Refractory Blog Archives - Rongsheng Refractory Castable Manufacturer

Corundum Castables in California

June 16, 2021May 20, 2020 by rsrefractorycastable

Corundum castable is actually more commonly known as the aluminum content of more than 85% of the castable. Corundum refractory castables in the refractory castable, is a high-grade castable, because corundum castable high temperature resistance strength, and wear resistance to erosion, gas sealing performance is good, there is a rapid coagulation early strength characteristics.

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At present, it is mainly used in areas with high temperature and severe erosion. However, although corundum castable has high strength, its flexibility is not very good, just like corundum castable used at the mouth of the cement rotary kiln. Many corundum castable manufacturers add mullite to meet the special requirements of the mouth of the kiln.

Corundum refractory castables also has different grades and different additive materials, users can choose different corundum castable according to the location and temperature of use, there are chromium corundum castable, zirconium corundum castable, composite corundum castable.

To be specific, corundum castable is made of high quality refractory aggregate, with appropriate coagulant, dispersant and stainless steel fiber. Main characteristics of corundum refractory castables: high strength, good high temperature performance, volume stability, small thermal conductivity, slag penetration resistance, erosion resistance, construction convenience, furnace structure integrity, etc.

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Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is professional refractory supplier. We are committed to the production of a variety of high quality refractory castable cement, customers throughout the world, the quality of the product has been customer praise, you are welcome to come to consult and purchase.

Rongsheng Refractory For Sale

June 16, 2021May 19, 2020 by rsrefractorycastable

Refractory for sale is chemical and physical properties of the use of non-metallic (does not exclude a certain proportion of metal) materials and products. According to the American standard, it can be used to make non-metallic materials of structures and devices exposed to temperatures above 1000 ℉ (538 ℃) according to its chemical and physical properties. According to the Japanese standard, the shaped refractories can be used at temperatures above 1500 ° c, and the amorphous refractories, refractory mud and refractory heat insulation bricks can be used at temperatures above 800 ° c.

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According to chemical properties, refractory material can be divided into acid refractories (mainly composed of silicon dioxide), alkaline refractories (mainly composed of magnesium oxide, calcium oxide or both), and neutral refractories (such as corundum and silicon carbide products).

According to the supply form, refractory for sale can be divided into shaped refractories (dense shaped products and thermal insulation shaped products, the former with a total porosity of less than 45% and the latter with a total porosity of more than 45%) and amorphous refractories (a mixture of aggregate fine powder, binders and additives).

Classification by combining form, can be divided into ceramic combination (under a certain temperature, is produced by sintering or liquid form and the combination of generally applicable to the sintering products), chemical combination (under room temperature or higher temperature hardening formed by chemical reactions, usually doesn’t burn are suitable for all kinds of products), hydration combined with (at room temperature, through the fine powder react with water to produce solidification and hardening and the combination of formation, usually applies to castable), organic combination (at room temperature or slightly higher temperature on organic matter form combining produce sclerosis), resin combined (containing refractory material of the resin at low temperature heating, Bond due to resin curing and carbonization) and bitumen/tar combined , etc.

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The classification method of refractory for sale is very many, do not have completely unified standard, usually according to its chemical composition or composition manufacture way and supply way and so on actual situation will decide. Rongsheng refractory maerial, welcome to contact us.

Refractory Cement Export Ireland

June 16, 2021May 18, 2020 by rsrefractorycastable

Refractory cement is also called aluminate cement or high aluminum cement. Aluminate cement is a hydraulic cementing material made by calcination of bauxite and limestone with calcium aluminate as the main component and alumina content of about 50%. Aluminate cement is often yellow or brown, there are also gray. The main minerals for the refractory cement export are monocalcium aluminate (CaO·Al2O3, CA for short) and other aluminates, as well as a small amount of dicalcium silicate (2CaO·SiO2).

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This series refractory cement used for cementing all kinds of refractory aggregate (such as corundum, calcined high bauxite, etc.), to make refractory mortar or concrete, used for lining industrial kiln. Refractory cement forms a low eutectic substance under the action of high temperature. When the refractory castable is configured, too much addition will reduce the high temperature performance of the castable. Silica powder can be used to replace the refractory cement in general production.

Refractory cement refers to cement with a fire resistance not lower than 1580°C. The refractory cement export Ireland is mainly made of bauxite and limestone. The clinker with calcium aluminate as the main component and alumina content of about 50% is calcined and then grinded into hydraulic cementing material. According to the different composition, can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement and dolomite refractory cement. Refractory cement can be used to cement all kinds of refractory aggregates (such as corundum, calcined high bauxite, etc.), to make refractory mortar or concrete, used in cement rotary kilns and other industrial kilns as lining.

