Manufacturing method of aluminum alloy tube for quickly installed mobile scaffold

A manufacturing method and technology of aluminum alloy, which are applied in the accessories of scaffolding, building structure, housing structure support, etc., can solve the problems of low strength and small effective load, and achieve high material strength, large effective load, safe and reliable use. Effect

Inactive Publication Date: 2013-12-25
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of low strength and small payload of aluminum alloy pipes for quick-installation and movable s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Specific implementation mode 1: The manufacturing method of the aluminum alloy pipe for quick assembly movable scaffold in this embodiment is specifically carried out according to the following steps:

[0018] 1. Pretreatment: Perform surface pretreatment on a cylindrical hollow aluminum alloy ingot with a size of (Φ270~Φ360)×Φ106×750mm to obtain the treated aluminum alloy ingot;

[0019] 2. Extrusion: The processed aluminum alloy ingots are kept at 340℃~440℃ for 3~8h, and the forward extrusion method is used for one extrusion on a 3500T extruder, and the size is (Φ100~ Φ135)×Φ58mm×4500mm pipes are cut, car skinned, bored, processed into ingots of size (Φ117.5~Φ132.5)×Φ58.5×260mm, and then the ingots are put into the box furnace Heat, keep the temperature at 350℃~450℃ for 3~5h, adopt forward extrusion method, carry out secondary extrusion on 600T extruder, extrude the pipe with the size of Φ62×Φ54×3900mm to obtain the pipe wool for cold rolling ;

[0020] 3. Cold rolling and...

Example Embodiment

[0029] Specific embodiment two: this embodiment is different from specific embodiment one in that in step one, the surface pretreatment is performed on a cylindrical hollow aluminum alloy ingot with a size of Φ340×Φ106×750 mm. The other steps and parameters are the same as in the first embodiment.

Example Embodiment

[0030] Specific embodiment three: This embodiment is different from specific embodiments one or two in that the pretreatment in step one is to clean up the oil, dust, aluminum chips and other debris on the surface of the aluminum alloy ingot. The other steps and parameters are the same as in the first or second embodiment.

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Abstract

The invention discloses a manufacturing method of an aluminum alloy tube for a quickly installed mobile scaffold, and the method relates to a manufacturing method of the aluminum alloy tube for the scaffold. The manufacturing method mainly solves the problems of low strength and small effective load of a quickly installed mobile scaffold of the prior art, and comprises the following steps: (1) pre-treatment; (2) extrusion; (3) cold rolling and stretching; (4) finishing; (5) low-temperature annealing. The tensile strength sigma b of the aluminum alloy tube for the quickly installed mobile scaffold is more than or equal to 310MPa, the yield strength sigma 0.2 is more than or equal to 265MPa, and delta is more than or equal to 10 percent. The aluminum alloy tube has high strength and large effective load, and is used safely and reliably. The maximum load of up to 500kg of a 12m high double wide frame is realized. Every layer of workbench plate can bear 200KG/M2 on average, and the whole aluminum alloy quickly installed mobile scaffold can bear the weight of 1 ton. Meanwhile, the aluminum alloy scaffold has the characteristics of light weight, high ejection speed, convenience in moving and the like.

Description

technical field [0001] The invention relates to a method for manufacturing aluminum alloy pipes for scaffolding. Background technique [0002] With the rapid development of modern science and technology, new technologies, new materials, and new processes emerge in an endless stream and change with each passing day. In this situation, new high-strength materials are constantly emerging, and high-strength aluminum alloy materials are being used more and more widely. The aluminum alloy quick-loading movable scaffold is an example of successful application. This scaffold is a new type of all-round multi-directional aluminum alloy scaffold. It adopts a single-rod aluminum tube and has no height limit. Height, any site, any complex engineering environment. [0003] The main advantages of aluminum alloy quick-loading movable scaffolding are: high material strength, large payload, safe and reliable use; light weight, which is equivalent to 1 / 3 of the traditional steel scaffolding;...

Claims

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Application Information

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IPC IPC(8): E04G5/00
Inventor 孙迪王强高新宇刘科研邹京滨秦丽艳李浩言张燕飞
Owner NORTHEAST LIGHT ALLOY CO LTD
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