Industrial electric heating furnaces – Electroslag remelting device – Electrode
Patent
1993-06-09
1996-06-04
Hoang, Tu
Industrial electric heating furnaces
Electroslag remelting device
Electrode
373 82, 373 88, 75 1023, H05B 360
Patent
active
055240194
ABSTRACT:
An object of the invention is to provide an ingot having improvement of and a prevention of occurrence of segregation when electroslag remelting method is used for producing a large size ingot and a super alloy which is sensitive to segregation. According to the present invention, the electrode for electroslag remelting method has a hole formed along an axial direction in the core of an electrode. Therefore, the molten pool is made shallow so that flat and segregation is prevented from occurring. Consequently, an ESR ingot of good quality is accomplished with an excellent surface and is free from segregation. Moreover, an electrode melting rate is increasing and efficiency is improved.
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Steel in the USSR, Oct. 1986, London, GB, "Rate of melting of hollow consumable electrodes in vacuum arc remelting," V. V. Loza and A. A. Udovista, pp. 478-480.
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Azuma Tsukasa
Ichinomiya Yoshiaki
Ishizaka Junji
Itagaki Junji
Ohhashi Shuzo
Hoang Tu
The Japan Steel Works Ltd.
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