Single-side welding and double-side forming welding method for ceramic gasket

A single-sided welding double-sided, welding method technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of increasing labor intensity and operation difficulty of workers, increasing working hours, and lack of clear guidance on the use of process methods. Reduce labor intensity and construction difficulty, reduce welding workload, and solve the effect of overhead welding tasks

Inactive Publication Date: 2013-10-02
中船桂江造船有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. When some products have to be constructed in the field, the production conditions are poor, and there is no large-scale lifting equipment to cooperate with the return of its structure, so it is difficult to realize the welding work of the back weld;
[0004] 2. When some products have to be constructed in the field, due to the constraints of construction conditions and sites, the overhead welding position is narrow, the overhead welding operation is difficult, and the quality of the weld is difficult to guarantee;
[0005] 3. There are heavy overhead welding position welds, which greatly increase the labor intensity and operation difficulty of workers;
[0006] 4. After the front weld seam is welded, the back weld seam needs to be cleaned by carbon arc gouging, and the welding can only be carried out after the grinder is polished and cleaned, which increases the working hours of multiple types of work and more than doubles the welding workload , low production efficiency
[0007] However, the conventional process has not provided technical support for single-sided welding and double-sided forming of thin steel plate ceramic liners, and there is no clear guidance for the use of this process method.

Method used

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  • Single-side welding and double-side forming welding method for ceramic gasket
  • Single-side welding and double-side forming welding method for ceramic gasket
  • Single-side welding and double-side forming welding method for ceramic gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: CCSB steel plate (thickness = 4mm) solid welding wire ceramic liner single side welding double side forming flat butt welding.

[0032] Welding conditions:

[0033] (1) Welding requirements for flat butt joints: weld inclination angle is 0°, deviation ±5°, weld seam rotation angle is 90°, deviation ±10°;

[0034] (2) The welding equipment is: KR350 carbon dioxide welding machine;

[0035] (3) The welding wire is: solid core welding wire CHW-50C6SM of Sichuan Atlantic Welding Co., Ltd., Ф1.0mm;

[0036] (4) The ceramic liner is: Zhejiang Xiangshan brand JN-404-2 type liner;

[0037] (5) The protective gas is: pure CO 2 Gas, with a purity of not less than 99.50%;

[0038] (6) The welding parameters are:

[0039]

[0040] Soldering steps:

[0041] (1) Groove treatment of the butt joint plate: on two butt joint CCSB thin steel plates (thickness = 4mm), the welded bevel is processed by mechanical planing, the bevel angle is 30゜~40゜, no blunt edge is left;...

Embodiment 2

[0047] Example 2: CCSB steel (thickness = 4mm) flux-cored wire ceramic liner single-sided welding double-sided forming flat butt welding.

[0048] Welding conditions:

[0049] (1) Welding requirements for flat butt joints: weld inclination angle is 0°, deviation ±5°, weld seam rotation angle is 90°, deviation ±10°;

[0050] (2) The welding equipment is: KR350 carbon dioxide welding machine;

[0051] (3) The welding wire is: flux-cored welding wire SQJ501 of Tianjin Sanying Welding Co., Ltd., Ф1.0mm;

[0052] (4) The ceramic liner is: Zhejiang Xiangshan brand JN-404-2 type liner;

[0053] (5) The protective gas is: pure CO 2 Gas, with a purity of not less than 99.50%;

[0054] (6) The welding parameters are:

[0055]

[0056] Soldering steps:

[0057] (1) Groove treatment of the butt joint plate: on two butt joint CCSB thin steel plates (thickness = 4mm), the welded bevel is processed by mechanical planing, the bevel angle is 30゜~40゜, no blunt edge is left; Grind meti...

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Abstract

The invention discloses a single-side welding and double-side forming welding method for a ceramic gasket, and belongs to the welding field of material processing engineering. The method comprises the following steps of (1) treatment of grooves of abutted plates; (2) installation of the plates, and spot-welding fixing; (3) adding of the ceramic gasket; (4) baking for dehumidifying; (5) groove welding. The method does not need to carry out the operation that the welds of the back side are subjected to cleaning and welding operations after the structure is turned over, after the welds of the front side are welded, the double-side forming effect is directly realized, and the required matching of hoisting equipment and the required man-hours during turnover of the structure are reduced. The number of welds is reduced, and the operation of overhead welding positions is avoided. Therefore, the labor strength of workers is reduced, the welding difficulty is reduced, the production efficiency is greatly improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of welding in material processing engineering, and in particular relates to a welding method for single-side welding and double-side forming of a ceramic liner. Background technique [0002] For the welding of thin plate structures with a plate thickness less than 6mm, if the welding process method of single-sided welding and double-sided forming is adopted as a whole, it will theoretically cause large welding deformation, and it is difficult to correct pyrotechnics. At present, in structures with plate thickness less than 6mm, all butt welds are constructed by V-groove double-sided symmetrical welding. According to the actual welding effect, this process mainly has the following problems: [0003] 1. When some products have to be constructed in the field, the production conditions are poor, and there is no large-scale lifting equipment to cooperate with the return of its structure, so it is difficult to re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/035B23K9/235B23K9/16
Inventor 张武钧
Owner 中船桂江造船有限公司
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