The invention discloses a boat accessory with a corrosion indication layer. A specific material is adopted for casting forming, the accessory comprises, by weight part, not larger than 2.1 of C, 0.07to 0.09 of P, 2.2 to 2.4 of Mn, 1.7 to 1.9 of Ba, 5.6 to 5.8 of Cr, 4.7 to 4.9 of Ni, 3.5 to 4.5 of Mo, 0.67 to 0.77 of Ti, 2.4 to 2.6 of Cu, 1.3 to 1.6 of Co, 0.9 to 1.1 of V, 0.02 to 0.04 of B and the balance Fe and inevitable impurities, the boat accessory is provided with the corrosion indication layer, and the corrosion indication layer comprises, by weight part, 51 to 65 of Ag, 17 to 25 of Cu, 20 to 23 of Zn, and 8 to 10 of Cd. The invention further provides a manufacturing method. The boat accessory has the strong sea water corrosion resistance, the accessory surface corrosion conditioncan be conveniently and intuitively observed, and overhauling and replacing are facilitated.

    具有腐蚀指示层的船用配件,采用特定材料浇铸成型,以重量份计,含有C≤2.1,P 0.07~0.09,Mn 2.2~2.4,Ba 1.7~1.9,Cr 5.6~5.8,Ni 4.7~4.9,Mo 3.5~4.5,Ti 0.67~0.77,Cu 2.4~2.6,Co 1.3~1.6,V 0.9~1.1,B 0.02~0.04,余量为Fe以及不可避免的杂质;船用配件设置有腐蚀指示层,以重量份计,含有Ag 51~65、Cu 17~25,Zn 20~23,Cd 8~10。还提供了制造方法。本发明的船用配件具有很强的耐海水腐蚀性,便于直观观察配件表面腐蚀状况,利于检修、更换。


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    Title :

    Boat accessory with corrosion indication layer and manufacturing method thereof


    Additional title:

    具有腐蚀指示层的船用配件及其制造方法


    Contributors:

    Publication date :

    2020-07-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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