Pofuna kulimbitsa kuuma kwa pamwamba ndi kukana kukalamba kwaMachubu amakona anayi a 16Mn, kukonza pamwamba, monga lawi la pamwamba, kuzimitsa pamwamba pafupipafupi, kutentha kwa mankhwala, ndi zina zotero ziyenera kuchitika pamachubu ang'onoang'ono. Kawirikawiri, malo ambiri okwera ndi apakatikati amazimitsidwa, ndipo kutentha kwa kutentha ndi madigiri 850-950. Chifukwa cha kutentha kochepa, liwiro la kutentha siliyenera kukhala lachangu kwambiri. Kupanda kutero, ming'alu yosungunuka ndi ming'alu yozimitsira idzawonekera. Kuzimitsa kwa pafupipafupi kwambiri kumafuna kuti matrix yokhazikika ikhale makamaka ya pearlite. Kuziziritsa madzi kapena yankho la polyvinyl alcohol. Kutentha kotenthetsera ndi 200-400 ℃, ndipo kuuma ndi 40-50hrc, zomwe zingatsimikizire kuuma ndi kukana kutopa kwachubu cha sikweyapamwamba.
Mfundo zazikulu zotsatirazi ziyenera kukumbukiridwa mukamazimitsaChubu cha sikweya cha 16Mn:
(1)Chitoliro chotalikirapo sichiyenera kutenthedwa molunjika mu ng'anjo yamchere kapena mu ng'anjo ya chitsime momwe zingathere, kuti achepetse kusintha komwe kumachitika chifukwa cha kulemera kwake konse.
(2)Mukatenthetsa mapaipi okhala ndi magawo osiyanasiyana mu uvuni womwewo, mapaipi ang'onoang'ono ayenera kuyikidwa kumapeto kwa ng'anjo, ndipo mapaipi akuluakulu ndi mapaipi ang'onoang'ono ayenera kuyikidwa nthawi padera.
(3)Kuchuluka kulikonse kochajira kuyenera kugwirizana ndi mphamvu ya uvuni. Kuchuluka kodyetsa kukakhala kwakukulu, kumakhala kosavuta kupanikizika ndipo kutentha kumakwera, ndipo nthawi yotenthetsera imafunika kuwonjezeredwa.
(4)Kutentha kozimitsa kwa machubu ozungulira ozungulira ozimitsidwa ndi madzi kapena madzi amchere kuyenera kutengedwa ngati malire otsika, ndipo kutentha kozimitsa kwa mafuta kapena mchere wosungunuka wozimitsidwa kuyenera kutengedwa ngati malire apamwamba.
(5)Pa nthawi yozimitsa magetsi awiri, nthawi yokhalamo mu chipangizo choyamba chozimitsa magetsi iyenera kulamulidwa motsatira njira zitatu zomwe zili pamwambapa. Nthawi yosuntha kuchokera pa chipangizo choyamba chozimitsa magetsi kupita ku chipangizo chachiwiri chozimitsa magetsi iyenera kukhala yochepa momwe ingathere, makamaka masekondi 0.5-2.
(6)Mapaipi omwe pamwamba pake sipaloledwa kusungunuka kapena kuchotsedwa mu ng'anjo yosambira yamchere kapena ng'anjo yoteteza mpweya. Ngati sichikwaniritsa zofunikira, chikhoza kutenthedwa mu ng'anjo yolimbana ndi mpweya, koma njira zodzitetezera ziyenera kutengedwa.
(7)Chubu cha rectangular cha 16Mn chikamizidwa molunjika mu chozimitsira, sichimagwedezeka, chimapita mmwamba ndi pansi, ndipo chimaletsa kusuntha kwa chozimitsira.
(8)Ngati mphamvu yoziziritsira ya ziwalo zomwe zimafuna kulimba kwambiri sikokwanira, gawo lonselo likhoza kumizidwa mu chozimitsira nthawi imodzi, ndipo ziwalozo zimatha kuziziritsidwa popopera madzi kuti ziwongolere liwiro loziziritsira.
(9)Iyenera kuyikidwa pamalo otenthetsera bwino. Kuchuluka kwa chochapira, njira yochapira, ndi mawonekedwe oyikamo ziyenera kuonetsetsa kuti kutentha kwa chochapira kuli kofanana, ndipo sizingatheke kuyambitsa kusintha kwa zinthu ndi zolakwika zina.
(10)Mukatenthetsa mu uvuni wa mchere, usakhale pafupi kwambiri ndi electrode kuti upewe kutentha kwambiri m'deralo. Mtunda uyenera kukhala wokwera kuposa 30mm. Mtunda wochokera ku khoma la ng'anjo ndi kuya kwa madzi pansi pa mulingo wamadzi uyenera kukhala wofanana ndi 30mm.
(11)Chitsulo chopangidwa ndi kapangidwe kake ndi chitsulo cha kaboni zimatha kutenthedwa mwachindunji mu ng'anjo yokhala ndi kutentha kozimitsa kapena 20-30 ℃ kuposa kutentha kozimitsa. Chitsulo chochuluka cha kaboni ndi chitsulo chosungunuka chiyenera kutenthedwa pa kutentha kwa pafupifupi 600 ℃ kenako kukwezedwa kufika kutentha kozimitsa.
(12)Kutentha kozimitsa kumatha kuwonjezeredwa moyenera pamapaipi okhala ndi gawo lolimba kwambiri, ndipo kutentha kotsika kozimitsa kumatha kusankhidwa pamapaipi okhala ndi gawo lolimba losaya kwambiri.
(13)Pamwamba pa chubu cha sikweya cha 16Mn pasakhale mafuta, sopo ndi dothi lina lililonse. Kwenikweni, kutentha kwa madzi sikuyenera kupitirira 40 ℃.
Nthawi yotumizira: Sep-16-2022
