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Welding process

A welding process and positioning welding technology, applied in the field of technology, can solve the problems of far different requirements and methods, poor welding stability and high welding requirements, and achieve the effects of convenient operation, good molding and good stability.

Inactive Publication Date: 2017-06-09
侯霞
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] In the field of welding, different materials to be welded have different requirements on the welding process, and the welding methods used are also different. The requirements and methods are very different. The welding requirements of pipes are higher and more complicated.
In the existing technology, the stern of the ship is connected by thick plates, and it is a round pipe. The ordinary welding method is difficult to weld, does not save time and effort, and the welding stability is poor, and it is very inconvenient to operate.

Method used

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Embodiment Construction

[0013] In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with specific embodiments.

[0014] Welding process of the present invention comprises the following steps:

[0015] 1) Material: welded with electrodes, filled with C0 2 welding wire;

[0016] 2) Cleaning before welding: Before welding, the welding groove of the plate to be welded and the scale, rust, moisture, oil and impurities within 30mm on both sides of the groove must be cleaned;

[0017] 3) Preheating before welding: the preheating temperature is at least 175 degrees Celsius, the heating area in the middle of the welded plate is more than 100 mm away from the weld seam, and the temperature within 100 mm around the weld seam is monitored by a thermometer, and the preheating meets the requirements The final weld should be able to be welded immediately. When the preheating temperature is lowered and cannot meet the requirements, it should be...

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Abstract

The invention discloses a process, in particular to a welding process. The welding process is characterized by comprising the following steps: material taking, pre-welding cleaning work, pre-welding preheating, positioning welding and post-welding treatment. The welding process has the beneficial effects that the steps are simple, the operation is convenient, the time and labor are saved, the safety and reliability are good, the stability is good, air holes and overlaps are avoided, the phenomena of denting and undercutting are avoided, formation is good, defects such as incomplete welding and cracks are avoided, the requirements of intergranular corrosion resistance and embrittlement resistance are completely met, the quality of a welding project is guaranteed, and the working efficiency is greatly improved.

Description

technical field [0001] The invention relates to a process, in particular to a welding process. Background technique [0002] In the field of welding, different materials to be welded have different requirements on the welding process, and the welding methods used are also different. The requirements and methods are quite different, and the welding requirements of pipes are higher and more complicated. In the prior art, the stern of the ship is connected with a thick plate, and it is a round pipe. The ordinary welding method is difficult to weld, does not save time and effort, and the welding stability is poor, and it is very inconvenient to operate. Contents of the invention [0003] The invention proposes a welding process. The welding process aims at the deficiencies of the prior art and provides a welding method with convenient operation, time-saving and labor-saving, good welding effect and high working efficiency. [0004] The technical solution adopted by the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00
CPCB23K37/00
Inventor 侯霞
Owner 侯霞
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