碳化硅简介
化学式：SiC
英文名称：Silicon Carbide
碳化硅：又名碳硅石、金钢砂或耐火砂
碳化硅为六方晶体，是用石英砂、石油焦（或煤焦）、木屑为原料通过电阻炉高温冶炼而成的一种耐火材料，生产绿色碳化硅时需要加食盐高温冶炼而成。比重为3.20～3.25，显微硬度为2840～3320kg/mm2。碳化硅具有耐腐蚀、耐高温、强度大、化学性能稳定、导热系数高、热膨胀系数小、耐磨性能好，抗冲击等特性。
金林刚玉碳化硅粉末涂覆于水轮机叶轮或汽缸体的内壁，可提高其耐磨性而延长使用寿命1～2倍；用以制成的高级耐火材料，耐热震、体积小、重量轻而强度高，节能效果好。低品级碳化硅（含SiC约85%）是极好的脱氧剂，用它可加快炼钢速度，并便于控制化学成分，提高钢的质量。此外，碳化硅还大量用于制作电热元件硅碳棒。碳化硅的硬度很大,莫氏硬度为9.5级，仅次于世界上最硬的金刚石（10级），具有优良的导热性能，是一种半导体，高温时能抗氧化。
碳化硅分类
金林碳化硅有黑碳化硅和绿碳化硅两个常用的基该品种，都属α-SiC。
1、黑碳化硅含SiC约95%，其韧性高于绿碳化硅，大多用于加工抗张强度低的材料，如玻璃、陶瓷、石材、耐火材料、铸铁和有色金属等。
2、绿碳化硅含SiC约97%以上，自锐性好，大多用于加工硬质合金、钛合金和光学玻璃，也用于珩磨汽缸套和精磨高速钢刀具。
3、还有立方碳化硅，它是以特殊工艺制取的黄绿色晶体，用以制作的磨具适于轴承的超精加工，可使表面粗糙度从Ra32～0.16微米一次加工到Ra0.04～0.02微米。
碳化硅指标
项目 | 碳化硅含量 | 铁含量 | 炭含量 | 密度 |
Project | SiC(%) | Fe2O3(%) | F.C(%) | proportion |
Ⅰ | ≥97% | ≤1.2% | ≤0.3% | 3.2g/cm3 |
Ⅱ | ≥90% | ≤1.5% | ≤0.5% | 3.1g/cm3 |
Ⅲ | ≥88% | ≤1.7% | ≤0.8% | 3.1g/cm3 |
碳化硅用途
石嘴山市金林刚玉耐火材料有限公司长期生产碳化硅产品；碳化硅主要有四大应用领域，即：功能陶瓷、高级耐火材料、磨料及冶金原料。碳化硅粗料已能大量供应，不能算高新技术产品，而技术含量极高的纳米级碳化硅粉体的应用短时间不可能形成规模经济。
1、磨料磨具；主要用于制作砂轮、砂纸、砂带、油石、磨块、磨头、研磨膏及光伏产品中单晶硅、多晶硅和电子行业的压电晶体等方面的研磨、抛光等。
2、耐火材料；以碳化硅为主要成分的耐火材料，密度3.1~3.2g/cm3，杨氏模量390~440GPa，热膨胀系数(3.7~4.8)×10-6C 1，导热系数0.6~2.7W·cm-1℃-1，采用热压烧结法制取，用作窑具、高炉炉衬、有色金属冶炼坩埚、耐磨内衬等。
利用碳化硅具有耐腐蚀、耐高温、强度大、导热性能良好、抗冲击等特性，碳化硅一方面可用于各种冶炼炉衬、高温炉窑构件、碳化硅板、衬板、支撑件、匣钵、碳化硅坩埚等。另一方面可用于有色金属冶炼工业的高温间接加热材料，如竖罐蒸馏炉、精馏炉塔盘、铝电解槽、铜熔化炉内衬、锌粉炉用弧型板、热电偶保护管等；用于制作耐磨、耐蚀、耐高温等高级碳化硅陶瓷材料；还可以制做火箭喷管、燃气轮机叶片等。此外，碳化硅也是高速公路、航空飞机跑道太阳能热水器等的理想材料之一。利用碳化硅具有耐腐蚀、耐高温、强度大、导热性能良好、抗冲击等特性，碳化硅一方面可用于各种冶炼炉衬、高温炉窑构件、碳化硅板、衬板、支撑件、匣钵、碳化硅坩埚等。
3、冶金原料；碳化硅硬度仅次于金刚石，具有较强的耐磨性能，是耐磨管道、叶轮、泵室、旋流器、矿斗内衬的理想材料，其耐磨性能是铸铁.橡胶使用寿命的5--20倍&def也是航空飞行跑道的理想材料之一。
4、功能陶瓷；利用碳化硅导热系数、热辐射、高热强度大的特性，制造薄板窑具，不仅能减少窑具容量，还提高了窑炉的装容量和产品质量，缩短了生产周期，是陶瓷釉面烘烤烧结理想的间接材料。
联系方式
石嘴山市金林刚玉耐火材料有限公司
销售经理：李晴
联系电话：18295027880
QQ邮箱：2105787223@qq.com
公司主页：https://shop1403801633028.1688.com
地址：宁夏回族自治区石嘴山市平罗县崇岗煤炭市场
英文翻译
Introduction of silicon carbide
Chemical formula: SiC
English name: Silicon Carbide
Silicon carbide: also known as carbon silica sand, corundum or refractory
Silicon carbide as six-party crystals, is made of quartz sand and petroleum coke or coal tar, wood chips as raw material through high temperature electric resistance furnace smelting and become a kind of refractory material, the production need to add salt when green silicon carbide smelting high temperature and be become. Specific gravity is 3.20 ~ 3.20, the microhardness was 2840 ~ 3320 kg/was. Silicon carbide with corrosion resistant, high temperature resistance, strength, stable chemical properties, high thermal conductivity, small thermal expansion coefficient, good wear resistance, impact resistance and other properties.
