Ⅰ-Ndi chiyaniCr12MoV Cold Working Die Steel
Chitsulo cha Cr12MoV chozizira chogwira ntchito chozizira chopangidwa ndi Jinbaicheng ndi cha gulu lachitsulo chosamva kuvala kwambiri, chomwe chimadziwika ndi kukana kwambiri, kuuma, kusinthika kwapang'ono, kukhazikika kwamafuta ambiri, mphamvu yopindika kwambiri, ndi zina.Ndi yachiwiri kwa chitsulo chothamanga kwambiri ndipo ndi chinthu chofunikira popondaponda, mitu yozizira, ndi zida zina.Cr12MoV die steel ndi chitsulo cha carbon molybdenum ledeburite chokhala ndi mpweya wocheperako kuposa Crl2 chitsulo.Molybdenum ndi vanadium amawonjezedwa kuti apititse patsogolo ntchito yotentha, kulimba komanso kugawa kwa carbide kwachitsulo.Cr12MoV die steel ili ndi mpweya wocheperako kuposa Cr12 die steel.Kuphatikizika kwa zinthu zatsopano za alloy kumawongolera zochitika za carbide yosagwirizana.Kuphatikiza apo, molybdenum ndi molybdenum amatha kuchepetsa tsankho la carbide ndikuwongolera kuuma.Vanadium ndi vanadium zimatha kuyeretsa mbewu ndikuwonjezera kulimba, Chifukwa chake, chitsulo cha Jin Baicheng cha Cr12MoV chimakhala cholimba kwambiri, chokhala ndi gawo locheperapo pansi pa 400mm lomwe limatha kuzimitsidwa, ndipo limatha kukhalabe olimba komanso kuvala kukana pa 300-400.℃. Besides, Jinbaicheng's Cr12MoV mold chitsulo imakhala yolimba kwambiri kuposa zida zina zamtundu womwewo pamsika wamba, ndipo kuthekera kwa kusintha kwa voliyumu pakuzimitsa kumachepetsedwa kwambiri.Choncho, kukana kwake kuvala kwapamwamba komanso makina abwino opangira makina kumapangitsa Jinbaicheng's Cr12MoV zitsulo kukhala zoyenera kupanga nkhungu zosiyanasiyana zokhala ndi gawo lalikulu, mawonekedwe ovuta, komanso kupirira zovuta zazikulu, komanso zida zosiyanasiyana zopondaponda pansi pazifukwa zolemetsa, monga kukhomerera kufa, kudula kufa, kugubuduza kufa, etc. Chojambula chakuya chachitsulo, macheka ozungulira, zida zoyezera ndi zida zoyezera, kufa kwa ulusi, etc.
Ⅱ-Malangizo Ogwiritsa Ntchito of Cr12MoV Cold Working Die Steel
①Cr12MoV itha kugwiritsidwa ntchito kupanga mawonekedwe ovuta a convex, concave, ndikuyika midadada yokhomerera nkhungu ndi makulidwe azinthu> 3mm.Ndikoyenera kukhala ndi kulimba kwa 58 ~ 62HRC popanga ma convex ndi 60 ~ 64HRC popanga ma concave.
②Kuti apange nkhonya ndi ming'oma ya concave yomwe imafuna kukana kwambiri kuvala, tikulimbikitsidwa kukhala ndi kuuma kwa 60 ~ 62HRC popanga nkhonya ndi 62 ~ 64HRC popanga nkhungu ya concave.
③Kuti apange mawonekedwe a concave osamva kuvala muzojambula zakuya, tikulimbikitsidwa kukhala ndi kuuma kwa 62 ~ 64HRC.
④Amagwiritsidwa ntchito popanga zisankho zopindika, zopindika, ndikuyika midadada yomwe imafunikira kukana kuvala kwambiri komanso mawonekedwe ovuta popindika.Ndikofunikira kukhala ndi kuuma kwa 60-64HRC popanga ma convex, ndi 60-64HRC popanga ma concave.
⑤Pakupanga kuzizira kwa extrusion kumafa ndikufera mbali za aluminiyamu, tikulimbikitsidwa kukhala ndi kuuma kwa 60-62HRC popanga kufa, ndi 62-64HRC popanga kufa.
⑥Ndibwino kuti mugwiritse ntchito kuuma kwa 62 ~ 64HRC pazitsulo za convex ndi concave zomwe zimagwiritsidwa ntchito popanga nkhungu zozizira zamkuwa.
⑦Mitundu ya convex ndi concave yomwe imagwiritsidwa ntchito popanga zitsulo zoziziritsa kuzizira zimalimbikitsidwa kuti zikhale zolimba za 62 ~ 64HRC.
⑧Zitsulo zachitsulo zam'madzi zokhala ndi gawo lalikulu la 0.65% ~ 0.80% zomwe zimagwiritsidwa ntchito popanga kaboni zimakhala ndi kuuma kwa 37 ~ 42HRC, zomwe zimapereka moyo wautali mpaka 150000.
