With the aggravation of air pollution, especially with the advancement of urbanization in China, the application of stainless steel plates and sheets materials which is with high corrosion resistance, high strength and low maintenance has been paid more and more attention and promoted in the field of building curtain wall.
Embossed stainless steel plate curtain wall, after more than ten years of wind and rain, the appearance effect is still bright and new. For example, the curtain wall made of 1.5mm stainless steel sheets for Dongchang wealth center is still brand-new since it was completed in 2004, which proves that the stainless steel plate curtain wall will be more durable than other material. At the same time,the permeability and luster of stainless steel sheets and plates can not be imitated by other materials.
Stainless steel can be roughly divided into flat steel sheets and concave convex steel sheets. The flat stainless steel plate is divided into three categories: 1. the mirror stainless steel plate with light reflectivity greater than 90%; 2. 50% ~ 90% reflectivity is glossy stainless steel plate; 3. Matt steel plate with reflectivity less than 50%. Concave convex stainless steel plate is also divided into relief stainless steel plate, shallow relief pattern stainless steel plate and chequered stainless steel plate. Flat steel plate is usually made by grinding and polishing process. Concave convex steel plate is usually made by rolling, corrosion, engraving and special grinding after normal grinding and polishing. It can be seen that with the large-scale use of stainless steel sheets in building facade, higher requirements are put forward for its flatness, and thinner and smoother curtain walls are pursued.
Because of its high strength, stainless steel sheets or plates can be used in high-rise and super high-rise buildings. It has high toughness and can be used for bending , which can achieve more architectural appearance effects. Strong corrosion resistance and convenient maintenance in the later stage. In view of its many performance advantages, it is favored by architects. Stainless steel sheets curtain wall generally adopts the waterproof method of slotting and backing plate, because there is a layer of oil film on the surface of stainless steel plate. Before applying sealant, the surface of stainless steel plate must be cleaned of oil stain, and then coated with special primer, otherwise it is difficult to ensure the bonding performance between weather resistant sealant and stainless steel.
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