Jin Lin silicon carbide powder coated in turbine impeller or cylinder wall, can improve the wear resistance and prolong the service life of the 1 ~ 2 times; To made of high-grade refractory materials, thermal shock, small volume, light weight and high strength, good energy saving effect. About 85% low grade silicon carbide (SiC) is an excellent deoxidizer, use it can speed up steel making, and facilitate the control of chemical composition, improve the quality of steel. In addition, silicon carbide also used to produce large amounts of electric heating element silicon carbon rod. Silicon carbide hardness is very big, mohs hardness of 9.5, second only to the world's most hard diamond (10), good thermal conductivity, is a kind of semiconductor, can oxidation resistance at high temperature.
Classification of silicon carbide
Jin Lin green silicon carbide black silicon carbide and silicon carbide two commonly used the base of the varieties, are alpha SiC.
1. The black silicon carbide containing SiC by about 95%, the toughness higher than that of green silicon carbide, mostly used for processing low tensile strength of material, such as glass, ceramics, stone, refractory material, cast iron and nonferrous metal, etc.
2. Green silicon carbide containing SiC is about more than 97%, good self-sharpening, mostly used for processing hard alloy, titanium alloy and optical glass, also used for honing cylinder jacket and fine grinding HSS cutting tools.
3. There are cubic silicon carbide, it is a special process for making yellow crystals, to make the abrasive tool suitable for bearing the superfinishing, can make the surface roughness from a processing Ra32 ~ 0.16 microns to Ra0.04 ~ 0.02 microns.
Silicon carbide purpose
Using silicon carbide has corrosion resistance, high temperature resistance, strength, good thermal conductivity and impact resistance and other properties, silicon carbide on the one hand, can be used for all kinds of smelting furnace lining, high temperature furnaces artifacts, silicon carbide plate, plate, supports, sagger, silicon carbide crucible, etc. On the other hand can be used in non-ferrous metal smelting industry of high-temperature indirect heating, such as vertical distillation furnace, furnace distillation tray, aluminium electrolyzer, copper melting furnace lining, furnace zinc powder with arc plate, the thermocouple protection tube, etc.; Used to produce wear-resisting, corrosion resistant, high temperature resistance and other advanced silicon carbide ceramic materials; Can also make the rocket nozzle, gas turbine blades, etc. In addition, silicon carbide and highway, aviation airport runway solar water heater, etc. One of the ideal material. Using silicon carbide has corrosion resistance, high temperature resistance, strength, good thermal conductivity and impact resistance and other properties, silicon carbide on the one hand, can be used for all kinds of smelting furnace lining, high temperature furnaces artifacts, silicon carbide plate, plate, supports, sagger, silicon carbide crucible, etc.
contact
Shizuishan Jin Lin corundum refractories co., LTD
Sales manager: li ching
Contact phone number: 18295027880
QQ email: 2105787223 @qq.com
Website: https://shop1403801633028.1688.com
Address: takashi shizuishan pingluo county of ningxia hui autonomous region gang coal market
产品写真
厂区实拍
联系方式
石嘴山市金林刚玉耐火材料有限公司
销售经理：李晴
联系电话：18295027880
QQ邮箱：2105787223@qq.com
公司主页：https://shop1403801633028.1688.com
地址：宁夏回族自治区石嘴山市平罗县崇岗煤炭市场