Piezoelectric texture ceramic injection forming machine

Abstract

The invention discloses a piezoelectric texture ceramic injection forming machine. The piezoelectric texture ceramic injection forming machine comprises a material barrel and a screw arranged in an inner cavity of the material barrel. The tail end of the screw stretches out of one end of the material barrel and is connected with a hydraulic drive device providing power, the other end of the material barrel is provided with a nozzle communicating with the inner cavity of the material barrel, and an outlet of the nozzle is connected with a die. The material barrel is further provided with a hopper communicating with the inner cavity and electric field generation devices symmetrically arranged on the two sides of the material barrel and used for generating electric fields to orient piezoelectric ceramic grains, the grains flow into the material barrel through the hopper and are pushed by the screw to flow through an external electric field to be injected into the die through the nozzle, operation is convenient, the technology is simple, feasibility is high, and the requirement for multiple products complex in shape is met.

Description

technical field [0001] The invention belongs to the field of ceramic injection, in particular to a piezoelectric texture ceramic injection molding machine. Background technique [0002] As the most widely used advanced electronic material among functional ceramics, piezoelectric ceramics occupy a very important position in the fields of information detection, conversion, processing and storage technology. In traditional piezoelectric ferroelectric ceramics, lead oxide (or trilead tetroxide) accounts for about 70% of the total mass of raw materials. Lead-containing piezoelectric ceramics will cause great damage to the environment and human health in the process of preparation, use and disposal. Therefore, it is of great practical significance to develop piezoelectric ferroelectric ceramics that are compatible with non-lead-based environments. [0003] Although scholars at home and abroad have carried out a lot of research on lead-free piezoelectric ceramics and achieved ini...

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Problems solved by technology

[0005] In order to solve the problem that the existing equipment cannot meet the requirements for preparing high-performance piezoelectric textured ceramics, the purpose of the present invention is to provide an injection molding equipment for piezoelectric textured ceramics, which is easy to operate, simple in process and strong in implementability , to meet the requirements of various complex shape products

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