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Alumina Cement For Sale

June 16, 2021April 21, 2020 by rsrefractorycastable

High alumina cement is also known as aluminate cement. Alumina cement manufacturing, because of its excellent characteristics of fast setting, high strength, high temperature resistance, a day of strength up to 80%, refractory up to 1450 degrees, the strength of refractory concrete up to 55MPa, is one of the excellent high temperature binder materials in industrial kiln engineering.

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Feature and Application Of Alumina Cement

Fast hard early strength, early strength growth fast, suitable for emergency repair engineering and early strength requirements of high engineering. The late strength of high alumina cement may decrease, especially in the humid and hot environment above 30℃, the strength will decline faster, and even cause the destruction of the structure. Therefore, the use of aluminum cement in structural engineering should be cautious.
Alumina cement hydration heat, and will be concentrated in the early release. It is suitable for construction in winter, not for mass concrete project and high temperature and humidity environment.
This series of refractory cement has good resistance to sulfate attack. The main component of alumina cement manufacturing is low calcium aluminate, free calcium oxide is very few, cement stone structure is relatively close. Therefore, it is applicable to the engineering required to resist sulfate erosion.
High alumina cement in contact with alkaline solution, even when the concrete aggregate contains a small amount of alkaline compounds, will cause erosion. So it can’t be used for projects that touch alkaline solutions.
Good heat resistance. Alumina cement manufacturing at high temperature will produce a solid reaction, sintering bonding instead of hydration bonding, so that high aluminum cement at high temperature can still maintain high strength.

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High alumina cement has a high degree of hydro-hardening activity, usually the hardening time is not more than 1 day, high alumina cement is the main source of the early strength of refractory prefabricated parts. This series of refractory cement has the effect of making the cement harden as early as possible, and in the advanced alumina cement also plays a hardening role, also plays a crucial role in the later strength. The heating temperature and the time to reach the highest temperature of the single cast of different kinds of high alumina cement are determined by the heating characteristics and content of the calcium aluminate contained.

Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is professional refractory material manufacturer. We are committed to the production of high quality refractory products, products sold all over the world, production experience, worthy of customer trust, you are welcome to come to purchase.

Clay Refractory Castable Manufacturing

June 16, 2021April 20, 2020 by rsrefractorycastable

Clay refractory castable is made of soft clay as a binder, and alumina silicate or corundum mullite refractory aggregate, powder and additives made of high quality refractory castable. As a result, the clay refractory castable supply has the characteristics of medium temperature strength, thermal strength, high temperature volume stability and high spalling resistance.

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This series of refractory castable are commonly used in rolling steel heating furnace, soaking furnace, soaking furnace, iron mixing truck, etc. In the clay refractory castable supply, the mineral composition should contain a small amount of montmorillonite and mica and other substances. As a result, so that it has better binding properties and plasticity.

Clay Refractory Castable Introduction

According to its characteristics and construction requirements, the admixture mainly uses dispersant and hardening agent, so as to enhance the liquidity of the clay castable, conducive to the mixing molding. Such as, when the clay refractory castable is mixed and stirred, two kinds of additives should be added at the same time. And it is required to ensure that there is good liquidity when forming. As a result, In the limited time after forming, can make the refractory castable to obtain sufficient strength.

Clay refractory castable supply, the series of refractory castables are divided into: clay, high alumina, corundum mullite and high alumina lightweight according to the refractory aggregate varieties. As a result, according to its performance and characteristics are divided into ordinary and high strength clay refractory castable.

Because of its high wear resistance and fire resistance. The range of application of clay castable is relatively wide. As a result, generally used in suitable heating furnace, soaking furnace, heat treatment furnace, rotary kiln and circulating fluidized bed boiler. All kinds of high temperature burner lining, heating furnace pipe wrapping lining and so on. And the use effect is particularly remarkable.

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We are a high quality refractory castable manufacturers, with automatic production equipment, high degree of automation, rich production experience, with more than 20 years of production experience, is worthy of customer trust refractory manufacturers.

High Alumina Cement Manufacturing

June 16, 2021April 18, 2020 by rsrefractorycastable

High alumina cement is also called aluminate cement, can also be called bauxite cement, the raw material is mainly bauxite and lime. High alumina refractory cement is prepared by calcining and grinding in accordance with a certain proportion to obtain hydraulic cementitious material, which is mainly used in refractory castable as a binder.

