Method for preparing high-toughness cyanate ester seamless tube

Abstract

The invention relates to a method for preparing a high-toughness cyanate ester seamless tube. The method comprises the following steps: 1) casting mixture raw materials according to mass percentages;2) preparing a steel tube; 3) preparing a prepolymer; 4) preparing a cyanate ester prepolymer; 5) mounting the steel tube obtained in the step 2) on a centrifuge with a mold, maintaining casting holesin two ends in a horizontal direction, heating the steel tube, and keeping the temperature at 60-70 DEG C; 6) preparing a cast mixture; 7) carrying out casting molding; 8) vulcanizing the steel tube;9) carrying out inner / outer surface cleaning treatment on the vulcanized steel tube, so as to obtain the cyanate ester seamless tube, wherein the cyanate ester seamless tube is stored in warehouses after inspection qualification. By adopting the production process provided by the invention, the wearing resistance of the tube is improved, the toughness of the tube is improved, and tube layering can be effectively prevented.

Description

technical field [0001] The invention relates to a method for preparing a high-toughness cyanate ester seamless pipe, which belongs to the technical field of pipeline design. Background technique [0002] Since the transportation of solid particles, ore, mud and other abrasive media in coal preparation, mining, metallurgy and other industries requires high wear resistance of pipelines, polyurethane materials are used as inner linings and steel pipes as outer protective layers to become the first choice for wear-resistant pipelines , but the polyurethane elastomer will curl up and deform under the action of strong persistent stress, which will hinder the transportation of solid particles, powder, slurry, liquid and other media, and even blockage and explosion will occur in harsh industrial and mining conditions. It will be broken and damaged under the impact of external force, and it will not play a protective role, causing harm to the personal and property of industrial and m...

AI Technical Summary

Problems solved by technology

[0002] Since the transportation of solid particles, ore, mud and other abrasive media in coal preparation, mining, metallurgy and other industries requires high wear resistance of pipelines, polyurethane materials are used as inner linings and steel pipes as outer protective layers to become the first choice for wear-resistant pipelines , but the polyurethane elastomer will curl up and deform under the action of strong persistent stress, hindering the transportation of solid particles, powder, slurry, liquid and other media, and even blockage and explosion will occur in harsh industrial and mining conditions. Under the impact of external force, it will be broken and damaged, and it will not be able to protect it. It will cause harm to the personal and property of industrial and mining enterprises, and the consequences will be serious.