Peev Castings ntawm Precipitation Hardening Stainless Hlau

Lub hom phiaj tseem ceeb ntawm cov khoom siv kho mob ntawm stainless hlau castings yog kom yaj carbides los yog lwm yam precipitated theem nyob rau hauv cov kev daws teeb meem kom tau ib tug supersaturated ib-theem qauv. Castings ntawm austenitic stainless hlau, austenitic manganese steel thiab nag lossis daus hardening stainless hlau feem ntau yuav tsum tau kho cov tshuaj kho.

Martensitic nag lossis daus hardening stainless hlau feem ntau muaj cov pa roj carbon tsawg dua 0.1%. Ua kom muaj zog los ntawm kev ntxiv cov khoom tawv tawv (tooj liab, txhuas, titanium thiab txhuas, thiab lwm yam) los ua kom tsis muaj zog. Cov ntsiab lus chromium feem ntau siab dua 17%, thiab qhov tsim nyog ntawm nickel ntxiv los txhim kho corrosion kuj.

Maraging nag lossis daus hardening stainless hlau yog ib hom hlau alloy nrog cov ntsiab lus tsis siab tshaj 0.03% los xyuas kom meej lub toughness, corrosion kuj, weldability thiab workability ntawm lub martensite matrix, thiab 12% chromium los xyuas kom meej corrosion kuj. Tsis tas li ntawd, cov ntsiab lus alloy cobalt tau ntxiv los txhim kho cov kev kho cua sov ntawm cov hlau.

Semi-austenitic nag lossis daus hardening stainless hlau, uas yog, hloov mus los nag lossis daus hardening stainless hlau, uas tsis muaj tsawg tshaj li 12% chromium. Nws muaj cov ntsiab lus carbon tsawg, thiab txhuas ua nws lub ntsiab nag lossis daus hardening. Hom nag lossis daus hardening stainless hlau no muaj kev ua tau zoo tag nrho tshaj li martensitic nag lossis daus hardening stainless hlau.

Austenitic nag lossis daus hardening stainless hlau yog stainless hlau nrog ruaj khov austenite qauv nyob rau hauv ob qho tib si quenched thiab laus lub xeev. Nws cov ntsiab lus npib tsib xee thiab manganese cov ntsiab lus siab, thiab cov ntsiab lus chromium siab dua 13% kom ntseeg tau zoo corrosion kuj thiab oxidation kuj. Nyob rau tib lub sijhawm, austenitic nag lossis daus hardening stainless hlau feem ntau ntxiv titanium, aluminium, vanadium lossis phosphorus raws li nag lossis daus hardening ntsiab lus, thiab ntxiv me me ntawm boron, vanadium, nitrogen thiab lwm yam khoom kom tau txais cov khoom zoo heev.

RMC Foundry Cam khwb cia cov qib nram qab no ntawm Precipitation Hardening Stainless Steel

• 1- Suav cov qauv: 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb
• 2- British Standard: ANC20, ANC21, ANC22
• 3- Asmeskas cov qauv: 630, 634, 17-4PH, 15-5PH, CB7Cu-1
• 4- Japanese qauv: SCS24, SCS32
• 5- German Standard: 1.4542