A steel pipe with an integrated connection structure

A connection structure, an integrated technology, applied in the direction of connecting members, rod connections, non-removable pipe connections, etc., can solve the problems of easy water seepage at the interface, easy cracking at the joint, and reduced strength, etc., to improve the strength and Effects of stability, extended service life, and reduced aging rate
CN113389954BActive Publication Date: 2021-10-29江苏钜水建设工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
江苏钜水建设工程有限公司
Publication Date
2021-10-29

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Abstract

The invention discloses a steel pipe with an integrated connection structure, which belongs to the field of steel pipes. A steel pipe with an integrated connection structure is provided with a plurality of inner convex rings and outer convex rings at both ends of the steel pipe. , a pre-sealed cavity can be formed between the outer sealing end and the inner sealing end, and then molten plastic liquid is injected to form an integrated limiting layer filling the concave inner convex ring and the outer convex outer convex ring in the pre-sealed cavity, Realize sealing and fixing. Compared with the existing technology, it can effectively ensure the stability of the joint and effectively avoid the lateral movement of the two steel pipes at the joint. In addition, with the function of self-extensive beam, under the action of high temperature when molten plastic liquid is injected, it can be automatically extended and unfolded, which can be used as a lining to significantly improve the strength and stability of the limiting layer, so that it can be used in When accidental force is applied, the limiting layer is not easy to loosen.
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Description

technical field

[0001] The invention relates to the field of steel pipes, more specifically, to a steel pipe with an integral connection structure. Background technique

[0002] A steel pipe is a steel material with a hollow section whose length is much greater than its diameter or circumference. According to the cross-sectional shape, it can be divided into circular, square, rectangular and special-shaped steel pipes; according to the material, it can be divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; Steel pipes for thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high pressure equipment, etc.

[0003] Existing steel pipes are usually connected by welding or sealed connections through connectors, but the operation of welding is cumbersome, and the joints are prone to cracking when impacted by external forces, resulting in reduced strength. Because the sealed...

Claims

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