Kuwunika kwa katundu ndi mankhwala a 20CrMnTi chitoliro chachitsulo chosasunthika chozizira

Chitsulo cha 20CrMnTi chimatchedwa zida zachitsulo, ndipo mbali zambiri zimagwiritsa ntchito 20CrMnTi.

20CrMnTiChitoliro chachitsulo chosasinthikaakhoza kugawidwa m'magulu atatu: ozizira-koka, otentha adagulung'undisa ndiozizira adagulung'undisa owala zitsulo chitoliro, ndi zofunika zosiyanasiyana ndi njira zosiyanasiyana.Komabe, mayunitsi ena amagwiritsa ntchito zitsulo zozungulira kupanga mbali popanda kuganizira za kusintha mapaipi achitsulo.Kusintha 20CrMnTi chitoliro chachitsulo chosasunthika chozizira ndi 20CrMbTi zitsulo zozungulira sikungopulumutsa zipangizo ndi maola ogwira ntchito, komanso kumachepetsa ndalama ndikuwonjezera mpikisano wamsika.20CrMnTi ndi 30CrMnSiA mapaipi achitsulo osasunthika ozizira omwe amakokedwa ndi zitsulo zopangidwa ndi carburized zogwira ntchito bwino, zolimba kwambiri, zolimba komanso zosavala zosagwira pamwamba komanso zolimba pambuyo pa kubisala ndi kuzimitsa, kulimba kwamphamvu kwapang'onopang'ono, kutsekemera kwapakatikati, komanso makina abwino pambuyo pokhazikika.20CrMnTichitoliro chachitsulo chosasunthika choziziranthawi zambiri ndi chitsulo chochepa cha carbon ndi carbon content 0.17% - 0.24%.Amagwiritsidwa ntchito kwambiri m'magalimoto kupanga zida zotumizira.Ndi chitsulo chapakatikati cholimba cha carburized carbon, sing'anga CrMnTi chitsulo, cholimba kwambiri.Pansi pa chikhalidwe kuonetsetsa kuuma, izo ali mkulu mphamvu ndi kulimba, makamaka mkulu otsika kutentha zimakhudza toughness.20CrMnTi pamwamba pa carburized ndi chitsulo chowumitsa.Kuthekera kwabwino, kapindika kakang'ono pakukonza kwapadera, komanso kukana kutopa.Cholinga: magiya, ma shafts, ma pistoni, ndi zina zambiri amagwiritsidwa ntchito pazinthu zapadera zamagalimoto ndi ndege.

20CrMnTi muyezo: GB/T 3077-1988

Makhalidwe ndi kuchuluka kwa kagwiritsidwe ntchito ka20CrMnTi chitoliro chachitsulo chosasunthika chozizira:

Amagwiritsidwa ntchito popanga magawo ofunikira okhala ndi gawo lochepera 30mm lomwe limanyamula liwiro lalikulu, sing'anga kapena katundu wolemetsa, kukhudzika ndi kukangana, monga magiya, mphete zamagiya, zida za shaft crossheads, etc.

Chitoliro chachitsulo cha 20CrMnTi chokoka mozizira (mfundo):

Mpweya C: 0.17 ~ 0.23

Silicon Si: 0.17 ~ 0.37

Manganese Mn: 0.80 ~ 1.10

Sulfure S: zovomerezeka zotsalira ≤ 0.035

Phosphorus P: zovomerezeka zotsalira ≤ 0.035

Chromium Cr: 1.00 ～ 1.3020CrMnTi chitoliro chachitsulo chosasunthika chozizira

Nickel Ni: zovomerezeka zotsalira ≤ 0.030

Copper Cu: zovomerezeka zotsalira ≤ 0.030

Titaniyamu Ti: 0.04-0.10

Zimango za 20CrMnTi chitoliro chachitsulo chosasunthika chozizira:

kulimba mphamvu σ b (MPa):≥1080(110)

zokolola mphamvu σ s (MPa):≥835(85)

kutalika δ 5 (％):≥10

Kuchepetsa kwa dera ψ (％):≥45

Mphamvu yamphamvu Akv (J): ≥ 55

Mphamvu yamphamvu α kv (J/cm2):≥69(7)

Kulimba: ≤ 217HB

Kukula kwachitsanzo: kukula kopanda kanthu ndi 15mm

Mafotokozedwe a chithandizo cha kutentha ndi kapangidwe kazitsulo ka 20CrMnTi chitoliro chozizira chosasunthika chosasunthika:

Kutentha mankhwala specifications: kuzimitsa: 880 ℃ kwa nthawi yoyamba, 870 ℃ kachiwiri, mafuta kuzirala;Kutentha 200 ℃, madzi kuzirala ndi mpweya kuzirala.

Chitoliro chachitsulo cha 20crmnti ndi chitsulo chowumitsa chitsulo, chomwe chimakhala ndi kuuma bwino chifukwa cha ma alloying angapo a Cr, Mn ndi Ti.M'mimba mwake wovuta wa kuzimitsa mafuta ndi pafupifupi 40mm;Pambuyo pa carburizing ndi kuzimitsa, imakhala ndi kukana kwamphamvu kwambiri komanso kulimba kwambiri, makamaka kutsika kwamphamvu kwa kutentha;Chitsulocho chimakhala ndi njira yabwino yopangira carburizing, kachitidwe kakang'ono kakukula kwambewu, kuzimitsa kwachindunji komanso kupindika pang'ono.20CrMnTi zitsulo zingagwiritsidwe ntchito kupanga mbali zolemetsa za carburized ndi gawo zosakwana 30 ℃, ndipo zimatha kupirira liwilo lalikulu, katundu wapakatikati kapena katundu wolemera, zimakhudzana ndi mikangano, monga magiya, zitsulo zamagetsi, mphete zamagetsi, mphete za mtanda, zowongola dzanja. , mphutsi, etc.

The mankhwala zikuchokera 20crmnti zitsulo chitoliro zikuphatikizapo carbon C, silicon Si, manganese Mn, sulfure S, phosphorous P ndi chromium Cr.20crmnti zitsulo kupanga chitoliro ndondomeko: mpweya zitsulo, kugubuduza mapeto, sanali makutidwe ndi okosijeni owala kutentha mankhwala (NBK boma), kuyezetsa nondestructive, chitsulo chitoliro khoma mkati brushed ndi zida zapadera ndi kutsukidwa pansi kuthamanga kwambiri, odana dzimbiri mafuta pa chitoliro zitsulo ndi Amathandizidwa kuti apewe dzimbiri, ndipo zophimba kumbali zonse ziwiri zimatetezedwa kuti ziteteze fumbi.20crmnti zitsulo chitoliro mbali: mkati ndi kunja makoma a chitoliro zitsulo ali ndi mwatsatanetsatane mkulu ndi mapeto mkulu, chitoliro zitsulo alibe wosanjikiza oxide pambuyo kutentha kutentha, khoma lamkati ndi ukhondo mkulu, chitsulo chitoliro amanyamula kuthamanga kwambiri, kupindika ozizira si. deform, ndipo kukulitsa ndi flattening alibe ming'alu.

Shandong Haihui Steel Co., Ltd ozizira adagulung'undisa mwatsatanetsatane owala zitsulo mipopewa GB 10 #, GB20 #, GB35 #, GB45 #, 20Cr, 40Cr, 16Mn, 35CrMo, 20CrMoTi, Gcr15.