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棕色氧化铝金刚砂40#用于铸铁件喷砂
棕色氧化铝金刚砂40#用于铸铁件喷砂是一种化学成分为氧化铝的人工磨料，它的主要原材料是铝矾土、无烟煤，铁霄。经过高温电弧炉2000度以上的冶炼，将铝矾土中的杂质清除，留下棕色的氧化铝结晶块。因此，控制棕刚玉中的杂质对棕刚玉的质量性能指标有直接影响。棕刚玉的冶炼设备分为固定炉和倾倒炉，制成的棕刚玉块中氧化铝含量也会根据在炉内不同部位有所不同。通常选用94-95含量的一级块料作为制造棕刚玉一级砂的材料。棕刚玉中氧化铝的含量越高，其硬度、韧性、磨削力等技术指标越高。
棕色氧化铝金刚砂40#用于铸铁件喷砂有以下特点：
1. 一级棕刚玉韧性高，硬度和磨削力比天然金刚砂（石榴石）高。
2. 一级棕刚玉喷砂料喷砂效果好，循环次数多。
3. 二级三级棕刚玉也可作为天然金刚砂的代替产品。
Brown aluminum oxide blasting media 40 grit
Brown fused alumina grit is a basic abrasive grain for making abrasive tools and abrasive blasting. It is produced from natural bauxite mine by a fusing process. After fusing and melting at about 2000 centigrade, it turns to a kind of artificial brown fused alumina. The main chemical of brown fused alumina is Al2O3. So it also be called brown aluminum oxide.
With different milling technology, there are several types of brown fused alumina. They are available for different applications such as sandblasting, surface treatment,resin bonded abrasives, vitrified bonded abrasives,anti-skid materials,etc. The higher Al2O3 purity, the higher hardness and better grinding performance.
Features of Brown aluminum oxide blasting media 40 grit:
1. High hardness around Mohs 9.0.
2. High toughness which is a little higher than white fused alumina.
3. Good grinding ability.
4. A quality level with high Al2O3 purity and low TiO2 impurity.
5. Low Fe2O3 content with magnetic removal treatment.
Application:
1. Sandblasting on metal,iron,etc.
2. Rust removal before coating.
3. Grinding hardware accessories.
4. Polishing stainless steel knife,etc.
5. Blasting on tools such as machine borad,saws,etc.
6. Grinding plastic parts.
7. Non-slip material for floor.
8. Surface treatment and cleaning.
9. Vitrified abrasives.
10. Blasting media,surface treatment such as dust removal and cleaning.
11. Anti-slip applications like floor, ceramics, auto brake parts
棕色氧化铝金刚砂40#用于铸铁件喷砂磨料技术参数
|
化学指标 |
||||
|
Al2O3(%) |
Fe2O3(%) |
SiO2(%) |
TiO2(%) |
|
|
一级 |
93-96 |
0.2-0.5 |
1.0-2.0 |
1.5-4.0 |
|
二级 |
75-85 |
1.0-2.0 |
2.0-4.0 |
2.0-5.0 |
|
三级 |
55-70 |
3.0-5.0 |
5.0-6.0 |
3.0-6.0 |
|
物理指标 |
||||
|
主要矿物 |
Al2O3 |
|||
|
硬度 |
莫氏 9.0（一级砂） |
|||
|
熔点 |
2200 ℃ |
|||
|
使用温度 |
1850℃ |
|||
|
比重 |
3.95g/cm3 |
|||
|
堆积密度(LPD): |
1.53-1.99 g/cm3 |
|||
|
颜色 |
棕色 |
|||
|
晶形 |
三方晶系 |
|||
用途：
1. 不锈钢喷砂除锈、雾化处理。
2. 船体喷砂表面处理。
3. 金属模具、钢模清理喷砂。
4. 纽扣、金属工艺品喷砂。
5. 耐磨地坪骨料。
6. 铸件喷砂。
7. 木质产品喷砂处理。
8. 不锈钢餐具表面清理。
9. 金属刀具表面处理喷砂。
10. 半导体元件喷砂。
11. PCB线路班抛毛钝化。
粒度砂型号
|
粒 度 |
最粗粒 |
粗粒 |
基本粒 |
混合粒 |
细粒 |
|||
|
全通过下列筛号 |
不通过筛号 |
重量% 不多于 |
不通过筛号 |
重量% 不少于 |
不通过 筛号 |
重量% 不少于 |
通过下列筛号重量最多3% |
|
|
10# |
6 |
8 |
20 |
10 |
45 |
10 12 |
70 |
14 |
|
12# |
7 |
10 |
20 |
12 |
45 |
12 14 |
70 |
16 |
|
14# |
8 |
12 |
20 |
14 |
45 |
14 16 |
70 |
18 |
|
16# |
10 |
14 |
20 |
16 |
45 |
16 18 |
70 |
20 |
|
20# |
12 |
16 |
20 |
18 |
45 |
18 20 |
70 |
25 |
|
22# |
14 |
18 |
20 |
20 |
45 |
20 25 |
65 |
30 |
|
24# |
16 |
20 |
25 |
25 |
45 |
25 30 |
65 |
35 |
|
30# |
18 |
25 |
25 |
30 |
45 |
30 35 |
65 |
40 |
|
36# |
20 |
30 |
25 |
35 |
45 |
35 40 |
65 |
45 |
|
40# |
25 |
35 |
30 |
40 |
40 |
40 45 |
65 |
50 |
|
46# |
30 |
40 |
30 |
45 |
40 |
45 50 |
65 |
60 |
|
54# |
35 |
45 |
30 |
50 |
40 |
50 60 |
65 |
70 |
|
60# |
40 |
50 |
30 |
60 |
40 |
60 70 |
65 |
80 |
|
70# |
45 |
60 |
25 |
70 |
40 |
70 80 |
65 |
100 |
|
80# |
50 |
70 |
25 |
80 |
40 |
80 100 |
65 |
120 |
|
90# |
60 |
80 |
20 |
100 |
40 |
100 120 |
65 |
140 |
|
100# |
70 |
100 |
20 |
120 |
40 |
120 140 |
65 |
200 |
|
120# |
80 |
120 |
20 |
140 |
40 |
140 170 |
65 |
230 |
|
150# |
100 |
140 |
15 |
170 200 |
40 |
170 200 230 |
65 |
325 |
|
180# |
120 |
170 |
15 |
200 230 |
40 |
200 230 270 |
65 |
|
|
220# |
140 |
200 |
15 |
230 270 |
40 |
230 270 325 |
60 |
|
