Can not be welded. Not be able to weld the reason: red copper welding rod is also known as copper welding rod, copper welding rod welding iron side of the formation of brittle substances resulting in welding of iron and copper links no toughness to speak of, the strength of the weld will be relatively poor, and easy to weld layer off.
Iron and copper welding methods:
One, the solution to the welding of copper and iron can be brazed welding, through the tin brass or iron brass gas welding, with borax welding, or with the silver phosphorus copper welding rods with 201-F solder paste welding.
Two, to solve the copper and iron welding can also be used in the way of DC argon arc welding welding, through the Wei Ou Ding 204 copper argon arc welding wire as filler, high-purity argon gas protection welding.
Welding process, the workpiece and the solder melts or does not melt, the formation of direct material connection weld. This process also usually requires the application of pressure to join the weldments.
Extended information:
Fusion welding is a method of completing a weld without applying pressure by heating the workpiece interface to a molten state during the welding process. Melt welding, the heat source will be welded two workpiece interface quickly heated melting, forming a molten pool. The molten pool moves forward with the heat source, forming a continuous weld after cooling and connecting the two workpieces into one.
In the welding process, if the atmosphere and the high temperature of the molten pool in direct contact, the oxygen in the atmosphere will oxidize the metal and various alloying elements. Atmospheric nitrogen, water vapor, etc. into the molten pool, but also in the subsequent cooling process in the weld to form pores, slag, cracks and other defects, deteriorating the quality and performance of the weld.
In order to improve the quality of welding, people have developed a variety of protection methods. For example, gas shielded arc welding is the use of argon, carbon dioxide and other gases to isolate the atmosphere to protect the welding arc from oxidation, to avoid the formation of deficiencies; another example of steel welding, in the electrode flux skin to add to the oxygen affinity of titanium and iron powder deoxidization, you can protect the electrode in the beneficial elements of manganese, silicon, etc. from oxidation into the molten pool, after cooling to obtain a high-quality weld.
Improve the reliability of the welding power supply, quality stability and control, as well as excellent kinetic, is also focusing on the subject of research. Development and development of high-performance welding machine with adjustable arc movement, wire feeding and torch attitude, can detect the weld bevel opening, temperature field, molten pool state, melt-through situation, timely provision of welding specification parameters, and should actively develop the welding process computer simulation technology.