Hlau hlau, manganese hlau, stainless hlau, tooj dag, bronze, dawb tooj liab, soldering tin, duralumin, 18K kub, 18K dawb kub, thiab lwm yam.
hlau
piav qhia luv luv
Hlau thiab hlau yog cov hlau uas muaj hlau thiab C, Si, Mn, P, S thiab lwm yam khoom me me. Ntxiv rau Fe, cov ntsiab lus ntawm C plays lub luag haujlwm tseem ceeb hauv cov khoom siv hlau, yog li nws tau sau npe hu ua hlau carbon alloy. Nws yog cov khoom siv hlau tseem ceeb tshaj plaws thiab feem ntau siv hauv engineering technology.
Classification thiab xwm
Raws li cov ntsiab lus sib txawv, cov hlau carbon hlau tuaj yeem muab faib ua hlau thiab npua hlau. Hlau yog hlau carbon alloy nrog cov ntsiab lus carbon ntawm 0.03 feem pua ~ 2 feem pua . Cov pa roj carbon steel yog cov feem ntau siv cov hlau zoo tib yam, uas yooj yim rau smelt, yooj yim rau txheej txheem, tsis tshua muaj nqi, thiab muaj peev xwm ua tau raws li qhov yuav tsum tau siv nyob rau hauv feem ntau, yog li nws yog dav siv. Raws li cov ntsiab lus sib txawv, carbon steel muab faib ua cov pa roj carbon tsawg, nruab nrab carbon steel thiab siab carbon steel.
Nrog rau qhov nce ntawm cov ntsiab lus carbon, hardness ntawm carbon steel nce thiab toughness txo. Alloy steel, tseem hu ua cov hlau tshwj xeeb, yog ntxiv nrog ib lossis ntau lub ntsiab lus ntawm cov pa roj carbon steel, yog li muaj qee cov khoom tshwj xeeb, xws li siab hardness, siab hnav tsis kam, siab toughness, corrosion kuj, thiab lwm yam. Alloy ntsiab lus feem ntau ntxiv. rau hlau xws li Si, W, Mn, Cr, Ni, Mo, V, Ti, thiab lwm yam. Tuam Tshoj yog nplua nuj nyob rau hauv alloy steel kev pab. Ntxiv rau qhov tsis txaus ntawm Cr thiab Co thiab qib qis ntawm Mn, cov reserves ntawm W, Mo, V, Ti thiab cov hlau tsis tshua muaj hauv ntiaj teb yog siab.
Hais txog npua hlau
Npua hlau yog tawv thiab nkig, tab sis resistant rau siab thiab puas. Grey hlau thiab ductile hlau. Cov pa roj carbon hauv cov hlau dawb yog silvery dawb nrog Fe3C tawg. Nws yog tawv thiab nkig thiab tsis tuaj yeem machined. Nws yog cov khoom siv raw rau steelmaking, yog li nws tseem hu ua steelmaking npua hlau.
Cov pa roj carbon faib rau hauv daim ntawv ntawm flake graphite yog hu ua grey hlau. Cov pob txha yog nyiaj grey, yooj yim txiav, yooj yim rau cam khwb cia, thiab hnav-resistant. Yog tias cov pa roj carbon tau faib ua spheroidal graphite, nws yog hu ua nodular cam khwb cia hlau, thiab nws cov khoom thiab kev ua tau zoo nyob ze rau cov hlau. Tshwj xeeb cam khwb cia hlau tuaj yeem tau los ntawm kev ntxiv cov ntsiab lus tshwj xeeb alloy rau cam khwb cia hlau. Yog tias Cr ntxiv, qhov hnav tsis kam tuaj yeem txhim kho tau zoo, thiab nws muaj cov ntawv thov tseem ceeb hauv cov xwm txheej tshwj xeeb.
ferrosilicon
Ferrosilicon yog ua los ntawm coke, steel chips, quartz (los yog silica) ua raw khoom los ntawm hluav taws xob rauv smelting. Silicon thiab oxygen tuaj yeem yooj yim ua kom cov silicon dioxide. Yog li ntawd, ferrosilicon feem ntau yog siv los ua deoxidizer hauv steelmaking. Nyob rau tib lub sijhawm, txij li cov cua kub ntau tawm thaum SIO2 tsim tawm, nws kuj tseem muaj txiaj ntsig kom nce qhov kub ntawm cov hlau molten thaum deoxidization. Ferrosilicon yog siv los ua cov khoom sib xyaw ua ke.
Nws yog dav siv nyob rau hauv tsawg alloy structural steel, bonding steel, caij nplooj ntoos hlav steel, bearing steel, tshav kub-resistant steel thiab hluav taws xob silicon steel. Tsis tas li ntawd, ferrosilicon feem ntau yog siv los txo tus neeg sawv cev hauv ferroalloy ntau lawm thiab kev lag luam tshuaj. Cov ntsiab lus silicon yog 95 feem pua - 99 feem pua. Ntshiab silicon feem ntau yog siv los tsim monocrystalline silicon los yog npaj cov hlau tsis muaj hlau.
ferromanganese
Ferromanganese yog tsim los ntawm manganese ore. Melted nyob rau hauv lub qhov cub tawg los yog hluav taws xob rauv. Ferromanganese kuj yog ib qho deoxidizer feem ntau siv hauv cov hlau. Manganese kuj muaj kev ua haujlwm ntawm desulfurization thiab txo cov teebmeem ntawm leej faj. Yog li ntawd, yuav luag txhua yam hlau thiab cam khwb cia hlau muaj qee qhov nyiaj ntawm manganese. Ferromanganese kuj tseem siv los ua tus neeg sawv cev tseem ceeb. Nws yog dav siv nyob rau hauv structural steel. Cov cuab yeej steel, stainless hlau tshav kub-resistant. Hnav resistant steel thiab lwm yam hlau alloys.
