Cathodic protection and cable aluminum heat flux, heat welding aluminum mold, aluminum hot spot guns, fire pink 
 Cathodic protection cable model heat flux welding of aluminum powder, copper tin solder powder composition 

 Heat welding is the use of aluminum oxide and aluminum metal exothermic reaction between the superheated molten metal produced by heating the metal to be achieved with the method. 
 This welding process in the first commercial application can be traced back to the late nineteenth century Germany, when the reduction of iron oxide was used to make aluminum castings and repair broken castings. Later, the gradual promotion of this process applied to copper bus connections between the rails, power grounding system and the cathodic protection field. 
 The welding process is simple, requires no external power supply and heat, and welding, low cost, reliable quality, very suitable for field cables and other metal components of the welding operation, the instructions involved in cathodic protection system is suitable for copper during the installation welded steel or copper cable between the cable connection. 

 Thermite welding 
 Hot welding of aluminum Introduction 

 Heat welding is the use of aluminum oxide and aluminum metal between the heat generated by exothermic reaction of molten metal to heat the metal and the realization of the method of combining. 
 Thermite welding was founded in the late 19th century, when the H. Goldschmidt aluminum and metal oxides can be found in the external heat source to start with exothermic reaction, and can be self-sustaining once the reaction, the reaction of the general formula: 
 Metal oxide + aluminum (powder) → aluminum oxide + metal + heat 
 Mainly for welding aluminum heat welding copper, brass, bronze, copper, copper clad steel, iron, stainless steel, wrought iron, galvanized steel, cast iron and so on. 

 Thermite welding characteristics and advantages 
 ? weld current flow and wire cut-off equal; 
 ? weld is permanent and will not loose or corrosion caused by high resistance; 
 ? the same as copper weld, and more resilient than the copper itself, and not the product of corrosion; 
 ? weld can withstand repeated big surge (fault) current without degradation; 
 ? Welding is easy and simple, easy to use; 
 ? device lightweight, easy to carry; 
 ? When soldering, no external power or heat source; 
 ? From the exterior will be able to verify the quality of welding; 
 ? can be used for welding copper, copper alloys, copper steel, alloy steel, including stainless steel and high resistance of various heating source material. 
 ? 
 Hot welding of the main points of aluminum 

 One of the factors that welding effect 
 A good solder joint surface full bright, no porosity, slag, cut its profile as a whole after the pore and defect-free. The effect of the welding is the main reason for moisture or water vapor, due to the mold, solder powder and can be welded in both the physical adsorption of water, how to prevent or get rid of water vapor, is the welding of the most important steps must be taken. 
 Another factor is the effect of welding mold and the cleanliness of welded materials, such as the welded surface dust, grease, oxide or other attachments must be removed to make it clean and bright after the welding operation can be conducted, or after welding the conductivity of solder joints and mechanical performance will be affected. If the mold does not completely remove the residues left behind, it will cause solder joint surface is not smooth, not shiny. 
 To sum up, pay attention to key points: 1, get rid of water vapor (available blowtorch baking), 2, cleaning of welding material, 3, cleaning mold 
 2 solder powder application notes 
 (1), each packet corresponds to a solder powder solder joints, solder powder brands need to correspond with the mold, carefully controlled to be confirmed before use. 
 (2), solder powder factory has been taken for its moisture-proof layers of protection, but suggested that keep to avoid moisture. 

 Aluminum heat welding connection with the preparatory work before 
 ? Each time before starting to use heat tools (blowtorch or dry box) baking dry and mold, get rid of water vapor. 
 ? After each use, clean the mold, with a soft brush or other soft items to prevent damage to the mold. 
 ? Check the mold contact surface adaptation, to prevent the operation of copper out of solution leaking from the cracks. 
 ? module folder is used for opening and closing of the mold, mold tightness folder influence on the effect of welding, please carefully check the model before welding folder, and make appropriate adjustments. 
 ? molds made from graphite, is relatively weak, can not afford to throw rejection and strong impact, it is not beyond the die size will be forced into the mold of welding materials, or use hard materials and tools to remove debris. 
 ? Mould life in general up to 50-100 times. 

 ? Aluminum heat welding applications 

 Thermite welding for cathodic protection, electric power, ground, rail and other industries connected conductor 
 ? Aluminum heat flux 
 No. Name Specification (g) Model Material composition 
 An aluminum heat flux 10 HL-10 
 2 aluminum heat flux 15 HL-15 
 3 aluminum heat flux 20 HL-20 
 4 aluminum heat flux 30 HL-30 

 Thermal welding of aluminum die 
 No. Name Specification Material composition 
 An aluminum heat welding die 10 YHL-10 Graphite 
 2 aluminum heat welding die 15 YHL-15 Graphite 
 3 aluminum heat welding 20 DHL-20 graphite mold 
 4 aluminum heat welding die 30 THL-30 Graphite