The main factors affecting the performance of aluminum honeycomb coreThe main factors affecting the performance of aluminum honeycomb core
The aluminum honeycomb core is manufactured on the aluminum honeycomb core production line by aluminum foil and special aluminum honeycomb node glue. The factors affecting the performance of aluminum honeycomb core materials mainly include parameters such as aluminum foil, node glue and honeycomb core specifications.
1. Aluminum foil
The aluminum foil should be 3003/5052 grades, and the processing should be strictly surface treated. In products with higher strength or durability requirements, the aluminum honeycomb core material made of 1100 pure aluminum foil should be used with caution.
2. Node glue
The node glue should be epoxy modified high temperature curing glue, which can not only provide sufficient bonding strength but also has excellent environmental resistance and high and low temperature resistance. Common adhesives tend to degummed the aluminum honeycomb core due to their low strength, causing overall damage and instability.
The node strength of the aluminum honeycomb core is the main basis for evaluating its performance, and the node strength data should be ≥2.0N/mm.
(Refer to the Aviation Industry Standard of the Ministry of Aerospace Industry of the People's Republic of China HB5443-90 "Specifications for Durable Aluminum Honeycomb Core Materials for Sandwich Structures")
3. Aluminum honeycomb core specifications
The specifications of the aluminum honeycomb core are determined by the thickness of the aluminum foil and the size of the honeycomb cell. Different specifications of aluminum honeycombs have different densities and different mechanical properties, and there are also large differences in their cost.
Aluminum honeycomb core specifications can be expressed in two ways: the diameter of the inscribed circle of the honeycomb cells (in British units) and the thickness of aluminum foil/cell side length (metric units). my country's national standard is expressed in terms of aluminum foil thickness/cell side length.