Ib tug anerting
Tag nrho anealed
Txheej Txheem: Thaum tshav kub kub cov hlau tivthaiv mus rau qhov tseem ceeb kub tseem ceeb (cov hlau sib txawv muaj ntau qhov chaw kub loj), feem ntau
AC {3 30-50 degree, qhov tseem ceeb ntawm cov hlau loj tuaj yeem sib txawv, thiab tom qab ntawd maj mam txias nrog lub cub tawg lossis faus rau hauv cov xuab zeb rau txias.
Lub Hom Phiaj: Refine Grain Loj, Ua tiav cov qauv kev coj ua, txo qis hardness, thiab tag nrho tshem tawm sab hauv kev ntxhov siab. Ua tiav annealing yog haum rau cov steel hlau nrog cov ntsiab lus carbon (Mass feem hauv qab 0.8%. Qhov no pab txhawm rau txhim kho cov plasticity thiab tawv ntawm cov roj hlau steel, thiab ruaj khov qhov loj me ntawm cov kav hlau, kom cov qauv ntawm cov kav hlau tsis hloov pauv thaum siv thaum siv sijhawm.
Spheridization Annealing
Txheej txheem: Ua kom sov cov hlau mus rau qhov kub siab dua, tom qab ntawd txias rau lub spheroidization kub, thiab thaum kawg txias nws mus rau chav tsev.
Lub Hom Phiaj: kom txo qis hardness, txhim kho kev txiav kev ua tau zoo, thiab npaj rau yav tom ntej quenching los txo kev deformation thiab tawg tom qab quenching. Spheroidal annealing yog haum rau cov steel hlau thiab alloy tuam hlau nrog cov ntsiab lus carbon ntawm 0.7-1.0%
Hais Txog Kev Sib Koom Tes Ceev
Txheej Txheem: Feem ntau, ua kom sov txias yog siv.
Lub Hom Phiaj: Yuav kom tshem tawm sab hauv kev ntxhov siab sab hauv tsim kho thaum lub sij hawm sib zog ntawm cov steel, thiab kom tiv thaiv kev deformation thaum yav tom ntej thiab siv. Kev nyuaj siab pab txhawb pab cuam yog tsim nyog rau ntau yam castings, forgings, suav nrog kev sib tw ntawm cov kav hlau steel, thiab cov khoom tawg ntawm cov kav dej txawv txawv tom qab ua.
Li ib txwm
Kev ua
Thaum tshav kub kub cov hlau tivtiv saum toj no qhov tseem ceeb kub (feem ntau 30-50℃rau saum toj no AC3 lossis ACM), tuav nws rau qee lub sijhawm, thiab tom qab ntawd txias rau nws hauv huab cua.
Lub hom phiaj
Txhim kho cov qauv koom thiab txiav ua yeeb yam; Rau qhov nrog cov kev ua tau zoo ntawm cov neeg kho kom muaj, li qub yog siv ua qhov kev kho cua sov kawg; Tshem tawm sab hauv kev ntxhov siab. Kev ua kom zoo nkauj kuj tseem tuaj yeem ua kom cov qoob loo loj ntawm cov hlau, txhim kho cov qauv kev ua haujlwm sab hauv, txhim kho cov qauv kev ua haujlwm hauv lub sijhawm ntawm lub sijhawm deformation txheej txheem; Tshem tawm network carbides hauv Eutectoid hlau los pab txhawb kev sib tw spheridation; Siv rau pre {-}}}}}}} kev kho pa roj carbon steel ua ntej quenching, kom cov qauv sib xyaw, txo cov yeeb nkab steel, txo cov hlau tsis xws luag tshwm sim los ntawm kev txiav txim siab. Cov pa roj carbon tsawg thiab tsawg {{{- Cov hlau alleoy tuaj yeem siv los ua ib qho kev txiav txim siab ntawm cov roj steel, thiab tuaj yeem siv ua cov txheej txheem cua sov uas muaj cov kev xav tau tsawg.
Yam muaj
Kev ua
Sov cov steel seem saum toj no qhov tseem ceeb tshaj AC3), kom lawv sov rau ib lub sijhawm, thiab tom qab ntawd lawv txias rau hauv dej, ntsev, lossis roj (qee cov ntaub ntawv nyob hauv huab cua).
Lub hom phiaj
Pab kom cov steel Cheebtsam kom ua tiav qee yam tshwj xeeb, xws li siab dua lub zog, elasticity, thiab tawv, tom qab tempering. However, the quenched structure generally has high hardness and brittleness, and is a product of rapid cooling of austenite. Tom qab kev pab cuam tom ntej yog feem ntau yuav tsum tau txhim kho kev ua tau zoo.
Quenching kev kho mob feem ntau muab faib ua cov txheej txheem sib txawv xws li tso dej quenching, roj quenching, thiab roj quenching. Dej quenching yog txheej txheem ntawm kev tshem tawm cov hlau kom sai rau hauv dej, ua rau lub cua txias nrawm tshaj plaws thiab cov nyhuv zoo tshaj plaws; Cov roj quenching yog kev tawm tswv yim nrawm ntawm cov hlau rau hauv cov roj, nrog tus nqi cua txias ceev, haum rau qee cov tshuaj tiv thaiv cov roj carbon; Cov roj quenching yog cov txheej txheem ntawm kev nthuav dav hlau rau ib puag ncig roj, thiab haum rau qee cov pa roj carbon uas tsis tas yuav muaj cov nqi cua txias.
Npau taws
Kev ua
Ua kom sov lub quenched steel rau ib qho kub thiab maj mam txias nws.
Pbjective
Tshem tawm sab hauv kev ntxhov siab tsim los ntawm quenching thiab txhim kho cov tawv thiab tensile lub zog ntawm cov hlau (suav nrog seamless cov pa roj carbon (suav nrog seamless cov kav hlau steel Kev kho siab rau feem ntau yog muab faib ua ntau yam kub thiab txias (150 {}}}}}}}}}} Tempering ntawm kev sib txawv kub tuaj yeem ua rau muaj cov khoom sib txawv.
