Brief introduction of Changxing Refractory slide gate plate and nozzle

ladle nozzle

There are many different kinds of ladle nozzle and slide gate in our company, and which mainly used for ladle and tundish.

Ladle applied nozzle and slide gate
We have 1000 ton press machine for pressing ladle slide gate and nozzle, which can make sure high strength for your products.
There are many different series in our plant, such as LS, LG and so on, which have top level in the world.
Our production is 25,000 pcs for refractory material ladle nozzle per month, and 30,000 pcs for nozzle, which get same performance with Vesuvius and Kurosaki , and with much cheaper price.
Our customers mainly distributed in Turkey, Germany, Russia, Ukrain and South-east Asia.

Tundish applied nozzle:
There are also many refractory brick different kinds tundish nozzle, no matter lower, middle and higher level. We have both 24 hours and 1-2 hours nozzle.

We not only provide products but also after service. So please tell me your requirements and we will do the rest.

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Brief introduction of Changxing Refractory slide gate plate and nozzle
E-mail: sales8@chinaelong.com

Aluminum Carbon Long Nozzle (Ladle Shroud)

Aluminum Carbon Long Nozzle (Ladle Shroud)

Aluminum Carbon Long Nozzle (Ladle Shroud)

Introduction

Based on function categories, Changxing Refractory aluminium carbon long nozzles(also called Ladle Shroud, Long Nozzle) can be classified into preheating refractory nozzle, non-preheating refractory nozzle, argon blowing nozzle and not argon blowing nozzle; and according to material quality, ladle shroud are mainly classified into aluminum carbon, aluminum-zirconia carbon and alumina-magnesia carbon. This kind of refractory nozzle is provided with good liquid steel washing resistance performance and liquid steel erosion performance in the course of use, which can effectively prevent oxidation of air to liquid steel and its spatter.


Advantages and Application

Changxing Refractory ladle shroud enjoys performances of purifying liquid steel, prevent liquid steel oxidation, with good liquid steel washing resistance and erosion resistance.

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What is Spun 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.

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Properties and applications of fused cast AZS

The products are produced by corundum and chromium oxide as main materials, formed from casting, after being treated under high temperature, it has high hot strength and good wear resistance, suitable for making the slide rail part of heating furnace.

Fused cast AZS block is tundish well block the most widely used fused cast refractory brick. According to the ZrO2 content, it can be divided into 33#, 36# and 41#AZS.
Fused cast AZS magnesia carbon brick containing 33% ZrO2 is called 33# fused cast AZS; fused cast AZS containing 36% ZrO2 is called 36# fused cast AZS; fused cast AZS containing 41% ZrO2 is called 41# fused cast AZS.
Fused cast AZS is mainly composed of baddeleyite and corundum and their eutectic crystals. High viscosity glass phase is filled in the gaps of crystals. The crystals is directly precipitated monoblock stopper from the molten liquid and well developed. So, it has large crystal particles and stable crystal phase. Except the voids, it has compact structure and better density than the common sintered bricks. The pores are mainly closed pores and the crystals are intertwined each other, so it ladle slide gate has good mechanical properties and wear resistance. The impurities are difficult to invade the bricks. Therefore, this refractory brick has good corrosion resistance. besides, the transformation of ZrO2 at 900~1150℃ when heating or cooling may cause irregular deformation.
Fused cast AZS block can be used in areas in direct contact with molten metals and molten slags. It is the essential material used in the key areas that suffer from severe corrosion.

refractory company 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.
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Introduction of Changxing Refractory self-flow castable

The Composition and Properties of Magnesia Brick

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

Magnesia refractory brick is a basic refractory product with periclase as its main mineral phase. It contains not less than 91% MgO and not less than 3.0% CaO.
Magnesia brick is composed of 80-90% periclase and 8%-20% other mineral phase including magnesium ferrite (MgO·Fe2O3), forsterite (2MgO · SiO2) and Calcium and magnesium refractory brick for sale olive stone (CaO·MgO·SiO2).Silicate glass contains about 3-5% magnesium, calcium and iron. These silicates may contain tricalcium silicate (3CaO · SiO2), magnesium rhodonite (3CaO · MgO · 2SiO2), calcium and magnesium olivine and forsterite, dicalcium silicate (2CaO · SiO2).
Magnesia brick has good thermal conductivity, good thermal expansion, good corrosion resistance to alkali molten slags and bad corrosion resistance to acid molten slags. Due to the low-melting silicate cements surrounded periclase, the beginning point of the softening temperature under load is not too high, but the collapse temperature is close to the beginning point. Its refractoriness is over 2000℃, but it does not make sense in the actual refractory castable use. Bad thermal shock stability is one of the main reasons for the destruction.
In the storage and transport, special attention should be paid to moisture-proof to avoid burst after affected with damp.

refractory company 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,refractories 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.

