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Cylinder block material for pneumatic actuator and preparation method thereof

A technology for pneumatic actuators and cylinders, which is applied in the field of cylinder materials for pneumatic actuators and its preparation, can solve the problems of core material cylinders not meeting the requirements, poor sealing effect, short life, etc., and achieve transmission efficiency and The effect of high execution accuracy, good mechanical properties, and small coefficient of thermal expansion

Active Publication Date: 2016-11-09
WUXI CHENGTIANNUO ACTUATOR MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the pneumatic actuators used in the market still have problems such as material hardness, wear resistance, and poor corrosion resistance. The fit is not tight enough, the sealing effect is poor, the operation is not stable, the execution accuracy is low, and the temperature difference range of the applicable temperature is small. Problems such as short life and high operating costs have seriously affected the economic benefits of the enterprise.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A cylinder material for a pneumatic actuator according to the present invention has the distribution ratio of each component in terms of weight percentage, Fe: 0.5%, Cu: 2%, Mg: 0.6%, Mn: 0.18%, Ni : 1.2%, Zn: 2%, B 2 o 3 : 0.4%, SiO 2 : 2.2%, TiC: 1.5%, and the rest is Al.

[0017] A method for preparing a cylinder body for a pneumatic actuator, comprising the following steps,

[0018] (1) Embryo making: Mix the prepared raw materials of each component and add them to the melting furnace, heat up to melt, and after the raw materials are completely melted, adjust the internal temperature of the melting furnace to 750°C for refining treatment, and then melt the Adjust the temperature inside the furnace to 720°C, carry out refining treatment, and finally cool slowly to obtain a Φ200mm cylindrical aluminum alloy billet;

[0019] (2) Billet pretreatment: After cleaning the aluminum alloy billet and removing surface impurities such as oil stains, heat the aluminum alloy ...

Embodiment 2

[0024] A cylinder material for a pneumatic actuator according to the present invention has the distribution ratio of each component in terms of weight percentage, Fe: 0.55%, Cu: 1.6%, Mg: 0.8%, Mn: 0.17%, Ni : 1.5%, Zn: 2%, B 2 o 3 : 0.5%, SiO 2 : 1.8%, TiC: 2%, and the rest is Al.

[0025] A method for preparing a cylinder body for a pneumatic actuator, comprising the following steps,

[0026] (1) Embryo making: Mix the prepared raw materials of each component and add them to the melting furnace, heat up to melt, and after the raw materials are completely melted, adjust the internal temperature of the melting furnace to 755°C for refining treatment, and then melt the Adjust the temperature inside the furnace to 730°C, carry out refining treatment, and finally cool slowly to obtain a Φ400mm cylindrical aluminum alloy billet;

[0027] (2) Billet pretreatment: After cleaning the aluminum alloy billet and removing surface impurities such as oil stains, heat the aluminum alloy...

Embodiment 3

[0032] A cylinder material for a pneumatic actuator according to the present invention has the distribution ratio of each component in terms of weight percentage, Fe: 0.6%, Cu: 2.2%, Mg: 0.9%, Mn: 0.16%, Ni : 1.6%, Zn: 1.8%, B 2 o 3 : 0.55%, SiO 2 : 1.6%, TiC: 2.2%, and the rest is Al.

[0033] A method for preparing a cylinder body for a pneumatic actuator, comprising the following steps,

[0034] (1) Embryo making: Mix the prepared raw materials of each component and add them to the melting furnace, heat up to melt, and after the raw materials are completely melted, adjust the internal temperature of the melting furnace to 760°C for refining treatment, and then melt the Adjust the temperature inside the furnace to 740°C for refining treatment, and finally cool slowly to obtain a Φ600mm cylindrical aluminum alloy billet;

[0035] (2) Blank pretreatment: After cleaning the aluminum alloy blank and removing surface impurities such as oil stains, heat the aluminum alloy blan...

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PUM

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Abstract

The invention relates to a material of the cylinder body of a pneumatic actuating mechanism and a preparation method thereof. The material is composed of the following components in percentage by weight: 0.4 to 0.7% of Fe, 1 to 2.5% of Cu, 0.6 to 1.0% of Mg, 0.15 to 0.2% of Mn, 1 to 2% of Ni, 1.5 to 2.5% of Zn, 0.4 to 0.6% of B2O3, 1.5 to 2.5% of SiO2, 1 to 3% of TiC, and the balance being Al. The cylinder body is prepared by the following steps of blank preparation, blank pretreatment, mould pretreatment, forging and stamping, and moulding. The prepared cylinder body has the characteristics of high hardness, good corrosion resistant performance, little thermal expansion coefficient, low friction index, and high wear resistant performance. At the same time, the manufacture technology is improved to enable the cylinder body to have a good mechanical performance.

Description

technical field [0001] The invention relates to a cylinder body material and a preparation method thereof, in particular to a cylinder body material for a pneumatic actuator used in thermoelectric, petroleum, chemical and other industries and a preparation method thereof. Background technique [0002] Pneumatic actuator is an actuator that drives the opening and closing or regulating valve through air pressure. It is widely used in thermal power, chemical industry, petroleum and other industries with high safety requirements, so its quality requirements are very high. At present, the pneumatic actuators used in the market still have problems such as material hardness, wear resistance, and poor corrosion resistance. The fit is not tight enough, the sealing effect is poor, the operation is not stable, the execution accuracy is low, and the temperature difference range of the applicable temperature is small. Problems such as short life and high operating costs have seriously a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C21/18C22C21/10C22C32/00C22F1/04C22F1/053C22F1/057
Inventor 徐晶张莹
Owner WUXI CHENGTIANNUO ACTUATOR MFG CO LTD