#Economical pu sandwich panel machine

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Sandwich Panel Generation Technologies

sandwich panel line Constant and discontinuous panel producing techniques More than the previous fifty years, sandwich panels have evolved as a specifically economical signifies of design. The mixed materials are usually two pores and skin layers (rigid metal dealing with materials or versatile skins such as slim aluminum, paper or membranes, dependent on the application) and a core insulating substance. There are generally two panel manufacturing systems: continuous and discontinuous. In the ongoing method, all the utilized materials are processed jointly, and the fully fashioned panel is reduce to the desired length without having halting the line. In the discontinuous approach, the supplies are processed individually this implies the facings are fashioned and cut to the desired length and then assembled with each other in a press the place the foam is injected. The discontinuous procedure has a decrease level of efficiency that are not able to be compared with that of the continuous one. It is utilized these days for items with shapes that do not let the ongoing process, or when the production rate required does not justify expenditure in a steady line. A steady line has an regular speed of about 14 meters per moment in creation of medium panel thickness (forty-fifty mm) with steel facings. With 1 8-hour change a working day in excess of 220 times in a yr, generation quantities to about 1,180,000 meters for each year, assuming an performance of eighty per cent. A discontinuous line with a double press twelve meters extended, underneath the same conditions, can reach manufacturing of about a hundred,000 meters for each yr when working a single change for each day. Continuous panel generation line A standard steady line is manufactured up of the adhering to a few sections: • external levels processing part • insulating material processing segment • panels dealing with segment In a typical situation of a sandwich panel with each exterior surfaces in sheet steel and an insulating main in polyurethane rigid foam, the 1st section begins with the sheet decoilers and continues with all the tools for forming the two sheets into the wanted condition. The panel could be a panel for walls or for roofs. Sandwich panels with adaptable layers (aluminum, glass fiber sheets, asphalt paper) are not rollformed. Both surfaces of the last panels are fully flat. The surfaces are pre-heated to the temperature required by the process (generally among 40 and 65 C) and then the insulating content is ready. In the situation of polyurethane (PU-PIR) panels, the foam is produced by starting from the required chemical components metered and mixed with each other in the foaming equipment. The ensuing liquid mixture is evenly distributed over the decrease metallic sheet. The metallic facings, foam and achievable side strips or gaskets are pressed inside the double conveyor or steady push. This machine has to preserve the metallic sheets separated at the wanted distance even though the foam expands. In this way, the panel will have the wanted thickness and shape once the foam has expanded and entirely healed. The most essential parameter to guarantee a very good consequence from the method is the temperature control of the chemical factors, steel sheets and press spot. If the insulating substance is mineral wool or expanded polystyrene, it is inserted and glued to the metal sheets in the kind of mattresses that have been lower and shaped to the appropriate thickness just before insertion. Temperature is yet again a vital parameter, this time for the response of the glue, i.e. for excellent adhesion of the interior board to the external layers. Right after currently being fashioned, the panel is cut, cooled, stacked and wrapped with a plastic film. These very last functions can be done instantly or manually, dependent upon the automation stage that the consumer calls for for their generation line.