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Application of aluminum alloy material in hydraulic valve body and aluminum alloy hydraulic switching valve

A technology of aluminum alloy materials and hydraulic valves, which is applied in valve details, valve devices, valve housing structures, etc., can solve the problems of heavy valve body, poor corrosion resistance, and difficult processing, and achieve good processing performance and corrosion resistance Good, the effect of reducing the difficulty of processing

Inactive Publication Date: 2012-04-18
曾琦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing hydraulic valve bodies are cast iron valve bodies made of cast iron, which are not only heavy and heavy, but also easy to rust and have poor corrosion resistance
Due to the high content of S and P in cast iron, its plasticity and toughness are low, it is not easy to process, and the processing is difficult

Method used

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  • Application of aluminum alloy material in hydraulic valve body and aluminum alloy hydraulic switching valve
  • Application of aluminum alloy material in hydraulic valve body and aluminum alloy hydraulic switching valve
  • Application of aluminum alloy material in hydraulic valve body and aluminum alloy hydraulic switching valve

Examples

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Embodiment Construction

[0020] Example. The hydraulic switching valve is made of aluminum alloy material. The switching valve is used to realize the automatic switching between high speed and low speed of the excavator. Such as figure 1 , 2 As shown, a valve body 1 is included, and a large valve stem 2 and a small valve stem 3 are housed in the valve body 1. The valve body 1 is made of aluminum alloy material, the aluminum alloy material is calculated by weight percentage, and its composition is Cu 2.0-6.0%, Mn 0.05%, Ti 0.01-0.5%, Cr 0.01-0.2%, Cd 0.01% ~0.4%, Zr 0.01~0.25%, B 0.005~0.04%, rare earth element Pr 0.05~0.3%, and the rest are Al and trace impurity elements. The preparation method of the aluminum alloy comprises the following steps: (1) adding an appropriate amount of aluminum ingot or molten aluminum liquid into the melting furnace, heating to melt it completely and keeping it warm at 660-850°C; Add Ti, Cr, Cd, Zr, B, Pr trace elements after Cu, Mn alloy elements stir evenly; Chlo...

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Abstract

The invention discloses application of an aluminum alloy material in a hydraulic valve body and an aluminum alloy hydraulic switching valve. Particularly the aluminum alloy material is applied to manufacture of the hydraulic valve body. The aluminum alloy comprises the following components in percentage by weight: 2.0-6.0% of Cu, 0.05%% of Mn, 0.01-0.5% of Ti, 0.01-0.2% of Cr, 0.01-0.4% of Cd, 0.01-0.25% of Zr, 0.005-0.04% of B, 0.05-0.3% of rare-earth element Pr and the balance of Al and trace impurity elements. According to the invention, great breakthrough on the production materials of the tradition hydraulic valve is made, the weight of the valve body is greatly reduced, the corrosion resistance of the valve body is improved and the valve body is easy to process.

Description

technical field [0001] The invention relates to the application of an aluminum alloy material on a hydraulic valve body, and at the same time relates to an aluminum alloy hydraulic switching valve. Background technique [0002] Existing hydraulic valve bodies are all cast iron valve bodies made of cast iron. Not only the valve body is heavy and heavy, but also easy to rust and has poor corrosion resistance. Due to the high content of S and P in cast iron, its plasticity and toughness are low, it is not easy to process, and the processing is difficult. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an application of an aluminum alloy material on a hydraulic valve body, and at the same time provide an aluminum alloy hydraulic switching valve, thereby reducing the weight of the hydraulic valve body, improving its corrosion resistance and processing performance, and overcoming The above-mentioned deficiencies in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/12F16K27/00
Inventor 曾琦
Owner 曾琦
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