Explosive cladding is often called explosive welding.
Explosive cladding materials can withstand multiple and various forms of pressure processing (such as rolling, stamping, spinning, forging, extrusion and drawing, etc.), mechanical processing (such as cutting, leveling, straightening and forming, etc.), as well as subsequent processing such as heat treatment, welding and explosive forming without delamination and cracking.
Many explosive welding materials become products just after appropriate mechanical processing (such as flat sheeting) and heat treatment (such as annealing). If the blank is subjected to subsequent pressure processing, larger or smaller, longer or shorter, thicker or thinner and special-shaped composite materials can be obtained. For example, by rolling titanium-steel and stainless steel-steel explosion cladding plate, longer, wider and thinner medium plate and thin plate can be obtained.
Explosive composite materials can be double-layered, triple-layered and multi-layered. There are three layers such as titanium-steel-stainless steel, titanium-steel-nickel, stainless steel-steel-nickel, etc. This type of composite material has different surface properties on both sides. Explosive composite materials come in many shapes and forms, such as composite plates, composite strips, composite foils, composite pipes, composite rods, composite wires, composite profiles, composite forgings and composite powders. These composite materials can also be used to make composite parts, composite components and composite equipment.
Explosive cladding is a new technology developed in the past 20 years. It can combine most metal materials to form composite materials with the properties of two or more metals (alloys), thus greatly expanding the performance and application range existing metal (alloys), and can save rare and precious metals.
The main advantages of explosive cladding are as follows:
① It can combine metals with extremely different properties such as melting point, strength, thermal expansion coefficient, etc. For example, For example, it is almost impossible to clad the two metals of aluminum factory steel and lead/steel using other technologies, or even if they are cladded together, the bonding quality is difficult to guarantee. While explosive cladding technology can do it.
② Since the explosive cladding is completed in microseconds, there is almost no diffusion or only a very small degree of diffusion at the bonding interface. Therefore, the generation of brittle metal compounds can be avoided, and the cladding of titanium and steel can be achieved.
③ The engineering application of explosive composite is novel and unique. It has unique advantages in cladding special-shaped parts. For example, it can clad metal pipes from its outer and inner. In addition, there is no limit to the maximum thickness of the base material and can clad multiple layers of materials at one time.