Blog Posts - Refractory Fiber Board



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...

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...

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...

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...

Recovery and utilization of flue gas and heat in the production of refractory materials

Because of the kiln body structure and the thermal process of different, the intermittent kiln is more than 5 times higher than the flue gas produced by the tunnel kiln. In general, the higher the gas temperature, the greater the proportion of heat l...

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...

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...

Refractory brick patching principle

Fire bricks used a certain degree of damage to the phenomenon, there will be a problem to repair and that in the fire brick problems in repair, and we should follow the principle: 1 refractory brick must be used with the same factory as the same manu...

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...

Damage reason of refractory

According to the specific conditions of various furnaces and thermal equipment, proper selection and application of refractory material is very necessary. It is to improve the service life of the kiln and thermo technical equipment, reduce maintenanc...

Insulation materials used in power plant

Thermal insulation refractory material in the electric power industry especially thermal power plants, such as coal-fired power plants occupies an important position. It has energy saving, reduce heat loss, to meet the requirements of the power plant...

Room temperature compressive strength of refractory materials

Compressive strength refers to the maximum pressure unit of material under normal temperature area can bear, N/mm2 MPa (MPa) said. Room temperature compressive strength of refractory materials is an important technical property of materials. Although...

Refractories for iron and steel furnace

Since the 21 century, the production line of the rapidly expanding, together with changes in coal quality, as well as the influence of environmental protection and a series of conditions, some large and medium-sized pre collapse kiln during the produ...

Analysis of thermal radiation ability of refractory brick

At the same temperature, the ratio of heat energy and blackbody radiation surface of refractory brick of the radiation. Also cal. Also called the blackness, rate of thermal radiation, the radiation rate, radiation coefficient, and relative radiation...

Analysis of thermal radiation ability of refractory brick

At the same temperature, the ratio of heat energy and blackbody radiation surface of refractory brick of the radiation. Also cal. Also called the blackness, rate of thermal radiation, the radiation rate, radiation coefficient, and relative radiation...

Synthetic mullite introduction

Mullite (Mullite) is compound in atmospheric Al2O3-SiO2 two series in the only stable, chemical formula 3Al2O3 – 2SiO2, the theory of composition of Al2O3 71.8%, SiO2 28.2%. Mullite is a mineral name, because of the moire Island Natural Mineral...


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