Yuav ua li cas npaj lub tempering nkhaus ntawm H13 khoom
Tso lus
Cov ntaub ntawv ntawm qhov kub thiab txias - hardness kev twb kev txuas yog xav tau los npaj lub tempering nkhaus ntawm H13 khoom. Ob peb txheej ntawm tempering kub thiab nrog rau hardness qhov tseem ceeb tau txais los ntawm kev sim nyob rau hauv 550-600℃ntau yam, nrog 580℃ua lub ntsiab lus siv. Cov txheej txheem tseem ceeb, suav nrog ob lub voj voog tempering thiab tuav lub sijhawm, tau sau tseg. Cov kauj ruam meej yog raws li nram no:
1. Tau txais cov ntaub ntawv sim
Cov txheej txheem thiab cov txheej txheem
Temperature Gradient Setting
Xaiv 550 degree, 560 degree, 580 degree, thiab 600℃raws li koj li plaub lub ntsiab lus kub ib txwm. Yuav tsum muaj tsawg kawg yog peb qhov piv txwv rau txhua pawg.
Standardized Tempering txheej txheem
Ntawm txhua qhov ntsuas kub, ua ob lub voj voog tempering, tuav txhua lub sijhawm tsawg kawg ob teev. Ua ntej pib qhov thib ob tempering, cia cov huab cua nyob rau hauv chav sov tom qab thawj zaug.
Test rau Hardness
Thaum cov khoom tau txias rau hauv chav tsev kub, ntsuas peb mus rau tsib qhov chaw ntawm nws (qhov nruab nrab, ntug, thiab thickness ciam teb) siv lub portable hardness tester, ces nruab nrab cov txiaj ntsig.
Kev ntes cov ntaub ntawv
Cov txheej txheem kev sib txawv xws li workpiece thickness, tuav lub sij hawm, txias txoj kev, thiab kub kub nkhaus ib txhij.
Piv txwv cov ntaub ntawv: Qhov ntsuas hardness yog 49.8 ~ 50.3 HRC tom qab ob teev × ob temperings ntawm 580 degree.
2. Tus txheej txheem ntawm txoj kab nkhaus
Tempering kub (degree) ntawm kab rov tav axis, nrog thaj tsam ntawm 550-600 degree;
Nruab nrab hardness (HRC) ntawm txoj kab ntsug
Cov Ntaub Ntawv Cov Ntsiab Lus: Npaj txhua qhov kub ntawm qhov nruab nrab hardness tus nqi;
Txoj Kab Ntsig: Koom nrog cov ntaub ntawv cov ntsiab lus los tsim cov nkhaus du uas qhia txog qhov nyuaj npaum li cas maj mam poob qis thaum kub nce;
Kev piav qhia ntawm Cov Ntaub Ntawv Tseem Ceeb:
"Ob lub voj voog tempering" yuav tsum tau sau tseg.
Nco ntsoov "Tuav lub sijhawm ntau dua lossis sib npaug li 2 teev";
Muab "580℃± 5 degree" raws li qhov xav tau.
suav nrog cov lus piav qhia ntawm microstructure (xws li "Uniform tempered martensite + dispersed carbides").
Tswv yim: Npaj qhov nkhaus siv cov kev pab cuam xws li Excel lossis Keeb Kwm los xyuas kom meej cov kev sib koom tes thiab cov lus pom zoo.
3. Kev txheeb xyuas thiab kev siv ntawm Curves
Metallographic pov thawj: Lub microstructure tau lees paub tias yog homogenous tempered martensite + tawg carbides los ntawm metallographic tshawb xyuas ntawm cov qauv;
Txheej Txheem Archiving: Yuav kom ua tiav traceability, khaws txhua qhov cub qhov kub thiab ntsuas cov ntaub ntawv;
Process Optimization Reference: To prevent going into the brittle zone (>52 HRC) lossis thaj chaw softening (<48 HRC), find the hardness inflection point across the curve.
"Data authenticity, process controllability, and microstructure reliability" yog peb txoj hauv kev nyab xeeb uas lav qhov nkhaus qhov kev cia siab rau kev tshawb fawb.
