China 27SiMn hydraulic steel chitoliro wopanga
27SiMn chitoliro chopanda chitsulo, ie 27 silicon manganese seamless chitsulo chitoliro, ndi chimodzi mwazinthu zachitsulo chopanda chitoliro, ndipo mpweya wa carbon uli pakati pa 0.24-0.32%. SIMN imatchulidwa padera chifukwa zomwe zili mu silicon manganese muzinthu zisanu (carbon C, silicon Si, manganese Mn, phosphorous P, sulfure s) ndi za 1.10-1.40%. 27SiMn chitoliro chopanda msoko ndi choyenera kupangira magetsi, chowotchera, mafakitale amafuta, zida zamagalimoto ndi sitima, ndi zina zambiri.
27SiMn, chitoliro cha hydraulic strut. Khodi ya digito yogwirizana: a10272
Standard: GB / t17396-2018
Chitsulo chamtunduwu chili ndi katundu wabwino kuposa 30Mn2 zitsulo, kuuma kwakukulu, kuuma kofunikira m'mimba mwake 8 ~ 22mm m'madzi, machinability wabwino, pulasitiki yoziziritsa kuzizira komanso kutsekemera; Kuphatikiza apo, kulimba kwachitsulo sikuchepa kwambiri panthawi ya chithandizo cha kutentha, koma kumakhala ndi mphamvu zambiri komanso kukana kuvala, makamaka pamene madzi akutha; Komabe, chitsulo ichi tcheru ku malo oyera, kupsa mtima brittleness ndi kutenthedwa tilinazo pa kutentha mankhwala.
Chitsulo chamtunduwu chimagwiritsidwa ntchito makamaka pakuzimitsidwa ndi kupsya mtima kupanga magawo otentha opondaponda omwe amafunikira kulimba kwambiri komanso kukana kuvala; Itha kugwiritsidwanso ntchito pansi pamagetsi okhazikika kapena otentha, monga pini ya trakitala, etc.
Kugwiritsa ntchito 27 SIMN chitoliro chopanda msoko ndi chitoliro chachitsulo wamba
27SiMn chitoliro chachitsulo chosasunthika
27SiMn chitoliro chachitsulo chosasunthika
1. Chitoliro chopanda chitsulo chamadzimadzi: GB / t8163-2018
2. Chitoliro chachitsulo chosasunthika cha boiler: GB / t3087-2018
3. Kuthamanga kwakukulu kwa chitoliro chosasunthika cha boiler: GB / t5310-2018 (ST45.8 - mtundu III)
4. Kuthamanga kwambiri kwachitsulo chosasinthika chitoliro cha zida za feteleza: GB / t6479-2018
5. Chitoliro chachitsulo chosasunthika pobowola geological: yb235-70
6. Chitoliro chachitsulo chosasunthika pobowola mafuta: yb528-65
7. Chitoliro chosasunthika chachitsulo chamafuta amafuta: GB / t9948-2018
8. Chitoliro chapadera chopanda msoko cha kolala yobowola mafuta: yb691-70
9. Chitoliro chosasunthika chachitsulo cha shaft yagalimoto: GB / t3088-2018
10. Chitoliro chachitsulo chosasunthika cha zombo: GB / t5312-2018
11. Chitoliro chozizira chokokedwa chozizira chokulungidwa bwino chopanda msoko: GB / t3639-2018
12. Chitoliro chopanda chitsulo cha hydraulic prop: GB / t17396-2018
Makina amakina a 27SiMn chitoliro chopanda chitsulo
Kulimba kwamphamvu σ b (MPa): ≥980
zokolola mphamvu σ s (MPa): ≥835
Kutalika δ 5/(%): ≥12
Kuchepetsa kwa dera ψ/(%): ≥40
Mphamvu zamayamwidwe (mtengo wokhuza) (aku2 / J): ≥ 39
Mipope yonse yachitsulo yopanda msoko iyenera kuyesedwa kuti ikhale ndi makina. Njira zoyesera zamakina zimagawidwa makamaka m'magulu awiri: kuyesa kwamphamvu komanso kuyesa kuuma.
Kuyesa kwamphamvu ndikupanga chitoliro chachitsulo chosasunthika kukhala chitsanzo, kukokera chitsanzocho kuti chiphwanyike pamakina oyesera olimba, kenako kuyeza chimodzi kapena zingapo zamakina. Nthawi zambiri, mphamvu zokhazikika zokha, mphamvu zokolola, kutalika pambuyo pakusweka ndi kuchepetsa dera zimayesedwa.
Mayeso a kuuma ndikukanikizira pang'onopang'ono cholembera cholimba mumtunda wachitsanzo molingana ndi momwe zafotokozedwera, ndiyeno kuyesa kuya kapena kukula kwake, kuti muwone kuuma kwa zinthuzo.
Good machinability, sing'anga ozizira mapindikidwe plasticity ndi weldability; Kuphatikiza apo, kulimba kwachitsulo sikuchepa kwambiri panthawi ya chithandizo cha kutentha, koma kumakhala ndi mphamvu zambiri komanso kukana kuvala, makamaka pamene madzi akutha; Komabe, chitsulo ichi tcheru ku malo oyera, kupsa mtima brittleness ndi kutenthedwa tilinazo pa kutentha mankhwala.
Kusamala pakuwunika kwakukulu kwa chitoliro chopanda zitsulo
Kusamala pakuwunika kwakukulu kwa chitoliro chopanda chitsulo chosasunthika kumaphatikizapo mfundo izi:
1. Kuya ndi kukula kwa decarburization pamwamba.
2. Utali ndi kuya kwa zopindika pamwamba, shrinkage patsekeke, pakati pakati pa carbon ndi sulfure.
3. Kugawidwa kwa ferrite ndi pearlite mu chitoliro chachitsulo chosasunthika.
4. Zowonongeka zina za microstructure, komanso kukula kwa tirigu, kuuma kwa chitoliro kosasunthika komanso kuphatikizidwa.
