Green and low-carbon development has reached a consensus around the world, and there is a product that has attracted more and more attention, and that is cork. Cork is not a kind of wood, but the bark of an oak tree. Oak is one of the oldest tree species in the world. Oak trees can only be peeled once in 25 years, and then picked again every nine years.
Cork is a renewable resource, and at the same time it is a natural, unique and scarce limited product. There are many types of cork forming processes. Today, Kukesi cork manufacturers will introduce to you what are the forming processes of cork.
1. Natural cork products, after steaming, softening and drying, are directly cut, stamped, turned, laminated and other methods to make cork cloth, cork coaster, cork crafts, cork leather and other products.
2. Baking cork products, the leftovers of natural cork products are crushed and then compressed into shape, and baked in an oven at 260-316 degrees Celsius for 1.5 hours. After cooling, they are made into cork bricks, which can also be made by hot steam heating. .
3. Cemented cork products, fine cork particles and powders, adhesives such as resin and rubber are mixed and pressed into cemented cork products, such as floor veneers, cork sound insulation boards, cork heat insulation boards, etc., which are widely used in aerospace, ships, machinery , Construction and other aspects.
4. Cork rubber products, using cork powder as raw material, the amount of rubber is about 70%, it has the compressibility of cork and the elasticity of rubber. It is mainly used as high-quality low- and medium-pressure static sealing materials such as engines. It can also be used as Anti-vibration, sound insulation, friction materials, etc.
The above is the main process of cork forming. The tree species used to produce cork is usually more than 20 years old. Plants with a diameter at breast height greater than 20cm can be stripped for the first time. The bark obtained is called primary bark. Peeling, the obtained skin is called regenerated skin, and the thickness of the skin is 2 cm or more.
