Special high-performance heat conducting insulation alloy screw rod for reworked plastic modification

Abstract

The invention discloses a special high-performance heat conducting insulation alloy screw rod for reworked plastic modification. The screw rod is prepared by the following components by weight: 100 kg of stainless steel powder, 0.5 kg of titanium carbide, 0.4 kg of calcined kaolin, 1.2 kg of silicotungstic acid, 5 kg of nanometer ceramic powder, 0.6 kg of tungsten carbide, 3 kg of silicon carbide, 0.8 kg of tungstate, 0.5 kg of zirconium oxide, 4 kg of magnesium-alloy alloy, 0.4 kg of calcined urarovite, and 0.01 kg of graphene microchip. The screw rod can reach a working temperature of 500 DEG C, is stable in performance and uniform in heat conduction, has such advantages as wear resistance and corrosion resistance, and is high in extruding efficiency. The screw rod is prepared by a high-performance heat conducting insulation alloy material, is excellent in heat conducting effect, and is uniform in material heating.

Description

technical field [0001] The invention relates to the technical field of plastic processing equipment, in particular to a high-performance heat-conducting and insulating alloy screw specially used for the modification of recycled plastics. Background technique [0002] Since the formation of the modern plastics industry in 1930, after more than 80 years of rapid development, the plastics industry has become the mainstay of light industry. While the wide application of plastic products has also produced huge plastic pollution, it has caused great damage to the global ecological environment. The main treatment methods for waste plastics are landfill and incineration. However, because landfill occupies a large space, it increases the pressure on land resources. At the same time, because waste plastic is difficult to degrade, it seriously hinders water infiltration and groundwater circulation. , Secondly, the additives in waste plastics will also cause secondary pollution to the ...

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Problems solved by technology

In the existing domestic market, there are many recycled and modified granulation machines for waste plastics, but most of them have insufficient ball milling fineness when modifying waste plastics in the regeneration stage, poor physical and chemical properties of recycled modified plastics, easy damage to equipment, and poor performance. Defects such as stability

In terms of the gap between the barrel and the screw of the waste plastic modification equipment, the gap between the existing similar products in China is generally about 80 wires. At the same time, due to the unqualified surface treatment technology of the screw, the screw is prone to expansion, and the screw thread and the inner wall of the barrel are prone to occur. Contact friction, which eventually prevents the device from functioning properly

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