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Method for preparing sandwich board with high efficiency and high quality by electric arc and sandwich board

A sandwich board, high-efficiency technology, used in arc welding equipment, manufacturing tools, welding equipment, etc., can solve the problem of high equipment cost, T-shaped welding joint stress concentration, sandwich board laser welding core board and panel T-joint connection width Insufficient and other problems, to achieve the effect of good molding and avoid core board welding leakage

Active Publication Date: 2021-10-01
NINGXIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the laser welding method is mainly used in the market to manufacture sandwich panels, but in addition to the problem of high equipment costs, the width of the T-joint connection between the center panel and the panel T-joint of the sandwich panel laser welding is insufficient, resulting in the stress concentration of the T-welded joint and the strength of the sandwich panel. and reduced resilience

Method used

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  • Method for preparing sandwich board with high efficiency and high quality by electric arc and sandwich board
  • Method for preparing sandwich board with high efficiency and high quality by electric arc and sandwich board
  • Method for preparing sandwich board with high efficiency and high quality by electric arc and sandwich board

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Please see figure 1 In this embodiment, a method for efficiently and high-quality electric arc preparation of sandwich boards is provided, and the method for efficiently and high-quality preparation of electric arc sandwich boards includes the following steps,

[0019] (1) Determine the welding groove and size: according to the thickness of the sandwich panel panel 01 and the shape of the core plate 02 prepared as required, design the shape and size of the butt welding groove 04; among them, the welding groove 04 adopts I type;

[0020] (2) Preparation of ceramic lining board: According to the thickness of the sandwich board panel 01 and the shape of the core board 02 prepared as required, prepare a suitable ceramic lining board 03. In this embodiment, we choose the overall I-shaped ceramic lining board 03, and Combine four ceramic lining boards 03 to form a square hole-shaped ceramic lining board 03 assembly; the end face of the ceramic lining board 03 is square, and t...

Embodiment 2

[0025] Please see figure 2 In this embodiment, a method for efficiently and high-quality electric arc preparation of sandwich boards is provided, and the method for efficiently and high-quality preparation of electric arc sandwich boards includes the following steps,

[0026] (1) Determine the welding groove and size: according to the thickness of the sandwich panel panel 01 and the shape of the core plate 02 prepared as required, design the shape and size of the butt welding groove 04; among them, the welding groove 04 adopts I type;

[0027] (2) Ceramic lining board preparation: prepare a suitable ceramic lining board 03 according to the thickness of the sandwich panel panel 01 and the shape of the core board 02. In this example, we choose the overall I-shaped ceramic lining board 03, and The two ends are triangular in shape, and the surface is flat, and its cross-section just coincides with the angle interface formed by the corresponding welding groove 04, the outer panel ...

Embodiment 3

[0032] Please see image 3 In this embodiment, a method for efficiently and high-quality electric arc preparation of sandwich boards is provided, and the method for efficiently and high-quality preparation of electric arc sandwich boards includes the following steps,

[0033] (1) Determine the welding groove and size: according to the thickness of the sandwich panel panel 01 and the shape of the core plate 02 prepared as required, design the shape and size of the butt welding groove 04; among them, the welding groove 04 adopts I type;

[0034] (2) Ceramic lining board preparation: prepare a suitable ceramic lining board 03 according to the thickness of the sandwich panel panel 01 and the shape of the core board 02. In this example, we choose the overall I-shaped ceramic lining board 03, and The two ends are triangular in shape, but the surface of one of the ends in contact with the core plate 02 is arc-shaped, while the surface in contact with the panel 01 is flat;

[0035] (3)...

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Abstract

A method for preparing sandwich panels with high efficiency and high quality by electric arc and the sandwich panels. The present invention is aimed at problems such as insufficient connection width of the T-joint between the core panel and the panel, concentration of stress at the welded joint, and decrease in strength and toughness of the sandwich panel when laser welding the sandwich panel. , a low-cost, high-quality, high-efficiency arc welding method for manufacturing sandwich panels is proposed; before welding the sandwich panels, the ceramic liner is assembled with the panel and the core panel, and the welding of the panel and the core panel is completed. The method of fixing the liner ceramic liner at the groove realizes the process control accuracy requirements of the welding arc. Under the condition of ensuring the perfect filling of the groove, it also realizes the good formation of the weld seam at the junction of the face plate and the core plate, avoiding the arc The process is prone to the problem of core board solder leakage.

Description

technical field [0001] The invention relates to the technical field of material processing, in particular to a method for preparing sandwich panels with high efficiency and high quality by electric arc and the sandwich panels. Background technique [0002] The metal sandwich panel is a new type of lightweight hollow sandwich structure with two panels sandwiching a core panel. It has the characteristics of high strength, high strength and high specific stiffness, and has been widely used in the market. It is widely used in many fields such as ships, bridges, and automobiles. For example, it is often used in the dash panel, top cover outer panel, door outer panel, fuel tank bottom shell and outer cover of automobiles. The application of sandwich panels not only ensures the rigidity requirements of the mechanical structure, but also greatly reduces the weight of the structure, achieving the purpose of light weight. At present, the laser welding method is mainly used to manufac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K9/00B23K9/235
CPCB23K9/00B23K9/0026B23K9/235B23P15/00
Inventor 蒋小霞苟宁年苑永光杨刚韩潇橦孙硕王邦乐
Owner NINGXIA UNIVERSITY