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显示标签为“silica brick”的博文。显示所有博文

2016年6月26日星期日

What is Spun Ceramic Fiber Blanket

Ceramic Fiber Blanket
Ceramic Fiber Blanket
Spun ceramic fiber blanket has low thermal conductivity, low thermal capacity, excellent thermal stability and thermal shock resistance, excellent tensile strength, excellent thermal insulation, good fire protection and sound absorption. It can be used in industrial furnaces, heating devices,high temperature pipe lining, industrial high-temperature reaction equipment, heating equipment lining, power boilers, gas turbine, furnace door, and high-temperature filter materials.

The heat capacity of spun ceramic fiber blanket is only 1/10 of that of lightweight refractories lining and light castable refractory material lining. The heat capacity of the lining material is is proportional to its weight. Low heat capacity means less heat absorption of the furnace in the reciprocating operation and higher heating rate. It can greatly reduce energy consumption of the temperature operation control, refractory company especially the start and shutedown of the heating furnace.

Spun ceramic fiber blanket is made of spun ceramic fiber cotton by needling, heat setting, vertically and horizontally cutting and rolling. Ceramic fiber blankets with different thickness and density provide a wide range of choice of materials to obtain the best insulation and energy efficiency.
Spun ceramic fiber blanket has uniform diameter, long fiber and low content of slag balls. Its interleaving degree, delamination, properties, erosion ressitance, flexibility and tensile strength are all improved, which improves the application performance of spun blanket and reduces the material loss. Spun blanket does not contain any binding agent to ensure that products have good reliability and stability in various environments.

Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick , refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

http://www.yilongrefractory.com/AllProductServlet?id=1&number=20

2016年5月26日星期四

Reasons of why tundish dry vibration mix takes the place of tundish insulation board

Refractory Fiber Board
FiberFrax Duraboard products are rigid, high temperature ceramic fiber boards manufactured in a wet forming process using Fiberfrax alumina-silica fibers and binders. They offer low thermal conductivity, high temperature stability, uniform density and excellent resistance to thermal shock and chemical attack.
Following the clay and high alumina brick, tundish insulation board, tundish coating, Dry vibration mix is the fourth working lining materials for tundish. Following compare shows why dry vibration mix could replace the insulation board successfully.
    Insulation board, which is mainly used in cold tundish (one without baking before being used), it devotes much for us in energy saving and heat insulation. But, due to its fatal disadvantage, it is being eliminated quickly. 
1. Bonded with many agent, insulation board add silica and hydrogen under high temperature in steel liquid, reduce its purity, produce harmful gas to hurt workers health. VS: Dry vibration mix is bonded without carbon, produce no sharp aroma, and greatly reduce avoid the pollution for steel liquid and environment. 
2. Short using life (for common steel, only 8 Hrs, For Mn-alloy steel, only 4hrs). VS: dry vibration mix usual using life: min 24 hrs, when worked with the fast exchange nozzle, it could reach average using life 45hrs.
3. Easy to be broken during transportation, once one piece is broken, the whole set will can not be work. VS: dry vibration is premixed and packaged in waterproof jumbo, applicable for ship, truck, train, air, etc long way transportation. 4. Low corrosion resistance, easy to make tundish become leakage. VS: dry vibration mix is made by ramming, dense and stable, after sintering, form a protect layer with tundish backing layer, could improve tundish using life and reduce spare tundish number.
    Therefore, should you want to improve your tundish life, please do not hesitate to try Changxing Refractory dry vibration mix, 24 hrs using life is waiting for you.



