公开(公告)号：EP3173637B1

公开(公告)日：2018-11-14

申请号：EP16200398.2

申请日：2016-11-24

申请人： BRP-Rotax GmbH & Co. KG

发明人： FUCHS, Thomas ,  WIESER-CHRISTIAN, Uwe ,  NEMESCH, Jürgen

IPC分类号： F16C9/04

CPC分类号： F16C9/045 ,  C23C8/26 ,  C23C8/80 ,  F02F1/24 ,  F16C3/06 ,  F16C3/12 ,  F16C7/00 ,  F16C7/023 ,  F16C2223/14 ,  F16C2360/22

摘要： A fracture-separated engine component and a method for manufacturing same is described. Prior to fracture separation, the engine component is case-hardened by nitriding and has a nitriding hardness depth of 0.4 to 0.7 mm. After the nitriding, the engine component is cooled such that each one of the subsequent fracture surfaces (6) reaches a temperature below -100°C. The fracture separation is then performed. After fracture separation, the engine component has two fracture surfaces along a fracture plane, the fracture surfaces having hardened peripheral areas and unhardened core sections. No point of the unhardened core sections located in the fracture plane is located at a distance of more than 1.1 mm from the nearest hardened peripheral area. Each one of the fracture surfaces has a cross sectional face comprising elongated partial fracture surfaces with a width of less than 3.2 mm.

公开(公告)号：EP3173637A1

公开(公告)日：2017-05-31

申请号：EP16200398.2

申请日：2016-11-24

申请人： BRP-Rotax GmbH & Co. KG

发明人： FUCHS, Thomas ,  WIESER-CHRISTIAN, Uwe ,  NEMESCH, Jürgen

IPC分类号： F16C9/04

CPC分类号： F16C9/045 ,  C23C8/26 ,  C23C8/80 ,  F02F1/24 ,  F16C3/06 ,  F16C3/12 ,  F16C7/00 ,  F16C7/023 ,  F16C2223/14 ,  F16C2360/22

摘要： A fracture-separated engine component and a method for manufacturing same is described. Prior to fracture separation, the engine component is case-hardened by nitriding and has a nitriding hardness depth of 0.4 to 0.7 mm. After the nitriding, the engine component is cooled such that each one of the subsequent fracture surfaces (6) reaches a temperature below -100°C. The fracture separation is then performed. After fracture separation, the engine component has two fracture surfaces along a fracture plane, the fracture surfaces having hardened peripheral areas and unhardened core sections. No point of the unhardened core sections located in the fracture plane is located at a distance of more than 1.1 mm from the nearest hardened peripheral area. Each one of the fracture surfaces has a cross sectional face comprising elongated partial fracture surfaces with a width of less than 3.2 mm.

摘要翻译： 描述了一种断裂分离的发动机部件及其制造方法。 在断裂分离之前，发动机部件通过渗氮​​进行表面硬化并具有0.4至0.7mm的氮化硬度深度。 在氮化之后，发动机部件被冷却，使得后续断裂表面（6）中的每一个都达到低于-100℃的温度。 然后执行断裂分离。 断裂分离后，发动机部件沿断裂面具有两个断裂表面，断裂表面具有硬化的周边区域和未硬化的芯部分。 位于断裂平面内的未硬化的核心部分的点没有位于离最近的硬化周边区域大于1.1mm的距离处。 每个断裂表面具有横截面，该横截面包括宽度小于3.2mm的细长的局部断裂表面。