Device and method for eliminating welding stress of steel pipe ring beam by mechanical vibration

Abstract

The invention discloses a device and method for eliminating the welding stress of a steel pipe ring beam by mechanical vibration. The contact reliability problem of a vibration pickup and a structure member is solved by using a steel pipe ring beam vibration supporting seat and a vibration method, and a crystal tissue of a steel pipe ring beam welding joint is changed through the process of effectively transmitting the vibration wave energy of the vibration pickup to the structure member, thereby obtaining the purpose of weakening and eliminating the welding tress of the steel pipe ring beam structure member.

Description

technical field [0001] The invention relates to the aging of welding stress in the technical field of steel structure welding, in particular to a device and method for eliminating welding stress of a steel pipe ring beam by mechanical vibration. Background technique [0002] Relieving welding stress of steel structure parts is an indispensable link in the production process of steel structures, especially for large steel structures. At present, there are many commonly used methods to eliminate welding stress: manual hammering method; natural aging method; overall high temperature tempering treatment; local high temperature tempering treatment; ultrasonic vibration stress relief method and vibration aging stress relief method. Due to the high labor intensity and low efficiency of the manual hammering method; the natural aging method takes too long and takes up a large space; the high temperature tempering treatment requires large tempering equipment; and the vibration...

AI Technical Summary

Problems solved by technology

For non-box structural parts, especially for the treatment of large-scale steel pipe ring beams to eliminate welding stress after welding, there is no precedent for using vibration method to eliminate welding stress of large steel pipe ring beams. Due to the structure and shape of large steel pipe ring beams Due to the particularity of the vibration pickup and structural parts, it is difficult to clamp and position the vibration pickup and the structural parts, and it is difficult to guarantee the contact reliability between the vibration pickup and the structural parts. As a result, the vibration wave energy of the vibration pickup cannot be effectively transmitted to the structural parts, thus restricting the structural Relief effect of welding stress

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