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High alumina cement hydration heat, can not be used in large areas of concrete projects and humid, high temperature projects. It is mainly suitable for use in the environment of 5~35℃, in the refractory castable with a certain proportion of high temperature refractory cement, can make the refractory castable in the construction of rapid condensation, dense.

High alumina refractory cement has strong sulfate resistance. This series of refractory cement has a dense cementstone structure, the main component is low calcium aluminate, calcium oxide content is very little. It is suitable for engineering with high demand of resisting sulphate erosion.

This series of refractories has good heat resistance, and will always maintain the solid state under high temperature environment, and the strength of the cement will not change. However, the use of high alumina refractory cement is more demanding, because its early strength growth is fast, more suitable for use in the emergency rescue project, or the early strength of the project.

It is worth noting that, its alkali resistance is slightly weak, and alkaline solution contact will cause erosion, and the concrete aggregate contains a small amount of alkaline compounds will also cause erosion, so contact with the alkaline solution of the project, can not use high aluminum cement.

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Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is professional refractory material manufacturer, our production experience is rich, the product quality is superior, welcome everybody to come to consult purchase.

Corundum Mullite Refractory Castable Price

June 16, 2021April 17, 2020 by rsrefractorycastable

Corundum mullite refractory castable has high compressive strength, good volume stability at high temperature and thermal shock resistance, excellent wear resistance and erosion resistance. Corundum mullite castable can also be used for anti-wear lining of large power station boilers and lining of other high-temperature kilns.

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This series of refractory castables can be used for the front and rear mouth of large cement kilns, coal injection pipes and other industrial lining of kilns. The price of corundum mullite castable varies in the market, so it is difficult to say a uniform price. Through comparison, we can find that many manufacturers produce refractory materials, the same material, different quality, so the price will be different. If you have refractory castable purchase requirements, welcome to contact us, we will give you the most reasonable price and the most reliable products.

Corundum mullite castable has the common advantage of corundum castable and mullite castable. It is mainly characterized by high strength at high temperature, good thermal shock resistance, good structural spalling resistance, good thermal shock resistance, high softening temperature under load, low creep rate at high temperature and good chemical corrosion resistance.

Corundum mullite material has a very high refractory temperature, the refractoriness can reach more than 1800℃, also has a very high hardness so that the products have a very high compressive strength. At the same time, it has excellent thermal shock resistance stability, and low temperature line change, often in the refractory industry as unshaped refractories and shaped refractories as raw materials, made of products, belong to the middle and high grade refractories.

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The above is what we bring to you today about Corundum mullite castables some knowledge points, if you and refractory procurement requirements, welcome to contact us, we will provide you with the most reliable products and the most suitable scheme. RS group is a professional refractory materials manufacturer, and has been committed to the production of refractory materials for many years, with many customers to achieve friendly relations of cooperation.

High Alumina Cement Suppliers

June 16, 2021April 16, 2020 by rsrefractorycastable

High alumina cement feature prominent, wide application, wide range of application industry coverage, is one of the high quality refractory. We are a professional refractory manufacturers, high degree of production automation, safe and efficient, stable and reliable quality, is worthy of the trust of quality manufacturers.

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Applicable Industries

High alumina cement feature covering metallurgy, chemical industry, building materials, electric power, military industry, nonferrous metals, carbon industry and other high-temperature, super high temperature kiln and equipment refractory materials use requirements, products throughout the domestic market, and exported to Korea, India, Brazil, Jordan and other international markets, wide user praise.

High Alumina Cement Feature

1. Early strength characteristics: its early strength improvement rate is much higher than that of fast hardening Portland cement, which is suitable for emergency repair projects, but the late strength will be reduced, so it is limited to use in structural engineering.

2. Hydration heat large, and concentrated in the early release: suitable for winter construction, can not be used in mass concrete works and high temperature humid environment of the project. Because of several kinds of exothermic, suitable for low temperature curing concrete works.

3. Strong resistance to sulfate: in the hydration process, free calcium hydroxide is not separated out, but aluminum hydroxide gel is formed, and a protective film is formed on the particle surface. The resistance to erosion was reduced during the later crystal transformation. Therefore, it is suitable for engineering with the requirement of resisting sulfate erosion.

