Zitsulo zosamva kuvala:
(1) NM360 (360 yosavala)
Kutchula dzina: N ndi kukana (nai) M ndi chilembo choyamba cha pinyin cha zilembo ziwiri zaku China zopera (mo), ndipo 360 imayimira kuuma kwapakati kwa Brinell kwa mbale zachitsulo izi.
Chithandizo cha kutentha: kutentha kwakukulu, kuzimitsa + kutentha (kuzimitsa ndi kutentha)
Ntchito: NM360 kuvala zosagwira zitsulo pepala chimagwiritsidwa ntchito mu migodi makina, malasha migodi makina, chilengedwe
Amagwiritsidwanso ntchito ngati chitsulo champhamvu kwambiri chokhala ndi mphamvu zokolola ≥ 700MPa.Ndikofunikira kupereka chitetezo pazochitika kapena magawo omwe akufunika kuti asavale, kuti zidazo zikhale ndi moyo wautali, kuchepetsa nthawi yosamalira chifukwa chokonza, ndikuchepetsanso ndalama zogulira ndalama.
Magwiridwe: Zokolola zimaposa 800, ndipo mphamvu zamakokedwe zimaposa 1000.
(2) NM400
NM400 ndi mbale zachitsulo zolimba kwambiri zosavala.NM400 ili ndi mphamvu zamakina apamwamba kwambiri;mawonekedwe ake amakina ndi 3 mpaka 5 kuposa wamba otsika aloyi zitsulo mapepala;imatha kusintha kwambiri kukana kwamphamvu kwa magawo okhudzana ndi makina;motero kupititsa patsogolo moyo wautumiki wa makina ndi kuchepetsa ndalama zopangira.Kuuma kwa pamwamba kwa mankhwalawa nthawi zambiri kumafika 360 ~ 450HB.Zitsulo zomangika zogwiritsidwa ntchito pokonza ndi kupanga zida zosavala komanso zosatetezeka kumigodi ndi makina osiyanasiyana omanga.
NM400 kuvala zosagwira zitsulo pepala chimagwiritsidwa ntchito makina zomangamanga, makina migodi, makina migodi malasha, makina chitetezo chilengedwe, makina zitsulo ndi zina mankhwala.Excavator, loader, bulldozer chidebe mbale, m'mphepete mbale, side m'mphepete mbale, tsamba.Ma Crusher liners, masamba.
(3) Mn13 (standard high manganese chitsulo)
Mn13 ndi chitsulo chapamwamba cha manganese chosamva kuvala (HIGH MANGANESE STELL SCRAP), chomwe ndi chisankho chabwino kwambiri pakati pa zinthu zosavala monga kukhudzidwa kwamphamvu komanso kuvala kwazinthu zopanikizika kwambiri.
Pali mikhalidwe iwiri yayikulu kwambiri yachitsulo chachikulu cha manganese: imodzi ndikuti kukhudzika kwakukulu kwakunja, kumapangitsa kuti kusanjikiza kwake kukhale kokulirapo.Ikakhudzidwa, kulimba kwake kumawonjezeka kuchokera ku HB200 kupita pamwamba pa HB700, motero kumapanga kusanjika kosamva bwino.The austenite mu wosanjikiza wamkati wa zitsulo mbale akadali zabwino zotsatira kulimba;chachiwiri ndi chakuti ndi kuvala kwapang'onopang'ono kwa pamwamba pamtunda wouma, zigawo zatsopano zogwira ntchito zidzapitiriza kupanga.
Mn13 yogudubuza mbale yachitsulo imakhala yabwino kwambiri yolimbana ndi kuvala kwamphamvu komanso kupsinjika kwambiri, sichitha kugwiritsidwa ntchito, ndipo imakhala ndi zida zosavuta zopangira monga kudula, kuwotcherera, ndi kupindika.
Chitsulo chachitsulo cha chromium chomwe chimagwiritsidwa ntchito kale chimakhala ndi kukana kwabwino kwa kuvala kokha pakusuntha.Mn13 yogubuduza chitsulo mbale imatha kuchepetsa mtengo wogwiritsa ntchito kuvala zida, kupulumutsa mtengo wokonza zida, ndikuwongolera mpikisano wazinthu zomalizidwa.
Komabe, kukana kuvala kwachitsulo chapamwamba cha manganese kumawonetsa kukwera kwake pokhapokha pamikhalidwe yokwanira kupanga kuuma kwa ntchito, ndipo kumakhala kosauka nthawi zina.
Chitsulo chamtundu wa Mn17 chosamva kuvala chapamwamba cha manganese ndikuwonjezera kuchuluka kwa manganese pamaziko a chitsulo cha Mn13, chomwe chimapangitsa kukhazikika kwa austenite ndikuletsa mvula ya carbides, potero kumapangitsa mphamvu ndi pulasitiki yachitsulo ndikuwongolera ntchito. kuuma luso la chitsulo.ndi kukana abrasion.Mwachitsanzo, moyo wautumiki wa mafoloko a njanji ya ZGMn18 omwe amagwiritsidwa ntchito kumpoto ndi 20% ~ 25% apamwamba kuposa a ZGMn13.
