珩大理石水磨片用绿碳化硅微粉4000#中值粒径3.5-4.0um
绿碳化硅微粉W7是大理石水磨片核心精磨/抛光原料，呈墨绿色六方晶体，硬度高、棱角锋利、粒度集中，专用于大理石细磨→精抛工序，兼顾切削力与镜面光泽，不划伤石材表面。
一、理化参数
- 基本粒：7–5 μm（对应2500#）
- SiC纯度：≥98.0%；Fe₂O₃≤0.40%；游离碳≤0.20%
- 莫氏硬度：9.4；比重：3.18 g/cm³；熔点：2250℃
- 粒度分布：无超大粒/超细粒，集中稳定，杜绝划痕
PRODUCT/产品: 绿碳化硅W7/ Green Silicon Carbide 7 micron(M7)
Physical Index/物理参数：
| Hardness: HV/维氏硬度 |
3280-3400kg/mm2 |
| Hardness: Mohs/莫氏硬度 |
9.4-9.5 |
| Specific Gravity/比重 |
3.2 g/cm3 |
| Particle Shape/颗粒形态 |
Fine powder/细小粉末 |
| Color/颜色 |
Green/绿色 |
| Bulk density(LPD)/堆积密度 |
0.78-0.82 g/cm3 |
| Crystal shape/晶型 |
Hexagonal/六方晶型 |
| Melting Point/熔点 |
dissociated at about 2600°C/2600°C游离 |
| Maximum service temperature/使用温度上限 |
1900°C |
| Thermal conductivity/导热系数 |
0.013 cal/cm2.sec (900°C) |
| Thermal expansion coefficient/热膨胀系数 |
7-9 x10-6 /°C (0-1600°C) |
Chemical Composition/化学成分：
| Chemical Item/化学成分 |
Guarantee Value/保证值(%) |
Typical Value/典型值(%) |
| SiC/碳化硅 |
≥98.5% |
99.10 |
| Free Si/游离硅 |
≤0.2 |
0.12 |
| Free C/游离碳 |
≤0.2 |
0.18 |
| Fe2O3/三氧化二铁 |
≤0.15 |
0.09 |
| SiO2/二氧化硅 |
≤0.3 |
0.22 |
Particle size distribution/粒度分布 (By Laser Analyzer LS609/激光粒度分析仪LS609) :
| Size粒径 |
Guarantee Value/保证值 |
Typical Value/典型值 |
| D10(um) |
≥3.5 |
3.896 |
| D50(um) |
6.0-7.3 |
6.573 |
| D90(um) |
≤12 |
10.847 |
Applications/用途：
- Grinding and polishing optical glass, piezoelectric ceramics, quartz glass, and electric wood materials. / 研磨抛光光学玻璃、压电陶瓷、石英玻璃、电木材料。
- Raw materials for stone grinding tools such as diamond clay grinding blocks and precision grinding oilstones. /石材磨具例如菱苦土磨块、精磨油石的原材料。
- Fillers for diamond water grinding discs and resin diamond grinding wheels. /金刚石水磨片、树脂金刚石砂轮的填料。
- Grinding non-ferrous metal alloys and hard alloys. / 研磨有色金属合金、硬质合金。
- Precision polishing, lapping in silicon wafer industry. / 半导体行业硅片研磨。
- Additives to wear resistant, anti-corrosion, and high-temperature resistant coatings such as fluorocarbon coatings and PTFE non-stick coatings. / 耐磨防腐耐高温涂料例如氟碳涂料、特氟龙不沾涂料的耐磨填料。
- Raw material for RBSIC ceramics. / 反应烧结碳化硅陶瓷原料。
- Heat resistant materials and insulation building materials fillers. / 耐热材料、保温建材填料。
Package/包装：20公斤编织袋+吨包 / 20kgs/Bag+1Ton/Jumbo Bag
20公斤编织袋+1吨托盘/ 20kgs/Bag+1Ton/Pallet
接受纸袋等定制包装/Customized Packages such as paper bag are available
