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Heating device for forging hollow forge pieces and forging device

A hollow forging and heating device technology, applied in the field of free forging, can solve problems such as internal and external edge cracks of steel forgings, heat preservation of difficult steel hollow mandrels, etc., to prolong forging time, improve forging quality, reduce forging fire times and clean The effect of the number of injuries

Active Publication Date: 2020-09-04
CHINA FIRST HEAVY IND +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the existing forging insulation methods are difficult to effectively insulate the inner and outer corners of the steel forging at the end of the steel hollow mandrel, resulting in cracks appearing in the inner and outer corners of the steel forging

Method used

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  • Heating device for forging hollow forge pieces and forging device
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  • Heating device for forging hollow forge pieces and forging device

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Embodiment Construction

[0034] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front" and "rear" are based on the orientation or positional relationship shown in the drawings, and are only for convenience The present invention is described and simplified descriptions do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

[0036] Moreover, the Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis (th...

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Abstract

The invention provides a heating device for forging hollow forge pieces and a forging device, and particularly relates to the technical field of free forging. The heating device for forging the hollowforge pieces comprises a supporting mechanism and a plurality of heating mechanisms, wherein a first through hole is formed in the supporting mechanism; the plurality of heating mechanisms are connected with the supporting mechanism, the plurality of heating mechanisms are arranged around the first through hole, the heating ends of the plurality of heating mechanisms are arranged towards one sideof the supporting mechanism, and the first through hole penetrates through one side of the supporting mechanism; and the end part of the steel forge piece sleeving a mandrel is heated by the heatingdevice for forging the hollow forge piece. Compared with the prior art, the technical scheme has the advantage that the function of preserving heat of the end face of the steel forge piece at the endof the mandrel is realized.

Description

technical field [0001] The invention relates to the technical field of free forging, in particular to a forging heating device and forging equipment for a hollow forging. Background technique [0002] Super-large steel hollow pipes, such as stainless steel hollow pipes, especially special-shaped integrated pipe forgings with lateral nozzles, cannot be formed by hot extrusion or rolling due to product specification restrictions, and only free forging mandrels can be used Manufactured in the way of elongation, due to the narrow forging interval of stainless steel, large deformation resistance, easy to crack during forging, resulting in high scrap rate, especially for hollow forgings, when the forgings are elongated, the temperature at the inner and outer rounded corners of the end will drop Faster, forging cracks often occur at this position, and the cracks continue to expand along the depth and length directions during the subsequent forging, resulting in the inability to con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K29/00B21J5/06B21K1/14
CPCB21K29/00B21J5/06B21K1/14
Inventor 周岩金嘉瑜刘凯泉郭义杨晓禹李行波
Owner CHINA FIRST HEAVY IND
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