Bent-toothed sealing plate and stamping method

A technology of stamping and sealing plate, which is applied in the direction of engine sealing, metal processing equipment, engine components, etc., can solve the problems of difficult control, large tooth shape deformation, and the root of the tooth shape cannot be bent at the bending angle, and achieves good processing quality. , The effect of large diameter range and high machining accuracy

Active Publication Date: 2012-07-04
HARBIN BOILER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]The tube panel on the heating surface of the boiler has a bent tooth-shaped sealing plate, the tooth shape is an irregular arc shape, and the bending line is close to the root of the tooth shape. The processing method, that is, the first flat plate punching tooth shape, and then the bending forming method, the tooth shape deformation is large, the root of the tooth shape cannot be bent and the bending angle is not easy to control, and corrective measures must be taken to meet the quality requirements

Method used

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  • Bent-toothed sealing plate and stamping method

Examples

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Embodiment 1

[0023] A tooth-shaped sealing plate with bending, its composition includes: a steel plate, the steel plate 1 is pressed into a bent plate with a curvature of 90--180 degrees, and a group of elliptical arcs are pressed at one end of the bent plate shaped gap 2 or circular arc toothed gap 3.

Embodiment 2

[0025] In the serrated sealing plate with bending described in Embodiment 1, the radian of the elliptical arc or the arc of the circular arc is 42-76% of the diameter of the pipe 5 used in conjunction with it.

Embodiment 3

[0027] A stamping processing method with a bent tooth-shaped sealing plate. First, the flat plate is pressed into a 90--180-degree bent plate, and then the bent plate is placed on a 63--100-ton punching machine along the bending line 4. It is suitable for bending The stamping process is carried out on the special stamping die for stamping the tooth shape of the plate. First, the first elliptical arc or circular arc notch is positioned and punched, and then the workpiece is moved to punch the next elliptical arc or circular arc notch. The positioning adopts the positioning method. Line positioning or using positioning plate positioning.

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Abstract

Disclosed are a bent-toothed sealing plate and a stamping method. A tube panel of a heating surface of a boiler is provided with the bent-toothed sealing plate, teeth are in irregular arc shapes, and a bend starting line is close to a tooth root. According to a conventional machining method, firstly, the teeth are stamped by a flat plate, and then bending is performed. Consequently, tooth deformation is large, the tooth root cannot be bent, bending angles are not easy to control, and quality requirements can only be met by taking corrective measures. The bent-toothed sealing plate comprises a steel plate (1) which is pressed into a bent plate with bending deflection of 90-180 degrees, and a group of elliptic arc notches (2) or arc toothed notches (3) are pressed at one bent end of the bent plate. The bent-toothed sealing plate is used for the tube panel of the heating surface of the boiler.

Description

technical field [0001] The invention relates to a sealing plate with a bent tooth shape used for a tube panel on a heating surface of a boiler and a stamping processing method. Background technique [0002] The tube panel on the heating surface of the boiler has a tooth-shaped sealing plate with a bent shape. The tooth shape is an irregular arc shape, and the bending line is close to the root of the tooth shape. method, the deformation of the tooth shape is large, the root of the tooth shape cannot be bent and the bending angle is not easy to control, and corrective measures must be taken to meet the quality requirements. Contents of the invention [0003] The object of the present invention is to provide a sealing plate with a bent tooth shape and a stamping processing method with an elliptical arc or circular arc tooth shape and a pipe with good effect of use. [0004] Above-mentioned purpose realizes by following technical scheme: [0005] A tooth-shaped sealing plate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/02B21D53/00
Inventor 于志杰程亮李文静郑彦彬
Owner HARBIN BOILER
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