Plastic profiles due to the huge market demand and broad prospects for development in recent years has been the rapid development of our country, because of the intensity of competition in the market, all plastic machinery manufacturers are considered a problem, how to improve the plastic profiles under the premise of ensuring product quality productivity and product qualification rate, the maximum capacity of play equipment to reduce production costs. [1] The growing competition in the industry of plastic profiles, plastic profiles large mergers and acquisitions integration and capital operation is becoming more frequent supply pvc plastic sheet, more attention to the domestic producers of plastic profiles of outstanding research on the industry market, especially for business development depth study of the environment and changes in customer demand trends. Because of this pvc plastic sheet, a large number of outstanding domestic brands of plastic profiles rapid rise, has become the industry leader in plastic profiles! PVC melt temperature during processing is a very important process parameters pvc plastic sheet manufacturers, if this parameter is improperly and material degradation problems. PVC is rather poor flow characteristics, the process is very narrow range. Especially high molecular weight PVC material more difficult to process (this material is usually added to improve the flow characteristics of lubricant), it is often used are low molecular weight PVC material. PVC contraction rate is very low, typically 0.2 to 0.6%. Softening point close to the decomposition temperature of the polyvinyl chloride resin. It has begun to decompose at 140 ℃, the decomposition at 170 ℃ when more quickly. In order to ensure the normal molding process, PVC resin provides for the two most important indicators of pvc plastic sheet process, ie the decomposition temperature and thermal stability. The so-called decomposition temperature is the temperature when a large number of release hydrogen chloride, the so-called heat stability is at a certain temperature conditions (typically 190 ℃) is not a lot of time to release hydrogen chloride. PVC prolonged exposure to 100 ℃, unless adding a basic stabilizer, or will decompose, if it exceeds 180 ℃ the rapid decomposition. Shandong pvc plastic sheet, sea Widex (certified), pvc plastic sheet provided by Qingdao Rubber Material Co., Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is Qingdao, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Widex leadership in the sea with the staff warmly welcome all inquiries negotiations to create sea Widex a better future.