①Kupanga. Chitsulo cha GCr15 chimakhala ndi magwiridwe antchito abwinoko komanso kutentha kwamitundu yosiyanasiyanatungsten chitsulo nkhungundi lalikulu. The forging ndondomeko malamulo ambiri: Kutentha 1050 ~ 1100 ℃, koyamba forging kutentha 1020 ~ 1080 ℃, komaliza forging kutentha 850 ℃, ndi kuzirala mpweya pambuyo forging. Mapangidwe opangidwa ayenera kukhala abwino flake spheroidal thupi. Mapangidwe oterowo amatha kukhala spheroidized ndi annealed popanda normalizing.
②Kutentha kwanthawi zonse. The normalizing Kutentha kutentha kwa GCr15 zitsulo zambiri 900 ~ 920 ℃, ndi mlingo kuzirala sangakhale zosakwana 40 ~ 50 ℃/min. Maziko ang'onoang'ono a nkhungu amatha kukhazikika mu mpweya wokhazikika; zitsulo zazikulu za nkhungu zimatha kuzizidwa ndi kuphulika kwa mpweya kapena kupopera; Zizindikiro zazikulu za nkhungu zokhala ndi mainchesi opitilira 200mm zimatha kuzizidwa mumafuta otentha, ndikuzitulutsa kuti ziziziziritsa mpweya pamene kutentha kwapamtunda kuli pafupifupi 200 ° C. Kupsinjika kwamkati komwe kumapangidwa ndi njira yomaliza yozizira ya nkhungu yachitsulo ya tungsten ndi yayikulu komanso yosavuta kusweka. Iyenera kukhala spheroidized annealed nthawi yomweyo kapena njira yochepetsera nkhawa iyenera kuwonjezeredwa.
③Spheroidizing annealing. The spheroidizing annealing ndondomeko specifications GCr15 zitsulo zambiri: tungsten zitsulo nkhungu Kutentha kutentha 770 ~ 790 ℃, akugwira kutentha 2 ~ 4h, isothermal kutentha 690 ~ 720 ℃, isothermal nthawi 4 ~ 6h. Pambuyo pa annealing, kapangidwe kake ndi bwino komanso kofanana ndi pearlite yozungulira yokhala ndi kuuma kwa 217 ~ 255HBS ndi ntchito yabwino yodula. Chitsulo cha GCr15 chili ndi kuuma bwino (kuzama kolimba kwambiri pakuzimitsa mafuta ndi 25mm), ndipo kuya kwa wosanjikiza woumitsidwa wopezeka pansi pa kuzimitsidwa kwamafuta ndikofanana ndi chitsulo cha zida za kaboni kudzera kuzimitsidwa kwamadzi.
Nthawi yotumiza: Aug-23-2024
