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Hot work bending technology for spatial hyperbolic circular tube

A hyperbolic circle and pyrotechnic technology, which is applied in the field of space hyperbolic circular pipe pyrotechnic bending, can solve the problems of poor bending quality and high labor intensity, and achieve strong pipe bending ability, low labor intensity, and high production efficiency. high efficiency effect

Inactive Publication Date: 2013-01-23
YINGDU BRIDGE STEEL STRUCTURE ENG
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Conventional pipe bending machines can only bend single bends, the quality of the pipe bending is not good, and the labor intensity is high.

Method used

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  • Hot work bending technology for spatial hyperbolic circular tube

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Embodiment 1

[0018] A space hyperbolic circular pipe pyrotechnic bending process in this embodiment includes the following steps: 1) steel pipe blanking and groove processing ， According to the design drawings and processing technology requirements, and considering the length of the straight pipe and the length of the bent part to determine the blanking size of the steel pipe; 3) Bend pipe correction, using one or more of flame correction, flame plus external force jack correction, and flatness flame correction.

[0019] Step 1) After blanking is completed, mark the steel pipe, and the marking requirements are as follows.

[0020] Marking content: drawing number / total number of paragraphs—what paragraph, process length.

[0021] Marking requirements: The writing of the paint is correct and clear.

[0022] Marking position: The lower end of each steel pipe is 100mm away from the port, and the range of (80-100)×(400-500) mm2 is used for marking.

[0023] Port alignment reference mark: Mar...

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Abstract

The invention discloses a hot work bending technology for a spatial hyperbolic circular tube. The hot work bending technology comprises the following steps of: 1) discharging a steel tube, processing a groove, and determining a charging size of the steel tube according to a design drawing and a processing technology requirement in consideration of the length of a straight tube and a length of an unfolded bent part; 2) bending and forming a bent tube, namely manufacturing a bent tube fixture frame, bending and forming the steel tube, and measuring the bent tube; and 3) correcting the bent tube by one or more of the following methods: flame correction, flame and outer force jack correction and planeness flame correction. By the technology, a die is not required; the forming quality of the bent tube is high; the tube bending capacity is high; the technology has the characteristics of high production efficiency and low labor intensity; and a specially-shaped steel tube can be ingeniously bent and processed.

Description

technical field [0001] The invention relates to a pyrotechnic bending process of a space hyperbolic circular tube. Background technique [0002] In the current building structure, the appearance is becoming more and more novel and dynamic. For example, the upper streamer structure of Qiandao Lake Qiushui Square, the grid structure of some large gymnasiums, etc. Some of these building structures are circular tube structures, and the circular tubes are often space hyperbolic tubes. Conventional pipe bending machines can only bend a single bend, and the quality of the pipe bending is not good, and the labor intensity is high. Contents of the invention [0003] The object of the present invention is to provide a pyrotechnic bending process for space hyperbolic circular pipes. The present invention has good pipe forming quality, strong pipe bending ability, high production efficiency and low labor intensity, and skillfully solves the problem of space special-shaped steel ...

Claims

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Application Information

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IPC IPC(8): B21D7/00B21D7/16B21D7/14B21D3/00
Inventor 黄修生
Owner YINGDU BRIDGE STEEL STRUCTURE ENG
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