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随着我国石油工业的蓬勃发展,各种各样的粘结剂应运而生,但如何研制一种性能良好、价格低廉的铸造用粘结剂,以代替亚麻油、桐油来配制芯砂,是我们广大铸造工作者迫切的顾望。在这方面上海交大铸工教研组研制了JD—1型复交粘结剂,用这种粘结剂配制的芯砂(简称复交砂)具有强度高、发气量低、退让性好,出砂容易,综合成本低等一系列优点。一年来全国不少工厂成功地将JD—1型粘结剂应用于有色金属铸件的砂芯,交大机械厂已广为使用这种粘结剂,结果满意,工人欢迎。
With the vigorous development of China’s oil industry, a variety of adhesives came into being, but how to develop a good performance, low cost casting binder to replace linseed oil, tung oil to prepare the core sand is Our majority of foundry workers urgently look forward. In this regard, Shanghai Jiaotong University Casting Teaching and Research Group has developed JD-1 type of compound adhesive, prepared with this binder core sand (referred to as the complex sand) with high strength, low gas yield, good concession, easy sand, integrated Low cost and a series of advantages. In the past year, many factories across the country successfully applied JD-1 binder to the sand core of non-ferrous metal castings. Jiaoda Machinery Factory has widely used this binder with satisfactory results and welcomed by workers.