Scroll compressor assembly, manufacturing method thereof and scroll compressor

Abstract

The invention relates to a scroll compressor assembly. The scroll compressor assembly comprises a movable scroll part and a static scroll part, wherein the movable scroll part comprises a first main body; the static scroll part comprises a second main body; the surface, opposite to the second main body, on the first main body is defined as a first surface; the surface, opposite to the first main body, on the second main body is defined as a second surface; ceramic layers are formed on the first surface and / or the second surface through micro-arc oxidation treatment, so that service wear of the movable scroll part and the static scroll part is reduced; and the ceramic layers are good in abrasion resistance, high in hardness and low in surface roughness, so that the scroll compressor assembly can maintain high matching precision and stable working performances during the long-term utilization process. The invention further relates to a scroll compressor with the scroll compressor assembly and a manufacturing method of the scroll compressor assembly. The scroll compressor is high in reliability and long in service life. The manufacturing method is simple, efficient and energy-saving, and pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a scroll compressor assembly, a manufacturing method thereof, and a scroll compressor. Background technique [0002] As a new type, energy-saving, material-saving and low-noise volumetric compressor, the scroll compressor is more and more widely used. Its main principle is to use the relative orbital motion of the movable and static scroll to form a dead volume. Continuous change, to achieve the purpose of compressing gas. Among them, the material, machining quality and matching accuracy of the movable scroll and the fixed scroll directly determine the amount of gas compression and then affect the performance and reliability of the whole machine. [0003] Based on the demand for energy saving and emission reduction, more and more orbiting scrolls and static scrolls are made of cast or forged aluminum alloy. Generally speaking, in order to avoid adhesive wear when the same t...

AI Technical Summary

Problems solved by technology

Generally speaking, in order to avoid adhesive wear when the same type of material is used as a friction pair, at least one of the orbiting scroll and the static scroll needs to be surface modified, but there will be the following three problems: First, after surface modification A loose layer is formed on the surface of the part after aging, and the loose layer and another scroll disk will have a large friction coefficient during the initial run-in

However, it should be noted that the surface quality of hard anodic oxidation has a lot to do with the chemical composition of materials, microstructure distribution, molding process, machining process, heat treatment state, etc. The accuracy of reaction conditions is high, and the conditions for smaller Changes may lead to deterioration of the surface quality of hard anodic oxide, which cannot meet the reliability test requirements, and the roughness of the hard anodized film layer is 1-2 grades lower than that of the machined state. The dynamic and static scrolls are high-precision matching parts. In particular, the high roughness of the scroll tooth top and the base plate will affect the gas compression in the compression chamber, which will affect the overall performance of the compressor

Although the surface quality of the anodized film is slightly better, the low hardness of the anodized film cannot be changed, which cannot meet the long-term wear resistance requirements of the compressor scroll

[0005] Chinese patent document CN1212332A carries out Ni-P-B surface treatment on the surface of the aluminum-based orbiting scroll, although the cross-sectional hardness of the coating is high, but this coating is attached to the outside of the substrate, although it has a certain adhesion to the substrate, it is still It is easier to fall off, and the flake coating that falls off will affect the performance and reliability of the compressor as impurities

[0006] At the same time, the above surface treatment methods for the compressor orbiting scroll or fixed scroll all require or partially require one or more operations such as pickling and alkali washing, resulting in cumbersome treatment steps, energy consumption and sewage discharge during the treatment process. Larger, does not conform to the environmental protection concept of energy saving and emission reduction

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