Bata Refraktori Alumina Tinggi
PER high alumina bricks factory offers high alumina bricks with different aluminum content as well as customized products with physical and chemical specifications that meet your needs. We ensure the best quality while keeping our sales prices as low as possible. We believe in honesty and integrity as your most trusted manufacturer and reliable partner.
Over the years, we have supplied standard refractory firebricks and shaped refractory bricks to various industries and companies. Our service philosophy is to provide fast, high-quality results for all of our customers.
Our products are subjected to stringent quality tests to ensure excellent performance over time.
PER Refractory, is a professional refractory bricks (bata alumina tinggi) manufacturer in China. We can offer you a lower price than the market. Contact us now to get the latest price list of high alumina fire bricks.
Common Grade Classification Of High Alumina Bricks
High alumina refractory bricks is a common refractory material whose main component is aluminum trioxide (Al2O3 ). Namun begitu, when the content of high alumina brick is higher than 90%, it becomes corundum brick.
Common High Alumina Bricks
High alumina brick is mainly divided into common high alumina brick and modified high alumina brick. Ordinary high alumina bricks are the standard fired bricks commonly used. Modified high alumina bricks mainly refer to high-load soft high alumina bricks, slightly expanded high alumina bricks, low creep high alumina bricks, and phosphate-bonded high alumina bricks.
Due to the different needs of each country, the rules for refractory high alumina bricks are also different. PER Refractories can customize high alumina brick products to meet your requirements in terms of physical and chemical specifications.
Related Physical and Chemical Indexes of High Alumina Bricks
| Grade | First grade high alumina brick | Bata alumina tinggi gred kedua | Third grade high alumina brick | Special high alumina brick |
| Grade | LZ-75 | LZ-65 | LZ-55 | LZ-80 |
| AL2O3 %≥ | 75 | 65 | 55 | 82 |
| Fe203 % < | 2.5 | 2.5 | 2.6 | 2 |
| Bulk density g/cm2 | 2.5 | 2.4 | 2.3 | 2.6 |
| Normal temperature compressive strength MPa > | 70 | 60 | 50 | 80 |
| Load softening temperature ℃ | 1510 | 1460 | 1420 | 1550 |
| Fire resistance ℃ > | 1790 | 1770 | 1770 | 1790 |
| Porosity % < | 22 | 23 | 24 | 21 |
| Line change rate % | -0.3 | -0.4 | -0.4 | -0.2 |
Types Of High Alumina Brick
First Grade High Alumina Brick
First-grade high alumina brick refractory temperature 1750℃. Use temperature: 1650℃. Form: solid. Shape: rectangular.
The product has good slag resistance mainly used for masonry blast furnaces, relau letupan panas, electric furnace roofs, relau letupan, reflector furnaces, dan lapisan tanur berputar.
A neutral refractory material with alumina content above 75%.
It is made of bauxite or other raw materials with high alumina content by molding and calcination.
Characterized by high thermal stability and refractories above 1770°C.
Second Grade High Alumina Brick
Second-grade high alumina bricks have a refractory temperature of 1770 (℃) and better slag resistance.
Second-grade high alumina brick is an aluminosilicate refractory material with an aluminum content of 60-75%.
Second-grade high alumina brick has a series of more refractory functions than clay products and is a kind of refractory material with good use and wide use.
Widely used in a variety of hot work kilns. Compared with clay products, it can effectively improve the service life of the furnace.
Third Grade High Alumina Brick
Third-grade high alumina brick is a neutral refractory material with an alumina content of 55% atau lebih. 0.3MPa load softening temperature is about 1450℃.
It is made of bauxite or other raw materials with high alumina content by molding and calcination.
Characterized by high thermal stability, refractoriness above 1770°C, and good slag resistance.
Extra-Grade High Alumina Brick
Extra grade high alumina brick is made of special bauxite raw material, the AL2O3 content of special grade raw material is above 85% and the density is 2.8g/cm.
The refractories of ordinary bricks is 1780℃. The refractories of the special grade brick is 1820℃, the firing temperature is about 30℃ higher than that of the ordinary brick, and the service life of the special grade high alumina brick is twice that of the ordinary high alumina brick.
