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  • Barrel screw wear repair technology

    Barrel screw wear repair technology

    Date Mar 16,2022

    The wear of the barrel and screw is mainly manifested in the wear during use, especially when the use time is long or the long-term production of highly filled or glass fiber reinforced materials causes the inner diameter of the barrel to increase. B...

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  • Barrel screw repair principle

    Barrel screw repair principle

    Date Mar 09,2022

    The two important parts of the screw and the barrel, one is a slender threaded rod, the other is a small and long hole, their machining and heat treatment processes are more complicated, and it is difficult to ensure accuracy. After the wear of these...

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  • How to repair and strengthen the screw

    How to repair and strengthen the screw

    Date Mar 04,2022

    How to Repair and StrengthenThe repair and strengthening process of the screw is as follows:1. Surface cleaning screwBefore the spray welding of the screw, it is necessary to clean the residual plastic attachments on the surface of the screw. The cle...

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  • What are the requirements for the manufacturing quality of the screw

    What are the requirements for the manufacturing quality of the screw

    Date Feb 21,2022

    ①The screw of the extruder should be made of alloy steel with small thermal deformation, wear resistance and corrosion resistance. Commonly used materials are 38CrMoAlA alloy steel or 40Cr steel, and repair parts can also be made of 45 steel.②The bla...

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  • How to disassemble the screw and how to repair it

    How to disassemble the screw and how to repair it

    Date Feb 19,2022

    Reasons for screw damage1. The temperature of the raw material is low when plasticizing.2. The raw material is mixed with metal foreign matter or there are many impurities in the raw material.3. The screw idle time is too long.4. Unreasonable selecti...

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  • How to use the barrel and screw

    How to use the barrel and screw

    Date Feb 15,2022

    Barrel heating widely adopts resistance heating, and uses thermocouples to achieve segmented temperature control and side detection. Resistance heating is to use resistance to generate heat to heat the barrel, and then transfer the heat to the plasti...

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  • Repair and strengthening process steps of screw

    Repair and strengthening process steps of screw

    Date Feb 10,2022

    1. Surface cleaningBefore the screw spray welding, the remaining plastic attachments on the screw surface should be cleaned up. The cleaning method is to install the screw on the sprayer and rotate it, bake it with a neutral flame of a spray gun, and...

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  • What are the reasons for the easy damage of the flat double barrel

    What are the reasons for the easy damage of the flat double barrel

    Date Jan 26,2022

    The flat double barrel rotates in the cylinder, and the working surfaces of the screw and the cylinder are gradually worn due to the friction between the material and the two. The diameter of the flat double barrel is reduced due to friction, and the...

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  • How to prevent the alloy screw from slipping

    How to prevent the alloy screw from slipping

    Date Jan 22,2022

    When the alloy screw is difficult to compress the material at the feed port, or when there is not enough adhesion along the length of the barrel to transport the material, the alloy screw will slip. In the pre-forming stage of the alloy screw, when t...

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