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Slip sheet of refrigeration compressor and manufacturing method thereof

A technology for refrigeration compressors and manufacturing methods, applied to mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of low yield, difficult processing, high carbon content, etc., and achieve high yield rate, wide range of material selection, Good processing performance

Active Publication Date: 2010-01-20
NINGBO YONGWEI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the steel required by the above method is limited to high-speed tool steel and high-carbon stainless steel. These materials are not easy to obtain and the price is high, which limits the further application of the slide. Moreover, the carbon content is too high and the hardness is too high, which makes processing difficult. Low yield

Method used

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  • Slip sheet of refrigeration compressor and manufacturing method thereof
  • Slip sheet of refrigeration compressor and manufacturing method thereof
  • Slip sheet of refrigeration compressor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Steel slabs consisting of the following chemical composition (mass)%

[0043] C 0.32-0.40 Si 0.17-0.37 Mn 0.40-0.70 Cr 1.00-1.30 Mo 0.20-0.30Al 0.70-1.10 V 0.1-0.2 Fe balance

[0044] First, it is hot-rolled into a flat strip, and then cold-drawn according to the width, thickness, and R arc size of the slide, and then cut out the shape required by the slide with a band saw, and then milling out the grooves on the slide with a milling cutter. After the groove is quenched and tempered at 1050°C by conventional vacuum heat treatment, the large flat end face is ground first with a grinding machine, then the R surface is shaped and ground, and then the end face is vertically ground until it meets the surface requirements, such as figure 1 , figure 2 , image 3 In the form shown, gas nitriding is performed. The gas nitriding process is as follows: the furnace temperature is 500-550°C, nitrogen and ammonia are charged in stages, the ammonia decomposition rate is 10-60%, an...

Embodiment 2

[0049] Steel slabs consisting of the following chemical composition (mass)%

[0050] C 0.35-0.42 Si 0.20-0.45 Mn 0.30-0.60 Cr 1.35-1.65 Mo 0.15-0.25Al 0.70-1.10 Fe balance

[0051] Except nitriding treatment, all the other are with embodiment 1.

[0052] The nitriding treatment is a salt bath nitriding treatment: the slide is placed in a molten salt synthesized from various carbonates and urea, and the temperature is kept at 500-600°C for about 1-4 hours; then Cool with an oxidizing liquid salt bath. After nitriding, the slides were surface ground, and the measurement results of the obtained slides are shown in Table 1.

Embodiment 3

[0054] Steel slabs consisting of the following chemical composition (mass)%

[0055]C 0.37-0.44 Si 0.17-0.37 Mn 0.90-1.20 Cr 0.90-1.20 Mo 0.20-0.30Al 0.60-1.00 Fe balance.

[0056] The rest of the conditions are the same as those in step 1, and the obtained slides have the measurement results shown in Table 1.

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Abstract

The invention relates to a slip sheet of a refrigeration compressor, which is manufactured by the following chemical components in percentage by mass: 0.32-0.54% of C, 0.17-0.45% of Si, 0.30-1.20% of Mn, 0.80-1.65% of Cr, 0.15-0.30% of Mo, 0.60-1.10 Al, 0-0.2% of V, and the balance of Fe. The invention has narrower material selection range because prior slip sheet materials are all limited to high-speed tool steel and high-carbon stainless steel; the invention manufactures the slip sheet completely meeting the requirement of the slip sheet of a high-quality compressor on shape, surface rigidity and rigidity distribution through reasonable material selection, and has wide material selection range, easily obtained material and low cost; in addition, because the content of carbon is further reduced, the processing property of the slip sheet is better, and the good quality rate of products is enhanced.

Description

technical field [0001] The invention relates to a compressor component and a manufacturing method thereof, in particular to a compressor sliding vane and a manufacturing method thereof. Background technique [0002] Rotary refrigeration 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. Working under the conditions of high temperature, high pressure, and high-speed impact load of the cold medium, the contact part between the slide plate and the piston is easy to wear, and requires good sliding performance, fatigue resistance and corrosion resistance. The common requirements are shown in Table 1. [0003] The sliding vane is generally made of special steel. The hardness, wear resistance and corrosion resistance of unprocessed steel are difficult to meet the working requiremen...

Claims

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Application Information

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IPC IPC(8): F04C29/00
Inventor 庄希平夏祖伟苏子法
Owner NINGBO YONGWEI GROUP
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