The common point is that they are sandwich panels, all with a hard protective layer, the difference is that the material in the middle is different.
The production of sandwich pu panels requires an advanced continuous production line of sandwich panels. The process is formed by cold-bending forming of inner and outer galvanized (aluminum-zinc-plated) color steel plates and intermediate-coated polyurethane rigid foam.
The foam sandwich panel is beautiful in appearance, bright in color and good in overall effect. It integrates load-bearing, heat-insulating and waterproof, and does not require secondary decoration. It is a versatile use, especially for temporary facilities such as offices and warehouses on construction sites. Walls, etc., also embody the civilized construction of modern construction sites, especially in terms of rapid installation and use, there are obvious advantages in the detachable and recyclable index of materials that can be installed, and the temporary facilities cost of construction sites is greatly reduced. It will be an indispensable new lightweight building material.
Polyurethane board. Polystyrene board is the most common, because the price is cheap, the processing is simple, so it is used more, but if there is a requirement for temperature, the polystyrene board can not meet, so there is a polyurethane sandwich board, polyurethane hard The thermal conductivity of the bubble is less than 0.023, which is the best in the large-scale processing of the existing insulation materials. However, due to its complicated process and relatively high cost, it is used less, and there are common cold storages. It is believed that with the development of economy and technology, the market share of polyurethane sandwich panels will become more and more. High