一、概况抛砂机是当今国内外铸造车间生产中、大件单件小批量造型机械化的重要设备之一,具有适应性强、投资少、上马快等优点,所以近十年来愈来愈被广泛采用。抛砂头是抛砂机的关键部件,它藉助高速旋转的叶片的离心力,使型砂紧实成团并获得 First, the overview Sand throwing machine is the production of casting workshop at home and abroad, large pieces of small pieces of one of the important mechanized equipment, with adaptability, low investment, quick start, etc., so more and more over the past decade broadly used. Sand throwing is the key component of the sand throwing machine, which utilizes the centrifugal force of the blades rotating at high speed to make the compact sand compact and obtain