6ES7321-1BH02-0AA0

6ES7321-1BH02-0AA0可以说，中国数控机床研制工作几乎是与同步的，虽然起步较早，但初期数控机床技术研究和产业发展基本上处于一种封闭状态，从1958年到1978年改革开放前，数控机床关键技术研究开发及产业发展缓慢。相对于美、日和欧洲先进工业国家在70年代末和80年代初就已实现了机床产品的数控化升级换代，我国的机床数控化进程到70年代末才刚刚开始，并且这一升级换代过程历经了多重曲折困难，直到30多年后，机床工业的产品数控化升级换代才得以实现。

1978年后，随着国家的改革开放，我国数控机床进入一个新的发展时期，初步建立产业体系并推进产业化。80年代初期，通过引进数控系统、机床主机技术，并与国外公司联合设计，我国开始研制和生产数控机床，例如：青海第一机床厂根据机械工业部安排与日本FANUC合作，研制成功国内第1台卧式数控加工中心XH754 (1980年)；北京机床研究所与北京第三机床厂合作研制成功国内JCS-FMC-1/2卧/立式加工柔性单元，北京机床所与日本FANUC合作研发的我国第1条回转体加工柔性制造系统投入生产；南京机床厂与德国TRAUB公司合作生产TND360数控车床，成批量应用于生产；北京航空航天大学研制的国内首台微型计算机数控系统 CNC-4D 成批量成功应用于航空企业XK5040铣床的数控化改造(1983年)。“六五”期间(1981~ 1985)，对数控机床采用直接从国外“引进技术”的方式，通过许可证贸易、合作生产、购进样机等方式，引进数控机床及相关技术183项，开发出数控机床新品种81种，累计可供品种达113种，这成为我国数控机床从展品、样机走向商品的一个分水岭。

6ES7321-1BH02-0AA0

NetApp FAS960 w/ (56) 144GB 10K 8TB Network Appliance

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NetApp FAS960 w/ (84) 144GB 10K 12TB Network Appliance

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6ES7321-1BH02-0AA0