A kind of cutting method of round steel pipe

A cutting method and technology for round steel pipes are applied in the cutting field of round steel pipes, which can solve the problems of potential safety hazards and the collapse of rods, and achieve the effects of improving cutting efficiency, ensuring safety and improving safety.

Active Publication Date: 2022-06-07
CHINA CONSTR STEEL STRUCTURE ENG CO LTD
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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the rods in the prior art are prone to "bounce" during cutting and there are potential safety hazards in the cutting process of round steel pipes, so as to provide a round steel pipe with safe and efficient cutting cutting method

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  • A kind of cutting method of round steel pipe
  • A kind of cutting method of round steel pipe
  • A kind of cutting method of round steel pipe

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specific Embodiment approach

[0025] like Figure 1-3 A specific embodiment of the cutting method of the shown round steel pipe includes:

[0026] First, according to the cross-sectional size, thickness and bending deformation of the round steel pipe to be cut, the part of the round steel pipe to be cut is divided into four parts along its circumferential direction, and the projections of the four parts are all rectangles. Among them, the radian of the first part 1, the second part 2 and the third part 3 are all 60°, the radian of the fourth part 4 is 180°, and the second part 2 and the third part 3 are symmetrically distributed on the two sides of the first part 1 respectively. On the side, the fourth part 4 is arranged corresponding to the first part 1, the second part 2 and the third part 3, and is located at the bottom of the round steel pipe.

[0027] Then, the divided first part 1 round steel pipe is axially cut along the divided track, and after radial cutting is performed, the first part 1 round s...

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Abstract

The invention relates to the technical field of steel pipe processing, in particular to a method for cutting a round steel pipe, comprising: dividing the part of the round steel pipe to be cut into at least two parts along its circumference; After axial cutting and then radial cutting, the first part of the round steel pipe is peeled off, and then the remaining part is cut until the part of the round steel pipe to be cut is completely peeled off. The invention provides a safe and efficient cutting method for round steel pipes.

Description

technical field [0001] The invention relates to the technical field of steel pipe processing, in particular to a method for cutting a round steel pipe. Background technique [0002] With the acceleration of urban renewal, steel structures are widely used in urban renewal and demolition, renovation and reinforcement projects because of their novel shapes, lightness and economy. The most widely used steel structures are long-span steel structures. The main structural forms are Truss structure, grid structure, many of the above structural forms are inseparable from round steel pipe members. For the demolition and modification of the existing large-span steel structure, it is inevitable to carry out the demolition of the round steel pipe members. [0003] The traditional flame gas cutting process is to use the cutting torch to cut the entire section along the section direction of the round steel pipe. There are mainly the following problems: the operator mainly uses the hanging...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K7/00B23K7/10
CPCB23K7/006B23K7/10
Inventor 陈振明张弦周鹏孙朋
Owner CHINA CONSTR STEEL STRUCTURE ENG CO LTD
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