Cov kab hluav taws xob kub tau muab faib ua ob pawg: ib qho yog quenching thiab tempering cua sov, thiab lwm yam yog tshuaj kho cua sov sov. Txoj kev ntsuas hardness yog raws li hauv qab no:
1. Nto Quenching thiab Tempering Kev Kho Mob Cua Sov
Nto Quenching thiab tempering Cua Sov Kev Kho Mob feem ntau tau nqa los ntawm kev tawm tsam cua sov lossis nplaim hluav taws xob cua sov. Cov qauv tseem ceeb yog cov tawv tawv tawv, tawv hauv zos thiab ua tau zoo txheej qhov tob tob. Vickers Hardness Teser lossis Rockwell Hardness Tester tuaj yeem siv rau kev sim hardness. Kev xaiv dag zog yog cuam tshuam nrog qhov tob ntawm cov txheej hardened zoo thiab cov npoo tawv ntawm lub wardpiece. Muaj peb lub zog tawv ua ke nrog ntawm no.
(1) Vickers Hardness Tester yog ib qho tseem ceeb txhais tau tias sim cov npoo tawv ntawm kev ua haujlwm warnpieces. Nws tuaj yeem siv lub zog sim ntawm 0.5-100kg los sim txheej saum npoo hardening txheej uas nyias nyias li 0.05mm tuab. Nws qhov tseeb yog siab thiab nws tuaj yeem paub qhov txawv ntawm cov khoom ua haujlwm kub. Qhov sib txawv me ntsis hauv cov tawv tawv saum npoo av, ntxiv rau, qhov tob ntawm lub ntsuas kev kho mob hnyav, yog li nws yog siv ntau ntawm cov kev kho cua sov ua kom sov.
(2) Cov nplaim Rockwell Hardness Hardness kuj tsim nyog rau kev sim lub hardness ntawm qhov chaw workpient saum npoo av. Muaj peb teev rau saum npoo rockwell hardness tester xaiv los ntawm. Nws tuaj yeem sim ntau saum npoo hardened workpieces uas tau ua hauj lwm zoo txheej qhov tob ntau tshaj 0.1mm. Txawm hais tias qhov tseeb ntawm qhov chaw Rockwell Hardness tsis yog siab li ntawm cov kev cai tswj hwm kom tswj tau cov khoom siv kub. Cov .besides, nws tseem muaj cov yam ntxwv ntawm kev ua haujlwm yooj yim, cov nqi yooj yim, ntsuas qis, kev nyeem ncaj qha ntawm kev tawv muaj nuj nqis. Cov nplaim Rockwell Hardness Hardness Lub Harder Tester tuaj yeem siv tau los ua kom sai thiab tsis yog-ua kom muaj kev puas tsuaj ntawm cov wighpieces ib qho los ntawm ib qho. Nws yog qhov tseem ceeb rau kev ua hlau ua thiab tshuab tsim cov chaw ua haujlwm. Thaum cov npoo cua sov kho cov txheej txheem hardened yog tuab, lub pob zeb rockwell hardness tester kuj tseem siv tau. Thaum cov kev kho cua sov kho cua sov txheej tuab yog 0.4-0.8mm, HRA nplai yuav siv tau. Thaum lub hardened txheej qhov tob thaum nws tshaj 0.8mm, HDC nplai tuaj yeem siv tau. Vickers, Rockwell thiab superficial rockwell peb nyuaj rau cov qauv yuav tau hloov mus rau ib leeg, thiab cov lus sib raug zoo dua yog nyob hauv International Standard ISO. Tus Txheej Txheem Asmeskas ATM thiab tus qauv Suav GB / T tau muab rau.
(3) Thaum lub tuab ntawm cov tshav kub hardened hardened yog ntau tshaj 0.2 hli, tab sis ib qho sensor hardor xav tau xaiv. Thaum ntsuas, saib yuav tsum tau them rau saum npoo ua tiav thiab tag nrho cov tuab ntawm lub workpiece. Txoj kev ntsuas ntsuas no tsis muaj cov vickers thiab rockwell Lub testan hardness yog qhov tseeb, tab sis nws haum rau kev ntsuas ntsuas hauv lub hoobkas.
2. Tshuaj Kho Kub Kub
Tshuaj lom neeg kho cua sov yog los inartrate qhov saum npoo ntawm workpiece nrog ib lossis ob peb hloov cov tshuaj lom neeg, qauv thiab kev ua tau zoo ntawm lub workpiece. Tom qab quenching thiab tsawg kub npau taws, cov saum npoo ntawm workpiece muaj siab hardness thiab hnav tsis kam. thiab hu rau kev qaug zog nkees, thiab cov tub ntxhais ntawm lub workpiece muaj lub zog siab thiab tawv. Lub ntsiab txheej txheem ntawm cov tshuaj lom neeg kho cua sov kho ua haujlwm workpiece yog qhov tob ntawm txheej hardened thiab tawv tawv. Qhov kev ncua deb ntawm qhov kev ua kom tawv tawv poob rau 50hrc yog qhov ua tau zoo nyuaj txheej qhov tob. Lub saum npoo hardness ntsuas cov tshuaj kho cua sov kho ua haujlwm zoo ib yam li kev sim tawv ntawm cov khoom siv hluav taws xob saum npoo av. Vickers Cov Khoom Siv Hardness, Nta Rockwell Hardness Hardness Testers lossis Rockwell Hardness Cov tub ua lus siv tau siv tau. Hardness tester los xyuas, tsuas yog cov tuab ntawm nitriding ntawm nitriding ntawm nitriding tuab yog thinning, feem ntau tsis ntau tshaj 0.7mm, ces lub pob zeb rockness tester tsis tuaj yeem siv
3. Kev Kho Mob Hauv Qab Ntuj
Yog tias cov kev kho cua sov hauv zos yuav tsum tau ua kom muaj cua sov thiab kev sim ua kom muaj cua sov thiab muaj peev xwm ua tau cov khoom cua sov Yog tias cov kev kho kub kho cua sov hardened txheej yog ntiav, saum npoo Rockwell Hardness Starner tuaj yeem siv los sim tshuaj HRN hardness tus nqi.
Lub sij hawm Post: Feb-22-2023
