摘要
为防止硫化后轮胎出现胶边问题,以铜基石墨合金的轮胎模具滑板为研究材料,借助扫描电子显微镜以及能量分析谱仪分别观察光滑表面石墨的分布及摩擦表面沟槽特点,发现摩擦表面脱落颗粒及剥落块直接影响不同阶段材料的磨损率。通过往复式摩擦磨损试验确定滑板在试验载荷下的磨损率,修正Archard磨损模型的系数,得到铜基石墨合金的合理的磨损模型,设定载荷模拟计算滑板在锁模瞬间的磨损率。结果表明,滑板在锁模的瞬间磨损量决定了滑板的使用周期。
The copper-graphite alloy,the material of wearing plate of tire mould was investigated in the reciprocating wear test to prevent rubber side problems after vulcanization.The distribution of graphite on the smoother surface and the characteristics of grooves on rubbing surface were evaluated using SEM and EDS,respectively.It was found that the wear debris and spalling blocks had direct effects on the material wear rate at different stage.The wear rate of wearing plate under test load was determined,the coefficient of Archard was corrected,and the reasonable wear model was obtained by the reciprocating wear test.The wear rate at the moment of mould clamping was obtained through numerical analysis.The results showed that the service cycle depended on the wear extent at the moment of mould clamping.
作者
胡海明
夏鹏健
HU Hai-ming;XIA Peng-jian
出处
《模具技术》
2019年第1期32-38,共7页
Die and Mould Technology
