New construction method of 100MT ladle permanant layer

In order to improve the material service life, China An Steel adjusts the construction method of their 100MT LF ladle as following.If you need any fire clay bricks , welcome to view our website to know futher information.

1.Install bottom well block mold, then put one layer of high alumina blowing felt on the bottom.
2.Use mixer to mix running castable into running condition, to install bottom permanant layer.
3.After the running castable curdled, install bottom working layer.
4.Put one layer of high alumina blowing felt on the ladle wall.
5.The gap distance between ladle wall working layer and high alumina blowing felt would be permanant layer thickness (normally would be 70-110mm). After installing working layer of 3-5 layers (about 300-500mm high), inject running castable into the gap between ladle wall working layer and high alumina blowing felt. Then use trowel to make the castable hard. Repeat the above procedure until LF construction finished.
6.On basis of optimized sintering method, sinter the ladle for 24 hours. After sintering, the ladle can be used.

Install the LF in above method, it has advantages as following.

1.Permanant layer and working layer are installed at same time, in which way they can be combined closely. During sintering period, deformation of permanant layer can be sperated. In this way, gap would not appear, and improve safe of the LF.
2.Permanant layer running castable is of high strength, it would not be easy to be damaged when unpacked and translated.?
3.No need mold, in which way can avoid damage the ladle brick by vibrating.
4.No need to sinter the permanant layer seperately. The LF would be sintered for 24 hours in optimized method. During actual working, it would not cause problem of gas in melton steel rising up.
There have many kinds of refractory products in our factory.Such as fire brick for sale,refractory products,refractory raw materials and so on.When you need any refractory products , welcome to view our website to know more details.
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Come to know the application of fire bricks on chinafirebrick

Would you like to know more fire brick for sale?There have many kinds of refractory products in our factory .The storage and installation parameters associated with monolithic refractories vary across specific manufacturers and products but, generally speaking the materials and water used to mix the material should be between 60 degrees and 80 degrees Fahrenheit at the time of installation and during the period of time within which the “initial set” takes place.
When long-term climate controlled storage of materials is not possible, the following tips may prove to be valuable:
Consider temporary heated storage such as a shipping container, tent, or trailer.
Consider encapsulating and heating the work area. In addition to ensuring that the materials are installed at the proper temperature, encapsulating the work area also contributes to the comfort of the employees performing the work and prevents dust from traveling to unintended areas.
Relocate items not used during a maintenance outage to accommodate material storage.
Coordinate “just in time” delivery of materials from a climate controlled environment to minimize the period of time the materials are exposed to cold temperatures.
Use totes, barrels, tanks, etc. in conjunction with heating devices in order to ensure water is the proper temperature prior to mixing. Be careful when heating water. If the water is too warm, it can cause the material set-time to decrease which also has the potential to adversely impact material properties and performance.When you need any china fire brick , Please tell us the product material, style, size and quantity ordered and other specific requirements, so our customer service staff to give an accurate quote.
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How To know more details about cold weather refractory installation

Changxing Refractory is a Chinese leading refractory and oil fracturing proppant manufacturer & supplier with a wide range industries in high temperature field . Therer have many kinds of fire brick for sale in changxing refractory, Changxing has become a professional manufacturer with various refractory materials and oil fracturing proppant both in domestic and international market during 30+ years, whose customers covers North America, Middle East, Asia, Africa, etc.As a new year begins many of us find ourselves confronted with the prospect of a long winter. While most do not look forward to the short days and freezing temperatures because they are uncomfortable, filled with scraping and shoveling, and contribute to poor driving conditions, those of us in the refractory industry are confronted with another challenge at this time of year; installing monolithic refractory materials in cold temperatures.
Monolithic refractory materials, which for the sake of this discussion include castable and gunable products as well as mortars and plastics, must be stored at and installed within specific temperature parameters in order to achieve the desired property values and expected performance levels. Failure to address cold temperatures can adversely impact characteristics such as product set-times and strengths to name a few.
China refractory brick has a production line,china refractory brick which is base on oil & gas applied ceramic proppant, and also with 3 factories focusing on all kinds of refractory materials used for iron & steel casting, cement, glass petrochemical and ceramics industries. With abundant sources and professional techniques, Changxing Refractory would like to build a reliable and efficient platform for customers all over the world.
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would u like to know more information about Refractory Dry-Out？

Changxing Refractory is a Chinese leading refractory and oil fracturing proppant manufacturer & supplier with a wide range industries in high temperature field . From a refractory bricks manufacturing factory, Changxing has become a professional manufacturer with various refractory materials and oil fracturing proppant both in domestic and international market during 30+ years, whose customers covers North America, Middle East, Asia, Africa, etc.
For many refractory installations, the dry-out portion of the project can be the most frustrating. It looks like the work is completed, the vessel looks brand new, and there are always intense pressures to “fire it up” and get production ramped back up after a costly outage. At Schad, we are often asked by customers, “Do we really need to do this?” or “Isn’t there something that we can do to speed this up?” In some cases, alternative materials may be an option, and may provide value if they can eliminate or expedite this step of the project, however, once the materials have been placed the answer is almost certainly a resounding, “No!”
Although it may be tempting to speed things up or by-pass the dry-out step altogether, it is critical to understand that aggression with regard to a dry-out schedule in the short-term can have highly costly long-term ramifications. Wherever possible it is advisable to be conservative. Getting a refractory lining too hot too fast can cause excessive cracking, spalling, or may even cause significant portions of a new installation to blow up. It may also negatively impact the properties achieved by the new materials decreasing their useful lifespan.
There have many kinds of fire bricks in our factory.what's more ,There also have many kinds of refractory products in chinafirebrick.Always consult the refractory installer and the material manufacturer in order to obtain a dry-out schedule and adhere to it as closes as possible in order to avoid major pitfalls.Changxing has a production line, which is base on oil & gas applied ceramic proppant, and also with 3 factories focusing on all kinds of refractory materials used for iron & steel casting, cement, glass petrochemical and ceramics industries. With abundant sources and professional techniques, Changxing Refractory would like to build a reliable and efficient platform for customers all over the world.when u need any fire brick ,welcome to know futher information from our website.

