24 Hours Hotline:+86-13611965409

Home > News > News Show News Show

Introduction to the Invention of Seamless Steel Pipe

The time of issue:2014-7-7 10:02:44       Author:

In the seamless steel pipe invention described in terms of welded tubes , patented in 1923, after a low-frequency resistance welding method and DC welding method has now entered into the main production, small- diameter steel pipe with high frequency induction welding method ( Sham ai - - Zhu Lu France ) era. In addition, the large-diameter pipe, using UO molding process producing straight seam submerged arc welding pipe forming process using spiral submerged arc welded spiral steel pipe production. Black steel pipe is a classic.

In the records of the seamless steel pipe invention, is a seamless hollow sections, no seams around the long bar of steel. Seamless steel hollow sections, a large number of pipelines for transporting fluids, structure seamless steel pipe ( seamless pipe processing machinery, such as mufti- walled seamless steel pipe seamless steel pipe ), seamless steel pipe and solid bar, etc. compared to steel, the same torsional strength in bending, lighter , is an economic cross-section steel, It is mainly used in the manufacture of structural parts, relatively broad range of applications, such as the manufacture of steel scaffolding construction using. They have been widely used in the original black steel pipe period.

Historical Research seamless steel pipe invention can know when two brothers invented Masonic so solid within seconds into round seamless steel technology, but when the world does not believe in the existence of this technology. This process them in the eyes of many technical experts think it is contrary to common sense physics. Thus constitute a lot of controversy. But they have not issued any statement on the matter. Because of the fact this it is difficult to understand. Man's brother inherited his father's technical interests, they made early on soft core manufacturing technology patent steel, composite steel.

In the seamless steel pipe invention process, seamless steel pipe has been great development, but also into a lot of categories. Black steel pipe also galvanized steel, referred clarinet. Galvanized steel is widely used in construction, chemical, railway vehicles, coal, automobile industry, and the construction of the construction, highway bridges, but also the application of galvanized steel; besides, these are also suitable for galvanized steel. Galvanized steel increases the corrosion resistance, thereby extending the service life. Galvanized pipes are widely used.


Home | Products | Company Profile | News | Services | Contact Us | Online Inquiry | Sitemap Copyright © Shanghai Xin Lin Co.,Ltd.
We supply the following products: API steel pipe | black steel pipe | welded steel pipe