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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...

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...

Analysis of the optimization and upgrading of the refractory industry in the present economic situation

Refractory material is a kind of inorganic nonmetallic materials with no less than 1580, but only the degree of fire resistance can be defined as a comprehensive description of the refractory, and 1580 is not absolute. Is now defined as the physical...

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...

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...

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...

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...

Synthesis of mullite

Synthesis of mullite raw refractory material preparation is divided into dry and wet. The main rotary kiln and tunnel kiln. Dry process is the batch mixture into the ball mill or a mixing machine to mix together, after the ball or compacting pressur...

Light weight castable refractory

Lightweight refractory is made of refractory light aggregate and powder, binder and admixture. General provisions: the volume density of less than 1800kg/m3 and refractoriness is not required, or total porosity is more than 45%, at a specified temper...

Refractory material for petrochemical furnace

Chemical and petroleum industry is an important field of application of refractory materials. Due to the thermal furnace more complex operating condition. Therefore, the need for various types of refractory materials was selected to fit their specifi...

High alumina refractory brick for hot blast furnace

Hot air furnace is insulation and withstand high temperature load, so to determine the various parts of the furnace lining refractory brick material and thickness of, should according to the requirements of masonry bearing temperature, load and heat...

Easy damaged part and common refractory for steelmaking electric arc furnace

The current commonly used arc furnace, furnace wall and bottom furnace, the hot spot is the weak link of electric arc furnace. Reasons for damage of the refractory at the top of the one is splashes, furnace dust erosion; second is due to the high aro...

Properties of clay refractory

(1) Fire resistance. The low degree of fire resistance of clay refractory products is lower, and the increase of three aluminum oxide content in clay brick is improved… Generally 1580 for ~1750; (2) Load softening temperature. Fireclay refracto...

Refractories for heat exchange furnaces

The heat exchanger is an important part of the center of bottom burner furnace, four corners burner soaking pit and one sided upper burner soaking pit for the preheating of the air or gas. The first two stove of heat exchanger is arranged in the stov...

The main factor of refractory high temperature creep

The factors that affect the high temperature creep of refractory are many, and many factors are interrelated… The main factors that affect the creep deformation of refractory are the following: 1, refractory material, including: chemical compos...


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