Ndi magetsi amtundu wanji wapakati omwe angakwaniritse zofunikira za ng’anjo yosungunula yosungunula?

1 The output power requirements of the chowotcha kutentha for the thyristor intermediate frequency power supply.

Mphamvu yotulutsa ya thyristor yapakatikati yamagetsi yamagetsi iyenera kukumana ndi mphamvu yayikulu ya ng’anjo yosungunuka, ndipo mphamvu yotulutsa imatha kusinthidwa mosavuta. Izi ndichifukwa choti moyo wa ng’anjo yosungunuka ya induction nthawi zambiri umakhala pafupifupi makumi ang’anjo ndipo umawonongeka. Chophimba cha ng’anjo cha crucible chiyenera kumangidwanso, ndipo pambuyo pomanga ng’anjo yatsopano ya ng’anjo, ng’anjo yotsika mphamvu iyenera kuchitidwa pa izo. 10% nthawi ndi nthawi mpaka mphamvu yovotera mphamvu. Komanso, mu ng’anjo ya ng’anjo, pamene ndalamazo zimasungunuka, zomwe zimapangidwira ziyenera kuyesedwa. Pakuyezetsa, pofuna kupewa mlandu kusungunuka ndi kuwira mwamphamvu, wapakatikati pafupipafupi mphamvu magetsi ayenera kuchepetsa linanena bungwe mphamvu kusunga mlandu kutentha. Poganizira zomwe zili pamwambazi, zimafunika kuti mphamvu yapakati ya thyristor ikhale yosavuta kusintha kuchokera ku 20% -10% ya mphamvu yovomerezeka. Ng’anjo ya diathermic yomwe imagwiritsidwa ntchito pofota ilibe njira yophika.

2 Zomwe zimafunikira pafupipafupi za ng’anjo yosungunuka ya induction ya thyristor intermediate frequency power supply.

Ubale pakati pa mphamvu zamagetsi ndi kuchuluka kwa ng’anjo yosungunula induction ikugwirizana. Kuyambira pakuchita bwino kwamagetsi, ma frequency amtundu wa thyristor wapakati pafupipafupi amatha kutsimikizika. Mwachitsanzo, timatcha ma frequency awa fo. Inductor kwenikweni ndi coil inductive, ndipo kuti athe kubweza mphamvu yogwira ntchito ya koyiloyo, capacitor imalumikizidwa mofananira malekezero onse a koyilo, yomwe imapanga LC oscillating circuit. Pamene linanena bungwe pafupipafupi f wa inverter thyristor ndi wofanana zachilengedwe oscillation pafupipafupi fo wa induction kusungunula ng’anjo loop, ndiye chinthu mphamvu ya kuzungulira ndi wofanana 1. Mphamvu pazipita adzapezedwa mu induction kusungunula ng’anjo. Zitha kuwoneka kuchokera pamwambapa kuti ma frequency oscillation achilengedwe a loop amagwirizana ndi mfundo za L ndi C. Nthawi zambiri, mtengo wa compensation capacitor C umakhazikika, pomwe inductance L imasintha chifukwa cha kusintha kwa permeability coefficient of ng’anjo zinthu. The permeability coefficient μ ya ng’anjo yozizira chitsulo ndi yaikulu kwambiri, kotero inductance L ndi yaikulu, ndipo pamene kutentha kwa chitsulo ndi apamwamba kuposa Curie mfundo, ndi permeability koyefit μ = 1 chitsulo, kotero inductance L amachepetsa, kotero The induction melting ng’anjo loop Ma frequency oscillation achilengedwe asintha kuchokera kutsika kupita kumtunda. Pofuna kuti ng’anjo yosungunula yosungunula nthawi zonse ipeze mphamvu zambiri panthawi yosungunula, izi zimafuna kuti ma frequency amtundu wa f wa thyristor wapakatikati pamagetsi amatha kusintha ndi kusintha kwa fo, ndipo nthawi zonse sungani kufufuza pafupipafupi.

3 Zina zofunika pa thyristor wapakatikati pafupipafupi magetsi.

Izi ndichifukwa choti ng’anjo ya ng’anjo ikasungunuka, mphamvu yapakatikati ikalephera, crucible imawonongeka pakavuta kwambiri. Chifukwa chake, mphamvu yamagetsi yapakatikati ya thyristor imafunika kuti igwire ntchito modalirika, iyeneranso kukhala ndi chitetezo chokwanira chochepetsa mphamvu yamagetsi, chitetezo champhamvu kwambiri komanso chopitilira pano, komanso kudulidwa kwamadzi. Chitetezo, ndi zida zina zodzitetezera zokha. Kuphatikiza apo, pamafunika kuti mphamvu yamagetsi yapakatikati ya thyristor ikhale yopambana poyambira, ndipo kuyimitsa koyambira kuyenera kukhala kosavuta.