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Bend coated steel machining method for angle-steel tower

A processing method, the technology of angle steel tower, which is applied in the field of angle steel tower fire-curved steel processing, can solve the problems of tearing damage of base metal, damage of base metal, manual flame cutting operation is not easy to control, etc., to solve the problem of unstable processing quality , Guarantee the effect of welding quality

Inactive Publication Date: 2017-12-01
HENAN DINGLI POLE TOWER
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Problems solved by technology

Due to the inner arc chamfering at the root of the angle steel leg, the manual flame cutting operation is not easy to control, too much cutting will damage the base material, and if the inner arc is not cut off, it will cause tearing damage to the base material during bending

Method used

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  • Bend coated steel machining method for angle-steel tower
  • Bend coated steel machining method for angle-steel tower

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Embodiment Construction

[0016] A method for processing steel-curved steel of an angle steel tower, comprising the following steps successively:

[0017] (1) Process a plane on the back side of the hot bending position of the angle steel 1, and drill a process hole 3 on the plane. In this embodiment, the method of machining a plane on the back side of the hot bending position of the angle steel 1 is: machining with a file.

[0018] Wherein, in order to improve the quality of the finished product, the surface of the angle steel 1 needs to be cleaned before step (1), and the cleaning method is: water washing or air blowing; wherein, tap water is used for water washing. After cleaning the angle steel 1 with water, it needs to be dried before proceeding to step (1), wherein the method of drying is: natural drying. In this embodiment, using tap water to clean the surface of the angle steel 1 can remove impurities on the surface of the angle steel 1; and using natural drying method can avoid damage to the ...

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Abstract

A method for processing angle steel towers by hot-bending, comprising the following steps in turn: (1) machining a plane on the back side of the angle-steel hot-bending position, and drilling a process hole on the plane; (2) using Flame cutting cuts off the excess part of the angle steel leg, and the incision is connected to the lower edge of the process hole; (3) bend the angle steel according to the specified angle after fire bending; (4) weld the cut gap. The method of the present invention can not damage the base metal during cutting, and at the same time ensure that the angle steel chamfer at the bending position is completely removed; in this way, there will be no tearing damage during bending, and the welding quality is guaranteed, solving the problem of Solved the problem of unstable processing quality of the existing process of hot-batched steel.

Description

technical field [0001] The invention belongs to the technical field of angle steel tower and bent steel processing, and in particular relates to a processing method for angle steel tower and bent steel. Background technique [0002] Because the angle steel tower has the characteristics of less processing procedures, high degree of automation in the processing process, and low cost, the angle steel tower has been widely used in transmission lines. Among them, in the few welding processes in the processing and manufacturing process of the angle steel tower, it is always difficult to better control the processing quality of the hot-curved clad steel. The currently widely used method of processing Baotou Steel is to cut off a redundant part of Baotou Steel with flame cutting according to the desired bending angle, and then weld the cutting edge together after Baotou Steel is bent by fire bending. Because the root of the angle steel leg has an inner arc chamfer, the manual flame...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 齐卫斌崔建新胡全力殷向辉袁金帅
Owner HENAN DINGLI POLE TOWER
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