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国内外近几年来,在铸造生产上,为了缩短生产周期,降低产品成本,获得健全铸件,而广泛试制和推广水玻璃砂。但到目前为止水玻璃砂并没有全面为铸造生产服务。这里还存在一些技术问题,如铸件粘砂,除砂困难等尚未取得圆满解决,须作进一步研究。为此将我们厂近几年来在试制和推广水玻璃砂过程中所遇到的问题和体会介绍如下:
In recent years at home and abroad, in the casting production, in order to shorten the production cycle, reduce product costs, access to sound castings, and extensive trial production and promotion of sodium silicate sand. But so far, sodium silicate does not provide full-scale casting services. There are still some technical problems, such as casting sticky sand, sand removal difficulties have not yet been satisfactorily resolved, for further study. To this end our factory in recent years in trial production and promotion of sodium silicate sand encountered problems and experience are described below: