Kusiyana pakati pa ma frequency high and medium frequency quenching in zida zotseketsa pafupipafupi

(1) High-pafupipafupi kuzimitsa ali osaya anaumitsa wosanjikiza (1.5 ~ 2mm), mkulu kuuma, workpiece si kophweka oxidize, ali mapindikidwe yaing’ono, quenching khalidwe ndi mkulu kupanga, ndi oyenera mbali kuti ntchito pansi kukangana. zinthu, monga magiya ambiri ang’onoang’ono, Mitsinje (zida ntchito ndi 45 # zitsulo, 40Cr);

(2) The anaumitsa wosanjikiza wa wapakatikati pafupipafupi quenching ndi zakuya (3 ~ 5mm), amene ali oyenera mbali zokhotakhota ndi kukanikiza katundu, monga crankshafts, magiya lalikulu, akupera makina spindles, etc. (zida ntchito ndi 45 # chitsulo, 40Cr, 9Mn2V ndi chitsulo ductile).

(3) Kutentha kwapakati pafupipafupi 200 ~ 1000kHz 0.5 ~ 2.5 Magiya ang’onoang’ono ndi apakatikati a modulus ndi magawo a shaft apakati ndi ang’onoang’ono.

(4) Kutentha kwapakati pafupipafupi 2500～8000Hz 2 ~ 10 Mitsinje yayikulu ndi magiya akulu ndi apakatikati modulus.

Malinga ndi ma frequency apano, kutentha kwapang’onopang’ono kuzimitsa kumatha kugawidwa kukhala: pafupipafupi kuzimitsa 100-1000kHz. Wapakatikati pafupipafupi kuzimitsa 1-10kHz. Mphamvu pafupipafupi kuzimitsa 50Hz.

1. Kulimba kwa gawo lapamwamba ndi 2-3HRC yapamwamba kuposa ya kuzimitsa wamba, ndipo imakhala ndi brittleness yochepa, mphamvu ya kutopa, komanso kulimba kwamphamvu. Nthawi zambiri, workpiece akhoza ziwonjezeke ndi 20-30%.

2. The deformation ndi yaing’ono, ndipo kuya kwa kuzimitsidwa wosanjikiza ndikosavuta kuwongolera.

3. Chitsulo chotsika mtengo chotsika mtengo chingagwiritsidwe ntchito, ntchitoyo ndi yosavuta kuzindikira makina ndi makina, zokolola zimakhala zapamwamba, zowonjezereka zowonjezereka, zowonda kwambiri zosanjikiza.

(5) Zida zozimitsa pafupipafupi zimakhala 1-2mm, kuzimitsa pafupipafupi kwapakatikati kumakhala 3-5mm, ndipo kuzimitsa pafupipafupi kumatha kufika>=10-15mm.

(6) Kutentha kwapang’onopang’ono kwapang’onopang’ono: ma frequency apano ndi 100-500 kHz (kHz), ndipo kuya kwamphamvu kowumitsa ndi 0.5-2 mm (mm). Amagwiritsidwa ntchito kwambiri pazigawo zing’onozing’ono komanso zapakati zomwe zimafuna wosanjikiza woonda kwambiri, monga magiya ang’onoang’ono a Modular, ma shafts ang’onoang’ono ndi apakatikati, etc.

(7) Kutentha kwapakati pafupipafupi: ma frequency apano ndi 500 mpaka 10000 Hz (Hz), ndipo kuya kwamphamvu kolimba ndi 2 mpaka 10 mm (mm). Amagwiritsidwa ntchito kwambiri pazigawo zomwe zimafuna wosanjikiza wozama kwambiri, monga magiya okhala ndi sing’anga modulus, magiya akulu a module, ma shaft okhala ndi mainchesi akulu, ndi zina zambiri.