Swash plate of automobile air-condition compressor and production method of swash plate

Abstract

The invention discloses a swash plate of an automobile air-condition compressor. The swash plate is prepared from an aluminium alloy comprising the following components in percentage by weight: 13-15% of Si, 4-5% of Cu, 0.2-0.3% of Mg, 0.8-1.5% of Ni, 0-0.1% of Mn, 0-0.5% of Fe, 0-0.1% of Zn, 0-0.2% of Ti, 0.1-0.3% of C, 0.1-0.3% of RE and the balance of Al. The invention further provides a production method of the swash plate of the automobile air-condition compressor. According to the production method provided by the invention, the high-temperature strength and the high-temperature hardness of the swash plate are improved, the cutting properties and the plasticity are improved, and low-cost production is realized by choosing and controlling elements in the aluminium alloy for the swash plate, and then replacing casting by forging, optimizing the pre-treatment and the post-treatment of the forging, and optimizing process parameters during the various treatment processes.

Description

technical field [0001] The invention relates to the technical field of the automobile industry, in particular to an automobile air-conditioning compressor swash plate and a production method thereof. Background technique [0002] With the continuous improvement of people's living standards, the demand for automobiles is increasing, and the requirements for automobile performance are also getting higher and higher, which leads to the rapid development of the domestic automobile industry and the continuous improvement of the localization of auto parts. [0003] At present, the two-way swash plate type automotive air-conditioning compressor mainly includes: a body, a cylinder, a piston, a transmission shaft, a swash plate fixed on the transmission shaft, and a connecting device between the swash plate and the piston. In the swash plate compressor, the swash plate is installed obliquely on a transmission shaft, and the swash plate and the piston are connected through sliding sho...

AI Technical Summary

Problems solved by technology

At present, the existing aluminum alloy swash plate is generally made of A390 hypereutectic aluminum-silicon alloy material. Although its room temperature strength and room temperature hardness meet the application requirements, its high temperature strength and high temperature hardness are poor, resulting in a low service life of the swash plate.

[0005] At present, the production process of the swash plate is mainly gravity casting, which has the following disadvantages: the structure density is low, which makes the swash plate easy to wear during work, the overall strength is not high, and it is easy to deform; The internal quality of the disc is poor, prone to breakage, jamming, etc., which will cause damage to the compressor; the swash plate has insufficient dimensional accuracy and poor dimensional uniformity

The use of die-forged A390 aluminum alloy materials to produce swashplates mainly has the following disadvantages: 1. Most of the domestic A390 aluminum alloy raw materials are imported from abroad, resulting in high production costs for swashplates; 2. Due to the high silicon content of A390 aluminum alloys, aluminum The high hardness of the alloy leads to poor cutting performance of the swash plate, serious tool wear, and difficult machining; 3. The plasticity of the A390 aluminum alloy is poor, and the swash plate blank produced by die forging is prone to defects such as cracks

Images