| 摘要 |
<p>The invention refers to a process for the internal anticorrosive and anti-erosive protection of tubular steel material by using squired plastics and the resulting material can be used in the oil industry, for instance. This process, according to the invention, consists of isolating on the inside a piece of tubular steel material by squirted plastic tube that is centered and maintained at a certain distance from an internal wall of the tubular steel material, so that it creates an annular space obstructed at both ends, at one end, it is provided with a communicating window between the annular space and the exterior, so that the air can be evacuated from the annular space while at the other end a mineral binder is being injected through a hole made in the tubular steel material. The product, according to the invention is obtained by applying this process, that includes a steel tube (3), provided with a lateral opening (4) at one end, inside which an equally long tube (2) made of squirted plastics is introduced, two fixing buttons (1) are attached on the exterior surface of the tube (2) and they come in contact with the steel tube (3) internal wall, so that an annular space is created between the two tubes (3 and 2), at both ends, out of which one sealing system (7) has a circumference discontinuance allowing communication between the annular space and the exterior, between two successive steel tubes (3), provided with the squirted plastic tubes (2) either a self-sealing set (8) or a mounting nipple (11) can be attached.</p> |
