近年来,电磁泵在国外日益发展而应用于铝铸件的各种浇注,如金属型或砂型的低压闭型底注以及准确定量重力浇注等。这种浇注具有如下特点: ①电磁泵从液面以下抽吸铝液进行浇注,这样可以防止浮渣和氧化物带进铝液,并且可以防止液面受到搅动,从而减少铝液的氧化损耗。 In recent years, electromagnetic pumps are increasingly developed in foreign countries and applied to the casting of aluminum castings, such as metal or sand-type low-pressure closed-end injection and accurate quantitative gravity casting. This pouring has the following characteristics: ① electromagnetic pump pumped aluminum liquid from below the liquid pouring, so as to prevent scum and oxide into the liquid aluminum, and can prevent the liquid from being agitated, thereby reducing the liquid aluminum oxidation loss.