Twin-screw extruders are widely used in various industries due to their efficient mixing and plasticizing capabilities.
Introduction to the production process of polypropylene (PP) pipes in the plastics processing industry
:- Raw material preparation: Put polypropylene granules into the hopper.
- Heating and melting: The particles enter the heating zone through the rotation of the twin screws and gradually melt into a melt.
- Mixing and plasticizing: The melt continues to move forward and is mixed and plasticized by the special design of the twin screws.
- Extrusion: The plasticized melt is extruded through a die to form a tube.
- Cooling and shaping: The extruded tube passes through a cooling water tank to fix its shape.
- Traction cutting: The traction device is used to maintain a constant speed and a cutting machine is used to cut the pipe into the required length.
Key equipment: twin-screw extruder, heater, mold, cooling water tank, traction device, cutting machine.
Technical points: screw design, heating temperature control, and mold accuracy.
Brief introduction to the production process of rubber seals in the rubber processing industry
:- Raw material preparation: Put the raw film and additives into the hopper.
- Heating and mixing: The raw rubber and additives are fully mixed through the rotation of the twin screws and the heating zone.
- Plasticization: The mixture continues to move forward and is plasticized.
- Extrusion: The plasticized mixture is passed through a die to form the shape of the seal.
- Cooling and curing: The extruded seal is cooled to complete the curing process.
Key equipment: twin-screw extruder, heater, mold, cooling equipment.
Technical points: twin-screw mixing efficiency, heating temperature control, and mold design.
Brief introduction to the process of producing puffed food in the food processing industry
:- Raw material preparation: Add raw materials such as flour, water and seasoning into the hopper.
- Heating and mixing: The raw materials are mixed and heated to the puffing temperature through the rotation of the twin screws and the heating zone.
- Puffing: The mixture is extruded through a die under high pressure, and the instantaneous pressure reduction causes the material to expand.
- Cooling and molding: The puffed food is further molded through a cooling belt or cooling chamber.
Key equipment: twin-screw extruder, heater, mold, cooling equipment.
Technical points: twin-screw mixing efficiency, precise control of heating and decompression, and mold design.
Brief introduction to the process of producing drug particles in the pharmaceutical industry
:- Raw material preparation: Add drug powder and excipients into the hopper.
- Mixing: The raw materials are evenly mixed through the rotation of the twin screws.
- Wet granulation: Adding a liquid binder to agglomerate powder into granules.
- Drying: The wet granules are passed through a dryer to remove excess water.
- Screening: Remove unqualified particles through screening equipment.
Key equipment: twin-screw extruder, mixing equipment, dryer, screening equipment.
Technical points: mixing uniformity of twin screws, amount of adhesive added, and control of drying temperature.
Brief introduction to the process of producing carbon fiber reinforced polyamide composite materials in the field of polymer composite materials
:- Raw material preparation: Add polyamide resin and carbon fiber into the hopper.
- Heating and mixing: The raw materials are mixed and heated by the rotation of the twin screws and the heating zone.
- Mixing and Plasticizing: The mixture continues to move forward and is plasticized.
- Extrusion: The plasticized mixture is formed into the desired shape through a die.
- Cooling and curing: The extruded composite material is cooled to complete the curing process.
Key equipment: twin-screw extruder, heater, mold, cooling equipment.
Technical points: twin-screw mixing efficiency, heating temperature control, and mold design.
