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.

Composition and properties of magnesia brick

Magnesia brick is magnesium oxide containing not less than 91% and calcium oxide not more than 3%, alkaline refractory products that percales are the main minerals.

Magnesia brick phase composition of percales 80%­—90%, magnesium ferrite (MgO • Fe2O3), magnesium olivine (2MgO • SiO ₂) and calcium magnesium olivine (CaO • MgO • SiO ₂) a total of about 8% to 20%, magnesium, calcium, iron and other silicate glass about 3% 5%. these silicate may containing three calcium silicate (3CaO • SiO ₂), MERWINITE (3CaO • MgO • 2SiO ₂), calcium and magnesium olivine, forsterite, two calcium silicate (2CaO • SiO ₂) etc..

Magnesia brick characteristics: good heat conductivity; thermal expansion; resist alkali slag resistance, resistance to acid slag properties; load deformation temperature because of percales grains surrounded by silicate cement of low melting point, is the starting point is not high, but the collapse temperature and starting point of difference; refractory degree higher than 2000 ℃. But there is no significance for practical use; poor thermal stability is the main reason for the destruction of the general use. In the storage and transportation; should pay special attention to moisture proof; from back after the break easily.

How to introduce the refractory brick density to others

When customers purchase firebrick from us, and we certainly have to introduce them a range of knowledge about firebrick, and the density of firebrick most need to know, let Yilong technician to tell you how to introduce customers firebrick density.

Firebrick densities are based on different raw materials to the decision, because if the density of refractory bricks are the same, then it shows all aspects of the refractory bricks are the same, so if we choose firebrick, what does that mean? The density of the refractory bricks so we made ​​a classification according to the material used in refractory bricks. The density of the refractory bricks and refractory bricks may also be resistant to some of the impurities in the outside world.

Refractory bricks density of different materials:

Ordinary firebrick: 1.8 ~ 2.0g / cm3

Dense firebrick: 2.05 ~ 2.20g / cm3

Silica brick: 1.80 ~ 1.95g / cm3

Magnesia brick: 2.60 ~ 2.70g / cm3

Alumina magnesia brick: 2.90 ~ 3.00g / cm3

Alumina bricks: 2.25 ~ 2.30g / cm3

Comprehensive above described, for the density of refractory bricks knowledge you have some understanding of it, so you know how to introduce others firebrick, if you want to ask for more knowledge about the firebrick remember to consult us.

How to remove the refractory on the castable furnace

Castable after prolonged contact with thermal furnace wall, they will have chemical reaction, penetrate the lining, causing damage or corrosion of furnace lining, then how to deal with the furnace refractory castable on a lot of people became troublesome problems. Today, our experts will give you a brief introduction on the furnace refractory castable removal methods.

When removing the refractory castable, we must first understand the environment and the surrounding thermal furnace refractory castable life. In the demolition process refractorycastable, we should be careful not to make dust, debris, and other impurities mixed adhesion refractory castable, in order to avoid physical and chemical reaction to produce other good clean impurities. Moreover, we need to dismantle down the different categories of refractory castable, remember not to arbitrarily debris piled together. Construction workers also pay attention to put a dust mask or respirator when removing refractory castable avoids debris into the eyes, nose and mouth.

Here, we simply introduce a bit on the furnace castable refractory removal method, if you want a better understanding on the furnace refractory castable removal methods, you can log on to our website can also call our service sales Hotline.