| 摘要 |
A tunnel enclosure (10) has entry fluid barrier curtains (18, 20) and exit fluid barrier curtains (22, 24) to provide an apparatus for soldering an element. The entry fluid barrier curtain (20) permits an additive, such as a soldering aid or the like to be included with the fluid at the curtain (20). More than one zone permits different temperatures or gas atmospheres and elements are passed from zone (30) to zone (32) with at least one fluid barrier curtain (36) between. A process for soldering comprises conveying an element on a conveyor (16) into an enclosed zone (50) through an entry (12) containing at least one fluid barrier curtain (18, 20), with an additive added to fluid in the curtain (20), heating and soldering the element in the zone (50) and conveying the element from the enclosed zone (50) through an exit (14) containing at least one fluid barrier curtain (22, 24). |
