The biggest advantage of explosive welding is that it can weld dissimilar metals together. Even if some special methods are used to weld them together, the welding quality is difficult to guarantee. However, explosive welding can do this, and the strength of the welding interface is often greater than that of the base metal. This is unmatched by other welding methods. At present, the explosive welding combinations commonly used in engineering are: copper-steel, aluminum-steel, copper-aluminum, titanium-steel, stainless steel-steel, nickel-steel, silver-copper, lead-steel and bimetallic or Multi-metal composite plates, etc. Another advantage of explosive welding is that large-area welding can be performed, and the welding integrity rate can reach more than 98%. Explosive welding can not only weld flat plates, but also weld metal pipes with outsourcing or inner welding, that is, on the inner wall or outer surface of a metal pipe of a certain material, a thin metal pipe of another material is welded. Such as tube-tube welding of copper tube and steel tube, steel tube and titanium tube, titanium tube and copper tube, hard aluminum tube and soft aluminum tube.
Explosive welding has become a brand-new process technology and has been widely used in the engineering field. For example, in the electrolytic aluminum industry, it is necessary to input a large amount of electric energy into the steel electrodes in the electrolytic cell through aluminum or copper wires. Explosively welded joints made of aluminum-steel or copper-steel are a good measure to save electric energy, because The resistance on the aluminum-steel interface of explosive cladding is almost equal to zero. The joints of electrolyzers in more advanced aluminum factories in China mostly use explosive welding, but now some aluminum factories still use the old process, that is, crimping with screws, which consumes a lot of energy. According to statistics, an aluminum smelter with an annual output of 100,000 tons used to consume 800 million kWh of electrical energy on such joints. In terms of chemical equipment, if all kinds of reactors are exposed to corrosive liquids or gases, a piece of equipment is sometimes scrapped due to corrosion in less than half a year, or even less than half a month.If an explosive composite container is used, the lifespan can be extended several times. Composite plates are even used in the shipbuilding industry to build small ships. Because the copper-nickel alloy surface has excellent resistance to seawater corrosion, and has a good ability to resist the adhesion and formation of shellfish marine organisms. Thereby greatly improving the speed of the ship and the long-term operation time at sea. In some electronic technology departments, materials are required to have the properties of multiple alloys, so it is required to develop the technology of explosive compounding of 3-layer, 4-layer, 5-layer and multi-layer metal or alloy. This greatly expands the performance and application range of existing metals and alloys. The applications and advantages of explosive compounding abound.
We believe that as a new technology, explosive compounding will continue to expand and deepen its application in the future, and make new contributions to the development of my country's national economy and the improvement of people's lives.
Baoji Taicheng Clad Metal Materials Co., Ltd is a professional metal composite plate manufacturer. It can provide various high-quality metal composite plates and services for domestic and foreign buyers. Welcome to consult and cooperate!
