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
  • Application Information

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Problems solved by technology

Conventional pipe bending machines can only bend single bends, the qua

Method used

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  • Hot work bending technology for spatial hyperbolic circular tube

Examples

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Example Embodiment

[0017] Example 1

[0018] The pyrotechnical bending process of a spatial hyperbolic circular pipe of this embodiment includes the following steps: 1) Steel pipe blanking and groove processing ， Determine the blanking size of the steel pipe according to the design drawings and processing requirements, and consider the length of the straight pipe and the length of the bent part after unfolding; 2) Bend pipe bending: including the production of the bent pipe frame, the bending of the steel pipe, and the bent pipe 3) Elbow correction, using one or more of flame correction, flame plus external force jack correction, and flatness flame correction.

[0019] Step 1) Mark the steel pipe after the blanking is completed. The marking requirements are as follows.

[0020] Marking content: drawing number / total number of segments-which segment, process length.

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

[0022] Marking position: The lower end of each section of steel pipe is 100mm...

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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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