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 compone

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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