用石膏模型制作耐磨备件的可行性研究

Feasibility Study on Plaster Cast to Make Anti-friction Spare Parts

本文对石膏模型用石膏原材料的选择、脱模剂的选用、耐磨备件制备的工艺方法等进行了简要分析。结果表明，在膏水比为1．3～1．5：1，适量添加增强剂和缓凝剂，用石膏模型制作耐磨备件具有成本低、可操作性强的优点，主要性能指标优于内衬橡胶耐磨备件，可用于耐縻备件的生产。

Selection of the materials of plaster, drawing reagent of patterns, method of wearable spare parts, has been analyzed in this paper. The result shows, it has low cost and maneuverable property in the proportion of 1.3 ～ 1.5 ： 1 of piaster and water, or proper additive of intensifier and retarder. The main properties is excelled than rubber used as a lining of wearable spare parts, it has been suitable for production of wearable spare parts.