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<p>一套注塑模用了2万模次,滑块开始出现烧死现象。滑块材料是Cr12MoV,HRC58-60。拆开看了导滑面有拉伤,润滑道没堵。怀疑是斜导柱孔磨损导致侧向力增大。请问各位老师傅,除了换滑块,有没有补救措施?</p>
<p>滑块烧死我们也遇到过。除了你说的斜导柱孔磨损,还有一种可能是滑块材料热处理回火不充分。Cr12MoV如果回火次数不够,残余奥氏体在使用中会转变成马氏体,导致尺寸变大。建议重新测一下滑块硬度和尺寸,如果没变就检查斜导柱孔的同心度。</p>