Refractory Blog Archives - Rongsheng Refractory Castable Manufacturer

Corundum Refractory Castables For Sale

June 16, 2021May 26, 2020 by rsrefractorycastable

Corundum castable is a refractory castable composed of corundum aggregate and powder and binder. Corundum refractory castables has higher mechanical strength and abrasion resistance than high alumina refractory castable and mullite refractory castable. It is mainly used as lining material of various kilns, such as boiler, blast furnace hot blast furnace, heating furnace, ceramic kiln and so on.

Get Quotation

The content of Al2O3 of rigid jade refractory products is more than 90%. The refractory products with corundum as the main crystal phase are made of dispersant, coagulant and stainless steel fiber, which are then compounded in strict accordance with the formula. It has high temperature strength, wear resistance and erosion resistance, high thermal conductivity, thermal shock resistance, corrosion resistance, good sealing performance, quick setting early strong and other characteristics. Corundum castable 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 refractory castables is widely used in circulating fluidized bed boiler, metallurgy, petrochemical, thermal power industry and other fields. This series of refractory castable can also be customized according to customer requirements. Corundum castable is mainly made of fused corundum and then compounded with a variety of fine powders and high-efficiency additives. The main features are high strength, good volume stability, excellent corrosion resistance, not affected by H2,CO and other reducing gases.

The corundum refractory castables are selected according to the use position and temperature. The specific types can be divided into chromium corundum castables, zirconium corundum castables, brown corundum castables, composite corundum castables, etc. Generally speaking, the chrome 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℃. Zirconium corundum castable is mainly used in glass kiln and has the advantage of strong resistance to glass erosion. Brown corundum castable has good wear resistance and can be used for coal injection pipe in power plant, boiler lining, rolling furnace sliding rail, etc. The compound corundum castable is a compound corundum castable which is made by adding specific materials according to the different temperature and environment. Generally used in cement rotary kiln, non – ferrous metal melting furnace and steel industry.

Get Quotation

This series of refractory castable shall be stirred by a forced mixer, with each bag as a whole unit, and then mixed with multiple bags according to the actual amount. When the temperature is low or high, heating or cooling measures must be adopted to meet the requirements of the construction temperature. After the corundum castable is mixed with water, the construction must be completed within 30 minutes. It is strictly prohibited to mix the castable back with water or mix it with water twice.

High Alumina Refractory Castable Introduction

June 16, 2021May 22, 2020 by rsrefractorycastable

High alumina refractory products take up a large proportion in the construction of kilns. With the development of refractory materials, high alumina castable is widely used in kilns due to its convenience in construction. Rongsheng high alumina castable is a refractory castable made of high aluminum raw material as aggregate and powder, adding binder.

Get Quotation

It has high mechanical strength and good thermal shock resistance, anti – wear corrosion and other high – quality properties. It is mainly used as the lining of boiler, blast furnace hot blast furnace, heating furnace, ceramic kiln and so on.

The low content of cement in Rongsheng high alumina castable effectively reduces the production of low soluble material, thus improving the product’s fire resistance, high temperature strength and slag resistance. When mixing, the mixing water consumption is only about half of that of ordinary castable, so the density of castable is improved and the porosity is reduced. In addition, after molding and curing, the generated cement hydrate is less, and when heating and baking, there is no large amount of water leakage, reducing the strength of the medium temperature.

Get Quotation

Rongsheng high alumina castable at room temperature, with the addition of cement content, its wear will gradually reduce. We produce and sell various types of refractory castable cement, have a number of advanced refractory production lines, we are committed to the production of high efficiency and high quality refractory products. If you want to purchase refractory products, please feel free to contact us. We will provide you with high quality refractory materials and considerate service.

Clay Refractory Castable in Ireland

June 16, 2021May 21, 2020 by rsrefractorycastable

Clay refractory castables are sold all over the world, and we have recently entered into a friendly relationship with a customer in Ireland. Clay castable is widely used in various industrial furnaces. Generally speaking, the outlet temperature of clay refractory castable export is about 1000~1200℃.

Get Quotation

You can’t just look at the price when you buy clay castables. After all, the price determines the quality. When some customers purchase refractory castable, they hear that other manufacturers are cheaper, so they directly place orders in the cheaper one without paying attention to the quality of the product. In the end, there will be a lot of problems in the use of the product.

There is the quality of silicon powder added when making refractory castable, some of the addition of low-grade silicon powder, the strength of castable later will have a certain problem, silicon powder quality is not good castable, after drying, with the hand touch will peel, not to mention the strength and use time. There is no way to guarantee user usage. For the clay refractory castable export, the quality must be stable and reliable so that customers can use it at ease. Procurement of refractory castable, firmly believe RS material, quality assurance, considerate after-sales service.

The bulk density of clay refractory castable export is different from that of clay dense castable. The bulk density of general clay castable is 2.1g/cm3, while the bulk density of dense clay castable is 2.3g/cm3. Because other matrix materials are added in the process of dense clay castable, it is more slag and erosion resistant.

Get Quotation

We are a professional refractory products manufacturer, committed to the production of a variety of high quality refractory materials, the quality is stable and reliable, worthy of customer trust, welcome to consult and purchase.

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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).

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.

Get Quotation

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.