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Special screw

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    Special screw

    Various screw barrels are strictly made of alloy steel as raw materials, and are carefully manufactured using new process technology and processing and testing equipment to ensure the accuracy and quality of the products, and have good wear resistance and corrosion resistance. 1 Processing and manufacturing process 1. Processing specifications: small inner hole Φ14, large Φ300X8000mm 2. Raw materials: 38CrMoAlA (SACM645), bimetal 3. Surface roughness: Ra0.4μm 4. Straightness: 0.015mm / m5. Nitriding treatment: Surface hardness > 1000HV; Depth: 0.5 ~ 0.8mm; Nitriding brittleness ≤ 2 level 2 Principle The main part of the pin screw is an ordinary screw. The pin can be set in the groove of the melting section or the measuring section of the screw or there is no screw groove at the end of the measuring section Smooth cylindrical surface. The pins are arranged according to a certain arrangement, and the density can be varied. Details >>
    Special screw


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