Details of small-diameter seamless pipe

-Diameter seamless pipe:
The small-diameter seamless pipe is used for mechanical structure, hydraulic equipment, high dimensional accuracy and surface finish is a good small-diameter seamless tube.

Use precision seamless tube manufacturing machinery structure or hydraulic equipment, etc., can greatly reduce the mechanical processing time, improve material utilization, and help to improve the product quality. Small-diameter seamless pipe production methods can be divided into hot-rolled pipes, cold-rolled pipes, cold drawn tube, squeeze tubes, hot-rolled seamless pipe production, usually in units of automatic rolling solid tube by check and clear surface defects cut into desired length, end to end surface of the perforation in the tube centering and then sent to the furnace heating in punch perforations in perforation while continuing to rotate and advance tube gradually formed within the cavity under the action of the roller and head said capillary, and then sent to the automatic rolling machine continued rolling and finally by the machine are the entire wall thickness sizing, sizing machine, within specification, use of continuous pipe mill producing hot-rolled seamless steel pipe is a more advanced approach Ruoyu get smaller and better quality seamless pipes, to adopt the method of cold-rolled cold-rolled cold drawn or both are usually on a two roll mill, small-diameter seamless pipe variable cross-section hole slot and fixed cone head ring pass rolling, cold drawing is usually in a single chain or double chain drawing machine, extrusion is about to heat a good tube placed in closed extrusion cylinder perforation rod movement together with the extruded rod, extrusion extrusion from the die hole of smaller, this method can produce smaller diameter steel pipe.


Small-diameter seamless pipe weight formula: [(OD - Wall Thickness) * Wall thickness] * 0.02466 = kg / m (the weight per meter)