Zinthu zomwe zimakhudza nthawi yogwira ntchito ya workpiece mu ng’anjo yamagetsi yoyesera

1. Kutentha kutentha

Nthawi zambiri, chidziwitso cha epirical nthawi zambiri chimagwiritsidwa ntchito powerengera m’ng’anjo zamagetsi zoyesera. Mwachitsanzo, chitsulo cha carbon nthawi zambiri chimawerengedwa pa 1min/1mm, pamene chitsulo cha alloy ndi 1.3 mpaka 1.8 nthawi ya carbon steel. Chifukwa chake ndi chakuti chitsulo cha alloy chimakhala ndi zinthu zambiri zopangira ma alloying. Koma pa kutentha kwakukulu (1000 ℃), ngati makulidwe abwino ndi aakulu, malire apansi a coefficient awa amagwiritsidwa ntchito, ndipo malire apamwamba a makulidwe ogwira mtima ndi ochepa.

2. Kusiyana kwazitsulo zachitsulo

Pakuti mpweya zitsulo ndi otsika aloyi zitsulo, nthawi yofunikira kwa kuvunda kwa carbides ndi homogenization wa austenite ndi yochepa kwambiri, choncho malinga ndi mmene zinthu zilili, “zero” kutentha kuteteza quenching angagwiritsidwe ntchito, amene akhoza kufupikitsa ndondomeko mkombero ndi kuchepetsa Kuzimitsa ming’alu. Kwa chitsulo chapamwamba kwambiri, kutentha kozimitsa ndi nthawi yogwira kuyenera kukulitsidwa moyenera kuti zitsimikizire kusungunuka ndi kukhazikika kwa carbides. Itha kuyerekezedwa pa 0.5 mpaka 0.8min pa millimeter pa nthawi yogwira. Pamene malire chapamwamba cha kutentha quenching ndi 0.5min, kutentha quenching zimadalira Tengani 0.8min pa malire m’munsi.