The invention relates to the technical field of anchor chain structures, and discloses a high-corrosion-resistance bimetal composite anchor chain and a preparation method thereof.According to the bimetal composite anchor chain, a stainless steel coating, an alloy middle layer and a carbon steel base layer are combined together in a hot rolling compounding mode, and the stainless steel coating and the alloy middle layer are in concave fit; the carbon steel base layer and the alloy middle layer are in concave fit. The alloy middle layer comprises Ni, Cu and P, and the content of Ni at the concave structure is far lower than that at the plane structure. The bimetallic composite anchor chain provided by the invention not only has high corrosion resistance of the stainless steel coating layer, but also can maintain high strength of the carbon steel base layer, carbon elements can be more effectively prevented from diffusing from carbon steel to stainless steel by the concave structure and distribution and content of Ni, Cu and P of the NiCuP alloy intermediate layer, and cathode protection can be performed on the stainless steel coating layer.

    本申请涉及锚链结构技术领域,公开了一种高耐蚀双金属复合锚链及其制备方法,该双金属复合锚链将不锈钢覆层、合金中间层及碳钢基层通过热轧复合的方式结合在一起,其中不锈钢覆层与合金中间层形成凹陷配合,碳钢基层与合金中间层形成凹陷配合。合金中间层包括Ni、Cu和P,凹陷结构处Ni的含量远低于平面结构处。本申请提供的双金属复合锚链既拥有不锈钢覆层的高耐腐蚀性,又能保持碳钢基层的高强度,其凹陷结构和NiCuP合金中间层Ni、Cu、P的分布及含量都可更有效地阻挡碳元素从碳钢向不锈钢扩散,且可对不锈钢覆层进行阴极保护。


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    Title :

    High-corrosion-resistance bimetal composite anchor chain and preparation method thereof


    Additional title:

    一种高耐蚀双金属复合锚链及其制备方法


    Contributors:
    HANG PENGWEI (author) / LI LUYAN (author) / HUA CHANGJIN (author) / LIN SHIQIAO (author)

    Publication date :

    2025-02-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B21B Walzen von Metall , ROLLING OF METAL / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / C22C Legierungen , ALLOYS




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