Refractory Blog Archives - Rongsheng Refractory Castable Manufacturer

Corundum Refractory Castable Manufacturing

June 16, 2021April 29, 2020 by rsrefractorycastable

Corundum castable is a refractory castable mainly made of corundum as aggregate and powder plus binder. Corundum refractory castable sales, mechanical strength is higher than high alumina refractory castable and mullite refractory castable, wear and corrosion resistance.

Corundum refractory castable is mainly used as lining material for various kilns such as boiler, blast furnace hot blast furnace, heating furnace, ceramic kiln and so on. The series of refractory castables are mainly made of electrofused corundum as the main raw material, with a variety of ultrafine powder and high efficiency additives. The main characteristics are high strength, good volume stability, excellent corrosion resistance, not affected by H2, CO and other reducing gas characteristics.

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Corundum refractory castable sales should be used according to the different position and temperature. For example, chromium corundum castable, zirconium corundum castable, brown corundum castable, composite corundum castable, etc. Zirconium corundum castable is mainly used in glass industry kiln and has strong resistance to glass erosion. Brown corundum castable has good wear resistance, and is generally used for coal injection pipe, boiler lining, rolling furnace slide rail, etc. Chrome corundum castable is mainly used for the lining of carbon black reaction furnace and coal water slurry gasifier, and the operating temperature is generally above 1700℃. Composite corundum castable is a kind of composite corundum castable which is made by adding special materials according to the different temperature and environment. It is generally used in cement rotary kiln, non-ferrous metal melting furnace, steel industry etc.

Usage Of Corundum Refractory Castable

1. The water used for mixing refractory castable shall be clean water;

2. The casting formwork shall prevent deformation during construction;

3. The refractory castables shall be stirred by a forced mixer;

4. The casting of refractory castable shall be carried out continuously.

5. After construction, the refractory castable shall be maintained in accordance with the design method. During the curing period, no external force or vibration is allowed.

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RS group is a professional refractory materials manufacturer. Corundum refractory castable sales, stable and reliable quality, reasonable price, worthy of customer trust. We are committed to the production of more quality products, focus on the manufacture of refractory materials for more than 20 years, the customer’s praise, welcome to consult.

Corundum Castable For Sale

June 16, 2021April 28, 2020 by rsrefractorycastable

Corundum castable is the most commonly used antiwear material in CFB boiler. Compared with traditional castable, it can greatly improve the running time of the boiler. Corundum castable manufacturing with high strength, impact resistance, mechanical wear and high temperature high speed airflow erosion.

Corundum refractory castable has the characteristics of high strength, good performance at high temperature, stable volume, small thermal conductivity, strong resistance to slag permeability, erosion resistance, convenient construction, and the furnace structure integrity. We produce refractory castable, reliable and stable quality, wide range of use, worthy of customer trust.

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This series of refractory castables are widely used in gas suspended roaster, oil refining catalytic cracking unit, cyclone separator, fluidized bed boiler and pipeline with high speed airflow erosion of medium in metallurgy, building materials, petrochemical, electric power and other industries.

Corundum Castable Manufacturing For CFB Boiler Features

Erosion wear, flue gas flow rate is large, solid material concentration is high. At medium temperature, smoke entrainment with a large number of solid particles, the wear – resistant lining for a strong, continuous erosion wear. At the same time, in the long-term operation of the boiler, frequent furnace, furnace stop and other factors under the joint action of the wear-resistant lining will produce a strong corrosion. To solve the medium temperature strength and thermal shock stability of wear-resistant refractory is an important way to improve the wear-resistant lining and the boiler operating life.

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Corundum castable manufacturing can be divided into several types, among which, plate-shaped corundum castable is a kind of pure, without any additives such as MgO, B2O3 and so on, which is sintered into a completely shrinkage corundum, with a large crystal size and a well-developed Al2O3 crystal structure. High alumina, corundum and mullite are used as the main materials. High temperature inorganic liquid is used as the bonding agent. Ramming is adopted in construction. This series of refractory has the characteristics of good plasticity, stable thermal shock resistance and abrasion resistance. Mainly used for rotary kiln mouth and other wear-resistant parts and other industrial kiln lining.

Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is a professional refractory manufacturers, we have a complete, scientific quality management system. Our integrity, strength and product quality to obtain the recognition of the industry. Welcome friends from all walks of life to visit, guidance and business negotiations.

Low Cement Castable For Sale

June 16, 2021April 25, 2020 by rsrefractorycastable

The low cement castable price is reasonable, the production process and the burden requirement are relatively strict, many factors can affect its performance. The following small make up to introduce the characteristics of low cement castable, and what factors affect the performance of low cement castable.

This series of refractory castable is a kind of refractory material, which can meet the requirements of high temperature kiln. As a result, it has the characteristics of high density, high strength and so on. Low cement castable price preferential, welcome to consult the purchase.

