公开(公告)号：EP1564309B1

公开(公告)日：2015-01-28

申请号：EP03754138.0

申请日：2003-10-15

申请人： Kabushiki Kaisha Riken

发明人： OBARA, Ryou, Kashiwazaki Plant, K.K. Riken ,  TAKIGUCHI, Katsumi, Kashiwazaki Plant, K.K. Riken ,  HOSOTSUBO, Yukio, Kashiwazaki Plant, K.K. Riken

IPC分类号： C23C4/06

CPC分类号： C23C4/06 ,  Y10T428/12 ,  Y10T428/12014 ,  Y10T428/12028 ,  Y10T428/12042 ,  Y10T428/12083 ,  Y10T428/12493 ,  Y10T428/12937 ,  Y10T428/12944 ,  Y10T428/249956 ,  Y10T428/249957 ,  Y10T428/24997 ,  Y10T428/249978 ,  Y10T428/249987

公开(公告)号：EP1564309A1

公开(公告)日：2005-08-17

申请号：EP03754138.0

申请日：2003-10-15

申请人： Kabushiki Kaisha Riken

发明人： OBARA, Ryou, Kashiwazaki Plant, K.K. Riken ,  TAKIGUCHI, Katsumi, Kashiwazaki Plant, K.K. Riken ,  HOSOTSUBO, Yukio, Kashiwazaki Plant, K.K. Riken

IPC分类号： C23C4/04

CPC分类号： C23C4/06 ,  Y10T428/12 ,  Y10T428/12014 ,  Y10T428/12028 ,  Y10T428/12042 ,  Y10T428/12083 ,  Y10T428/12493 ,  Y10T428/12937 ,  Y10T428/12944 ,  Y10T428/249956 ,  Y10T428/249957 ,  Y10T428/24997 ,  Y10T428/249978 ,  Y10T428/249987

摘要： The piston ring of the present invention comprises a thermal spray coating comprising chromium carbide particles having an average particle size of 5 µm or less, and a matrix metal composed of a Ni-Cr alloy or a Ni-Cr alloy and Ni at least on an outer peripheral surface, said thermal spray coating having an average pore diameter of 10 µm or less and a porosity of 8% or less by volume. A piston ring having excellent wear resistance, scuffing resistance and peeling resistance with little attackability on a mating member is obtained by forming a homogeneous thermal spray coating having a fine microstructure.

摘要翻译： 本发明的活塞环包括平均粒径为5μm以下的碳化铬颗粒和Ni-Cr合金或Ni-Cr合金构成的基体金属和Ni的至少在 外周面，所述热喷涂层的平均孔径为10μm以下，孔隙率为8体积％以下。 通过形成具有微细结构的均匀的热喷涂，获得具有优异的耐磨性，抗磨损性和耐剥离性的活塞环，对配合构件具有很小的侵蚀性。