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  Brown Fused Alumina
 
Brown fused Al2O3
【Posted by:佚名】【Source:Brown fused Al2O3】【Published:2017/2/28】

                                    棕刚玉Brown fused Al2O3

 

棕刚玉是以铝矾土、无烟煤为主要原料,在2000度以上电弧炉内经高温冶炼而成,用它制成的磨具,适于磨削抗张较高(钢材、可锻铸铁、应青铜等)的金属,适用于制造陶瓷、树脂高固结磨具以及研磨、抛光、喷砂、精密铸造等,也可制造高级耐火材料。棕刚玉具有纯度高,结晶好,流动性强,线膨胀系数低,耐腐蚀、耐高温、高强度等特点。

Brown fused Al2O3 is made of bauxite, anthracite coal, and smelted in electric-arc furnace of high temperature more than 2000 degrees. Abrasives tools made by Brown fused Al2O3 are suitable for metal with high tensile(like: steel, malleable iron, bronze etc). Suitable for product high consolidation abrasive, and suitable for grinding, polishing, blasting, precision casting etc. brown fused alumina is also used for refractory material. Brown fused Al2O3 with characteristics like: high purity, good crystalline liquidity, low coefficient of linear expansion, corrosion resistance, high temperature, high strength.

 

一,主要物理特性 Main Physical Properties

颜色 COLOR

棕色,棕红色 BROWN,RED BROWN

莫氏硬度 MOHS HARDNESS

                 9.0

堆积密度 BULK DENSITY

             1.75-1.95g/cm3

比重 SPECIFIC GRAVITY

3.6-3.9g/cm3

体积密度 volume density

3.6-3.9g/cm3

熔点 melting point

2250°C

最高使用温度 maximum service temperature

1900°C

 

二,用途 Application

1.用于铝型材,铜型材玻璃,水洗牛仔服精密模具等的环保喷砂

  environmental blasting for aluminium profile/Copper material of glass/water to wash jeans

2.应用于显像管、玻璃、单晶硅、镜片、玉器等的自由研磨

  Grinding for kinescope/glass/monocrystalline silicon/lens/jadeware

3.可作为修筑高速公路路面、飞机跑道、码头、停车场、工业地坪、体育场地等耐磨材料

  Abrasion-proof material for expressway/airstrip/dock/parking lot/stadium

4.固结磨具和涂覆(涂附磨具)磨具 Bonded abrasives and Coated abrasives

5.表面处理  Surface preparation and finishing

6.热喷涂/等离子喷涂Thermal Spraying (Plasma Spraying)

7.表面处理  Surface preparation and finishing

8.高级耐火材料,陶瓷Super Refractories, Ceramics and Tiles

9.抛光和微分子喷砂 Lapping & Micro-blasting applications

    

三、产品型号及用途

 

1,用于耐火材料,捣杂料,炉料 Used for refractory,castable

 

 

 

  属性

   Properties

       规格Type

 

段砂/sand 0-11-33-55-8mm

细粉/Fines  0-100#  0-200#  0-320#

保证值

Guarantee  Value

典型值

Typical Value

保证值

Guarantee Value

典型值

Typical Value

 

化学成分

Chemical

Composition

Al2O3

  ≥94.5

 96.1

 ≥92

 94.1

SiO2

  ≤1.5

 1.16

 ≤2

 1.56

Fe2O3

  ≤0.5

 0.13

 ≤0.55

 0.28

TiO2

  ≤3

 1.78

 ≤3.3

 2.25

 

 

2,用于磨料,喷砂,研磨,抛光Used for abrasives,blasting,grinding

    

 

 

属性 properties

 

      规格Type

              粒度砂Grains

8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60#

70# 80# 90# 100# 120# 150# 180# 220#

保证值 Guarantee Value

典型值Typical Value

 化学成分

 Chemical

Composition

Al2O3

       ≥93

     95.65

SiO2

       ≤2.0

     1.04

Fe2O3

       ≤1.5

     0.14

TiO2

       ≤3.5

     2.2

3,用于磨料,研磨,抛光等  Used for abrasives ,lapping,Polishing

    

 

 属性 properties

     规格  Type

                           微粉  Micropowder

“W”

W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5

“FEPA”

F230 F240 F280 F320 F360 F400 F500

F600 F800 F1000 F1200 F1500

“JIS”

240# 280# 320# 360# 400# 500# 600# 700# 800# 1000#

1200# 1500# 2000# 2500# 3000#

保证值Guarantee Value

     典型值Typical Value

 化学成分

 Chemical

Composition

Al2O3

                ≥92

   93.8

SiO2

                ≤2

   1.4

Fe2O3

                ≤2

   1.2

TiO2

                ≤4

   3.2

 

 

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