B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
117/58, 32/60
B05B 7/16 (2006.01) B05B 7/22 (2006.01) C23C 4/12 (2006.01) H05H 1/34 (2006.01) H05H 1/40 (2006.01)
Patent
CA 1100364
ABSTRACT A metal melt-spraying method for forming deposition film without shrinkage and distorsion by jetting out a high pressure air to give a jet stream from a slight gap formed between a spray nozzle and a conical tube placed in said spray nozzle to partition a space in said spray nozzle into two zones, electrically melting metal wires in a low atmospheric pressure zone formed in said jet air stream, driving the resulting molten metal droplets toward said jet air stream by a small air stream, pulverizing said molten metal droplets by said jet air stream into fine particles, simultaneously cooling rapidly said particles to solidify by said jet air stream and then blowing said particles onto a work surface, in which the improvements are that velocity or volume of the jet air stream is adjusted according to a metal material and melting rate, and that one of two metal wires which are electrodes is made of a hard-to-melt material and is semi-fixed, or only single metal wire is used and is molten by using high frequency. Metal melt-spraying equip- ments employed for carrying out the method are easy to handle and can yield good quality metal deposition film.
302408
Kasagi Ryoichi
Marks & Clerk
LandOfFree
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