Processing method for surface coating

A processing method and surface coating technology, which can be used in devices for coating liquids on surfaces, surface pretreatment, metal processing equipment, etc., which can solve the problems of generating more waste gas and waste water, difficult demoulding of finished products, and lack of lubrication of molds. , to achieve the effect of reducing defective products, reducing surface temperature, and reducing the occurrence of static electricity

Inactive Publication Date: 2010-06-23
秦璇朋
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Problems solved by technology

[0004] Although the above-mentioned release agent and thimble oil can solve the problems that the finished product is difficult to release from the mold and the mold lacks lubrication, however, the coated release agent and thimble oil are easy to form oil stains and pollution on the surface of the injection mold and its accessories, so it is necessary to Additional use of other solvents and water-soluble detergents for cleaning, and therefore, will virtually generate more waste gas and waste water during the injection molding process, which cannot meet the needs of the industry in today's atmosphere of rising environmental awareness

Method used

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  • Processing method for surface coating
  • Processing method for surface coating

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Embodiment

[0026] In the embodiment of the present invention, the selected base material is a mold for continuous precision injection molding and its accessories, such as ejector pins, inserts, cores, bushings, punches, inserts, and forming and bending accessories. Such as figure 1As shown, the mold and its accessories are first subjected to the pretreatment steps of degreasing 101, cleaning 102, and drying 103, respectively, to remove oil or impurities attached to the surface of the mold and its accessories; and its accessories are placed at a temperature of 120°C to 250°C for surface processing 104, so that the capillary pores on the surface of the mold and its accessories can be gradually expanded; then, a treatment agent including nanoparticles is applied to the mold and its accessories The surface of the accessory is subjected to surface penetration processing 105, wherein the composition ratio of the treatment agent is between 10 to 40% by weight of titanium dioxide, 5 to 15% by we...

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Abstract

The invention relates to a processing method for surface coating, comprising the following steps: carrying out pretreatment step for base material; pre-heating the base material under a certain temperature to lead the pores on the surface of the base material to expand; applying treating agent on the surface of the base material to lead the treating agent to penetrate into the inner layer of the base material through the pores on the surface of the base material and further to form a coating layer from the inner layer to the outer layer of the base material; and carrying out curing process on the coating layer, therefore, the wear resistance and dimensional stability of the base material can be increased, the friction between the base material and other wear-resistant base material is reduced, the service life of the base material is prolonged and the efficiency of production is improved.

Description

technical field [0001] The invention relates to a processing method for surface coating, in particular to a processing method for coating the surface of a mold with a treatment agent including nano particles. Background technique [0002] Among many plastic molding technologies, injection molding has been widely used in the industry due to its advantages of high product structural integrity and large design freedom. However, when the pressure of injection molding in the process is too high, it will often cause the product to be oversaturated, and the plastic injected into the mold will be pressurized into the tiny pores on the surface of the mold, so during the demoulding process, the phenomenon of mold sticking will easily occur , causing the finished product to be stuck in the mold cavity, making it difficult to demould. In order to solve such problems, it is known to pre-coat a release agent on the surface of the injection mold before injection molding, so that the final...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/24B05D3/00B29C45/83B21D37/18
Inventor 秦璿朋
Owner 秦璇朋
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