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In order to ensure that there is enough time to complete the mixing, transportation, molding and other processes in the construction of refractory cement export Ireland, the initial setting time of cement should not be too short; After the completion of construction, hope the refractory cement can harden as soon as possible, producing strength, so the final setting time should not be too long.

Corundum Wear Castable Price

June 16, 2021May 16, 2020 by rsrefractorycastable

Corundum wear resistant castable consists of high strength aggregate, powder mineral additives. Corundum wear castable for sale with high strength, shape control, strong overall performance and other advantages. Corundum wear castable is cheap in price, the current quotation is generally below 4000, for the construction site has wear-resisting requirements is the first choice of refractory.

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As to why the price is high or low, I think we all know that if you use more materials in the production, that is, the laying area is larger, the manufacturer will give you a relative discount, just like buying things, the more you buy, the more favorable the price will be.

Corundum wear castable for sale has high refractory temperature, wear resistance and structural strength, is a kind of castable commonly used in high temperature industrial kiln contact solution or wear resistant layer. This series of refractory castable is an amorphous refractory material consisting mainly of ultra-high alumina clinker as aggregate and powder, as well as pure aluminate cement binder and various mixed components.

Another factor affecting the corundum wear castable for sale is the construction process. This series of refractory castables can generally be used in different parts. So for each part of the construction requirements are not the same degree of difficulty. The more complex the construction, the longer the time, the relative charge will increase accordingly.

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RS group produces clay, high alumina, silica, magnesia, lightweight refractories and various shaped and unshaped refractories. We are committed to the production of high quality refractory materials, high production efficiency, stable and reliable quality, careful and thoughtful service, you are welcome to come to consult and purchase.

Acid Proof Castable For Sale

June 16, 2021May 13, 2020 by rsrefractorycastable

Acid proof castable is a new type of anticorrosive material, which is mainly composed of potassium silicate as the adhesive, inorganic molecular material as the curing agent and silicate as the acid-resistant filler. Acid proof castables has high mechanical strength and superior bonding performance, especially in the masonry of granite quick material, acid-resistant ceramic tile, porcelain plate and cement bonding greater than the parent.

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Acid Proof Castables Advantage

1. The acid proof castable has stable performance in various concentrations of organic and inorganic acids, especially in dilute acid, industrial water and neutral aqueous solution, which does not produce crystal salt and has high anti-permeability;

2. Good heat resistance, lining in titanium dioxide rotary kiln, using temperature up to 950℃ — 1000℃;

3. Acid proof castable material adopts non-toxic curing agent, which is non-toxic to operation and construction personnel. It can be used in anti-corrosion engineering of food and medical equipment after identification by medical and health departments.

4. Compared with organic acid-resistant materials, acid-resistant castables are cheap. It except having the same performance of organic acid corrosion resistance, but also has the unique properties of strong oxidizing medium corrosion resistance;

5. Curing at room temperature, simple construction, convenient use, easy transportation, moisture-proof storage.

This series of refractory castable is made of sodium silicate as binder, and acid or alkali acid refractories as aggregate and powder, plus a small amount of coagulant. However, such castable is not resistant to corrosion by alkali, hot phosphoric acid, hydrofluoric acid and high fat. It is widely used in the thermal equipment of petroleum, metallurgy, chemical industry, light industry and other sectors.

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Acid proof castables is mainly used as the lining of anti-corrosion flue and chimney, storage tank, pickling tank, pypyrite tower, acid recovery furnace and other containers corroded by acidic high-temperature gas. If you have any questions about other refractory castables, please feel free to contact us and we will be happy to answer your questions.

Export Packing Of Refractory Castable

June 16, 2021May 11, 2020 by rsrefractorycastable

A lot of people ask recently, what is the requirement of export packing of refractory castable? What kind of packing will be used? Today, we are going to introduce the packaging requirements of refractory exported to indiana. I hope it will be of help to you.

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When the refractory castable is exported, packaging is very important. The quality of packaging directly affects whether the refractory castable can better protect the refractory castable when it is loaded upside down. The export packaging of refractory castable is less strict than that of firebrick. General refractory exported to indiana are packed in ton bags. The material of the ton bag is generally made of woven plastic, which is convenient for the better loading of the refractory castable in the process of transportation and packaging.

