refractory

Fire clay brick mainly comprises several steps:

1. Take the soil. Fire clay brick takes soil from the paleosol surface two feet deep, and the soil color layer is slightly deeper than the overburden, which formed eighty to ten thousand years ago. At that time, the Earth's warm and humid climate, rich biological role in this period of soil soft and sticky, is a good material to burn a good brick.

2. Excavated clay, after six months of open-air accumulation in the process, so that sunlight, snow and rain freezing erosion, the internal decomposition of loose, hand-broken, leaving only fine after screening pure soil.

3. Adding water to moist, pure water and refining it over and over again, or making the milk into a powder, making it mud, the human being refining through the mud to about five or six times, the process plays a vital role in quality Role of brick.

4. The soil is filled in a block pattern, compacted, and scraped off with excess sludge using wire bow and blank shape. Before sealing, sprinkle a layer of fine sand on the ground floor, soil and ground adhesion in the case.