供應(yīng)耐火材料用 鋁礬土
 
中文名稱：鋁礬土
英文名稱：bauxitic rock 
定義：一種富含鋁質(zhì)礦物的化學(xué)或生物化學(xué)巖。主要礦物成分為一水硬鋁石、一水軟鋁石、三水鋁石。主要由鋁硅酸鹽類礦物受強(qiáng)熱化學(xué)風(fēng)化，帶出溶解的氧化鋁，搬運(yùn)到海湖盆地沉積而成。 
 
鋁礬土（aluminous soil；bauxite）又稱礬土或鋁土礦，主要成分是氧化鋁，系含有雜質(zhì)的水合氧化鋁，是一種土狀礦物。白色或灰白色，因含鐵而呈褐黃或淺紅色。密度3.9～4g/cm3，硬度1～3，不透明，質(zhì)脆。極難熔化。不溶于水，能溶于硫酸、氫氧化鈉溶液。主要用于煉鋁，制耐火材料。 
 
鋁礬土產(chǎn)地分布：　　
    目前，已知賦存鋁土礦的國家有49個。中國有豐富的鋁礬土資源，約37億噸，居世界前列，與幾內(nèi)亞、澳大利亞、巴西同屬世界鋁礬土資源大國。但生產(chǎn)供耐火材料用的高鋁礬土的國家只有圭亞那和中國，其他國家的鋁礬土含鐵量高，多用于煉鋁和研磨材料。 　　
    中國鋁土礦資源比較豐富，在全國18個省、自治區(qū)、直轄市已查明鋁土礦產(chǎn)地205處，其中大型產(chǎn)地72處（不包括臺灣）。主要分布在山西、山東、河北、河南、貴州、四川、廣西、遼寧、湖南等地。
 
產(chǎn)品用途：　　
⑴煉鋁工業(yè)。用于國防、航空、汽車、電器、化工、日常生活用品等。 　　
⑵精密鑄造。礬土熟料加工成細(xì)粉做成鑄模后精鑄。用于軍工、航天、通訊、儀表、機(jī)械及醫(yī)療器械部門。 　
⑶用于耐火制品。高鋁礬土熟料耐火度高達(dá)1780℃，化學(xué)穩(wěn)定性強(qiáng)、物理性能良好。 　　
⑷硅酸鋁耐火纖維。具有重量輕，耐高溫，熱穩(wěn)定性好，導(dǎo)熱率低，熱容小和耐機(jī)械震動等優(yōu)點(diǎn)。用于鋼鐵、有色冶金、電子、石油、化工、宇航、原子能、國防等多種工業(yè)。它是把高鋁熟料放進(jìn)融化溫度約為2000～2200℃的高溫電弧爐中，經(jīng)高溫熔化、高壓高速空氣或蒸汽噴吹、冷卻，就成了潔白的“棉花”——硅酸鋁耐火纖維。它可壓成纖維毯、板或織成布代替冶煉、化工、玻璃等工業(yè)高溫窯爐內(nèi)襯的耐火磚。消防人員可用耐火纖維布做成衣服。 　　
⑸以鎂砂和礬土熟料為原料，加入適當(dāng)結(jié)合劑，用于澆注盛鋼桶整體桶襯效果甚佳。 　　
⑹制造礬土水泥，研磨材料，陶瓷工業(yè)以及化學(xué)工業(yè)可制鋁的各種化合物。 　　
 