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Formation of smelting furnace slag layer

The Matrix Of Refractory Materials

Bottom Frame &Skid Platform Brick for Heating Furnace

The matrix of firebrick refractory refers to the substances present in the gaps of large crystals or aggregates.

Matrix has a decisive impact insulating castable on the properties of refractory products. During the use, the samage of refractories always starts from the matrix. Changing the matrix of refractories is an effective way to improve the properties of products.

Most refractory materials, refractory material according to the main crystal phase and matrix, can be divided into two types: refractories containing crystal phases and glass phase and refractories only containing crystals. The former includes fireclay brick, alumina brick silica brick, etc.. The latter includes magnesia brick, magnesia chrome brick, etc..

These products are fired at high temperature and contain a certain amount of liquid phase. refractory brick The liquid will not form glass phase when cooled but the crystalline matrix which is bonded together with the main crystal phase. The matrix crystal phases are different from the main crystal phase.

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.

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EAF roof damage mechanism and applicated refractory materials

What is Magnesium Silicate Insulation Board

The shell temperature of test ladle that takes Magnesium Silicon Thermal Insulation Board as liner is insulating castable much lower than that of common ladle, which averagely reduces 75℃, while the maximum temperature reduction will be about 120℃. Therefore, the board application will facilitate to eliminate the deformation of ladle refractory brick shell materials, and greatly improve operation environment of ladle. The temperature drop rate of molten steel is smaller than that of common ladle, namely average 0.3~0.5℃/min. It indicates that the heat preservation of molten steel is quite great, which can not only save energy and heat losses, but also is beneficial for the constant temperature and rate during steel casting process to ensure the smooth continuous casting.

Magnesium Silicate Insulation refractory brick for sale Board is mainly used for metallurgy, building materials, furnace heat preservation, fireproof materials, etc. compared to other insulation materials, it is easy to install and cut and has no pollution to the environment, no irritation to skin and no loss during the construction.


Magnesium Silicate Insulation ladle refractory Board is a new lightweight insulation material with low thermal conductivity, good insulation properties and heat resistance.

The Magnesium Silicate Insulation board is made of sepiolite matrix material (mainly magnesium silicate) by pulping, molding, forming and drying. Within the operating temperature range, it can be used for a long term without aging and deterioration. It is non-toxic and odorless.

The Magnesium Silicate Insulation board features with high structural strength, low deformation after sintering, fine heat-conducting property and damp-proof. Especially its physical performance is quite stable under high-temperature operation. The application of this board can promote the volume stability of the whole liner, reduce furnace surface temperature, eliminate operating force among bricks, so as to ensure furnace’s safety performance and effectively save the energy.


Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractories 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.


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



Article source：
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

How to Identify High-Quality Polycrystalline Mullite Fiber

Pretend pretend to user to user the user the information sent back by the close paragraph of time, refractory company according to our sales department, with the high temperature refractories fiber industry boom will continue to improve, the market began to have some production capacity, quality assurance, no after-sales service "three noes" manufacturers or companies, through some of the heat treatment of high temperature refractory ceramic fiber knowledge understanding is not very comprehensive, through some of the heat treatment of high temperature refractory ceramic fiber application of risk, safety awareness is relatively low, through the network propaganda means low price induced heat treatment, the tolerance to low temperature resistant to high temperature, the poor quality of the products high quality, sold to heat treatment of users. High temperature fiber (polycrystalline mullite fiber, alumina fiber production process control requirements are relatively high, which glue: sol gel, and fiber: hot air temperature, pressure, speed, drying, heat treatment, hot processing temperature and time process data must control precision, or after use will appear fiber lined with severe refractory brick for sale contraction, powder, cracks and peeling off, resulting in the fire channelling. It not only damages the industrial furnace equipment, also caused the safety problems in industrial furnace, to heat treatment user brought no small loss.
Refractory fibre is a kind of a white fibrous lightweight refractory material, if not a professional general visual it is difficult not the quality of the material and high temperature levels, part of the "three noes" of the manufacturers or companies violate integrity management

Ceramic Rope

Ceramic Fiber Paper

Introduction

1.Building material industry,kiln,heating equipment and the inwall of high-temperature pipe line2.Chemical industrial high temperature of reaction equipment inwall3.Power plant ,gas turbine engine and heat insulation of unclear power4.The fire proof of high-rise building5.Used to make gasket6.High-temperature filter material

Being one of the reputed organizations in the market, we are engaged in offering an exclusive range of Ceramic Fiber Braided Rope. Popular for their abrasion resistance feature, offered braided ropes are manufactured by our capable vendors using unequaled quality material and cutting edge tools. Provided range is obtainable in various specifications and modified options as per clients’ diversified necessities.

