Low emissions method for spray application of conformal coating

Details Low emissions method for spray application of conformal coating Low emissions method for spray application of conformal coating

1996-09-26

1999-02-16

Beck, Shrive

Coating processes

Spraying

Moving the base

4273855, 427386, 427387, 427 96, B05D 102, B05D 302, B05D 512

Patent

active

058718222

ABSTRACT:
An apparatus and method for applying a conformal coat to an electronic assembly which significantly reduces the emissions which are a by-product of the process. A spray gun atomizes a conformal coat/solvent mixture at a high pressure within the gun and then emits the mixture at a low volume and low pressure such that the transfer rate of the material is very high and the amount of wasted material is very low. The coats are applied in such a manner that the electronic assembly can be sprayed multiple times before sending the entire assembly into the curing oven.

REFERENCES:
patent: 3652333 (1972-03-01), Warren
patent: 4634603 (1987-01-01), Gruss et al.
patent: 4880663 (1989-11-01), Shimada
patent: 5266349 (1993-11-01), Bok
patent: 5294459 (1994-03-01), Hogan et al.
patent: 5510138 (1996-04-01), Sanftleben et al.

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