Techniques involve cleaning a polymer melt, which allow volatile foreign substances and solid foreign substances to be removed from the polymer melt. Such techniques involve a filter element and a vacuum of a vacuum chamber. The polymer melt is fed through the filter element into the vacuum of the vacuum chamber, The filter element binds the solid foreign substances and the vacuum chamber takes up the volatile foreign substances.

The present disclosure relates to a facility for forming one of a graphene-polymer resin composite and a carbon material-polymer resin composite. According to the facility of the present disclosure, in a process of forming the composite, gas and water vapor contained in graphene, a carbon material, and a polymer resin are effectively removed resulting in an increase in coupling force between the polymer resin and one of the graphene and the carbon material, and the graphene and the carbon material is uniformly dispersed inside the polymer resin resulting in no degradation of physical properties of the composite, and also, the polymer resin may be prevented from carbonizing and solidifying because there is no stagnant section while molten liquid of the polymer resin and one of the graphene and the carbon material passes through each apparatus in the facility, and thus, physical properties of the composite are maintained constant.

The present disclosure relates to a facility for forming one of a graphene-polymer resin composite and a carbon material-polymer resin composite. According to the facility of the present disclosure, in a process of forming the composite, gas and water vapor contained in graphene, a carbon material, and a polymer resin are effectively removed resulting in an increase in coupling force between the polymer resin and one of the graphene and the carbon material, and the graphene and the carbon material is uniformly dispersed inside the polymer resin resulting in no degradation of physical properties of the composite, and also, the polymer resin may be prevented from carbonizing and solidifying because there is no stagnant section while molten liquid of the polymer resin and one of the graphene and the carbon material passes through each apparatus in the facility, and thus, physical properties of the composite are maintained constant.

In a cost-effective and qualitatively better method for producing spacers for a winding unit of an electrical high-voltage device, at least two starting components are mixed together in a mixing chamber under vacuum to form a component mixture. The component mixture is transferred to an extrusion housing, likewise under vacuum, of an extruder in which a transport device is arranged and which is equipped with a mouthpiece delimiting an outlet opening. The extrudate exiting from the mouthpiece is cured by the addition of heat in a vacuum in order to obtain the spacers.

Techniques involve cleaning a polymer melt, which allow volatile foreign substances and solid foreign substances to be removed from the polymer melt. Such techniques involve a filter element and a vacuum of a vacuum chamber. The polymer melt is fed through the filter element into the vacuum of the vacuum chamber, The filter element binds the solid foreign substances and the vacuum chamber takes up the volatile foreign substances.

A suction device for drying at least one plastic strand, incorporates a suction housing having a top side, a bottom side and several lateral surfaces, the top side having an inlet opening and one of the other surfaces having an outlet opening for the flow of a drying medium therethrough, and a screening element which has through apertures a base area with a maximum length and a maximum width. Each through aperture has an aperture cross-sectional area, and the sum of the aperture cross-sectional areas of all through apertures together forms a total aperture cross-sectional area. The screening element is on the top side and has its drying area above the inlet opening of the suction housing. The at least one plastic strand is moved in a process direction on the screening element, wherein the process direction is in a longitudinal direction of the screening element. The length of the drying area is at least 150 mm, and a ratio of the total aperture cross-sectional area of the through apertures to the base area of the drying area is between 30% and 45%, in particular 35% and 40%.

A plastic melt machine includes a feed screw rotatably mounted in a barrel and driven in rotation about a longitudinal screw axis of the feed screw by a screw drive to plasticize material, and an apparatus for driving a device independently of the feed screw. The device can be any rotatable device associated with the feed screw wherein the device is rotatable about a drive axis and is in fluid communication with the barrel to receive the plasticized material. The drive axis is one of parallel to and offset from the screw axis and extending at an angle relative to the screw axis. A drive shaft couples the device to the device drive for rotating the device independently of the rotation of the feed screw by the screw drive.

The present invention provides a film producing apparatus and a method of producing a film both of which reduce the cost of producing a film. A film producing apparatus includes a first plasticizer collecting section and a second plasticizer collecting section each of which collects a portion of a film-forming plasticizer which portion has been separated from the film.

A plastic melt machine includes a feed screw rotatably mounted in a barrel and driven in rotation about a longitudinal screw axis of the feed screw by a screw drive to plasticize material, and an apparatus for driving a device independently of the feed screw. The device can be any rotatable device associated with the feed screw wherein the device is rotatable about a drive axis and is in fluid communication with the barrel to receive the plasticized material. The drive axis is one of parallel to and offset from the screw axis and extending at an angle relative to the screw axis. A drive shaft couples the device to the device drive for rotating the device independently of the rotation of the feed screw by the screw drive.

In a cost-effective and qualitatively better method for producing spacers for a winding unit of an electrical high-voltage device, at least two starting components are mixed together in a mixing chamber under vacuum to form a component mixture. The component mixture is transferred to an extrusion housing, likewise under vacuum, of an extruder in which a transport device is arranged and which is equipped with a mouthpiece delimiting an outlet opening. The extrudate exiting from the mouthpiece is cured by the addition of heat in a vacuum in order to obtain the spacers.