Welding technology

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, inconvenient operation, etc., and achieve the effects of convenient operation, good molding, and simple steps.

Inactive Publication Date: 2016-02-10
刘振宇
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  • Description
  • Claims
  • Application Information

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 should be at least 175 degrees Celsius, the heating area in the middle of the plate to be welded is more than 100 mm away from the weld seam, and the temperature within 100 mm around the weld seam should be monitored with a thermometer, and the preheating can meet the requirements The final weld should be able to be welded immediately. When the preheating temperature is lowered and cannot meet the r...

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Abstract

The invention discloses a technology, and particularly discloses a welding technology. The welding technology is characterized by comprising the following steps of material obtaining, clearing before welding, preheating before welding, positioning welding and postweld treatment. The welding technology has the advantages that the steps are simple, operation is convenient, time and labor are saved, safety and reliability are achieved, the stability is good, gas hole weld beading is avoided, concave and undercut phenomena are avoided, forming is good, non-welding defects, cracks and the like are avoided, the requirements for resisting intergranular corrosion and embrittlement are completely met, welding engineering quality is ensured, 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): B23K9/173B23K9/235B23P15/00
Inventor 刘振宇
Owner 刘振宇
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