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Method for improving density of ultrathin piezoelectric ceramic piece
The invention discloses a method for improving density of an ultrathin piezoelectric ceramic piece, which belongs to a preparation method of piezoelectric ceramic pieces. The invention discloses a preparation method of the piezoelectric ceramic piece, and aims to provide the preparation method of the piezoelectric ceramic piece which can meet the requirement of large-scale batch production and improve the product quality. According to the technical scheme, the method comprises the steps that piezoelectric ceramic powder, an adhesive, a defoaming agent, a dispersing agent, a plasticizer, ethylalcohol and deionized water are mixed and subjected to ball milling, and slurry is obtained; bubbles in the slurry are removed, and then a film strip with a thickness of 0.02-0.1 mm is formed throughtape casting; finish rolling the cast film strip is subjected to finish rollingto reach the required thickness, and the reduction amount of the thickness of each time of finish rolling is 0.005-0.02 mm; and stamping is carried out on the finish-rolled film strip into a film sheet, and then steps of discharging glue and sintering are carried out. The density of the piezoelectric ceramic piece finished product prepared by the method can reach 98% or above of the theoretical density.
本发明公开了一种提高超薄压电陶瓷片致密度的方法，属于压电陶瓷片的制备方法；旨在提供一种既能满足大规模批量化生产的需求、又可提高产品质量的压电陶瓷片的制备方法。本发明方法的技术方案是：将压电陶瓷粉体、粘合剂、消泡剂、分散剂、增塑剂、乙醇、去离子水混合，球磨，得浆料；去除浆料中的气泡，然后流延成0.02‑0.1㎜厚的膜带；精轧所述流延膜带至所需厚度，保证每次精轧的厚度减少量为0.005‑0.02㎜；将精轧后的膜带冲压成膜片，然后排胶、烧结。采用本发明方法制备的压电陶瓷片成品，其密度可达到理论密度的98%以上。
Method for improving density of ultrathin piezoelectric ceramic piece
The invention discloses a method for improving density of an ultrathin piezoelectric ceramic piece, which belongs to a preparation method of piezoelectric ceramic pieces. The invention discloses a preparation method of the piezoelectric ceramic piece, and aims to provide the preparation method of the piezoelectric ceramic piece which can meet the requirement of large-scale batch production and improve the product quality. According to the technical scheme, the method comprises the steps that piezoelectric ceramic powder, an adhesive, a defoaming agent, a dispersing agent, a plasticizer, ethylalcohol and deionized water are mixed and subjected to ball milling, and slurry is obtained; bubbles in the slurry are removed, and then a film strip with a thickness of 0.02-0.1 mm is formed throughtape casting; finish rolling the cast film strip is subjected to finish rollingto reach the required thickness, and the reduction amount of the thickness of each time of finish rolling is 0.005-0.02 mm; and stamping is carried out on the finish-rolled film strip into a film sheet, and then steps of discharging glue and sintering are carried out. The density of the piezoelectric ceramic piece finished product prepared by the method can reach 98% or above of the theoretical density.
本发明公开了一种提高超薄压电陶瓷片致密度的方法，属于压电陶瓷片的制备方法；旨在提供一种既能满足大规模批量化生产的需求、又可提高产品质量的压电陶瓷片的制备方法。本发明方法的技术方案是：将压电陶瓷粉体、粘合剂、消泡剂、分散剂、增塑剂、乙醇、去离子水混合，球磨，得浆料；去除浆料中的气泡，然后流延成0.02‑0.1㎜厚的膜带；精轧所述流延膜带至所需厚度，保证每次精轧的厚度减少量为0.005‑0.02㎜；将精轧后的膜带冲压成膜片，然后排胶、烧结。采用本发明方法制备的压电陶瓷片成品，其密度可达到理论密度的98%以上。
Method for improving density of ultrathin piezoelectric ceramic piece
提高超薄压电陶瓷片致密度的方法
CHU TAO (Autor:in) / ZHANG TIANCAI (Autor:in) / ZHANG JING (Autor:in) / CHEN YU (Autor:in) / LIU CHANGLIU (Autor:in) / ZHANG ZHENXUAN (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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