Makalasi ndi kuchuluka kwa chitsulo chokwera cha manganese chomwe chimagwiritsidwa ntchito kwambiri ku China ndi: ZGMn13-1 (C 1.10% ~1.50%) imagwiritsidwa ntchito pazigawo zopanda mphamvu, ZGMn13-2 (C1.00% ~1.40%) imagwiritsidwa ntchito wamba, ZGMn13- 3 (C0.90% ~ 1.30%) amagwiritsidwa ntchito pazigawo zovuta, ndipo ZGMn13-4 (C0.90% ~ 1.20%) imagwiritsidwa ntchito pazigawo zazikulu.Manganese omwe ali pamwamba pazitsulo zinayi zapamwamba ndi 11.0% mpaka 14.0%.
Pa kuwotcherera ndi kukonzanso, ma electrodes a manganese-nickel a austenite (mtundu wa D256 kapena D266) ayenera kusankhidwa, okhala ndi mawonekedwe aatali komanso ochepa, φ3.2mm × 350mm, ndi zokutira zakunja ndi zamchere.Njira yogwirira ntchito imatengera kulumikizana kwa DC reverse, arc yaying'ono, arc yofooka, mikanda yaying'ono yowotcherera ndi zigawo zingapo zowotcherera, ndipo nthawi zonse imakhala ndi kutentha kochepa komanso kutentha pang'ono.Menyani pamene mukuwotcherera kuti muchepetse kupsinjika.Zowonongeka zofunikira ziyenera kuzindikirika.Kuwotcherera kung'anima (Swiss GAAS80/700 flash kuwotcherera makina) kapena MAG kuwotcherera (monga Nissan YD-S-500) angagwiritsidwe ntchito kuwotcherera zofunika kwambiri, amene angathe kuonetsetsa bwino kuwotcherera msoko makina katundu.
Zowonjezera 1: Lingaliro la kuuma
Kuuma ndi ndondomeko ya ntchito yoyeza kufewa ndi kuuma kwa zipangizo.Pali njira zambiri zoyezetsa kuuma, mfundo siziri zofanana, ndipo miyeso yoyezera kuuma ndi matanthauzo ake sizofanana ndendende.Chodziwika kwambiri ndi static load indentation method hardness test, yomwe ndi Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC), Vickers hardness (HV), mphira wapulasitiki kuuma kwa Shore (HA, HD) ndi kuuma kwina Mtengo wake umasonyeza kuthekera kwa pamwamba pa zinthu kukana kulowerera kwa chinthu cholimba.Kuuma si kuchuluka kwa thupi, koma ndizomwe zimawonetsa kulimba, pulasitiki, mphamvu ndi kulimba kwa zida.
Kuuma kwachitsulo: Dzina lachidziwitso la kuuma kwachitsulo ndi H. Malinga ndi njira zosiyanasiyana zoyesera kuuma, pali makamaka mawu otsatirawa.
●Mawu odziwika bwino akuphatikizapo Brinell (HB), Rockwell (HRC), Vickers (HV), Leeb (HL) kulimba, ndi zina zotero, zomwe HB ndi HRC zimagwiritsidwa ntchito kwambiri.
● HB ili ndi ntchito zambiri, ndipo imagwiritsidwa ntchito nthawi zambiri pamene zinthuzo zili zofewa, monga zitsulo zopanda chitsulo, zitsulo zisanayambe kutentha kapena pambuyo pozizira.HRC ndiyoyenera pazinthu zolimba kwambiri, monga kuuma kwa chithandizo cha kutentha, etc.
Kusiyanitsa pakati pa awiriwa ndikuti ma probes of hardness testers ndi osiyana.Ma probe a Brinell hardness tester ndi mipira yachitsulo, pomwe ma probe a Rockwell hardness tester ndi diamondi.Pazifukwa zina, HB ndi HRC zitha kusinthidwa poyang'ana patebulo.Njira yake yowerengera m'maganizo imatha kulembedwa motere: 1HRC≈1/10HB.
●HV-yoyenera kusanthula ma microscopic.Vickers hardness (HV) amapanikizidwa pamwamba pa zinthuzo ndi katundu wosakwana 120kg ndi diamondi lalikulu cone indenter ndi vertex ngodya ya 136 °, ndi pamwamba pa dzenje indentation zinthu amagawidwa ndi katundu. mtengo, womwe ndi Vickers hardness value (HV).Kulimba kwa Rockwell (HR-) kumatsimikiziridwa ndi kuya kwa indentation pulasitiki deformation kudziwa kuuma mtengo index.Ndiosavuta kugwiritsa ntchito, mwachangu komanso mwachilengedwe, ndipo ndi yoyenera kupanga zambiri.
Chomangira 2: Chitsulo chomwe chimagwiritsidwa ntchito nthawi zambiri
Domestic (Wugang, Xingang, Wuhan Iron and Steel, Nangang, Baosteel): NM360, NM400, NM450, NM500, NR360, NR400, B-HARD360, B-HARD400, B-HARD450
Chitsulo chosavala cha Sweden: HARDOX400, HARDOX450, HARDOX500, HARDOX600, SB-50, SB-45
Chitsulo cha Germany chosamva kuvala: XAR400, XAR450, XAR500, XAR600, Dillidur400, Dillidur500
Chitsulo cha Belgian kuvala chosagwira: QUARD400, QUARD450, QUARD500
Chitsulo chosavala cha ku France: FORA400, FORA500, Creusabro4800, Creusabro8000
Chitsulo chosamva ku Finnish: RAEX400, RAEX450, RAEX500
Chitsulo cha Japan kuvala chosagwira: JFE-EH360, JFE-EH400, JFE-EH500, WEL-HARD400, WEL-HARD500.
Nthawi yotumiza: Jan-29-2023