M’minda yomwe ndi njira yochepetsera Kutentha kwapafupipafupi makamaka ntchito?

Choyamba, pofuna kuchepetsa kuuma workpiece zitsulo ndi kubala zitsulo pambuyo forging, workpiece ndi usavutike mtima kuti pamwamba 20-40 digiri Celsius, ndiyeno pang’onopang’ono utakhazikika, kuti lamellar simenti mu pearlite amakhala ozungulira pa ndondomeko yozizira. , kuchepetsa kuuma kwa chitsulo, chodabwitsa ichi ndi spheroidizing annealing.

Chachiwiri, kuti tipange zigawo za alloy kuponyera mofanana, tikhoza kutenthetsa workpiece ku kutentha kwina, koma poganiza kuti sangathe kusungunuka, sungani kutentha kwa nthawi kuti mulole zigawo zamkati za mkati. workpiece kuti igawidwe mofanana ndiyeno kuziziritsa. Kupangitsa kuti ikwaniritse zinthu zina zamakemikolo kuti igwire bwino ntchito, njira yotenthetsera iyi ndi kufalitsa annealing.

Chachitatu, zitsulo zoponyera zitsulo ndi zigawo zowotcherera nthawi zambiri zimakhala ndi nkhawa zamkati. Titha kugwiritsa ntchito zida zotenthetsera zotentha kwambiri kuti ziwotche, ndipo kutentha kuyenera kukhala pansi pa 100-200 ° C, ndikusiya kuzizizira mwachilengedwe. Kuchepetsa kupsinjika.

Chachinayi, kuti tipange chitsulo chokhala ndi simenti kukhala chitsulo chapulasitiki, titha kugwiritsanso ntchito zida zotenthetsera zotenthetsera pang’onopang’ono kutentha mpaka madigiri pafupifupi 1000, ndikuzilola kuti zizizizira pang’onopang’ono, kuti simenti yamkati iwonongeke. mu flocculent graphite, ndipo njira yotenthetsera iyi ndi graphite annealing.

Chachisanu, mwachitsanzo, pakupanga kuzizira kozizira kapena kujambula kozizira, chodabwitsa choumitsa chimapezeka muzitsulo zazitsulo ndi mapepala. Kuti tichotse chodabwitsa ichi, tiyenera nthawi yomweyo kuwongolera kutentha kwa workpiece ikatenthedwa kufika madigiri 50-150 Celsius. Kuti kuumitsa workpiece kufewetsa chitsulo, Kutentha njira ndi recrystallization annealing.