Wear-resistant steel phaj:
(1) NM360 ( hnav-resistant 360)
Lub npe: N yog qhov tsis kam (nai) M yog thawj tsab ntawv pinyin ntawm ob lub cim Suav rau kev sib tsoo (mo), thiab 360 sawv cev rau qhov nruab nrab Brinell hardness ntawm daim hlau no.
Kev kho cua sov: kub tempering, quenching + tempering (quenching thiab tempering)
Daim ntawv thov: NM360 hnav-resistant steel ntawv yog dav siv nyob rau hauv mining machinery, thee mining machinery, ib puag ncig
Nws kuj tseem siv tau los ua lub zog muaj zog steel nrog cov khoom muaj zog ≥ 700MPa.Nws yog qhov tseem ceeb los muab kev tiv thaiv rau lub sijhawm lossis qhov chaw uas yuav tsum tau hnav-tiv taus, txhawm rau ua kom cov cuab yeej siv tau lub neej ntev, txo kev txij nkawm los ntawm kev saib xyuas, thiab sib raug zoo txo peev peev.
Kev ua tau zoo: Cov txiaj ntsig yog tshaj 800, thiab lub zog tensile yog tshaj 1000.
(2) NM400
NM400 yog lub zog siab hnav-resistant steel daim hlau.NM400 muaj zog heev txhua yam;nws cov khoom siv kho tshuab yog 3 mus rau 5 npaug ntawm cov nplooj ntawv qis-alloy steel;nws tuaj yeem txhim kho qhov hnav tsis kam ntawm cov khoom siv kho tshuab;yog li txhim kho kev pabcuam lub neej ntawm cov tshuab thiab txo cov nqi tsim khoom.Lub hardness saum npoo ntawm cov khoom no feem ntau ncav cuag 360 ~ 450HB.Muaj feem xyuam rau cov qauv steel daim hlau rau kev ua thiab tsim cov khoom hnav-tiv taus thiab qhov tsis zoo rau cov mines thiab ntau yam kev tsim kho tshuab.
NM400 hnav-resistant steel ntawv yog dav siv nyob rau hauv kev tsim kho machinery, mining machinery, thee mining machinery, environmental protection machinery, metallurgical machinery thiab lwm yam khoom.Excavator, loader, bulldozer thoob phaj, ntug phaj, sab ntug phaj, hniav.Crusher liners, hniav.
(3) Mn13 (tus qauv siab manganese hlau)
Mn13 yog siab manganese hnav-resistant steel (HIGH MANGANESE STELL SCRAP), uas yog qhov kev xaiv zoo tshaj plaws ntawm cov ntaub ntawv hnav-resistant xws li muaj zog cuam tshuam thiab cov khoom siv siab hnav.
Muaj ob yam tseem ceeb tshaj plaws ntawm cov hlau manganese siab: ib qho yog qhov ntau dua qhov cuam tshuam sab nraud, siab dua hnav tsis kam ntawm nws tus kheej txheej txheej.Thaum nws muaj kev cuam tshuam, nws qhov tawv tawv yuav nce sai ntawm HB200 mus rau saum HB700, yog li tsim cov txheej txheej hnav-tiv taus heev.Lub austenite nyob rau hauv lub puab txheej ntawm cov hlau phaj tseem tuav zoo cuam tshuam toughness;Qhov thib ob yog tias nrog maj mam hnav ntawm cov txheej txheej tawv tawv, cov txheej txheem ua haujlwm tshiab yuav txuas ntxiv mus.
Mn13 dov steel phaj muaj kev hnav zoo heev rau kev hnav muaj zog thiab kev ntxhov siab hnyav, yuav tsis tawg thaum siv, thiab muaj cov cuab yeej siv tau yooj yim xws li txiav, vuam, thiab khoov.
Kev lig kev cai siv high chromium cam khwb cia hlau tau zoo hnav tsis kam tsuas yog rau kev txav mus los.Mn13 dov steel phaj tuaj yeem txo cov nqi siv ntawm cov khoom siv, txuag cov nqi kho khoom, thiab txhim kho kev sib tw ntawm cov khoom tiav.
Txawm li cas los xij, kev hnav tsis kam ntawm cov hlau manganese siab qhia tau hais tias nws qhov kev ua tau zoo tsuas yog nyob rau hauv cov xwm txheej txaus los tsim kev ua haujlwm nyuaj, thiab nws tsis zoo rau lwm qhov xwm txheej.
Qhov raug Mn17 hnav-tiv taus siab-manganese hlau yog txhawm rau nce tus nqi ntawm manganese raws li Mn13 steel, uas txhim kho kev ruaj ntseg ntawm austenite thiab tiv thaiv nag lossis daus ntawm carbides, yog li txhim kho lub zog thiab plasticity ntawm cov hlau thiab txhim kho kev ua haujlwm. hardening peev xwm ntawm cov hlau.thiab abrasion tsis kam.Piv txwv li, lub neej kev pab cuam ntawm ZGMn18 railway diav rawg siv nyob rau sab qaum teb yog 20% ~ 25% siab dua li ntawm ZGMn13.
Cov qib thiab cov peev txheej ntawm kev siv cov hlau manganese siab feem ntau siv hauv Suav teb yog: ZGMn13-1 (C 1.10% ~ 1.50%) yog siv rau qhov cuam tshuam tsawg, ZGMn13-2 (C1.00% ~ 1.40%) yog siv rau Qhov zoo tib yam, ZGMn13-3 (C0.90% ~ 1.30%) yog siv rau qhov nyuaj, thiab ZGMn13-4 (C0.90% ~ 1.20%) yog siv rau qhov cuam tshuam loj.Cov ntsiab lus manganese ntawm plaub qib ntawm cov hlau saum toj no yog 11.0% txog 14.0%.
