Double screw extruderThe advantages mainly include the following aspects:
1. Twin screw extruders have a wide range of applications and can be used for processing various materials.
2. Accurate measurement and reasonable feeding method of twin-screw extruder are the key to strictly implementing the formula and ensuring product quality. We provide multiple feeding methods based on material performance and user needs, such as volume measurement, dynamic weight loss measurement, etc., to meet the needs of different products.
3. Reduce production costs. At present, ordinary twin-screw extruders require a large amount of cleaning materials for color replacement, which is time-consuming, electricity consuming, and wastes raw materials. The split twin-screw extruder can solve this problem. When changing colors, it only takes a few minutes to quickly open the barrel for manual cleaning, which saves costs by using less or no cleaning materials.
4Double screw extruderImproved labor efficiency. During equipment maintenance, ordinary twin-screw extruders often need to remove the heating and cooling systems first, and then extract the screw as a whole. However, the split twin-screw does not need to be used. Just loosen a few bolts, rotate the worm gear box handle device to lift the upper half of the barrel, and then open the entire barrel for maintenance. This not only shortens maintenance time but also reduces labor intensity.
5. Plastic modified granulator provides a visual understanding of the wear and tear of vulnerable parts. Due to its easy opening, the wear level of threaded components and the inner lining of the barrel can be detected at any time, allowing for effective maintenance or replacement. It will not be discovered only when there is a problem with the extruded product, causing unnecessary waste.
Currently, in the worldDouble screw extruderThe development trend is towards high torque, high speed, and low energy consumption, and the effect brought by high speed is high productivity. The split twin-screw extruder belongs to this category, with a speed of up to 500 revolutions per minute. So it has an advantage in processing high viscosity and heat sensitive materials. How to improve the blending performance of twin-screw extruder?
Frequently clean the machine
Cleaning is a simple and widely used method for removing materials from extruders and molds, which avoids time-consuming disassembly and cleaning.
Cleaning materials are often divided into two categories: chemical cleaning agents and mechanical friction cleaning agents. Chemical cleaning agents attack plastic residues like solvents. Many chemical cleaning agents also add a foaming function, which requires soaking in the barrel for 5 minutes to exert its chemical effect.
high-pressure water pump
The extruder cooling circulation system generally provides a pressure of 20-60psi. To achieve turbulence, reach a pressure of 120 PSI. Just change the water pump of the circulation system to a high-pressure pump. Almost all cooling system components (hoses and valves) of the extruder need to be upgraded to 150 PSI to meet the safety factor of 120 PSI. The advantage is that a large amount of heat is immediately discharged during processing. Recommended reading: How to improve the blending performance of twin-screw extruders (Part 1)
Rinse the cooling water channel with acid
The water-cooled extruder barrel is a heat exchanger, like all heat exchangers, the water channel is prone to scaling and deterioration. If left unattended for a long time, the scale layer can cause serious problems. The final cooling water channel is blocked and dripping water does not flow. At this point, *'s solution is to remove the barrel from the extruder and take out all the cooling water channels.
Switch to synthetic gear oil
The heart of a gearbox type twin-screw extruder. If it's finished, it will cost a lot of money to repair and be quite time-consuming. At this point, one thing we can do is to avoid gearbox problems: switch to synthetic gear oil.