Plastic extruder is a common plastic mechanical equipment. In the daily operation of the extruder, various faults are inevitable, which affect the normal production of the extruder. Below, we will analyze the faults of the extruder in detail.

Bridging occurs when materials interlock or bond together, forming an arch above the container outlet. There are many factors that cause the "bridging" phenomenon: particle size, shape, specific gravity, humidity, static electricity, the cohesive strength and internal friction of a single particle will all have an impact on the "bridging" phenomenon. When this happens, the arched structure holds the rest of the contents in the feeder in place, preventing the remaining material from being discharged.

PU is the general term for polyurethane, while TPU is a thermoplastic polyurethane elastomer. TPE is a polyolefin elastomer, while TPU is a polyurethane elastomer. TPU has much better wear resistance, and its hardness can be very low.

Plastic compounding refers to a process in which various additives and ingredients are mixed or compounded with plastic resins to create a customized material with specific properties. This process allows manufacturers to enhance or modify the characteristics of plastic materials to suit particular applications.

According to the functional differences of additives in improving plastics, from the perspective of increasing the processing characteristics of the base material, additives include: From the perspective of increasing the physical and chemical properties of the substrate, Instructions for use of various additives, Basic requirements for selecting additives and application considerations, Precautions for application of additives, Several common additives in the plastic modification industry.

TPE elastomer is a high-performance material with excellent thermoplastic rheological properties, easy molding and processing, and maintains high elasticity at room temperature. Therefore, TPE elastomers are widely used in the automotive industry, such as seals, shock absorbers, protective baffles, and special applications such as conduits and fittings. Its outstanding performance and diverse applications are leading the trend of material revolution in the automotive industry!

In the daily operation of a twin-screw extruder, there are several key considerations to keep in mind to ensure smooth and efficient processing.

▪ Pre mixing - refers to the mixing of modified materials (base materials, auxiliary materials, additives) in the pre mixing machine before the polymer mixing host (such as twin screw, continuous mixer, Booth kneading machine, three screw, etc.), and basically operating below the melting point of the base resin; ▪ Mixing - refers to the use of measuring scales (including weight loss scales, weight gain scales, solid volume pumps, etc.) above the main material inlet of the mixing host to achieve "mixing" of multi flavored materials in a small discharge well (or hopper), and to achieve "mixing" in the host; The latter obviously completes wetting, dispersion, extrusion, and granulation above the melting point of the base material.

TPE/TPR materials have recyclable properties, do not contain any potential toxic ingredients, have adjustable hardness, and support oil spraying, screen printing, and printing processing, making them a good choice to replace PVC materials!

Five common problems and countermeasures in plastic granulation processing 1.Black spot 2.broken bar 3.Hollow 4.Venting 5.Bridging