Ncaj seam welded yeeb nkab nto quenching thiab tempering kho cua sov feem ntau yog ua los ntawm induction cua sov los yog nplaim hluav taws kub. Lub ntsiab technical parameters yog deg hardness, lub zos hardness thiab zoo hardened txheej tob. Kev kuaj Hardness tuaj yeem siv Vickers hardness tester, Rockwell lossis nto Rockwell hardness tester kuj siv tau. Thaum tshav kub kho cov txheej txheem yog tuab, Rockwell hardness tester kuj tseem siv tau.

Yog hais tias lub zos hardness ntawm qhov chaw yuav tsum tau siab, induction quenching thiab lwm yam yuav siv tau rau lub zos quenching tshav kub kho. Xws li ib tug ncaj seam welded yeeb nkab feem ntau yog cim nrog qhov chaw ntawm lub zos quenching tshav kub kev kho mob thiab lub zos hardness nqi ntawm daim duab. Ncaj seam welded yeeb nkab hardness kuaj yuav tsum tau ua nyob rau hauv lub cheeb tsam.

Peb qhov hardness qhov tseem ceeb ntawm Vickers, Rockwell thiab Surface Rockwell tuaj yeem hloov pauv tau yooj yim rau ib leeg thiab hloov mus rau cov qauv, kos duab lossis cov nqi hardness xav tau los ntawm cov neeg siv.