多触头高压造型是一项新工艺,它是用较高的比压,通过多触头压头压实砂型,从而获得硬度高而均匀的砂型。在批林整风运动的推动下,我厂广大革命职工,为了逐步改变我厂生产的落后面貌,提高造型的机械化程度,设计、制造了这台上压式多触头高压造型机。经过三个月的试生产,证明该机基本上符合工艺要求。我厂在设计这台造型机时,选用了上压式多触头。这是因为:上压式多触头压头,是有若干个小油缸驱动的。控制各排小油缸进油口的开或关,就可以改变压头的尺寸,用于压实不同尺寸的砂型,这适合我厂铸件品种多、批量小、形状不一的生产情况。此外,小油缸加 Multi-contact high-pressure molding is a new technology, which uses a higher specific pressure, through the multi-contact pressure head compaction sand, so as to obtain high hardness and uniform sand. Under the impetus of the campaign of rectification of forestry and wind rectification, a large number of revolutionary workers of our factory have designed and manufactured this type of multi-contact high-pressure molding machine on the pressure in order to gradually change the backwardness of our factory’s production and improve the mechanization of molding. After three months of trial production, that machine basically meet the technical requirements. I plant in the design of this machine, the choice of pressure on the multi-contact. This is because: the pressure on the multi-head pressure head, there are several small cylinder drive. Control each row of small cylinder inlet port on or off, you can change the size of the pressure head for compaction of different sizes of sand, which is suitable for our plant castings and more, small quantities, different shapes of production. In addition, a small cylinder plus