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Aluminum silicon alloy for air conditioner compressor cylinder body and preparation method thereof

An air-conditioning compressor, aluminum-silicon alloy technology, applied in mechanical equipment, machinery/engine, liquid variable capacity machinery, etc., can solve the problem of large engine power consumption, large no-load torque of the compressor, and large spatial distribution differences problem, to achieve the effect of reducing hole defects, good quality and good flow performance

Active Publication Date: 2016-08-17
江苏昊科汽车空调有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cylinder block is an important part of the air-conditioning compressor. The existing air-conditioning compressor cylinder has many defects: first, it is usually an iron core cylinder, which has a large dead weight and is inconvenient to use; Iron piston rings are required, so the coefficient of friction is large; third, the no-load torque of the compressor is large due to the high friction coefficient between the piston and the cylinder hole; Very big
However, the existing aluminum-silicon alloy materials usually include aluminum, silicon, magnesium, iron, copper, zinc and other components. Due to the different content of each element in the alloy, the spatial distribution of each element in the alloy is quite different, resulting in the comprehensive performance of each alloy. different, especially in mechanical properties
In addition, the hardness of silicon-aluminum alloy is poorer than that of iron materials. The inclined wheel inside the air-conditioning compressor rotates at high speed, and the conventional iron cylinder works in a harsh environment. Therefore, the air-conditioning compressor cylinder does not use silicon-aluminum alloy as the cylinder body. Material

Method used

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  • Aluminum silicon alloy for air conditioner compressor cylinder body and preparation method thereof
  • Aluminum silicon alloy for air conditioner compressor cylinder body and preparation method thereof
  • Aluminum silicon alloy for air conditioner compressor cylinder body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Aluminum-silicon alloy for air-conditioning compressor cylinder, including the following components in weight percentage: Si 3.0%, Cu 0.16%, Mg 1.16%, Mn 0.43%, Ti 0.08%, Sr 0.18%, Zr 0.28%, Cr 0.23 %, Fe 0.54%, B 0.46%, V 0.54%, Zn 0.31%, Re 0.18%, Sn 0.42%, Pb 0.68%, Be 0.25%, Sc 0.18%, Li 0.66%, Ni 0.52%, La 0.01%, The rest is aluminum, and the sum of the mass percentages of each component is 100%.

[0028] The above-mentioned preparation method of the aluminum-silicon alloy used for the cylinder block of the air-conditioning compressor comprises the following steps:

[0029] (1) Select materials according to the weight of each element of the aluminum-silicon alloy to be prepared, and control the content of harmful elements in the raw materials at the same time, wherein: S content≤0.008%, P content≤0.025%; the raw materials are smelted in a melting furnace at 820°C, get smelting liquid;

[0030] (2) Spray the refining agent powder into the smelting furnace with arg...

Embodiment 2

[0033] Aluminum-silicon alloy for air-conditioning compressor cylinder, including the following components in weight percentage: Si 5.0%, Cu 0.18%, Mg 1.18%, Mn 0.41%, Ti 0.06%, Sr 0.16%, Zr 0.26%, Cr 0.21 %, Fe 0.52%, B 0.50%, V 0.56%, Zn 0.35%, Re 0.15%, Sn 0.38%, Pb 0.66%, Be 0.23%, Sc 0.16%, Li 0.64%, Ni 0.54%, La 0.03%, The rest is aluminum, and the sum of the mass percentages of each component is 100%.

[0034] The above-mentioned preparation method of the aluminum-silicon alloy used for the cylinder block of the air-conditioning compressor comprises the following steps:

[0035] (1) Select materials according to the weight of each element of the aluminum-silicon alloy to be prepared, and control the content of harmful elements in the raw materials at the same time, wherein: S content ≤ 0.008%, P content ≤ 0.025%; the raw materials are smelted in a melting furnace at 810 ° C, get smelting liquid;

[0036] (2) Spray the refining agent powder into the smelting furnace wi...

Embodiment 3

[0039] Aluminum-silicon alloy for air-conditioning compressor cylinder, including the following components in weight percentage: Si 3.8%, Cu 0.16%, Mg 1.16%, Mn 0.43%, Ti 0.08%, Sr 0.18%, Zr 0.28%, Cr 0.23 %, Fe 0.54%, B 0.46%, V 0.54%, Zn 0.32%, Re 0.18%, Sn 0.42%, Pb 0.68%, Be 0.25%, Sc 0.18%, Li 0.66%, Ni 0.52%, La 0.01%, The rest is aluminum, and the sum of the mass percentages of each component is 100%.

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Abstract

The invention provides an aluminum silicon alloy for an air conditioner compressor cylinder body; the aluminum silicon alloy includes the following components by the weight percentage: Si, Cu, Mg, Mn, Ti, Sr, Zr, Cr, Fe, B, V, Zn, Re, Sn, Pb, Be, Sc, Li, Ni, La, and the balance aluminum, wherein the sum of the mass percentages of the components is 100%. The aluminum silicon alloy has the advantages of light weight, good quality, high strength, high plasticity, high elongation rate, good flow performance, easy mold release in the production of die-casting parts, simple preparation process and relatively low cost.

Description

technical field [0001] The invention belongs to the field of metal materials, and particularly relates to an aluminum-silicon alloy used for a cylinder body of an air-conditioning compressor, and also relates to a preparation method of the aluminum-silicon alloy. Background technique [0002] With the development of the automobile manufacturing industry, the research on automobile air conditioning technology is getting faster and faster. The car air-conditioning compressor is the core component. The car air-conditioning compressor usually uses a swash plate to rotate the piston for compression. The swash plate rotates at a high speed up to 3000 rpm. Good venting and sealing of the valve plate assembly is required. The cylinder block is an important part of the air-conditioning compressor. The existing air-conditioning compressor cylinder has many defects: first, it is usually an iron core cylinder, which has a large dead weight and is inconvenient to use; Iron piston rings...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02F04B39/12
CPCC22C1/026C22C21/02F04B39/122
Inventor 曹靖
Owner 江苏昊科汽车空调有限公司
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