Yog vim li cas vim li cas hardness ntawm induction hardened qhov chaw tsis ua raws li cov kev cai

1. Lub quenching kub tsis txaus

Ntawd yog, cov cua sov tsis txaus thiab qhov kev xav tau ntawm austenitizing kub tsis ncav cuag. Rau nruab nrab carbon structural steel, muaj undissolved ferrite nyob rau hauv lub austenite, thiab muaj undissolved ferrite nyob rau hauv lub quenched qauv tshwj tsis yog rau martensite, thiab quenched nto ntawm lub workpiece feem ntau xiav. Nws tseem tuaj yeem pom los ntawm qhov pom ntawm induction hardened qhov chaw uas qhov qub quenched nto yog beige, thiab overheated nto yog dawb.

2. Cov cua txias tsis txaus

Ntawd yog, qhov txias txias yog qis dua qhov tseem ceeb ntawm qhov txias txias. Nyob rau hauv lub quenched qauv, nyob rau hauv tas li ntawd mus rau ib feem ntawm lub martensite, kuj muaj tortenite, thiab qhov ntau dua tus nqi ntawm tortenite, qhov qis hardness. Nws feem ntau tshwm sim thaum lub concentration ntawm quenching nruab nrab, qhov kub thiab txias, hloov siab thiab lub qhov dej txhaj tshuaj raug thaiv.

3. Tus kheej-tempering kub yog siab dhau

Qhov teeb meem ntawm qhov kub ntawm nws tus kheej ntau dhau ntawm qhov kub thiab txias tshwm sim nyob rau hauv cov ncej scanning quenching, uas feem ntau tshwm sim thaum lub sij hawm kab rov tav ncej quenching los yog stepped ncej ntsug quenching. Thaum qhov dav ntawm lub dav hlau ua kua yog luv luv, lub cua sov saum npoo sai dhau lub dav hlau ua kua thiab tsis txias qhov quenching seem txaus, thiab cov dej ntws yog thaiv los ntawm cov kauj ruam (qhov loj txoj kab uas hla yog nyob rau sab saum toj, me me txoj kab uas hla. yog nyob rau hauv qab), thiab seem quenched tsis tuaj yeem txuas ntxiv kom txias. Yog li ntawd, qhov pom tseeb ntawm tus kheej-tempering kub yog feem ntau pom thiab kuaj pom ntawm qhov chaw quenched.

4. Mos qhov chaw los yog kauv dub siv

Cov pob muag muag thiab cov blocks ntawm qhov chaw quenched feem ntau yog xim dub, thiab cov khoom siv kauv dub yog ib qho tsis xws luag ntawm cov khoom siv scanning quenched. Qhov no dub band tseem hu ua cov mos mos band, thiab nws feem ntau yog ib tug tortite qauv. Kev daws yog txau cov kua sib npaug, thiab ua kom qhov sib hloov ceev ntawm lub workpiece kuj tuaj yeem txo cov suab nrov ntawm txoj siv tawv dub, tab sis qhov tseem ceeb tshaj plaws yog cov qauv ntawm cov tshuaj tsuag dej yuav tsum ua kom cov cua sov saum npoo txias sib npaug. Clogged dav hlau qhov feem ntau yog ib qho ua rau ntawm qhov muag muag.

5. Kev cuam tshuam ntawm cov khoom siv tshuaj lom neeg muaj pes tsawg leeg

Qhov txo qis ntawm cov khoom muaj pes tsawg leeg, tshwj xeeb tshaj yog cov ntsiab lus carbon, yog ib qho ntawm cov yam ntxwv ntawm kev txo cov hardness. Yog tias tsim nyog, cov ntsiab lus carbon uas tau xaiv tuaj yeem siv rau qhov tseem ceeb, kom lub siab thiab qis ntawm w(C) tuaj yeem nqaim mus rau hauv 0.05%.

6. Npaj kev kho cua sov

Kev hloov pauv hauv cov txheej txheem quenching thiab tempering, thiab cov tawv nqaij dub ntawm cov khoom dov tseem nyob rau ntawm qhov chaw quenching kuj yog vim li cas vim li cas qhov hardness ntawm induction hardened qhov chaw tsis ua raws li cov kev cai.

7. Nto decarburization thiab decarbonization

Nws feem ntau tshwm sim nyob rau saum npoo ntawm cov khoom siv txias-kho. Yog li ntawd, tom qab quenching cov tuav, txheej txheej tuaj yeem ua hauv av los ntawm 0.5mm ua ntej hardness. Yog hais tias lub deg hardness yog tsawg, lub puab txheej hardness yog siab tshaj qhov saum npoo, qhia tias muaj cov pa roj carbon depleted los yog decarburized txheej. (tshwj tsis yog tshwj xeeb geometry xws li cam lobes, iav saum).

8. Ribbon primitive ntaub so ntswg

Cov qauv banded nyob rau hauv thawj cov qauv ntawm quenched ib feem yuav ua rau tsis txaus hardness tom qab quenching. Muaj undissolved ferrite nyob rau hauv cov qauv banded, uas tsis tuaj yeem yaj thaum lub sij hawm austenitization txheej txheem, thiab lub hardness tom qab quenching yuav tsum tsis txaus, thiab banded qauv yog ib qho nyuaj rau tshem tawm txawm tias cov cua kub kub nce.