Patent ID: 6851596
Filing Date: 2005-02-08
Classification: B23K

Abstract:
1. A wave soldering apparatus comprising: a solder reservoir for holding a pool of molten solder; at least one heater operatively associated with said solder reservoir to maintain the molten solder at a preset temperature, said at least one heater including a heating element and a cover made of stainless steel and disposed to enclose said heating element; at least one solder wave nozzle at least partly submerged in the pool of molten solder and made of stainless steel, said at least one solder wave nozzle including a plurality of nozzle openings; and at least one pump operatively connected to said at least one solder wave nozzle and at least partly made of stainless steel, said at least one pump being operable to draw the molten solder into said at least one nozzle and force the molten solder upwardly through said plurality of nozzle openings to form a solder wave, said at least one solder wave nozzle and part of said at least one pump being surface-treated with nitrogen.