【摘要】 选取4小钢厂生产的20G钢板的5项机械性能指标(σs,σb,σ5,Akv,时效),以诸机械性能为标准,用层次分析法对各厂产品进行了综合分析、评价,从而得到了各钢厂20G钢板的质量排序.更多还原

【Abstract】 In this thesis,the mechanical properties indexes:σs,σb,σs,AkV and prescription of 20G steel plates produced in 4 steel factories were selected.By using gradation analysis method,the comprehensive analysis and evaluation were given to these steel plates on the basis of treating the indexes mentioned above as standards.Finally,the order of the 20G steel plates were submitted.更多还原