Kuwotchandi kukhetsa madziNdi njira ziwiri zomwe zimagwiritsidwa ntchito kwambiri polimbitsa pamwamba pa chitsulo. Zonse ziwiri zimawonjezera mphamvu za pamwamba pa chitsulo, koma zimasiyana kwambiri pa mfundo za momwe chimagwirira ntchito, momwe chimagwiritsidwira ntchito, ndi mphamvu za zinthu zomwe zimatsatira.
1. Mfundo Zoyendetsera Ntchito
●Kupaka mafuta:
Njirayi ikuphatikizapo kutenthachitsulo chotsika mpweya kapena chitsulo chosakanikirana ndi aloyimumlengalenga wodzaza ndi mpweya wambirikutentha kwambiri. Kaboni imawola, kutulutsamaatomu a kaboni ogwira ntchitozomwe zimafalikira pamwamba pa chitsulo, zomwe zimawonjezerakuchuluka kwa mpweyandikuthandizira kuuma pambuyo pake.
●Kuchotsa poizoni:
Kutulutsa madzi m'thupi (Nitriding) kumayambitsamaatomu a nayitrogeni ogwira ntchitokulowa pamwamba pa chitsulo pa kutentha kwakukulu. Maatomu awa amachitapo kanthu ndi zinthu zosakaniza (monga Al, Cr, Mo) mu chitsulo kuti apangenitride zolimba, kumawonjezera kuuma kwa pamwamba ndi kukana kukalamba.
2. Kutentha ndi Nthawi
| Chizindikiro | Kuwotcha | Kutaya madzi |
| Kutentha | 850°C – 950°C | 500°C – 600°C |
| Nthawi | Maola angapo mpaka makumi ambiri | Makumi ndi mazana a maola |
Dziwani: Kuyika nitriding kumachitika kutentha kochepa koma nthawi zambiri kumatenga nthawi yayitali kuti pakhale kusintha kofanana ndi pamwamba.
3. Kapangidwe ka Gawo Lolimba
Kuuma ndi Kukana Kuvala
●Kupaka mafuta:Amapeza kuuma kwa pamwamba pa58–64 HRC, zomwe zimapangitsa kuti zisamawonongeke bwino.
●Kuchotsa poizoni:Zotsatira za kuuma kwa pamwamba pa1000–1200 HV, nthawi zambiri imakhala yayitali kuposa malo opangidwa ndi carburized, yokhala ndikukana bwino kuvala.
Mphamvu ya Kutopa
●Kupaka mafuta:Zimasintha kwambirikupindika ndi mphamvu yotopa.
●Kuchotsa poizoni:Komanso kumawonjezera mphamvu ya kutopa, ngakhale kuti nthawi zambiripang'onokuposa kuwotcha.
Kukana Kudzikundikira
●Kupaka mafuta:Kukana dzimbiri kochepa.
●Kuchotsa poizoni:Amapangawosanjikiza wa nitride wokhuthalakuperekakukana dzimbiri kwapamwamba.
4. Zipangizo Zoyenera
●Kupaka mafuta:
Zabwino kwambiri pazitsulo zopanda mpweya woipa komanso zitsulo zopanda mpweya woipaNtchito zomwe anthu ambiri amagwiritsa ntchito zimaphatikizapomagiya, shaft, ndi zigawo zakeakukumana ndi mavuto ambiri komanso kukangana.
●Kuchotsa poizoni:
Zabwino kwambiri pa zitsulo zokhala ndizinthu zophatikizamonga aluminiyamu, chromium, ndi molybdenum. Kawirikawiri amagwiritsidwa ntchito pazida zolondola, nkhungu, ma diesndizida zogwiritsidwa ntchito kwambiri.
5. Makhalidwe a Njira
| Mbali | Kuwotcha | Kutaya madzi |
| Ubwino | Zimapanga gawo lolimba kwambiri | Yotsika mtengo Imagwira ntchito kwambiri Kusokonezeka kochepa** chifukwa cha kutentha kochepa Palibe chozimitsa chofunikira Kuuma kwambiri komanso kukana dzimbiri |
| Zoyipa | Kutentha kwambiri kungayambitselakwitsidwa Imafunika kuzimitsa pambuyo pa carburizing | Kuvuta kwa njira kumawonjezeka Kuzama kwa chikwama chocheperako Nthawi yayitali yozungulira Mtengo wokwera |
Chidule
| Mbali | Kuwotcha | Kutaya madzi |
| Kuzama kwa Gawo Lolimba | Zakuya | Wosaya kwambiri |
| Kuuma kwa pamwamba | Pakati mpaka pamwamba (58–64 HRC) | Pamwamba kwambiri (1000–1200 HV) |
| Kukana Kutopa | Pamwamba | Pakati mpaka pamwamba |
| Kukana Kudzikundikira | Zochepa | Pamwamba |
| Chiwopsezo cha kusokonezeka | Kukwera (chifukwa cha kutentha kwambiri) | Zochepa |
| Pambuyo pa chithandizo | Imafunika kuzimitsa | Palibe chozimitsa chofunikira |
| Mtengo | Pansi | Zapamwamba |
Kuyika mafuta mu carburizing ndi nitriding zonse zili ndi ubwino wapadera ndipo zimasankhidwa kutengerazofunikira pa ntchito, kuphatikizapomphamvu yonyamula katundu, kukhazikika kwa mawonekedwe, kukana kuvalandimomwe zinthu zilili.
Shaft ya Giya Yopanda Nitride
Nthawi yotumizira: Meyi-19-2025