7075 aluminium alloy profile on line quenching method

An aluminum alloy profile, aluminum alloy technology, applied in other manufacturing equipment/tools, manufacturing tools and other directions, can solve the problems of energy consumption, high management cost, low production efficiency, long production process, etc., to reduce production costs and improve production. Efficient and effective effect

Inactive Publication Date: 2006-07-26
GUANGDONG XINGFA ALUMINUM
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  • Abstract
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Problems solved by technology

Under this process flow, the profile is extruded and cooled to normal temperature, and then reheated to the quenching temperature for quenching heat treatment. The disadvantage of

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  • 7075 aluminium alloy profile on line quenching method
  • 7075 aluminium alloy profile on line quenching method
  • 7075 aluminium alloy profile on line quenching method

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] A method for on-line quenching of 7075 aluminum alloy profiles, the method comprising the following steps:

[0028] 1. Firstly melt and cast pure aluminum, pure magnesium, zinc and other raw materials into extrusion cylinder 1 with diameter ratio (see figure 2 ) with a 7075 aluminum alloy cast rod 4 with an inner diameter smaller than 1 to 2mm, and homogenize the 7075 aluminum alloy cast rod 4 in a homogenizing furnace, the homogenization treatment temperature is set at 320°C to 440°C, and the holding time is 10~18h (hour);

[0029] 2. Preheating the extrusion die 5, the preheating temperature is 320°C-420°C, the temperature of the extrusion cylinder 1 is set at 330°C-430°C, and the preheating temperature of the 7075 aluminum alloy casting rod 4 is 330°C-380°C; choose The tonnage of the extrusion machine is 1800T, and the ex...

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Abstract

The invention discloses 7075 aluminum alloy section bar on-line quenching method and system. Using the method, it is not necessary to carry out vertical quenching heat treatment, the productivity is improved and the cost is reduced. The method comprises the following steps: adopting hot extrusion forming method, extruding the 7075 aluminum alloy bar to 7075 aluminum alloy section bar, then carrying out heating treatment. The 7075 aluminum alloy section bar on-line quenching system comprises extruding system, on-line hollow heater and water quench tank.

Description

technical field [0001] The invention relates to a nonferrous metal processing method and system, and more specifically relates to an online quenching method and an online quenching system for 7075 aluminum alloy profiles. Background technique [0002] At present, the quenching heat treatment of 7075 aluminum alloy extruded profiles adopts the method of vertical furnace quenching. Under this process flow, the profile is extruded and cooled to normal temperature, and then reheated to the quenching temperature for quenching heat treatment. The disadvantage of this method is that the equipment investment is large, the energy consumption and management cost are also large, and the production process is very long. Low production efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings in the prior art, and provide an online quenching method and an online quenching system for 7075 aluminum alloy pr...

Claims

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Application Information

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IPC IPC(8): B23P23/04
Inventor 吴锡坤梁奕清
Owner GUANGDONG XINGFA ALUMINUM
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