Alloy material for preparing vehicle air conditioner compressor connecting rod
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A technology for alloy materials and automotive air conditioners, which is applied in the field of alloy materials and can solve problems such as easy rust and parts failure.
Inactive Publication Date: 2019-06-21
LOUDI WENCHANG TECH
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Problems solved by technology
[0002] The connecting rod is an important moving part of the automobile air-conditioning compressor. It requires good wear resistance and physical properties. The parts are processed with high precision. Because the ordinary iron used has been used for a long time, it is easy to rust and cause the parts to fail.
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preparation example Construction
[0017] The preparation method of the above-mentioned alloy material includes the following steps: smelting-degassing-casting-extrusion-cutting-heat treatment-machining, wherein,
[0018] 1) Smelting > 800°C, after smelting is sufficient, slagging is performed, and after slagging, a phosphorus modifier is used for modification;
[0019] 2), degassing > 15 minutes, to ensure that the aluminum alloy melt is fully degassed;
[0020] 3) Casting: Hot top continuous casting, CD direct cooling, casting temperature > 780°C, speed > 30mm / min;
[0021] 4) Extrusion: Forward extrusion is used to extrude the casting rod blank into a connecting rod blank, the required extrusion temperature: 440°C-510°C, extrusion speed: 30-40 mm / s;
[0022] 5) Cutting: sawing the extruded connecting rod billet to length;
[0023] 6) Heat treatment adopts T7 process: solid solution at 490±5°C*8 hours, artificial overaging, 200±3°C*10 hours, transfer time <7s is required to improve the strength and hardness...
Embodiment
[0027] Example 2, the mass parts of each component in this example are: 20.0 parts of Si, 0.4 parts of Fe, 5 parts of Cu, 0.2 parts of Mn, 1.3 parts of Mg, 0.1 parts of Zn, 0.2 parts of Zr, and 0.2 parts of auxiliary materials Parts; said auxiliary materials are Cr, Ni, Ti, wherein, Cr, Ni, Ti are proportioned according to 2:5:3.
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Abstract
The invention provides an alloy material for preparing a vehicle air conditioner compressor connecting rod. The alloy material is prepared from the components in parts by mass: 18.0-20.0 parts of Si,0.05-0.5 part of Fe, 4.0-5.5 parts of Cu, 0.02-0.2 part of Mn, 0.8-1.3 parts of Mg, 0.01-0.1 part of Zn, 0.01-0.2 part of Zr and 0.01-0.2 part of an auxiliary material; and the connecting rod is formed through the steps of smelting, degassing, casting, extrusion, blanking, heat treatment and machining. The connecting rod meets requirements of high strength, abrasion resistance and lightweight.
Description
technical field [0001] The invention relates to an alloy material, in particular to an alloy material for preparing a connecting rod of an automobile air-conditioning compressor. Background technique [0002] The connecting rod is an important moving part of the automotive air-conditioning compressor. It requires good wear resistance and physical properties. The parts are processed with high precision. Since the ordinary iron used has been used for a long time, it is easy to rust and cause the parts to fail. Contents of the invention [0003] The object of the present invention is to provide an alloy material for preparing a connecting rod of an automobile air-conditioning compressor. [0004] In order to achieve the above object, the technical solution provided by the present invention is: prepare the alloy material of the connecting rod of the automobile air-conditioning compressor, the parts by mass of each component of the alloy material are: 18.0-20.0 parts of Si, 0.0...
Claims
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Application Information
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