我厂铸工车间1967年曾自制三台辗盘直径为1500毫米的非标准混砂机,投产以来,使用正常,但内外刮砂板磨损严重,试用过的铸铁、钢板等内外刮砂板,最短寿命2～3天,最长的一个月左右,这不仅给生产带来麻烦,而且浪费材料,型砂质量也不稳定。为此,在车间党支部领导下,发挥以工人为主体的三结合作用,在内外刮砂板的下沿面及外侧边,镶焊了废硬质合金片。废硬质合金片是由山岩石风钻钎头上取下的废品,从某铁矿买进的,牌号YG8或YG6,图1为废硬质合金片的测绘尺寸。 Our factory foundry workshop made three sets of non-standard sand mills with a diameter of 1,500 mm in 1967. Since its start-up, the mill has been used normally. However, both inside and outside the scraper have serious wear and tear. The tried and tested scraps such as cast iron and steel plate have the shortest Life of 2 to 3 days, the longest month or so, which not only bring trouble to production, but also waste materials, sand quality is not stable. To this end, under the leadership of the party branch in the workshop, the three-part combination of taking the workers as the main body is demonstrated. Inlaid carbide plates are inlaid and welded on the lower and upper sides of the scraper. Waste cemented carbide piece is a piece of rock scrap removed from the rock drill bit, purchased from a certain iron ore, grade YG8 or YG6, Figure 1 is scrap hard alloy sheet mapping size.