Rau vuam thiab kho, austenite-raws li manganese-nickel electrodes (hom D256 los yog D266) yuav tsum tau xaiv, nrog ib tug ntev thiab nyias specification, φ3.2mm × 350mm, thiab txheej txheej yog alkaline.Txoj kev ua haujlwm tau txais DC rov qab kev sib txuas, me me tam sim no, tsis muaj zog arc, me me vuam hlaws thiab ntau qhov vuam txheej, thiab ib txwm tswj qhov kub thiab txias.Yeej thaum vuam kom tshem tawm kev ntxhov siab.Qhov tseem ceeb castings yuav tsum tau kuaj xyuas qhov tsis zoo.Flash vuam (Swiss GAAS80/700 flash welding tshuab) los yog MAG vuam (xws li Nissan YD-S-500) tuaj yeem siv rau kev vuam tseem ceeb dua, uas tuaj yeem ua kom cov vuam seam mechanical zog.
Daim ntawv ntxiv 1: Lub tswvyim ntawm hardness
Hardness yog qhov ntsuas kev ua tau zoo los ntsuas qhov softness thiab hardness ntawm cov khoom.Muaj ntau txoj hauv kev ntawm kev sim hardness, cov ntsiab lus tsis zoo ib yam, thiab qhov ntsuas hardness qhov tseem ceeb thiab lub ntsiab lus tsis zoo ib yam.Feem ntau yog cov khoom siv hluav taws xob zoo li qub kev ntsuas qhov nyuaj, xws li Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC), Vickers hardness (HV), roj hmab yas Shore hardness (HA, HD) thiab lwm yam hardness Nws tus nqi qhia tau hais tias. muaj peev xwm ntawm qhov chaw ntawm cov khoom siv los tiv thaiv kev nkag mus ntawm ib qho khoom nyuaj.Hardness tsis yog ib qho yooj yim lub cev kom muaj nuj nqis, tab sis ib qho kev qhia ua tau zoo qhia txog elasticity, plasticity, lub zog thiab toughness ntawm cov ntaub ntawv.
Hardness ntawm steel: Lub code lub npe ntawm hlau hardness yog H. Raws li txawv hardness xeem txoj kev, feem ntau yog cov nram qab no kab lus.
● Cov lus qhia muaj xws li Brinell (HB), Rockwell (HRC), Vickers (HV), Leeb (HL) hardness, thiab lwm yam, ntawm cov HB thiab HRC feem ntau siv.
●HB muaj ntau yam kev siv, thiab feem ntau yog siv thaum cov khoom muag muag, xws li cov hlau tsis muaj hlau, hlau ua ntej kev kho cua sov lossis tom qab annealing.HRC yog tsim rau cov ntaub ntawv uas muaj siab hardness, xws li kev kho cua sov hardness, thiab lwm yam.
Qhov txawv ntawm ob yog qhov kev sojntsuam ntawm hardness testers txawv.Cov kev sojntsuam ntawm Brinell hardness tester yog cov pob steel, thaum lub sijhawm sojntsuam ntawm Rockwell hardness tester yog pob zeb diamond.Hauv qee qhov xwm txheej, HB thiab HRC tuaj yeem hloov pauv los ntawm kev saib lub rooj.Nws cov qauv kev puas siab puas ntsws tuaj yeem sau tau zoo li: 1HRC≈1/10HB.
●HV-tsim nyog rau kev tsom xam microscopic.Vickers hardness (HV) yog nias rau saum npoo ntawm cov khoom uas muaj load tsawg dua 120kg thiab lub pob zeb diamond square cone indenter nrog lub kaum sab xis ntawm 136 °, thiab thaj tsam ntawm qhov chaw indentation ntawm cov khoom yog muab faib los ntawm cov load. tus nqi, uas yog Vickers hardness tus nqi (HV).Rockwell hardness (HR-) yog txiav txim los ntawm qhov tob ntawm indentation yas deformation los txiav txim qhov hardness tus nqi Performance index.Nws yog ib qho yooj yim rau kev khiav lag luam, ceev thiab intuitive, thiab yog haum rau loj ntau lawm.
Daim ntawv txuas 2: Feem ntau siv cov hlau tsis muaj zog
Hauv tsev (Wugang, Xingang, Wuhan Hlau thiab Hlau, Nangang, Baosteel): NM360, NM400, NM450, NM500, NR360, NR400, B-HARD360, B-HARD400, B-HARD450
Swedish hnav-resistant steel: HARDOX400, HARDOX450, HARDOX500, HARDOX600, SB-50, SB-45
German hnav-resistant steel: XAR400, XAR450, XAR500, XAR600, Dillidur400, Dillidur500
Belgian hnav-resistant steel: QUARD400, QUARD450, QUARD500
Fabkis hnav-resistant steel: FORA400, FORA500, Creusabro4800, Creusabro8000
Finnish hnav-resistant steel: RAEX400, RAEX450, RAEX500
Japanese hnav-resistant steel: JFE-EH360, JFE-EH400, JFE-EH500, WEL-HARD400, WEL-HARD500.
Post lub sij hawm: Jan-29-2023