贺德克液压滤芯的骨架的选择主要依赖的是滤芯的工作环境，介质的腐蚀性来决定的。常见的骨架材质有:碳钢、不锈钢板、铝板。碳钢使用的是Q235冲孔板，使用于一般液液压滤芯，碳钢表面镀锌处理用于防锈蚀，但是防锈能力有限，碳钢的液压滤芯骨架运用在一般液压油和矿物质油等无腐蚀的介质中。不锈钢冲孔板有SUS201、SUS304、SUS316几种冲孔板规格，抗腐蚀性高，可以用于水和强酸碱溶液介质之中，有较高的耐锈蚀能力。铝板型号为LY11，铝板有一定的抗腐蚀性，强于碳钢，但是铝板本身强度差，承压能力有限，不适于做高压环境的液压滤芯骨架。
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