
碳化硅簡介
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? ? ? ?碳化硅是一種人工合成的碳化物,分子式為SiC;常用的碳化硅磨料有兩種不同的晶體,一種是綠碳化硅,含SiC 97以上,主要用于磨硬質含金工具;另一種是黑碳化硅,有金屬光澤,含SiC 95以上,強度比綠碳化硅大,但硬度較低,主要用于磨鑄鐵和非金屬材料。碳化硅具有化學性能穩定、導熱系數高、熱膨脹系數小、耐磨性能好耐腐蝕、耐高溫、強度大、導熱性能良好、抗沖擊等特性。用碳化硅制成的高級耐火材料,耐熱震、體積小、重量輕而強度高,節能效果好。
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? ? ? ?黑碳化硅是以石英砂,石油焦和 硅石為主要原料,通過電阻爐高溫冶煉而成;其硬度介于剛玉和金剛石之間,機械強度高于剛玉,性脆而鋒利。綠碳化硅是以石油焦和 硅石為主要原料,添加食鹽作為添加劑,通過電阻爐高溫冶煉而成,其硬度介于剛玉和金剛石之間,機械強度高于剛玉。
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碳化硅指標
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<黑
碳
化
硅
粒度范圍
SIC
游離碳C
Fe203
12#-90#
98.5
0.2
0.6
100#-180#
98
0.3
0.8
220#-240#
97
0.3
1.2
綠
碳
化
硅
20#-90#
99
0.2
0.2
80#-100#
98.5
0.25
0.2
220#-240#
97.5
0.25
0.7
W63-W20
97
0.3
0.7
W14-W10
95.5
0.3
0.7
W7-W5
94
0.3
0.7
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碳化硅用途
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? ? ? ?碳化硅主要有四大應用領域即:功能陶瓷、高級耐火材料、磨料及冶金原料。
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? ? ? ?1、磨料磨具方面的用途;主要用于制作砂輪、砂紙、砂帶、油石、磨塊、磨頭、研磨膏及光伏產品中單晶硅、多晶硅和電子行業的壓電晶體等方面的研磨、拋光等。?
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? ? ? ?2、化工用途;可用做煉鋼的脫氧劑和鑄鐵組織的改良劑,可用做制造四氯化硅的原料,是硅樹脂工業的主要原料。碳化硅脫氧劑是一種新型的強復合脫氧劑,取代了傳統的硅粉碳粉進行脫氧,和原工藝相比各項理化性能更加穩定,脫氧效果好,使脫氧時間縮短,節約能源,提高煉鋼效率,提高鋼的質量,降低原輔材料消耗,減少環境污染,**勞動條件,提高電爐的綜合經濟效益都具有重要價值。
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? ? ? ?3、用于耐磨、耐火和耐腐蝕材料;利用碳化硅具有耐腐蝕、耐高溫、強度大、導熱性能良好、抗沖擊等特性,碳化硅一方面可用于各種冶煉爐襯、高溫爐窯構件、碳化硅板、襯板、支撐件、匣缽、碳化硅坩堝等。??
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? ? ? ?4、可用于有色金屬冶煉工業的高溫間接加熱材料,如豎罐蒸餾爐、精餾爐塔盤、鋁電解槽、銅熔化爐內襯、鋅粉爐用弧型板、熱電偶保護管等;用于制作耐磨、耐蝕、耐高溫等高級碳化硅陶瓷材料;還可以制做火箭噴管、燃氣輪機葉片等。此外,碳化硅也是高速公路、航空飛機跑道等的理想材料之一。
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鞏義市椰凈活性炭有限公司
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?????聯?系?人:李蘭
?????電????話:
?????球??? 球:315****978
?????網????址:
?????地????址:鞏義市經濟技術開發區永安路2號
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產品寫真
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廠區實拍
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英文翻譯
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Introduction of silicon carbide
Silicon carbide is a kind of synthetic carbon, molecular formula for SiC. Commonly used silicon carbide abrasive, there are two different crystal is a kind of green silicon carbide, containing SiC by more than 97, mainly used for grinding hard gold tools; Another is the black silicon carbide, metal luster, containing more than 95 SiC, intensity is bigger than the green silicon carbide, but hardness is low, mainly used for grinding of cast iron and non-metallic materials. Silicon carbide has stable chemical performance, high thermal conductivity, thermal expansion coefficient is small, wear-resisting performance is good corrosion resistance, high temperature resistance, strength, good thermal performance, impact resistance and other properties. Made of silicon carbide senior refractories, thermal shock, small volume, light weight and high strength, good energy saving effect.
Black silicon carbide is quartz sand and petroleum coke and the high quality silica as the main raw material, through high temperature electric resistance furnace smelting; Its hardness is between fused alumina and between diamond and mechanical strength higher than that of corundum, sharp and crisp. Green silicon carbide is a petroleum coke and the high quality silica as the main raw material, adding salt as additive, via high temperature electric resistance furnace smelting, its hardness is between fused alumina and diamond, mechanical strength is higher than fused alumina.
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Silicon carbide purpose
Silicon carbide mainly has four major areas of application: senior functional ceramics, refractory, abrasive and metallurgical raw materials.
1, abrasives purposes; Is mainly used for grinding wheel, abrasive paper, abrasive belt, abrasive, grinding, grinding head, grinding paste and monocrystalline silicon, polycrystalline silicon photovoltaic products and electronic industry of piezoelectric crystal aspects such as grinding, polishing, etc.
2, chemical usage; Can be used as the steelmaking deoxidizer and cast iron modifier, can be used as manufacture of silicon tetrachloride raw material, is the main raw material of silicone industry. Silicon carbide deoxidizer is a new kind of compound deoxidizer, replaced the traditional solid silicon powder carbon powder, and compared with the original process of various physical and chemical performance is more stable, deoxidization effect is good, deoxidize shorter time, save energy and improve the efficiency of steel, improve the quality of steel, reduce raw material consumption, reduce environmental pollution, improve working conditions, improve the comprehensive economic benefits of the electric furnace has important value.
3 refractory used for abrasion resistance and corrosion resistant 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.
4, 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 is an ideal material such as highway, aviation airport runway.
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Gongyi city coconut net activated charcoal co LTD
Lian: li LAN
Telephone:
qiuqiu: 315****978
Web site:
Site: no.2 yongan road, gongyicheng economic and technological development zone
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資質材料
?鞏義市椰凈活性炭有限公司
?
?????聯?系?人:李蘭
?????電????話:
?????球??? 球:315****978
?????網????址:
?????地????址:鞏義市經濟技術開發區永安路2號
