Yuav ua li cas txiav txim siab seb qhov hardness ntawm H13 cov khoom ua tau raws li tus qauv tom qab tempering
Tso lus
Lub hauv paus tseem ceeb rau kev ntsuam xyuas seb qhov hardness ntawm H13 cov khoom puas ua tau raws li qhov yuav tsum tau ua tom qab tempering yog tias tus nqi hardness poob ntawm 48 thiab 52 HRC, nrog rau ib thooj poob qis dua los yog sib npaug rau 2 HRC. Nws muaj peev xwm txiav txim siab seb nws puas ua tau raws li qhov yuav tsum tau ua ntawm kev pabcuam los ntawm kev sib txuas cov kev pabcuam pabcuam nrog rau ntawm - qhov chaw kuaj.
1. Cov qauv rau kev kuaj Hardness
Qhov taw qhia
Hom kab mob
Kev ncaj ncees
Hardness nruab nrab
48–52 HRC
Too high (>52) qhia tias muaj zog brittleness; tsawg dhau (<48) denotes insufficient strength.
Ntau yam ntawm Ib Daim
Tsawg dua lossis sib npaug li 2 HRC
Qhov sib txawv loj tshaj plaws nyob rau tib daim ntawm ob peb qhov chaw sim, qhia txog kev sib xws
Stability ntawm Batches
Qhov nruab nrab hloov ntawm tus nqi Tsawg dua lossis sib npaug rau ± 1 HRC
Ntau daim 'tus nqi nruab nrab deviates los ntawm tus qauv tsis ntau tshaj ib HRC.
Piv txwv li, H13 kub khiav nozzle tau pom tias ua tau raws li qhov nyuaj ntawm tsib lub ntsiab lus ntsuas yog 49.8, 50.1, 50.3, 49.9, thiab 50.0 HRC, nrog rau ntau yam ntawm 0.5 HRC nkaus xwb.
2. Cov ntsiab lus tseem ceeb ntawm On-Site Test
Test Point Layout: Xaiv peb mus rau tsib lub ntsiab lus tseem ceeb (nruab nrab, ntug, tuab ciam teb) ntawm txhua yam khoom uas npog thaj tsam uas cuam tshuam rau qhov tsis sib xws.
Ua ntej siv lub cuab yeej, xyuas nws ntawm tus qauv thaiv kom paub meej tias qhov yuam kev nyob hauv ± 1 HRC.
Txias rau Chav Kub: Txhawm rau zam kev ntsuas raug cuam tshuam los ntawm tshav kub-induced softening, workpiece kub yuav tsum tsawg dua 50℃ua ntej kuaj.
Cov Ntaub Ntawv Cov Ntaub Ntawv: Txhawm rau lav qhov zoo tshaj plaws traceability, khij lub workpiece nrog tus lej xov tooj, lub tshuab hluav taws xob, thiab cov neeg ua haujlwm kuaj.
Nco tseg: Txhawm rau lav qhov ntsuas qhov tseeb, cov khoom siv tawv tawv yuav tsum tau kuaj xyuas txhua peb lub hlis.
3. Cov txheej txheem ua pov thawj ntxiv (High-Qhov Kev Xav Tau)
Metallographic tsom xam suav nrog kev ua piv txwv thiab txiav txim siab seb lub microstructure muaj cov carbides faib thiab homogenous tempered martensite, tsis muaj network lossis coarse carbides;
Kev pov thawj ntawm lub qhov cub kub kub: Kev txiav txim siab seb cov txheej txheem tempering tsis muaj kev cuam tshuam thiab tsis muaj kev hloov pauv hauv zos kub ntawm 550-600 degree;
Kev txheeb xyuas cov ntsiab lus: Xyuas kom meej tias cov ntsiab lus ntawm Cr (5.0% ~ 5.5%), Mo (1.1% ~ 1.75%), thiab V (0.8% ~ 1.2%) txaus siab rau cov kev cai siv XRF.
