Corrosive, abrasive and high temperature resistant resins may damage the twin screw barrel screws with no one knowing it. For example, certain engineering materials, thermoplastic elastomers and biopolymer materials sometimes create a corrosive environment. In addition, reinforcing materials (such as glass fibers, glass balls), certain fillers and additives are abrasive.
In order to avoid affecting production efficiency and product quality, these materials must be closely monitored to prevent damage to the equipment. In order to maintain high processing standards, it is necessary to establish preventive maintenance procedures. When necessary, the screws of the twin screw barrel should be checked and measured, and the screws of the screw barrel should be pulled out for reinstallation or replacement, because minimal wear will also affect product quality.
The best way to protect equipment from corrosive and abrasive resins is to select suitable materials to make twin screw barrel screws. In order to deal with corrosive, abrasive and high-temperature melts, it is necessary to manufacture wear-resistant barrels and screws, the cost of which is about 3 to 4 times that of standard polyolefin screws. This is because wear-resistant alloys are relatively expensive and difficult to process, but they can provide a longer service life, and the maintenance interval can be longer.