The high-temperature structural strength, thermal shock stability, and slag resistance of the special grade fire bricks are also 1-2 times higher than those of ordinary high alumina bricks.
The slag resistance of extra-grade brick is strong, and the fatigue resistance under high temperatures is particularly strong.
Aluminum-Chromium Bricks
AlCr brick is a high alumina brick with Al2O3 as the main component and a small amount of Cr2O3.
Aluminum-chromium brick than high alumina brick erosion resistance, aluminum-chromium slag brick, and high-temperature mechanical properties of good characteristics.
AlCr brick has many advantages such as high density, low porosity, high bond strength, high hardness, high load softness, rintangan haus yang baik, anti-scouring, rintangan kejutan haba yang baik, strong resistance to metal melt and slag corrosion, long life, dan lain-lain.
Which is widely used in various smelting equipment and other ultra-high temperature kilns.
Magnesium-Aluminum Brick
Compared with magnesium brick, magnesium aluminum brick has good resistance to rapid freezing and rapid heating and can withstand water cooling 2025 kali, or even more times, which is the outstanding advantage of magnesium aluminum brick.
The refractoriness of magnesium-aluminum bricks is more than 2000℃, the performance of resistance to rapid cooling and heating is better than magnesium bricks, and it can resist the erosion of alkaline slag. It is used to build the roofs of alkaline flat furnaces and electric furnaces for steel making.
The Advantages Of High Alumina Bricks Produced By PER Company
1. The high alumina fire bricks we produce have good thermal conductivity.
2. Load softening temperature because high alumina brick has higher alumina content and fewer impurities. So like those easier to melt the glass body becomes less, so its load softening temperature is relatively high.
3. Refractories high alumina brick refractories than the commonly used clay, semi-silica bricks, and other refractory materials are higher, sehingga 1750 ~ 1790 ℃, is a high-performance refractory material.
4. High alumina refractory fire bricks have good thermal stability.
5. High alumina bricks have a large alumina content, with a certain resistance to acidic slag and alkaline slag erosion. Pada masa yang sama, the slag resistance of high alumina products also has some influence on the stability of the products in the slag. Biasanya, after high-temperature firing, the high alumina brick with fewer pores has more excellent slag resistance.
High alumina fire bricks are mainly used for the masonry of blast furnaces, relau letupan panas, electric furnace roofs, blast furnaces, reflector furnaces, and rotary kiln linings. Sebagai tambahan, high alumina refractory bricks are also widely used as storage lattice bricks for flat furnaces, kepala palam untuk sistem menuang, bata muncung air, dan lain-lain.
Mengenai Syarikat PER Refractory
PER Refractories Manufacturer Company is located in Xinmi City, Wilayah Henan, kampung halaman bahan refraktori di China. Syarikat kami ialah perusahaan refraktori berasaskan teknologi yang menyepadukan R&D, pengeluaran, jualan, dan perkhidmatan teknikal. The rich resources and excellent quality in the territory provide unparalleled superior conditions for the production of refractory materials. Our main products are refractory clay bricks, high alumina refractory fire bricks, bata silika refraktori, bata tahan api magnesium, batu bata mullite, bata penebat, dan lain-lain high-temperature resistant products.
PER considers the most important thing, we believe in taking every product seriously and receiving every customer sincerely. To provide fast and high-quality results for all our customers. PER Refractories will be your most trustworthy refractory manufacturer and reliable partner.
Syarikat PER refraktori adalah asas pengeluaran hijau, penjimatan tenaga, dan bahan refraktori baharu yang mesra alam. Syarikat kami telah lulus ISO9001:2008 pensijilan sistem kualiti antarabangsa dan GB/T24001-2004 / ISO14001:2004 pensijilan sistem pengurusan alam sekitar, pensijilan agensi pemeriksaan kualiti perusahaan. Produk kami dijual dengan baik dalam lebih daripada 20 negara di seluruh dunia. Mereka adalah produk refraktori pilihan untuk metalurgi, bukan ferus, petrokimia, kaca, seramik, dan industri refraktori lain.
