一、前言建国以来,铸造机械设备随着机械工业的发展而相应地发展着,但是发展的速度还跟不上机械工业的发展。在一些老的企业里大部份是五十年代的设备,普遍地存在着设备老旧,构成落后,技术水平低。这些年来虽然对一些老设备进行了一些更新改造,但是由于缺乏对设备明确的更新改造政策和长远目标,使设备更新改造达不到预计的目 I. Foreword Since the founding of the People’s Republic of China, casting machinery and equipment have developed correspondingly with the development of the machinery industry, but the pace of development has not kept pace with the development of the machinery industry. In some old companies, most of them are equipment of the 1950s. There are generally old and outdated equipment, lagging behind, and low levels of technology. Although some old equipments have been renewed and reformed over the years, due to the lack of clear updating and reforming policies and long-term goals for equipment, equipment upgrades and reconstructions have not reached the expected goals.