Extruding processing technology of aluminium alloy tubing with large diameter

An aluminum alloy pipe and extrusion processing technology, which is applied in the field of aluminum alloy extrusion, can solve the problems of difficult production of large-caliber aluminum alloy pipe, small diameter of aluminum alloy pipe production, and large consumption of auxiliary equipment, etc., to eliminate long production cycle, Effect of improving strength characteristics and reducing device failure rate
CN102492877AInactive Publication Date: 2012-06-13CHINA ZHONGWANG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ZHONGWANG
Publication Date
2012-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an extruding processing technology of an aluminium alloy tubing with large diameter. The method comprises steps of a. proportioning, b. casting, c. uniformization, d. surface treatment on casting rod, e. casting rod heating, f. extrution, g. on-line quenching, h. stretching, i. artificial aging and j. straightening, etc. Strict control on each parameter can solve problems of extruding production of tubing with large diameter, eliminate disadvantages of long production period, low production efficiency, high energy consumption, huge environmental pollution and expensiveauxiliary equipment of rolling and drawing, save cost, simplify arrangement of auxiliary equipment and further reduce failure rate of an apparatus. The energy consumption of the present invention is merely 1 / 4 that of rolling and drawing, and water consumption is 1 / 8 that of a steam jet pump set; therefore, the invention brings obvious economic effects.
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Description

technical field

[0001] The invention relates to the field of aluminum alloy extrusion, in particular to an extrusion process for large-diameter aluminum alloy pipes. Background technique

[0002] With the development of my country's aluminum extrusion industry, the demand for aluminum alloy pipes in the fields of transportation, construction, navigation, mining and scientific research is increasing, but the requirements for the dimensional accuracy and appearance quality of the pipes are relatively high. The extrusion technology of aluminum alloy small-diameter (below Φ220mm) pipes has become increasingly mature, but there are few studies on large-scale pipes at home and abroad. The degree requirements are very strict, and the production is very difficult. Contents of the invention

[0003] In view of this, the object of the present invention is to provide a large-diameter aluminum alloy pipe extrusion process, which solves the problem of difficult production of large-dia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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