我们在潮模砂中加入适量的硫酸铝(称之为铸钢潮模砂),能有效地防止铸钢件粘砂,铸件容易清理,并节约天然气,缩短工序时间,改善作业环境、降低生产成本,取得了较好的技术经济效益。 We add an appropriate amount of aluminum sulfate in the tide mold sand (called the tidal mold steel sand), can effectively prevent the steel casting sticky sand, easy to clean castings, and save natural gas, shorten the process time and improve the operating environment and reduce production Cost, made a better technical and economic benefits.