Features:
Perfectly finished
Maximum strength
Surpassed quality

http://www.yilongrefractory.com/ProductServletOne?id1=5&id=67

Refractory Material-Silica Brick

Silica brick belongs to refractory material, with acid erosion ability, its thermal conductivity, high refractoriness under load, generally less than 1620 DEG C, only the ratio of its low refractoriness 70~80 C. The thermal conductivity of silicon increases with the increase of the working temperature, no residual shrinkage, in the baking process, the silica volume increases with temperature. So, brick is the ideal of Clay, High Alumina insulating bricks the coke oven refractory products, an important part of the large and medium (such as coke oven combustion chamber, ramps and regenerator) with brick masonry.

High strength, abrasion resistance, low resistance to carbon deposition of iron oxide, strong ability.

In the drying process, magnesia carbon brick brick maximum expansion occurs in 100~300 DEG C, 300 expansion before the total amount of expansion is about 70%~75%. The reason is that SiO2 appears in the baking process in 117 C, 163 C and 180~270 degrees and 573 degrees four points between the crystal transformation, 180~270 C, caused by the volume expansion of the largest square quartz.

Key to determine the thermal stability of ladle gunning mix silica brick quality is true density, true density size is one of the important signs of the transformation of quartz. The true density of silicon is smaller, the lime into more completely and the residual in the oven in the process of expansion is small.

In the brick, the scales of quartz crystal true density, linear expansion rate, thermal stability such as quartz and quartz, slag resistance, good thermal conductivity, high refractoriness under load, the volume is the most stable in the form of quartz. Good brick firing, tridymite content is the highest, accounting for 50%~80% times; cristobalite, accounted for only 10%~30%; and quartz and glass phase content in the range of 5%~15%.

What is the organizational structure of the high alumina brick

High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.

Generally speaking, the structure of high alumina brick is composed of solid material and gaseous hole. Porosity is an important factor to affect the properties of high alumina brick at room temperature and high temperature, especially at high temperature, the resistance to corrosion of the refractory brick is greatly reduced. The original is trapped:

pore forming high alumina brick molding Clay, High Alumina insulating bricks material in the air is not completely excluded; material removal of water left after space; calcining is not sufficient, some decomposition salts were not decomposed completely, should not completely burning burning ingredients; material composition is not uniform, high temperature sintering shrinkage uneven.

But in some light magnesia carbon brick high alumina refractory brick and fire brick production, it also introduced some specific holes evenly distributed. The existence of the air hole ladle gunning mix has a direct influence on the porosity, water absorption, bulk density and air permeability of high alumina brick.

Using requirements of refractory materials for boiler

Using requirements of refractory materials for boiler

High-temperature micro expansion refractory plastic and super 3000 water clay refractory performance fairly, has shown some advantages in the application to the wall pipe and boiler furnace top. But this kind of material in its solidification time is long, easy to dry shrinkage crack, thus for the construction and maintenance of a great deal of trouble. 

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Modulation principle of slurry used for refractory brick

Modulation principle of slurry used for refractory brick

Brickwork with refractory slurry should follow the following principles:
    (1) to deal with all kinds of refractory slurry pre experiment and pre laying brick front, confirm the bonding time, different mud initial setting time, consistency and water;
    (2) Modulation of different mud to use different instruments, and timely cleaning;
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Technological characteristics of 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;

Different Kind Of Casting Method For Fused Cast Series Block

Made from high-purity, high-density, high-strength materials and MAS matrix-optimized system, shaped by pressing, prefabrication and vibration. With subtle formula design, unique technical process, they have, which identified up to the leading domestic level and received recognition and praise.

Refractoriness of refractory brick refers to the property that refractory’s multiphase reaches to a specific softening degree when at high temperature without any load, which shows the ability of resistance to high temperature. It is a basic scale to measure the ability of resistance to high temperature and basic technical index to show its high temperature property.

