着重介绍了西门子MM440变频器、S7-300PLC在攀钢集团特种铁合金公司空压机站改造中的应用情况。

This paper highlights the transform principles and applications of Siemens MM440 transducer, S7-300PLC used in the air-compressor station of Pangang Group Beihai special ferroalloy company.

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湖南永鑫铁合金有限责任公司。

Hunan Ferroalloy Yosino limited liability company.

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文章阐述了新钢公司铁合金厂生铁高炉强化冶炼过程中的做法，出现的问题和护炉保产措施。

Measurement of guarding the france and increasing the production in strengthening smelting process of pig iron BF at ferroalloys plant of Xinsteel are expounded.

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