When the refractory castables is delivered, it is usually packed in bulk. Generally, each small bag is 25kg and 50kg. This is convenient for calculation and packaging. The small bags are usually packed in woven bags with plastic film to protect the refractory castables from moisture. The package can be completed by placing 20 or 40 small bagged bags of refractory castables into a large ton bag.

The package of refractory castable is usually packed in ton bags. If the customer needs to use pallet packaging, the small bag of refractory castable shall be placed on the pallet. After the package is finished, the package shall be wrapped with moisture-proof plastic wrap film. When pallets are used to transport refractory castables, the pallets need to meet export requirements. When refractory exported to indiana, the first is that the packaging of refractory castables should be in accordance with the requirements for easy transportation, so as to avoid the breakage of ton bags or pallet damage in the process of transportation. Second, refractory castable to conform to waterproof and moistureproof.

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When the refractory castable is exported, it shall also be labeled on the outside of the package and labeled with the packing list, also known as the packing mark. Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. committed to the production of a variety of high quality refractory products, quality stability and reliability, reasonable price concessions, you are welcome to come to consult procurement.

Corundum Castable and Corundum Mullite Castable Difference

June 16, 2021May 8, 2020 by rsrefractorycastable

Corundum castable has a higher aluminum content and a higher price than ordinary castable, but good refractory products have a longer service life than other refractory castables. Corundum castable manufacturing quality is stable and reliable, worthy of customer trust, welcome to purchase.

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The common corundum castable mainly includes two kinds of corundum refractory castable and corundum mullite refractory castable. Both types of refractory castables contain corundum, but they differ greatly in terms of performance. Below we introduce the concrete difference of these two kinds of refractory castable for everybody.

The corundum contained in the preparation of rigid jade refractory castable is a kind of trigonal crystal system, the crystal type is generally short columnar, and the corundum itself also has high thermal conductivity and electrical insulation properties, excellent chemical stability and resistance to reducing agents. Therefore, corundum is an advanced refractory material in the amorphous refractory. Corundum castable manufacturing is generally made of industrial alumina or bauxite after sintering or electric melting, so industrial use belongs to artificial corundum, but the density and hardness of artificial corundum are relatively large, the use effect is also relatively significant.

Corundum mullite refractory castable is made with less mullite in nature, and the mullite used in industry is artificially synthesized. It has the characteristics of high purity, high density, good structure, low creep rate, small thermal expansion, good thermal shock resistance and strong chemical erosion resistance. It is widely used in the refractory industry, and the development is relatively rapid, but if you compare corundum and mullite, the hardness and true density of corundum is much better than mullite.

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The difference between corundum castable manufacturing and corundum mullite is actually in terms of performance. Corundum mullite refractory castable is mainly of good wear resistance and fire resistance, while corundum mullite refractory castable is mainly of good thermal shock resistance, the aluminum content of corundum mullite castable is not as high as that of corundum high strength castable. But the corundum mullite castable is more flexible.

High Strength Abrasion Castable Sales

June 16, 2021May 6, 2020 by rsrefractorycastable

High strength wear resistant castable is commonly used in boiler, pulverized coal furnace, chain furnace and blast furnace. High strength abrasion castable manufacturing high hardness, wear resistance, durable, is a good performance of wear resistant castable, if you have purchase demand, welcome to contact us.

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High alumina high strength abrasion castable mainly uses high alumina bauxite with high aluminum content as the refractory raw material, and then combines with high aluminum cement. Often used in boilers and pulverized coal furnace and other industrial equipment. This series of wear resistance castable can reach 1750℃, Al2O3 content is high, normal temperature compressive strength more than 70MPa. Mainly has the high cost performance, in the use temperature does not exceed 1350℃ high temperature environment, the acid and alkali corrosion is not big under the high temperature conditions, the price is relatively low, belongs to the middle range of refractory castables.

Corundum high strength abrasion castable manufacturing raw materials containing only aluminum, and the high purity aluminate cement is used as the bonding agent. Its fire resistance can reach 1790℃, high temperature resistance performance is superior, at room temperature pressure strength more than 100MPa. This series of refractory castable actual kiln furnace use temperature is high, in 1400℃ high temperature environment is more suitable to use, mohs hardness is high, acid corrosion resistance is good, can also be used as furnace wall, furnace bottom and other refractory materials, relatively speaking the price is a little higher, the service life is also relatively long.

Silicon carbide wear resistant castable uses silicon carbide raw material as refractory aggregate and combines with pure aluminate cement. It can also be made into silicon carbide wear resistant castable with low cement by using micro-powder technology. Often used in fluidized bed boiler, waste incinerator, etc. The refractoriness reaches 1790℃, and the compressive strength at normal temperature is greater than 120MPa. It has the characteristics of high strength, high hardness, abrasion resistance and acid corrosion resistance. Belong to high-grade refractory material, the oxygen content in the use environment cannot be too high, because sic is afraid of oxidation, the higher the content of sic, the higher the use requirements.

