The Characteristic of Seamless Precision Steel Tube

Precision steel pipe is a kind of steel pipe that inside and outside of the wall are without oxidation layer, withstand high pressure without leakage, high precision, high finish, cold bending is not deformed, flaring, flattening no cracks and so on. The main advantage of seamless precision steel tube is characterized by a smaller diameter, high precision, high precision, good surface quality, better performance, more dense metal. It has strict requirements on the pipe body bore, the outer wall size and the tolerance and roughness. Seamless precision steel pipe is mainly used for mechanical structure, hydraulic equipment, hydraulic and pneumatic cylinder manufacturing.

The characteristic of seamless precision steel tube:

1. Finished tube size accuracy, internal and external diameter can be accurate to within 0.05mm.
2. Internal and external surface finish is good.
3. There is no oxide film on the inner and outer surfaces of the precision tube after cold rolling.
4. Precision pipe flaring, flattening no cracks, cold bending is not deformed, can withstand high pressure.
5. Performance is superior, can make a variety of complex deformation and mechanical deep processing.

The uses of seamless precision steel pipe:

1. Precision tube for automobile manufacturing, precision pipe for automobile parts, precision tube for precision equipment, Precision pipe for boiler equipment.
2. Motor shell with precision tube, motor shell, DC motor tube.
3. Industrial processing categories: machinery manufacturing with precision pipe, machine tool processing with precision tube, bearing pipe with precision pipe, processing machinery parts, etc. High pressure tubing, hydraulic cylinder.
5. Other: electrical gas transmission, water power pipes and so on.

Differences between Precision Steel Pipe and Seamless Steel Pipe

Precision steel tube is a kind of high precision steel pipe after cold drawing or hot rolling treatment. It is mainly used to produce pneumatic or hydraulic components because of the advantages of high-pressure non-leaking, high precision, high finish, cold bending, The products, such as cylinders or cylinders, are made of seamless steel pipes. Precise seamless steel pipe chemical composition of carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.

Welded precision steel tubes are primarily used for structural and media conveying applications due to the high degree of dimensional accuracy of the internal and external diameter – and the stability resulting from that fact.

Precision steel pipes are always the first choice in all cases that involve a high level of dimensional accuracy of outer-, inner diameter or of the wall thickness. They dispose over a smooth surface and provide for targeted mechanical properties. Prime Steel Pipe offers you a comprehensive assortment of seamless or welded precision pipes in the most diverse range of wall thicknesses. We thereby of course, comply with all these specifications and standards. On request, we also take on various processing assignments for our customers.

Differences between precision steel pipe and seamless steel pipe

1. The main feature of seamless steel pipe is welded joints, can withstand greater pressure. The product can be very rough as cast or cold parts. The following are the same as the "
2. Precision steel pipe is the product in recent years, mainly the hole, the outer wall size has strict tolerances and roughness.

How to Improve the Accuracy of Precision Steel Pipe Wall Thickness

Wall thickness precision steel pipe production control is a difficult process and improve the accuracy of precision steel wall thickness are mainly the following aspects:

1, heating pipes, heating should be uniform, rapid lifting ban temperature. Each heating and

cooling, in order to maintain stability.

2, centering rollers, opening the same size centering rollers determine the installation is in place, embrace the central core volume adjustments related to the opening angle and various actions.

3, rolling centerline, the centerline of the car to ensure that rolling consistent with the centerline of the hole puncher avoid scrolling up and down "the tube to maintain a straight line.

4, rolling tool for head and other rolling tool wear should be promptly replaced.

5, rolling tool installation, the central leadership must ensure that the centerline of the centerline distance and rolling guide rollers perforated, which is equal to the distance from the upper and lower rollers are approximately equal.

6, perforation ram ram perforation usually selected outer diameter Φ108mm-Φ114mm, wall thickness and wall thickness requirements ≥25mm uniform thick-walled tube.

7, the mandrel mill, a mandrel to choose and the thick walled precision steel processing, the smaller size of the mandrel can be used in place of solid billet. Thickness uniformity walled tubes and solid billets, can make the probability of a significant reduction in the mandrel bending deformation, can effectively improve the precision steel tube wall thickness.

8, precision mandrel, the mandrel slenderness relatively large, generally using the first car and then hit the outside diameter of groove weld, directly open long or molding material. Mandrel outer precision control ± 0.1mm, straight mandrel deviation does not exceed 5mm. Welding, finishing insert a pin positioned between two sections of the mandrel, the total deviation to prevent the direct result of excessive welding.

9, process improvements, process improvement, prevent the intermediate precision steel pull thin wall thickness and increase exceeds the control range occurs.