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Boron carbide polishing powder F320碳化硼研磨粉
Boron carbide polishinig powder F......
Boron carbide powder 碳化硼B4C粉末 F100
Boron carbide powder 碳化硼B4C粉末 F100由硼酸和碳化物经过高温冶炼成块，再破碎分选生产而来。碳化硼硬度高、磨削力适中、比重低、对辐射物质的中子屏蔽能力强。因此不仅可以用于耐磨材料、研磨介质，还是碳化硼耐磨陶瓷、核工业防护材料的主要原材料之一。Boron carbide powder F100 is used for gemstone grinding. Boron carbide grit F280 is produced by high-temperature smelting of boric acid and carbides into blocks, followed by crushing and sorting. Boron carbide has high hardness, moderate grinding force, low specific gravity, and strong neutron shielding ability against radiation substances. Therefore, it can not only be used for wear-resistant materials and grinding media, but also as one of the main raw materials for boron carbide wear-resistant ceramics and nuclear industry protective materials.
碳化硼的性能特点：
- 强度高，抗断裂韧性好。
- 密度低、比重小。
- 耐火性能优异。
- 高温硬度高，耐磨性能好。
- 化学稳定性，可以承受酸碱性物质的侵蚀。
- 导热能力强。
Boron carbide properties
1. High strength and good fracture toughness.
2. Low density and low specific gravity.
3. Excellent fire resistance performance.
4. High temperature hardness and good wear resistance.
5. Chemical stability, able to withstand the erosion of acidic and alkaline substances.
6. Strong thermal conductivity.
碳化硼的主要性能指标：
- 物理技术指标：
| 外观（Appearance） | 黑色颗粒或粉末 Black grain or powder |
| 摩尔质量（Molecular Weight）(g/mol.) | 55.25515 |
| 比热容Specific Heat(cal-mol-c) | 12.5 |
| 弹性模量Elastic modulus | 450-470 Gpa |
| 努普硬度Knoop hardness | 2750 kg/mm2 |
| 莫氏硬度Mohs hardness | 9.3 |
| 显微硬度Micro Hardness | 4950 KGF/mm2 |
| 密度Density | 2.52g/cm |
| 熔点Melting point | 2350℃(2623.15K) |
| 沸点Boiling point | ＞3500℃(＞3773.15K) |
| 电导率conductivity | 140 s/cm |
| 导热系数thermal conductivity | 30 - 42 W/M·K |
| 热中子吸收截面thermal neutron absorption cross section | 600 barn |
| 溶水性Solubility in water | 不溶于水Insoluble |
| 晶体结构Crystal structure | 六面体晶系Rhombohedral |
| CAS 编号（CAS NO.) | 12069-32-8 |
- 化学成分：
| 成分（Chemical） | 保证值Standard Value | 典型值Typical Value |
| 总硼Total Boron (BT) | 75-80 % | 78.18 % |
| 游离硼Free Boron(BF) | ≤0.5 % | 0.1 % |
| 三氧化二硼Boron Oxide（B2O3） | ≤1.0 % | 0.09 % |
| 总碳Total Carbon (CT) | 17-21.5% | 19.71 % |
| 游离碳Free Carbon (CF) | ≤2.0 % | 1.24 % |
| 三氧化二铁Iron Oxide（Fe2O3） | ≤0.5 % | 0.16 % |
| 碳化硼 Boron Carbide（B4C） | 93-97 % | 96.55 % |
| 总硼+总碳 BT+CT | 93-98% | 97.89 % |
碳化硼的型号：
- 粒度砂
| 粒度（Grit Size） | 平均粒径（Mean diameter in um） |
| F8 | 2460 |
| F10 | 2085 |
| F12 | 1765 |
| F14 | 1470 |
| F16 | 1230 |
| F20 | 1040 |
| F22 | 885 |
| F24 | 745 |
| F30 | 625 |
| F36 | 525 |
| F40 | 438 |
| F46 | 370 |
| F54 | 310 |
| F60 | 260 |
| F70 | 218 |
| F80 | 185 |
| F90 | 154 |
| F100 | 129 |
| F120 | 109 |
| F150 | 82 |
| F180 | 69 |
| F220 | 58 |
2.微粉
| 粒度（Grit Size） | 中值粒径（Mean grain size ds50-value in μm） |
| F 230 | 53.0 ± 3 |
| F 240 | 44.5 ± 2 |
| F 280 | 36.5 ± 1.5 |
| F 320 | 29.2 ± 1.5 |
| F 360 | 22.8 ± 1.5 |
| F 400 | 17.3 ± 1 |
| F 500 | 12.8 ± 1 |
| F 600 | 9.3 ± 1 |
| F 800 | 6.5 ± 1 |
| F 1000 | 4.5 ± 0.8 |
| F 1200 | 3.0 ± 0.5 |
| F 1500 | 2.0 ± 0.4 |
| F 2000 | 1.2 ± 0.3 |
细粉：
| 型号 | 粒度分布 |
| 100mesh | +0.15 ≤10% |
| 200mesh | +0.075≤10% |
| 325mesh | +0.045≤10% |
产品用途：
- 蓝宝石晶体、光学晶体、窗口片、宝石等材料的研磨抛光。
- 碳化硅-碳化硼复合耐磨陶瓷。例如陶瓷喷嘴、陶瓷板、陶瓷片等。
- 耐磨抗冲击涂层。
- 核工业的中子吸收屏蔽材料。例如核反应堆浇筑混凝土、中子吸收耐火砖等。
- 医疗设备领域的防辐射建材。例如聚乙烯防辐射板材等。
- 硬质合金粉末添加耐磨材料。
- 焊条的特殊耐磨药芯。
- 摩擦材料例如刹车衬片等。
- 合金、冶金材料耐磨耐冲击添加剂。
Product Usage:
1. Grinding and polishing of sapphire crystals, optical crystals, window panels, gemstones, and other materials.
2.SiC-B4C composite wear-resistant ceramics. For example, ceramic nozzles, ceramic plates, ceramic sheets, armor, etc.
3. Wear resistant and impact resistant coating.
4. Neutron absorption shielding materials for the nuclear industry. For example, pouring concrete for nuclear reactors, neutron absorbing refractory bricks, etc.
5. Radiation resistant building materials in the field of medical equipment such as polyethylene Neutron Shielding.
6. Hard alloy powder with wear-resistant materials added.
7. Special wear-resistant electrode core.
8. Wear resistant materials such as brake pads.
9. Wear resistant and impact resistant additives for alloy powder and metallurgical materials.
碳化硼磨料的包装：
