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Intensive Welding Method for Base of Giant Complex Multi-cavity Test Platform

A test platform and welding method technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of residual stress and stress, concentration, etc., and achieve the effect of ensuring the consistency of welding shrinkage

Active Publication Date: 2020-05-08
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for densely welding the base of a giant complex multi-cavity test platform to solve the problems of residual stress and stress concentration at the weld position of products prepared by existing welding methods

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  • Intensive Welding Method for Base of Giant Complex Multi-cavity Test Platform

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Embodiment Construction

[0035] Hereinafter, embodiments of the dense welding method for the base of a giant and complex multi-cavity test platform of the present invention will be described with reference to the accompanying drawings.

[0036] The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.

[0037] The accompanying drawings in this specification are schematic diagrams, which ass...

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Abstract

The invention discloses an intensive welding method of a giant complex multi-cavity test platform base. The test platform base is formed by welding mounting units, and the mounting units are prefabricated in a factory through steel plates. The welding method comprises the following steps that firstly, welding grooves of the mounting units are pretreated; secondly, the mounting units are pre-assembled into a whole, and mechanical connection between the mounting units is set; thirdly, before welding, the welding joint positions of the mounting units are preheated; fourthly, the mounting units are welded according to a formulated welding process and welding sequence; and fifthly, after welding, welding joints of the mounting units are subjected to postheating treatment. According to the method, pre-welding machining treatment is carried out on welding components, the welding sequence and welding process parameters are determined, matched mechanical connection is adopted in the welding process to jointly guarantee the welding contraction consistency of welding joints of large steel structures, welding deformation is controlled to the minimum, and the base welding precision requirement is met.

Description

technical field [0001] The invention relates to a method for densely welding the base of a giant complex multi-cavity test platform. Background technique [0002] The large-scale test platform is composed of top beams, columns, movable beams and bases. As the foundation of the test platform, the base has a great influence on the entire large-scale test platform. The base of the test platform not only requires high strength and rigidity, but also requires high precision to ensure that other parts of the test platform based on the base meet the installation requirements. The base structure of the large-scale test platform is huge, and the base is fabricated by splicing and welding 9 complex multi-cavity steel structure installation units. The welding volume is large, and the welding process requires high assembly accuracy of the installation units. There will be large residual stress and stress concentration in the weld and its heat-affected zone produced by welding. The exis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02
CPCB23K31/02
Inventor 李云贵孙建运蒋立红史鹏飞李伟张翠强赵永曦李雨亭李六连王鹏刘慧然翟明会王照然苏田中杜得强
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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