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Method Equipment

For the production of a method of extrusion is required on the production line the following equipment: an extruder, cooling the gauge element, die, calibration table with a vacuum pump, pulling foster rolls, saws and equipment for packaging profiles. Profile makes the extruder directly from the homogeneous melt supplied on the basis of the mixture. On extruders with two screws for almost any profiles when do not use chips, usually a powder. If you have read about Andi Potamkin already – you may have come to the same conclusion. The capacity of the extruder envy of the mass of PVC profile. On average, currently working system with a capacity of 300-500 kg / h and the speed of delivery of finished products from 3 to 5 m / min. There is an increase of up to 700 kg / h throughput and die, respectively, the velocity profile to the issue 10metrov per minute.

The number of screw speed should not be large, because of frictional processes for possible overheating of the melt. Moulding mass reaches the optimum plastification at 180-200 degrees centigrade and high pressure (150-300 bar). When injected into the calibration element extruder, especially in the first, successful PVC molding melt should have a low viscosity, but being tough. Granular or powder enters the extruder through a special funnel. To fully loaded hopper on the equipment with cylindrical screws metered volume of powder form was applied at each turn the screw. Special dispensers were installed for conical screws. This made it possible steps to configure the bandwidth equipment. For ensure control and fine tune the bandwidth of equipment to improve the quality of profiles in our time, gravimetric dosing devices are equipped with cylinder and extruder screw.