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Method for improving laser transmission welding strength

A technology of laser transmission welding and laser transmitter, which is applied in the field of improving the strength of laser transmission welding and can solve problems such as poor compatibility

Inactive Publication Date: 2017-01-11
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the problems existing in laser transmission welding of dissimilar polymers in the prior art, for the poor compatibility between the upper workpiece and the lower workpiece, by using a kind of energy that has better compatibility with the upper and lower workpieces thin film material to improve the laser transmission welding strength between poorly compatible dissimilar polymers

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

[0028] The strength of laser transmission welding between dissimilar polymers with poor compatibility is improved by adopting a film material with better compatibility with the upper workpiece and the lower workpiece.

[0029] A method for improving laser transmission welding strength, comprising the steps of:

[0030] S1. Ultrasonic cleaning the lower workpiece 2, film 3 and upper workpiece 4 with ethanol to remove surface impurities, and then put them in a drying oven to dry for 6-24 hours;

[0031] S2. Place the lower workpiece 2, film 3 and upper workpiece 4 processed in step S1 on the base 1 in sequence from bottom to top, and then place the translucent glass 5 on the upper workpiece 4, and apply the translucent glass 5 Pressure 6, and then apply pressure to the upper workpiece 4, the film 3 and th...

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Abstract

The invention discloses a method for improving laser transmission welding strength, and belongs to the technical field of laser transmission welding. The method comprises a base, a lower workpiece, a film, an upper workpiece and a laser emitter; the lower workpiece is put on the base; the film is put on the lower workpiece; the upper workpiece is put on the film; the laser emitter is arranged above the upper workpiece; and the lower workpiece, the film and the upper workpiece are all polymer materials. The method uses the film material with better compatibility for two materials for improving the laser transmission welding strength between different polymers with weaker compatibility.

Description

technical field [0001] The invention belongs to the technical field of laser transmission welding, and in particular relates to a method for improving the strength of laser transmission welding. Background technique [0002] Plastic products have the advantages of light weight, high strength, low density, low cost, excellent elasticity, and corrosion resistance. Therefore, plastics are used more and more widely, especially thermoplastics. Most thermoplastic products are molded products. Affected by injection molding, extrusion processing technology and mold making, many plastic products with irregular shapes or complex structures are difficult to be injection molded at one time. Usually the most economical and effective method is Combining multiple simple injection molded parts, a variety of joining methods for thermoplastics have emerged. Traditional mechanical connection methods are not widely used due to the disadvantages of easy damage to components, weak connection and...

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Application Information

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IPC IPC(8): B29C65/16B29K67/00B29K33/00
CPCB29C66/8322B29C65/022B29C65/1635B29C65/1677B29C65/4815B29C65/5057B29C66/0222B29C66/1122B29C66/45B29C66/71B29C66/712B29C66/81267B29K2067/006B29K2033/12
Inventor 王霄仲雪娇刘会霞刘伟刘保光姜英杰
Owner JIANGSU UNIV
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