Method of and arrangement for applying a fluid to a surface usin

Details Method of and arrangement for applying a fluid to a surface usin Method of and arrangement for applying a fluid to a surface usin

1995-06-20

1997-08-12

Bareford, Katherine A.

Coating processes

Direct application of electrical, magnetic, wave, or...

Sonic or ultrasonic

239101, 2391021, 2391022, B06B 106

Patent

active

056563396

ABSTRACT:
The invention relates to a method of applying a fluid (12) to a surface (13), the pressurised fluid being applied from a container (1) to the surface via a hollow needle (7). In order to preclude clogging of the needle the needle is subjected to a longitudinal vibration during the application of fluid. The invention also relates to an arrangement for carrying out the method, the arrangement comprising a vibration device (3), such as a piezoelectric transducer, which can be coupled to the needle (7) to set the needle into longitudinal vibration. The fluid may be, for example, a solder paste or an adhesive.

REFERENCES:
patent: 4828886 (1989-05-01), Hieber

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