Article
Wire rods include low carbon steel wire rods, medium and high carbon steel wire rods. It is an economical and efficient steel material with high tensile strength and yield strength, good plasticity, and low relaxation performance. It is mainly used as a blank for wire drawing and is also widely used in the construction of cement products, bridges, nuclear power plants, high-rise long-span buildings, highways, etc. If butt joints are required, high-quality joints must be obtained. For low- and medium-carbon steels, we generally use resistance butt welding machines, while for high-carbon steels, we use resistance butt welding machines.Flash butt welding machineCome and weld.
Welding points: 1) Aluminum, chromium, silicon, molybdenum and other elements in steel are prone to generate high melting point oxides. We need to use high current for a short time and speed up the upsetting speed in order to quickly squeeze out or flash off the oxides.
2) As the content of alloy elements increases, the high-temperature strength becomes stronger, and we need to increase the upsetting force.
3) For pearlitic steel, the alloy elements increase and it is easy to quench. We must take measures to prevent quenching embrittlement.
The welding characteristics of low alloy steel are similar to those of medium carbon steel and are easy to harden. We also need post-weld heat treatment. This type of steel has strong strength at high temperatures and contains many oxides. It requires larger upsetting force and faster flash and upsetting speeds.
In addition to the characteristics of high carbon steel, high carbon alloy steel also contains a certain amount of alloying elements. Due to the high carbon content, wide crystallization temperature range, and long semi-melted zone at the interface, if the upsetting force is insufficient and the amount of plastic deformation is insufficient, the oxides will easily remain in the semi-melted zone and form a loose structure, thus failing the test.
Wuxi Xinxing Welding Equipment Factory has been engaged in resistance welding for 29 years. Its core technical products include: semi-automatic butt welding machine, pneumatic-flash butt welding machine, multi-strand wire welding machine, foot pedal spot welding machine, pneumatic spot welding machine, medium frequency spot welding machine, row welding machine and mesh welding machine, Resistance automatic welding machine, energy storage welding machine, copper rod and aluminum rod disc circular welding machine, auto parts spot welding machine, sheet metal spot welding machine, home appliance hardware spot welding machine, small electrical appliance spot welding machine, copper row copper pipe welding machine, nut spot welding machine, stainless steel welding machine, foil belt spot welding machine,Aluminum spot welding machine, multi-head spot welding machine, bag cage spot welding machine, mesh welding machine, ton barrel frame welding production line, resistance automatic welding machine, brazing machine, diffusion welding machine, projection welding machine, seam welding machine, wire and cable optical cable supporting equipment, etc., reaching more than 300 types. If you are interested in our welding equipment, please contact us.