There are many types of extruders nowadays, and ordinar […]
There are many types of extruders nowadays, and ordinary extruders are also used by many users, but the twin-screw extruder is currently widely used. What are its application advantages? Mainly the advantages of wearing parts, reducing production costs, improving labor efficiency, high torque and high speed, and wide application range. Pay attention to its maintenance during use.
Application advantages of twin screw extruder:
1. Wear of vulnerable parts
Because the twin-screw extruder is easy to open, the degree of wear of the screw elements and sleeves in the barrel can be known at any time, so that effective maintenance or replacement can be carried out. So as not to find out the problems in the extruded product and cause unnecessary waste.
2. Reduce production costs
When the common extruder changes color, a large amount of machine cleaning materials are required, which is time-consuming, power-consuming, and waste of raw materials. The twin screw extruder can solve this problem. When changing colors, you can quickly open the barrel for manual cleaning in just a few minutes, and the cleaning materials can be used less or less, which saves costs.
3. Improve labor efficiency
In the maintenance process, the heating and cooling system of the general extruder is often removed first, and then the screw is pulled out as a whole, and the upper half of the extruder barrel is lifted, and then the barrel is maintained.
4. High torque and high speed
At present, the extruder pursues high efficiency, and the effect of high speed is high productivity. Twin-screw extruders belong to this category, and the speed can reach about 500 rpm. Therefore, it has unique advantages in processing high-viscosity and heat-sensitive materials.
5. Wide range of applications
The twin-screw extruder has all the advantages of ordinary extruders, can achieve high-yield, high-quality, and efficient production, and has good adaptability to different materials, so it can be applied to the processing of various materials.
Maintenance of twin screw extruder:
1. Flush the cooling water channel with acid
The barrel of a twin-screw extruder is actually a heat exchanger. Like all heat exchangers, the water channels are prone to fouling and deterioration. A layer of scale is attached to the inner surface of the waterway of the old machine, which affects the heat transfer efficiency. Cleaning the steel cylinder with a certain concentration of acid can remove the scale and maintain the good heat transfer effect of the steel cylinder.
2. Clean the machine often
Cleaning materials are usually divided into two types: chemical and mechanical friction. Many cleaners have both chemical and frictional functions. Chemical cleaners can react with plastic residues, separating them from mechanical surfaces. The principle of mechanical friction cleaning is to use friction and shearing methods to rub and wash away residual material from the metal surface.