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.
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.
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。