Comparison of brazing and special joining technology level with other countries
Release time:
2022-11-16
【Summary Description】 In terms of the development of advanced connection technology and the research of new material connection technology, China has carried out fruitful research work in recent years, which can basically track the world's advanced level. However, compared with the advanced level of foreign countries, there is still a big gap in the basic theory and related numerical simulation technology of brazing and special connection technology, the engineering application of advanced connection technology of new materials, the production and preparation technology of brazing materials, brazing and special connection equipment and control technology. Please describe the development trend and research focus of brazing and special joining. Brazing and related special joining techniques are increasingly used in the manufacture of important load-bearing components and complex components; it plays an important role in the joining of new special materials, and is even the only feasible joining method for certain materials and components. In addition, the integration of brazing and related special connection technology with metallurgy, machinery, electronics, chemical industry, surface engineering, heat treatment, high-energy beam processing and other disciplines can derive many new manufacturing technologies, which is also an important direction for the innovation and development of brazing and related special connection technology. In my opinion, in order to promote the engineering application of advanced materials and their components, in-depth and systematic experimental research should be carried out in the following aspects: 1) Can be used for high-temperature structural parts of ceramics and ceramic and metal connection technology; 2) Connection technology of composite materials (including metal matrix composites, ceramic matrix composites and C/C composites); 3) Intermetallic material connection technology; 4) Connection technology of refractory metal materials; 5) low brittleness brazing technology of titanium alloy; 6) Vacuum brazing technology of heat treatment strengthened aluminum alloy; 7) The application of nanotechnology in brazing and special joining technology. In addition, the research work of basic theory and numerical simulation is still relatively weak, which should be paid enough attention to, and the research intensity and depth should be increased.
In terms of the development of advanced connection technology and the research of new material connection technology, China has carried out fruitful research work in recent years, which can basically track the world's advanced level. However, compared with the advanced level of foreign countries, there is still a big gap in the basic theory and related numerical simulation technology of brazing and special connection technology, the engineering application of advanced connection technology of new materials, the production and preparation technology of brazing materials, brazing and special connection equipment and control technology.
Please describe the development trend and research focus of brazing and special joining.
Brazing and related special joining techniques are increasingly used in the manufacture of important load-bearing components and complex components; it plays an important role in the joining of new special materials, and is even the only feasible joining method for certain materials and components. In addition, the integration of brazing and related special connection technology with metallurgy, machinery, electronics, chemical industry, surface engineering, heat treatment, high-energy beam processing and other disciplines can derive many new manufacturing technologies, which is also an important direction for the innovation and development of brazing and related special connection technology.
In my opinion, in order to promote the engineering application of advanced materials and their components, in-depth and systematic experimental research should be carried out in the following aspects:
1) Can be used for high-temperature structural parts of ceramics and ceramic and metal connection technology;
2) Connection technology of composite materials (including metal matrix composites, ceramic matrix composites and C/C composites);
3) Intermetallic material connection technology;
4) Connection technology of refractory metal materials;
5) low brittleness brazing technology of titanium alloy;
6) Vacuum brazing technology of heat treatment strengthened aluminum alloy;
7) The application of nanotechnology in brazing and special joining technology.
In addition, the research work of basic theory and numerical simulation is still relatively weak, which should be paid enough attention to, and the research intensity and depth should be increased.
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