Views:0 Author:Site Editor Publish Time: 2021-06-25 Origin:Site
We can often hear the name of tpu on the Internet or in life. It is often used in automobile, machinery, industry and so on. But what kind of material is this? What kind of machine is tpu produced? Today we will introduce the basic knowledge of tpu material and tpu granule machine.
The paper mostly consists of three parts:
What is tpu？
What are the components of tpu granule machine？
Precautions for the peration of tpu granulator.
TPU is a kind of polymer material between rubber and plastic, which is called thermoplastic polyurethane elastomer rubber.
TPU is a mature environmental protection material with excellent properties of high tension, high tension, toughness and aging resistance. At present, TPU has been widely used in medical and health, electronic and electrical appliances, industry and sports, etc. it has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, climate resistance, etc., which are unmatched by other plastic materials. At the same time, it has high water resistance, moisture permeability, wind resistance, cold resistance, antibacterial, mildew resistance, heat preservation, heat preservation, etc Anti-ultraviolet and energy release and many other excellent functions.
According to the molecular structure, TPU can be divided into the polyester type and polyether type. According to the processing method, TPU can be divided into injection molding grade, extrusion grade and blow molding grade.
Tpu granule machine consists of extrusion system, transmission system and heating and cooling system.
1. Extrusion system. The extrusion system includes screw, barrel, hopper, head and die.
2. Transmission system. The function of the transmission system is to drive the screw supply. The torque and speed of screw in the extrusion process are usually composed of motor, reducer and bearing.
3. Heating and cooling device. Heating and cooling are necessary for the extrusion process. In the heating device, the particles in the cylinder are heated externally to reach the temperature required by the process operation. The cooling device is set to ensure that the particles are in the temperature range required by the process.
1. The tpu granulator should run in a positive direction.
2. The tpu granulator is not allowed to run without load, but must run with hot charging, so as to avoid the stick (hold shaft) phenomenon.
3. It is strictly forbidden to enter iron and other sundries in the feed port and vent hole of the granulator. In order to avoid unnecessary accidents and affect the normal production safety.
4. Pay attention to the temperature change of the fuselage at any time, and raise the temperature immediately when touching the strip with clean hands.
5. When the bearing part of the reducer burns hands or is accompanied with noise, it should be shut down for timely maintenance and replenished with oil. When the bearing parts at both ends of the main engine bearing chamber are hot or noisy, stop the machine for maintenance and add grease. During normal operation, the bearing chamber is filled with grease every 5-6 days.
6. When the fuselage operation is unstable, it should pay attention to check whether the gap of the coupling is too tight, and it should be adjusted in time.
Nanjing Haisi is a professional manufacturer of granulating extruders for plastic modification and compounding and plastic recycling. We produce tpu granule machine of high quality, you are welcome to learn about and order.