Market demand analysis of magnesium dolomite refractory

At present, combined with Mg-Cr2O3 brick, direct combination with Mg-Cr2O3 brick is the main material of firing furnace of AOD furnace and large-scale cement kiln in China. This brick has a load softening temperature, high temperature strength, high temperature stability and good volume characteristics.



However, the use of Mg-Cr2O3 bricks as AOD furnace linings and large cement kilns can lead to environmental pollution; non-continuous erosion and anti-spalling properties are not ideal; chromium in Mg-Cr2O3 bricks will be absorbed by the molten steel, resulting in Chromium content of chromium in molten steel is difficult to control; at the same time, domestic chromite resources are relatively scarce, with low grade, high content of harmful impurities SiO2, and high price.

Europe, Japan and other countries out of resources and environmental considerations, almost all AOD furnaces are made of magnesium dolomite refractory lining material. In the future, refractory materials that pollute the environment will no longer be produced and import restrictions will be imposed.



With China's accession to the WTO, the quality of national environmental protection and environmental requirements will certainly be higher and higher. Taking into account the limited resources and long-term development needs, environmentally friendly products will surely become the mainstream of the future.

The best Car Bottom Furnace from Luwei Car Bottom Furnaces.

Description of Car Bottom Furnace

Car Bottom Furnace is also called as Shuttle Furnace Car Bottom Furnace and Pottery Kiln. Car Bottom Furnace is welded for heating treatment ceramic tiles/bricks, sintering glass materials, pottery, sintering kinds of ceramics, heating treatment for metals and heat treatment of the new materials and composite materials.



The design of a Car Bottom Furnace incorporates a rail mounted product car to transfer parts into and out of the furnace. The Car Bottom Furnace is an excellent solution to heat-treat large and heavy welded fabrications such as gear blanks, oil drill pipe, drive shafts, and similar type products.

Features of Car Bottom Furnace
1200°C degree 1600°C degree metal or ceramics heat treatment furnace Car Bottom Furnace is welded by steel and profiled steel; furnace chamber is ceramic fiber and high quality electric resistance wire/SiC heaters, which can save 40% energy than brick furnace chamber. Car Bottom Furnace is mainly used for annealing, normalizing and stress relieving of bars and tubes, forgings, large weldments and castings.

Impurities mixed will affect the electrical properties of ceramic pieces

Fused Cast AZS Bricks - Size and shape of the ultra-poor on the assembly, especially for the use of a closure process manufacturers will cause positioning difficulties, and for the entire pipe coaxiality, air tightness and other assurance buried under the hidden dangers, thereby reducing the reliability of the product . In order to ensure the size of the porcelain shell, the precision of the shape should be strengthened to control and manage all the processes of porcelain production, including raw material processing, slurry preparation, molding, wax removal and firing processes.



Defects in the sealing surface Because the sealing surface is the key part of the ceramic parts and metal parts, it will directly affect the internal quality of the metal and the sealing, so the quality requirements of the sealing surface for each manufacturer are very strict. I plant the sealing surface of the site requires no cracks, pores, scratches, pits, mezzanine and so on. Porcelain pieces of impurities in porcelain impurities mainly from raw materials and processes. Some impurities in the oxidizing atmosphere is color, such as Cr2O3, Fe2O3, TiO2, etc., so under light can see the red, yellow or black spots, some impurities are colorless.

The inclusion of these impurities will affect the electrical properties of ceramic pieces, dielectric loss increases, reducing the level of pressure. Therefore, porcelain manufacturers should strictly control the quality of raw materials and process. These are some of the more likely to appear in the production test, these are all porcelain manufacturers can control or improve some of the problems, how to control these issues is the need for manufacturers to take seriously.

The best Drop Bottom Sintering Furnace of Drop Bottom Furnace from Luwei Furnace.

Luwei Furnace supplies electrical Drop Bottom Furnaces which are intended for solution heat treatment of Aluminum parts. Drop Bottom Sintering Furnaces integrate solution heat treatment and quenching into one controllable operation. There are manufactured in various sizes according to the customer requirements.

1600°C Electric Drop Bottom Furnace is mainly used in the experiment and production of ceramics glasschemical industry electronics metallurgy, new material, development machinery refractories, building materials, special materials and other products. Loading from bottom Lifting bottom controlled by electric freely lift. Up and down limited switch double safety for bottom moving.



Drop Bottom Sintering Furnace
Brand Name: Luwei
Model: 1600C Electric drop bottom loading furnace
Max.Temperature: 1600°C
Working Temperature: 1600°C
Furnace Chamber Size: 500*500*500MM
Temperature Controller: PID and SCR
Control Accuray: ± 1°C
Heating Element: MoSi2 rods
Thermocouple: B type
Chamber Material: High purity Ceramic fiber


The 1600C Electric drop bottom loading furnace is one of the type of Luwei Drop Bottom Sintering Furnace, Drop-bottom aluminum heat treat furnaces are used to solution heat treat aluminum alloys. 1600C Electric drop bottom loading furnace is High purity alumina fiber insulation and Morgan materials brick.

