Mechanical zog thiab ua cov txheej txheem ntawm stainless hlau daim hlau
Stainless hlau phaj txhim kho lossis tshem tawm ntau yam kev ua haujlwm tsis zoo thiab cov kev ntxhov siab uas tshwm sim los ntawm cov hlau thaum lub sij hawm casting, forging, dov thiab vuam, thiab tiv thaiv deformation thiab tawg ntawm workpieces. Soften lub workpiece rau txiav. Ua kom zoo dua cov khoom, txhim kho cov qauv, thiab txhim kho cov khoom siv ntawm lub workpiece.
Stainless hlau phaj yog tag nrho annealed los kho cov qauv superheated nrog cov khoom siv tsis zoo tom qab casting, forging thiab vuam ntawm nruab nrab thiab qis carbon steel. Tom qab cua sov lub workpiece rau ferrite, qhov kub ntawm hloov tag nrho cov workpieces rau hauv austenite tshaj 30 ~ 50 degree, tuav rau ib lub sij hawm ntawm lub sij hawm, thiab ces maj mam txias nrog lub cub tawg, cov qauv ntawm lub austenite yuav zoo dua nyob rau hauv lub txias txheej txheem.
Tom qab stainless hlau phaj yog spheroidized, nws yog siv los txo lub siab hardness ntawm cov cuab yeej steel thiab bearing steel tom qab forging. Stainless hlau phaj yog rhuab mus rau 20 ~ 40 degree saum toj no qhov kub ntawm cov hlau pib tsim austenite, thiab ces maj mam txias tom qab cua sov preservation. Thaum lub sij hawm txias, cov txheej txheem carbides nyob rau hauv pearlite ua kheej kheej, thiab hardness txo.
Nws yog siv los txo lub siab toughness ntawm qee cov cuab yeej alloy steels nrog siab nickel-chromium alloy muaj pes tsawg leeg thiab nqa tawm drilling ntau lawm thiab ua. Feem ntau, ua ntej txias ntawm tus nqi nrawm mus rau qhov kub uas lub martensite tsis ruaj khov, thiab thaum lub sij hawm tuav tsim nyog, lub austenite ua trosteite lossis sorbite thiab hardness txo. Recrystallization annealing. Nws yog siv los tshem tawm qhov tshwm sim hardening (nce hauv hardness thiab txo qis hauv plasticity) ntawm cov hlau xaim thiab cov nplooj ntawv thaum lub caij txias txias thiab txias dov.
Yuav luag tag nrho cov khoom siv hluav taws xob tuaj yeem ua tiav electrolytically, thiab tsis txwv los ntawm cov khoom siv thiab lub cev xws li cov khoom siv zog, hardness, thiab toughness, thiab cov qauv metallographic ntawm cov khoom tom qab ua tiav yog qhov tsis hloov pauv. Nws yog feem ntau siv rau hauv kev ua cov ntaub ntawv nyuaj rau tshuab xws li cemented carbide, superalloy, hardened steel, thiab stainless hlau. Electrolytic machining ntawm stainless hlau phaj yog ib txoj kev dav siv tam sim no. Txoj kev ua haujlwm yog qhov yooj yim, kev ua haujlwm ntau lawm yog siab, thiab nws tuaj yeem ua tiav thiab txiav rau hauv ntau yam khoom.