4. High temperature resistance: high alumina cement can be used as the cementing material of the heat resistant concrete, configured into the heat resistant concrete.

5. Good heat resistance: because of the high temperature of the production of solid reaction, sintering bonding instead of hydration, so that high aluminum cement at high temperature can still maintain a high strength.

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This series of refractory cement widely used in metallurgy, chemical, petroleum, electricity, machinery, building materials and other industrial kiln and high temperature equipment.

Refractory Material For Steam Boiler

June 16, 2021April 14, 2020 by rsrefractorycastable

In all kinds of industrial applications, there are many forms of steam boiler, power generating boiler and ordinary boiler are two of them. The operating temperature of the power generation boiler is generally below 1000℃, and the temperature of the combustion chamber is generally about 1550℃. So what kind of refractories do they use in some places? We are a professional refractory products manufacturers, production and manufacturing of refractory material price concessions, reliable quality, you are welcome to come to consult and purchase.

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The furnace lining of power generation boiler is mainly made of unshaped refractory. And in the injector or burner and other parts of the use of high alumina cement, clay refractory castable, or with high alumina refractory plastic. Refractory material price concessions, stable and reliable quality, high degree of production automation, is worthy of customer trust a high quality refractory manufacturers.

The working temperature of the ordinary boiler combustion chamber is generally 1400 — 1600℃, its lining is generally a clay brick, the rest of the furnace lining and flue work layer is used three clay bricks. The lining of ordinary boiler combustion chamber can be made of fireproof plastic ramped or refractory castable with fireproof refractoriness of 1710-1790 ℃, and the flue working layer is made of fireproof castable of high alumina cement clay.

At present, the refractory castable is a kind of refractory mixture commonly used in the construction industry. Refractory material price concessions, the overall high-temperature strength, wear resistance, wide range of applications, worthy of customer trust.

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RS group is a set of scientific research, design, production, construction, service as one of the refractory manufacturers, domestic refractory raw materials, fuel resources rich quality, for the production and operation of refractory materials to provide unique superior conditions.

How To Make Refractory Castable

June 16, 2021April 13, 2020 by rsrefractorycastable

We are a professional refractory castable factory, refractory castable in production, production equipment advanced, high degree of automation. In the production of shapeless refractory castable, it can be divided into two categories: shapeless castable and unshaped refractory castable. Because breed is different, its production method also has certain distinction.

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Refractory castable factory production technology advanced, high degree of automation equipment, in the raw materials, some raw materials do not need to break and crush, can be used directly. For example, alumina hollow ball, ceramsite, expanded perlite and industrial alumina. In addition, the preparation of refractory aggregate, powder, soft clay and other raw materials, and fired into firebrick is basically the same, the difference is refractory aggregate critical particle size, classification, so the need for screening, lifting and other equipment, storage bin is also more.

The refractory castable factory shall conduct chemical analysis and physical property test of refractory raw materials, cement binder and additive materials before the production of ingredients. In addition, the refractory aggregate after breaking and pulverized and the refractory powder after fine grinding, chemical analysis, screening and fineness inspection should be carried out to ensure the quality of finished products.

Finished refractory products, made of cement or liquid binder, may be packed or shipped directly, but their shelf life and dosage must be indicated. The mass of each bag is generally 20~50kg, according to the heavy material and light material, the quality of each bag will be different.

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RS group is a high quality refractory manufacturer, we produce various types of refractory material, the product variety is complete, the quality is stable and reliable, exports to many countries and regions in the world, and many customers have reached a friendly relationship of cooperation. Welcome to have the refractory material demand of the user, come to contact us, we will provide you with the most suitable for your product solution.

Unshaped Refractory For Sale

June 16, 2021April 11, 2020 by rsrefractorycastable

The unshaped refractory manufacturing has the characteristics of short production process, energy saving system, excellent product function and long service life. In addition, its application field is also extended from low and medium temperature atmosphere furnace to high temperature melting furnace, so that the application scale of unshaped refractory material is different from the past, with better economic benefits.

