Kugwiritsa ntchito kwa polima quenching sing’anga yozizira mkati zothetsa zida

Kugwiritsa ntchito zida zozimitsira mbali zambiri zozimitsidwa ndi zitsulo zamkati za carbon ndi zitsulo zotsika komanso zapakatikati zopangira aloyi, ndipo kugwiritsa ntchito sing’anga yozizirira polima kwapeza zotsatira zabwino. Mwachitsanzo, pamipukutu yamalata yopangidwa ndi chitsulo cha 48CrMo, kuuma kwa mpukutu wa dzino kuyenera kukhala ≥58HRC, ndipo kuya kwake kuyenera kukhala ≥1mm. Kale, pamene madzi ankagwiritsidwa ntchito ngati njira yozimitsira, vuto la kuzimitsa ming’alu linkachitika. Kugwiritsa ntchito JY8-20 polima quenching sing’anga kuzirala kwa kopitilira muyeso-pafupipafupi ndi sing’anga-pafupipafupi kuzimitsa masikono malata akhoza bwino kuthetsa vuto kuzimitsa ming’alu. Mbali yakunja ya gawo lozimitsidwa la mpukutu wina wamalata ndi 360.96mm. Pambuyo pozimitsa kulowetsedwa ndi JY8-20 polima kuzimitsa kuzizira sing’anga, kulimba kwa pamwamba ndi 58-62HRC, ndipo kuya kwa wosanjikiza wowuma ndi 3mm. Zoposa 5,000 zidutswa za mipukutu yosiyanasiyana yamalata zidakonzedwa ndikuwumitsa popanda ming’alu.