鋁礬土理化指標(biāo)：
等級             化學(xué)成分/%         耐火度     體積密度
               Al2O3  CaO   Fe2O3
　　特級       >85    <0.6      <2.0     >1790        >3.0
　　一級       >80    <0.6      <3.0     >1790        >2.8
　　二級甲     70~80  <0.8      <3.0     >1790        >2.65
　　二級乙     60~70  <0.8      <3.0     >1770        >2.55
　　三級       50~60  <0.8      <2.5     >1770        >2.45
鋁礬土產(chǎn)品的區(qū)別：　　
耐火材料行業(yè)所稱的鋁礬土通常是指煅燒后Al2O3>=48%、而含F(xiàn)e2O3較低的鋁土礦，高鋁礬土熟料是經(jīng)過煅燒的鋁礬土礦。熟料為灰白淺黃及深灰色，它主要用于高鋁質(zhì)耐火材料，也可用來制作電熔棕剛玉。高鋁礬土熟料是按AL2O3含量及Fe2O3、TiO2、CaO+MgO、K2O+Na2O等雜質(zhì)含量和熟料體積密度與吸水等項(xiàng)指標(biāo)來分級的。 　　
輕燒鋁礬土，又稱輕燒粉，是凈水劑聚合氯化鋁的原材料，是鋁礬土經(jīng)過加工生產(chǎn)出來的礦粉材料，主要成分是氧化鋁，系含有雜質(zhì)的水合氧化鋁，是一種土狀礦物。白色或灰白色，因含鐵而呈褐黃或淺紅色。密度3.9～4g/cm3，硬度1～3，不透明，質(zhì)脆。極難熔化。不溶于水，能溶于硫酸、氫氧化鈉溶液。
 
鋁礬土常用規(guī)格：0-3mm 3-5mm 5-8mm 8-10mm 100目 200目等，可按客戶要求進(jìn)行調(diào)整。
 
鋁礬土包裝方式：25kg/袋，雙層編織袋包裝，也可用噸袋包裝，可按客戶要求進(jìn)行調(diào)整。
滿堂紅磨料磨具廠簡介：
【鞏義市滿堂紅磨料磨具廠】位于河南省鞏義市，距千古名剎少林寺15公里處，主營：金剛砂、棕剛玉、白剛玉、黑剛玉、鋁礬土骨料、碳化硅、拋光砂、除銹砂、鐵砂、玉米芯、核桃殼、澆注料、搗打料等產(chǎn)品。專業(yè)生產(chǎn)各種型號棕剛玉段砂、一.二.三級粒度砂、耐磨地坪專用砂、五金拋光專用砂、W63-W5系列棕剛玉微粉等；我廠總部設(shè)在鞏義市擁有完整、科學(xué)的質(zhì)量管理體系，誠信、實(shí)力和產(chǎn)品質(zhì)量獲得業(yè)界的認(rèn)可。歡迎各界朋友蒞臨鞏義市滿堂紅磨料磨具廠參觀、指導(dǎo)和業(yè)務(wù)洽談。
Chinese name: bauxite
English name: bauxitic rock
Definition: a rock rich in aluminium mineral chemistry or biochemistry. Main mineral composition of monohydrate hard and soft LvShi, sanshui LvShi monohydrate. Is mainly composed of aluminum silicate minerals by thermal chemical weathering, out of the dissolution of alumina, moving into the sea and lake basin deposition.
Bauxite (aluminous soil; bauxite) is also called the alumina or bauxite, main ingredients are alumina, hydrated alumina containing impurities, is an earthy mineral. White or gray, brown and yellow or light red by iron. From 4 to 3.9 g/cm3 density, hardness, 1 ~ 3 is not transparent, very brittle. Very difficult to melt. Insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used for aluminium, refractory material.
Bauxite origin distribution:
At present, the known occurrence bauxite country has 49. China is rich in bauxite resources, about 3.7 billion tons, ranked among the top of the world, and guinea, Australia, Brazil, belong to the world"s superpower of bauxite resources. But high production for refractory bauxite only Guyana and China and other countries of the bauxite iron content is high, more than used for smelting aluminium and abrasive materials. Chinese bauxite resources is rich, in the country"s 18 provinces, autonomous regions and municipalities directly under the central government has identified 205 of bauxite origin, including 72 large regions (excluding Taiwan). Mainly distributed in shanxi, shandong, hebei, henan, guizhou, sichuan, guangxi, liaoning, hunan and other places.
Product use:
