Chithandizo cha kutentha kwapaintaneti-kuzimitsa ndi kutentha | chitsulo chitoliro kuzimitsa ndi kutentha | kuzungulira zitsulo kuzimitsa ndi kutentha

Kuchepetsa ndi kuchepetsa ndi mabuku kutentha mankhwala ndondomeko quenching ndi mkulu kutentha tempering. Ziwalo zambiri zozimitsidwa ndi kupsya mtima zimagwira ntchito pansi pa katundu wokulirapo. Amakumana ndi zovuta, kupsinjika, kupindika, kugwedezeka kapena kumeta ubweya. Malo ena amakhalanso ndi mikwingwirima, yomwe imafunikira kukana kwapang’onopang’ono ndi zina zotero. Mwachidule, mbalizo zimagwira ntchito pansi pa zovuta zosiyanasiyana. Zigawo zotere ndizomwe zimapangidwira pamakina ndi makina osiyanasiyana, monga ma shafts, ndodo zolumikizira, mabawuti, magiya, ndi zina zambiri, zomwe zimagwiritsidwa ntchito popanga mafakitale monga zida zamakina, magalimoto, ndi mathirakitala. Makamaka mbali zazikulu pakupanga makina olemera, kuzimitsa ndi kutenthetsa mankhwala amagwiritsidwa ntchito kwambiri. Choncho, kuzimitsa ndi kutentha mankhwala ali ndi udindo wofunika kwambiri pa kutentha kutentha.

Malinga ndi momwe zinthu zimagwirira ntchito pazigawozo komanso kuti zitsimikizire zofunikira zamagulu, monga kusankha kusankha kuzimitsa ndi kutentha, chinthu choyamba choyenera kuganizira ndi funso la chitsulo chomwe chimagwiritsidwa ntchito pozimitsa ndi kutentha. Kawirikawiri, mfundo zotsatirazi ziyenera kuganiziridwa:

1. Pankhani ya ntchito ya ndondomeko, kuwonjezera pa forgeability wabwino ndi machinability, chinthu chofunika kwambiri ndi hardability. Chifukwa ntchito yachitsulo imatsimikiziridwa ndi kapangidwe kazitsulo, ndipo mapangidwe achitsulo amagwirizana mwachindunji ndi kuuma kwake. Zochita zatsimikizira kuti chitsulo chimakhala ndi makina abwino kwambiri athunthu ataumitsidwa bwino komanso kupsya mtima. Pamene gawolo liri lolimba kwambiri, ziribe kanthu zitsulo za carbon kapena alloy zitsulo, ziyenera kutenthedwa ku kuuma komweko, ndipo mphamvu zake zolimba, mphamvu zopatsa mphamvu ndi mphamvu zotopa ndizofanana.

2. Pazinthu zamakina, zitsulo zitazimitsidwa ndi kutenthedwa, ntchitoyo iyenera kukwaniritsa zizindikiro zomwe zimafunidwa ndi zigawozo. Malingana ndi zofunikira zamakina zamakina ambiri ozimitsidwa ndi otenthedwa, zizindikiro zake zogwirira ntchito zili m’magulu otsatirawa. Σb: 600-1200MPa. Σs 320-800 MPa . Σs/σb : 50-60% σ-1 : 380-620MPa. Δ: 10-20% ψ: 40-50%

Kulimba kwa Brinell 170-320HB