Wopanga Zitsulo

Zaka 15 Zopanga Zopanga
Chitsulo

Mfundo zingapo wamba mankhwala kutentha

1. Zokhazikika:
Njira yochizira kutentha yomwe zitsulo kapena zitsulo zing'onozing'ono zimatenthedwa kutentha koyenera pamwamba pa mfundo yovuta AC3 kapena ACM, yosungidwa kwa nthawi inayake, ndiyeno itakhazikika mumlengalenga kuti ipeze mawonekedwe a pearlite.

2. Kusintha:
Njira yochizira kutentha yomwe zida zachitsulo za hypoeutectoid zimatenthedwa mpaka madigiri 20-40 pamwamba pa AC3, zimatenthedwa kwakanthawi, kenako zimazirala pang'onopang'ono mu ng'anjo (kapena kukwiriridwa mumchenga kapena utakhazikika mu laimu) mpaka pansi pa madigiri 500. mpweya.

3. Solid solution kutentha:
Njira yochizira kutentha yomwe aloyi imatenthedwa ndi kutentha kwakukulu ndikusungidwa kutentha kosalekeza m'chigawo cha gawo limodzi kuti isungunuke mopitirira muyeso mu njira yolimba, ndiyeno itakhazikika mofulumira kuti ipeze yankho la supersaturated olimba.

4. Kukalamba:
Pambuyo pa alloy yakhala ikulimbana ndi chithandizo cholimba cha kutentha kapena kuzizira kwa pulasitiki, katundu wake amasintha ndi nthawi yomwe imayikidwa pa kutentha kapena kutentha pang'ono.

5. Chithandizo chokhazikika chamankhwala:
Sungunulani kwathunthu magawo osiyanasiyana mu aloyi, limbitsani yankho lolimba ndikuwongolera kulimba ndi kukana dzimbiri, kuthetsa kupsinjika ndi kufewetsa, kuti mupitilize kukonza ndi kupanga.

6. Chithandizo cha ukalamba:
Kutentha ndi kugwira pa kutentha kumene kulimbikitsa gawo precipitates, kuti kulimbikitsa gawo precipitates ndi kuumitsa, kuwongolera mphamvu.

7. Kuthetsa:
Njira yochizira kutentha yomwe zitsulo zimakhazikika ndikuzizizira pamlingo woyenera woziziritsa kuti chogwiriracho chikhale ndi kusintha kosakhazikika kwamapangidwe monga martensite muzonse kapena mkati mwa gawo lina la mtanda.

8. Kutentha:
Njira yochizira kutentha yomwe ntchito yozimitsidwa imatenthedwa ndi kutentha koyenera pansi pa mfundo yofunika kwambiri ya AC1 kwa nthawi inayake, kenako itakhazikika pogwiritsa ntchito njira yomwe imakwaniritsa zofunikira kuti mupeze mawonekedwe ofunikira ndi katundu.

9. Carbonitriding zitsulo:
Carbonitriding ndi njira imodzi yolowetsa mpweya ndi nayitrogeni muzitsulo zachitsulo. Mwachikhalidwe, carbonitriding imatchedwanso cyanidation. Panopa, sing'anga kutentha mpweya carbonitriding ndi otsika kutentha mpweya carbonitriding (ie, mpweya wofewa nitriding) amagwiritsidwa ntchito. Cholinga chachikulu cha sing'anga kutentha mpweya carbonitriding ndi kusintha kuuma, kuvala kukana ndi kutopa mphamvu ya chitsulo. Otsika kutentha mpweya carbonitriding makamaka nitriding, ndipo cholinga chake chachikulu ndi kusintha kuvala kukana ndi kulanda kukana chitsulo.

10. Kuzimitsa ndi kutentha:
Nthawi zambiri ndi chizolowezi kuphatikiza kuzimitsa ndi kutentha kwambiri ngati chithandizo cha kutentha chotchedwa quenching ndi tempering. Chithandizo chozimitsa ndi kutentha chimagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana ofunikira, makamaka zolumikizira, mabawuti, magiya ndi ma shafts omwe amagwira ntchito mosinthasintha. Pambuyo pozimitsa ndi kutenthetsa mankhwala, mawonekedwe a sorbite amapezedwa, ndipo mawonekedwe ake amakina ndi abwino kuposa amtundu wa sorbite wokhazikika ndi kuuma komweko. Kulimba kwake kumadalira kutentha kwa kutentha kwapamwamba ndipo kumagwirizana ndi kukhazikika kwachitsulo ndi kukula kwa gawo la workpiece, makamaka pakati pa HB200-350.

11. Kuwotcha:
Njira yochizira kutentha yomwe imagwiritsa ntchito brazing kuti imangirire zida ziwiri zogwirira ntchito pamodzi.


Nthawi yotumiza: Apr-11-2024