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棕剛玉Brown Fused Alumina
棕剛玉是以鋁礬土、無煙煤為主要原料，在2000度以上電弧爐內(nèi)經(jīng)高溫冶煉而成，用它制成的磨具，適于磨削抗張較高（鋼材、可鍛鑄鐵、應(yīng)青銅等）的金屬，適用于制造陶瓷、樹脂高固結(jié)磨具以及研磨、拋光、噴砂、鑄造等，也可制造耐火材料。棕剛玉具有純度高，結(jié)晶好，流動性強(qiáng)，線膨脹系數(shù)低，耐腐蝕、耐高溫、高強(qiáng)度等特點。
Brown fused alumina 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 alumina 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 alumina 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
| 顏色COLOR | 棕色，棕紅色BROWN,RED BROWN |
| 莫氏硬度MOHS HARDNESS | 9.0 |
| 堆積密度BULK DENSITY | 1.75-1.95g/cm3 |
| 比重SPECIFIC GRAVITY | 3.6-3.9g/cm3 |
| 體積密度volume density | 3.6-3.9g/cm3 |
| 熔點melting point | 2250°C |
| 使用溫度maximum service temperature | 1900°C |
二，用途Application
1.用于鋁型材，銅型材玻璃，水洗牛仔服模具等的“”噴砂
environmental blasting for aluminium profile/Copper material of glass/water to wash jeans
2.應(yīng)用于顯像管、玻璃、單晶硅、鏡片、玉器等的自由研磨
Grinding for kinescope/glass/monocrystalline silicon/lens/jadeware
3.可作為修筑高速公路路面、飛機(jī)跑道、碼頭、停車場、工業(yè)地坪、體育場地等耐磨材料
Abrasion-proof material for expressway/airstrip/dock/parking lot/stadium
4.固結(jié)磨具和涂覆（涂附磨具）磨具Bonded abrasives and Coated abrasives
5.表面處理 Surface preparation and finishing
6.熱噴涂/等離子噴涂Thermal Spraying (Plasma Spraying)
7.表面處理 Surface preparation and finishing
8.耐火材料，陶瓷Super Refractories, Ceramics and Tiles
9.拋光和微分子噴砂Lapping & Micro-blasting applications
三、產(chǎn)品型號及用途
1,用于耐火材料，搗雜料，爐料Used for refractory,castable
|
屬性 Properties 規(guī)格Type
| 段砂/sand 0-1，1-3，3-5，5-8mm | 細(xì)粉/Fines 0-100# 0-200# 0-320# | |||
| 保證值 Guarantee Value | 典型值 Typical Value | 保證值 Guarantee Value | 典型值 Typical Value | ||
|
化學(xué)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，噴砂，研磨，拋光Used for abrasives,blasting,grinding
|
屬性properties
規(guī)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# | |||
| 保證值Guarantee Value | 典型值Typical Value | ||
| 化學(xué)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，拋光等 Used for abrasives ,lapping,Polishing
|
屬性properties 規(guī)格 Type | 微粉 Micropowder | |||
| “W”標(biāo) | W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 | |||
| “FEPA”標(biāo) | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 | |||
| “JIS”標(biāo) | 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# | |||
| 保證值Guarantee Value | 典型值Typical Value | |||
| 化學(xué)成分 Chemical Composition | Al2O3 | ≥92 | 93.8 | |
| SiO2 | ≤2 | 1.4 | ||
| Fe2O3 | ≤2 | 1.2 | ||
| TiO2 | ≤4 | 3.2 | ||
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