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Exothermic welding powder is a simple, high-efficiency, high-quality metal joining process that utilizes the chemical reaction heat of a metal compound as a heat source, through superheated (reduced) molten metal, directly or indirectly heated, in a special graphite mold A welded joint with a certain shape and size in accordance with engineering requirements is formed in the welding chamber. At present, exothermic welding has generally replaced the mechanical and physical connection methods between metals in the past. Many international standards recommend the use of exothermic welding processes in grounding systems, such as IEEE, IEC, NEC, ASME, etc.
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Exothermic welding reaction principle
3Cu2O+2AL—6Cu+Al2O3+Heat(2537℃)
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Performance Of Exothermic welding Powder
Serial NoTechnical contentTechnical Parameters1 Powder Content The flux contains 75-82% copper oxide and 18-25% catalyst. The welded joint is more resistant to corrosion than the conductor itself, and does not contain phosphorus or magnesium. It is non-toxic and harmless. 2 Production Technique Automated filling system with high consistency of filling ingredients 3 Service life Different to general products, the wet environment has little impact on product performance, and the material loss rate due to waste is extremely low, and the theoretical life is indefinite.
Packing Method
Bag Packing
Bottle Packing 
Drum Packing 
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about us
Our Story
Xinchang TuAn Machinery Co., Ltd.Rooted in the past, facing the future?
Based on customer needs, connect the products and technologies required by customers with the scientific research capabilities of universities to achieve innovation based on customer needs.
TuAn is famous China exothermic welding powder manufacturers and exothermic welding powder factory, the company continuously strengthens cooperation with upstream and downstream enterprises, rapidly expands comprehensive service capabilities, and transforms from a single lightning protection enterprise to a comprehensive large-scale project supporting enterprise. After years of accumulation, TuAn has formed a stable customer base covering important fields such as petroleum and petrochemical, high-speed rail, and electric power.
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