Method and apparatus for controlling a brazing machine

Details Method and apparatus for controlling a brazing machine Method and apparatus for controlling a brazing machine

1978-10-12

1980-09-23

Reynolds, B. A.

Electric heating

Metal heating

For bonding with pressure

2191171, B23K 1124

Patent

active

042244960

ABSTRACT:
A novel control arrangement is provided for controlling the operation of the heating electrodes of a brazing machine for forming a joint between an armature wire and a commutator bar. The heating electrodes are brought into contact with the armature wire and commutator bar at the point where they are to be joined, and fiber-optic means are provided for collecting radiant energy emitted from a point at or adjacent to the joint area as the joint is being heated. The collected radiant energy is converted into a usable electronic signal representative of the temperature at the joint area, and the heating electrodes are actuated on and off in response to the electronic signal when the temperature at the joint reaches predetermined upper and lower temperature levels. As a result, the temperature of the heating electrodes and joint area is maintained within a desired temperature range while the joint is being formed.

REFERENCES:
patent: 2817747 (1957-12-01), Devonshire et al.
patent: 3406272 (1968-10-01), Ehrlich
patent: 3440389 (1969-04-01), Meyer
patent: 3778581 (1973-12-01), Denny
patent: 4079225 (1978-03-01), Warner

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