立方氮化硼砂轮制备技术的多型性

Diversity of Manufacturing Technology of cBN Grinding Wheel

该文是一篇包括纳米陶瓷结合剂、消失模铸造法制备铸铁基、成孔陶瓷结合剂、磨料有序化排布、自润滑单层钎焊、CFPR、热管等砂轮内容的综述文章。指出:纳米陶瓷结合剂不仅可以解决目前陶瓷结合剂低熔点与高强度之间的矛盾,且对于拓宽cBN砂轮的应用范围具有十分重要的意义;分别研究了EPS珠粒的预发泡、珠粒熟化和干燥时间、有机胶黏剂PVB质量浓度;磨粒有序化排布的发展为解决钛合金磨削问题提供了新的思路;与无自润滑剂相比,磨削温度不超过440℃;CFRP砂轮能减少能源消耗,具有较好的经济环保特性;热管砂轮能将磨削弧区温度控制在100℃以下。

This paper is an overview about some aspects of grinding wheel such as nano-vit- rified bond, iron matrix by evaporative pattern casting process, pore-forming vitrified bond, regular distribution of abrasives, self-luhricating braze of monolayer, CFRP and thermotube. It points out that Nano-vitrified bond can not only solve the contradiction be- tween low melting point and high strength of the current vitrified bond, but also has a great significance for widening the application of CBN grinding wheel; Prefoaming of EPS beads, curing and drying time of the beads and mass concentration of organic adhesive PVB have been studied separately; Development of the regular distribution of abrasives contributes a new idea to solve the grinding problem of titanium alloy; Compared to non self-lubricating technology, the grinding temperature is less than 440℃ ; CFRP grinding wheel is energy-saving, economical and environmental friendly; Thermotube grinding wheel can keep the temperature in grinding arc zone under 100℃.