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According to the composition of unshaped refractory manufacturing, we can divide it into two categories: heavy and light. The physical density of lightweight unshaped materials is less than 1800Kg/m3,the physical density of heavy unshaped refractory is greater than or equal to 1800Kg/m3.

According to its way of production, it can be divided into three categories: shaped products, special materials and bulk materials. Still can be classified according to binder variety, refractory aggregate varieties and construction method to make, this kind of classification is very practical, the use of the most is classified according to the construction method, such as castable, alter material, plastic refractory, injection mix and precast block etc.

The production of this series of refractory products are made of formalized products and bulk materials. The method of production varies according to the variety. Unshaped refractory manufacturing is a new type of refractory, it does not need to be pre-fired, relaxed mixture delivery and molding can be used after baking. This kind of material can make the lining body that does not have juncture and structure, advantage is numerous, quality is superior, welcome everybody to come to consult purchase.

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We are a professional refractory manufacturers, specializing in the production of high temperature refractory castable, refractory brick, light brick, high aluminum brick, high aluminum wear resistant castable and other shaped, unshaped refractory. If you need buy refractory material, please contact us, we will be at your service.

Calcium Aluminate Cement For Sale

June 16, 2021April 10, 2020 by rsrefractorycastable

Calcium aluminate cement manufacturing has the characteristics of high early strength, moderate setting time, high fire resistance, strong slag resistance, etc. It is widely used in metallurgy, building materials, petroleum, chemical and other industrial kilns.

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Calcium aluminate cement is mainly with natural bauxite or industrial alumina and calcium carbonate (limestone) according to a certain proportion, by calcining or electric melting and made, also useful bauxite and limestone with melting and made. According to its chemical composition can be divided into ordinary calcium aluminate cement (Al2O3 53-72%, CaO 21 ~ 35%) and pure calcium aluminate cement (Al2O3 72 ~ 82%, CaO 19 ~ 23%) two kinds. The chemical composition and mineral composition of different types of calcium aluminate cement manufacturing may vary to some extent.

What we should know is, calcium aluminate cement manufacturing, medium and low grade refractory castables, such as clay, high aluminum castables using ordinary calcium aluminate cement as binder. High-grade refractory castables, such as steel jade, mullite, containing chromium steel jade, corundum – spinel castables using pure calcium aluminate cement as binder. The dosage of ordinary refractory castable calcium aluminate cement is 10%~20%, the dosage of low-refractory castable cement is 5%~7%, and the dosage of ultra-low cement castable is less than 3%.

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I plant with an can production of more than ten thousand tons of refractory production line, production automation, production and sales of refractory materials are through the national test, refractory components uniform, high purity, quality stability, welcome to consult and purchase.

Insulating Castable Export Qatar

June 16, 2021April 9, 2020 by rsrefractorycastable

The characteristics of insulating castable are small volume density and low thermal conductivity, so it has good heat insulation performance. Insulating castable manufacturing generally divided into clay castable, high aluminium lightweight castable, mullite light castables, hollow ball castable, temperature requirements is not the same performance, different sand composition material usually have a light brick, porous what, ceramsite, hollow ball, expanded perlite materials, such as the density of lightweight castable generally between 0.8-1.0-1.2 uses the most widespread.

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The configuration and use of this series of castable is basically the same as that of heavy refractory castable, the difference is that its aggregate bulk density is small, easy to absorb water. Therefore, the use of dry materials should be mixed well, add half of the proportion of water to mix first, wet mix evenly, in the other half of the water and cement binder poured as even mixing after use. The temperature is not the same as the use of cement binder is not the same, after pouring mold curing 3-5 days, after oven normal use, generally used in the insulation layer.

Insulating castable manufacturing is a kind of unshaped refractory castable. Lightweight heat resistant castable in the preparation, the main choice of fire-resistant lightweight aggregate and powder, in the selection of the corresponding binder and admixture from the preparation. The only difference between the properties of lightweight castable and heavy castable is that the test of softening temperature under load is 0.1 mpa.

It will generally choose to do the industrial kiln construction of the heat insulation layer, its reason is that the insulating castable manufacturing low refractory, general use temperature of 600~900℃, more suitable for the boiler construction below 1000℃.

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Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is specializing in the production of all kinds of refractory products refractory manufacturers, I plant production of refractory types complete, stable and reliable quality, welcome to consult the procurement.