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Distressing device for U-shaped elbow

A technology for stress relief and pipe bending, applied in furnaces, heat treatment equipment, heat treatment furnaces, etc., can solve the problems of poor pipe fixation, complex structure, inconvenient operation, etc., and achieve the effect of improving heating efficiency and good fixation

Active Publication Date: 2016-11-09
JIANGSU WUJIN STAINLESS STEEL PIPE GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problems that the commonly used annealing stress relief device has a complex structure, poor fixability of the elbow during heating, and inconvenient operation, a U-shaped elbow stress relief device is provided

Method used

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  • Distressing device for U-shaped elbow
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  • Distressing device for U-shaped elbow

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Embodiment Construction

[0016] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] Such as figure 1 As shown, a U-shaped elbow stress relief device includes a left heating plate 2 and a right heating plate 3, the left heating plate 2 is arranged opposite to the right heating plate 3, and the left heating plate 2 is fixed on the bottom plate 1, The right heating plate 3 is slidably arranged on the base plate 1, as figure 2 with 3 As shown, the opposite side of the left heating plate 2 and the right heating plate 3 is an inner surface, and the inner surface of the left heating plate 2 is provided with fixing pins, and the fixing pins include a first fixing pin 4, a second fixing pin 5 and the third fixed pin 6, the three fixed pins ...

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Abstract

The invention relates to a distressing device for a U-shaped elbow. The distressing device for the U-shaped elbow comprises a left heating plate and a right heating plate, and the left heating plate and the right heating plate are arranged oppositely. The left heating plate is fixed to a bottom plate, and the right heating plate is arranged on the bottom plate in a sliding mode. Three fixing pins are arranged on the inner side face of the left heating plate, and the three fixing pins are distributed in an isosceles triangle mode. The first fixing pin is fixed to the inner side face of the left heating plate. The second fixing pin and the third fixing pin are symmetrically arranged below the first fixing pin. A horizontal guide rail is arranged on the inner side face of the left heating plate, and the second fixing pin and the third fixing pin are arranged in the guide rail in a sliding mode. The opposite sides of the second fixing pin and the third fixing pin are inner sides, and a spring is connected between the inner side of the second fixing pin and the inner side of the third fixing pin. A steel pipe is clamped and heated through the left heating plate and the right heating plate, and the left heating plate is provided with the fixing pins for fixing the steel pipe, so that the steel pipe is well fixed while being heated and cannot move, and the heating efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of stress relief equipment, in particular to a U-shaped elbow stress relief device. Background technique [0002] Elbows are widely used in various pressure vessels such as boilers, petrochemicals, and aerospace, and are an important part of piping systems. Therefore, the safety application of elbows has attracted more and more attention. Under the action of external force, the outer material of the pipe is stretched longer, the pipe wall is thinned, the inner material is compressed, the pipe wall is thickened, and the bending stress generated affects the use of the elbow and affects the safe application of the elbow. The stress relief methods of the elbow include vibration stress relief and stress relief annealing. The commonly used annealing stress relief device has a complex structure, and the fixation of the bend pipe is poor during heating, which is not easy to operate. Contents of the invention [0...

Claims

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Application Information

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IPC IPC(8): C21D9/08C21D1/34
CPCC21D1/34C21D9/08
Inventor 杨之光周志斌沈彦吟
Owner JIANGSU WUJIN STAINLESS STEEL PIPE GRP
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