Classification ntawm hlau

Hlau, raws li cov khoom siv hlau dav siv hauv kev tsim kho, tshuab, tsheb thauj mus los thiab lwm yam, ua lub luag haujlwm tseem ceeb. Nws yog ib qho hlau uas ua los ntawm cov hlau thiab cov pa roj carbon monoxide ua cov ntsiab lus tseem ceeb los ntawm kev kub kub smelting, refining, dov thiab lwm yam txheej txheem. Hlau muaj zog zoo, toughness, plasticity, vuam kev ua tau zoo thiab corrosion kuj, muab kev txhawb zog rau kuv lub teb chaws txoj kev lag luam thiab kev loj hlob.

Muaj ntau hom hlau. Raws li cov ntsiab lus ntawm cov pa roj carbon, cov ntsiab lus alloy, cov txheej txheem tsim khoom, thiab lwm yam, nws tuaj yeem muab faib ua carbon steel, qis alloy steel, stainless hlau, cuab yeej hlau thiab lwm yam. Ntawm lawv, carbon steel yog siv dav tshaj plaws, feem ntau suav nrog kev tsim kho steel, choj hlau, nkoj hlau, thiab lwm yam .; low alloy steel muaj lub zog siab thiab zoo vuam kev ua tau zoo, haum rau cov tsev siab siab, cov choj loj thiab lwm qhov chaw; stainless hlau yog dav siv nyob rau hauv cov khoom siv kho mob, ua zaub mov thiab lwm yam lag luam vim nws zoo heev corrosion kuj.

(Kuv). Kev faib tawm los ntawm kev siv

Raws li kev siv cov hlau, nws tuaj yeem muab faib ua peb pawg: cov qauv hlau, cov cuab yeej hlau thiab cov hlau tshwj xeeb.

1. Cov qauv hlau:

(1). Hlau siv los ua ntau yam tshuab. Nws suav nrog carburizing steel, quenched thiab tempered steel, caij nplooj ntoos hlav steel thiab dov bearing steel.

(2). Hlau siv rau engineering cov qauv. Nws suav nrog carbon steel A, B, tshwj xeeb hlau thiab cov hlau tsis tshua muaj hlau.

2. Cov cuab yeej steel: steel siv los ua ntau yam cuab yeej. Raws li kev siv cov cuab yeej sib txawv, nws tuaj yeem muab faib ua cov cuab yeej txiav steel, pwm steel thiab ntsuas cov cuab yeej steel.

3. Kev ua haujlwm tshwj xeeb steel: steel nrog tshwj xeeb lub cev thiab tshuaj. Nws tuaj yeem muab faib ua cov hlau tsis muaj steel, cov hlau tsis muaj cua sov, hnav-tiv taus hlau, hlau nplaum hlau, thiab lwm yam.

(II). Classification los ntawm cov tshuaj muaj pes tsawg leeg

Raws li cov tshuaj muaj pes tsawg leeg ntawm cov hlau, nws tuaj yeem muab faib ua ob pawg: carbon steel thiab alloy steel.

Cov pa roj carbon steel: Raws li cov ntsiab lus carbon, nws tuaj yeem muab faib ua cov pa roj carbon tsawg (cov ntsiab lus carbon tsawg dua lossis sib npaug rau {{0}}}.25%); nruab nrab carbon steel (0.25% < carbon cov ntsiab lus < 0.6%); high carbon steel (cov ntsiab lus carbon ntau dua lossis sib npaug li 0.6%).

Alloy steel: Raws li cov ntsiab lus ntawm cov ntsiab lus alloy, nws tuaj yeem muab faib ua cov hlau tsis tshua muaj hlau (tag nrho cov ntsiab lus alloy tsawg dua lossis sib npaug li 5%); nruab nrab alloy steel (tag nrho cov ntsiab lus alloy cov ntsiab lus=5%--10%); siab alloy steel (tag nrho cov ntsiab lus alloy ntsiab> 10%). Tsis tas li ntawd, raws li kev sib txawv ntawm cov ntsiab lus tseem ceeb hauv cov hlau, nws tuaj yeem muab faib ua manganese steel, chromium steel, chromium-nickel steel, chromium-manganese-titanium steel, thiab lwm yam.

(III) Kev faib tawm los ntawm qhov zoo

Raws li cov ntsiab lus ntawm cov teeb meem impurities phosphorus thiab sulfur hauv hlau, nws tuaj yeem muab faib ua cov hlau zoo tib yam (phosphorus cov ntsiab lus tsawg dua lossis sib npaug rau {{0}}}.045%, cov ntsiab lus sulfur tsawg dua los yog sib npaug rau 0.055% lossis phosphorus thiab sulfur cov ntsiab lus tsawg dua lossis sib npaug li 0.050%); cov hlau zoo (phosphorus thiab sulfur cov ntsiab lus sulfur tsawg dua lossis sib npaug li 0.030%).

Tsis tas li ntawd, raws li hom smelting rauv, steel tau muab faib ua qhib-hearth steel (acid open-hearth, yooj yim qhib-hearth), cua converter steel (acid converter, yooj yim converter, oxygen saum-blown converter steel) thiab hluav taws xob. rauv hlau. Raws li qib ntawm deoxidation thaum smelting, steel yog muab faib ua rimmed steel (tsis tiav deoxidation), tua steel (kuj ua tiav deoxidation) thiab semi-tua steel.

