Tongda Steel yog cov chaw tsim khoom lag luam ntawm cov hlab ntsha capillary.
Lub hardness ntawm tag nrho cov mos capillary raj yog dab tsi? Piv txwv li, rau 2 hli txoj kab uas hla raj, nws Vickers hardness nyob rau hauv tag nrho cov mos mos lub xeev yog 180 degrees. Nws tuaj yeem khoov tau yooj yim ntawm tes yam tsis muaj kev tawg, flattening, lossis tawg.
Peb cov hlab tag nrho kuj ua tau raws li cov neeg siv khoom xav tau rau kev ncaj thiab muaj qhov ci ntsa iab heev. Qhov no yog vim peb siv lub qhov cub ci ntsa iab rau annealing, ua raws li kev ncaj thiab polishing. Cov neeg siv khoom xav tau, thov hu rau peb.
