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Stretching-straightening device for online heating-straightening process of magnesium alloy extrusion material

A heating device and a technology for extruding materials, applied in the field of material processing, can solve problems such as bending and instability, and achieve the effects of improving the quality of profiles, simplifying operations, and avoiding thermal stress.

Active Publication Date: 2013-04-03
重庆昱华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a stretching straightening device for the online heating and straightening process of magnesium alloy extrusions, which effectively solves the bending caused by thermal stress in the existing in-situ heating and straightening technology , and the instability phenomenon caused by the joint action of thermal stress and self-weight

Method used

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  • Stretching-straightening device for online heating-straightening process of magnesium alloy extrusion material
  • Stretching-straightening device for online heating-straightening process of magnesium alloy extrusion material
  • Stretching-straightening device for online heating-straightening process of magnesium alloy extrusion material

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Effect test

Embodiment 1

[0037] Such as figure 1 , 2 As shown, the stretching straightening device for the magnesium alloy extruded material online heating straightening process of the present invention includes a stretching straightening device and a heating device;

[0038] The stretching and straightening mechanism includes a frame 1, a stretching drive mechanism 2 and a clamping drive mechanism. The frame is provided with double rails 4, and the rails are provided with chucks I 5 and II 6 that are slidably matched with the surface of the rails.

[0039] In this embodiment, the stretching driving device 2 is a hydraulic stretching oil cylinder, which is arranged on the frame 1 at the end position corresponding to one end of the double rails, and the stretching rod of the stretching oil cylinder is fixedly connected to the chuck 15. Under the action of the stretching drive device 2, the chuck 15 slides back and forth along the track direction; one end of the frame 1 is provided with a support plate...

Embodiment 2

[0047] Such as image 3 , 4 As shown, the difference between this embodiment and Embodiment 1 is that the insulating roller is arranged between the double rails, and the installation method is that guide grooves 15 extending horizontally along the length direction are respectively provided on the opposite inner sides of the double rails, and the insulating rollers The two ends of the idler are respectively embedded in the guide groove for fixing, and at least one guide groove on one side is provided with at least one notch 16 for loading or removing the insulating idler; through such a structure, the idler can be easily removed , installed, and the installation density of insulating rollers can be adjusted according to the length specification of the material to be straightened.

[0048] The lifting mechanism includes two lifting rollers 17. The lifting rollers 17 are installed on the edges of the two ends of the guide grooves on both sides in a manner parallel to the axis of...

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Abstract

The invention discloses a stretching-straightening device for an online heating-straightening process of a magnesium alloy extrusion material, comprising a stretching-straightening device and a heating device. The stretching-straightening mechanism comprises a bracket, a stretching drive mechanism and a clamping drive mechanism. Double rails are arranged on the bracket. The rail is provided with a chuck I and a chuck II which are matched with the surfaces of the rails in a sliding manner. At least one chuck is capable of sliding forward and backward along the rail direction with the action ofthe stretching drive device. The chuck I and the chuck II are used for generating clamping forces via the clamping drive mechanism respectively. The heating device comprises a lifting mechanism and aheating mechanism. The heating mechanism comprises a positive clamping electrode, a negative clamping electrode and a transformer. The lifting mechanism is arranged under the double rails. The heating device of the stretching-straightening device is capable of guaranteeing that the extrusion material is expanded freely during heating without generating heat stress. The bending phenomenon caused by the heat stress and the instability phenomenon caused by the combined action of the heat stress and the self gravity are avoided via effective support during heating.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a stretching straightening device used in the on-line heating and straightening process of magnesium alloy extruded materials. Background technique [0002] For the straightening of magnesium alloy extrusions, tensile straightening machines are generally used for tension straightening. However, magnesium alloys have poor plastic deformation ability at room temperature. When the original curvature of the extruded material is large, stretching and straightening at room temperature will easily lead to fracture of the extruded material. At present, there are two main types of straightening equipment and processes for magnesium alloy extrusions: [0003] One of them is to first put the extruded material into a heating furnace to be heated to a predetermined temperature, and then transfer the heated magnesium alloy extruded material to a stretch leveler for straightening. The main ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D3/00
Inventor 张丁非王小红柴森森杨眉段作衡朱曾涛
Owner 重庆昱华新材料科技有限公司
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