Thaum naming steel khoom, steel mills feem ntau muab peb qhov kev faib tawm txoj kev siv, muaj pes tsawg leeg thiab zoo. Piv txwv li, steel yog hu ua dog dig carbon structural steel, high-zoo carbon structural steel, carbon cuab yeej steel, advanced high-zoo carbon cuab tam steel, alloy structural steel, alloy cuab tam steel, thiab lwm yam. Tsawg dua los yog sib npaug rau 0 .040%)); Cov hlau zoo (phosphorus cov ntsiab lus tsawg dua lossis sib npaug rau 0.035%,

IV. Mechanical zog ntawm cov ntaub ntawv hlau

Cov khoom ntawm cov khoom siv hlau feem ntau muab faib ua ob pawg: cov khoom siv thiab cov khoom siv. Cov txheej txheem hu ua cov khoom xa mus rau cov khoom ntawm cov khoom siv hlau raws li cov txheej txheem txias thiab kub ua haujlwm thaum lub sijhawm ua thiab tsim khoom ntawm cov khoom siv tshuab. Qhov zoo ntawm cov txheej txheem ntawm cov khoom siv hlau txiav txim siab nws qhov kev hloov pauv rau kev ua thiab tsim thaum lub sijhawm tsim khoom. Vim muaj kev sib txawv ntawm kev ua haujlwm, cov txheej txheem yuav tsum tau sib txawv, xws li cov khoom siv casting, weldability, forgeability, thermal kho zog, txiav processability, thiab lwm yam. ntawm cov khoom siv kho tshuab, uas suav nrog cov khoom siv kho tshuab, cov khoom siv lub cev, cov khoom siv tshuaj lom neeg, thiab lwm yam. Qhov zoo ntawm kev siv cov khoom siv hlau txiav txim siab nws qhov kev siv thiab kev pabcuam lub neej.

Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev hloov pauv hauv kev xav tau ntawm kev lag luam, kev txhim kho yav tom ntej ntawm steel qhia cov yam ntxwv tseem ceeb hauv qab no:

Ua ntej, ntsuab kev loj hlob. Tawm tsam keeb kwm yav dhau los ntawm kev nce thoob ntiaj teb kev paub txog ib puag ncig, kev lag luam steel yuav them nyiaj ntau dua rau kev txuag hluav taws xob, txo qis emissions thiab cov peev txheej rov ua dua tshiab. Nyob rau hauv lub neej yav tom ntej, steel ntau lawm yuav txhawb nqa huv huv technology, txo lub zog noj thiab pa phem emissions, tsim low-carbon metallurgical technology, thiab tsim ntau ntsuab thiab environmentally phooj ywg steel cov khoom kom tau raws li cov kev cai ntawm sustainable kev loj hlob.

Thib ob, kev ua haujlwm siab. Txhawm rau ua kom tau raws li qhov xav tau ntawm kev ua lag luam uas tau nce zuj zus, cov khoom siv steel yuav txhim kho nyob rau hauv cov kev taw qhia ntawm kev ua haujlwm siab thiab zoo. Qhov no txhais tau hais tias cov hlau yuav muaj zog dua, zoo dua toughness, zoo dua corrosion kuj, thiab lwm yam. Los ntawm kev siv technology tshiab, ntau dua tshiab alloy steels, tshwj xeeb steels thiab lwm yam high-kev ua tau zoo steel cov ntaub ntawv tau tsim kom tau raws li cov kev xav tau ntawm high-end teb xws li aerospace, tub rog kev lag luam thiab marine engineering.

Thib peb, kev tsim khoom ntse. Kev lag luam steel yuav sib koom ua ke nrog cov thev naus laus zis niaj hnub xws li cov ntaub ntawv thev naus laus zis, Internet ntawm Yam, thiab cov ntaub ntawv loj los txhawb kev tsim khoom ntse. Los ntawm cov khoom siv raw khoom, kev tswj cov txheej txheem ntau lawm rau kev muag khoom, peb paub txog kev tswj hwm kev txawj ntse ntawm tag nrho cov txheej txheem, txhim kho kev tsim khoom, txo cov nqi, thiab txhim kho cov khoom zoo.

Thaum kawg, kev pabcuam customized. ntsib kev sib tw ua lag luam thiab ntau tus neeg xav tau kev pab, cov tuam txhab steel yuav maj mam hloov mus rau cov neeg muag khoom uas muab cov kev pabcuam tus kheej thiab kho. Los ntawm kev ntxiv dag zog rau kev koom tes nrog cov neeg siv qis qis, peb muab cov kev daws teeb meem tshwj xeeb rau kev lag luam thiab thaj chaw sib txawv los txhim kho tus nqi ntxiv thiab kev lag luam kev sib tw ntawm peb cov khoom.

Nyob rau hauv luv luv, yav tom ntej txoj kev loj hlob qauv ntawm steel yuav yog ib tug organic ua ke ntawm ntsuab, kev ua tau zoo, kev txawj ntse thiab customization, uas yuav pab txhawb txoj kev hloov thiab kho dua tshiab ntawm kuv lub teb chaws txoj kev lag luam steel thiab ua tiav kev loj hlob zoo.