Method of coating fluorocarbon resin and sliding part and gas compressor using said method

A technology of fluorocarbon resin and sliding parts, which is applied in the field of gas compressors and can solve the problems of large amplitude of load change cycle, coating peeling and damage, etc.

Inactive Publication Date: 2003-09-17
CALSONIC COMPRESSOR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This residual hard blasting material is then placed into the sliding part of the product or the like, which may damage and eventually dry out the coating or metal parts of the sliding part or the like, rendering it inoperable
[0014] The existing method of coating a layer of fluorocarbon resin on the base material made of aluminum alloy or similar material as mentioned above is prone to peeling off of the coating from the base material after long-term use
In particular, this spalling of the coating can easily occur when the maximum load is high, the amplitude of the load change cycle is large, or the lubrication conditions are poor at start-up

Method used

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  • Method of coating fluorocarbon resin and sliding part and gas compressor using said method
  • Method of coating fluorocarbon resin and sliding part and gas compressor using said method
  • Method of coating fluorocarbon resin and sliding part and gas compressor using said method

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Embodiment Construction

[0048] Below, combined with Figures 1 to 14 Examples of the present invention will be described.

[0049] first embodiment

[0050] now refer to figure 1 , which shows the process flow of the first embodiment of the method of coating fluorocarbon resin according to the present invention.

[0051] exist figure 1 In this method, the fluorocarbon resin is coated on the surface of a base material made of aluminum alloy, which can be used as a side block of a vehicle gas compressor of an automobile air conditioner.

[0052] First, the entire surface of the aluminum alloy base material is cleaned (first cleaning, 101). Then, the surface of the base material, which becomes the sliding surface, is shot peened using sodium bicarbonate NaHCO3 as the blasting material, followed by roughening and cleaning of the shot peened surface of the base material (102). Sodium bicarbonate is a blasting material that has a lower hardness than aluminum oxide. However, the advantage of using s...

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Abstract

A method of coating a fluorocarbon resin comprising roughening the surface to be coated by shot blasting with a water-soluble blasting material or an evaporable blasting material or by laser or plasma irradiation. This method provides a high-quality fluorocarbon resin having good contact and adhesion properties without peeling off even when performing a sliding motion under severe load conditions. In addition, the blasting material used in the coating base treatment does not remain in the base material made of aluminum alloy or the like in the vicinity of the coating. In this way, there is no possibility of residual blasting material damaging the coating or the like.

Description

technical field [0001] The present invention relates to a method of coating a fluorocarbon resin, a sliding member coated with a fluorocarbon resin using the method, and a gas compressor having such a resin-coated sliding member. Background technique [0002] In general, the respective sliding surfaces of sliding members that slide against each other are required to have wear resistance and seizure resistance. For example, for the vehicle gas compressor of a car air conditioner, it is usually necessary to be able to significantly reduce its weight as a structural component. Therefore, in this case, the slider can be made of a lightweight material such as aluminum alloy. [0003] Although the use of aluminum alloys and similar materials reduces weight, when sliding parts slide on each other's sliding surfaces, the wear resistance and seizure resistance of these surfaces are poor. Therefore, there may arise a case where it is necessary to coat a fluorocarbon resin such as po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B7/00B05D3/02B05D3/06B05D3/12B05D3/14B05D5/08B05D7/24B08B3/04B23K26/352B24C11/00F01C21/10F02B77/02F04B39/00F04C18/344F04C29/00
CPCB05D3/0254B05D3/06B05D3/12B05D3/142B05D5/083B05D2202/20F01C21/106F02B77/02F04C18/3446F04C2230/91F05C2225/04F05C2253/12Y02T10/12
Inventor 高桥彻渡壁利夫松野章
Owner CALSONIC COMPRESSOR INC
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