Dab tsi yog qhov kwv yees dhau ntawm kev kho cua sov ntawm H13 khoom?

Sep 11, 2026

Tso lus

Raws li tus qauv ua haujlwm, tus nqi dhau rau kev kho cua sov ntawm H13 cov khoom tuaj yeem tshaj 95%. Tus nqi dhau tuaj yeem khaws cia tsis tu ncua ntawm li 98% yog tias nws tau ua los ntawm qhov chaw kho cua sov tsim nyog nrog CQI-9 ntawv pov thawj, cov txheej txheem raug tswj hwm, thiab tag nrho cov ntaub ntawv tsim nyog tau khaws cia.

1. Cov ntsiab lus tseem ceeb cuam tshuam rau tus nqi dhau

Ib yam

Kev piav qhia

Qhov tseeb ntawm Kev Tswj Xyuas Txheej Txheem

Kev sib txawv ntawm qhov kub thiab txias (1020 ~ 1050 degree) thiab tempering kub (550 ~ 600 degree) yuav tsum tsawg dua los yog sib npaug rau ± 10℃los tiv thaiv qhov tsis sib xws los yog tawg.

Nruab nrab lub xeev ntawm kev ua kom txias

Kev tshuaj xyuas tsis tu ncua tuaj yeem txhawb nqa tus nqi dhau los ntawm 5% mus rau 8%, tab sis quenching roj dej cov ntsiab lus ntau dua 0.5% yuav ua kom txias txias thiab ua kom muaj qhov muag muag.

Cov txheej txheem complexity ntawm lub workpiece

Cov txheej txheem thauj khoom ntawm lub tshuab hluav taws xob thiab cov cua txias sib xws yuav tsum tau ua kom zoo dua vim tias nyias -walled, ntxeem tau, los yog asymmetrical kev tsim ua rau deformation.

Kev sib raug zoo ntawm cov khoom siv raw

Phase transformation behavior will be impacted by composition changes (e.g., Cr, Mo divergence >0.1%), uas tuaj yeem ua rau overheating lossis tsis tiav quenching.

Cov ntaub ntawv tseeb: Tshaj li xyoo dhau los, Wuhan qhov chaw kho cua sov nrog CQI-9 daim ntawv pov thawj ua tiav ntawm H13 pwm hlau nrog qhov nruab nrab dhau ntawm 97.6%.

2. Cov kauj ruam tseem ceeb kom nce tus nqi tawm los

Tag Nrho- Kev Saib Xyuas Txheej Txheem: Ua raws txhua lub qhov cub kub qhov nkhaus kom paub tseeb tias tuav lub sij hawm thiab cua sov / cua txias raws li cov txheej txheem tshwj xeeb.

100% Hardness Test: Tom qab tempering, sim txhua daim nrog lub portable hardness tester kom paub tseeb tias qhov hardness nyob nruab nrab ntawm 48 thiab 52 HRC.

Metallographic Sampling Verification: Txhawm rau txheeb xyuas qhov sib txawv tempered martensite, ua microstructure tsom xam ntawm cov qauv batch (Ntau dua lossis sib npaug li 5%).

Stress Relief Pretreatment: Txhawm rau txo qhov muaj peev xwm ntawm kev kho cua sov deformation, ua kom muaj kev ntxhov siab ntxhov siab (500-600 degree) tom qab machining.

Case Study: By maximizing furnace loading density and gas circulation, Jingmo Technology lowered the deformation deviation rate of H13 nitrided parts from 4.2% to 1.1%.

3. Tej yam tshwm sim thiab tshwm sim ntawm kev tsis sib haum xeeb

Ib qho txhaum

Kev nthuav qhia

Kev phom sij

Hardness tsis txaus (<45 HRC)

Tshaj -tempering los yog tsis txaus quenching

Ceev deterioration thiab vau thaum siv

High Hardness (>54 HRC)

High residual stress thiab tsis txaus tempering

Nws yooj yim rau kev tawg, tshwj xeeb tshaj yog thaum txhaj tshuaj molding siab.

Txawv txawv Microstructure

Network carbides thiab coarse martensite