News-Henan Armor Energy Saving Technology Co., Ltd

19

2023-05

Product Case I High Temperature Adhesive

1、Product DescriptionThe armor energy-saving series high-temperature adhesive is mainly made by mixing and stirring nanoscale silica colloid,high-purity kaolin,and expansion agent in a certain proportion.2、Performance indicatorsThis product can be used by opening the packaging without the need for any additives.The bonding strength of any temperature range from room temperature to service temperature is above 2MPa,overcoming the disadvantage of most adhesives having no bonding strength between 650℃and 1000℃.At the same time,it can also achieve bonding between different materials and has good bonding effect.Product datakaijia high temperature binderkaijia-HTB 1400typekaijia-HTB 1600typeＡl2O3 w/%20～30SiO2 w/%58～68Refractoriness/℃14701580Modulus of rupture/ＭＰa110℃×24h22650℃×3h223、Product Featuresa)Good fire resistance;b)High bonding strength;c)Good bonding stability;d)Wide range of use;e)Free water free,with thin mortar joints;(Traditional refractory mud loses its fluidity when spread on lightweight bricks,resulting in larger mortar joints.)f)Bricklaying can instantly produce good adsorption power.4、Typical ApplicationsMainly used for bonding refractory materials in various high-temperature kiln masonry;Especially during emergency repairs,it can replace traditional fireclay.

19

2023-05

The difference between special refractory materials and traditional ceramics and refractory materials

Special refractory materials are a new type of inorganic non-metallic materials developed on the basis of traditional ceramics and general refractory materialsMaterial.It has the following characteristics:high melting point,high purity,good chemical stability and thermal shock stability.Special refractory materials include high melting point oxides and refractory compounds,as well as derived cermets,high-temperature coatings,and high-temperature materialsFibers and reinforcing materials.Compared with traditional ceramics and refractory materials,special refractory materials have high purity,high melting point,electrical,thermal,mechanical,and chemical propertiesCan be good,therefore,can be used in high,precision,and cutting-edge technology;In terms of manufacturing process,raw materials generally need to be pre fired.moldingIn addition to traditional methods,new processes such as vapor deposition and hot pressing are also used.The forming material is a micron level micro powder material,which needs to be fired at a very high temperatureAt high temperatures and in a protective atmosphere,it can be made into thin products(in a semi transparent state).

19

2023-05

Characteristics and application range of high-purity alumina

High purity alumina is also an important material in the energy field and can be used for various applications,including fuel cells and batteries.In fuel cells,high-purity alumina is used as a catalyst carrier to provide a stable platform for the generation of electrical energy through the reaction of oxygen and hydrogen.High purity aluminum oxide is also used as a separator in the battery.Its high purity and chemical stability help to improve the performance and service life of the battery.The transportation industry is another increasingly important field of high-purity alumina.High purity alumina is used to produce high-strength,lightweight components,which helps to improve fuel efficiency and reduce emissions.For example,high-purity alumina is used to manufacture ceramic brake discs,which are lighter,stronger,and more reliable than traditional steel discs.High purity alumina is also used in the production of turbocharger components,and its ability to withstand high temperatures and corrosive environments is crucial for ensuring reliable performance.In summary,high-purity aluminum oxide is a key material in many industries,and its application range continues to expand with the emergence of new technologies.Its unique performance combination,including excellent electrical insulation,corrosion resistance,and wear resistance,makes it an important component of various high-performance products.As the demand for high-purity alumina continues to grow,we can look forward to seeing new applications and innovations to further demonstrate the performance of this material.High purity alumina(HPA)is a form of alumina that is in increasing demand due to its performance and wide range of applications.It is produced by refining bauxite(a natural ore)to remove impurities and produce products with a purity exceeding 99.99%.This high purity endows high-purity alumina with outstanding mechanical,thermal,and electrical properties,making it an ideal choice for many industries such as electronics,energy,and transportation.One of the significant advantages of high-purity alumina is its excellent electrical insulation performance,which makes it a key component in many high-performance electronic devices.High purity alumina is used as a substrate for manufacturing LED lighting,and due to its energy efficiency and long service life,LED lighting is becoming increasingly popular.High purity alumina is also used to produce thin films that can be deposited on electronic components to improve their conductivity,heat resistance,and corrosion resistance.In addition,high-purity alumina is also used in high-voltage insulators,capacitors,and other electronic components,and its excellent dielectric strength ensures reliable performance.Another significant advantage of high-purity alumina is its excellent corrosion resistance and wear resistance.High purity alumina is an ideal material suitable for harsh environments where other materials can rapidly degrade or fail.It is commonly used in the production of oil and gas drilling equipment,as well as high-performance engine components.High purity alumina is also used in cutting tools and grinding products,and its high hardness and wear resistance enable it to maintain its performance for a long time.High purity alumina is also an important material in the energy field and can be used for various applications,including fuel cells and batteries.In fuel cells,high-purity alumina is used as a catalyst carrier to provide a stable platform for the generation of electrical energy through the reaction of oxygen and hydrogen.High purity aluminum oxide is also used as a separator in the battery.Its high purity and chemical stability help to improve the performance and service life of the battery.The transportation industry is another increasingly important field of high-purity alumina.High purity alumina is used to produce high-strength,lightweight components,which helps to improve fuel efficiency and reduce emissions.For example,high-purity alumina is used to manufacture ceramic brake discs,which are lighter,stronger,and more reliable than traditional steel discs.High purity alumina is also used in the production of turbocharger components,and its ability to withstand high temperatures and corrosive environments is crucial for ensuring reliable performance.In summary,high-purity aluminum oxide is a key material in many industries,and its application range continues to expand with the emergence of new technologies.Its unique performance combination,including excellent electrical insulation,corrosion resistance,and wear resistance,makes it an important component of various high-performance products.As the demand for high-purity alumina continues to grow,we can look forward to seeing new applications and innovations to further demonstrate the performance of this material.

