Rau lub ntsiab lus tseem ceeb uas yuav tsum nco ntsoov thaum siv thiab tswj tus kheej-drilling screws

1. Rinsing tus kheej-drilling ntsia hlau yog qhov tseem ceeb thiab yuav tsum tau ua tib zoo saib xyuas, vim tias cov seem yuav nyob ntawm nws qhov chaw. Cov kauj ruam yaug no yuav tsum tau ua tom qab ntxuav nrog tus neeg saib xyuas silicate.

2. Kev stacking kom zoo yog qhov tseem ceeb thaum lub sij hawm tempering ntawm tus kheej-drilling ntsia hlau; txwv tsis pub, me ntsis oxidation yuav tshwm sim hauv cov roj quenching.

3. Cov tsos ntawm cov phosphide residue nyob rau saum npoo ntawm cov ntsia hlau muaj zog qhia tias tsis txaus siab rau kev nthuav dav thaum kuaj xyuas (point 1).

4. Blackening ntawm cov khoom nto vim yog tshuaj lom neeg cov tshuaj tiv thaiv qhia tias tsis tiav kev kho cua sov thiab tshem tawm tsis tiav ntawm alkaline residues. 5. Cov txheej txheem yuav xeb thaum yaug, thiab cov dej siv los yaug yuav tsum tau hloov ntau zaus.

6. Cov xeb ntau dhau qhia tias cov roj quenching tau siv ntev dhau lawm thiab yuav tsum tau hloov cov roj tshiab.