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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 scaffolds produced by the existing technology, and provide a manufacturing method for aluminum alloy pipes for quick-installation and movable scaffolds

Method used

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specific Embodiment approach 1

[0017] Specific implementation mode 1: The manufacturing method of the aluminum alloy pipe material for fast-installing and movable scaffolding in this implementation mode is specifically carried out according to the following steps:

[0018] 1. Pretreatment: Surface pretreatment is carried out on the 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 ingot is kept at 340°C-440°C for 3-8 hours, and is extruded once on a 3500T extruder by using the forward extrusion method, and the extruded size is (Φ100~ Φ135)×Φ58mm×4500mm pipes are processed into ingots with dimensions (Φ117.5~Φ132.5)×Φ58.5×260mm after cutting, turning and boring, and then put the ingots into the box furnace Heating, heat preservation at 350°C-450°C for 3-5h, adopting the forward extrusion method, performing secondary extrusion on a 600T extrusion machine, extruding a pipe with a size of ...

specific Embodiment approach 2

[0029] Embodiment 2: This embodiment differs from Embodiment 1 in that in step 1, the surface pretreatment is performed on a cylindrical hollow aluminum alloy ingot with a size of Φ340×Φ106×750 mm. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0030] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the pretreatment in step 1 is to clean up the oil, dust, aluminum chips and other sundries on the surface of the aluminum alloy ingot. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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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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