Ceramic metal anti-corrosion pipe and forming technology

Abstract

A ceramic metal anti-corrosion pipe, which is composed of an inner liner and an oil pipe. The inner liner is made of iron powder, simple aluminum powder and silicon powder in a ratio of 1-1.5:0.45-0.60:0.05-0.15, wherein the iron powder and elemental aluminum powder according to 2Al+Fe 2 o 3 =Al 2 o 3 The reaction products of +2Fe+836Kj / mol are stable a-Al2O3 and Fe, and a large amount of heat is released at the same time, which ensures the continuous progress of the reaction. The invention also provides a molding process of the ceramic metal anticorrosion pipe. The ceramic metal anti-corrosion pipe prepared by the molding process of the present invention can reach a length of 11 meters. The invention is a new type of cermet anticorrosion material, which is a perfect combination of non-metallic materials and metal materials. The ceramic metal anticorrosion pipe provided by the invention has good firmness. The determination of the proportion and composition of iron powder, elemental aluminum powder and silicon powder in the invention The prepared ceramic metal anticorrosion pipe has relatively long service life, relatively high mechanical properties of the product, high corrosion resistance, good wear resistance and high strength.

Description

Technical field: [0001] The invention relates to the technical field of metal-ceramic lining anticorrosion materials, in particular to a ceramic metal anticorrosion pipe and a molding process, which can be used to manufacture an 11-meter-long ceramic metal anticorrosion pipe. Background technique: [0002] With the advancement of science and technology, the requirements for industrial application materials are getting higher and higher, especially the corrosion protection of metal materials is of particular concern. Commonly used isolation methods, corrosion inhibitor methods, and electrochemical protection methods for corrosion protection can only protect, but cannot fundamentally cure the corrosion of metals. At the same time, these protection methods have problems such as high cost of use, environmental pollution, and limited application environments. Therefore, research and development of corrosion-resistant materials such as new special alloys, new ceramics, and composi...

AI Technical Summary

Problems solved by technology

Around 2000, more than a dozen universities and research institutes across the country, led by Nanjing University and Beijing University of Science and Technology, invested a lot of manpower, material and financial resources to manufacture ceramic composite steel pipes with a diameter of <700mm and a length of <6m. At present, some enterprises have also mastered this technology. related processes and steps, but the quality and stability of the product have not been improved, and the mechanical properties of the product are not good enough. The centrifuges that produce this product have a low degree of automation, and most of them are in the stage of manual operation.

In 2011, Professor He Yi from the School of Chemistry and Chemical Engineering of Southwest Petroleum University developed a metal material anticorrosion and corrosion inhibitor, which was widely used in oilfield industrial steel pipes, but the shortcomings of short service life and high cost are prominent