Continuous rotary press.The AUMA rotary press rotary press Printing press that prints on paper passing between a supporting cylinder and a cylinder containing the printing plates. In contrast, the flatbed press has a flat printing surface. is characterized by its continuous production, and is said to provide constant output quality. The AUMA is used in the rubber industry for the vulcanization vulcanization (vŭl'kənəzā`shən), treatment of rubber to give it certain qualities, e.g., strength, elasticity, and resistance to solvents, and to render it impervious to moderate heat and cold. of rubber sheet, gasket material, conveyor belting or floor coverings. The AUMA is also said to be widely employed in the plastics industry for production of PVC PVC: see polyvinyl chloride. PVC in full polyvinyl chloride Synthetic resin, an organic polymer made by treating vinyl chloride monomers with a peroxide. floor coverings and conveyor belting. The working principle of the AUMA is based on a heating drum, a series of reversing rolls and a pressure belt. The pressure belt envelopes the heating drum for the greater part of its circumference and, being under high tension, it presses the material to be vulcanized vul·ca·nize tr.v. vul·ca·nized, vul·ca·niz·ing, vul·ca·niz·es To improve the strength, resiliency, and freedom from stickiness and odor of (rubber, for example) by combining with sulfur or other additives in the presence of heat , laminated or compressed against the heating drum. In this way, a constant pressure is guaranteed across the total width of the material being processed. The machine is driven via the upper reversing roll, and the speed is steplessly variable to suit every application. The benefit of this continuous process is said to lie in the uniform pressure, temperature and residence time, which together are said to provide constant production conditions for products in both longitudinal and transverse To cross from side to side. directions. (Berstorff) Circle 100 on card |
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