extruder

The reasons for the formation of bulb-shaped material during the production in polypropylene extruders may include the following: 1. Excessively high temperature: High temperatures in the extruder can cause polypropylene to decompose, resulting in the formation of bulb-shaped material. 2. Excessive pressure: Too high pressure in the extruder can cause excessive compression of polypropylene, which also leads to bulb-shaped material. 3. Insufficient inner diameter of the barrel: If the inner diameter of the extruder’s barrel is too small, polypropylene cannot merge properly during extrusion, which also results in bulb-shaped material. 4. Incomplete filtration through the sieve plate: When the extruder is in operation, polypropylene needs to be filtered through a sieve plate; if the sieve plate is not clean enough or the filtering effect is poor, bulb-shaped particles will be formed. Solution: 1. Adjust the temperature: Lower the temperature of the extruder to prevent polypropylene from decomposing and producing bulb-shaped material. 2. Adjust the pressure: Reduce the pressure of the extruder to prevent polypropylene from being over-extruded and forming bulb-shaped material. 3. Replace the barrel: Using a barrel with a larger diameter can increase the degree of fusion of polypropylene during extrusion, thereby preventing the formation of bulb-shaped particles. 4. Improve the cleaning of the sieve plates: Clean them regularly to ensure optimal filtering performance and prevent the formation of bulb-shaped particles. .