HP Graphite Electrode – the Conductive Material in Arc Furnace Smelting

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  • Published date: March 17, 2019
    • Shijiazhuang, Chandigarh, Chandigarh, India [ Ads Views - 4 ]

描述
HP石墨电极 是电弧炉炼钢的导电元件。它由石油焦,针状焦,煤沥青制成,并由一系列严格的生产工艺生产。高电流线穿过炉体内的石墨电极端口。这将在电弧炉中释放电能以加热炉子。

随着EAF炉尺寸变大,对更大直径电极的需求也在增加。直径为500mm或600mm的石墨电极近年来变得越来越流行。

特点
抗氧化治疗长寿。
高纯度,高密度,强化学稳定性。
加工精度高,表面光洁度好。
机械强度高,电阻低。
耐开裂和剥落。
高抗氧化和抗热冲击性。
应用
石墨电极广泛用于合金钢,金属和其他非金属材料等的生产。

直流电弧炉。
交流电弧炉。
埋弧炉。
关于电弧炉冶炼过程的特写图。埋弧炉用
石墨电极石墨电极用于交流电弧炉炼钢。交流电弧炉用
石墨电极石墨电极用于直流电弧炉炼钢。石墨电极用于直流电弧炉
规范
表1:HP石墨电极
直径电阻技术规格
(≤,μ?·m)密度
(≥,g / cm3)弯曲强度
(≥,MPa)弹性模量
(≤,GPa)灰分含量
(≤,%)CTE
( 100°C - 600°C)
(≤,10-6 /°C)电流负载
(A)电流密度
(A / cm2)
英寸mm
8 200 6.5 1.62 10.5 12 0.3 2.4 5500-9000 18-25
9 225 6.5 1.62 10.5 12 0.3 2.4 6500-10000 18-25
10 250 6.5 1.62 10.5 12 0.3 2.4 8000-13000 18-25
12 300 6.5 1.62 10.5 12 0.3 2.4 13000-17400 17-24
14 350 6.5 1.62 10.5 12 0.3 2.4 17400-24000 17 -24
16 400 6.5 1.62 10.5 12 0.3 2.4 21000-31000 16-24
18 450 6.5 1.60 9.8 12 0.3 2.4 25000-40000 15-24
20 500 6.5 1.60 9.8 12 0.3 2.4 30000-48000 15-24
22 550 6.5 1.60 9.8 12 0.3 2.4 37000-57000 15-23
24 600 6.5 1.60 9.8 12 0.3 2.4 44000-67000 15-23
表2:石墨电极尺寸和公差
直径(mm)长度(mm)
公称直径实际直径公称长度公差短长度
(英寸)(mm)(最大)(最小)(粗糙点)
8 200 205 200 197 1600±100 -275
9 225 230 225 222 1600
10 250 256 251 248 1600/1800
12 300 307 302 299 1600/1800
14 350 357 352 349 1600/1800
16 400 409 403 400 1600/1800/2000/2200
18 450 460 454 451 1600/1800/2000/2200
20 500 511 505 502 1800/2000/2200/2400
22 550 562 556 553 1800/2000/2200/2400
24 600 613 607 604 2000/2200/2400
表面质量
电极表面应有少于两个缺陷或孔,最大尺寸见下表。
电极表面不应有横向裂纹。对于纵向裂缝,长度应小于电极周长的5%,宽度应为0.3至1.0mm。
电极表面的黑色区域宽度应小于电极周长的1/10,长度应小于电极的1/3。
规格缺陷尺寸石墨电极公称直径(mm)
300-400 450-600
直径(mm)20-40
(<20 mm应可忽略不计)30-50
(<30 mm应可忽略不计)
深度(mm)5-10
(<5 mm应该可以忽略不计)10-15
(<10 mm应该可以忽略不计)
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