The practice after the feeding pump of hard pitch controlled by belt changed into frequency control of speed in AISC Chemical General Plant is introduced.
介绍了鞍钢化工总厂硬质沥青加料泵皮带调速改为交流变频调速的实际应用过程。
Cast steel pulley with wall unevenness, many hot pitch points and narrow feeding channel is difficult to be fed by setting up a head.
铸钢皮带轮，壁厚不匀，热节点多，补缩通道狭窄，很难用设置冒口的方法给予补缩。
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