Can exothermic welding meet the requirements for use in high temperature, high pressure or high strength environments?

Exothermic welding is a technique for metal connection that generates a large amount of heat through chemical reactions. This welding method is widely used in many fields due to its high efficiency, simplicity and reliability, especially in places where durable connections are required. However, whether exothermic welding can meet the requirements of use in high temperature, high pressure or high strength environments is still the focus of many industry users.
The connection points of exothermic welding usually have high strength and can withstand certain mechanical stress. During the exothermic welding process, the heat generated by the reaction is sufficient to completely melt the metal and form a solid joint. This process usually ensures that the weld has good physical and mechanical properties. Therefore, under ordinary temperature and pressure conditions, the connection of exothermic welding can meet the conventional use requirements, such as metal connections in power equipment, communication facilities and other places.
When it comes to special environments with high temperature, high pressure or high strength, the performance of exothermic welding may be subject to certain restrictions. In high temperature environments, some metal materials have a large thermal expansion coefficient. Although the heat generated by exothermic welding is sufficient to reach the temperature at which the metal melts, the excessively high temperature may cause the connection point to deform or fatigue under the action of thermal stress. This means that the connection point of exothermic welding may gradually lose its stability and reliability under long-term use at extremely high temperatures.
In high-pressure environments, the strength and tightness of exothermic welding are also key considerations. Although the welded joints show strong mechanical properties in the early stage, the welded joints may crack or be damaged due to pressure under long-term high-pressure environments. Especially for some brittle metals, the connection of exothermic welding may not effectively resist long-term high pressure, resulting in rupture or failure of the connection points.
Under high-intensity working conditions, the applicability of exothermic welding also needs to be considered. Although the welded joints of exothermic welding have a certain strength, for structures that bear great forces, especially in some industrial equipment that needs to bear heavy loads, traditional welding methods may provide a more stable connection. In some extremely high-intensity application scenarios, the use of more robust connection technologies, such as arc welding, laser welding, etc., may be more suitable.
Nevertheless, exothermic welding technology still has certain advantages in specific fields, especially in places where the strength requirements for the connection are not extreme and there are no harsh working conditions such as high temperature and high pressure. For example, grounding connections in power equipment, contacts of communication lines, etc., exothermic welding can provide reliable connections and has the characteristics of corrosion resistance and oxidation resistance.