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There are several production methods of coextrusion film?
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The coextruded film is made of polypropylene as the main raw material, participates in a variety of additives, is drawn into a belt, is woven into a net, the mesh is formed into a regular hexagon, every three intersecting and overlapping, is closely connected, and the pulling force is dispersed in six directions on average. This structure is conducive to the dispersion of vertical heavy load, and the net is connected with the net rope to form a whole, depending on the coal mining technology of each coal mine.
It can be divided into stratified mining and total mining. The plastic roof protection net for mining is resistant to acid and alkali corrosion, is not easy to age, and has a long service life. It prevents the defect that barbed wire is easy to rust. Problems such as poor stability and reliability, unsightly appearance and short service life have also caused domestic packaging machinery products to be criticized. Safety detection technology: Safety is the first key word in any industry, especially in the packaging industry, especially in the food operation industry, safe detection technology has been carried out rapidly in recent years. At present, the performance of food safety in packaging machinery is not only limited to the range of simple physical parameters, but also to pay attention to the color of food, raw materials and other elements. The scope of application of packaging machinery is expanding, so that new requests are made for machinery manufacturers and automation product suppliers from time to time.
Motion control technology: The development of motion control technology in China is very fast, but the momentum in the packaging machinery industry is weak. The role of motion control products and technology in packaging machinery is mainly to reach accurate position control and strict speed synchronization request, which is mainly used for loading and unloading, escort, marking, palletizing, palletizing and other processes, professor Li thinks that motion control technology is one of the key elements to distinguish high, medium and low-end packaging machinery, and it is also the technical support for the promotion of packaging machinery in China.
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