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泥土经过水的媒介制成瓦坯,在干燥过程中主要的特性是收缩,湿坯体积的收缩量不仅因泥土种类而不同,并且因压制时所加水分的多少而不同.由于收缩的影响,往往使瓦坯发生翘裂,变成废品.为使其收缩量尽可能的减少,从而降低干燥损失,除适当地选择或配合泥土并控制其制造过程中所加的水分外,在自然干燥的生产方法中,更重要的是原料土的处理、制瓦的工具和操作方法、养护的关键和调节方法及管理制度等几个方面.兹将我省制瓦技术的几项具体措施介绍于后: 原料土的处理做好原料土的粉碎、湿化、搅拌工序,使瓦泥达到细密匀熟,是提高瓦坯质量减少损失的先决条件.
The earth is made of water through the medium of water, and the main characteristic in the drying process is shrinkage. The shrinkage of the volume of the wet green body is not only different due to the type of soil, but also varies due to the amount of water added during pressing. Due to the effect of shrinkage, It often causes the billet to crack and become waste. To reduce the shrinkage as much as possible, thereby reducing the loss of drying, in addition to properly select or match the soil and control the moisture added in the manufacturing process, in the natural drying Among the production methods, more important are the treatment of raw materials and soil, the tools and operating methods for making tiles, the key to maintenance, the methods of adjustment, and the management system. Several specific measures for the production of tile technology in our province are introduced here. : The processing of raw materials and soil will be used to crush, wet, and stir the raw materials, so that the clay can be finely and thoroughly cooked. This is a prerequisite for improving the quality of the raw material and reducing the loss.