A kind of preparation method of zirconium/steel composite plate

Abstract

The invention provides a zirconium / steel composite board preparation method which includes the steps: firstly, preparing zirconium / titanium bimetal slabs by explosive welding; secondly, pairwise assembling the zirconium / titanium bimetal slabs and then assembling the zirconium / titanium bimetal slabs; thirdly, removing a welding line after rolling to obtain zirconium / titanium bimetal boards; fourthly, leveling shapes and performing corrosive washing and acid pickling; fifthly, welding the zirconium / titanium bimetal boards in a spliced manner; sixthly, performing explosive welding by taking a steel board as a base layer and taking the acid pickled zirconium / titanium bimetal boards or the splice welded zirconium / titanium bimetal boards as composite layers to obtain a zirconium / steel composite board; seventhly, annealing and leveling the zirconium / steel composite board after air cooling to obtain a finished zirconium / steel composite board. The method is simple, reasonable in design, convenient to operate and high in production efficiency, bonding strength, bonding rate and shear strength, the prepared zirconium / steel composite board has excellent machining property, a bending test bonding interface is not layered, original performances of a zirconium board are not changed, and the corrosion resistance and the fatigue resistance of the zirconium board are not reduced.

Description

technical field [0001] The invention belongs to the technical field of layered metal composite material processing, and in particular relates to a preparation method of a zirconium / steel composite plate. Background technique [0002] Zirconium is a passivation metal, which can react with oxygen in the air at room temperature and form a very dense passivation film on the surface. The alloy has excellent corrosion resistance. At the same time, zirconium has excellent mechanical properties and thermal conductivity, and is suitable for use as pressure vessel shells, heat exchanger tube sheets, tower components, and pipes. Zirconium / steel, zirconium / stainless steel, tantalum / zirconium / titanium / steel composite plates prepared by explosive welding technology not only comprehensively utilize the advantages of zirconium, steel, stainless steel, tantalum and titanium, but also save zirconium resources and reduce equipment cost , It provides a practical and reliable way to meet the s...

AI Technical Summary

Problems solved by technology

[0004] However, when the titanium transition layer is used to prepare the zirconium / steel composite plate, when the zirconium plate is composited on the steel plate with the titanium transition layer by explosive welding, the titanium / steel interface will bear an explosion impact again, which will affect the combination of the titanium / steel interface. It is unfavorable, and in serious cases, there will be no bonding phenomenon; at the same time, due to the increase of the titanium transition layer and the steel explosive welding process, the composite plate needs to be annealed, leveled, and surface treated before the zirconium plate is combined, which significantly increases Composite panels are difficult to prepare, which reduces operability and is not conducive to mass production