Electric heating – Metal heating – By arc
Patent
1980-03-19
1982-04-27
Albritton, C. L.
Electric heating
Metal heating
By arc
219121EL, 219121ES, 219121EX, B23K 1500
Patent
active
043272738
ABSTRACT:
A vacuum chamber for welding in which to place a workpiece is hermetically connected to a vacuum chamber for an electron beam gun in which to place an electron beam gun, and the former is kept at a vacuum of 1.times.10.sup.-4 Torr while the latter, at a vacuum of 1.times.10.sup.-6 Torr. The distance between the electron beam gun and the surface of the workpiece is made greater than the mean free path of gas molecules and metal vapor molecules generated in treating, e.g., 1.85 m. Two focusing coils are arranged to prevent the expansion of the electron beams.
REFERENCES:
patent: Re27005 (1970-12-01), Wingfield et al.
patent: 3082316 (1963-03-01), Greene
patent: 3378670 (1968-04-01), Smith et al.
patent: 3417222 (1968-12-01), Cannon et al.
patent: 3479483 (1969-11-01), Boring et al.
patent: 3483350 (1969-12-01), Pohl
patent: 3617686 (1971-11-01), Dietrich
patent: 3857041 (1974-12-01), Spicer
Akutsu Yoji
Karatsu Yoshinori
Kita Hisanao
Nakazaki Takamitsu
Albritton C. L.
Beall, Jr. Thomas E.
Hitachi , Ltd.
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