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Small diameter precision steel pipe
Description:Small diameter precision steel pipe is used for mechanical structure, hydraulic equipment of high dimensional accuracy and good surface finish of small diameter seamless pipe. The selection of precision seamless tube manufacturing mechanical structure or hydraulic equipment, can greatly save machining hours, improve the utilization rate of materials, and help to improve product quality.
parameters
The tube billet is continued rolling on the automatic tube rolling machine and finally the wall thickness is equalized by the whole machine and the diameter is calibrated by the sizing machine to meet the specifications. It is a more advanced method to use continuous tube rolling unit to produce hot rolled small-diameter precision steel pipe, which is usually carried out on the two-high rolling mill. Small-diameter precision steel pipe is rolled in the annular pass composed of variable section round hole groove and stationary conical top. Cold drawing is usually in the single chain or double chain cold drawing machine extrusion method is heated good tube blank placed in the closed extrusion cylinder perforating rod and extrusion rod together, so that the extrusion parts from the smaller die hole extrusion, this method can produce small diameter precision steel pipe.
introduction
Annealing process in which precision seamless steel tubes are heated to a certain temperature (usually below the temperature of phase transformation or recrystallization), held for a period of time, and then slowly cooled to eliminate the internal stress of various precision seamless steel tubes
10# 20# 35# 45# 16Mn 27SiMn 15CrMo 40Cr 20Cr 35Crmo etc.
General specifications of small diameter precision steel pipe.
3. Outside diameter between (3mm-42mm) we are used to call it small diameter precision steel pipe, because his diameter is relatively small.
4. The wall thickness in (0.8mm-12mm) can also be divided into: small diameter thick wall precision steel pipe, small diameter thin wall precision steel pipe.
