Vacuum brazing is widely used in honeycomb structures as sealing components of various types of aero engines. The brazing process of the honeycomb structure is to pre-set the brazing material in the honeycomb core, then assemble the honeycomb and the shell, and finally adopt the vacuum brazing method For brazing, the strength of the brazed joint is about 50% of the base material. The grouped stator blades of the aero-engine compressor are also manufactured by this brazing method. It consists of inner and outer rings and more than 10 blades connected by vacuum brazing. overall. In addition, vacuum brazing is also used in the manufacture of turbine guides, guide vanes, diffusers, flame tubes, oil filters, and other components in aero engines.
The AMB (active metal brazing) process is a further development of the DBC process technology. It uses a small number of active elements Ti and Zr contained in the brazing filler metal to react with the ceramic to form a reaction layer that can be wetted by the liquid brazing filler metal. A method of joining. It not only has higher thermal conductivity and better copper layer bonding but also has the advantages of smaller thermal resistance and higher reliability. It is more suitable for the preparation of ceramic copper-clad substrates for IGBT module packaging in electric vehicles and power locomotives. Especially in important fields such as wind energy, solar energy, heat pump, hydropower, biomass energy, green building, new energy equipment, electric vehicle, rail transit, etc., the rapid development of power electronics technology will form a huge impact on the key material of IGBT module packaging - ceramic copper clad laminate. need.
Brazed diamond tools are divided into two types: Surface inlay and impregnation. The surface inlay tool is to directly braze the diamond on the surface of the substrate. The impregnated tool is to sinter diamond and other materials into a composite diamond composite. The sintering process is essentially diamond. Diffusion brazing process with the base material. The brazing of diamond tools is divided into three categories: single-layer diamond tool brazing, diamond bit brazing, and PDC composite brazing. It has been widely used in stone tools, woodworking tools, aerospace, and military industries.
Vacuum brazed plate-fin oil coolers are used in cars and boats. Plate-fin oil cooler has the characteristics of high heat transfer efficiency, compact structure, and lightweight. It is a replacement product for today's diesel engine coolers and has been widely used in automobiles, tractors, marine diesel engines, and other fields.
The use of vacuum brazing technology for the impeller in the air separation equipment greatly improves the manufacturing precision of the impeller with narrow flow channels, thus not only ensuring the design performance indicators but also reducing the manufacturing cost and shortening the production cycle.