从此告别鼠标手 锥形的蓝牙鼠标你能接受吗？

这是一款奇特的蓝牙鼠标,长得很像马路边的“锥形桶”.左、右键位于锥形一侧的斜面上,并被设计成垂直并列,而鼠标滚轮则与拇指位置对应.

碳化硅磨料生产中连续碱洗酸洗及脱水的研究

本文对国内目前碳化硅磨料生中碱洗、酸洗、脱水工序的工艺及设备进行了分析 ,并针对存在的问题从工艺及设备方面提出了解决方法 ,为磨料的碱洗酸洗、脱水的连续生产开辟了新的途径。

优化浮选环节 提高精煤产率

针对新巨龙公司选煤厂浮选精煤产率降低的问题进行分析,通过对影响浮选机充气控制的充气调节阀进行改造,同时对浮选精矿桶进行改造以延长其缓冲时间,并将锥形桶进行提高。改造后解决了现场存在的问题,提高了浮选精煤产率,增加了企业经济效益。

Rheo-diecasting of AZ91D magnesium alloy by taper barrel rheomoulding process

A self-developed taper barrel rheomoulding(TBR)machine was introduced,and the rheo-diecasting process was implemented by combining TBR machine with the high pressure die casting(HPDC)machine.Microstructural characteristics of the rheo-diecasting components were investigated at different rotation speeds.Flow characteristics and microstructural evolution of the semi-solid slurry during the rheo-diecasting process were analyzed and the mechanical properties of the rheo-diecasting components were studied.The experimental results show that the process is able to obtain such components in which the primaryα-Mg particles are fine,nearly spherical and uniformly distributed in the matrix.When the rotation speed of internal taper barrel is 700 r/min,the primaryα-Mg particles get a mean diameter of about 45μm and a shape factor of about 0.81.The magnesium alloy melt has complex stirring-fixed flow characteristics when flowing in TBR machine.Compared with conventional die-casing process,the rheo-diecasting process can improve the mechanical properties of components;especially,the elongation is improved by 80%.

一种水下逃生装置的设计与应用

目前,传统水下逃生装置系统复杂,制造成本高且占用空间大,一般还需要辅助动力,无法在空间有限的轮船、潜艇、水下生活实施上普及使用。针对上述情况,笔者和他人合作设计了一种水下逃生装置并成功申报了专利,该装置主要包括一个锥形逃生桶和一个与逃生桶的较大端配合且可分离的上盖。该文主要介绍该逃生装置的结构、使用方法及其优缺点,使用该逃生装置,将可以解决目前在空间有限的轮船、潜艇、水下生活实施上逃生的难题。

碳化硅磨料生产中连续碱酸洗及脱水的研究

本文对国内目前碳化硅磨料生产中碱洗、酰洗、脱水工序的工艺及设备进行了分析，并针对存在的问题从工艺及设备方面提出了解决方法，为磨料的碱酸洗、脱水的连续生产开辟了新的途径。