Aluminum adhesive tape is widely used in different industry.Aluminum foil has a clean, sanitary and shiny appearance. It can be integrated with many other packaging materials. Moreover, the printing effect of aluminum foil surface is better than other materials. In addition, aluminum foil has the following characteristics: (1) the surface of aluminum foil is extremely clean and hygienic, and no bacteria or microorganism can grow on the surface. (2) Aluminum foil is a non-toxic packaging material, it can directly contact with food without any harm to human health. (3) Aluminum foil is a kind of tasteless and odorless packaging material, which will not make the packaged food have any peculiar smell. (4) If the aluminum foil itself is not volatile, it and the packaged food will never dry or shrink. (5) No matter in high temperature or low temperature, aluminum foil will not have grease penetration phenomenon. (6) Aluminum foil is an opaque packaging material, so it is a good packaging material for products exposed to sunlight, such as margarine. (7) Aluminum foil has good plasticity, so it can be used to package products of various shapes. It can also be made into containers of various shapes. (8) Aluminum foil has high hardness and tensile strength, but its tear strength is small, so it is easy to tear apart
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Because CNC machine tools have superiority that cannot be compared with traditional machine tools, CNC technology has become the core technology and basic technology of manufacturing automation. In order to keep up with the development trend of the times and promote the progress of enterprises, most casting companies are conducting or preparing CNC machine tools. However, because of the limitation of the original production level, many casting companies have a large number of ordinary machine tools. If the ordinary machine tools are dismantled and the new CNC machine tools are purchased, a large amount of operating funds will be spent, which will bring new problems to the numerical control of the casting machine tools.
The numerical control transformation of the machine tool is the transformation of the numerical control on the basis of the original ordinary machine tool, which can greatly save the cost of purchasing a new casting machine tool. According to the survey, the transformation of large-scale machine tools generally requires only 1/3 of the cost of new machine purchases, which saves the cost of acquisition. The numerical control of the machine tool greatly improves the efficiency of the machine tool. At the same time, it can significantly improve the machining accuracy and reduce the scrap rate caused by human error. Therefore, the numerical control of the casting machine tool can effectively save the company's production costs. 
