铝铸件在进行制作的过程中对于形状特殊以及尺寸超大的铝铸件，在一定程度上需要用专门设计特殊形状和规格的阳极，铝铸件的型号、形状、尺寸、最大工件电流及配用笔杆 刷镀过程中电化学反应产生的热量与电阻热会使阳极的温度急剧上升,小型阳极可从镀杆 的散热片和镀液带走一部分热量,大型阳极就必须另外增加散热措施。
铝铸件在一定程度上为了防止浇不足的形成，首先就需要设法提高铝铸件液体金属的温度，这样就可以使得金属过热，在一定程度上能够有效的提高其流动性，
并可使金属包留物的析出,必须减少金属中难熔的非金属包留物(铝、铬、硅等氧物、硅酸土、硫化锰等),否则由于它们的存在,将使金属的流性降低,适当控制金属的成分,部分增大其流动性。
铝铸件的含硅量增到3%可提高其流动性,磷也使铸铁的流动性大为增加,增大含碳硅总量,使其化学成分接近共晶点,可使铸铁的流动性提高。改进内浇口的设计,使金属液在型腔内流动距离缩短,或放大内浇口的截面积,使铁水在型腔内的流动速度加快,浇注时间缩短,并在金属液流汇合处设置溢流孔排气孔,其作用能使型内空气容易逸出,也能使过冷的部分铁水溢出。
铝铸件为了防止漏箱，在进行操作时必须要保证其扣箱状态下的砂箱与砂箱紧密相贴,同时在箱与箱之间的接缝四周应没有间隙,塞红砂要紧实牢靠。铸型的各部分应牢固的地彼此紧密地紧固起来,或压压铁以防浇到型内的金属自两半型间隙中流出。如上箱本身的重量小于 P 的话,必须使用附加的压铁,或用固紧的扣箱螺丝固紧。
铝铸件的浇包中应有足够的金属量，这样比较利于填满铸型，在进行浇注的时候，其金属流应不中断，均匀地流入型腔,手动浇包浇铸小铸型时,浇包距浇口的高度一般不应大于100厘米,吊式浇包不大于300厘米。
In the process of making aluminium castings with special shape and extra-large size, it is necessary to use special designed anodes to a certain extent. The type, shape, size of aluminium castings, the maximum workpiece current and the heat and resistance heat generated by electrochemical reaction during brush plating with penholder will cause the temperature of the anode to rise sharply. Small anodes can be obtained from the plating rod. The heat sink and plating solution take away part of the heat, so the large anode must add additional heat dissipation measures.
In order to prevent the formation of insufficient pouring in aluminium castings to a certain extent, it is necessary to increase the temperature of liquid metals in aluminium castings, so that the metal can be overheated and its fluidity can be effectively improved to a certain extent.
In order to precipitate metal inclusions, it is necessary to reduce refractory non-metallic inclusions (such as aluminium, chromium, silicon, oxygen, silicate earth, manganese sulfide, etc.) in metals. Otherwise, because of their existence, metal fluidity will be reduced, metal composition should be properly controlled, and its fluidity will be partly increased.
The fluidity of aluminium castings can be improved by increasing the content of silicon to 3%, and the fluidity of cast iron can be greatly increased by increasing the content of carbon and silicon, making its chemical composition close to eutectic point, which can improve the fluidity of cast iron. Improve the design of inner gate, shorten the flow distance of liquid metal in the mould cavity, or enlarge the cross-section area of inner gate, accelerate the flow speed of molten iron in the mould cavity, shorten the pouring time, and set an overflow vent at the junction of liquid metal flow, which can make the air in the mould easy to escape, and also make the overcooled part of molten iron overflow.
In order to prevent leakage of aluminium castings, it is necessary to ensure that the sand box and the sand box under the condition of fastening box are close to each other. At the same time, there should be no gap around the joint between the box and the box, and the red sand should be stuffed tightly and firmly. The parts of the mould should be firmly and tightly fastened to each other, or pressed iron to prevent the metal poured into the mould from flowing out from the gap between the two halves. If the weight of the upper case is less than P, additional pressing iron must be used or fastened with fastened fastener screw.
There should be enough metal in the pouring ladle of aluminium castings, which is more conducive to filling the casting mould. When pouring, the metal flow should be uninterrupted and evenly flowed into the cavity. When pouring small castings by manual pouring ladle, the height of the pouring ladle distance from the gate should not be more than 100 cm, and the hanging pouring ladle should not be more than 300 cm.
