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What Are The Requirements For The Quality Of Single Screw Barrel Manufacturing?

  What are the requirements for the quality of Single Screw Barrel manufacturing?

  What are the requirements for the quality of Single Screw Barrel manufacturing?

  ① extruder with a Single Screw Barrel with a small deformation, wear-resistant, corrosion-resistant alloy steel. Commonly used material is 38CrMoAlA alloy steel or 40Cr steel, maintenance accessories can also be made of 45 steel.

  ② Single Screw Barrel material blank should be used forging rough forming.

  ③ Single Screw Barrel by the mechanical processing, the cylindrical accuracy should reach 8 (GB 180 a 79) precision quality requirements.

  ④ The angle between the working shaft of the Single Screw Barrel and the connecting part of the drive shaft and the screw outer circumference of the Single Screw Barrel shall not be more than 0.01mm.

  ⑤ single thread screw part of the working surface roughness R. Value: The sides of the thread should not be greater than 1.69m, the bottom and the outside of the thread should not be greater than 0.8 / 1m.

  ⑥ If the use of low-carbon alloy steel material manufacturing Single Screw Barrel, in order to improve the hardness of the working face and corrosion resistance, wear resistance, the surface of the nitriding to be nitrided, nitriding depth 0.3 ~ 0.6ram, surface hardness of 700 ~ 840HV The Brittleness is not greater than grade 2.

  ⑦ Single Screw Barrel hole connection to make 0.3MPa hydraulic pressure test, for 5min not allowed to leak water phenomenon.