当前由于内振拉模比外振拉模的振动力大,生产效率高,噪声小,产品优质品高,质量合格率可在98％以上,而且生产成本比挤压机生产要低得多,一台双联内振拉模一般一年内就可收回投资还有盈利,维修也相当简便等等,所以,这种新型多孔板拉模被称为八十年代预应力空心板生产的理想设备,受到越来越多厂家的应用和推广。但就我所了解的情况看,还存在着一个较普遍的问题,即“大马拉小车”。为此就这个问题作一些探讨,供同行们参考。现今的内振拉模基本上都是一种机械式 At present, due to the internal vibratory puller’s higher vibratory force than the external vibrating puller, high production efficiency, low noise, high product quality, and a qualified rate of more than 98%, the production cost is much lower than that of the extruder. A double internal vibration pull mold can generally recover the investment within one year, as well as profits, and the maintenance is also very simple. Therefore, this new type of perforated plate drawing die is known as the ideal equipment for the production of prestressed hollow core plates in the 1980s. By more and more manufacturers of applications and promotion. However, as far as I know, there is still a relatively common problem, namely, “big horse-drawn cars.” To this end, make some discussion on this issue for your colleagues. Today’s internal vibration mold is basically a mechanical type