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目前在砖瓦工业中,砖坯的成型,采用手工制坯的还占很大的比重,据河北省不完全的统计,砖坯成型采用手工制坯约占80%左右,因此,要提高青、红砖的产、质量,对手工制坯的操作技术和管理制度等方面,就应加以必要的重视.现将我们几年来摸索的一些体会提供参考. 一、手工制坯的一些具体操作技术问题: 1.普通粘土原料的准备和处理: ①对粘土原料颗粒组成的要求:根据苏联科学界的多次分析,得知一般粘土的颗粒组成如下:
At present, in the brick and tile industry, the formation of bricks and bricks also takes up a large proportion of hand-made billets. According to the incomplete statistics of Hebei Province, bricks are formed by hand-made billets and account for about 80%. Therefore, green and red are to be improved. The production and quality of bricks, the operation techniques and management systems for hand-made billets, etc., should be given due attention. Now we will provide some references for our experience in the past few years. I. Some specific operations for hand-made billets Technical problems: 1. Preparation and treatment of ordinary clay raw materials: 1 Requirements for the composition of clay raw materials: According to several analyses conducted by the Soviet scientific community, it is known that the general clay particle composition is as follows: