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混砂机是铸造行业必不可少的机械设备之一,混砂机刮板刮砂效果的好坏直接影响到混砂机使用效果,要求刮板既要耐磨又要有较好的强度。 本公司有两台S1416型行星转子混砂机,其刮板材料为45号钢,为了增强刮板的耐磨性,在其工作面上堆焊了3mm厚的碳化钨耐磨层。经使用发现存在着两点明显不足:一是耐磨层并不耐磨,用不到一个星期,刮板已严重磨损,混砂机底板结砂严重,功率消耗明显增高;二是刮板强度较差,使用过程中易发生弯曲变形,造成混砂桶壁结砂较厚。
Sand mixer is one of the essential mechanical equipment in foundry industry. The effect of sand scraper scraping sand directly affects the using effect of sand mixer. It requires that scraper not only wear but also have better strength. The company has two S1416 planetary rotor mixer, the scraper material for the 45 steel, scraper in order to enhance the wear resistance, surfacing in its work surface 3mm thick tungsten carbide wear layer. The use of found that there are two obvious deficiencies: First, the wear-resistant layer is not wear-resistant, less than a week, the scraper has been severely worn, sand mixer floor sand serious, significantly increased power consumption; Second scraper strength Poor, prone to bending deformation during use, resulting in sand thick sand bucket wall.