov chaw, thiab cov qauv banded hauv cov khoom dov; Cov nplej ua kom zoo; Thiab tuaj yeem siv los ua kev kho cua sov ua ntej ua ntej quenching.
② Nws tuaj yeem tshem tawm lub network thib ob cementite, thiab kho cov pearlite, tsis tsuas yog txhim kho cov khoom siv kho tshuab, tab sis kuj tseem ua rau lub neej yav tom ntej spheroidizing annealing.
③ Cov cementite dawb ntawm cov ciam teb tuaj yeem raug tshem tawm los txhim kho kev sib sib zog nqus kos duab.
Peb, kev kho cua sov hlau ntawm qhov hluav taws kub thib peb - ​​quenching:
1, quenching yog kom sov lub workpiece tom qab tshav kub preservation, nyob rau hauv dej, roj los yog lwm yam inorganic ntsev, organic dej tov thiab lwm yam quenching nruab nrab txias sai sai. Tom qab quenching, steel yuav nyuaj, tab sis tib lub sij hawm ua nkig.
2. Lub hom phiaj ntawm quenching:
① Txhim kho cov khoom siv hluav taws xob ntawm cov khoom siv hlau lossis qhov chaw. Piv txwv li: txhim kho lub hardness thiab hnav tsis kam ntawm cov cuab yeej, bearings, thiab lwm yam., txhim kho cov elastic txwv ntawm springs, txhim kho cov khoom zoo ntawm cov ncej, thiab lwm yam.
②, txhim kho cov khoom siv lossis tshuaj lom neeg ntawm qee cov hlau tshwj xeeb. Xws li kev txhim kho corrosion tsis kam ntawm stainless hlau, ua kom cov hlau nplaum ruaj khov ntawm cov hlau nplaum, thiab lwm yam.
Plaub, hlau kub kho ntawm plaub qhov hluav taws kub - tempering:
1, tempering thiaj li yuav txo tau lub brittleness ntawm hlau, quench ntawm hlau ntawm ib tug tej yam tsim nyog kub saum chav tsev kub thiab hauv qab no 710 ℃ rau ib ntev lub sij hawm, thiab ces txias, qhov txheej txheem no hu ua tempering.
2, lub hom phiaj ntawm tempering:
①, txo cov kev ntxhov siab sab hauv thiab txo cov brittleness, muaj kev ntxhov siab ntau thiab brittleness ntawm quenching qhov chaw, xws li tsis raws sij hawm tempering feem ntau tsim deformation thiab txawm tawg.
② Kho cov khoom siv kho tshuab ntawm lub workpiece. Tom qab quenching, lub workpiece muaj siab hardness thiab brittleness. Txhawm rau ua kom tau raws li qhov sib txawv ntawm kev ua haujlwm ntawm ntau yam khoom siv, lub hardness, lub zog, plasticity thiab toughness tuaj yeem hloov kho los ntawm tempering.
③, stabilize lub workpiece loj. Los ntawm tempering, cov qauv metallographic tuaj yeem ruaj khov kom ntseeg tau tias deformation yuav tsis tshwm sim hauv cov txheej txheem siv yav tom ntej.
④, txhim kho kev ua haujlwm ntawm qee cov hlau alloy.