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Small seamless precision steel pipe used in hydraulic equipment

Views: 43     Author: Site Editor     Publish Time: 2018-09-10      Origin: Site

In common condition that in the series of small diameter seamless steel pipe, small seamless precision steel pipe is widely used in the application area. Small seamless precision steel pipe is mainly used in hydraulic equipment, with good surface finish of mechanical structure and high precision of small diameter seamless steel pipe. The machine structure or hydraulic equipment made of seamless precision steel pipe can greatly shorten the working time and improve the material utilization rate and even though improve the product quality.

Small diameter seamless steel tube can be divided into cold drawn tube, and extrusion tube, and cold rolled tube and hot rolled tube. Cold drawing usually adopts to use single chain cold drawing machine or double chain cold drawing machine, extrusion method and heating tube blank to be extruded and shaped inside the cylinder bore bar of airtight extrusion, which is formed by the extrusion die. Seamless precision steel pipe is a kind of hollow section long steel without joint. From the domestic and foreign market, the existing production capacity of seamless steel pipe has exceeded the demand. Therefore, in the future, we should pay the most focus on making full use of the capacity of existing units in order to develop following parts: high-strength grade, and high-resistance failure, and high-corrosion resistant tubing, and high-pressure boiler tubes, cylinder pipes, etc., which is also the content of optimizing product structure in China's steel market at present. This is also the key to improve the competitiveness of domestic and foreign products and expand market share in the world

Tips:Bright precision steel pipe processing method:

1. Deep processing: it is easy to produce friction heat. Therefore, at the end of molding, high pressure, high heat and precision light pipe should be used to remove the oil attached to the surface.

Smooth precision seamless pipe welding: steel welding bars such as rust, oil, water, paint should be removed before welding. The spot welding time is shorter than the carbon steel spot welding distance. After welding, the surface is treated or cleaned to prevent local corrosion or strength degradation.

2. Cutting punching: as the bright precision seamless tube is generally stronger than the material, stamping and shear require higher pressure, and the knife-blade gap is not accurate, and shear failure and working hardening cannot occur. Plasma or laser cutting is preferred when gas cutting or cutting, grinding in thermal affected areas and necessary heat treatment.


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