生產棕剛玉堆積密度1.85g/cm3 硬度8.5優質棕剛玉粉_人造磨料_磨料_五金工具_貨源

生產棕剛玉堆積密度1.85g/cm3 硬度8.5優質棕剛玉粉

棕剛玉簡介：

棕剛玉，俗名又稱金剛砂，是用礬土、碳素材料、鐵屑三種原料在電爐中經過融化還原而制得的棕褐色人造剛玉，故為此名。棕剛玉主要化學成份是 AL2O3，其含量在94.5%-97%，另含有少量的Fe，Si，Ti等。

棕剛玉性能：

物理性能：晶形三方晶系。

努譜硬度： 2000 - 2200 Kg/mm2 ；莫氏硬度 9.0；顏色：深棕色。煅燒後顏色：深藍。熔點：2250 ℃最高使用溫度： 1900 ℃

棕剛玉主成分是氧化鋁，等級用氧化鋁含量來區分，氧化鋁含量越低硬度越低。韌性好比碳化矽高，顯微硬度1800-2200kg/mm2，體積密度≥3.85g/cm3，耐高溫，耐火度高達1850℃。

棕剛玉10

棕剛玉主要用途：

（1）棕剛玉耐高溫、耐腐蝕、強度高，故可冶煉稀貴金屬、特種合金、陶瓷、煉鐵高爐的內襯（墻和管）；理化器皿、火花塞、耐熱抗氧化塗層。

（2）棕剛玉硬度大、耐磨性好，故可做各種反應器皿和管道，化工泵的部件；做機械零部件、各種模具，如拔絲模、擠鉛筆芯模嘴等；做刀具、模具磨料、防彈材料、人體關節、密封模環等。

（3）棕剛玉還是保溫材料，如剛玉輕質磚、剛玉空心球和纖維制品，廣泛應用於各種高溫爐窯的爐墻和爐頂，既耐高溫又保溫。棕剛玉粒度砂是由人工精選棕剛玉塊,采用對輥、球磨、巴馬克等設備加工而成，粒度由F8-F325.主要用於拋光、研磨、工業磨削等，還可以按客戶要求進行水洗、酸洗處理等方法加工，能夠滿足客戶的不同需求。

（4）低碳棕剛玉經過爐前和特殊工藝的再處理，降低棕剛玉中殘餘碳的含量，使產品在使用中不粉化、不爆裂、韌性大是磨料磨具行業，耐火材料行業的首選原料。主要用於陶瓷磨具、高檔磨具、有機磨具、砂帶、塗附磨具等，　

（5）棕剛玉根據殘碳含量分為：煅燒棕剛玉C ≤0.05%、低碳棕剛玉C ≤0.10%、普通棕剛玉C ≤0.15%。

棕剛玉常用規格：

F為固結磨具及噴砂用規格 P為塗附磨具用規格 W為微粉，320#即W40

常用規格：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；細粉 180#-0， 200#-0 320#-0

棕剛玉包裝方式：

25kg/袋，雙層編織袋包裝，出口產品也可用噸袋包裝，包裝可按客戶要求進行調整。

棕剛玉價格：

棕剛玉三氧二化鋁的含量不同，可分為一級棕剛玉，二級棕剛玉，三級棕剛玉等，精選棕剛玉3000元/噸-4500元/噸，優質棕剛玉2000元/噸-3500元/噸，普通棕剛玉900元/噸-2000元/噸，根據您不同的需求，具體價格可電話咨詢。

Brown fused alumina introduction:

Brown fused alumina, local name, also known as carborundum, is made of alumina, carbon materials, scrap iron three kinds of raw materials in electric furnace melting reduction and made of brown alundum, reason for this name. Brown fused alumina is mainly chemical composition is AL2O3, and its content from 94.5% to 94.5%, the other contains a small amount of Fe, Si, Ti, etc.

Brown fused alumina performance:

Physical performance: the crystal shape of trigonal system

Chemical properties: sexual reaction with acid, slightly in aqua regia and hydrofluoric acid corrosion and alkali reaction, heat and strong alkali solution only slightly REDOX reaction effect whether Mr Spectral hardness of 2000-2000 Kg/was 9.0 mohs hardness color dark brown color after calcining deep melting point highest use temperature 2250 C 2250 C

Brown fused alumina principal component is alumina, hierarchical alumina content is used to distinguish, brown fused alumina, alumina content, the lower is the lower the hardness. High toughness as SiC, microhardness, 1800-2200 kg/was, acuity 3.85 g/cm3 volume density, high temperature resistance and refractoriness is as high as 1850 ℃.

Brown fused alumina main use:

(1) with high temperature resistance, corrosion resistance, high strength, such as performance, so use casting steel slide gate, and special alloy smelting rare metals, ceramics, blast furnace lining (wall and pipe); Physical and chemical vessels, spark plugs, heat-resistant oxidation coating.

(2) with the characteristics of high hardness, good wear resistance, high strength, in the chemical industry system, used for all sorts of reaction vessel and pipe, chemical pump parts; To do mechanical parts, all kinds of mold, such as wire drawing die, such as pencil lead mold mouth; Do abrasive tool, mould, bulletproof material, human body joint, seal die ring, etc.

(3) corundum thermal insulation material, such as corundum light brick, alumina hollow ball and fibre products, widely used in various high temperature furnaces of furnace wall and furnace top, high temperature resistant and heat preservation. Brown corundum sand particle size is by the artificial corundum block, using the equipment such as roller, ball mill, the mark and granularity by F8 - F325. Mainly used for polishing, grinding, grinding industry, etc., can also according to customer requirements for water washing, acid pickling treatment methods such as processing, able to meet the different needs of customers.

Low carbon corundum and special process in the run-up to the furnace processing, reduce the residual carbon content in the brown fused alumina, make the product in use not pulverization, not burst, great toughness is abrasives industry, refractory industry of choice for raw materials. Mainly used in ceramic grinding tool, high-grade abrasive, abrasive, abrasive belt, coated with organic grinding tool, etc., according to the residual carbon content is divided into: calcined corundum C 0.05% or less, low carbon corundum C 0.10% or less, the common brown corundum C 0.15% or less.

Brown fused alumina commonly used specifications:

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

Commonly used specifications: abrasives F 1 # - 63 # 4 #, 80 #, 90 #, 150 #, 180 #, 180 #; Period of sand 0 to 1 mm, 1-3 mm, 3-5 mm 5-8 mm, 8-12 mm 25-0 mm 10-30-50 mm 0 0 0 mm mm; Fine powder 180 # 0, 200 # 320 # 0-0

Brown fused alumina packing:

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

Brown fused alumina price:

Corundum three oxygen two aluminum content is different, can be divided into primary corundum, secondary corundum, level 3 corundum, such as the selection of brown fused alumina 3000 yuan/ton to 4500 yuan/ton, high quality corundum 2000 yuan/ton to 3500 yuan/ton, ordinary corundum 900 yuan/ton to 2000 yuan/ton, according to your different requirements, specific price can telephone consultation.

棕剛玉2