Processing of thin-walled steel barrel At present, the 160-liter asphalt bucket produced in large quantities is 0.6mm thick, 500mm in diameter, 875mm in height and 160L in capacity. It is a typical thin-walled steel drum. The processing of thin-walled steel drums has its own process characteristics. First of all, in the seam welding of the barrel, it is necessary to grasp the precise welding current and other process parameters to prevent the welding breakdown due to the thin material wall. Since the axial rigidity of the thin-walled barrel body is weak, the barrel body is easily broken when the hem is pressed, and the crushing and folding equipment should be equipped with an accurate pressure adjusting device to ensure accurate axial pressure of the hem. . The material strength of the thin-walled barrel is weak and should be protected during processing. The ring and corrugation of the barrel should be expanded and processed, and the traditional rolling process should not be used. This is because the rolling process partially thins the material in the deformation of the barrel, destroying a certain material strength, and the expansion process keeps the original strength of the material unchanged (see the attached drawing). Xi'an Machinery Research Institute's production line uses process equipment such as barrel joint forming machine, etc. Its hydraulic transmission has precise pressure adjustment links, so that the machine tool pressure can not only meet the barrel crushing and folding, but also not cause axial pressure. Large causes the barrel to become unstable and cause damage. The ring and corrugation process used in the production line replaces the traditional rolling process to ensure the material strength of the thin-walled barrel. More importantly, the wide ribs formed by the corrugated expansion process greatly increase the overall rigidity of the barrel, which is very valuable for thin-walled steel drums. Interdental Brush, Interdental Brush Interdental Brush,Toothpicks Interdental Brush,Care Interdental Brush,Dental Toothpicks Interdental Brush Yangzhou Special Care Daily Products Co., Ltd , http://www.justspecialcare.com
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