The results show that the composites were more wear resistant than the matrix , contributing to the " volume effect " and " size effect " , the wear resistance increases with the particle content and size . the composite shows better wear resistance than high chromium cast iron material especially in low load and fine abrasive test condition . the results also indicate that the composite strengthened by ageing treatment was more wear resistant than as - cast composite 磨损试验结果表明，铸造碳化钨颗粒增强cu - ni - mn合金基复合材料具有比较高的抗磨料磨损能力，而且其耐磨性随着铸造碳化钨颗粒体积分数及尺寸的增大而提高，表现出了强烈的“体积效应”及“尺寸效应” ，尤其是在低载荷、细磨料磨损条件下，复合材料表现出更好的而寸磨性，即使与高铬铸铁( cr28 )相比也有很大程度的提高。
This company produces the knitting center parts uses the material of completely high quality guards against rust the cast alloy iron , adopts the tertiary aging treatment of metal way , namely except hot aging treatment of metal , outside nature aging treatment of metal , each product in processing process , also must pass through the physical vibration aging treatment of metal process , guarantees each product the residual stress finally to obtain the elimination and the equalization 本公司生产的编织中心组件所用材料，全部使用优质防锈合金铸铁，采取三重时效处理方式，即除热师时效处理、自然师时效处理外，每件产品在加工过程中，还要经过物理振动时效处理过程，确保每件产品的残余应力最终得到消除和均化。
Die casting factories need to consider problems in vario us aspects , including not only melting , die casting , cleaning , aging treatment , shot bla st , die , inspection , but also general layout of factories involving logistics , w ater , electricity , fuel , raw materials , purchase , stock and transporation 压铸生产厂需要考虑的问题是多方面的，不仅有熔化、压铸、清理、时效、抛丸、模具、铸件检验等工序，还有工厂的总体布局，牵扯到物流、水、电、燃料及原料的采购、仓储和运输等因素。