Refractory materials used in optical glass manufacturing

In the optical glass melting, clay kaolin clay crucible and mixer (hereinafter referred to as clay crucible and mixer). Basically belong to AI203 ~ SiO2 binary aluminosilicate refractories, with different content of AI2O3 and SiO2 to decide its manufacturing process and performance.Fused Cast AZS Bricks



In recent years, due to the development of the optical glass industry, the optical glass of the new variety is continuously increasing, and the refractories of the optical glass are also developed correspondingly. In addition to the earlier use of clay, kaolin, bauxite and other natural raw materials to create refractory material. There are pure oxide refractory products. Such as fused silica products, fused corundum products and sintered mullite and other refractory materials. For some new varieties of optical glass melting also used tin dioxide ceramics, platinum, platinum alloys, carbon materials as smelting optical glass high temperature container, the development of new varieties of optical glass and increase the amount of optical glass have played a A certain role in promoting.

In the optical glass melting process, in order to use the crucible method and pool furnace melting method is more common. Crucible type more. Pool melting method with the main furnace using a variety of special shaped or special cast refractories. Although such materials have a complex manufacturing process but a wide variety and high resistance to glass erosion and high temperature mechanical strength, these materials provide the advantages of selective use for melting various glass varieties.

The best Heat Treatment Furnace from Luwei Furnace.

Heat Treatment Furnace chamber is high purity alumina fiber insulation and Morgan materials brick, and save you money when treating large volumes of material per hour with exceptional uniformity and low maintenance.

The lifting and dropping of the Heat Treatment Furnace cover adopt with electromotor to drive the lifter of worm wheel, worm, and screw mandrel to perform. The airproof of furnace cover and retort adopt appropriativesealing ring and impacted structure. There are the vent and explosion door on the Heat Treatment Furnace cover.



Heat Treatment Furnace
Brand Name: Luwei
Model: Heat Treatment Furnace KSS-1600
Max.Temperature: 1600°C
Working Temperature: 1500°C
Furnace Chamber Size: 1200*1200*1200MM
Temperature Controller: 1200*1200*1200MM
Control Accuray: ± 1°C
Heating Element: MoSi2 heaters
Thermocouple: B type
Chamber Material: High purity Ceramic fiber


The Heat Treatment Furnace from Luoyang Luwei include many models like Pottery heat treatment sintering furnace, Trolley heat treatment Furnace, Car Bottom furnace, Car Bottom Hearth furnace and drop bottom loading furnace, etc.

Energy-saving environmentally friendly refractory materials industry

Development of energy-saving environmentally friendly refractory industry in line with the world trend. People need fresh air, clean water, clean food, people need a good living environment. This is the development of energy-saving environmentally friendly refractory industry has become the root cause of the world trend and the fundamental driving force. At the same time, it should be noted that the development of the energy-saving and environment-friendly refractories industry itself also requires the sustained investment of technical production factors. As a result, it not only promotes the self-development of energy-saving and environmental protection industries, but also greatly accelerates the technological progress of the entire country.



Energy-saving environmentally friendly refractory industry is very large market size, a long time, developed countries accounted for a major share of them. The world's major developed countries have always attached great importance to the development of energy-saving environmentally friendly refractory industry. Vigorously developing China's energy-saving and environmentally-friendly refractory industry is in line with the worldwide trend and plays an important role in optimizing the industrial structure and consumption structure.

As we all know, the German government and market in promoting the development of energy-saving environmentally friendly refractory industry is unique in that it spare no effort to strengthen the awareness of energy saving and environmental protection businesses and residents, where possible, the development of environmentally friendly products and manufacturing processes . These two points are particularly worth learning from China. Some Chinese enterprises and individuals are not aware of energy conservation and environmental protection. Governments at all levels should further increase the promotion of energy conservation and environmental protection so that the concept of energy conservation and environmental protection can truly reach people's hearts. As a result, consumer demand for energy saving and environmental protection refractory products will increase greatly. As a result, Is conducive to the expansion of the scale of production of energy-saving environmentally friendly refractory products and energy-saving environmental protection technology development, improvement and promotion.

The Shixing company is adopted on producing high quality Fused Cast AZS Block used in glass furnaces. Established to produce series of shaped blocks Fused Cast AZS-33# Block, Fused Cast AZS-36# Block and Fused Cast AZS-41# Block with annual production capacity 20,000 tons/year. New materials production zone is equipped with two high-temperature shuttle kilns, mainly producing Zircon Brick, Silica Brick, Magnesia Brick, etc.