Karfe sanda ci gaba da induction dumama makera

Steel rod continuous shigowa dumama tanderu

In steel and machinery manufacturing plants, when the output is large, the continuous induction heating method for steel bars is now used more. After the steel rod is heated, it is subjected to hot shearing, and then die forging or stamping.

Hoto 12-51 saitin sandar karfe tsaka-tsakin mitar mai ci gaba da shigar da wutar makera. Ana sanya sandar ƙarfe a kan dandamalin girgizar ɗimbin ciyarwa, kuma an ja shi zuwa titin tseren ciyarwa ta hanyar injin ja ta atomatik, wanda ke motsa shi ta hanyar ƙa’idar saurin motsi na DC motor. Abin nadi na ciyarwa yana ciyar da mashaya zuwa inductor don dumama shigar da shi. An ƙayyade adadin firikwensin bisa ga diamita na mashaya da fitarwa. Waɗannan na’urori masu auna firikwensin an shirya su a madaidaiciyar layi. Ana amfani da wannan tanderun dumama mai ci gaba da ɗorawa don dumama sandunan ƙarfe tare da tsayin Φ55 – Φ 100 mm da tsayin 6m. The dumama zafin jiki ne t = 1200 ℃ ± 25Y, wato, da zazzabi bambanci tsakanin surface da kuma core na mashaya ne 50 ℃, da yawan aiki ne 3600kg / h. Ana amfani da inverter na thyristor, mita shine 1100Hz, ƙarfin shine 1 320kW, kuma an nuna ma’auni masu dacewa na inductor a cikin Table 12-10.

Hoto 12-51 Tanderun dumama na ci gaba

Tebur 12-10 Siffofin fasaha na firikwensin

Karfe sanda diamita / mm	% 55 – % 65	% 70 – % 80	% 85 – % 100
Nada yana juyawa/juyawa	31	27	27
Diamita na ciki / mm	% 110	% 130	% 155
Lining diamita na ciki / mm	% 90	% 105	% 125
Tsaftataccen bututun jan karfe /mm	16 x 16	14 x14	14 x14
Tashin ruwa/a	2	2	2
Voltage/V	325	325	325
Yanzu /A	2700	2600	2400
Mitar na yanzu /Hz	1100	1100	1100

An raba inductor zuwa rukuni uku bisa ga diamita na sandunan karfe. Lokacin dumama sandunan ƙarfe na diamita daban-daban, dole ne a maye gurbin inductor masu dacewa. Har zuwa inductor 10 za a iya shigar a kan tanderun dumama induction. Tsawon coil na inductor shine 550mm. Bayan gyaran gyare-gyare, an yi amfani da na’ura tare da wani nau’i na zafi mai zafi wanda aka yi da ulu mai ma’adinai da kuma kayan da aka yi da zafi mai zafi. A ƙarshe, ana amfani da katakon siminti na asbestos don yin akwati, kuma ana gyara nada a cikin akwatin. . Tsawon kowane akwati shine 600mm, nisan shigarwa tsakanin akwatin da akwatin shine 200mm, kuma an shigar da tallafin ciyarwa a tsakanin.

Ƙarfin wutar lantarki na inductor shine cewa inductor guda biyu an haɗa su a cikin jerin farko, sannan a haɗa su a layi daya akan layin wutar lantarki, kamar yadda aka nuna a cikin Hoto 12-52.

Hoto 12-53 layin samar da dumama mai ci gaba ne wanda wani kamfani na waje ya ƙera tare da ƙarfin 12MW, jimlar inductor 26, da tsayin 157 m (47.86m).