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Other materials composite of high strength abrasion castable manufacturing, for example: rocky, corundum, corundum mullite silicon carbide materials, etc., using high alumina and aluminum content of synthetic mullite refractory raw material, refractory cement as binder, the early can also be made of low cement powder technology corundum mullite high strength wear resistant castable, corundum, silicon carbide castable, so to avoid the disadvantages of the high content of silicon carbide easily oxidized, exert the advantages of mullite materials, that is we introduce several kinds of high strength wear resistant castable material. If you need buy refractory castable, welcome to contact us.

Corundum Castable Manufacturing

June 16, 2021May 5, 2020 by rsrefractorycastable

Corundum refractory castable is mainly made of refractory material and powder material, and add a certain amount of binder and water together. It is different according to the model, corundum castable price will also have a certain difference. But generally speaking, the price difference is not big. If you are interested in corundum castable, you can contact us and we will give you a reasonable quotation.

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Corundum castable has high fluidity and is suitable for construction by pouring method. Moreover, corundum refractory castable is an amorphous refractory castable which can be hardened without heating. It is mainly composed of refractory aggregate, powder, binder, admixture, water or other liquid materials. Generally it is in the use of direct casting, vibration or tamping method casting molding, the series of refractory castables can also be made into prefabricated parts for use.

Corundum Castable Advantage

Corundum castable price generally belongs to the middle, reasonable price, stable and reliable quality. It adopts Al2O3 content more than 90%, mainly uses corundum as the main crystal phase, and adds the right amount of dispersant, coagulant, stainless steel fiber. Compound according to a strict formula. Corundum refractory castable has many characteristics such as good high temperature strength, abrasion resistance and erosion resistance, high thermal conductivity, thermal shock resistance, corrosion resistance, good sealing, quick setting and early strength. The refractory products are also widely used in circulating fluidized bed pot, metallurgy, petrochemical, thermal power and other industries.

According to the requirements of the user, the selection of this series of refractory castable can be used to plan the processing of various parts. Corundum castable with preferential price, with fused corundum as the main raw material, with a variety of super-subdivision and efficient additives composite. 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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RS group is professional refractory material manufacture, we have automatic production line, product quality is stable and reliable, worthy of customer trust. We are committed to the production of high quality refractory products, over the years, with many customers to reach friendly relations of cooperation, you are welcome to come to consult.

High Strength Abrasion Resistant Castable Advantage

June 16, 2021April 30, 2020 by rsrefractorycastable

High strength abrasion resistant castable is composed of high-strength aggregate and powder mineral additives, which has the characteristics of small wear resistant loss, high strength, arbitrary shape, strong integrity, simple construction and good construction performance. Abrasion resistant castable manufacturing because of the addition of polymer, make its base concrete bond firm, reasonable price, for the need to have wear-resisting properties of the construction site is the preferred refractory material.

Abrasion resistant castable manufacturing

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High Strength Abrasion Resistant Castable Advantage

1. The low content of cement in the wear resisting material, that is, the low content of calcium oxide, reduces the production of low melts in the material, thus improving the product’s refractoriness, high temperature strength and slag resistance;

2. The mixing water consumption of this refractory material is only about half of that of ordinary castable, so the density of castable is increased and porosity is reduced.

3. After forming and curing abrasion resistant castable manufacturing, the generated cement hydrate is less. During heating and baking, there is no large amount of water leakage, which reduces the strength of the medium temperature.

Abrasion resistant castable manufacturing should pay attention to strictly control the proportion of water added in the construction, the product should be used in the whole package, should be used in time after mixing, if not used in time, it is prohibited to use. And after pouring construction to do the maintenance work, in strict accordance with the oven curve for baking.

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High Strength Abrasion Resistant Castable Application

1. Wear resistant lining board in coal industry gangue bin, scraper, chute, sieve funnel, etc.

2. Mixing bin, sintering bin and feeder of blast furnace in iron and steel industry.

3. Coal discharging ditch, coal scuttle, coal storage bunker, slag dredger and water treatment in power generation industry.

4. Anti-corrosion ground and pump foundation in chemical industry.

Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is a refractory production comprehensive enterprise, committed to the production and development of various high-quality refractory products, products exported to India, North America, South Africa, southeast Asia and other regions, welcome to come to consult and purchase.