Hot air circulation method for wave soldering machines
US5425495A · kind A · utility
3Cited by
11References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1994 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | May 6, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/42
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hot air circulation apparatus and method for wave soldering machines which heats air from a high-pressure air source and directs it at the flux applied to a printed circuit board. The heated and pressurized air also circulates air within the wave soldering machine to force the moisture out. A plurality of hot air knives are mounted adjacent heaters within the wave soldering machine and are coupled to the pressurized air source. The hot air knives include a hollow metal cylindrical member which conducts heat from the heater, and contain a plurality of orifices which increase the pressure of the air and direct the air at the flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.