| 摘要 |
<p>Fan and vertical chamber (a) are used to blow air through an upper horizontal chamber (b) and a lower horizontal chamber (c). Each chamber (b,c) contains an electric resistance air heater; and a work-table is fixed to chamber (a). A substrate, esp. a printed circuit board, can be placed on the work-table so that nozzles on chambers (b,c) can provide hot air streams for soldering or desoldering operations. Chambers (b,c) pref. contain baffles creating turbulent hot air streams; and at least one of these chambers (b,c) is pref. telescopic and can be aligned above a hole in a substrate with the aid of a guide. Appts. is portable, and can be carried in a small suitcase. It also includes a jig for straightening rows of connector pins prior to soldering.</p> |
