Feem ntau, raws li lub thickness thiab hardness ntawm steel phaj nce, lub siab nyiam ntawm cov kab nrib pleb tshwm rau ntawm ntug txiav yuav nce. Cov laj thawj thiab kev ntsuas yog raws li nram no:
1. Feem ntau hais lus, nplaim taws txiav thiab kab nrib pleb ntawm qhov chaw txiav yog feem ntau cuam tshuam los ntawm cov khoom muaj pes tsawg leeg ntawm cov khoom yuav raug txiav. Feem ntau muaj ob hom kab nrib pleb ntawm lub ntsej muag, pom thiab pom tsis pom. Cov kab nrib pleb uas pom tau raug faib rau ntawm cov kab nrib pleb uas tuaj yeem pom los ntawm qhov muag liab qab, thaum pom cov kab nrib pleb feem ntau faib rau sab hauv ze ntawm ntu ntu, thiab feem ntau yog cov kab nrib pleb. Ntxiv rau qhov tseeb tias cov ntsiab lus carbon lossis alloy cov ntsiab lus ntawm cov khoom yuav raug txiav yog siab dhau los ua rau hla - ntu tawg, nws kuj tseem tuaj yeem tshwm sim los ntawm qhov kub tsis txaus ntawm lub tshuab ua haujlwm thaum lub tshuab hluav taws xob siv rau preheating txiav, lub sijhawm txias ntawm lub workpiece yog ceev heev, thiab cov khoom yog txias thiab hardened. Yog vim li cas: cov ntsiab lus carbon lossis alloy cov ntsiab lus siab dhau lawm. Thaum siv cov txheej txheem preheating, yog tias qhov kub thiab txias ntawm lub workpiece tsis txaus, lub sijhawm txias ntawm lub workpiece yog ceev heev, thiab cov kab nrib pleb yooj yim tsim.
2. Txiav cov kab nrib pleb: Thaum lub phaj hlau raug txiav, yog tias cov npoo ntawm cov phaj hlau muaj cov kab nrib pleb, nws yuav tshwm sim li ntawm 48 teev mus rau ob peb lub lis piam tom qab txiav. Qhov kev txiav no yog qhov tawg qeeb, thiab qhov ntau dua qhov tuab thiab tawv ntawm cov phaj steel, qhov loj dua qhov tawg yuav tshwm sim.
3. Preheating txiav yog txoj hauv kev zoo tshaj plaws los tiv thaiv cov kab nrib pleb hauv steel phaj txiav, uas yog preheat ua ntej txiav. Cov phaj hlau feem ntau yog preheated ua ntej nplaim taws txiav, thiab qhov kub ntawm qhov preheating feem ntau yog nyob ntawm cov khoom thiab thickness ntawm steel phaj. Txoj kev preheating tuaj yeem yog nplaim hluav taws kub lossis cua sov hauv qhov cub cua sov. Txhawm rau txiav txim siab cov nyhuv preheating ntawm cov phaj hlau, qhov ntsuas kub yuav tsum tau ntsuas ntawm qhov chaw ntawm qhov cua sov.
4. Them tshwj xeeb rau preheating, kom tag nrho steel phaj interface yog tusyees rhuab, thiaj li tsis txhob overheating hauv zos nyob rau hauv cheeb tsam hu rau lub tshav kub qhov chaw.
Lwm txoj hauv kev kom tsis txhob txiav cov kab nrib pleb yog txo qhov kev txiav ceev. Yog hais tias tag nrho cov board preheating tsis tau, lub zos preheating yuav siv tau. Siv cov txheej txheem qis- ceev txiav kom tsis txhob tawg tawg, txawm hais tias nws tsis zoo li kev ua kom sov. Preheat daim kab xev txiav nrog nplaim taws ua ntej txiav, thiab qhov kub thiab txias yuav tsum ncav cuag li 100 degree. Nws qhov siab tshaj plaws txiav ceev nyob ntawm cov khoom siv steel phaj thiab thickness.
5. Preheating thiab qis-txoj kev ceev hluav taws xob kuj tuaj yeem siv ua ke, uas tuaj yeem txo qhov tshwm sim ntawm kev txiav cov kab nrib pleb.
