The technical characteristics of glue bonding mainly include the following aspects:
Wide range of applications: Glue bonding technology is suitable for the connection of various inorganic or organic, soft or hard, brittle or tough materials, especially heterogeneous materials, sheet materials and honeycomb structures. Other connection methods such as welding and riveting are difficult to apply on these materials.
Uniform stress distribution: Glue bonding is evenly distributed on the bonding surface through the adhesive, avoiding stress concentration problems caused by welding, riveting and other methods, thus improving the fatigue life of the structure. For example, after the helicopter rotor adopts an adhesive structure, its service life is significantly improved.
Reducing mass: Glue bonding can eliminate the need for rivets and screws, or because the glued parts are evenly stressed, thin-walled structures are allowed, thus effectively reducing the overall mass. For example, the mass of a heavy bomber was reduced by 34% after using bonding.
Good sealing performance: The adhesive joint has good sealing performance and is suitable for high-speed vehicles that require streamlined shape, such as aircraft and missiles. It can effectively prevent the penetration of water, air or other environmental media.
Simple process: The bonding process does not require complex process equipment, is easy to operate, is not prone to deformation, and the joint stress is evenly distributed. Glued joints have good sealing, electrical insulation and corrosion resistance.
Multi-functionality: The use of functional adhesives can give the joints various special functions, such as rapid curing, moisture resistance, insulation, electrical conductivity, magnetic conductivity, etc..
Significant economic benefits: Glue bonding can shorten the product production cycle, improve product quality, and reduce production costs. According to statistics, every ton of adhesive used can save 5 tons of metal materials and 5,000 to 10,000 labor costs.
