高アルミナ耐火煉瓦
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耐火物, is a professional refractory bricks (高アルミナ質レンガ) 中国のメーカー. 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 ). でも, 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 | 2級高アルミナれんが | 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 |
| 気孔率 % < | 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, 熱風炉, 電気炉の屋根, 溶鉱炉, reflector furnaces, ロータリーキルライニング.
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% 以上. 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, 低い気孔率, high bond strength, high hardness, high load softness, 良好な耐摩耗性, anti-scouring, 優れた耐熱衝撃性, strong resistance to metal melt and slag corrosion, long life, 等.
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 回, 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, まで 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. 同時に, the slag resistance of high alumina products also has some influence on the stability of the products in the slag. いつもの, 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, 熱風炉, 電気炉の屋根, 高炉, reflector furnaces, and rotary kiln linings. 加えて, high alumina refractory bricks are also widely used as storage lattice bricks for flat furnaces, 注湯システム用プラグヘッド, 吐水口レンガ, 等.
PER耐火物会社について
PER Refractories Manufacturer Company is located in Xinmi City, 河南省, 中国の耐火物の故郷. 当社はRを融合した技術立耐火企業です。&D, 製造, 販売, および技術サービス. この地域の豊富な資源と優れた品質は、比類のない優れた条件を提供します。 耐火物の製造. 当社の主力製品は耐火粘土レンガです, 高アルミナ耐火レンガ, 耐火珪石れんが, マグネシウム耐火レンガ, ムライトレンガ, 断熱レンガ, その他 高温耐性製品.
PERは最も重要なことを考慮します, 私たちはすべての製品を真剣に受け止め、すべての顧客を誠実に受け入れることを信じています. すべてのお客様に迅速かつ高品質な結果を提供するため. PER耐火物は、お客様にとって最も信頼できる耐火物メーカーであり、信頼できるパートナーとなります。.
会社PER耐火物はグリーンの生産拠点です, 省エネ, 環境に優しい新耐火物. 当社はISO9001を取得しました:2008 国際品質システム認証および GB/T24001-2004 / ISO14001:2004 環境マネジメントシステム認証, 企業品質検査機関認証. 当社の製品は以下の地域でよく販売されています 20 世界中の国. 冶金用に好ましい耐火物製品です。, 非鉄, 石油化学, ガラス, セラミックス, およびその他の耐火物産業.
