Khoom Taw Qhia

FGS370-17 poob ciab peev casting ntawm ductile hlau

Pig hlau yog cov hlau-carbon alloy nrog cov ntsiab lus carbon ntau dua 2%, thiab cov ntsiab lus carbon ntawm cov npua hlau yog feem ntau 2.11% -4.3%, thiab muaj C, Si, Mn, S, P thiab lwm yam, uas yog cov khoom ntawm smelting hlau ore los ntawm blast furnace. Raws li cov ntaub ntawv sib txawv ntawm cov pa roj carbon monoxide hauv npua hlau, nws tuaj yeem muab faib ua steelmaking npua hlau, cam khwb cia npua hlau thiab ductile hlau. Cov khoom ntawm npua hlau yog tawv, hnav-tiv taus thiab zoo castability, tab sis cov npua hlau yog nkig thiab tsis tuaj yeem forged.

1. Npua hlau yog hlau-carbon alloynrog cov ntsiab lus carbon ntau dua 2.11%, thiab cov ntsiab lus carbon ntawm cov npua hlau yog feem ntau 2.11% --4.3%, thiab muaj C, Si, Mn, S, P thiab lwm yam. Nws yog ib yam khoom ntawm hlau ore smelting los ntawm blast furnace. Raws li cov ntaub ntawv sib txawv ntawm carbon hauv npua hlau, nws tuaj yeem muab faib ua steelmaking npua hlau thiab casting npua hlau.

(1) Cov ntsiab lus silicon ntawm steelmaking npua hlau yog tsawg, feem ntau tsis ntau tshaj 1.75%. Nws yog cov khoom siv tseem ceeb ntawm qhib-hearth thiab converter steelmaking, suav txog 80% txog 90% ntawm npua hlau ntau lawm. Steelmaking npua hlau yog tawv thiab nkig, hlau thiab carbon yog nyob rau hauv ib tug ua ke lub xeev, nyob rau hauv daim ntawv ntawm cementite (Fe3C), thiab nws puas yog silver-dawb, yog li nws kuj hu ua dawb hlau. Yob, pear sib faib hlau thiab lwm yam yog hlau dawb.

(2) Cov ntsiab lus ntawm silicon ntawm cam khwb cia hlau yog loj heev, feem ntau 1.25% mus rau 3.6%. Vim nws qhov qis melting point thiab zoo fluidity, nws yog feem ntau siv los cam khwb cia ntau yam castings, yog li nws tseem hu ua cam khwb cia hlau. Cov pa roj carbon nyob rau hauv cam khwb cia hlau muaj nyob rau hauv daim ntawv ntawm graphite, thiab nws cov pob txha yog grey, mos thiab yooj yim txiav, yog li nws tseem hu ua grey cam khwb cia hlau. Xws li lub txaj, lub thawv, cov yeeb nkab, cov yeeb nkab fittings thiab ntau yam connectors yog ua los ntawm cam khwb cia npua hlau.

2. Kev faib tawm:Npua hlau yog cov hlau-carbon alloy nrog cov ntsiab lus carbon ntawm 2.11%-6.69% thiab muaj ntau cov hlau tsis huv. Nws tuaj yeem ua kom zoo rau hauv cov hlau los ntawm kev txo cov ntsiab lus carbon. Cov impurity ntsiab ntawm npua hlau feem ntau yog silicon, sulfur, manganese, phosphorus thiab lwm yam. Raw hlau yog tawv thiab nkig, tsis muaj toughness, yuav luag tsis muaj yas deformation muaj peev xwm, yog li nws tsis tuaj yeem ua tiav los ntawm forging, dov, kos duab thiab lwm yam. Txawm li cas los xij, qhov casting thiab txiav cov khoom ntawm npua hlau (grey hlau) nrog cov ntsiab lus silicon siab yog qhov zoo. Npua hlau yog cov khoom siv hluav taws xob tawg, raws li nws siv tau muab faib ua steelmaking npua hlau thiab casting npua hlau ob pawg. Nws yog kev cai hu ua steelmaking npua hlau npua hlau, casting npua hlau hu ua cam khwb cia hlau. Casting npua hlau los ntawm forging, metamorphism, nodulation thiab lwm txoj kev tuaj yeem hloov nws cov qauv sab hauv, txhim kho thiab txhim kho nws cov khoom siv, yog li ntawd, casting npua hlau tuaj yeem muab faib ua dawb cam khwb cia hlau, grey cam khwb cia hlau, malleable cam khwb cia hlau, cam khwb cia hlau thiab tshwj xeeb cam khwb cia hlau thiab lwm yam ntau yam.

