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公开(公告)号:US07428862B2
公开(公告)日:2008-09-30
申请号:US11635638
申请日:2006-12-08
Applicant: Richard Rateick, Jr.
Inventor: Richard Rateick, Jr.
CPC classification number: F04B1/124 , F05C2201/046 , F05C2251/10 , F05C2253/12
Abstract: A method of producing a piston that involves providing a piston body formed of a first material, the piston body having a cylindrical portion having a diameter, a rounded end, and a neck connecting the rounded end to the cylindrical portion and having a diameter less than the diameter of the piston body, cladding a portion of the cylindrical portion with a first tool steel layer, cladding a portion of the rounded end with a second tool steel layer spaced from the first tool steel layer, heat treating the piston body and nitriding the first and second tool steel layers. Also a piston (10) having first (18) and second (22) nitrided, tool steel clad portions.
Abstract translation: 一种制造活塞的方法,该活塞涉及提供由第一材料形成的活塞体,所述活塞体具有圆柱形部分,所述圆柱形部分具有直径,圆形端部和将所述圆形端部连接到所述圆柱形部分的颈部,并且具有小于 活塞体的直径,用第一工具钢层覆盖圆筒部分的一部分,用与第一工具钢层隔开的第二工具钢层包覆圆形端部的一部分,对活塞体进行热处理并氮化 第一和第二工具钢层。 还有具有第一(18)和第二(22)氮化的工具钢包层部分的活塞(10)。