Kev xuas nrig ntaus yog ib txoj kev ua hlau uas siv ntau yam khoom siv, suav nrog cov hlau carbon, cov hlau galvanized, cov hlau tsis xeb, txhuas thiab tooj liab. Cov khoom siv no muaj lawv tus kheej cov yam ntxwv thiab qhov zoo hauv kev ua cov stamping.

Ua ntej tshaj plaws, cov hlau carbon yog cov khoom siv xuas nrig ntaus uas siv ntau nrog kev ua haujlwm zoo thiab lub zog, thiab nws tsim nyog rau kev tsim ntau yam khoom siv thiab cov khoom sib xyaw. Cov hlau galvanized muaj cov yam ntxwv zoo tiv thaiv xeb thiab tsim nyog rau kev tsim cov khoom uas xav tau kev tiv thaiv xeb, xws li cov khoom siv hauv tsheb thiab cov khoom siv hauv tsev.

Cov hlau tsis xeb muaj cov yam ntxwv ntawm kev tiv taus corrosion, tiv taus kub siab thiab zoo nkauj, thiab nws tsim nyog rau kev tsim cov khoom siv hauv chav ua noj, cov khoom siv rooj tog, kho kom zoo nkauj thiab lwm yam khoom. Aluminium yog lub teeb yuag, muaj kev ua tau zoo thermal conductivity thiab cov khoom kho kom zoo nkauj, thiab nws tsim nyog rau kev tsim cov khoom siv aerospace, cov khoom siv tsheb thiab cov khoom siv hluav taws xob.

Tooj liab muaj hluav taws xob zoo thiab thermal conductivity thiab tsim nyog rau kev tsim cov khoom xws li cov khoom siv hluav taws xob, cov xov hlau, thiab cov radiators. Yog li ntawd, raws li cov khoom xav tau sib txawv thiab cov kev xav tau engineering, cov ntaub ntawv tsim nyog tuaj yeem xaiv rau kev ua haujlwm xuas nrig kom ua tau raws li cov khoom ua tau zoo thiab cov kev xav tau zoo. Hauv kev siv ua haujlwm, kev xaiv cov ntaub ntawv yuav tsum xav txog cov yam ntxwv xws li cov khoom siv kho tshuab, kev tiv thaiv corrosion, kev ua haujlwm, thiab tus nqi kom ntseeg tau tias cov khoom kawg muaj kev ua tau zoo thiab kev lag luam zoo.