公开(公告)号：US20170261103A1

公开(公告)日：2017-09-14

申请号：US15296310

申请日：2016-10-18

申请人： ASIMCO Shuanghuan Piston Ring(YiZheng) Co., Ltd.

发明人： Yingxue WU ,  Qianxi LIU ,  Yueting ZHOU ,  Bo ZHANG

IPC分类号： F16J9/26 ,  C23C14/34 ,  C23C14/16 ,  C23C16/50 ,  C23C16/26

CPC分类号： F16J9/26 ,  C23C14/06 ,  C23C14/0605 ,  C23C14/165 ,  C23C14/34 ,  C23C16/26 ,  C23C16/30 ,  C23C16/45517 ,  C23C16/50 ,  C23C16/515 ,  C23C28/32 ,  C23C28/341 ,  C23C28/343 ,  C23C28/36

摘要： The present invention relates to a diamond-like coating for piston ring surfaces, comprising, an underlayer, a gradient layer and an AM layer, wherein the AM layer is a diamond-like coating doped with doping elements. The doping elements are one or a combination of at least two selected from the group consisting of Cr, Si and Ti, and the content thereof shows a cyclical change in a form of a sine wave fluctuation along with the thickness change of the AM layer. As compared with the conventional single-layer structure or gradient layer structure, the AM layer of such diamond-like coating has a multi-cycle transition structure since the content of the doping elements in the AM layer of such diamond-like coating shows a cyclical change in a sine wave fluctuation form. On the basis of having high wear-resistant and low friction coefficient, it is beneficial to decrease the internal stress of the coating, increase the tenacity of the coating, ensure the increase of the thickness of diamond-like coating, and improve the durability of piston ring of diamond-like coating at the same time.

公开(公告)号：US20150211635A1

公开(公告)日：2015-07-30

申请号：US14478497

申请日：2014-09-05

申请人： ASIMCO Shuanghuan Piston Ring (Yizheng) Co., Ltd.

发明人： Yingxue WU ,  Qianxi LlU ,  Bo Zhang

IPC分类号： F16J9/26 ,  C23C14/02 ,  C23C14/32 ,  C23C14/06

CPC分类号： F16J9/26 ,  C23C14/0021 ,  C23C14/022 ,  C23C14/025 ,  C23C14/027 ,  C23C14/028 ,  C23C14/0641 ,  C23C14/325 ,  C23C28/322 ,  C23C28/347 ,  C23C28/36

摘要： The invention relates to a multilayer multi-element composite hard PVD coating with low friction coefficient on the surface of a piston ring, a piston ring and a preparation process. The present invention employs vacuum multi-arc ion plating vapor deposition process, which uses multiple multi-arc ion sources, in the combination of equipping with different single metal target material and multi-element target material to deposit multilayer multi-element composite hard PVD coating with low friction coefficient on the surface of a steel or cast iron piston ring. The coating consists of five layers with the total thickness of up to 60 μm. The coating has high adhesion with the surface of piston ring, high hardness, low friction coefficient and good abrasion resistance. By controlling the adding amount of additive elements Al, Mo, W, B, Si and Ti, the friction coefficient of the coating can be further reduced 5 to 20% compared with that of a single TiN or CrN deposited layer.

摘要翻译： 本发明涉及一种在活塞环表面具有低摩擦系数的多层多元复合硬质PVD涂层，活塞环和制备方法。 本发明采用真空多弧离子电镀气相沉积工艺，该方法采用多个多弧离子源，结合不同的单金属靶材料和多元素靶材料组合，沉积多层多元复合硬质PVD涂层 在钢或铸铁活塞环的表面上具有低摩擦系数。 涂层由五层组成，总厚度可达60μm。 涂层与活塞环表面粘合性高，硬度高，摩擦系数低，耐磨性好。 通过控制添加元素Al，Mo，W，B，Si和Ti的添加量，与单个TiN或CrN沉积层相比，涂层的摩擦系数可以进一步降低5至20％。