供5-8mm飞机跑道用棕刚玉 棕刚玉磨料

供5-8mm飞机跑道 用 棕刚玉 棕刚玉磨料

棕刚玉简介：

棕刚玉，俗名又称金刚砂，是用矾土、碳素材料、铁屑三种原料在电炉中经过融化还原而制得的棕褐色人造刚玉，故为此名。棕刚玉主要化学成份是AL2O3，其含量在94.5-97，另含有少量的Fe，Si，Ti等。

棕刚玉性能：

物理性能： 晶形 三方晶系 

化学性质：两性与酸反应，在王水中和氢氟酸中稍有腐蚀与碱反应，仅与强碱热溶液稍有反应 氧化还原效果 否 努谱硬度2000 - 2200 Kg/mm2 莫氏硬度9.0颜色  深棕色  煅烧后颜色  深蓝 熔点  2250 C   高使用温度1900 C

棕刚玉主成分是氧化铝，分等级也就用氧化铝含量来区分，棕刚玉氧化铝含量越低也就硬度越低了。韧性好比SiC高，显微硬度1800-2200kg/mm2，体积密度3.85g/cm3，耐高温，耐火度高达1850。

棕刚玉主要用途：

（1）由于有耐高温、耐腐蚀、高强度等性能，故用浇钢滑动水口，冶炼稀贵金属、特种合金、陶瓷、炼铁高炉的内衬（墙和管）；理化器皿、火花塞、耐热抗氧化涂层。

（2）由于有硬度大、耐磨性好、强度高的特点，在化工系统中，用做各种反应器皿和管道，化工泵的部件；做机械零部件、各种模具，如拔丝模、挤铅笔芯模嘴等；做刀具、模具磨料、防弹材料、人体关节、密封模环等。

（3）刚玉保温材料，如刚玉轻质砖、刚玉空心球和纤维制品，广泛应用于各种高温炉窑的炉墙和炉顶，既耐高温又保温。棕刚玉粒度砂是由人工精选棕刚玉块,采用对辊、球磨、巴马克等设备加工而成，粒度由F8-F325.主要用于抛光、研磨、工业磨削等，还可以按客户要求进行水洗、酸洗处理等方法加工，能够满足客户的不同需求。

低碳棕刚玉经过炉前和特殊工艺的再处理，降低棕刚玉中残余碳的含量，使产品在使用中不粉化、不爆裂、韧性大是磨料磨具行业，耐火材料行业 原料。主要用于陶瓷磨具、 磨具、有机磨具、砂带、涂附磨具等，　根据残碳含量分为：煅烧棕刚玉C0.05、低碳棕刚玉C0.10、普通棕刚玉C0.15。

棕刚玉常用规格：

F为固结磨具及喷砂用规格 P为涂附磨具用规格W为微粉，320#即W40

常用规格：磨料磨具F 1#-63# 4#80# 90#150# 180#240# ；段砂  0-1mm，1-3mm，3-5mm 5-8mm，8-12mm 25-0mm 10-0mm 50-0mm  30-0mm；细粉  180#-0， 200#-0 320#-0 

棕刚玉包装方式：

25kg/袋，双层编织袋包装，出口产品也可用吨袋包装，包装可按客户要求进行调整。

棕刚玉价格：

棕刚玉三氧二化铝的含量不同，可分为一级棕刚玉，二级棕刚玉，三级棕刚玉等，精选棕刚玉3000元/吨-4500元/吨，优质棕刚玉2000元/吨-3500元/吨，普通棕刚玉900元/吨-2000元/吨，根据您不同的需求，具体价格可电话咨询。

产品实拍：

Brown fused alumina introduction:

Brown fused alumina, trivial name also called emery, alumina, carbon materials, iron three kinds of raw materials in a furnace melting reduction and system of brown alundum, so this name. Brown fused alumina main chemical composition is AL2O3, and its content in 94.5 97, and the other contains a small amount of Fe, Si, Ti, etc.

Brown fused alumina properties:

Physical properties: crystal shape trigonal system

Chemical properties: gender and acid reaction, in aqua regia and hydrofluoric acid corrosion and slightly in alkali reaction, only and alkali solution heat slightly reaction REDOX effect no knoop spectrum hardness 2000-2200 Kg/best callus induction mohs hardness 9.0 color dark brown after calcination color dark blue melting point 2250 C maximum working temperature 1900 C

Brown fused alumina principal component is alumina, grade also use alumina content to distinguish, brown corundum alumina content lower hardness is lower. Toughness is like SiC high, microhardness 1800-2200 kg/best callus induction, volume density was 3.85 g/cm3, high temperature resistant, refractory degree is as high as 1850 .

Brown fused alumina main use:

(1) with high temperature resistance, corrosion resistance, high strength and other properties, so use water steel slide gate, smelting rare metals, special alloy, ceramics, puddling blast furnace lining (wall and pipe); Physical and chemical vessels, spark plug, heat resisting oxidation coating.

(2) with hardness, good abrasion resistance, high strength characteristics, in the chemical system, used for all kinds of reaction vessel and pipe, chemical pump parts; Mechanical parts, all kinds of mold, such as wire drawing die, crowded pencil refill die mouth, etc.; Do tool, mould abrasive, bulletproof material, human body joints, seal die ring, etc.

(3) corundum thermal insulation material, such as corundum light brick, alumina hollow ball and fibre products, which are widely used in all kinds of high temperature furnaces of the furnace wall and roof, is high temperature resistant and heat preservation. Brown fused alumina particle size sand is by artificial selection brown corundum block, adopts the roll, ball mill, and mark equipment processing and become, particle size by F8 - F325. Mainly used for polishing, grinding, industrial grinding, etc., can also according to customer requirements for water, pickling treatment method processing, can meet the different needs of customers.

Low carbon brown corundum after bath and the special process and processing, reduce brown corundum of residual carbon content, and make product in use not pulverization, don't burst, great toughness is abrasives industry, refractory industry preferred raw materials. Mainly used in ceramic grinding tool, high-grade abrasive, abrasive, abrasive belt, organic coated with abrasive tool, etc., according to the residual carbon content is divided into: calcined brown corundum C or less 0.05, low carbon brown corundum C or less 0.10, ordinary brown corundum C or less 0.15.

Brown fused alumina commonly used specifications:

F for consolidation abrasive and sand with specifications P for coating with grinding tool with specifications W for micro powder, 320 # W40 namely

Commonly used specifications: abrasives F # 1-63 # 4 # - 80 # 90 #, 150 # 180 #, 240 #, Period of sand 0-1 mm, 1-3 mm, 3-5 mm 5-8 mm, eight to 12 mm 25-0 mm 10-0 mm fifty - 0 mm 30-0 mm; Fine powder # 180-0, # 200-0 # 320-0

Brown fused alumina packing:

25 kg/bag, the double woven bag packaging, export products can also be used ton bag packaging, packaging can be adjusted according to customer's requirement.

Brown fused alumina price:

Brown fused alumina three oxygen second change aluminum content is different, can be divided into primary brown corundum, secondary brown corundum, level 3 brown corundum, selected brown corundum 3000 yuan/ton - 4500 yuan/ton, the high quality brown corundum 2000 yuan/ton - 3500 yuan/ton, common brown corundum 900 yuan/ton - 2000 yuan/ton, according to your different needs, and the specific price can be consulting Yang manager *

巩义市满堂红磨料磨具厂

张娜娜

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