When we use a three-screw extruder, we will inevitably encounter some faults in the machine. At this time, we must learn how to deal with these faults. So how to analyze these faults? When a fault occurs, it is usually analyzed and solved through abnormal screw operation, vent ma

2024/05/0623:39:32 science 1983

When we use a three-screw extruder, we will inevitably encounter some faults in the machine. At this time, we must learn how to deal with these faults. So how to analyze these faults? When a fault occurs, it is usually analyzed and solved through abnormal screw operation, vent material, etc. The editor below will take you to find out!

Common fault analysis of three-screw

1. The screw is not operating normally

The reasons are: the hopper feed is discontinuous; the feed port is blocked or bridged by foreign matter; hard metal objects fall into the spiral groove, block the spiral groove, and cannot feed normally. Give.

treatment method: speed up the feed speed of the three-screw extruder to keep the feed stable; remove foreign matter at the feed port to eliminate bridging; if metal foreign matter falls into the spiral groove, stop the machine immediately, disassemble the screw, and remove Metal foreign objects.

2. The reasons for vent material

are: the raw materials are mixed with a large amount of impurities, the feed speed of the three-screw extruder is too fast, and the extrusion of screw is unstable. Because the screw extrusion is unstable, the plasticizing temperature is not enough. .

processing method: clean the raw materials or replace the filter before feeding; reduce the feeding speed to ensure smooth extrusion of the screw with stable plasticization; increase the plasticizing temperature of the three-screw extruder.

Nanjing Colonwell has been engaged in the plastic extruder equipment manufacturing industry for more than 10 years. The team members have sufficient experience in this industry. Okay, that’s all for today. If you have any questions, you can contact this site directly. Our 24-hour customer service is online and can answer all kinds of questions about extruder at any time!

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