ANEL DE PISTÃO

申请公布号：BR102013004749(A2)

申请号：BR20131004749

申请日期：2013.02.27

申请公布日期：2014.10.07

申请人：

MAHLE METAL LEVE S/A;MAHLE INTERNATIONAL GMBH

发明人：GISELA ABLAS MARQUES

分类号：F02F5/00;C22C38/20;C23C8/26;C23C14/04;F16J9/00

主分类号：F02F5/00

摘要：<p>ANEL DE PISTÃO. A presente invenção refere-se a um anel (10) de pistão para aplicação como anel de compressão em motores a diesel dotados de potência superior de pelo menos 190 kW. Como particularidade da invenção tem-se uma base (1) metálica à qual é associada uma primeira camada exterior (3) deslizante e uma camada intermediária (2) posicionada entre a base (1) e a camada exterior (3), a base (1) sendo composta por um aço compreendendo 0,51% a 0,59% de carbono, 1,20% a 1,60% de silício, 0,60% a 0,80% de manganês, 0,60% a 0,80% de cromo, um máximo de 0,030% de fósforo, um máximo de 0,025% de enxofre, um máximo de 0,12% de cobre e o restante de ferro. O anel (10) da presente invenção apresenta elevada robustez necessária para resistência à fratura, mantendo elevada conformabilidade com vista a facilitar a configuração geométrica do anel, mesmo em geometrias complexas, evitando os problemas de produção dos anéis de ferro fundido e mantendo ainda assim um custo competitivo.</p>

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