Reasons for firebrick heat burst phenomenon

The reason for firebrick heat burst phenomenon. Do you know the reasons for the phenomenon of heat burst firebrick emerge? Below I explain for your detailed introduction about it:

1, magnesia or magnesia-chrome brick, due to the large thermal expansion coefficient, while also prone to sudden changes in temperature firebrick heat burst.

2, the mineral phase constituted of silica brick, such as quartz, tridymite, cristobalite, due to the temperature change is accompanied by crystal transformation of quartz, along with the volume of mutation, so the heating or cooling brick masonry structure, special Note heat burst problem.

3, insulating firebrick, because of its low thermal conductivity, a large temperature gradient of the brick body, and because of its relatively low intensity, so it is easy to generate heat burst problem.

The above is a brief burst phenomenon firebrick heat reason, I hope for your help, more product information, please feel free to contact us or login inhttp://www.yilongrefractory.com.

Quality of the refractory material in related in the using raw

The quality of refractories and related Raw that you use. In the refractory, with a variety of species, such as high alumina bricks, clay brick, corundum brick, castable, refractoryproducts manufactured different, you need to use Raw have different chemical and mineral composition.

Refractory materials are all fundamental refractories, refractory raw materials directly affects the quality of refractories, has a decisive significance for products bearing capacity, quality, only quality raw materials plus a reasonable manufacturing process to produce high-quality refractory products.

Requirements for refractory Raw, first of all have suitable chemical into a thick mineral impurities combined amount should be less, and more uniform distribution of impurities as possible; Furthermore, it should enrich nuclear resources, facilitate the exploitation, low into the wood, because the production of refractory products cost is largely determined by the price of raw materials.

Luoyang Yilong Refractories Co., Ltd., for many years experience in production of refractory materials, has a leading international leading consciousness in refractory materials selection, Yilong refractories, welcome your come.

High aluminum bricks’ making temperature and heat preservation time

Friends who select alumina bricks clearly know how much temperature you need to control when producing alumina bricks? How long the insulation ​​in the future you know? Today let Luoyang Yilong Refractory technician to tell you knowledge of alumina bricks that making temperature and holding time.

1. Alumina bricks are divided into one, two, three grade, and ​​the normal temperature is about 1440 degrees Celsius, holding time can reach 40 hours
2. Making time for high aluminum brick three, temperature should be controlled at 1400 degrees Celsius; the holding time in this case can reach a maximum of 32 hours.
3. And when the tunnel kiln firing high alumina brick, the temperature must be at 1550 degrees, so that the holding time can be in 24 hours or 48 hours.

And according to the temperature and different raw material with high aluminum bricks, baking temperature 600 degrees Celsius is the lowest temperature as the boundary, then in the firing process a little with increasing temperature, and fired refractory brick the required temperature so far.

The content of the temperature and heat preservation time, high alumina brick is how much knowledge you have some understanding of it, if you want more information about high aluminum brick knowledge can consult us.