Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By means introducing treating material
Patent
1975-03-24
1977-03-08
Lake, Roy
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
By means introducing treating material
C21C 700
Patent
active
040109380
ABSTRACT:
A metal treatment gun for selectively introducing particulate metal treating material into a metallic melt below its surface which has a discharge member defining a first chamber therein closed at its upstream end and open at its downstream end so that the metallic melt will be in communication with the chamber when the downstream end is inserted below the surface of the metallic melt, an injection member defining an injection passage therethrough communicating with the first chamber intermediate its ends along with fluid drive means for forcing a fluid propellant through the passage in the injection member and into the chamber in the discharge member with feed means for introducing the particulate metal treating material into the fluid propellant flowing through the injection passage in the injection member in response to the pressure of the fluid propellant in the injection member, and pressure relief means for controlling the pressure in the chamber and the discharge member when its downstream end is in communication with the metallic melt independently of the pressure of the fluid propellant in the passage through the injection member. The disclosure also contemplates the method of operating the metal treatment gun.
REFERENCES:
patent: 2502259 (1950-03-01), Hulme
patent: 2858125 (1958-10-01), Clenny et al.
patent: 3001864 (1961-09-01), Muller et al.
patent: 3137753 (1964-06-01), Feichtinger
patent: 3365242 (1968-01-01), Marchetti
patent: 3615085 (1971-10-01), Bernsmann
patent: 3891196 (1975-06-01), Forster et al.
patent: 3929185 (1975-12-01), Wiener
Bell Paul A.
Lake Roy
Powell B. J.
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