- 14
- Jan
Zowonongeka pakuchiza kutentha kwa zida zotenthetsera zotenthetsera
Zowonongeka pakuchiza kutentha kwa zida zotenthetsera zotenthetsera
Ena zofooka wamba ndi countermeasures kumwedwa kutentha mankhwala ntchito wapakatikati pafupipafupi zida zotentha,
1) Kusakwanira kuuma
zimayambitsa:
1. Mphamvu yamagetsi yamagetsi ndi yochepa, nthawi yotentha ndi yochepa, ndipo kusiyana pakati pa kutentha pamwamba ndi inductor ndi kwakukulu kwambiri, zomwe zimachepetsa kutentha kwa kutentha kwa induction, ndipo pali ferrite yochuluka yosasunthika muzitsulo zozimitsidwa.
2. Nthawi yotalikirapo kuyambira kumapeto kwa kutentha mpaka kumayambiriro kwa kuziziritsa ndi yayitali kwambiri, nthawi yopopera mbewu ndi yayifupi, kuthirira madzi sikukwanira kapena kupopera mbewu mankhwalawa ndikochepa, kuthamanga kwapakatikati koziziritsira kumakhala kocheperako, kotero kuti kusakwanira. Zomangamanga za martensitic monga troostite zimawonekera mumpangidwewo.
Njira zothanirana nazo ndi izi:
1. Wonjezerani mphamvu yeniyeni, onjezerani nthawi yotentha, ndi kuchepetsa mtunda pakati pa inductor ndi pamwamba pa workpiece.
2. Wonjezerani kutulutsa kwamadzimadzi opopera, kuchepetsa nthawi kuchokera kumapeto kwa kutentha mpaka kumayambiriro kwa kuzizira, ndikuwonjezera kuzizira.
Malo ofewa
Chifukwa: Bowo lopopera latsekedwa kapena dzenje lopoperapo ndi lopyapyala kwambiri, zomwe zimachepetsa kuzizirira kwa malo akumtunda.
Njira yolimbana nayo: Yang’anani dzenje lopopera
Lamba wofewa
Chifukwa: Pamene kutsinde workpiece ndi mosalekeza kutentha ndi kuzimitsidwa, wakuda ndi woyera ozungulira gulu limapezeka pamwamba kapena liniya wakuda gulu limapezeka m’dera lina pamodzi ndi kayendedwe ka workpiece. Pali zomanga zopanda martensitic monga ferrite yosasunthika ndi troostite m’dera lakuda.
Zimayambitsa
1. Ngodya yaying’ono yopopera, madzi akumbuyo m’malo otentha
2. Kuthamanga kozungulira kwa workpiece sikumagwirizana ndi liwiro losuntha, ndipo mtunda wa kayendedwe ka sensa ndi waukulu kwambiri pamene workpiece imazungulira kamodzi.
3. Mbali ya dzenje la kupopera sikugwirizana, ndipo chogwirira ntchito chimazungulira mozungulira mu sensa.
Kutsutsa
1. Wonjezerani ngodya yopopera
2. Gwirizanitsani liwiro la kuzungulira kwa workpiece ndi liwiro losuntha la sensa
3. Onetsetsani kuti chogwirira ntchito chimazungulira molunjika mu ng’anjo yolowera mkati mwa ng’anjo yapakatikati ya diathermy.