原材料：氧化铝粉（义翔铝业）
以优质氧化铝为原材料，通过固定炉或者倾倒炉经过2000℃高温，经过24小时高温冶炼成白刚玉块。
| 粒度 |
主要化学成分（%） |
| Al2O3 |
Fe2O3 |
Na2O |
| 段砂 |
≥99.5 |
≤0.06 |
≤0.30 |
| 细粉 |
≥98.5 |
≤0.20 |
≤0.40 |
| 粒度砂 |
≥99.5 |
≤0.05 |
≤0.30 |
| 微粉 |
99.2-99.7 |
0.03-0.10 |
0.23-0.32 |
白刚玉的理化性质
| 莫氏硬度 |
9.0 |
| 堆积密度 |
1.75-1.95g/cm3 |
| 真实密度 |
3.95g/cm3 |
| 体积密度 |
3.60 |
| 熔点 |
2250℃ |
| 最高使用温度 |
1900℃ |
白刚玉可分为以下几个类型：
1.白刚玉段砂
2.白刚玉细粉
3.白刚玉粒度砂
4.白刚玉微粉
1.白刚玉段砂型号：
| 白刚玉段砂型号 |
0-0.3mm 0-0.5mm 0.212-0.5mm 0.5-1mm 0-1mm 1-3mm 3-5mm 3-6mm 5-8mm |
| 白刚玉细粉型号 |
325mesh 270mesh 200mesh（200#-0）100mesh（100#-0）48mesh |
| Size |
Unit |
Certified Value |
Typical Value |
8-5mm
|
mm |
+8.00 |
-4.00 |
+9.52 |
+8.00 |
+6.70 |
+5.60 |
+4.75 |
-4.00 |
- |
| % |
5 |
5 |
0 |
0-5 |
35-55 |
75-95 |
90-100 |
0-5 |
|
| 6-3mm |
mm |
+5.60 |
-2.80 |
+8.00 |
+6.70 |
+5.60 |
+4.75 |
+3.35 |
+2.80 |
-2.80 |
| % |
40max |
10max |
0 |
0-5 |
15-35 |
40-65 |
75-95 |
90-100 |
0-10 |
| 5-3mm |
mm |
+4.75 |
-2.80 |
+5.6 |
+4.75 |
+3.35 |
+2.80 |
-2.80 |
|
|
| % |
10max |
10max |
0 |
0-10 |
60-80 |
90-100 |
0-10 |
|
|
| 3-1mm |
mm |
+2.80 |
-1.0 |
+4.75 |
+3.35 |
+2.80 |
+2.00 |
+1.18 |
+1.00 |
-1.00 |
| % |
10max |
10max |
0 |
0-5 |
1-10 |
30-50 |
70-90 |
90-100 |
0-10 |
| 1-0mm |
mm |
+1.00 |
-0.212 |
+1.18 |
+1.00 |
+0.50 |
+0.212 |
-0.212 |
|
|
| % |
5max |
35max |
0 |
0-5 |
30-50 |
65-85 |
0-35 |
|
|
| 1-0.5mm |
mm |
+1.00 |
-0.15 |
+1.18 |
+1.00 |
+0.60 |
+0.30 |
+0.15 |
-0.15 |
|
| % |
5max |
2max |
0 |
0-5 |
55-75 |
90-100 |
98-100 |
0-2 |
|
| 0.5-0.212mm |
mm |
+0.60 |
-0.15 |
+1.00 |
+0.60 |
+0.30 |
+0.15 |
-0.15 |
|
|
| % |
5max |
5max |
0 |
0-5 |
45-65 |
95-100 |
0-5 |
|
|
| 0.5-0mm |
mm |
+0.60 |
-0.053 |
+1.00 |
+0.60 |
+0.30 |
+0.15 |
+0.075 |
-0.053 |
|
| % |
5max |
15max |
0 |
0-5 |
10-32 |
50-70 |
78-93 |
3-15 |
|
| 0.3-0mm |
mm |
|
|
+0.60 |
+0.30 |
+0.15 |
+0.075 |
+0.053 |
-0.053 |
|
| % |
|
|
0 |
2-10 |
50-70 |
70-90 |
- |
5-20 |
|
| 48mesh |
mm |
+0.30 |
-0.053 |
+0.60 |
+0.30 |
+0.15 |
+0.075 |
-0.053 |
|
|
| % |
5max |
40min |
0 |
0-5 |
5-20 |
20-40 |
50-65 |
|
|
| 220mesh |
mm |
+0.30 |
-0.075 |
+0.355 |
+0.30 |
+0.075 |
-0.075 |
|
|
|
| % |
3max |
65min |
0 |
0-3 |
15-25 |
65-85 |
|
|
|
| 270mesh |
mm |
+0.15 |
-0.053 |
+0.30 |
+0.15 |
+0.075 |
-0.053 |
|
|
|
| % |
5max |
65min |
0 |
0-5 |
5-20 |
65-80 |
|
|
|
| 325mesh |
mm |
+0.045 |
- |
+0.075 |
+0.045 |
-0.045 |
|
|
|
|
| % |
5max |
- |
0 |
0-5 |
95-100 |
|
|
|
| 1500mesh |
mm |
-9.25 |
-- |
-9.25 |
|
|
|
|
|
|
| % |
75min |
- |
75-100 |
|
|
|
|
|
|
白刚玉段砂细粉的用途
耐火材料，炉料，浇注料，捣杂料，可塑料，喷补料，压住料，投射料，涂抹料，喷涂料，耐火泥，干式振动料，自流浇注料，涂料，耐火泥浆等
不定型耐火材料 ，定型耐火材料
钢包用耐火材料 ，中性耐火材料，高炉热风炉，炮泥，喷枪，散装料，陶瓷杯
高铝砖，含碳耐材，莫来石砖，粘土砖，组合砖，刚玉砖等
耐火材料，炉料，浇注料，捣杂料，耐火砖等
客户用到的型号实例
生产陶瓷过滤板 （白刚玉325#）
中频炉衬料（白刚玉段砂细粉）
导热材料（电子行业 汽车行业）（白刚玉 325目）
高级涂料（白刚玉325#）
耐高温铸造芯 （白刚玉200#-0）
我需要订购 
