Yuav ua li cas tiv thaiv trachoma defects hauv castings?

Cov ntsiab lus hauv qab no tuaj yeem tiv thaiv cov kab mob trachoma tsis xws luag hauv castings.

1. Cov khib nyiab thiab ua npuas ncauj oxides yuav tsum tau muab ntxuav kom huv si raws sijhawm.

2. Xaiv tus neeg sawv cev tso tawm zoo. Tus neeg sawv cev raug xaiv yuav tsum tsis txhob tsim cov roj hauv kev tuag casting thiab muaj kev tso tawm zoo.

3. Xyuas kom meej tias cov pwm feem ntau tsis thaiv thiab cov pa tawm yog du.

4. Kho qhov tuag casting tsis, hom tuag casting thiab filling ceev yuav tsum tsis txhob ceev dhau los tiv thaiv huab cua nkag.

5. Hauv kev tsim cov khoom lag luam thiab cov pwm, yuav tsum tau them nyiaj rau kev siv cov tub ntxhais-rub cov cua txias kom txo tau qhov tsis zoo ntawm cov phab ntsa ntau dhau.

6. Txhim kho qhov pores uas feem ntau tshwm sim hauv qhov chaw ruaj khov los ntawm pwm thiab tsim.