How can we use the elastomer extruder correctly?

There are many rubber products that elastomer extruder can produce, and the models and configurations of extruders used in the production of different rubber products are different. Therefore, when we choose elastomer extruder, we choose elastomer extruder according to the equipment configuration required for product production.

• What is the development history of elastomer extruder?

• What is the reason for the wear of the elastomer extruder?

• What is the method of elastomer extruder to solve screw wear?

What is the development history of elastomer extruder?

The elastomer extruder that appeared in 1870 is a hot feed extruder. The rubber material it feeds must be hot-smelted, and the feeding is uniform, stable and constant, and the material temperature is kept at 50-70 °C. The screw is short, the thread groove is deep, and the homogenization effect is not ideal. from the 1970s. There was a phenomenon that the aspect ratio became smaller. Because the hot-feed extruder can continuously extrude, simple operation, high production efficiency, and stable shape of the extruded product, the hot-feed extruder is still used in the production process of many products. elastomer extruder is used in tire production for the extrusion of various treads, various profiles, and for the extrusion of lagging and rubber blanks in the production of rubber hoses, cables and other rubber products.

What is the reason for the wear of the elastomer extruder?

Reasons for wear of elastomer extruder screw

Wear is reduced when the chips are heated and softened. Screws can wear abnormally when they are locked by loops and foreign objects. A loop knot means that the screw is locked by the condensed material. If the screw extruder lacks good protection, the powerful driving force can twist.

The normal wear of the elastomer extruder screw and barrel mainly occurs in the feeding area and metering area. The main cause of wear is dry friction between the chip particles and the metal surface.

If the screw of the elastomer extruder gets stuck, there will be an abnormally large amount of resistance, which will severely damage the surface of the screw and produce severe scratches. The barrel is designed in principle to ensure a longer service life than the screw.

What is the method of elastomer extruder to solve screw wear?

Local damage to the threads on the elastomer extruder is repaired by surfacing with a special corrosion- and wear-resistant alloy. Typically, inert gas arc welding and plasma argon arc welding are used, and metal spraying techniques can also be used for repairs.

Grind the outer surface of the worn screw to about 1.5mm, then cover the alloy layer to a sufficient size to ensure sufficient machining allowance, and then grind the outer circumference of the screw and the side of the screw to the original size of the screw.

Nanjing Haisi main products include plastic film extruder, co-rotating twin screw extruder, two stage extruder machine, single screw extruder, conical twin screw extruder, and auxiliary machines for various mixing system and pelletizing system, such as high speed mixer, vertical mixer, plastic crusher, pelletizer and so on.