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Kodi pali kusiyana kotani pakati pa high frequency quenching ndi intermediate frequency quenching?

Kodi pali kusiyana kotani pakati Kuthetsa pafupipafupi ndi quenching wapakatikati pafupipafupi?

Mfundo yogwirira ntchito yozimitsa pafupipafupi komanso kuzimitsa pafupipafupi ndi yofanana ndi yotenthetsera induction: ndiye kuti, chogwirira ntchito chimayikidwa mu inductor, ndipo inductor nthawi zambiri imakhala chubu chamkuwa chomwe chimalowetsa ma frequency apakati kapena ma frequency alternating current. (1000-300000Hz kapena apamwamba). Mphamvu ya maginito yosinthira imapanga ma frequency ofananirako muzogwirira ntchito. Kugawidwa kwamakono opangidwa ndi izi mu workpiece sikufanana, kumakhala kolimba pamwamba, koma kofooka kwambiri mkati, ndipo kuli pafupi ndi 0 pakati. Izi khungu zotsatira ntchito. , pamwamba pa workpiece akhoza kutenthedwa mofulumira, kutentha kwa pamwamba kumakwera mpaka 800-1000 ℃ mumasekondi pang’ono, ndipo kutentha kwa gawo lapakati kumakhala kochepa kwambiri.

Komabe, panthawi yotenthetsera, kugawidwa kwa magetsi opangidwa ndi makina ogwirira ntchito kumakhala kosagwirizana, ndipo kutentha komwe kumapangidwa ndi ma frequency osiyanasiyana kumasiyananso. Kenako, kusiyana pakati pa kuzimitsa kwafupipafupi kwambiri ndi kuzimitsa kwapakati pafupipafupi kumabwera:

1. High pafupipafupi kuzimitsa

Ma frequency apano pakati pa 100 ndi 500 kHz

Osaya osakhazikika wosanjikiza (1.5 ~ 2mm)

Ubwino pambuyo quenching mkulu pafupipafupi: kuuma mkulu, workpiece si kophweka oxidized, mapindikidwe ang’onoang’ono, khalidwe quenching ndi wabwino, ndipo kupanga dzuwa ndi mkulu.

Kuzimitsa pafupipafupi kumakhala koyenera kwa magawo omwe amagwira ntchito mokangana, monga magiya ang’onoang’ono ndi ma shafts (zida zomwe zimagwiritsidwa ntchito ndi 45 # chitsulo, 40Cr)

2. Kuthetsa pafupipafupi

Ma frequency apano ndi 500 ~ 10000 Hz

Wowuma wosanjikiza ndi wakuya (3-5mm)

Kuzimitsa pafupipafupi kwapakatikati kuli koyenera kwa magawo omwe amakhotakhota komanso kupanikizika, monga ma crankshafts, magiya akulu, ma spindles akupera makina, ndi zina zambiri.

Mwachidule, chimodzi mwa zosiyana zoonekeratu pakati pa kuzimitsa kwafupipafupi ndi kuzimitsa kwapakati-pakatikati ndi kusiyana kwa kutentha kwa kutentha. Kuzimitsa pafupipafupi kumatha kuumitsa pamwamba pakanthawi kochepa, mawonekedwe a kristalo ndiabwino kwambiri, ndipo mawonekedwe ake ndi ochepa. Khalani ochepa.