Method for preparing multiple field sheet type ZnO voltage-sensitive resistor by water base casting process

A varistor, water-based casting technology, applied in the direction of varistor cores, varistors, resistors, etc., can solve the problem of undiscovered multilayer chip ZnO varistors, damage to human health, Deteriorating working conditions and other issues, to achieve the effect of increasing competitiveness, protecting the environment, and high nonlinear coefficient
CN1921032AInactive Publication Date: 2007-02-28SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
Publication Date
2007-02-28
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for using water-based extending method to prepare multilayer ZnO voltage-sensitive resistance. Wherein, it comprises: using water as solvent to prepare water-based extending slurry; mixing ZnO ceramic, adhesive, disperser, and deion water into water-based extending slurry, while the mass percentage of each component is Zno ceramic at 40-70wt%, adhesive at 3-20w%, disperser at 0.05-2wt%, and the left is deion water; then extending the slurry into ceramic film band; plating one layer of inner electrode; layering, and plating another inner electrode alternative with the last layer; repeating until designed layer number; cutting into plates, adhering and sintering. The invention can reduce cost and apply batch production. And the inventive product has small volume and low cost and applies surface mounting technique.
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Description

technical field

[0001] The invention relates to the preparation technology of a multilayer chip varistor, in particular to a method for preparing a multilayer chip ZnO varistor and the ZnO varistor by a water-based casting method. Background technique

[0002] Tape casting has been widely used in the molding process of ceramic materials since its appearance in 1945. Tape casting is to blow the prepared ball-milled ceramic slurry (that is, the suspension of powder, solvent, binder, dispersant, plasticizer and other additives) into the scraper mouth of the casting machine through gas, and the slurry passes through The process of leveling by self-weight on a rotating steel belt or polyester film (PET), then drying and peeling is an important process for preparing single-layer or multi-layer sheet materials, and is widely used in the production of multi-layer ceramic devices or substrates. , Such as: multilayer ceramic capacitor (MLCC, multilayer ceramic capacitor), multilayer ...

Claims

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