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Process of making oil cylinder body and cover with aluminium alloy

A technology of aluminum alloy and aluminum alloy melt, which is applied in the field of aluminum alloy manufacturing, can solve the problems of low material utilization rate, complicated manufacturing process and high cost, and achieve the effects of improving production efficiency, simple manufacturing process and light weight

Inactive Publication Date: 2009-01-21
NO 52 INST OF CHINA NORTH IND GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to overcome the defects of complex manufacturing process, high cost and low material utilization rate in the prior art, and propose a simple molding process, low manufacturing cost, high material utilization rate, high product strength and light weight. Preparation method of aluminum alloy oil cylinder cylinder head

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A φ120mm aluminum alloy oil cylinder block, the preparation method is as follows: a, the weight percentage of its aluminum alloy material components is Zn 7%, Mg 3%, Cu 2.4%, Mn 0.8%, Cr 0.1%, and the balance Al; b, After the prepared material is cleaned, it is preheated and dried. At the same time, the crucible melting furnace is preheated and heated. When the preheating temperature rises to 200°C, the surface is painted with zinc oxide, silica gel, and water to prevent the crucible melting furnace from melting. Corrosion; c. Then put Cu, Mn, Cr, and Al in the dried aluminum alloy raw materials into the melting furnace and continue to heat up. When all the metals are melted and the temperature of the aluminum alloy melt is stable to 735°C, add Zn and The weight percentage of the aluminum alloy melt is 0.2% hexachloroethane for refining and refinement. The refining time is 10 minutes. When the temperature of the aluminum alloy melt rises to 730°C, add Mg. After all the m...

Embodiment 2

[0021] A φ240mm aluminum alloy oil cylinder block, the preparation method is as follows: a, the weight percentage of its aluminum alloy material components is Zn 5%, Mg 2.2%, Cu 1.8%, Mn 0.5%, Cr 0.1%, and the balance Al; b, After the prepared material is cleaned, it is preheated and dried. At the same time, the crucible melting furnace is preheated and heated. When the preheating temperature rises to 200°C, the surface is painted with zinc oxide, silica gel, and water to prevent the crucible melting furnace from melting. Corrosion; c. Then put Cu, Mn, Cr, and Al in the dried aluminum alloy raw materials into the melting furnace and continue to heat up. When all the metals are melted and the temperature of the aluminum alloy melt is stable to 735°C, add Zn and The weight percentage of the aluminum alloy melt is 0.2% hexachloroethane for refining and refinement. The refining time is 10 minutes. When the temperature of the aluminum alloy melt rises to 725°C, add Mg. After all the...

Embodiment 3

[0024] A φ300mm aluminum alloy oil cylinder head, the preparation method is as follows: a, the weight percentage of its aluminum alloy material components is Zn 2%, Mg 1.4%, Cu 1.0%, Mn 0.5%, Cr 0.3%, and the balance Al; b, After the prepared material is cleaned, it is preheated and dried. At the same time, the crucible melting furnace is preheated and heated. When the preheating temperature rises to 200°C, the surface is painted with zinc oxide, silica gel, and water to prevent the crucible melting furnace from melting. Corrosion; c. Then put Cu, Mn, Cr, and Al in the dried aluminum alloy raw materials into the melting furnace and continue to heat up. When all the metals are melted and the temperature of the aluminum alloy melt is stable to 735°C, add Zn and The weight percentage of the aluminum alloy melt is 0.2% hexachloroethane for refining and refinement. The refining time is 10 minutes. When the temperature of the aluminum alloy melt rises to 730°C, add Mg. After all the ...

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PUM

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Abstract

The process of making oil cylinder body and cover of aluminum alloy includes the following steps: heating in a smelting furnace the materials comprising Zn 1-8.0 wt%, Mg 1.0-5.0 wt%, Cu 0.8-2.5 wt%, Mn 0.2-1.0 wt%, Cr 0.1-0.3 wt% and Al for the rest; refining; casting in extruding and casting mold through fast closing mold, slowly applying pressure and maintaining pressure for the aluminum alloy to solidify and crystallize; and final solid solution ageing T6 heat treatment on the cast blank to obtain oil cylinder body and cover casting. The process has high material utilizing rate, high production efficiency and low production cost, and the product blank has light weight, compact and homogeneous structure and less faults.

Description

technical field [0001] The invention relates to an aluminum alloy manufacturing technology, in particular to a extrusion casting preparation method for an aluminum alloy cylinder block and cylinder head used for a high-speed rotary oil cylinder of a numerical control machine tool. Background technique [0002] With the development of high-end CNC machine tools, the performance requirements of important components such as oil cylinders, cylinder blocks, and cylinder heads that rotate at high speeds in machine tools are getting higher and higher. At present, the high-speed rotary oil cylinder cylinder head of CNC machine tools is usually made of cast steel, and the parts are heavy. The centrifugal force is large during high-speed rotation, and it will deform after long-term use, which will affect the machining accuracy of CNC machine tools. In the maintenance of machine tool parts Or when replacing, more auxiliary equipment and manpower are needed, and the cost is higher. Ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/08
Inventor 徐永东朱秀荣高明灯费良军王荣彭银江赵国田周灵展
Owner NO 52 INST OF CHINA NORTH IND GRP CORP