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DEVICE FOR INJECTING NEUTRAL GAS, IN PARTICULAR NITROGEN, FOR WAVE-WELDING MACHINE AND WAVE-WELDING MACHINE PROVIDED WITH SUCH A SYSTEM
DEVICE FOR INJECTING NEUTRAL GAS, IN PARTICULAR NITROGEN, FOR WAVE-WELDING MACHINE AND WAVE-WELDING MACHINE PROVIDED WITH SUCH A SYSTEM
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机译：带有这种系统的波峰焊机和波峰焊机的中性气体喷射装置
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摘要
According to the invention, nitrogen (N2) is injected into a restricted zone (ZS) situated below the printed circuit board to be welded (5). A pipe (35), immersed in the molten weld (30), injects the nitrogen (N2) preheated in this zone (ZS). This injection is controlled by a cover (33) floating on the wave (Va). BR/ In a preferred embodiment, the nitrogen (N2) cools the pump body before being preheated.
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