Welding method of copper cooling stave without preheating
A welding method and stave technology, applied in welding equipment, welding accessories, arc welding equipment, etc., can solve problems such as the difficulty of welding large copper pieces, and achieve the effects of promising application prospects, strong operability, and high welding quality
Inactive Publication Date: 2020-11-20
XINJIANG BAYI IRON & STEEL
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Problems solved by technology
[0004] The purpose of the present invention is to provide a welding method that does not require preheating to weld copper staves, which can solve the problem of difficulty in welding large pieces of copper
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0008] A welding method that does not require preheating to weld copper staves. Helium arc welding is used to weld copper staves and red copper. It can be successfully welded without preheating the weldment. The welding machine is WSE-500S, and the welding wire is HS201. Flux selection HJ301, using water-cooled argon arc welding torch.
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The invention discloses a welding method of a copper cooling stave without preheating. The copper cooling stave and red copper are welded by adopting heliarc welding, welding can be successfully performed without preheating a weldment, a welding machine is WSE-500S, a welding wire is HS201, a welding flux is HJ301, and a water cooled argon arc welding gun is adopted. The method for welding large red copper is simple and practical, the weldment does not need to be preheated, the welding surface does not need to be specially treated, and only the welding position needs to be polished to generatemetallic luster. The welding method has the advantages of wide applicability, high welding quality, attractive appearance in forming of a welding seam and high operability during daily overhaul and maintenance.
Description
technical field [0001] The invention relates to a welding method for copper staves without preheating. Background technique [0002] Helium arc welding is a kind of gas shielded welding that uses tungsten electrode as the electrode material, and uses the helium gas sprayed from the nozzle to form a closed protective airflow around the arc between the electrode and the workpiece, so that the tungsten electrode wire and the welding body will not be oxidized. Way. Helium arc welding has the following advantages: Because helium is an inert gas, it does not decompose at high temperature, does not react with the weld metal, and is insoluble in liquid metal. It is a high-quality welding method with the best gas protection effect. The ionization potential and thermal conductivity of helium are significantly higher than that of argon, which makes the thermal power of helium arc welding on the weldment nearly double that of argon arc welding under the same current conditions. Helium...
Claims
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Login to View More IPC IPC(8): B23K9/173B23K9/32
CPCB23K9/173B23K9/32
Inventor 苏本现李大斯
Owner XINJIANG BAYI IRON & STEEL