Oil pump is usually made using cast iron. This makes the oil pump to be heavy. Oil pump has a function to suck fluid from a container and pull it out. Oil pump consists of several components, including the impeller, the pump house, pump house close, pipes in, pipes out, stalk player (handle), lock the drum, bolt and seal.
In the market, the oil pump is sold as a whole, so if there is damage to one part only, the pump does not work anymore, and consumers are forced to buy a new pump.Therefore, the producers began trying to separate the oil pump on the manufacture of components.
At first, the manufacture of the components of the oil pump is made with cast iron materials. However, the manufacture of components of the oil pump has the disadvantage that it felt brittle, so easy to crack if exposed to impact. Departing from the above facts, it is necessary to study other metals can be used other than cast iron.
Research is underway to make the component parts of the oil pump using sand molds, while to replace cast iron materials with lighter material, selected aluminum alloys. In addition to aluminum, the metals can be used in a sand mold casting process include iron, steel, copper, bronze, brass or metal alloy. The reason is to cover the replacement of material weaknesses in the manufacture of the oil pump components of cast iron, which is brittle.
Part of the oil pump to be made in this study is the handle, lock and impellers. Handle is a function of oil pump impeller rotating components within the pump house. This handle must have enough power for rotating the handle at the moment due to tensile stress arising from the labor of human hands. While the pump impeller is part of the house that can rotate due to rotation of the handle. The impeller shall be resistant to corrosion.While the lock is a component of the oil pump which serves to hold the pipe that goes into the drum can not move, making it easier for the rotating handle.
The process of making the above components using the sand casting process. Excess of the sand mold casting method is a relatively inexpensive cost compared to the method of cast iron, which is also relatively easy operation, can make even complex components, and can make a large size components.