1. Normal casting: fused cast series block adopts normal riser casting and the riser is eliminated in hot state. The cut section is divided into two parts, the first part is

solidified which crystallized dense, and this part accounts for 40%-50% thickness of casting; another part is then solidified which has shrinkage and coarse crystallization. The price of fused cast block produced in this way is relatively low, and it is mainly use in upper structure and sidewall of the tank of glass furnace.

2. Tilt casting: Tilt casting is that makes the mold in a special angle before casting and then casts the mold by putting the riser in one side. This can get a dense area in the T section and can be used to get higher accuracy in the T direction, so fused cast block produced in this way can be mainly used in side wall of glass furnace.

3. Void free casting: The shrinkage hole is concentrated in a certain area, and removes the shrinkage with diamond saw after cooling. The remaining useful part is homogeneous and dense, and the average bulk density is close to the theoretical density. Fused cast block manufactured in this method is mainly applied to bottom of tank, channel, electronic refractory brick for sale and other high request parts in glass furnace, and the price is also relatively high.

After melting and refining the mixed material of fused cast series blocks in the electric arc furnace which needs to reach the casting standard, then pouring the molten liquid into the casting mold by the electric furnace, the operation process is called casting.

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

Refractoriness of refractory brick

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.

Fused cast high zirconia block is an important nozzle refractory in glass industrial, it can be used in a wide range of glass furnace, especially high quality and special glass furnace such as TVglass, Borosilicate glass, Alumina silicate glass, Halogen lighting glass, Opal glass and Fiber galss, and it mainly used for glass sidewall, throat, dry vibration mix electrodes brick and the weir block, etc.

Refractoriness is different from melting point, melting point is the balance temperature that materials reach to melting point which is between solid and liquid crystal, however, refractoriness is a process in which the solid phase of the material is gradually dissolved in the liquid phase and finally is melted with the increasing temperature.

The chemical and mineral composition, distribution and combination of each phase have a decisive influence on refractoriness of zirconium sizing nozzle refractory, such as fused cast azs block, fused cast alumina block, fused cast high zirconia block. All kinds of impurities can seriously reduce the refractoriness, so it is pretty important to improve the purity of raw material and strictly control the content of impurity.

However, in actual application, besides the high temperature, refractory is also corrosive by other impurity, working environment is quite complicated, so refractoriness is used as a reference, and can not be more accurate data.

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

various of performance analysis of Alumina bricks

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;

various of performance analysis of Alumina bricks

Produced with unique advanced technology, the clay and high alumina heat insulating bricks possess the characteristics of high intensity for pressure and good thermal shock stability. The use of the bricks can reduce the heat capacity of kiln walls and promote the heat efficiency of kilns. The product is applicable for constructing industrial kilns and inner lining of kilns.

Introduction to the making craft of high alumina brick

Alumina bricks can be divided 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 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 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 refractories 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;

Glass Refractory In China

Casting speed directly determines the casting time, and every fused cast block has its own best casting time. Unreasonable casting time can cause many defects in the casting.

China's glass industry is developing rapidly, and has become the world's first glass production power. The rapid development of the glass industry naturally promotes the development and technological progress of China's glass furnace refractory material. Compared with the traditional process, modern glass production technology has a qualitative leap which towards the direction of higher efficiency, lower energy consumption and better product quality. Accordingly, the technical level of glass furnace which is as the core equipment of glass production is also in constant progress, for instance, widely adopt new technologies to improve the combustion intensity, strengthen heat transfer effect, reduce heat loss and educe the pollution of products and environment.

 In order to achieve the new furnace technology of high efficiency, energy saving and low pollution, it is very important to combine and use several kinds of high quality Changxing clay insulating bricks material in one glass furnace, for example, fused cast brick 33# is mainly used in relatively low temperature and corrosive parts of glass furnace such as working ends, feeder channel; fused cast brick 41# is especially applied to seriously corrosive parts of glass furnace such as throat, bottom budding, refractory brick, electric brick corners, doghouse and also can be used in sidewalls; Zircon brick is mainly used in the superstructure of flame space and tank bottom of glass furnace; fused cast alumina brick (α-β brick) is mainly used as the ideal Changxing Refractory material for feeder channel, spouts and working ends of glass furnaces.
China Xinmi Changxing Refractory material Co., Ltd. our product portfolio covers shaped products such as refractory brick,insulating castable, refractory nozzle, ceramic fiber, slide gate, etc;