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Slide block for rotary type compressor and manufacturing method thereof

A technology of a rotary compressor and a manufacturing method, which is applied in the field of compressors, can solve problems such as high raw material costs and complex manufacturing processes, and achieve the effects of reducing raw material costs, simple manufacturing processes, and low content of alloy elements

Active Publication Date: 2011-09-07
PANASONIC WANBAO GUANGZHOU COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of a large number of noble alloy elements, the cost of raw materials is high and the manufacturing process is complicated

Method used

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  • Slide block for rotary type compressor and manufacturing method thereof
  • Slide block for rotary type compressor and manufacturing method thereof
  • Slide block for rotary type compressor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) In this embodiment, the steel material with the chemical composition of GCr15 bearing steel is selected, which contains the following chemical compositions in terms of mass percentage: C: 0.95-1.05%, Si: 0.15-0.35%, Mn: 0.25-0.45%, Cr: 1.40-1.65 %, S: ≤0.025%, P: ≤0.025%, Ni: ≤0.30%, Mo: ≤0.10%, the balance is Fe and impurities that normally appear

[0037] (2) Carry out spheroidizing annealing treatment on the raw material before cold rolling, the annealing furnace temperature is 770±5°C, keep warm for 3hr, then slowly cool down to below 650°C with the furnace and leave the furnace for air cooling.

[0038] (3) Cold rolling is carried out according to the required precision of the slider width and height to obtain a flat plate;

[0039] (4) Cut the flat plate according to the length of the slider, and mill out the groove of the slider;

[0040] (5) Quenching, deep cooling and tempering are carried out sequentially on the cut slider.

[0041] ①Quenching treatment:...

Embodiment 2

[0057] (1) In this embodiment, the steel material with the chemical composition of GCr15SiMn bearing steel is selected, which contains the following chemical compositions in terms of mass percentage: C: 0.95-1.05%, Si: 0.45-0.75%, Mn: 0.95-1.25%, Cr: 1.40- 1.65%, S: ≤0.025%, P: ≤0.025%, Ni: ≤0.30%, Mo: ≤0.10%, and the balance is Fe and normally occurring impurities.

[0058] Steps (2)-(7) are the same as in Example 1, and a qualified slider for rotary compressors is obtained, which meets the current requirements for use of sliders for rotary compressors.

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Abstract

The invention discloses a slide block for a rotary type compressor and a manufacturing method thereof. The slide block which meets the requirement is manufactured by the following steps of: performing pretreatment on GCr15 or GCr15SiMn bearing steel serving as a material; performing cold rolling; cutting; performing heat treatment and dimension stability treatment, and the like. In the invention,the material is selected reasonably, and a proper heat treatment process is achieved, so that the material selection range of the slide block for the rotary type compressor is enlarged, the content of alloy elements of the material is low, the requirement on rare elements is reduced, loads to the environment are reduced, and the raw material cost of the slide block is reduced simultaneously; and a manufacturing process is simple, manufacturing cost is low, and the obtained slide block has high hardness, high toughness and high abrasion resistance and can meet the using requirement of the conventional rotary type compressor.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a slider for a rotary compressor and a preparation method thereof. technical background [0002] Rotary compressors are widely used due to their high efficiency, small size and light weight. [0003] The pump body of existing rotary compressor generally is made up of slide block 1, spring 2, piston 3, cylinder 4, crankshaft 5 and upper and lower bearing (as figure 1 , 2 ), as an important part of the compressor pump body - slider 1, under the driving force of spring 2, its tip R surface 11 is always in close contact with the outer cylindrical surface of high-speed eccentrically rotating piston 3 to form a friction pair, which is Line contact, the contact surface pressure is extremely high, and the friction pair is in a critical lubrication state with little oil for a long time, which makes the contact parts prone to wear. Therefore, for the selection of slider material, it is requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00C22C38/44C21D1/18C21D6/04
Inventor 龚沛周红涛
Owner PANASONIC WANBAO GUANGZHOU COMPRESSOR
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