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Some workpieces need to be annealed after flash butt welding. What is annealing?
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Some workpieces need to be annealed after flash butt welding. What is annealing?
Release time:2022.06.05
Summary of information:
The main workpieces that need to be annealed after flash butt welding are ferroalloys, high carbon steels, manganese steels, stainless steels, etc. This is related to the structure of the materials after high temperature welding. The main function of annealing is to reduce the hardness, facilitate cutting and processing, eliminate the internal stress of the metal, stabilize accuracy, and resist deformation and cracks. Make the grains fine and group
Flash butt welding machine diagram
Resistance butt welding andflash butt weldingThe main workpieces that need to be annealed afterwards are ferroalloys, high carbon steels, manganese steels, stainless steels, etc. This is related to the structure of the materials after welding at high temperatures. The main function of annealing is to reduce the hardness, facilitate cutting and processing, eliminate the internal stress of the metal, stabilize accuracy, and resist deformation and cracks. Make the grains fine and the organization tight to reduce defects.
Annealing is a heat treatment process in which metal is heated to a certain temperature, kept at this temperature for a period of time, and then slowly cooled to room temperature.
Annealing methods include complete annealing, incomplete annealing, isothermal annealing, homogenizing annealing, spheroidizing annealing, stress relief annealing, etc. There are three commonly used methods: complete annealing, spheroidizing annealing and stress relief annealing.
1. Heating the metal to a predetermined temperature, keeping it warm for a period of time, and then slowly cooling it in the furnace is called complete annealing.
2. Heat the steel to 750 degrees, keep it warm for a period of time, slowly cool it to 500 degrees, and finally cool it in the air called spheroidizing annealing. The purpose is to reduce the hardness of the steel and improve the cutting performance. It is mainly used for high carbon steel.
3. Stress relief annealing is also called low-temperature annealing. The steel is heated to 500~600 degrees, kept warm for a period of time, slowly cooled in the furnace to below 300 degrees, and then cooled to room temperature. The structure does not change during the annealing process, and the internal stress of the metal is mainly eliminated.
Wuxi Xinxing Welding Equipment Factory has been engaged in resistance welding machines 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 Machine, row welding machine mesh welding machine, resistance automatic welding machine, energy storage welding machine, copper rod aluminum rod disc circular welding machine, auto parts spot welding machine, sheet metal parts 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 strip spot welding machine, aluminum spot welding machine, multi-head spot welding machine, bag cage spot welding machine, mesh welding machine, ton rack 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 kinds. If you are interested in our welding equipment, please contact us.
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Butt welding of wire rope
Summary of information:
Wire rope is mainly used for lifting, pulling, tightening and carrying purposes such as electric hoists, winches, cranes, elevators, airplanes, ships, cable cars, ropeways, etc. During twisting, if the wire is broken or two wires need to be pulled through the mold, quick butt jointing is required. Nowadays, resistance butt welding machines and medium frequency butt welding machines are mainly used for welding. Welding points
Wire rope is mainly used for lifting, pulling, tightening and carrying purposes such as electric hoists, winches, cranes, elevators, airplanes, ships, cable cars, ropeways, etc. During twisting, if the wire is broken or two wires need to be pulled through the mold, quick butt jointing is required. Nowadays, resistance butt welding machines and medium frequency butt welding machines are mainly used for welding.
Welding points:
1. Use high current for short time and hard specification to weld
2. Using the casing method, it is formed in one go, without burrs, without grinding and polishing, and it is easy to pass through the line mold or pressure tile.
3. In order to avoid hardening, annealing is required after welding to eliminate stress and enhance toughness.
4. The joint distance of steel wires in important-purpose steel wire ropes shall not be less than 10 m; the joint distance of steel wires in general-purpose steel wire ropes shall not be less than 5m.
5. When re-docking is required, the annealed section should be cut off and then re-docking.
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 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 appliances There are more than 300 types of spot welding machines, copper bar copper tube welding machines, nut spot welding machines, stainless steel welding machines, foil strip spot welding machines, aluminum spot welding machines, multi-head spot welding machines, bag cage spot welding machines, mesh welding machines, ton rack welding production lines, automatic resistance welding machines, brazing machines, diffusion welding machines, projection welding machines, seam welding machines, wire and cable optical cable supporting equipment, etc. If you are interested in our welding equipment, please contact us.
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