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通过利用路面铣刨机对砂石料和细砂料进行切削收集试验,研究了市场现有的路面铣刨机产品对戈壁砂土的收集能力。试验表明:将铣刨方法用于戈壁污染砂土收集在技术上是可行的,但为了避免砂土污染物向切削层以下土壤交叉和扩散,应减少砂土刨削收集量,提高其铣削的收集能力,并对现有的路面铣刨机产品进行适当改造。 相似文献
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The concave die design of self-pierce riveting (SPR) is of critical importance for product quality. The optimization of concave die parameters based on orthogonal test is proposed to explore the relationship between self-pierce riveted joint quality and die parameters. There are nine independent die parameter factors in orthogonal test and each factor has 4 levels. In order to evaluate the interlock and neck thickness, we carry out numerical simulations by the software DEFORM-2D. Then, the primary and secondary factors that affect the joint quality have been found out by means of range analysis. Finally, an optimization scheme is brought forward to design concave die in SPR process, which indicates that the joint has higher quality than that of former orthogonal tests. This work can be extended by a detailed mechanical and fatigue analysis for the joint quality of SPR process. 相似文献
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