Low-alloy low-deformation compressor roller and manufacturing method thereof

Abstract

The invention discloses a casting formula of a low-alloy low-deformation compressor roller. The casting formula comprises the following components in parts by weight: 20-30 parts of scrap steel, 35-40 parts of foundry returns, 35-40 parts of scrap iron, 0.5-1 part of a carburant and 0.1-0.15 part of electrolytic nickel, wherein the nickel purity is gt; the content of the chromium alloy is 99.9%, and the purity of the chromium alloy is gt; the content of the molybdenum alloy is 99.9%, and the purity of the molybdenum alloy is gt; the content of the antimony ingot is 99.9%, and the purity of the antimony ingot is gt; the copper purity of the T1 # red copper is gt, and the copper purity of the T1 # red copper is gt; according to the roller produced by adopting the formula, the thermal deformation of the piston ring of the compressor is less than 0.005%, the small variation of the miniaturized piston ring in the working environment of 0-300 DEG C is ensured, the precision of a piston, a matched cylinder and the like is improved, the working efficiency is improved, the rated working power is reduced, and the purposes of energy conservation and consumption reduction of the compressor are achieved.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a new formulation of compressor rollers for refrigeration equipment. Background technique [0002] At present, the policy of low energy consumption and low emission in the manufacturing industry is promoted in China, and the pursuit of carbon neutrality is based on the purpose of reducing manufacturing energy consumption and low utilization rate of non-renewable resources. Follow the national policy to implement research on the production method of low-alloy compressor rollers , to reduce alloy usage and energy consumption. [0003] Nowadays, air-conditioning compressors are gradually miniaturized and miniaturized. Affected by the miniaturization of the compressor, the piston ring, a key component of the compressor, is also gradually miniaturized and miniaturized. During the miniaturization process, the deformation of the original piston gradually cannot meet the ...

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Problems solved by technology

[0003] Nowadays, air-conditioning compressors are gradually miniaturized and miniaturized. Affected by the miniaturization of compressors, the piston rings, which are key components of compressors, are also gradually miniaturized and miniaturized. During the miniaturization process, the deformation of the original piston gradually failed to meet the needs of the compressor. The high deformation caused the miniaturized piston ring to gradually heat up and expand during the working process, often causing jamming or excessive resistance, resulting in an increase in operating current and power consumption. Unable to meet the low energy consumption requirements of its compressors and air conditioners

[0004]There is no specific smelting and matching heat treatment process for low-deformation pistons in the industry, so it is necessary to develop a low-deformation piston ring with a specific composition. Under the premise of wear resistance and compactness, the deformation of the piston is less than 0.005% in the temperature range of 0-300 degrees

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