(1) aluminium industry. Used in national defense, aerospace, automotive, electronics, chemical industry, daily necessities, etc. 2 precision casting. Alumina clinker made after the mould precision casting processed into fine powder. Used in military industry, aerospace, communications, instrumentation, machinery and medical equipment department. (3) is used for refractory products. High bauxite clinker refractoriness is as high as 1780 ℃, chemical stability strong, and good physical properties. (4) aluminum silicate refractory fiber. With light weight, high temperature resistance, good thermal stability, low thermal conductivity, heat capacity is small and the advantages of resistance to mechanical shock. Used in iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, defense and other industries. It is put high alumina clinker in the melting temperature of about 2000 ~ 2200 ℃ high temperature electric furnace, by high temperature melting, high pressure high speed air, cooling or steam injection, became a white ";cotton"; - aluminum silicate refractory fiber. It can be pressed into fiber blanket, board or woven cloth instead of smelting, chemical industry, glass and other industrial furnace lining firebrick. Firefighters used refractory fiber cloth to make clothes. 5] with magnesia and bauxite clinker as raw materials, add the appropriate binder, used for pouring ladle whole ladle lining has particularly good effects. [6] manufacture alumina cement, abrasive materials, ceramic industry and chemical industry can be aluminum of various compounds. Bauxite physical and chemical indicators:
Grade chemical composition / % volume density refractoriness
Al2O3 CaO Fe2O3
Super > 85 < 1790 > 0.6 < 2.0 > 0.6
1 > 80 < 1790 > 0.6 < 3.0 > 0.6
Level 2 b 70-80 < 1790 > 0.8 < 3.0 > 2.65
Level 2 b 60 ~ 70 < 1770 > 0.8 < 3.0 > 0.8
Level 3 50 ~ 60 < 1770 > 0.8 < 2.5 > 2.45
: the difference between bauxite product
Bauxite is usually referred to in the refractory industry refers to after calcination Al2O3 > = 48%, and contain low Fe2O3 bauxite, high bauxite clinker is after calcined bauxite ore. Clinker is pale yellow and dark grey, it is mainly used for high aluminum refractory material that can be used to production of fused corundum. High bauxite clinker is according to the content of AL2O3 and Fe2O3, TiO2, CaO + MgO style, K2O + Na2O and other impurities and clinker indicators such as volume density and bibulous to classification. Lightly calcined bauxite, is also called light burning powder, water purifier polyaluminium chloride is the raw material, the type of bauxite is processed to produce the material, the main ingredient is aluminium oxide, hydrate alumina containing impuriti
AL2O3 : 85% ;
形狀 : 片狀 ;
形態(tài) : 層狀 ;
芯材 : 鋁礬土 ;
撕裂強(qiáng)度 : 2% ;
使用溫度 : 1800度 ;
拉伸強(qiáng)度 : 10.4% ;
抗壓強(qiáng)度 : 98.3% ;
抗彎強(qiáng)度 : 98.5% ;
斷裂伸長率 : 5% ;
低溫彎折≤ : 10% ;
等級 : 一級 ;
導(dǎo)熱系數(shù)（常溫） : 0.03 ;
材質(zhì) : 鋁礬土 ;
產(chǎn)品類別 : 鋁礬土 ;
品牌 : 滿堂紅 ;
產(chǎn)地 : 河南 ;
耐火溫度 : 1770～2000℃（℃） ;

鞏義市滿堂紅磨料磨具廠專業(yè)生產(chǎn)金剛砂、棕剛玉、黑剛玉、白剛玉、碳化硅、拋光砂、除銹砂、鐵砂、玉米芯、核桃殼、石榴石等系列產(chǎn)品，擁有完整、科學(xué)的質(zhì)量管理體系。 鞏義市滿堂紅磨料磨具廠的誠信、實(shí)力和產(chǎn)品質(zhì)量獲得業(yè)界的認(rèn)可。歡迎各界朋友蒞臨參觀、指導(dǎo)和業(yè)務(wù)洽談。 Gongyi mantanghong Abrasives factory specializing in the production of emery, corundum, corundum, white corundum, silicon carbide, polishing sand, rust sand, iron, corn cob, walnut shell, garnet and other products, has a complete, scientific quality management system. Gongyi mantanghong Abrasives Factory integrity, strength and quality of products recognized by the industry. Welcome all friends to visit, guidance and business negotiation. 
加工方式 : 來料加工;來樣加工;
工藝 : 金屬鑄造;磨加工;粉末冶金;電子焊接加工;化學(xué)雕刻;玻璃加工;表面處理;金屬鑄造;
質(zhì)量控制 : 無