【摘要】 试验用 β淀粉作主粘结剂的芯砂制出了能用于铸铁件生产的壳芯 ,可以认为 ,以天然淀粉作芯砂主粘结剂用于铸造生产是完全可能的。通过扫描电镜等手段探讨了淀粉砂的成壳机理、能够形成强度的原因以及耐高温性能等。更多还原

【Abstract】 In the course of this experiment,core starch (β starch) was used to be as the principal binder of shell core for making iron castings.This research inquired into the shell mechanism of starch sand,the strength mechanism and its high temperature properties.更多还原