What are the main factors that affect the performance of aluminum honeycomb core?

Aluminum honeycomb core is made of aluminum foil and special aluminum honeycomb node glue on the aluminum honeycomb core production line. The factors affecting the performance of aluminum honeycomb core mainly include aluminum foil, node adhesive and honeycomb core specifications and other parameters.

1. aluminum honeycomb core specification

Aluminum honeycomb core specifications are determined by the thickness of aluminum foil and the size of honeycomb cells. Different specifications of aluminum honeycomb have different densities and different mechanical properties, and their cost also varies greatly. For example, the cost gap between special honeycomb core and microporous honeycomb core for composite panels of common specifications can reach several times. Aluminum honeycomb core specifications can be expressed in two ways: the diameter of the inscribed circle of the honeycomb cell (English units) and the thickness of the aluminum foil/cell side length (metric units). China\'s national standard is expressed in terms of the thickness of the aluminum foil/cell side length.

2. node glue The nodal adhesive should be epoxy modified high temperature curing adhesive, which not only provides sufficient bonding strength but also has excellent environmental resistance and high and low temperature resistance. The general adhesive is often easy to make aluminum honeycomb core degumming due to low strength, resulting in overall damage and instability. The node strength of aluminum honeycomb core is the main basis for evaluating its performance, and its node strength data should be ≥ 2.0N/mm. (See Aviation Industry Standards, Ministry of Aerospace Industry, the People\'s Republic of China HB5443-90 Specification for Durable Aluminum Honeycomb Core for Sandwich Structures)

3. aluminum foil Aluminum foil should be selected 3003 or 5052 grades, the processing process should be strictly surface treatment, in the strength or durability requirements of high Products, should be careful to use 1100 pure aluminum foil processing of aluminum honeycomb core material.