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2023-05

The use and characteristics of mullite insulation bricks

Insulating refractory material refers to a lightweight refractory material with high porosity,low bulk density,and thermal insulation properties.The disadvantage of this material is that its porosity ranges from 30%to 50%(0.3g/cm3 to 1.3g/cm3),which leads to tissue loosening,low mechanical strength,and poor wear resistance.Generally,it does not bear loads and is protected by dense refractory materials.It is often used for kiln wall insulation or drying room external wall insulation.In recent years,the working faces of prefabricated tunnel kilns have also adopted lightweight high alumina or lightweight mullite;In this case,it is necessary to greatly improve the strength and resistance to airflow erosion of insulation refractory materials due to their direct contact with flames and bearing certain loads.Practice has proved that the kiln lining is made of refractory oxide hollow ball products with a hole diameter of less than 0.6mm and produced by foam.Because these materials have high compressive and flexural strength,their service life can be greatly improved.For example,the compressive strength(~10MPa)and service temperature(16000℃)of alumina hollow ball products are far higher than other lightweight refractory materials.1.Mullite insulation bricks are a new type of energy-saving refractory material with high temperature resistance,high strength,low thermal conductivity,and significant energy-saving effect;It is suitable for ceramic roller kiln,electric porcelain and arts and crafts porcelain shuttle kiln,step-by-step heating furnace,etc.In recent years,prefabricated tunnel kilns have been applied in the wall material industry,with the following technical indicators:a.Chemical composition:Al2O3:≥50%;Fe2O3:≤0.8%b.Volume density:~1.2g/cm3c.Normal temperature compressive strength:≥8MPad.Thermal shock resistance(1100℃air cooling):20 timese.Load softening point(0.1MPa):≤1450℃f.Thermal conductivity:W·(m·K)-1(350℃)≤1%(1550℃,12h)g.Product specification(mm):400×four hundred×one hundred2.The ceramsite lightweight refractory concrete block takes aluminate cement-65 as the combination agent,shale as the combination agent,ceramsite,fly ash ceramsite or high alumina ceramsite as the aggregate,and the lightweight product is formed by vibration or vibration compression method.The technical indicators of ceramsite lightweight refractory concrete blocks are as follows:a.Level:GL premium product;GL First Class Productb.Volume density after drying at 110℃(g/cm3):1.65;one point sevenc.Normal temperature compressive strength(MPa):40;thirty-fived.110℃flexural strength after drying(MPa):3.5;three

19

2023-05

New material mullite insulation bricks are coming, do you know about it?

The mullite insulation brick produced by Jinxin refractory material is a high alumina refractory material with mullite as the main crystal phase.The general alumina content ranges from 65%to 75%.In addition to mullite,the mineral composition also contains a small amount of glass phase and cristobalite,with lower alumina content;Those with higher levels of alumina also contain a small amount of corundum.Mullite insulation bricks can be directly used for high-temperature kiln lining.The product characteristics of Mullite insulation bricks are:1.Low thermal conductivity,with excellent thermal insulation effect;2.Mullite insulation bricks have low heat melting,and due to their low thermal conductivity,the Mullite series lightweight insulation bricks accumulate very little heat energy,resulting in significant energy-saving effects in intermittent operations;3.Low impurity content has a very low content of oxides such as iron and alkali metals,therefore,high fire resistance;The high aluminum content maintains good performance in a reducing atmosphere;4.Mullite insulation bricks have high hot compressive strength;5.Accurate exterior dimensions accelerate the construction speed,reduce the use of refractory mud,ensure the strength and stability of the masonry,and thus extend the service life of the lining;6.Mullite insulation bricks can be processed into special shapes.To reduce the number of bricks and joints.Classification of mullite insulation bricks:Mullite insulation bricks are mainly divided into light and heavy mullite bricks based on their density,and are mainly divided into 1350 mullite insulation bricks,1450 mullite insulation bricks,1550 mullite bricks,etc.according to their usage temperature.The performance and application of mullite insulation bricks produced by Jinxin refractory material:high fire resistance,up to 1790℃or above.The starting temperature for load softening is 1600~1700℃.The room temperature compressive strength is 70-260MPa.Good thermal shock resistance.There are two types of sintered mullite bricks and fused mullite bricks.Sintered mullite bricks are made from high alumina bauxite clinker as the main raw material,with a small amount of clay or raw alumina added as a binder,and then formed and fired.Electric fused mullite bricks are made from high alumina,industrial alumina,and refractory clay as raw materials,with the addition of charcoal or fine coke particles as reducing agents.After forming,they are manufactured using the reduction electric melting method.The crystallization of fused mullite is larger than that of sintered mullite,and its thermal shock resistance is better than that of sintered products.Their high-temperature performance mainly depends on the content of alumina and the uniformity of the distribution of mullite phase and glass.Mainly used for hot blast furnace roof,blast furnace body and bottom,glass furnace regenerator,ceramic sintering kiln,dead corner lining of petroleum cracking system,etc.

News

19

Product Case I High Temperature Adhesive

19

The difference between special refractory materials and traditional ceramics and refractory materials

19

Characteristics and application range of high-purity alumina

19

The use and characteristics of mullite insulation bricks

19

New material mullite insulation bricks are coming, do you know about it?

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