Detailed explanation of the factors affecting the peel strength of aluminum honeycomb panels

Aluminum honeycomb panel is a more common composite materials, especially some building exterior decoration materials, because of its unique advantages are favored by many consumers, with the advantages of general composite materials do not have, but if improper processing, will lead to spalling phenomenon, there are many factors that cause this phenomenon, what factors affect the peeling strength.

1. aluminum honeycomb panel adhesive.

1. Products produced by polyurethane materials and epoxy resin room temperature curing adhesives have low adhesive strength and poor aging resistance. After one year of use, the adhesive performance is greatly reduced. The Products produced by this process are not suitable for outdoor use, but can be used for indoor decorative design baffle.

2. The product produced by the processing technology has low bonding strength, good bonding performance, and good aging resistance. After one year of use, its strength does not decrease much. The disadvantage is that the glue layer is brittle and there will be a sense of hierarchy after vibration.

The adhesive strength of the Products produced by the continuous composite processing process of thermosetting plastic adhesive paper is 3-5 times higher than that of the Products produced by the first two processes. Its adhesive performance and aging resistance are good, and the strength decreases little after one year. Due to the continuous production and high efficiency, a large number of deliveries in a short period of time can be considered. The disadvantage of this processing technology is that the selected flat continuous hot rolling mill machinery and equipment are expensive and the project investment is large. Thermosetting plastic paper is such a unique hot melt adhesive film. The adhesive paper itself should have high cohesive compressive strength and tensile strength, so that the aluminum plate can be firmly bonded.

2. production process.

For Products manufactured by hot press, due to the high working pressure of the hot press, the operation is difficult. In order to avoid collapsing the aluminum honeycomb core, the protective layer is often placed. If the protective layer pad is too high, it will affect the release of the working pressure, resulting in low bonding strength. For example, choose a plane drawing machine, because the working pressure is displayed by the elastic effect, and the released working pressure can be manipulated according to the adjustment of the aspect ratio. Therefore, the product produced by this kind of processing process is selected with high adhesive strength and is very stable.

3. the aluminum plate face of the sheet metal part.

The oil stains, dirt and naturally occurring loose air oxide layer on the surface of the plate will seriously affect the actual effect of aluminum honeycomb panel bonding, so it must be cleaned and normalized. The surface of the aluminum plate can be pickled phosphated or chromized, so that a layer of inseparable organic chemical conversion film is formed on the surface of the aluminum plate, and the bonding effect of the aluminum plate is good after the solution.

　　上面是关于影响aluminum honeycomb panelWhat are the factors of peel strength knowledge summary, by reading the article we also understand some of the factors affecting the peel strength, the article for you to summarize the factors affecting the peel strength of aluminum honeycomb panels, these factors are adhesive, production process, aluminum surface layer.