Method for manufacturing slip-sheet of compressor

A manufacturing method and compressor technology, which are applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of low yield, difficult processing, high hardness, etc., and achieve improved yield, wide material selection, and carbon content. reduced effect

Inactive Publication Date: 2007-07-25
庄希平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the steel required by the above method must meet the requirements of C0.95-1.20%, Cr16.0-18.0% (weight), these materials are not easy to obtain, the price...

Method used

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  • Method for manufacturing slip-sheet of compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Use steel 7Cr17 to cut out the required shape of the sliding piece by wire cutting, then mill out the groove on the sliding piece with a milling cutter, and then use a conventional vacuum heat treatment at 1050°C to quench and temper, and then use a grinder to grind the large plane end face , and then carry out the R surface forming grinding and then carry out the vertical grinding of the end face until the surface requirements are met, and then carry out the gas nitriding treatment in the form shown in Figure 1. Nitriding is carried out in a well-type controllable gas nitriding furnace. The amount of ammonium chloride added is 0.8kg / m3, and it is dried with 200 times of quartz sand. After nitriding at 560°C for 4 hours, it is cooled to 150°C with ammonia, and then the ammonia is stopped. Let cool to room temperature. The nitriding slides were ground again, and the surface was ground after nitriding. The results are shown in Table 1. It can be seen from Table 1 that it...

Embodiment 2

[0023] The steel is 9Cr18, and the rest are the same as in Example 1. The results are shown in Table 2.

[0024] The surface color of the slider is silver gray without any abnormalities, and there are no corrosion spots.

[0025] Table 1: Requirements of compressor vane and quality of finished vane

[0026]

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Abstract

This invention provides a method for producing slip sheets for compressors. The method comprises: (1) selecting appropriate stainless steel material containing C 0.95-1.20 wt. % and Cr 16.0-18.0 wt. %; (2) wire-cutting the stainless steel material according to the shape of slip sheets, and milling to form grooves; (3) performing vacuum heat-treatment; (4) grinding and polishing the six faces of each slip sheets; (5) infiltrating nitrogen into the slip sheets by using ammonia; (6) finely grinding the slip sheets until qualified. The method has such advantages as wide raw material range and low cost. The obtained slip sheets, due to a lower carbon content, have such advantages as high processability and high qualification rate.

Description

technical field [0001] The invention relates to a manufacturing method of a compressor component, in particular to a manufacturing method of a compressor sliding vane. Background technique [0002] Rotary air-conditioning compressors are widely used because of their high efficiency, compact structure, small size, and light weight. As an important component of the compressor, the sliding vane needs to be in close contact with the eccentric rolling piston of the compressor. Therefore, the relationship between the vane and the piston The contact part is extremely easy to wear and requires good sliding performance, fatigue resistance and corrosion resistance. The common requirements are shown in Table 1. Sliding vanes are generally made of steel. The hardness and wear resistance of ordinary steel are difficult to meet the working requirements of the compressor. Nitriding treatment, people have done a lot of research on this from the material selection to the molding of the slid...

Claims

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Application Information

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IPC IPC(8): C22C38/18F04C18/356F04C29/00
Inventor 苏子法庄希平
Owner 庄希平
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