Cold drawn steel tube/cold drawn seamless steel pipe steel is a new type of high-tech energy-saving products

Product features the so-called high precision cold drawn steel tube is refers to the inner and outer diameter size accuracy (tolerances) strictly, both inside and outside surface roughness, roundness, straight degree good, uniform wall thickness precision steel pipe.

The product after honing slightly, can be directly used for hydraulic and pneumatic cylinder cylinder tube. And traditional production technology of hydraulic and pneumatic cylinder cylinder pipe, hot-rolled seamless steel tubes, the boring ─ ─ roll cutting technology of joint production process, a large number of metal is cut into chip to waste, but also consume a large amount of electricity. With the development of industrial technology in China, the hydraulic cylinder technology has been widely used, according to incomplete statistics, the country each year to about 3.8 million meters, all kinds of hydraulic cylinder use the old technology, production of hydraulic cylinder has been difficult to adapt to the needs of the development of production.

In recent years, the use of this technology in the production of precision steel tube has been widely used in domestic hydraulic, pneumatic cylinder, coal mine bracket (pillar), oil pump pipe, jack and other manufacturing areas. Application of high precision cold drawn precision steel tube to save steel, improve the machining efficiency, save energy and reduce the hydraulic cylinder, cylinder processing equipment investment has important significance. The technology in November 1991 by puit, expert appraisal committee of science and technology in anhui province, in December 1992 through expert appraisal committee of science and technology in jiangsu province. Among the technology by the national science and technology commission (93) the national science hair into a word no. 500 of the national key scientific and technological achievements promotion plan "project in the guide, Numbers for i2-1-4-21.