Blog Posts - Refractory Products



Technical Innovation of Carbon Brick for Blast Furnace Hearths

Possessing with the excellent corrosion resistance and high thermal conductivity which can lead to easily form a protective layer for blast furnace hearth, carbon bricks have been used as refractory material for hearths for more than half century. To...

The Best Refractories for Induction Furnace — 25+ Heats Silica Ramming Mass

In recent years, silica ramming mass is widely used in induction furnace. Compared with traditional refractory lining material, this product is of lower cost, shorter sintering time and better working condition. To offer clients better refractory pro...

How to distinguish the quality of the refractory brick

In general, according to the contents of various chemical compositions and their functions, it is divided into three categories, which are the main components, impurities, and the added ingredients. The main component of the refractory brick is the m...

High temperature compressive strength of refractory

The high temperature compressive strength of refractory materials is the maximum pressure that can be under at high temperature of 1000~2000, which is expressed by N/mm2. The compressive strength of refractory materials is obviously changed with the...

Introduction and usage range of refractory clay

Also called fireclay refractory mud or joint material. Supplementary materials for masonry of refractory products. According to the material can be divided into clay, high alumina, and silica and magnesia refractory mud. Made of refractory powder, bi...

How to avoid the problem of the use of refractory brick in the gasifier

Refractory brick in the running process of the gasifier has also occurred in oxygen load fluctuation and sometimes oxygen control valves will be caused by the variation in oxygen load, sometimes large particles will suddenly stuck valve of high-press...

Air permeability of refractory

Air permeability is the performance of the material under the pressure difference to allow the gas to pass. Because gas is through the material through the hole through, the permeability and the size, quantity, structure and state of the hole, and wi...

Material used for magnesium alumina refractory

Materials — magnesia, high alumina clinker and zircon sand were used Meilv refractory clinker. In the calcined materials, is now the end of their physical and chemical changes, magnesia alumina refractory ball during sintering and Al2O3 in magn...

How to evaluate the density of refractory brick

With the continuous development of China’s cement industry; higher requirements for fire resistant materials are also put forward. Long term dependence on the extensive economic growth mode of the refractory industry, should be increased to adj...

How to choose the different parts of the refractory lining of blast furnace

In the process of production and in the selection of various parts of the refractory lining, should follow the principle is: the refractory lining to correspond to the parts of the heat flow intensity, to keep under the impact of strong heat and lini...

Brief introduction of refractories for blast furnace iron making

Blast furnace is the drum into the air the coke burning and reduction shaft furnace of ore smelting, is in high temperature and reducing atmosphere continuous iron making thermal equipment. In the last 20 years, the development of the global iron mak...

Production process of high alumina brick

It is well known that high alumina brick is one of the most widely used refractory materials, and high alumina bricks and clay bricks are the same as the basic same method. The process of crushing, mixing, molding, drying, sintering, and testing, pac...

What is the high aluminum cement castable

The main mineral of high alumina cement as calcium aluminate (CA), the hydration speed, and precipitation of calcium hydroxide. Therefore, high alumina cement prepared with the characteristics of the fire resistance of the fast hardening and high str...

The reason for surface cracks of refractory bricks after used a period of time

Although the fire brick is good, the structure is relatively stable, but the  refractory  brick used for a period of time, some customers reflect the surface of the refractory brick cracks, which is what causes it? After many years of research and...

Clay bonded castable refractories

Clay bonded castable refractory system combined with clay (i.e. soft clay as binder, its working principle is by clay alkali replacement given construction, high temperature is formed ceramic combination, and generates acicular mullite, interspersed...

How to control the volume stability of refractory materials

Because of the non setting refractory material is used in the field of baking and burning, will appear dry shrinkage and firing shrinkage. It is necessary to consider the measures to compensate the shrinkage in the design of composition, that is, the...

Ten properties of light brick:

1, capacity light: light brick its dry capacity is only 500-700Kg/m*3, is ordinary concrete 1/4, clay 1/3, hollow block 1/2, due to its bulk density than water, commonly known as floating on the surface of aerated concrete, the use of this product in...

Advantages of light refractory brick

Light brick is generally refers to the foam bricks, the normal indoor partitions are used this brick, will not increase the floor load, while the sound insulation effect is good! Strength of products selected high-quality tabular corundum, mullite as...

Physical properties of refractory

What are the physical properties of refractory materials? 1,Physical properties of refractory materials include structural properties, thermal properties, mechanical properties, performance and operating performance. 2, The thermal properties of refr...

Detailed requirements and working conditions of ladle refractories

Ladle is the necessary equipment to carry out the molten steel, continuous casting. Due to the many kinds of steel in the ladle refining process, including argon blowing temperature, alloy composition adjustment, injection refining and vacuum process...


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