Ntawm ntau yam ntawm casting alloys, hnav-resistant cam khwb cia hlau yog ib tug heev lug siv hlau alloy. Hnav-resistant cam khwb cia hlau tsuas yog txhim kho cov hnav tsis kam ntawmhlau castingslos ntawm kev ntxiv cov ntsiab lus sib txawv ntawm cov ntsiab lus alloying, xws li manganese, chromium, carbon, thiab lwm yam, rau cov hlau. Nyob rau tib lub sijhawm, kev hnav tsis kam ntawm hnav-resistant steel castings kuj yog nyob ntawm txoj kev kho cua sov siv los ntawm covchaw tsim khoomthiab cov qauv ntawm cov casting.
Raws li cov yam ntxwv sib txawv, kev hnav ntawm cov hlau castings tuaj yeem muab faib ua abrasive hnav, nplaum hnav, qaug zog hnav, hnav corrosion thiab fretting hnav. Wear-resistant steel castings yog siv nyob rau hauvkev lag luamnrog rau kev ua haujlwm nyuaj thiab kev ua haujlwm siab ntawm cov tshuab ua haujlwm, xws li mining, metallurgy,kev tsim khoLub zog, petrochemical, kev txuag dej,kev ua liaj ua tebthiab kev lag luam tsheb thauj mus los. Wear-resistant steel castings feem ntau yog siv rau hauv kev puas tsuaj nrog qee yam kev cuam tshuam, xws li cov khoom sib tsoo, excavators, crushers, tsheb laij teb, thiab lwm yam.
Hauv kev lag luam foundry, feem ntau siv hom hnav-resistant cam khwb cia hlau xws li hnav-resistant manganese steel, hnav-resistant chromium steel, hnav-resistant low-alloy cam khwb cia hlau thiab hnav-resistant carbon steel. Ntawm RMC Foundry, hnav-resistant cam khwb cia hlau yuav raug cam khwb cia los ntawm ob peb txheej txheem casting suav nrogntsuab xuab zeb casting, resin coated xuab zeb casting, tsis muaj ci pwm casting, peev casting, poob ua npuas ncauj casting thiabnqus casting.
1) Hnav-Resistant Manganese Steel
Raws li cov ntsiab lus ntawm manganese sib txawv, qhov hnav-tiv taus manganese hlau rau casting yog tsuas yog muab faib ua tsawg-manganese hnav-resistant cam khwb cia hlau, nruab nrab manganese hnav-resistant cam khwb cia hlau thiab siab manganese hnav-resistant cam khwb cia hlau. Wear-resistant manganese steel muaj siab toughness thiab tsis yooj yim rau tawg thaum siv. Nyob rau tib lub sijhawm, nws muaj cov khoom ua haujlwm zoo heev, yog li hnav-resistant manganese steel yog tsim rau abrasive hnav.
Feem ntau siv qib ntawm manganese steel rau kev hnav-tiv taus yog: M13 (Hadfield Steel), Mn5, Mn6, Mn7, Mn8, Mn17 ZG120Mn7Mo1, ZG120Mn13, ZG120Mn13Cr2, J9119, J91139, J919, thiab lwm yam.
2) Hnav-resistant Chrome Steel
Cov hnav-resistant chromium steel rau casting kho qhov hardness thiab hnav tsis kam ntawm cov cam khwb cia hlau los ntawm kev ntxiv cov nyiaj tsim nyog ntawm chromium rau cov hlau alloy. Ua kom cov ntsiab lus ntawm chromium hauv nruab nrab carbon steel tuaj yeem txhim kho hardenability ntawm cam khwb cia hlau thiab kuj txhim kho lub toughness ntawm cam khwb cia hlau. Ntxiv me me ntawm molybdenum tuaj yeem txhim kho qhov hardenability ntawm cam khwb cia hlau. Txoj kev kho cua sov ntawm hnav-resistant chromium hlau feem ntau yog kub quenching + kub tempering. Nws yuav tsum tau muab sau tseg tias raws li cov pa roj carbon ntsiab lus ntawm hnav-resistant chromium hlau nce txhua lub sij hawm, lub hardness ntawm steel castings yuav nce, tab sis nws toughness yuav txo.
Feem ntau siv cov qib hnav-resistant chromium hlau rau casting yog: ZG30CrMo, ZG35CrMo, ZG40Cr, ZG40CrMo, ZG42CrMo, ZG50CrMo, thiab lwm yam.
3) Hnav-Resistant Low-alloy Cast Steel
Cov hlau tsis tshua muaj hlau yog hais txog cov hlau alloy nrog cov ntsiab lus alloying tsawg dua 5%. Txij li thaum lub hardness thiab toughness ntawm tsawg-alloy cam khwb cia hlau yuav raug kho nyob rau hauv ib tug kuj loj ntau yam, hnav-resistant low-alloy cam khwb cia hlau yog siv ntau thiab ntau dav. Thaum xaiv cov hlau casting thiab kev kho cua sov, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog lub zog, cuam tshuam lub zog thiab hnav tsis kam ntawm cov hlau tsis tshua muaj alloy hnav-resistant cam khwb cia hlau kom ua tiav cov txiaj ntsig zoo tshaj plaws. Feem ntau alloying ntsiab nyob rau hauv qis-alloy hnav-resistant cam khwb cia hlau muaj xws li molybdenum, chromium, manganese, npib tsib xee, thiab silicon.
Feem ntau siv cov qib hnav-resistant low-alloy steel rau casting yog: ZG30Mn2Si, ZG30Mn2SiCr, ZG30CrMnSiMo, ZG30CrNiMo, ZG40CrNiMo, thiab lwm yam.
4) Hnav-Resistant Carbon Steel
Kev hnav tsis kam ntawm carbon steel yog tsuas yog tau los ntawm qhov chaw hardening ntawm steel castings. Thaum cov ntsiab lus carbon ntau dua 0.35%, qhov chaw induction hardening feem ntau yog siv rau saum npoo ntawm cov hlau casting. Thaum cov ntsiab lus carbon tsawg dua 0.35%, cov pa roj carbon steel castings tuaj yeem raug carburized, nitrided lossis carbonitrided los txhim kho nws cov hnav tsis kam.
Post lub sij hawm: Feb-02-2021