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钛是适合制造赛车零件的最轻、最紧固的金属之一。可是,由于它相对较软(硬度为Rc28)从而限制了它的应用。不经专门表面硬化或镀层的许多钛制零件如凸轮推杆、紧固件、花键轴、气门、离合器部件和活塞(处于重载动态连接)不能提供令人满意的性能。镀钛零件已经应用,但镀层易磨损或以其他方式而损失,解决的办法是表面硬化处理。传统的处理方法不能提供或靠的硬化深度,如离子渗氮工艺虽然能获得高于Rc70的表面硬度,但其渗透深度仅有25μm;而采用离子移植技术也能获得同样的硬度,但深度只有10μm。这两种工艺都
Titanium is one of the lightest and tightest metals for racing parts. However, its application is limited by its relatively soft (Rc28) hardness. Many titanium parts, such as cam followers, fasteners, spline shafts, valves, clutch components and pistons (in heavy duty dynamic connections) without special surface hardening or plating can not provide satisfactory performance. Titanium parts have been applied, but the coating is easy to wear or otherwise lost, the solution is to surface hardening. Conventional treatments do not provide or depend on the depth of hardening. For example, ion nitriding can achieve higher surface hardness than Rc70, but its penetration depth is only 25μm. However, the same hardness can be obtained by ion implantation but the depth is only 10 μm. Both of these processes are