Wave soldering in a protective atmosphere enclosure over a solder pot
First Claim
Patent Images
1. A method for wave soldering metal comprising surfaces on a printed circuit board, said method comprising:
- (a) applying no-clean flux to the board in air;
(b) preheating the board in air;
(c) attaching the board to a solder wave in a protective atmosphere;
(d) detaching the board from the solder wave in a controlled atmosphere;
1 Assignment
0 Petitions
Accused Products
Abstract
A short hood for enclosing and providing a protective atmosphere over not more than the solder pot of a machine for wave soldering printed circuit boards. Other operative areas of the machine are exposed to air. The entrance and exit openings to the hood for the circuit boards are covered by electrically conductive curtains of thin material cut into vertical strips. The process employs a thin layer of no-clean flux and allows up to 5% oxygen content in the protective atmosphere.
28 Citations
24 Claims
-
1. A method for wave soldering metal comprising surfaces on a printed circuit board, said method comprising:
-
(a) applying no-clean flux to the board in air; (b) preheating the board in air; (c) attaching the board to a solder wave in a protective atmosphere; (d) detaching the board from the solder wave in a controlled atmosphere; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
Specification