一种铝钢过渡结构及其制造方法和应用

By using friction welding to create through holes and blind holes in aluminum alloy plates and steel plates, and connecting them with friction plugs, the problem of intermetallic compounds caused by explosive welding was solved. This achieved a stable connection and defect repair of the aluminum-steel transition plate, improving the service life and safety of the hull.

CN117818161BActive Publication Date: 2026-07-17HANGZHOU DIANZI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU DIANZI UNIV
Filing Date
2024-01-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the explosive welding method of aluminum-steel transition plates leads to the formation of intermetallic compounds, which affects the bonding strength and the welding quality is unstable and difficult to repair. In particular, in complex structures, there are problems such as uneven welds and difficult repairs.

Method used

Friction welding is employed, which involves creating through holes and blind holes in aluminum alloy plates and steel plates, and using friction plugs of the same material for friction welding to form a semi-enclosed space. The intermetallic compound generated by friction welding is used to fix the connection, preventing it from breaking due to deformation and enhancing the connection strength.

Benefits of technology

It achieves a stable connection between aluminum and steel transition plates, avoids the negative impact of intermetallic compounds on strength, ensures controllable welding quality, is suitable for complex structures, and can repair defects in installed aluminum-steel composite plates, thereby improving the stability and safety of the hull.

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Abstract

本发明专利公开了一种铝钢过渡结构,其包括上层铝合金板(1)、下层钢板(2),铝合金板和钢板的连接处,开孔并设有与上层铝合金板同质材料的摩擦塞棒(3),将上层铝合金板(1)与下层钢板(2)焊在一起。使用上层铝合金板同质材料的摩擦塞棒(3)焊接,有效减小其过渡板的焊接间隙的腐蚀程度。其摩擦塞棒(3)在摩擦焊时,发生固相反应,所产生的铝合金化合物填至其倒角坡口(4)中,通过两层坡口设计,使得铝合金板(1)和钢板(2)的焊接更加牢固。使用摩擦焊工艺,可以通过多点焊接的方式实现过渡板的焊接。本发明的铝钢过渡板用于船舶铝合金上层建筑与钢主船体的连接和类似结构其他同类需求。
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