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With the continuous development of the packaging market and the increasing competition in the market, international large-scale glass packaging companies have been devoting themselves to making product quality more reliable and more beautiful in appearance in order to compete with paper packaging container companies and new packaging material packaging companies such as plastic bottles. The cost is lower and the price is cheaper. Recently, many large international companies such as American O?I Corporation, Australia ACI Corporation, Hong Kong New World Group, and French Saint-Gobain Group have poured into China and established a number of joint venture or wholly-owned glass bottle manufacturers. These international large-scale glass packaging companies generally adopt advanced energy-saving technologies; lightweight bottles and bottles; improve labor productivity and increase production concentration. It is reported that saving energy, improving melting quality and prolonging the service life of kiln are goals that foreign glass packaging industry continues to explore. The oxy-fuel combustion technology that is being promoted by foreign glass packaging industry is the second revolution after regenerative glass furnaces, and can achieve significant effects of low investment, low energy consumption, low NOx and powder emissions. Another way to save energy is to increase the amount of broken glass. The amount of broken glass added abroad reaches 60% to 70%. The ideal is to use 100% broken glass to achieve the goal of "ecological" glass production. In developed countries such as Europe, America and Japan, lightweight bottles are the leading products for glass bottles and cans. 80% of the glass bottles produced by Obe-dand in Germany are lightweight one-time bottles. Precise control of raw material composition, precise control of the entire process of melting, NNPB, spraying of hot and cold ends of bottles and cans, on-line detection and other advanced technologies are fundamental guarantees for realizing the lightweight of bottles and cans. Some countries are developing new surface enhancement technology for bottle cans in an attempt to further reduce bottle weight. The company's Sea Leaf Company applied a thin layer of primary resin to the surface of the bottle wall to produce a one-liter concentrated juice bottle of only 295 grams, which can prevent the glass bottle from being scratched, thereby increasing the pressure strength of the bottle by 20%. The popular plastic film sleeve labels are also beneficial to the lightweight of glass bottles and cans. How to increase the molding speed of glass is the key to improving the productivity of glass bottle manufacturing. At present, the commonly adopted method in developed countries is to use a multi-group, multi-drop molding machine. The speed of 12 sets of double drip-flow bottle-making machines produced abroad can exceed 240 pcs/min, which is more than 4 times higher than that of single drip forming machines commonly used in China. In order to ensure high-speed quality and high molding pass rate, electronic timers are used to replace the traditional cam drums. The main movements adopt molding parameters. The servo drive can be optimized to replace the mechanical transmission that cannot be arbitrarily adjusted. The cold end online inspection system automatically rejects waste products. The entire production process is controlled by the computer in real time, which can ensure the best molding conditions, ensure high-quality products, run more stable and reliable, and have extremely low reject rate. Large kilns that match high-speed molding machines must have a large capacity to stably supply high-quality glass, and the temperature and viscosity of the gobs must meet the requirements of the best molding conditions.
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