期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Effect of reclaimed sand additions on mechanical properties and fracture behavior of furan no-bake resin sand 被引量:3
1
作者 Yan-lei Li Guo-hua Wu +3 位作者 Wen-cai Liu An-tao Chen Liang Zhang Ying-xin Wang 《China Foundry》 SCIE 2017年第2期128-137,共10页
In this work, the effects of reclaimed sand additions on the microstructure characteristics, mechanical properties and fracture behavior of furan no-bake resin sand have been investigated systematically within the tem... In this work, the effects of reclaimed sand additions on the microstructure characteristics, mechanical properties and fracture behavior of furan no-bake resin sand have been investigated systematically within the temperature range from 25 to 600 oC. The addition of 20%-100% reclaimed sand showed dramatic strength deterioration effect at the same temperature, which is associated with the formation of bonding bridges. Both the ultimate tensile strength(UTS) and compressive strength(CS) of the moulding sand initially increase with the increase of temperature, and then sharply decrease with the further increase of temperature, which is attributed to the thermal decomposition of furan resin. The addition amount of reclaimed sand has a remarkable effect on the room temperature fracture mode, i.e., with the addition of 0-20% reclaimed sand, the fracture mode was mainly cohesive fracture; the fracture mode converts to be mixture fracture mode as the addition of reclaimed sand increases to 35%-70%; further increasing the addition to 100% results in the fracture mode of typical adhesive fracture. The fracture surface of the bonding bridge changes from a semblance of cotton or holes to smooth with the increase of test temperature. 展开更多
关键词 reclaimed sand mechanical properties thermal decomposition fracture mode
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部