Metal founding – Process – With measuring – testing – inspecting – or condition determination
Patent
1981-09-01
1984-08-14
Hampilos, Gus T.
Metal founding
Process
With measuring, testing, inspecting, or condition determination
164495, 164514, B22D 4600, B22D 2702
Patent
active
044651198
ABSTRACT:
A method for casting material melted by arc discharge and an arc melting apparatus useful with a precision casting machine, the invention is practiced by initiation of an arc discharge at an arc current lower than the steady state current normally used for arc melting, thereby to prevent starting shock. Current level is subsequently increased in a rapid and regular manner to a steady state current for melting in a stable manner the material which is to be cast. The apparatus of the invention includes a small and compact arc power source provided with apparatus for controlling the arc current which is applied to the material to be melted. When utilized with a precision casting apparatus, the invention improves the manufacture of artificial teeth, accessories, industrial mechanical parts and the like.
REFERENCES:
patent: 3410946 (1968-11-01), Dilling et al.
patent: 3767831 (1973-10-01), Plockinger et al.
patent: 4036278 (1977-07-01), Ramacciotti
patent: 4207516 (1980-06-01), Babcock
patent: 4254817 (1981-03-01), Kidowaki et al.
patent: 4357706 (1982-11-01), Kidowaki
Kidowaki Yoshimasa
Yonemoto Akira
Hampilos Gus T.
Johnson Jerold L.
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