Process for producing brazing hot rolled metal composite plate adopting composite cog

Abstract

The invention discloses a method for producing braze metal sandwich by compound compact, which comprises the following steps: ensuring the size of the basal layer and the composite layer, surface processing, making embryo, vacuum-pumping, hot-rolling, finishing and separating. The method can produce metal sandwich by present medium hot-rolling mill, and the sandwich has good mechanical property, non-corrodibility and reprocessing property, the bonding strength of two metal layers is high, and the shearing intensity can reach to 210MPa-350MPa, so the method can be used widely in producing the metal sandwich and roll bending.

Description

technical field [0001] The invention relates to a manufacturing technology of a metal composite plate, in particular to a method for producing a brazing hot-rolled metal composite plate by using a composite billet. Background technique [0002] The application of metal clad steel plates and clad coils is mainly based on the purpose of economy and resource conservation, as well as special uses on various equipment. For example, it is more reasonable to use stainless steel plates for pressure vessel plates that require corrosion resistance, but the cost is high. If the same pressure vessel plate is made of a composite plate made of ordinary carbon steel plate and stainless steel plate, the thickness of the stainless steel plate It is only 2-10% of the overall thickness, which not only satisfies the anti-corrosion performance and high enough strength of the container, but also greatly reduces the cost. In addition, some metal materials with excellent heat resistance, corrosion...

AI Technical Summary

Problems solved by technology

For example, it is more reasonable to use stainless steel plates for pressure vessel plates that require corrosion resistance, but the cost is high. If the same pressure vessel plate is made of a composite plate made of ordinary carbon steel plate and stainless steel plate, the thickness of the stainless steel plate Only 2-10% of the overall thickness, which not only meets the corrosion resistance and high enough strength of the container, but also greatly reduces the cost

In addition, some metal materials with excellent heat resistance, corrosion resistance and electrical and thermal conductivity, such as copper, manganese, titanium or chromium, have the problem of scarcity of resources. If double-layer or multi-layer composite boards are used, it will not only help save Resources, can also meet the special needs of many projects

[0003] At present, the production of metal composite panels is mainly made by blasting method. The disadvantages are: the joint surface between the base metal and the cladding metal is physically combined, and its bonding strength is low. Therefore, the post-processing performance of the composite panel is poor and cannot be processed. Bending, folding, welding, pressing and other processing

A kind of metal composite brazing filler metal of Chinese patent (patent No. ZL94108021.7) discloses a kind of brazing filler metal formula for metal cladding, on this basis, the inventor of the present application has proposed the method utilizing this brazing filler metal recipe to produce metal clad plate, However, there are many special equipment, large investment in equipment, and the inability to produce clad plates in ordinary medium-sized rolling mills. After years of hard work, the inventor has developed a new method for producing metal clad plates using the solder. Weld metal clad slabs and then roll metal clad slabs of various specifications through ordinary medium-sized rolling mills

Images