Double screw extruder should follow the principles of temperature, deceleration and structure when used. When the double screw extruder is working, it needs to overcome a lot of resistance. Therefore, a slope on the structure is wrapped around the central layer to increase pressure and reduce resistance.
During the working process of the double screw extruder, the speed changes are achieved by adjusting the motor speed. Usually, full-speed rotation of the motor is very fast for the double screw extruder, which generates a lot of heat, making the prepared plastic material very uneven and unable to be mixed well. Therefore, in the third stage of the process, deceleration is required to ensure the deceleration rate and working match are correct. Otherwise, a lot of energy will be consumed, and a pulley group needs to be added in a deceleration stage.
Double screw extruders can extrude thermoplastics. They will melt during heating and solidify again during cooling. Therefore, heat is needed to ensure that the plastic material reaches the melting temperature during the extrusion process. Where does this heat come from?
The heater of the barrel and the preheating of the feed play a very important role when turned on. In addition, the energy input by the motor is also an important heat source.
In the actual operation process, the temperature of the rear barrel is very important, which affects the conveying speed of the solid in the feed. Usually, the temperature of the mold and die head should be able to reach the melting temperature or be close to it.
Nanjing KY Chemical Machinery Co., Ltd. not only provides customers with first-class quality extruders but also helps customers optimize the entire production system. From material storage, drying, transportation, measuring, mixing, to final product packaging, we equip the factory-level intelligent control system to provide customers with a complete set of high-reliability and cost-effective solutions.
The application of double screws will also be extended to the fiber, film, and reaction extrusion industries. Nanjing KY focuses on customers, is familiar with the different needs of customers in various fields and industries, and brings better service experience and creates higher value for customers. Welcome to inquire.
Tel: +86-25-52706155
E-mail: info@kymach.com
No.59 West Tianyuan Road, Jiangning, Nanjing, Jiangsu Province, China
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