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我单位1995年引进一台美国ASTEC公司生产的AS—160型沥青混凝土搅拌站。此设备整个生产过程为全自动(必要时也可半自动或手动),各斗门的启闭都是通过气体电磁阀动作控制气缸动作来实现的。在使用过程中由于外界施工条件比较恶劣,经常出现气阀卡死、不动作等故障。为此,我们曾取出阀芯进行清洗污尘、加油润滑、研磨等应急处理。对于磨损严重或线圈烧坏时,必须更换电磁阀。在实际生产过程中,我们试着用国产电磁阀代替进口产品,但在替代过程中遇到一些问题,具体情况及措施介绍如下:
In 1995, our company introduced a AS-160 asphalt concrete mixing plant produced by American ASTEC Company. The entire production process for this device is fully automatic (semi-automatic or manual, if necessary), the opening and closing of all Doumen are controlled by the gas solenoid valve action to achieve. In the process of using due to poor external construction conditions, often stuck valve, no action and other failures. To this end, we have removed the spool for cleaning dirt, lubrication, grinding and other emergency treatment. For severe wear or coil burnout, the solenoid valve must be replaced. In the actual production process, we try to use domestic solenoid valve instead of imported products, but in the replacement process encountered some problems, the specific circumstances and measures are described below: