The aluminum honeycomb core is made of aluminum foil and special aluminum honeycomb node glue in the production line of aluminum honeycomb core. The factors that affect the performance of aluminum honeycomb core include aluminum foil, node glue and honeycomb core specifications.
1. aluminum foil
Aluminum foil should be selected 3003/5052H18 grade, strict surface treatment process, in the strength or durability requirements of high products, should be careful to use 1100 pure aluminum foil processing aluminum honeycomb core material.
2. node glue
Epoxy modified high temperature curing adhesive should be used in the adhesive, which not only can provide enough bonding strength, but also has excellent environmental resistance and high and low temperature resistance. Because of low strength, universal adhesive tends to make aluminum honeycomb core degumming, resulting in overall failure and instability.
The joint strength of aluminum honeycomb core is the main basis for the evaluation of its performance, the joint strength data should be more than 2.0N/mm.
(see aviation industry standard of People's Republic of China Aerospace Industry Department, HB5443-90) specification for durable aluminum honeycomb core materials for sandwich structures
Specification for 3. aluminum honeycomb core
The size of aluminum honeycomb core is determined by the thickness of aluminum foil and the size of honeycomb hole. The aluminum honeycomb with different specifications has different density and different mechanical properties, and the cost is also greatly different.
