• by admin
• 2024-03-04

What are the metal plate materials of PU sandwich panels?

PU sandwich panel is a composite material widely used in construction, industry and other fields. Its core structure consists of two layers of metal plates and a polyurethane (PU) core material in the middle. This unique structure gives the PU sandwich panel excellent thermal insulation, impact resistance and load-bearing capabilities. In PU sandwich panels, metal plates, as an important component, play a key role in supporting and protecting the core material. So, what are the main materials of the metal plates of PU sandwich panels?

1. Aluminum plate

Aluminum plate is one of the most commonly used metal plate materials in PU sandwich panels. Aluminum plates have the characteristics of light weight, high strength, good corrosion resistance, and easy processing and shaping. They are very suitable as the outer material of PU sandwich panels. In addition, the surface of the aluminum plate can be sprayed, anodized and other treatments to give it good decoration and durability.

2. Steel plate

Steel plate is another common PU sandwich panel metal plate material. Steel plates have the characteristics of high strength, good impact resistance, and superior fire resistance. They are often used in situations that require high structural strength and fire resistance. However, steel plates are relatively heavy and prone to rust, so they require appropriate anti-corrosion treatment during use.

3. Galvanized sheet

Galvanized sheet is a layer of zinc coated on the surface of the steel sheet to improve its corrosion resistance. Galvanized sheets are also widely used in PU sandwich panels, especially in humid and corrosive environments. Galvanized sheets not only have good corrosion resistance, but also have good decorative and processability.

4. Color coated plate

Color-coated sheets are coated with a layer of color coating on the surface of steel sheets or galvanized sheets to increase their aesthetics and decoration. The application of color-coated boards in PU sandwich panels not only improves the appearance quality of the product, but also enhances its weather resistance and corrosion resistance to a certain extent.

5. Stainless steel plate

Stainless steel plate is a high-grade metal plate material with excellent corrosion resistance, impact resistance and aesthetics. Although the price of stainless steel plates is relatively high, stainless steel plates are still the preferred metal plate material in situations where product quality and appearance are extremely demanding, such as high-end buildings and food processing workshops.

In summary, the metal plate materials of PU sandwich panels mainly include aluminum plates, steel plates, galvanized plates, color-coated plates and stainless steel plates. Different materials have different characteristics and applicable occasions. Choosing the appropriate metal plate material is crucial to ensure the performance and quality of PU sandwich panels.