Annealing of plastic products Annealing of plastic products means that plastics are unevenly plasticized in the barrel or the product is not uniformly cooled in the cavity, which causes the internal stress of the product to cause deformation, cracking, aging, etc. . The annealing treatment is carried out indoors, using a hot liquid medium such as hot water, hot mineral oil, hot glycerin or the like, heated to a temperature 20-35 degrees higher than the product use temperature or 25-35 degrees lower than the heat distortion temperature of the product. Next, the product is placed in, the length of annealing depends on the wall thickness of the product, and the thicker the wall, the longer it takes to anneal. It should be noted that the annealed product should be flattened to allow it to cool naturally after it has been taken out of the hot liquid. It is not possible to use the cold water to take the quick cooling method. Annealed products are generally PC, PS and other plastics, for POM, PVC and other plastics do not need to be annealed. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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Commercial lighting is a term used to describe lighting that is used in commercial spaces, including auto dealerships, distribution centers, churches, factories, offices, and warehouses. Unlike residential lighting, commercial lighting is made to withstand more abuse and has a longer lifespan.
While the focus of residential lighting is often on aesthetics, commercial lighting is task orientated. Commercial lighting systems are designed based on what the application is. For example, in an office-type setting, you may see task lighting, which illuminates specific areas where employees need concentrated light to be able to perform their jobs.
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Annealing of plastic products