本文根据反复试验的大量数据,分析、研究、比较了我国现使用最多的郑州油化厂、太原兴安厂四种呋喃树脂砂的部分工艺性能;提出了加入偶联剂提高树脂砂强度的作用及机理;试验研究了不同固化剂、不同气温、相对湿度等情况下,对树脂砂性能及可使用时间的影响;提出了在实际生产中,根据要求的工艺性能、可使用时间、不同固化剂的加入量和配料比。为单件小批生产铸钢件,使用呋喃树脂砂提供了技术准备条件。 In this paper, based on a large number of trial and error data, we analyzed and studied the technical performance of four furan resin sands in Zhengzhou Petrochemical Plant and Tai’an Xing’an Plant which are the most widely used in our country. The effect of adding coupling agent to improve the strength of resin sands is also discussed. Mechanism; the experimental study of different curing agents, different temperatures, relative humidity and other circumstances, the performance of resin sand and can affect the use of time; in the actual production, according to the requirements of the process performance can be used time, different curing agent Add amount and ingredients ratio. Small pieces for the production of steel castings, the use of furan resin sand provided technical conditions.