Daim ntawv thov qhov zoo ntawm ob-txheej txhuas txheej
Ob chav xim txheej txhuas coj los ua ntsuab yog cov khoom siv ntsuab zoo nkauj nrog kev tiv thaiv ib puag ncig, ua haujlwm ruaj thiab muaj cov yam ntxwv zoo nkauj.
1. Nws tsis yooj yim yuav tsum muaj qhov corroded. Muab ob npaug rau-txheej txhuas siv yog cov copolymer tsim los ntawm cov khoom siv polymer thiab cov khoom siv zoo aluminium. Nws tsis yooj yim rau corrode thiab tiv taus cov acids thiab alkalis. Tsis muaj teeb meem dab tsi ntawm cov dej haus, no cov khoom siv txhuas cov ntaub tuaj yeem siv tau. Nws yuav tsis yooj yim mus corrode. Lub txee lub neej kuj ntev dua, yog li nws siv dav;
2. Qhov zoo yog lub teeb heev, uas yog qhov zoo kom zoo dua. Lub teeb yuag txhais tau tias yooj yim tuav, cov neeg siv khoom tau yooj yim tuav nws, thiab nws yooj yim dua thaum ua, txuag nqi;
3. Zoo nkauj, vim hais tias ob txoj hlua xim siv ob npaug tuaj yeem ua toned raws li tus qauv tsim, thiab saum npoo du, nws tuaj yeem ua rau hauv cov xim, uas zoo heev, thiab nws tsis yooj yim kom poob tom qab xim;
4. Cov cuab yeej zoo tsis kam, siab zoo, tsis yooj yim rau puas, thiab lub zog siab tsis kam, yog li nws zoo heev thiab yog qhov zoo los tuav. Yog tias thev tshuab ua hauj lwm zoo, nws yuav tsis tuaj yeem puas yooj yim.
Qhov ob npaug-xim av txhuas txoj hlua khi muaj ntau qhov zoo ntxiv rau qhov peb tau kawm tsis yooj yim rau deform, tsis yooj yim rau kev puas tsuaj, thiab tsis yog yooj yim kom xeb. Peb yuav tsum tau tshawb nrhiav tas li nyob rau hauv kev siv. Vam tias hnub no' s sib koom yuav pab tau txhua tus.