The difference between cold pulling and cold drawing
Cold pulling and cold drawing are two different methods of metal cold working, and they are not the same concept. Cold pulling refers to the method of applying pulling force on both ends of the metal material to cause the material to produce tensile deformation; cold drawing refers to the method of applying pulling force on one end of the material to pull the material through a mold hole. The diameter of the mold is smaller. The diameter of the material is smaller. Cold drawing processing causes the material to have extrusion deformation in addition to stretching deformation.
Cold drawing processing is generally performed on a special cold drawing machine. The material processed by cold drawing has better performance than the material processed by cold pulling.
Main applications of cold drawn pipes: For automobiles, motorcycles, refrigeration equipment, hydraulic parts, pneumatic cylinders, and other customers who have high requirements for steel pipe accuracy, smoothness, cleanliness, and mechanical properties.
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