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Reasons of why tundish dry vibration mix takes the place of tundish insulation board

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The Chinese New Year has passed and Changxing Refractory is back


Application of monolithic refractories on industrial furnaces

Monoblock Stopper
This product enjoys performances of purifying liquid steel, prevent liquid steel oxidation, with good liquid steel washing resistance and erosion resistance.
Unshaped refractory material is a supporting material for building furnace, which can be divided into two categories: ramming material and casting material. They are widely applied on industrial furnace, mainly used in the furnace bottom portion, inconvenient construction part and masonry part of cooling element.
There are varieties of monolithic refractories, but the specific application on the flash furnace can be divided into four broad categories according to the chemical composition, such as magnesium chrome material, magnesium material, high alumina and clay. Structure of Flash Furnace is more complex, which need moremonolithic refractories, the selection of material is based on using position, such as magnesium chromium castables is used on H-beam part, the connecting part can be built with magnesium chromium castable, magnesia castable or high purity alumina castable; in general part of the furnace, the magnesium chrome castables or magnesia castables are available according to the wall structure, in these areas, it requires better mobility. At the bottom of the furnace, magnesium chromium ramming mass is available to be used under the magnesium-chrome brick layer, clay ramming mass is to be used under clay bricks layer.

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2016年4月24日星期日

Magnesia Alumina Carbon Brick, Alumina Magnesia Carbon Brick

Magnesia Alumina Carbon Brick, Alumina Magnesia Carbon Brick

Introduction

Alumina Magnesia Carbon Bricks is made from high quality bauxite, corundum and fused magnesia. It is formulated with very high purity alumina and magnesia.

Advantages

It has low thermal conductivity, good isolation ability, and appropriate residual expansion

Application

Alumina Magnesia Carbon Bricks are used in Ladle Sidewall and Bottom impact areas.
End of magnesia bricks mainly used in steel-making silica mortar, electric furnace and the furnace walls, permanent oxygen converter lining, non-ferrous metal smelting furnaces, high temperature tunnel kilns, calcined magnesia brick and cement kiln liner, bottom of heating furnace and the furnace walls, glass furnace regenerator checkers.

Our company magnesia brick by sinter magnesite as raw material, the reasonable gradation, high pressure forming, high temperature sintering. This product is relatively slag corrosion resistance.


http://www.yilongrefractory.com/ProductServletOne?id1=1&id=4

2016年4月12日星期二

Technological characteristics of mullite brick

Low Creep Mullite Brick
High strength, high temperature stability is good, the creep rate is small.
Plasticity of fireclay bricks and concluded by its split decisions, and plasticity in close relationship with the conclusion. In most situations, strong plasticity, which are also strong.

So produced are usually entered into as malleable to arbitrate its functional strength, plasticity and in accordance with the established ratio of injection molding process and the conclusion of agent, executive producer of all kinds of refractory products. Sintering of the refractory magnesia carbon brick is the calcination of fireclay bricks can be function of the density and intensity, regardless of the conclusion of clay bricks on burning clinker using rigid High-alumina clay bricks and clay tiles, is a key process attributes.

Technological characteristics of mullite brick important apart, plasticity, conclusion and sintering. These properties directly influence its function as a refractory. Fireclay bricks apart is its amount of micro-particle content so soft clay brick is a kind of broken up objects, while other fireclay bricks apart by grinding after crushing degree.
Henan Xinmi Changxing Refractory material Co., Ltd. our product portfolio covers shaped products such as refractory material, firebrick refractory sale, refractory castable, refractory nozzle, ceramic fiber,slide gate, etc;

2016年4月10日星期日

important characteristics of refractory materials

Coil Grout---China Changxing Refractory Material
The coil grout has coil inter-turn that can be used for insulation. ※It can be used as the new coil size layer for the coating or the coil size layer for repair.

We have noticed that several characteristics of refractory: 

1. refractory material usually belong to the heterogeneous, different linear expansion coefficient between the phases is often different, it can cause stress and cause micro-cracks. At the same time, refractory (brick) from the firing temperature cools for stress but also alumina brick a source of micro-cracks. In addition, during formation of stress can cause high stress and micro-cracks on the surface, but do not lead to the final break.
2. refractories usually ingredients firebrick refractory multistage, coarse granule, granule and powder in a broad size range, thus there are many pore, pore tends to become the starting point of fracture.
3. refractory materials at the time of refractory brick for sale manufacture due to forming the remaining pore and cause micro-cracks cannot be cleared during firing and use.
4. refractory materials used in the process thermal stress due to thermal shock and mechanical stress will significantly exceed their mechanical strength.

