采用低压磨料水射流对高效率、高精度、高表面质量的CBN(立方氮化硼)砂轮进行了研究。喷射系统压力为3.8MPa,工作液体为5％的乳化液,喷射介质为80~#白刚玉,修锐CBN120 B 100的砂轮,实验证明效果良好。在3.8MPa较低系统压力下,可以对树...采用低压磨料水射流对高效率、高精度、高表面质量的CBN(立方氮化硼)砂轮进行了研究。喷射系统压力为3.8MPa,工作液体为5％的乳化液,喷射介质为80~#白刚玉,修锐CBN120 B 100的砂轮,实验证明效果良好。在3.8MPa较低系统压力下,可以对树脂粘结剂CBN砂轮进行修锐;喷嘴安装位置决定于磨料射入角、修锐参数及砂轮CBN含量;喷嘴直径为1.5mm、液流喷嘴直径为0.7mm、磨料供给率为7g/s时,其修锐效果最好;喷嘴进给速度越低,效果越好,但修锐时间增加。展开更多
The effects of restricting petterns of rectangular aerostatic guideway, restricitng orifce, spread of restricting orifices, size of air cavity and making tiny groove on the air foating surface etc, on the function of ...The effects of restricting petterns of rectangular aerostatic guideway, restricitng orifce, spread of restricting orifices, size of air cavity and making tiny groove on the air foating surface etc, on the function of aerostatic guideway are analyzed by applying the method of finite element. This also provides a theoretical evidence for the design of rectangular guideways. The non-linear pressure equation set of finite element are sovled by using Newton metehod which guarantees quick and satisfactory convergence, high precision computation and wide range of applications.展开更多
本文研究了CBH砂轮磨削轴承钢GCr15时的磨削温度和磨削烧伤问题.实验中应用热像仪(Thermal Video System)测量磨削温度.通过正交试验求出了磨削温度与磨削用量之间的关系.以工件表层显微硬度变化作为判别烧伤的依据.初步探讨了工件烧伤...本文研究了CBH砂轮磨削轴承钢GCr15时的磨削温度和磨削烧伤问题.实验中应用热像仪(Thermal Video System)测量磨削温度.通过正交试验求出了磨削温度与磨削用量之间的关系.以工件表层显微硬度变化作为判别烧伤的依据.初步探讨了工件烧伤机理、提出了CBN砂轮磨削时A_p的临界值.展开更多
文摘采用低压磨料水射流对高效率、高精度、高表面质量的CBN(立方氮化硼)砂轮进行了研究。喷射系统压力为3.8MPa,工作液体为5％的乳化液,喷射介质为80~#白刚玉,修锐CBN120 B 100的砂轮,实验证明效果良好。在3.8MPa较低系统压力下,可以对树脂粘结剂CBN砂轮进行修锐;喷嘴安装位置决定于磨料射入角、修锐参数及砂轮CBN含量;喷嘴直径为1.5mm、液流喷嘴直径为0.7mm、磨料供给率为7g/s时,其修锐效果最好;喷嘴进给速度越低,效果越好,但修锐时间增加。
文摘The effects of restricting petterns of rectangular aerostatic guideway, restricitng orifce, spread of restricting orifices, size of air cavity and making tiny groove on the air foating surface etc, on the function of aerostatic guideway are analyzed by applying the method of finite element. This also provides a theoretical evidence for the design of rectangular guideways. The non-linear pressure equation set of finite element are sovled by using Newton metehod which guarantees quick and satisfactory convergence, high precision computation and wide range of applications.
