Welding exothermic graphite mould
Advantages of exothermic welding
1. Exothermic welded joints are connected by molecular fusion without loosening and aging
2. High temperature pure copper liquid welding, no contact surface, strong corrosion resistance
3. Different metal materials can be welded, and the welding point is firm and reliable
1. Easy to carry, no need for external heat source, suitable for operation in various places
2. The welding speed is fast, the reliability is good, and the manpower and material resources can be saved.
3. The connection method is simple, easy to operate, and does not require skilled welding workers
4. The appearance of the joint is beautiful and consistent, and the quality is easy to control
Our company specializes in the production and sales of graphite, Cummins generator sets, graphite products, pipe jacking, graphite crucible, Changzhou epoxy floor, oil seal equipment.
Exothermic welding principle:
Exothermic welding is a new welding method that generates liquid high-temperature copper liquid and aluminum oxide residue through the chemical reaction (exothermic reaction) between copper oxide and aluminum, and uses the high temperature generated by exothermic reaction to achieve high-performance electrical welding. It can make high-temperature copper liquid form a certain welding node in the special graphite abrasive cavity. So that the metal material achieves molecular fusion. It is the best method for welding the same and different metal conductors.
Fusion chemical reaction equation: 3cu2o + 2Al ----- & gt; 6cu + Al2O3 high temperature (2537 ° C)
Characteristics of exothermic welding point:
1. The connection point is molecular binding, without mechanical pressure, relaxation or corrosion
2. It has a large heat dissipation area and the same current carrying capacity as the conductor.
3. The melting point is the same as the conductor, so it can withstand the impact of large current without fusing.
Dongguan exothermic welding graphite mold manufacturer, Dongguan exothermic welding graphite mold production, Dongguan exothermic welding graphite mold processing
Various graphite thermal fields for single crystal and polycrystalline furnaces, heaters, three piece crucibles, thermal insulation covers and other graphite products.
*Various vacuum sintering furnaces, heat treatment furnaces, quenching furnaces, intermediate frequency furnaces, carbon tube furnaces, zinc furnaces and other high-temperature furnace heating elements, graphite boats, plates, carbon tubes, crucibles and other graphite products
*Graphite ring, graphite chute, graphite plate, graphite rotor and other graphite products for non-ferrous metals.
*Various graphite carburizing agents and heat preservation agents for iron and steel casting.
*Thermal insulation carbon felt, graphite felt, graphite rope for various high-temperature furnaces, and graphite coating for boat coating and demoulding.
*Various graphite molds used in the electric spark industry.
*Tungsten carbide, cobalt powder, nickel powder and other metal powders used in the cemented carbide industry, cobalt oxide and cobalt oxalate powder used in the ceramic and pharmaceutical industries.
