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生产工艺流程设计经历哪几个阶段?

答案

参考答案:

内容:

(一)确定生产线数目。根据产品方案及生产规模,视生产实际情况,结合投资大小,确定生产线及生产线数目。如果产量大,可采用几条生产线,以便生产调剂,设备护理等试验工艺流程设计

(二)确定生产线自动化程度。生产线有间歇和连续两种。在确定生产线自动化程度时,根据生产特点和技术成熟性,结合生产规模,一般采用先进、经济、合理的自动化生产线,高品质产品生产配以自动化在线检测,以保证产品质量。

(三)工艺流程图的设计。工艺流程图的设计主要包括生产工艺流程示意图,生产工艺流程草图和生产工艺流程图三个阶段。

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Statistics from China (1) be mind boggling: 1.2 billion (2) , 1.73 trillion cigarettes smoked in a year, 7,000 different (3) of woody plants. But amid all of these staggering sums, one factoid stands (4) for both its audacious size and for what it says about China’s future: there are 630 million Chinese under the age of 24. That’s a lot of (5) energy to burn. Materialism may be the (6) preoccupation among China’s young people these days, but just beneath the surface lies a feeling (7) wounded nationalist pride and an ever-deepening spiritual hunger. It isn’t clear where China’s young people are headed. But this is a generation that, by its (8) size and certain talents, will (9) the world’s destiny.
Here’s another sobering statistic: this is Terry McCarthy’s 22nd, and final, cover (10) for TIME Asia-he’s leaving the region (11) three years to become TIME’s Los Angeles (12) chief. McCarthy, who has indefatigably crisscrossed Asia out of his twin bases of Hong Kong and Shanghai, was the main driver (13) this week’s superb special report on young China. He developed the story list, guided much (14) the reporting
and wrote some of the articles. All (15) planning a swank black-tie masked ball last weekend in Shanghai. "I was (16) by the willingness of individual Chinese to write for us or talk about their (17) ," McCarthy says about the special (18) . "These are the guys (19) are going to be running the country in 20 (20) ." If we’re lucky, McCarthy will be back in the region long before then.