Methods and apparatus for adhesively bonding an orifice plate to

Details Methods and apparatus for adhesively bonding an orifice plate to Methods and apparatus for adhesively bonding an orifice plate to

1994-08-30

2000-06-27

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2135

Patent

active

060798106

ABSTRACT:
An orifice plate is operatively secured to the open front end of an internally chambered piezoelectric ceramic body portion of an ink jet print head assembly material using an adhesive material. In securing these two components to one another, a layer of the adhesive material is applied to the front end of the print head body and the orifice plate is pressed against the adhesive layer. The ultimate bond strength of the adhesive material is substantially increased by the presence of a spaced plurality of bonding holes formed through the orifice plate and aligned with a spaced plurality of bonding openings extending inwardly through the front end of the print head body. As the orifice plate is pressed against the body, substantial portions of the initially applied adhesive material layer are forced into the aligned holes and openings. When the overall adhesive body hardens, the bond interfaces between these adhesive portions and the interior side surfaces of the holes and openings receiving them resist outward separation of the orifice plate from the print head body in shear, thereby substantially increasing the overall securement strength of the hardened adhesive material.

REFERENCES:
patent: 3962015 (1976-06-01), Heimann
patent: 4115178 (1978-09-01), Cone et al.
patent: 4274901 (1981-06-01), Elber
patent: 4528578 (1985-07-01), Matsuda et al.
patent: 4668548 (1987-05-01), Lankard
patent: 4954383 (1990-09-01), King et al.
patent: 5189437 (1993-02-01), Michaelis et al.

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