Single Screw Extruder Features and Applications

Single-screw extruder is a common extruder equipment. Single-screw extruder is mainly used in plastic processing industry. Single-screw extruder is generally divided into three sections in effective length. The single-screw extruder presses the screw diameter. The size of single-screw extruder pitch and single-screw extruder screw depth determine the effective length of a three-stage single-screw extruder. Single-screw extruders are generally divided by one-third.

High-efficiency single-screw extruder adopts a two-stage overall design to enhance the plasticizing function. The single-screw extruder guarantees high-speed and high-performance stable extrusion. The special barrier is designed for comprehensive mixing. The single-screw extruder guarantees the mixing of materials. The effect of high shear and low melt temperature ensures high performance low temperature and low pressure metering extrusion of materials.

Single-screw extruder design concepts and features: high-speed, high-production extrusion on a high-straight basis.

Single-screw extruders are inexpensive to design, so single-screw extruders are widely used. However, the single-screw extruder has its limitations in use. The single-screw extruder mainly performs in the following aspects:

(1) The material transportation of the single-screw extruder mainly depends on friction, so that the feeding performance of the single-screw extruder is limited, and powder, paste material, glass fiber and inorganic filler are difficult to join.

(2) When the head pressure of the single-screw extruder is high, the countercurrent increases and the productivity of the single-screw extruder decreases.

(3) The single-screw extruder exhaust extruder has a small surface regeneration effect in the exhaust zone, and the single screw extruder has a poor exhaust effect.

(4) Single-screw extruders are not suitable for certain processes, such as polymer coloring, thermosetting powder processing, etc.

Single Screw Extruder Applications: All thermoplastic extrusion molding, extrusion granulation.