Henan Xinmi Changxing Refractory material Co., Ltd. our product portfolio covers shaped products such as refractory material, refractory brick, refractory castable, refractory nozzle, ceramic fiber,slide gate, etc;

2016年4月5日星期二

various of performance analysis of Alumina bricks

Low Creep High Alumina Brick------China Changxing Refractory Material
Mainly composed of special level bauxite chamotte as starting material and assisted with special additives, the brick are processed by moulding under high pressure and sintering under high temperature, with features like large heat accumulating capacity and small creep rate. They are avail able for blast hot stove matched of middle and small blast furnace.
Introduction to the making craft of high alumina brick

Alumina bricks can be divided refractory fiber felt according to the different attributes are many ways to apply as a manufacturer for the appropriate distribution of our product quality and

technology and other high alumina bricks, first alumina brick porosity What have porosity?
All percentage of the total volume of pore volume alumina brick station is porosity. Meanwhile alumina bricks have permeability, air permeability per unit time is the amount of

gas by the size of the China refractory material refractory bricks.

Production technology of high alumina brick and clinker clay brick more similar, the difference is that the ingredients in the clinker ratio is higher, can be as high as 90 ~

95%, before breaking the clinker grading sorting and screening in addition to iron, firing temperature is higher, such as Ⅰ, Ⅱhigh alumina refractory brick with tunnel kiln

firing when the general is 1500 ~ 1600 ℃.

Chinese production practice zirconium sizing nozzle has proved that high alumina clinker strictly choose grading, and hierarchical storage before crushing, bauxite clinker and clay together fine

grinding method, to improve the quality of products.


Tips manufacturers, high ladle gunning mix alumina brick thermal expansion and contraction with temperature changes due to expansion and contraction of the reverse. Anti rapid thermal quench

performance is alumina brick thermal shock resistance and chipping resistance. Alumina bricks in long-term use due to impurities affect tissue invasive exfoliation.China

refractory material atmosphere and other factors. Therefore, high alumina brick refractoriness with stability.

Henan Xinmi Changxing Refractory Material Co., Ltd.'s product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory

nozzle, ceramic fiber, slide gate, etc;

2016年3月31日星期四

The market analysis of silica brick industry by Henan Xinmi Changxing

Silica Brick---refractory brick
Mainly used for coke oven, hot blast stove, acid steelmaking furnace and glass melting furnace. The products can be manufactured according to customers' different requirements.
On the other hand, these industries in the fierce market competition to lower prices and China refractory material raised consumption, maintain and improve the life of the requirements,refractory brick for sale resulting in refractory enterprises not only to reduce raw material and production costs, but also to greater investment to accelerate development and application of new technologies and new products. Refractory species is closely around the requirements of the development of the user industry, long life, energy saving, environmental protection and multifunctional.

In recent years, the China refractory material industry is facing a serious oversupply situation, showing lower production, corporate restructuring, increased competition, innovation and research and development efforts to enhance services to enhance user awareness and capacity trends. On the one hand, the main user industries such as refractory technology and management advances in steel, cement, glass, nonferrous metals and other industrial refractories consumption leads to decrease, while the use of refractory performance refractories proposed new stringent requirements.

Like other industries, the refractory industry in recent years, the world has experienced significant structural changes mergers and acquisitions, and mergers and acquisitions swept the globe. Some of the weak competitiveness of small businesses on the verge of bankruptcy, the collapse of competitive enterprises are powerful combination, continue to grow, and some existing monopoly situation.

refractory company Henan Xinmi Changxing Refractory Material Co., Ltd.'s product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc;