Laser cleaning method for tire moulds

A laser cleaning and tire mold technology, applied in the field of laser cleaning, can solve the problems of limited cleanliness, high labor intensity, noise pollution by dry ice cleaning, etc., to achieve the effect of not losing mold life, no noise pollution, and low labor intensity

Inactive Publication Date: 2015-02-25
BEIJING HEZHONG JIANYE ELECTROMECHANICAL TECH
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Problems solved by technology

[0009] The above cleaning methods are widely used in the cleaning market in my country, but their application is greatly restricted under the requirements of environmental protection and high precision.
Chemical cleaning methods are easy to cause environmental pollution, and the degree of cleanliness obtained is limited. Especially when the composition of the attachment is complex, it is necessary to use a variety of cleaning agents for repeated cleaning to meet the requirements of surface cleanliness.
The size of the cleaning tank of the ultrasonic cleaning method limits the scope and complexity of the mold, and it is very difficult to dry the mold after cleaning. The dry ice cleaning method also has the disadvantages of noise pollution and high labor intensity.

Method used

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  • Laser cleaning method for tire moulds

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[0019] specific implementation plan

[0020] According to accompanying drawing, tire mold laser cleaning method of the present invention comprises the following steps:

[0021] 1. Mold preparation, determine the mold material to be cleaned, the general tire mold material includes carbon steel, aluminum.

[0022] 2. Set the laser energy density according to the material of the mold. The set value of the energy density should meet the energy density value less than the damage threshold of the mold surface, and slightly greater than the energy density value of the damage threshold of the attachment.

[0023] 3. Using the above-mentioned laser energy density value, excite the laser, and radiate the surface of the mold in a scanning manner. The attachment absorbs the laser energy and instantly expands or evaporates. The resultant force of these effects is greater than the adsorption force of the mold on the attachment, so that the attachment is detached.

[0024] 4. After laser c...

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Abstract

The invention discloses a laser cleaning method for tire moulds and aims to achieve safe, environment-friendly and efficient cleaning of the tire moulds. According to the technical scheme, the laser cleaning method is implemented by large difference between mould surfaces and attachments in absorption coefficient of certain wavelength laser energy. The laser energy radiating to the mould surfaces are mostly absorbed by the attachments on the mould surfaces, the attachments are evaporated or swelled instantly after being heated or vaporized and are driven to separate from the mould surfaces by vapor flow formed on the surfaces. The mould surfaces are not damaged.

Description

technical field [0001] The invention belongs to a laser cleaning method in the technical field of tire mold cleaning. Background technique [0002] 1. Tire vulcanization requires the use of molds, which are inevitably polluted by the comprehensive deposition of rubber, compounding agents and release agents during use (the main pollutants are sulfides, inorganic oxides, silicone oil and carbon black, etc.), Long-term use will cause mold pollution and fouling, which will affect the quality of tires. Therefore, the mold must be cleaned frequently to ensure the cleanliness of its surface, so as to ensure the quality of the tire and the life of the mold. [0003] 2. There are the following methods for cleaning tire molds in the industry: [0004] (1) Dry ice blasting method: liquid carbon dioxide is made into dry ice spherical particles through a dry ice preparation mechanism, and then sprayed onto the mold surface at high speed, and the purpose of removing attachments is achie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B7/00
CPCB08B7/0042
Inventor 不公告发明人
Owner BEIJING HEZHONG JIANYE ELECTROMECHANICAL TECH
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