Qhov zoo ntawm cov kav dej tooj liab yog dab tsi?

1. Durability:Cov kav dej tooj liabmuaj cov tshuaj lom neeg ruaj khov.Nws ua ke nrog txias, kub tsis kam, siab tsis kam, corrosion kuj thiab hluav taws kub, thiab tuaj yeem siv tau ntev hauv qhov chaw sib txawv.
2. Muaj kev nyab xeeb thiab txhim khu kev qha: Cov kav dej tooj liab ua ke nrog qhov zoo ntawm cov kav hlau thiab cov kav hlau tsis muaj hlau.Nws yog ib qho nyuaj tshaj li cov raj yas, thiab muaj lub zog siab ntawm cov hlau zoo tib yam (lub zog ntawm txias-rub cov kav dej tooj liab yog sib npaug rau lub zog ntawm cov yeeb nkab steel nrog tib phab ntsa tuab);Nws yog qhov yooj yim rau khoov dua li cov hlau zoo tib yam, muaj qhov zoo toughness thiab siab ductility, thiab muaj cov zoo heev vibration resistance, cuam tshuam tsis kam thiab antifreeze thiab tsam plab.
3. Ntau yam hloov kho cov neeg ua haujlwm, cov khoom siv ntxiv, cov khoom siv ntxiv thiab lwm yam khoom siv tshuaj lom neeg ntawm cov kav dej yas hauv cov kav tooj liab.
4. Copper yeeb nkab kev sib txuas kev siv zog: tooj liab yeeb nkab txuas cov kav dej tooj liab nrog kev sib txuas muaj zog.
5. Tus nqi ntawm cov kav dej tooj liab yog kev lag luam.Nws tuaj yeem txuag tau ntau cov ntaub ntawv thaum lub sij hawm installation ntawm cov kav dej tooj liab.Cov kav dej tooj liab tau yooj yim ua.Cov kav dej tooj liab yog lub teeb yuag.Piv nrog rau lwm cov hlau dub threaded kav nrog tib txoj kab uas hla, lub raj tooj liab tsis xav tau lub thickness ntawm cov hlau dub.Tus nqi tsheb thauj mus los ntawm kev teeb tsa ntawm cov raj tooj liab yog qis dua, thiab kev saib xyuas kuj yooj yim heev.Cov kav dej tooj liab kuj muaj cov yam ntxwv uas tuaj yeem hloov cov duab ntawm qhov xav tau, yog li lub raj tooj liab tuaj yeem khoov lossis deformed thiab yooj yim rau kev txuas.Vim tias cov yeeb nkab tooj liab tuaj yeem deform dawb, cov yeeb nkab tooj liab kuj tau ua rau hauv lub raj tooj liab.Lwm feature ntawm tooj liab yog corrosion kuj thiab ib puag ncig tiv thaiv.Nws tau hais tias archaeologists tau pom cov kav dej tooj liab nrog keeb kwm ntawm ntau txhiab xyoo hauv Egypt thiab cov pyramids.Cov dej hauv cov tooj liab tuaj yeem siv tsis tu ncua.Yog li ntawd, qhov zoo ntawm cov kav dej tooj liab tuaj yeem raug suav hais tias yog kev lag luam, kev sib txuas yooj yim, kev nyab xeeb thiab corrosion kuj.