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  • What is the role of the extruder screw of the plastic machine

    The material of the Conical twin screw barrel must have high mechanical strength, be able to withstand huge torque, and have the performance not to deform under high temperature and high pressure conditions. The rotation of the extruder screw in the ...

  • How to avoid screw cross contamination

    Although purge compounds are designed Nitriding screw barrel to leave much less residue, it is inevitable that there will always be some residue of a previous product left inside the machine.There are some ways to overcome this. One method is to use ...

  • How to properly maintain the conical twin screw extruder

    1.When the new machine is used for half a year, due Parallel twin screw barrel to the wear and tear, we must check the clearance between the screw and the barrel every three months, and make appropriate adjustments. This should be done to avoid an ex...

  • What is the effect of oversized screw and barrel

    Note the oversizing of screws and barrels is generally only done for extrusion and blow molding applications and very seldom done for injection molding. That’s because in injection molding the non-return valve would also have to made oversize, which ...

  • What are the common reasons for the screw not feeding

    In the processing of plastic products, many screw barrel for Injection molding machine questions are often encountered. One of the common questions is that the screw of the injection molding machine is not fed. This kind of question: The screw is ope...

  • How to specify screws and barrels for corrosive materials

    Corrosive, abrasive, and high-temperature resins can degrade Screw barrel before you know it. Certain engineering materials, thermoplastic elastomers, plus the wave of newly developed biopolymers, often create a corrosive condition that can quickly d...

  • Maintenance and maintenance technology of screw extruder

    1. After the machine has been used for a period of time, a comprehensive inspection should be done to check the tightness of all screws. 2. In case of production interruption, the main drive and heating will stop. When the power supply is restored, e...

  • What is the design principle of the barrel screw of the injection molding machine

    Design principle of barrel screw of injection molding machine: The main part of the pin screw is an ordinary screw, the pin can be set in the fusion section of the screw or the drop groove of the metering section or a smooth cylindrical surface witho...