Tuesday, September 2, 2014

Cause and prevention method of refractory brick burst

Firebrick occurs burst when experiencing thermal shock, the simple reason there is expansion and contraction, and the reason is prone to burst firebrick type as follows:
1.The refractory brick is composed of mineral quartz, tridymite, cristobalite composition, the temperature change is accompanied by a transformation of the crystalline form of the quartz, resulting mutations volume, thermal shock so that the refractory bricks easily burst.
Magnesia or magnesia-chrome brick, due to the thermal expansion coefficient, thermal firebrick burst prevention
1.The use of insulating firebrick, insulating firebrick with insulation due to the role of firebrick inside low stability, not easy to burst.
2.To avoid thermal shock, slow heating and cooling can be effective in preventing refractory bricks burst.
3.Select the heat transfer coefficient is relatively high, toughness good bricks, can reduce the probability of bursting.

Low Carbon Brick,Carbon Brick,Magnesia Brick,Firebrick,Fire Brick,Refractory Brick

Low Carbon Brick

Low carbon magnesia carbon brick using with crystal magnesite, fused corundum, fused spinel, high purity and ultrafine graphite and nano composite antioxidant as raw materials, which are used for ladle slag line. Low carbon and carbon-free corundum spinel bricks are used for ladle lining and bottom. It can realize ladle low carbon and carbon-free to meet the needs of high grade and ultra-clean steel. The products are characterized by corrosion resistance, penetration resistance, erosion resistance, spalling resistance and good integrity, to meet the need of complete refining ladle. It is the leading level in the domestic.
 

Ladle Slide Gate,Slide Gate Plate,Tundish Slide Gate,Sliding Gate Plate,Ladle Refractory,Tundish Refractory

Ladle Slide Gate

 Made by using sintered alumina and mullite as raw material, add in some of the carbon matrix components and anti-oxidant(such as aluminum, silicon metal, SiC, B4C, Mg-B and so on), adding binder pitch or phenolic resin mixed with coal Nerishige type, fired in a reducing atmosphere to form alumina oxide carbon refractories sliding gate plate.Slide plates fired at high temperatures cover Al2O3-C based, Al2O3-ZrO2-C based and MgO-spinel based, Our company supports the customer in flow control offering a range of ladle slide gate products. We have a wide range of refractory materials for achieving consistent and reliable high performance in all areas of slide gate applications. Balanced refractory life of plates, nozzles and well blocks enables a cost-effective operation

Monday, August 11, 2014

How to choose suitable refractory brick

       Choose our own firebrick is very important, first of all we must understand what is firebrick, you should know the parameters and dimensions of refractory brick.
We commonly divided into three main firebricks; the first one is common, ordinary type is one of our more common bricks, the main difference lies in the shape of firebrick less than other entrant. Another is now using more and more, is heterosexual bricks, shaped refractory bricks are also more popular in recent years, a new type of refractory brick, its weight is generally around 16 kg, which is about firebrick itself with three concave corner, shaped refractory bricks are now a lot of very suitable refractory masonry, is also the best choice for most people, and even more groove-shaped refractory bricks than the average of about three firebrick. Another is the standard firebrick, more suitable for this firebrick refractory masonry in general, no special requirements. If there is no special requirements for masonry can choose a standard firebrick.
We can not be at the time of purchase on the types of refractory bricks to choose their own bricks, you can also choose from the color up on the market of yellow and yellow clay firebrick belong, as well as that square brick general observation that species are varied and some relatively bright colors, such as red, brown, white, red, etc., there is usually relatively shallow aluminum brick color white more.
          We choose the firebrick or from many different perspectives, I hope you read this article on to choose your own firebrick have some help.

Monoblock Stopper,Tundish Refractory,Iron Steel Refractory,Refractory Material,Refractory Product

Monoblock Stopper

According to the quality of the materials, the monoblock stopper of our company can be classified into aluminum carbon, aluminum-zirconium carbon and aluminum-magnesia carbon. This product enjoys performances including favorable slag resistance, strong fracture resistance at normal temperature, fine liquid steel resistance and washing erosion, to ensure reliability in the course of product usage.

Low Carbon Brick,Carbon Brick,Magnesia Carbon Brick,Firebrick,Refractory Brick,Fire Brick,Magnesia Brick

Low Carbon Brick

Low carbon magnesia carbon brick using with crystal magnesite, fused corundum, fused spinel, high purity and ultrafine graphite and nano composite antioxidant as raw materials, which are used for ladle slag line. Low carbon and carbon-free corundum spinel bricks are used for ladle lining and bottom. It can realize ladle low carbon and carbon-free to meet the needs of high grade and ultra-clean steel. The products are characterized by corrosion resistance, penetration resistance, erosion resistance, spalling resistance and good integrity, to meet the need of complete refining ladle. It is the leading level in the domestic.

Mullite Insulating Firebrick,Insulating Firebrick,Refractory Brick,Firebrick,Fire Brick,Refractory FireBrick

Mullite Insulating Firebrick

Light Weight Mullite Insulation Brick can be widely used as lining or insulation layers of various industrial furnaces and kilns in metallurgical industry, machine building industry, ceramic industry, chemical industry.