Cov hnab looj tes los tiv thaiv thiab muaj kev tiv thaiv:
Cov hnab looj tes los tiv thaiv los ntawm cov khoom siv tshwj xeeb los tiv thaiv zoo li qub. Lub hauv paus yog tsim los ntawm roj hmab thiab cov fibers hluav taws xob. Hnub no kuv qhia rau koj rau 6 yam kev ceev faj thaum siv cov hnab looj tes tiv thaiv los tiv thaiv, raws li nram no:
1. Kev tiv thaiv cov khoom siv sib tiv thaiv zoo li qub yuav tsum tau kuaj xyuas cov hluav taws xob hluav taws xob tsis tu ncua. Yog tias lawv tsis ua raws li cov kev cai, lawv yuav siv tsis tau.
2. Thaum cov hnab looj tes tiv thaiv los tiv thaiv kom muaj oxidizing acids xws li nitric acid, cov hnab looj tes tiv thaiv los ntawm qub yuav ua rau brittleness thiab muaj suab nrov vim muaj zog oxidation.
3, looj hnab looj tes rau cov tawv nqaij tsis muaj zog, tsis muaj concentration sulfuric acid thiab ntau yam ntsev, yuav tsum tsis txhob raug cov kab mob oxidizing.
4. Muaj ntau ntau yam ntawm cov hnab looj tes tiv thaiv los ntawm qub, yog li ntawd peb yuav tsum xaiv cov hnab looj tes tiv thaiv los ntawm lawv cov khoom tiv thaiv meej.
5, cov hnab looj tes tiv thaiv los tiv thaiv yuav tsum tau ua tib zoo kuaj xyuas ua ntej siv los saib seb qhov saum npoo puas.
6. Cov hnab looj tes tiv thaiv xws li rubber thiab yas yuav tsum tau muab yaug thiab qhuav tom qab siv tas. Tsis txhob kub kub thaum lub sij hawm cia thiab txhuam ntsev hmoov ntawm cov khoom kom tiv thaiv kev nplaum.