Yuav ua li cas los txiav txim qhov Tempering Kub ntawm H Khoom

Rau cov khoom siv H13, qhov zoo tshaj plaws tempering kub ntawm 550 thiab 600 degree. Qhov no yog ib qho tseem ceeb ntawm cov txheej txheem rau kev lav tias nws cov toughness yog zoo, nws microstructure zoo ib yam, thiab nws hardness yog nyob nruab nrab ntawm 48 thiab 52 HRC. Qhov ntsuas kub no ua tiav kom txo qis kev ntxhov siab, tsis txhob tawg, thiab ua kom muaj kev ua tau zoo tag nrho.

 

1. Lub hauv paus rau Tempering Kub Teeb

Logic rau Xaiv Lub Hom Phiaj Kub

Tshem Tawm Ntawm Kev Nyuaj Siab

Txhawm rau tso tawm tag nrho cov kev ntxhov siab sab hauv uas tshwm sim los ntawm quenching, qhov kub siab tshaj 550℃yuav tsum tau.

Tswj Microstructure Stability

Ua ib qho tempered martensite tawm ntawm qhov tsis ruaj khov quenched martensite.

Tswj lub Hardness

After quenching, adjust the overly high hardness (perhaps >55 HRC) rau qhov zoo tshaj plaws ntawm 48-52 HRC.

Boost Koj Toughness

Txhawm rau kom ua tiav cov kev pabcuam pwm, ua kom muaj kev cuam tshuam tsis zoo thaum tuav lub zog siab.

580℃× 2h × 2 tempering cycles yog cov txheej txheem pom zoo. Cov lag luam hauv Wuhan tau lees paub qhov zoo no -tsim txoj hauv kev, uas ntsuas qhov tawv tawv ntawm 49-51 HRC.

 

2. Qhov kub thiab txias qhov cuam tshuam

<550°C: Workpiece prone to deformation or fracture, significant residual tension, insufficient stress release600°C: Strength and wear resistance are impaired because hardness decreases too quickly, probably below 48 HRC;

Batch sib xws yuav cuam tshuam los ntawm ± 10℃hloov pauv, uas yuav ua rau muaj kev hloov pauv ntawm 1-2 HRC.

Siv lub tshuab ua kom sov nrog ntau- taw tes ntsuas qhov ntsuas kub thiab PID qhov ntsuas kub kom paub tseeb tias lub qhov cub kub sib txawv tsawg dua lossis sib npaug li ± 5℃.

 

3. Cov lus qhia siv tau zoo

Txhawm rau kom tsis txhob muaj kev ntxhov siab, lub workpiece yuav tsum txias rau chav tsev kub tom qab pib tempering;

Lub sijhawm tuav tuaj yeem ua kom haum rau cov khoom ua haujlwm tuab (thickness> 100mm) (30 feeb rau txhua 25mm ntawm thickness);

Muab cov chaw muab kev pabcuam ua raws cai hauv zos yog qhov tseem ceeb tshaj plaws. Wuhan Heat Treatment Plant thiab Jingmo Technology, piv txwv li, muab cov ntaub ntawv qhia txog qhov kub thiab txias.

"Kev tswj qhov kub thiab txias, qhov ntsuas qhov tseeb, thiab cov ntaub ntawv pov thawj" yog cov qauv kev nyab xeeb uas lav txhua pawg ntawm H13 workpieces ua haujlwm tau zoo.