Npua hlau kuj tseem tuaj yeem muab faib ua cov npua hlau zoo tib yam thiab cov hlau npua hlau, xws li steelmaking npua hlau thiab cam khwb cia npua hlau, tom kawg yog ferro manganese thiab ferrosilicon. Alloy npua hlau yog siv los ua cov khoom siv rau steelmaking, xws li deoxidizer thiab alloying element additive. Ordinary npua hlau tso nyiaj rau ntau dua 98% ntawm cov khoom siv hluav taws xob smelting, thiab cov hlau ua kom zoo rau ntau dua 80% ntawm Tuam Tshoj tus npua hlau zoo tib yam, nrog kev txhim kho ntawm qib kev lag luam, qhov kev faib ua feem yuav maj mam nce.

Hauv kev txiav txim siab dav dav, hlau kuj tau muab faib ua cov tshuaj ntshiab hlau (muaj yuav luag xoom C), muaj cov hlau ntshiab (muaj tsawg dua {{0}}}.0218% C), thiab daim txhuam cev hlau, hlau hlau thiab lwm yam. ntawm. Txawm li cas los xij, lawv tsis yog cov khoom siv hluav taws xob hluav taws xob smelting, thiab lawv cov kev siv sib txawv. Thaum cov ntsiab lus C hauv cov hlau yog nyob rau hauv thaj tsam ntawm 0.03%-1.2%, nws yog hlau, thiab cov hlau uas muaj C1.2%-2.5% tsis yog siv tau, thiab feem ntau nws yog tsis siv rau industrial ntau lawm.

Pig hlau khoom: npua hlau yog tawv, hnav-tiv taus, zoo castability, tab sis npua hlau yog nkig thiab tsis tuaj yeem forged.

Ntxiv rau cov hlau, npua hlau kuj muaj cov pa roj carbon, silicon, manganese, phosphorus thiab sulfur thiab lwm yam khoom.

3. Yam ntxwv:Cov pa roj carbon nyob rau hauv npua hlau yog feem ntau nyob rau hauv daim ntawv ntawm hlau carbide, thiab nws cov hlaws yog dawb, feem ntau hu ua dawb hlau. Hom npua hlau no yog tawv thiab nkig, thiab feem ntau yog siv los ua raw khoom rau steelmaking.

Cov pa roj carbon nyob rau hauv cam khwb cia npua hlau muaj nyob rau hauv daim ntawv ntawm flake graphite, thiab nws puas yog grey, feem ntau hu ua grey hlau. Vim lub graphite mos thiab lubricating nyhuv, cam khwb cia npua hlau muaj zoo txiav, hnav tsis kam thiab casting zog. Txawm li cas los xij, nws lub zog tensile tsis txaus, yog li nws tsis tuaj yeem forged thiab dov, thiab tsuas yog siv los tsim ntau yam castings, xws li casting ntau lub tshuab cuab tam txaj, hlau kav thiab lwm yam.

Cov pa roj carbon nyob rau hauv ductile hlau muaj nyob rau hauv daim ntawv ntawm spherical graphite, nws cov cuab yeej siv tau zoo dua li cov hlau grey thiab ze rau cov hlau, nws muaj qhov zoo tshaj plaws casting, txiav thiab hnav tsis kam, muaj qee qhov elasticity, dav siv hauv kev tsim khoom. crankshaft, iav, piston thiab lwm yam kev tshaj lij castings thiab ntau yam khoom siv tshuab.

Tsis tas li ntawd, muaj cov npua hlau uas muaj silicon, manganese, npib tsib xee lossis lwm yam khoom uas muaj cov nyiaj tshwj xeeb, hu ua alloy npua hlau, xws li ferrosilicon, ferromanganese, thiab lwm yam, feem ntau siv los ua cov khoom siv raw rau steelmaking, ntxiv qee cov hlau npua hlau hauv. steelmaking tuaj yeem txhim kho kev ua haujlwm ntawm steel.

Zhongwei Precision muaj cov kev pabcuam hauv qab no

Detection Systems

Copper Silica Sol Investment Casting

Peb yog cov chaw tsim khoom ntawm "FGS370-17 Ductile hlau castings", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!