There are many types of sandwich panels, and the types and specifications of their substrates (different metal coatings and their coating thicknesses) are no less than more than ten kinds. The same hot-dip galvanized steel sheet and different specifications of galvanization have different corrosion resistance life. It can be known that sandwich panels made of different materials have different service lives, not to mention that there are more than ten kinds of coatings for sandwich panels, so that even if only the two types of substrate and coating are arranged and combined, various sandwiches can be obtained. As far as the probability life of the board is concerned, it is not a simple mathematical model that can be summarized clearly.
The production of each product has a certain service life, and the same is true for sandwich panel products. According to some data, it is proposed that the durability of the sandwich panel refers to the time before the coating is severely hardened and chalked, that is, the specified life Does not crack or fall off inside. Relevant professionals all know that sandwich panels produced with different types of coatings have different service lives.
As for the service life of the sandwich panel, the relevant personnel also pointed out that it has a certain correlation with the environment. We know that due to the outdoor use of the sandwich panel, it is affected by pollution and climatic conditions. When the organic coating film is exposed to sunlight for a long time It is hardened and powdered due to irradiation, swelling and loose holes due to moisture, and eventually loses the protective effect of the coating film, it needs to be repainted and maintained. As a result, the service life of sandwich panel products is gradually shortened. Hope that the introduction of this knowledge can provide corresponding help for the majority of users.
Users who have applied sandwich panel products may know something. Everyone knows that in order to achieve the best results in the use of a product, the first thing to do is to understand its relevant knowledge, and as a professional user It is far from enough to just master these, so professionals will further explain the related knowledge of its sandwich panel:
The color coated steel plate of the sandwich panel is a product made of cold-rolled steel plate and galvanized steel plate as substrates, surface pretreatment, continuous coating (roll coating method), baking and cooling. This sandwich panel has light weight, beautiful appearance, good corrosion resistance, and can be directly processed. It provides a new type of raw material for construction, shipbuilding, vehicle manufacturing, furniture, electrical industries, etc. Good results such as wood replacement, efficient construction, energy saving, and pollution prevention.