Test device and test method for simulating welding of tubing under effect of molding binding force

Abstract

The invention discloses a test device and a test method for simulating welding of tubing under the effect of molding binding force. The test device for simulating the welding of the tubing under the effect of the molding binding force is composed of a right limiting vertical roller, a right limiting vertical roller lead screw adjustment mechanism, a conveying mechanism, a guiding mechanism, a right clamping vertical roller, a right clamping vertical roller lead screw adjustment mechanism, a welding device, a lower compression roller, a compression lead screw adjustment system I, an upper supporting roller I, an upper supporting roller lead screw adjustment system I, a cushion roller, a cushion roller lead screw adjustment mechanism, an upper supporting roller II lead screw adjustment mechanism, a base, a left limiting vertical roller, a left limiting vertical roller lead screw adjustment mechanism, a left clamping vertical roller, a left clamping vertical roller lead screw adjustment mechanism, an upper supporting roller II lead screw adjustment system, and an upper supporting roller I left lead screw adjustment system. The device is capable of simulating a welding process of manufacturing welded tube under the conditions of different degrees of binding force, unfitness of butt joint, and joint clearance which are caused by molding.

Description

Technical field: [0001] The invention belongs to the field of welded pipe manufacturing, and relates to a welding test method and device for simulating a pipe material under the action of forming restraint force. Background technique: [0002] The production process of the welded pipe is to continuously curl the plate into a pipe blank through the forming equipment, and then use submerged arc welding, TIG welding, plasma welding and other welding methods for welding. During the pipe forming process, due to the forming force, a large binding force is generated at the weld. [0003] Binding force is one of the important reasons for weld defects and structural deformation caused by welding stress. For example, the production process of the spiral submerged arc welded steel pipe utilizes the three-roller bending principle of the forming machine. By setting obstacles on the unit and acting on the running steel belt, the inner layer of the steel plate is squeezed and squeezed und...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to simulate the welding process under the action of the forming restraint force in the manufacture of welded pipes, and to study the influence of the forming restraint stress, the plastic bending deformation force of the plate and the amount of misalignment of the forming seam on the welding process and quality

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