Stirring and defoaming device for conductive silver paste

A technology of defoaming device and conductive silver paste, which is applied in the direction of foam dispersion/prevention, chemical instruments and methods, liquid degassing, etc. It can solve problems such as generation of defective products, air mixing, and impact on the quality of conductive silver paste products, and achieve reduction Air bubbles, guaranteed quality effect

Inactive Publication Date: 2020-03-31
江西华莲欣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductive silver paste must be mixed evenly during preparation, and air may be mixed in during the mixing process to form air bubbles, which will seriously affect the quality of the products made of conductive silver paste, resulting in defective or waste products

Method used

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  • Stirring and defoaming device for conductive silver paste
  • Stirring and defoaming device for conductive silver paste
  • Stirring and defoaming device for conductive silver paste

Examples

Experimental program
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Embodiment Construction

[0018] The present invention will be further described below with reference to the drawings and specific embodiments.

[0019] The present invention provides a stirring and defoaming device for conductive silver slurry, which comprises a mixing barrel 1, a stirring device 3, and a sealing cover 2. The sealing cover 2 and the mixing barrel 1 are connected by threaded connection, snap connection or bolt connection, A vacuum pump 5 is connected to the sealing cover 2, and the suction port of the vacuum pump 5 is connected to the air outlet 2.2 on the sealing cover 2 through the connecting pipe 5.1. The sealing cover 2 is provided with a motor 4, and the output shaft of the motor 4 is connected with a stirring device 3 , The stirring device 3 extends into the mixing barrel.

[0020] The stirring device 3 includes a first stirring shaft 3.1. The first stirring shaft 3.1 is driven to rotate by a motor 4. The motor 4 is arranged outside the sealing cover 2, and the driving shaft of the mo...

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PUM

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Abstract

The invention discloses a stirring and defoaming device for conductive silver paste. The device comprises a mixing barrel, a stirring device and a sealing cover, the sealing cover is connected with the mixing barrel, a vacuum pump is connected to the sealing cover, the air suction port of the vacuum pump is connected with an air outlet in the sealing cover through a connecting pipe, a motor is arranged on the sealing cover, the output shaft of the motor is connected with the stirring device, and the stirring device extends into the mixing barrel. The mixing barrel is used for containing metalsilver particles, base material resin, a solvent, auxiliaries and the like. Mixing and stirring are conducted by the stirring device, air in the mixing barrel can be pumped out through the sealing cover and the vacuum pump, a vacuum environment is formed, gas mixed into the silver paste during mixing is broken and exhausted due to air pressure changes, bubbles mixed into the silver paste are reduced, and the quality of the silver paste is guaranteed; and through the transmission between a first gear and a second gear, a second stirring rod is driven to stir the slurry together, so that the stirring efficiency is improved.

Description

Technical field [0001] The invention relates to the technical field of auxiliary equipment for preparing conductive silver paste, in particular to a stirring and defoaming device for conductive silver paste. Background technique [0002] Conductive silver paste is widely used in electronic industry fields such as computers, mobile phone keyboards, membrane switches, touch screens, smart cards, radio frequency identification, etc. The most widely used conductive silver pastes include: PET-based membrane switches and low temperature for flexible circuit boards Silver paste, low-temperature conductive silver paste for touch screens, paste for single-plate ceramic capacitors, silver pastes for varistors and thermistors, silver pastes for piezoelectric ceramics, and silver electrode pastes for carbon film potentiometers. Printed conductive silver paste is a low-temperature baking conductive silver paste specially designed for resistance and capacitive touch screen loop wires. It is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/02
CPCB01D19/0052B01D19/02
Inventor 尹新华
Owner 江西华莲欣科技有限公司
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