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酸性陶土(又称膨润土)在华东各地区翻砂工作中应用得很普遍,但由于各厂使用情况不同,因此结果也不同.为了总结各厂的经验,为了使大家少走些弯路,因此中央第一机械工业部华东办事处在七月中召开了一个关于酸性陶土的座谈会,由各厂分别介绍了使用的情况及目前存在的一些问题.例如有的发现拌砂时没有先经过干拌,结果容易结成一块块的团子;有的发现砂型烘干后较松,易发生掉砂现象;也有的发现陶土砂烘干后易裂.通过这次座谈会以后,这些情况基本上巳获得了解决。本文是中国纺织机械厂丁鸿远同志在会上介绍该厂使用酸性陶土经验的报告,内容着重说明使用酸性陶土时最易发生的毛病(也正是各厂存在的一些问题),以及如何分析解决,这些都是很宝贵的经验,因此介绍给大家参考.读者们:希望你们将使用酸性陶土的经验和结果也能告诉我们.使这—经验能更丰富、更充实起来,在祖国大规模经济建设中发挥更大的作用.
Acid clay (also known as bentonite) is widely used in sand turning work in various regions of East China, but the results are also different due to the different usage of the factories. In order to summarize the experience of each plant and make everybody take less detours, An East China Office of the Ministry of Machinery Industry held a symposium on acid clay in mid-July. The factories introduced the use cases and some existing problems respectively. For example, some found that mixing sand without first mixing, The result is easy to form a lump of lumps; some found that the sand is loose after drying, prone to falling sand phenomenon; some also found that clay sand after drying easy to crack. After the symposium, these have basically been resolved . This article is a speech made by Comrade Ding Hongyuan, a Chinese textile machinery factory, who introduced the factory’s experience in using acid clay at the conference. The report focuses on the problems that are most apt to occur when using acid clay (also the problems existing in each factory), and how to analyze, These are all very valuable experiences and are therefore for reference.Readers: I hope you will also tell us about the experience and the result of using acid clay so that this experience can be enriched and enriched, and the large-scale economic construction in the motherland In the play a greater role.