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Method for coating insulating self-lubricating coatings on surfaces of rubber products

A technology for self-lubricating coatings and rubber products, which is applied to devices, coatings, and pre-treated surfaces that apply liquid to surfaces. Good adhesion and other problems, to achieve the effect of good coating adhesion, good high temperature blocking resistance, and safe operation

Inactive Publication Date: 2014-04-02
南京金三力高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Most of the coating agents used on the surface of rubber products in the prior art are liquid, and the liquid coating agent has a certain viscosity and poor dispersion, and is easy to adhere to pollutants and some small particles, which brings risks to the seal. At the same time, the coating time is long, and the drying or curing process is required after coating. The invention provides a method for coating the surface of rubber products with an insulating self-lubricating coating. The coating does not need curing and drying treatment, and the production continuity is good. , energy efficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The method for coating an insulating self-lubricating coating on the surface of a rubber product of this embodiment includes the following steps:

[0035] (1) Feeding: Put the rubber products into the drum, the volume of the drum is 20L, and the volume of the rubber products does not exceed 3 / 4 of the drum volume. The wall of the drum is a mesh structure, and the mesh is smaller than the outer diameter of the rubber product to ensure that the rubber product does not fall from the drum, and the drum with the rubber product is placed in a closed box;

[0036] Put the roller with rubber products into the closed box.

[0037] (2) Coating: Use a fan to blow molybdenum disulfide powder in a closed box. The fan's wind speed is 4 m / s to suspend the molybdenum disulfide particles in the air. The drum is rotated. The rotation speed of the drum is 20 rpm. So as to make the molybdenum disulfide powder evenly adhere to the surface of the rubber product, take out the rubber product after 3...

Embodiment 2

[0044] The method for coating an insulating self-lubricating coating on the surface of a rubber product of this embodiment includes the following steps:

[0045] (1) Feeding: Put the rubber product into the drum, the volume of the drum is 30L, and the volume of the rubber product does not exceed 3 / 4 of the volume of the drum. The wall of the drum is a mesh structure, and the mesh is smaller than the outer diameter of the rubber product to ensure that the rubber product does not fall from the drum, and the drum with the rubber product is placed in a closed box;

[0046] (2) Coating: Use a fan to blow the molybdenum disulfide powder in a closed box. The fan's wind speed is 5 m / s to suspend the molybdenum disulfide particles in the air. The drum is rotated. The rotation speed of the drum is 30 rpm. To make the molybdenum disulfide powder adhere to the surface of the rubber product evenly, take out the rubber product in 4 minutes;

[0047] (3) Polishing: Put the coated rubber products a...

Embodiment 3

[0053] The method for coating an insulating self-lubricating coating on the surface of a rubber product of this embodiment includes the following steps:

[0054] (1) Feeding: Put the rubber product into the drum, the drum volume is 40L, and the volume of the rubber product does not exceed 3 / 4 of the drum volume. The wall of the drum is a mesh structure, and the mesh is smaller than the outer diameter of the rubber product to ensure that the rubber product does not fall from the drum, and the drum with the rubber product is placed in a closed box;

[0055] (2) Coating: Use a fan to blow molybdenum disulfide powder in a closed box. The wind speed of the fan is 4.5 m / s to suspend the molybdenum disulfide particles in the air. The drum is rotated. The rotation speed of the drum is 25 rpm. So as to make the molybdenum disulfide powder evenly adhere to the surface of the rubber product, take out the rubber product in 3.5 minutes;

[0056] (3) Polishing: Put the coated rubber products and ...

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PUM

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Abstract

The invention discloses a method for coating insulating self-lubricating coatings on surfaces of rubber products, and belongs to the field of treatment on surfaces of rubber products. The method comprises the following steps of (1), feeding: charging a rubber product in a drum under the conditions that the size of the rubber product does not exceed 3 / 4 of the volume of the drum, a wall of the drum has a net-shaped structure and sizes of meshes of the wall of the drum are smaller than the outer diameter of the rubber product, and placing the drum with the rubber product in a closed box; (2) coating: blowing molybdic sulfide powder in the closed box by using a fan, enabling molybdic sulfide particles to suspend in air, and rotating the drum so that the molybdic sulfide powder is uniformly adhered to the surface of the rubber product; and (3) polishing: taking out the coated rubber product and drying pellet particles, simultaneously placing the coated rubber product and the drying pellet particles in the dry drum, rotating the drum, and enabling the pellet particles to rub with the surface of the rubber product so that a molybdic sulfide coating is uniformly adhered to the surface of the rubber product. By using the method, the coating is not required to be solidified or dried, and production continuity is high. Moreover, the method is energy-saving and efficient.

Description

Technical field [0001] The invention belongs to the field of surface treatment of rubber products, and particularly relates to a coating method for coating an insulating self-lubricating coating on the surface of a rubber product. Background technique [0002] At present, in order to reduce the friction coefficient of the rubber surface and improve the wear resistance and anti-blocking performance of the rubber, the rubber surface will be coated with a tetrafluoroethylene coating, which can reduce the static and dynamic friction coefficients of the rubber from 0.4 and 0.5 to 0.7, respectively. 0.1 and 0.16~0.18. This has important practical significance for long-term static and intermittently started rubber parts. However, the coating process of the tetrafluoroethylene coating is complicated and the production cost is high. Moreover, when the seal is stretched or compressed, the tetrafluoroethylene The coating is easy to peel off. [0003] In the prior art, most of the tetrafluor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/02B05D7/24B05D3/12
Inventor 程万福杜爱丽袁建兰魏二楼
Owner 南京金三力高分子科技有限公司