Hauv ob peb xyoos dhau los, muaj ib qho ntawm cov qauv kub los txhim kho cov qhov rooj ntoo zawv zawg hauv tsev thiab chaw ua haujlwm. Zawv zawg Barn Qhov rooj feem ntau yog xeb nyob rau hauv tsos, thiab lawv tus qauv tsim yog ua qauv tom qab lawv ua ntej ua ntej ua ntej. "Lub qhov rooj barn" feem ntau siv los ua cov lus dav dav rau cov chav zawv zawg ua haujlwm thiab zoo nkauj. Barn qhov rooj qhov rooj ntawm cov khoom sib txawv muab cov kev sib txawv thiab nkag rau ntau lab ntawm tsev neeg ntawm cov nqi sib txawv.
Peb lub tsev pheeb suab pob qhov rooj muaj 3 cov ntaub ntawv, uas yog stainless hlau, carbon hlau thiab aluminium alloy. Lawv muaj lawv tus kheej cov txiaj ntsig thiab qhov tsis zoo, cov hauv qab no yog kwv yees sib txawv:
Price: stainless steel>aluminum alloy>Cov hlau hlau. Tsis muaj kev ntseeg tias qhov no yog txiav txim siab los ntawm tus nqi ntawm cov hlau.
Hardness: stainless steel = carbon steel>Aluminium alloy. Qhov no nyob ntawm qhov xwm ntawm cov hlau. Aluminium yog mos, Txawm hais tias nws tau zoo heev txhim kho los ntawm kev ua ntawm txhuas alloy.
Corrosion resistance: stainless steel>aluminum alloy>Cov hlau hlau. Nws tuaj yeem pom los ntawm lub npe uas Stainless hlau yog tus thawj coj hauv kev tiv thaiv xeb, aluminoy alloy yog thib ob, thiab carbon hlau tsuas yog qhov thib peb. Cov pa roj carbon tau yuav tsum tau tshuaj tsuag tawm kev kho, txhuas alloy yuav tsum tau nyob saum npoo oxidized. Lub stainless hlau tsuas yog xav tau polished.
Feem ntau hais lus, qhov zoo zoo yog ntawm chav kawm stainless hlau nplhaib kho vajtse, tab sis tus nqi yog siab. Txhuas alloy thiab carbon hlau muaj lawv tus kheej zoo. Aluminium alloy yog lub teeb thiab haum rau cov tsheb thauj mus los huab cua, tab sis cov khoom siv hluav taws xob muaj txiaj ntsig yog cov hlau.
