Tsawg alloy steel thiab siab alloy steel yog ob qho khoom siv hauv cov qauv steel. Qhov sib txawv ntawm lawv yog cuam tshuam los ntawm lawv cov muaj pes tsawg leeg, kev ua tau zoo thiab kev siv.
1. Khoom siv
1. Cov khoom xyaw sib txawv
Cov ntsiab lus carbon ntawm cov hlau tsis tshua muaj hlau feem ntau yog nyob nruab nrab ntawm 0.25% thiab 0.8%, thiab feem ntau ntawm cov hlau alloying yog me me. Cov ntsiab lus ntawm cov ntsiab lus no feem ntau tsawg dua 3%; thaum cov ntsiab lus carbon ntawm high-alloy steel feem ntau yog 0.5%-2.0%, thiab cov ntsiab lus alloying yog Qhov feem ntau loj thiab cov ntsiab lus siab dua 3%.
2. Sib txawv hardness
Cov hlau tsis tshua muaj qis qis thiab feem ntau tuaj yeem ncav cuag qhov tawv ntawm 60HRC hauv lub xeev forged. High-alloy steel muaj qhov hardness ntau dua thiab tuaj yeem ncav cuag qhov nyuaj ntawm ntau dua 70HRC hauv lub xeev forged.
2. Kev ua tau zoo
1. Txawv elongation tus nqi
Cov hlau tsis tshua muaj elongation ntau dua, feem ntau ncav cuag 25% mus rau 45%, thaum cov hlau alloy siab muaj qhov elongation tsawg heev, feem ntau tsuas yog 15% mus rau 25%.
2. Kev kho cua sov sib txawv
Cov hlau tsis tshua muaj hlau yog cov khoom siv hlau nrog cov txheej txheem kev kho cua sov. Nws feem ntau ua rau peb qhov kev kho cua sov, uas yog tempering, quenching thiab tempering. High-alloy steel yog cov khoom siv hlau uas yooj yim rau kev kho cua sov. Nws tsuas yog xav tau ob kauj ruam ntawm kev kho mob, uas yog quenching thiab tempering.
3. Scope ntawm kev siv
1. Tsawg alloy hlau
Cov hlau tsis tshua muaj hlau feem ntau yog siv rau hauv kev tsim khoom, engineering machinery, khoom siv hauv tsev thiab lwm yam. Nws tuaj yeem siv los tsim cov khoom xws li cov hniav, pob khawm, bearings, thiab lwm yam. Nws kuj tseem siv tau los tsim cov khoom siv xws li rims, pin cores, thiab springs.
2. High alloy hlau
High-alloy steel muaj xws li stainless hlau thiab hlau alloy. Lawv feem ntau siv rau hauv cov xwm txheej uas yuav tsum tau muaj kev tiv thaiv oxidation thiab corrosion. Lawv tuaj hauv ntau hom thiab tuaj yeem ua tau raws li qhov xav tau ntawm cov neeg siv khoom. Piv txwv li, stainless hlau tuaj yeem siv hauv tsev cog khoom los tiv thaiv huab cua nkag. Accumulated noo noo corrodes; hlau hlau tuaj yeem siv los tsim cov khoom siv hluav taws xob tiv thaiv thiab corrosion-resistant xws li cov hlab ntsha siab.
