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車胎模具鋼噴砂用金剛砂46#一級(jí)棕剛玉
車胎模具鋼噴砂用金剛砂46#一級(jí)棕剛玉是一種化學(xué)成分為氧化鋁的人工磨料，它的主要原材料是鋁礬土、無煙煤，鐵霄。經(jīng)過高溫電弧爐2000度以上的冶煉，將鋁礬土中的雜質(zhì)清除，留下棕色的氧化鋁結(jié)晶塊。因此，控制棕剛玉中的雜質(zhì)對(duì)棕剛玉的質(zhì)量性能指標(biāo)有直接影響。棕剛玉的冶煉設(shè)備分為固定爐和傾倒?fàn)t，制成的棕剛玉塊中氧化鋁含量也會(huì)根據(jù)在爐內(nèi)不同部位有所不同。通常選用94-95含量的一級(jí)塊料作為制造棕剛玉一級(jí)砂的材料。棕剛玉中氧化鋁的含量越高，其硬度、韌性、磨削力等技術(shù)指標(biāo)越高。
車胎模具鋼噴砂用金剛砂46#一級(jí)棕剛玉有以下特點(diǎn)：
1. 一級(jí)棕剛玉韌性高，硬度和磨削力比天然金剛砂（石榴石）高。
2. 一級(jí)棕剛玉噴砂料噴砂效果好，循環(huán)次數(shù)多。
3. 二級(jí)三級(jí)棕剛玉也可作為天然金剛砂的代替產(chǎn)品。
Brown aluminum oxide blasting media 46 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 46 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
車胎模具鋼噴砂用金剛砂46#一級(jí)棕剛玉技術(shù)參數(shù)
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化學(xué)指標(biāo) |
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Al2O3(%) |
Fe2O3(%) |
SiO2(%) |
TiO2(%) |
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一級(jí) |
93-96 |
0.2-0.5 |
1.0-2.0 |
1.5-4.0 |
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二級(jí) |
75-85 |
1.0-2.0 |
2.0-4.0 |
2.0-5.0 |
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三級(jí) |
55-70 |
3.0-5.0 |
5.0-6.0 |
3.0-6.0 |
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物理指標(biāo) |
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主要礦物 |
Al2O3 |
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硬度 |
莫氏 9.0（一級(jí)砂） |
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熔點(diǎn) |
2200 ℃ |
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使用溫度 |
1850℃ |
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比重 |
3.95g/cm3 |
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堆積密度(LPD): |
1.53-1.99 g/cm3 |
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顏色 |
棕色 |
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晶形 |
三方晶系 |
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用途：
1. 不銹鋼噴砂除銹、霧化處理。
2. 船體噴砂表面處理。
3. 金屬模具、鋼模清理噴砂。
4. 紐扣、金屬工藝品噴砂。
5. 耐磨地坪骨料。
6. 鑄件噴砂。
7. 木質(zhì)產(chǎn)品噴砂處理。
8. 不銹鋼餐具表面清理。
9. 金屬刀具表面處理噴砂。
10. 半導(dǎo)體元件噴砂。
11. PCB線路班拋毛鈍化。
粒度砂型號(hào)
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粒 度 |
最粗粒 |
粗粒 |
基本粒 |
混合粒 |
細(xì)粒 |
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全通過下列篩號(hào) |
不通過篩號(hào) |
重量% 不多于 |
不通過篩號(hào) |
重量% 不少于 |
不通過 篩號(hào) |
重量% 不少于 |
通過下列篩號(hào)重量最多3% |
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10# |
6 |
8 |
20 |
10 |
45 |
10 12 |
70 |
14 |
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12# |
7 |
10 |
20 |
12 |
45 |
12 14 |
70 |
16 |
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14# |
8 |
12 |
20 |
14 |
45 |
14 16 |
70 |
18 |
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16# |
10 |
14 |
20 |
16 |
45 |
16 18 |
70 |
20 |
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20# |
12 |
16 |
20 |
18 |
45 |
18 20 |
70 |
25 |
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22# |
14 |
18 |
20 |
20 |
45 |
20 25 |
65 |
30 |
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24# |
16 |
20 |
25 |
25 |
45 |
25 30 |
65 |
35 |
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30# |
18 |
25 |
25 |
30 |
45 |
30 35 |
65 |
40 |
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36# |
20 |
30 |
25 |
35 |
45 |
35 40 |
65 |
45 |
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40# |
25 |
35 |
30 |
40 |
40 |
40 45 |
65 |
50 |
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46# |
30 |
40 |
30 |
45 |
40 |
45 50 |
65 |
60 |
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54# |
35 |
45 |
30 |
50 |
40 |
50 60 |
65 |
70 |
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60# |
40 |
50 |
30 |
60 |
40 |
60 70 |
65 |
80 |
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70# |
45 |
60 |
25 |
70 |
40 |
70 80 |
65 |
100 |
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80# |
50 |
70 |
25 |
80 |
40 |
80 100 |
65 |
120 |
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90# |
60 |
80 |
20 |
100 |
40 |
100 120 |
65 |
140 |
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100# |
70 |
100 |
20 |
120 |
40 |
120 140 |
65 |
200 |
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120# |
80 |
120 |
20 |
140 |
40 |
140 170 |
65 |
230 |
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150# |
100 |
140 |
15 |
170 200 |
40 |
170 200 230 |
65 |
325 |
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180# |
120 |
170 |
15 |
200 230 |
40 |
200 230 270 |
65 |
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220# |
140 |
200 |
15 |
230 270 |
40 |
230 270 325 |
60 |
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