磨床进给系统采用英制长度计量单位的一些问题

• 作 者: 梁仁圻
• 机 构: 上海机床厂,
• 出 处: 磨床与磨削
• 发表日期: 1982年04期
• 关键词: 长度计量 进给系统 英制单位 国际计量局 螺距误差 英制螺纹 刻线 砂轮架 交换齿轮 刻度值

长度计量单位主要有米制和英制两种,世界上除了英、美两国采用英制单位外,其它国家都采用米制。国际计量局早在1927年就已正式通过,以米制为国际通用的长度计量单位。由于大势所趋,更主要的是要在对外贸易中获得更多份额,英国已逐渐取消英制,改用米制;

The length of the main units of measurement in metric and British two, the world in addition to Britain, the United States using the British unit, the other countries are using the metric system. As early as 1927, the International Bureau of Metrology had formally adopted the metric system as the international unit of measurement of length. Because of the trend of the times, what is more important is to obtain more shares in foreign trade. Britain has gradually canceled the British system and switched to the use of rice.