一种轴向载荷承载复合材料管道自增压连接方法
By combining the deformation and heating recovery of the shape memory alloy inner and outer tubes with frictional connection, the connection problem of composite material pipes under axial load is solved, achieving a stable connection and high strength, and avoiding leakage and accidents.
CN115958802BActive Publication Date: 2026-07-17TONGJI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TONGJI UNIV
- Filing Date
- 2022-12-12
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing composite material pipe connection methods cannot effectively withstand axial loads, making the connection points weak points that can easily lead to liquid or gas leaks and accidents.
Method used
The inner and outer tubes are made of shape memory alloy. They are deformed by applying force and restored to their original shape by a heater. The connection is completed by friction, and a contact sensor and temperature detector are used to ensure a stable connection.
Benefits of technology
It achieves a stable connection of composite material pipes under axial load, avoiding leakage and accidents at the connection point, and is simple to operate and requires no special treatment.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115958802B_ABST
Abstract
本发明公开了一种轴向载荷承载复合材料管道自增压连接方法，包括步骤A、将限位环安装于内管的内侧，具体地，位于内管与外管的连接处，步骤B、对内管的外表面施加作用力，使其向内发生形变，同时对外管的内表面施加作用力，使其向外发生形变，步骤C、将内管的连接处放置于外管的内侧，步骤D、使用固定器对内管靠近连接处的部分进行固定，步骤E、驱动加热器对内管进行加热，使其恢复原始形状，同时通过内管将热量传至外管，使外管恢复至原始形状，步骤F、待内管以及外管完全恢复原始形状后，取下固定器，通过内管以及外管之间的摩擦力完成对内管以及外管的连接，本发明，具有连接强度高和操作便捷的特点。
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