| 摘要 |
An inkjet print head includes a piezoelectric actuator plate and first through third ink channel plates, which are stacked and bonded together by a thermo-setting adhesive. The piezoelectric actuator plate is made of a material (such as lead zirconate titanate) that has a linear expansion coefficient smaller than those of the first through third ink channel plates. The piezoelectric actuator plate is bonded to the first ink channel plate, which is formed of a material (aluminum alloy, for example) having the linear expansion coefficient larger than those of the second and third ink channel plates. The second and third ink channel plates are formed of ferritic stainless steel or the like, and are stacked on the bottom of the first ink channel plate. No warping or deformation occurs in the overall inkjet print head when the print head is returned to room temperature after the adhesive bonding process. The plates in the inkjet print head are formed of materials that have good resistance to the corrosion of ink, thereby increasing the life of the inkjet print head.
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