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曲轴采用中频旋转淬火新工艺具有下列优点:淬火质量好,可获得均匀的硬化层宽度、深度和表面硬度的分布,轴颈油孔对淬火裂纹的敏感性较小,提高曲轴的疲劳强度,便于实现淬火过程的机械化和自动化。从73年开始,我们对这种新的淬火方法进行了一系列的工艺试验,设计制成了曲轴旋转淬火机床。淬火机床的设计,要求在曲轴每个轴颈上有一套变压器——感应器组件,且并排排列,通过感应器上的三对定位块跨接在曲轴轴颈上。这样,变压器的厚度尺寸就受到曲轴轴颈间轴向距离的限制;同时,对于连杆
The new technology of IF crankshaft crankshaft has the following advantages: good quenching quality, uniform distribution of hardened layer width, depth and surface hardness, less sensitivity of journal hole to quenching crack, improved fatigue strength of crankshaft, Mechanization and automation of the quench process. From the beginning of 73, we conducted a series of technological tests on this new quenching method and designed a crankshaft rotary quenching machine. The design of a quench machine requires a transformer-inductor assembly on each journal of the crankshaft, arranged side-by-side and spanned by three pairs of detents on the inductor across the journal of the crankshaft. In this way, the thickness of the transformer is limited by the axial distance between the crankshaft journal; at the same time,