⑨Mabala achitsulo a masika okhala ndi gawo lalikulu la 0.65% mpaka 0.80% omwe amagwiritsidwa ntchito popanga kaboni amakhala ndi kuuma kwa 37-42HRC, ndipo ndi chithandizo chowonjezera cha nitriding, moyo wawo wautumiki ukhoza kufika nthawi 400000.
Ⅲ-Kukonza of Cr12MoV Cold Working Die Steel:
Tsatanetsatane wa kufewetsa nkhungu yoziziritsa kuzizira: Tetezani ndikuwotcha nkhungu ndi zitsulo zachitsulo pa kutentha kwa 760-780℃kwa maola 10, ndi kuzizira kwa ng'anjo ndi kuuma kwa 196HBW.Cold extrusion kupanga chingapezeke bwino.
Kufotokozera kwa wamba kwa isothermal spheroidizing annealing: 850-870℃ ×Maola 3-4, utakhazikika mu ng'anjo mpaka 740-760℃ ×Maola 4-5 a chithandizo cha isothermal, ndi kuuma kwa kuziziritsa kwa mpweya≤241HBW, kalasi ya eutectic carbide≤3, mulingo woyenera kwambiri kutentha kwa isothermal 740-76o℃, ndi nthawi≥4-5 maola.
Kufotokozera kwa spheroidizing annealing: (860± 10)℃ ×Maola 2-4, kutentha kwa ng'anjo pamlingo wozizira wa 30℃/ ola, (740± 10)° C x 4-6 maola, pang'onopang'ono kuzirala kwa 500-600℃ndi ng'anjo, kuziziritsa kwa mpweya mutatha kutulutsa, kuuma 207-255HBW.
General kuzimitsa ndi kutentha specifications: quenching kutentha 1000-1050℃, kuzimitsa mafuta kapena kuzimitsa, kuuma 260HRC, kutentha kutentha 160-180, nthawi yotentha 2 hours, kapena kutentha kwa 325-375° C, kutentha 2-3 nthawi.
Kuzimitsa kotsika komanso kutentha kozimitsa kotsika: 950℃-1040℃, kutentha kwa kutentha ndi pafupifupi 200℃, kutentha kwachiwiri.
Kuzimitsa kwakukulu ndi kutentha kwakukulu kozimitsa: 1050-1100℃, kutentha kwa kutentha ndi pafupifupi 520℃, kutentha kwachiwiri.Njira yachiwiri yowumitsa yomwe imagwiritsidwa ntchito pozimitsa kwambiri ndikubwezeretsanso kwambiri imapangitsa kuuma, koma mbewu zimakula.
Chithandizo cha Cryogenic: Chitsulo cha Cr12MoV chimalandira chithandizo cha cryogenic, chomwe chimatha kutulutsa ma ultrafine carbides omwazika kwambiri kuchokera ku quenched martensite, kenako ma ultrafine carbides amatha kusinthidwa kukhala ma carbides pambuyo pa 200.℃kutentha kwapansi.Martensite popanda chithandizo cha cryogenic amangowonjezera pang'ono carbide m'madera ena am'deralo pambuyo pa kutentha kochepa kwa moto wozungulira.
Jinbaicheng amatengera njira yochepetsera kutentha kwamankhwala, yomwe imasunga kuuma kwambiri komanso kukana kwachitsulo cha Cr12MoV.Zigawo zitatu zomwe zimagwiritsidwa ntchito nthawi zambiri ndi ion nitriding, gasi nitrocarburizing, ndi bath bath sulfure cyanide co nitriding, zimakhudzidwa kwambiri ndi kukana komanso kumamatira, zosambira zamchere za sulfure cyanide co nitriding kukhala zabwino kwambiri.
Moyo wautumiki wazojambula umafera Jinbaicheng's Ziwiya zachitsulo zosapanga dzimbiri za Cr12MoV, pambuyo pa chithandizo cha mpweya wa nitrocarburization, zimafika pa zidutswa za 30000, zomwe zimatalika nthawi 10 kuposa zomwe zimaumba zofananira zomwe zimathiridwa ndi kuzimitsidwa ndi kutenthetsa wamba.
Ⅳ-Wothandizira zitsulo zachitsulo - Jinbaicheng Metal
Mndandanda wa Ntchito yathu Yozizirakufa Zitsulo ndi ntchito yotentha kufa chitsulo zopezeka kuti zitha kuyitanidwa, zambiri zomwe tili nazo zili zokonzeka kutumizidwa posachedwag.Jinbaicheng ili ndi imodzi mwa malo osungiramo zinthu zazikulu kwambirintchito ozizira kufa chuma muChina, akhoza kupereka mipiringidzo yocheka kutalika kapena mbale zokonzedweratu ndi midadada mu nthawi yochepa kwambiri. Webusaiti yovomerezeka:www.sdjbcmetal.com Imelo: jinbaichengmetal@gmail.com kapena pa WhatsApphttps://wa.me/18854809715
Nthawi yotumiza: Jul-19-2023