With the continuous development of modern urbanization, we also have great requirements for building materials. The presentation of paving slabs not only brings beauty to our city, but also makes our city look more neat. How to insist on his neatness in daily use.
1. Formulate suitable firing guidelines
In addition to the porosity, the absorbing ability of paving slabs is also closely related to the structure of the pores. During the firing process, as the temperature increases, the number of small holes decreases, while the volume of large holes increases. If the firing temperature further increases, the green body will swell, and the brick body will be able to contain dirt. For large holes, the appearance quality will obviously deteriorate.
2.Control the fineness of the billet
In the ball milling process, the fineness of the paving slab blank must be strictly controlled. Generally, the mesh size of a 250 mesh sieve is less than 1%. Most of the quartz particles have a particle size of less than 40 microns. In the firing process, the quartz particles and The stress caused by different glass phase expansion coefficients is the smallest, and the cracks in the brick are the least. Normally, we need to have a reasonable degree of cooling when firing, so that we can adhere to the fineness of the billet 3, the formula and crystal form of the billet change
The sintering degree of the brick is good, and the water absorption rate is low, which makes the paving slabs have the basic conditions of outstanding anti-fouling ability. The size of anti-fouling ability also has a certain relationship with the formula composition and calcination status. For example, from the perspective of anti-fouling, if the calcination time is longer, the crystal form changes more thoroughly, and the anti-fouling can be stronger. The more high-temperature glass phase, the less the crystal phase of kaolin residue, the anti-fouling performance of the product will The better.
The above is how Xiao Bian introduced to you how to adhere to the neatness of the paving slabs. Is everyone clear? In fact, in the current application, as long as we can pay more attention in normal times, we can adhere to the neatness of the turn.