Aluminum copper clad metal sheet  is a combination of substrate and the composite material, the combination of main methods of rolling, explosion, explosion and rolling engagement three. Cladding material generally used stainless steel, titanium, aluminum, copper alloys and other materials, mainly to improve the corrosion resistance of the material or the wear resistance.
Aluminum copper clad metal sheet is widely used in petroleum, chemical industry, light industry, metallurgy, electric power and other industrial sectors corrosion-resistant containers, pressure equipment, cylinder and head, usually to save rare and precious materials more than 80%. If used in a variety of switches, a condenser tube sheet, can save 90% or more. At present, our factory production of composite materials are titanium / steel, stainless steel / titanium, stainless steel / steel, aluminum / steel, nickel / steel. Defects in composite materials, the substrate and the main surface of the composite boundary unbound. In the detection process, if there is a pulse signal the beginning of the end of the pulse disappears or defects widened pulse broadening increases forward, then the region for non-bonded area.
Aluminum copper clad metal sheet cladding from one side of the base material sheet or flaw, the probe frequency is 2 ~ 10MHz, probe diameter of 10 ~ 30mm, detection sensitivity is generally the bottom region of the intact wave modulation of 80%.