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Rotational products and other vacuum products compared to the advantages and disadvantages of the future and the rotomolding industry

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Rotational products and other vacuum products compared to the advantages and disadvantages of the future and the rotomolding industry

pubdate:2016-07-27 author: clicks:



First, the advantages of rotomolding process is: 1, rotomolding mold low cost: the same size of the product, the cost of rotomolding mold is about blow molding, injection mold costs 1/3 to 1/4; 2, rotomolding products The edge of the strength is good, rotomolding can achieve the edge of the product thickness of more than 5 mm, completely solve the problem of hollow products edge thin; 3, rotomolding can be placed in a variety of inserts; 4, rotomolding product shape can be very complex Thickness of more than 5 mm; 5, rotomolding can produce fully enclosed products; 6, rotomolding products can be filled with foam material, to achieve insulation. 7, no need to adjust the mold, rotomolding product wall thickness can be freely adjusted (2mm above), 8, easy to shape with marble and texture rich appearance of the surface products. Second, the shortcomings of the rotational molding process are: (1) the molding cycle is long; (2) the need for multiple energy molding; (3) generally difficult to shape the surface of the flat surface of the products; (4) and the mold does not touch the final surface Smoothness difference; (5) the largest amount of polyethylene molding cooling shrinkage after the large, poor dimensional stability. Therefore, the future of rotomolding technology will be widely used, will become the "12th Five-Year Plan" during the development of the power can not be ignored, but also in line with the "second Five-Year" period of energy conservation and environmental protection concept.

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