The measures to guarantee construction quality of heating furnace clay castable

In order to guarantee the construction quality of the casting material, combined with the manufacturer's technical requirements, the characteristic make the following measures in the actual casting process.

(1)using a vibrator when pouring vibration is the key to the construction of, if ignore the operation requirements, in the process of casting is prone to honeycomb pitting surface, even the hole, or under the anchor bricks appeared empty, the anchor bricks down, lead to roof defects such as uneven.

(2) Before pouring in the roof with set both sides wall hopper, evenly spread at the same time, material in case the template and expansion joint plate displacement. After uniform fabrics, with high frequency vibrator leveling, vibrator to slow in slow out, not vibration and lower anchor bricks, vibration rods around slowly allocated to ensure jack get to vibration, especially the corners should be more careful vibrating, shall not leak.

(3)after anchorage brick to put, and make it closely contact with top material surface and flat, with a fixed clamp, and make the anchor bricks face contact with the template plane.

(4)to strictly control the moisture, stir for the first time, according to the requirements of mixture ratio of water to try mixing.

(5)due to the furnace frame is too big, to block casting, casting template should have good rigidity, the surface of the template should be greased or waxing process, in order to open mold.would u like to know other fire brick ?There have many kinds of fire bricks in our factory.Welcome to view our website anytime.
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The application of mullite brick

Mullite brick is a kind of high alumina material refractory. Generally the alumina content is 65%～75%.

It has good refractoriness which can reach to more than 1790℃ . The refractoriness under load is 1600～1700℃ and cold crushing strength is 70～260MPa.Good shock resistance. It is devided into sintered mullite brick and electric fused mullite brick. Sintered mullite bricks is made by using high alumina bauxite as raw material, adding some clay or raw bauxite as bonding agent ,then moulding and sintering. Electric fused mullite bricks made by high grade bauxite, industrial alumina and fire clay as raw material, adding charcoal or coke fines as reducing agent. After moulding, made by reduction electric melting method. The crystallization and shock resistance of electric fused mullite is better than sintered mullite.would u like to know more kinds of fire brick ? Welcome to view our website to know more refractory products.
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Introduction of ceramic fiber castable

Ceramic fiber castable uses ceramic fiber as raw material and made by adding various filler, bonding material and other additives. It has not only the excellent property which specially possessed by shaped ceramic fiber product, but also widened the application field due to its convenient construction character and physical property.

Ceramic fiber castable has the following advantages: convenient and quick construction, it specially suits for wall lining which has complex shape, it enable the wall to be easy constructed and finally gets good integrity. Besides, the characteristics of low thermal conductivity, low thermal capacity, thermal shock resistance, good fracture resistance also make it strong to resist erosion. After pouring, the mold can be removed in 4-8 hours.

Application fields: industrial kilns wall lining, high temperature kilns insulation layer lining, ladle baking machine cover lining, high temperature tunnel inner lining.would u like to know more kinds of refractory products ?welcome to view our website to know more kinds of fire bricks .
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Fused zirconia corundum brick

Fused zirconia corundum brick is also called AZS, which is abbreviation of zirconia corundum brick. The zirconia corundum is kind of white solid, made by pure aluminum oxide, 65% purity zirconium oxide and silicon dioxide 34% purity, cooled in the model after melting into the electric melting furnace. Its petrographic structure is consisted of zirconium corundum and plagioclase eutectoid and glass phase. From the phase of speaking, it is eutectoid phase zirconium corundum and oblique stone body. The glass phase is filled between their crystals. Fused zirconia corundum brick is mainly used in glass industry kiln.There also have other kinds of fire brick in our factory.Come to know more information about refractory products .
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Purposes of steelmaking

Steel is made by pig iron produced by blast furnace and DRI sponge iron and scrap as raw material, using different melting methods into steel, which include converter steelmaking method, open hearth furnace, electric arc furnace steelmaking etc. three categories. All the three kinds of steel-making process can meet the general quality requirements of steel users.

In order to meet requirements for higher quality and more varieties of high-grade steel, there has a variety of handling methods for molten steel outside of the furnace (also known as refining), such as blowing argon, vacuum degassing and desulfurization outside of furnace etc. By additional refining processing of molten steel produced from converter, open-hearth furnace and electric arc furnace etc, we can get advanced steel grades.

For some high-quality steel for special purpose and special requirements, if further processing outside of furnace still can not meet requirements, then we will use a special method for steel refining, such as ESR, which is a complicate refining process need secondary refining. After got molten steel from converter, open-hearth furnace or electric arc furnace steel smelting, do casting for forging to make it as electrode, then start secondary refining by heating with remelting slag.There have many kinds of refractory products in our company , such as fire brick, refractory nozzle ,refractory raw materials etc.
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