Method of and apparatus for limiting ingress of gas to incipient

Details Method of and apparatus for limiting ingress of gas to incipient Method of and apparatus for limiting ingress of gas to incipient

1995-07-27

1997-10-14

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164415, 164437, 222603, 222606, B22D 1110, B22D 4158

Patent

active

056761953

ABSTRACT:
Ingress of gas such as air through the joint of a pour tube and tube holder of a continuous caster is prevented or inhibited by passing an inert gas into a circumferential channel around the orifice and at the interface of the joint; the gas is evenly distributed within the channel over the entire configuration of a porous refractory insert in the circumferential channel; the porous refractory insert assures even distribution of the gas to the desired location in the joint.

REFERENCES:
patent: 3253307 (1966-05-01), Griffiths et al.
patent: 3459346 (1969-08-01), Tinnes
patent: 3731912 (1973-05-01), Kutzer
patent: 3838798 (1974-10-01), Voss
patent: 3887117 (1975-06-01), Fehling
patent: 4003561 (1977-01-01), Cudby
patent: 4429816 (1984-02-01), Thrower
patent: 4576317 (1986-03-01), Wenger
patent: 4854487 (1989-08-01), Ando et al.
patent: 5100034 (1992-03-01), Russo
patent: 5118016 (1992-06-01), Eisermann et al.
Translation of Japanese Patent Publication 59-225862 published Dec. 18, 1984.

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