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Characteristics Of Low Cement Castable

1. The outstanding feature of low cement refractory castable is density and high strength, which brings benefits for use. But brought trouble to bake, bake namely improper, easy occurrence flaking or blast crack phenomenon. As a result, it is very important to make a reasonable oven curve and to use excellent explosion-proof admixture, so as to make refractory castable molding weight of water.

2. Low cement castable is a kind of high technology refractory developed on ordinary refractory castable by using rheological principle, most compact packing theory and ultrafine powder technology. For instance, It has the characteristics of low porosity, small pore size, high density, good volume stability, high strength and small amount of water. And overcome the ordinary castable strength at 800 ~ 1200℃ significantly decreased characteristics.

3. Different from ordinary refractory castable is low cement, ultra-low cement castable is to use and castable main material chemical composition is the same, or similar to the ultrafine powder to replace part or most of calcium aluminate cement, while adding trace dispersant (water reducer) and a certain amount of delayed coagulant. For instance, the cement-free castable is completely made of ultrafine powder or oxide sol.

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We are a high quality manufacturer of refractory castables and refractory cement, specializing in the production of all kinds of refractory castables, products sold all over the world. Low cement castable price reasonable, stable and reliable quality, you are welcome to come and buy.

Steel Ladle Castable Supplier

June 16, 2021April 24, 2020 by rsrefractorycastable

Ladle is a container which plays a very important role in the process of steelmaking. In order to improve the service life of ladle and reduce the consumption of refractory. Steel ladle castable has been developed from amorphous to unshaped refractory by variable and amorphous. Steel ladle castable price concessions, reliable quality, welcome to consult.

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From the aspects of economy, labor saving and environmental protection, pouring construction has become an effective ladle construction method. This method also promoted the development of ladle. Steel ladle castable is mainly used on large, medium and small ladles. Long service life, safe and stable, used for large ladle (100T) integral lining, up to 200-260 times, is an ideal ladle refractory.

This series of refractory castable main additive materials, such as: pure calcium aluminate powder, oxide ultrafine powder, silica sol, alumina sol, phosphate, phosphorus, alumina or multi-purpose pure calcium aluminate cement, polyphosphate and oxide ultrafine powder. I plant steel ladle castable price concessions, high degree of production automation, welcome to consult procurement.

It mainly uses high aluminum, silicon and so on. It has the characteristics of high melting point, low thermal stress, good thermal stability, good slag resistance, high thermal stability, strong alkali resistance and corrosion resistance. Good corrosion resistance to all kinds of polymers. Suitable for high temperature part of industrial furnace, ladle permanent lining, can also be used in other non- ferrous metal smelting system.

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RS group mainly produces a variety of refractory materials, complete varieties, production of steel ladle castable price reasonable, quality stability and reliability, worthy of customer trust.Our fire resistance products are widely used in metallurgy, building materials, electronics, military and other industries. Over the years, we have established a good relationship of mutual trust and cooperation with our customers. We committed to and production of high quality refractory products, constantly developing new products. To meet customer demand, the products have been exported to more than 60 countries and regions. We can still according to the drawings provided by the customer, customized services, welcome to consult and purchase.

Mullite Castable Manufacturing

June 16, 2021April 22, 2020 by rsrefractorycastable

Mullite castable is made of high-quality porous mullite aggregate as raw material, plus fine powder and additives. The critical size of mullite aggregate is 12mm and the long-term service temperature is 1350 ℃. Mullite refractory castable supply, reliable quality, production experience, welcome to consult.

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Mullite refractory castable is mainly made of mullite aggregate and powder with certain binder. It has high mechanical strength and good thermal shock resistance, abrasion resistance and other properties, mainly used as the lining of boilers, blast furnace hot air furnace, heating furnace, ceramic kiln furnace and other kiln furnace.

This series of refractory castables can be used as working lining in direct contact with flame due to its high temperature. It can effectively realize high temperature energy saving, unit unit weight is light, structural weight is reduced by 40 ~ 60%, and the hidden danger of broken brick hanging on the top of the furnace can be eliminated. Mullite refractory castable supply also has the characteristics of low thermal conductivity, good thermal insulation performance, fast drying furnace, short drying period and significant economic benefits.

Mullite castable is widely used in petrochemical industry tubular heating furnace, light diesel oil, ethane cracking furnace lining, atmospheric and vacuum furnace, sulfur recovery device, steam boiler, cuticle net thermal insulation layer, two cylinder and pipe insulation single layer, other industrial furnace door, fire hole, observation hole door lining. Mullite refractory castable supply, stable and reliable quality, all over the world, you are welcome to purchase.

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Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is professional refractory material manufacturer. We have rich production experience, complete product types, worthy of customer trust, you are welcome to come to purchase.

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.