Study on development and properties of ceramic metal bond CBN block
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摘要: 目前钢轨打磨使用的主要是树脂砂轮,具有材料去除率低、磨削温度高等问题。因此,利用钎焊超硬磨料技术研制新型陶瓷-金属结合剂CBN磨具,并对比陶瓷-金属CBN结块和树脂锆刚玉结块在相同条件下的磨削性能,如材料去除率、磨屑分布和磨削温度等。试验结果表明:相比于树脂锆刚玉结块,陶瓷-金属结合剂CBN结块的材料去除率可提高124%,磨削温度峰值可降低15~50 ℃。Abstract: Resin bond wheels are mainly used for rail grinding, which have problems such as low material removal rate and high grinding temperature. Therefore, a new ceramic-metal bond CBN block was developed by using brazed super-hard abrasive technology. The grinding performance of ceramic-metal bond CBN block and resin zircon corundum was studied, such as material removal rate, chip distribution and grinding temperature. Results show that compared with the resin zirconium corundum, the ceramic-metal bond CBN block has a 124% higher material removal rate and a 15~50 ℃ lower grinding temperature peak.
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Key words:
- rail grinding /
- resin grinding wheel /
- material removal rate /
- grinding temperature
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