石墨电极尺寸标准要求
根据IEC60239标准要求整理如下：
1 电极公称直径及公称长度
|
公称直径mm |
实际直径范围mm |
公称长度mm |
|
|
最大值 |
最小值 |
||
|
150 |
154 |
149 |
1200/1500/1800 |
|
200 |
205 |
200 |
1200/1500/1800 |
|
250 |
256 |
251 |
1500/1800/2100 |
|
300 |
307 |
303 |
1500/1800/2100 |
|
350 |
358 |
354 |
1800/2100/2400 |
|
400 |
409 |
405 |
1800/2100/2400 |
|
450 |
460 |
456 |
1800/2100/2400/2700 |
|
500 |
511 |
507 |
1800/2100/2400/2700 |
|
550 |
562 |
558 |
2100/2400/2700 |
|
600 |
613 |
609 |
2100/2400/2700 |
|
650 |
663 |
659 |
2100/2400/2700 |
|
700 |
714 |
710 |
2100/2400/2700 |
|
750 |
765 |
761 |
2400/2700 |
2 电极长度允许偏差
|
公称长度mm |
标准长度偏差mm |
短尺品长度偏差mm |
||
|
最大值 |
最小值 |
最大值 |
最小值 |
|
|
1200 |
1250 |
1100 |
1100 |
975 |
|
1500 |
1600 |
1400 |
1400 |
1225 |
|
1800 |
1900 |
1700 |
1700 |
1525 |
|
2100 |
2225 |
1975 |
1975 |
1825 |
|
2400 |
2525 |
2275 |
2275 |
2125 |
|
2700 |
2900 |
2550 |
2550 |
2400 |
3 电极孔与接头的形状、尺寸（4扣）
|
电极公称直径 |
接头型号 |
电极孔螺纹中径 |
接头螺纹大径 |
接头长度 |
电极孔深度 |
电极孔螺纹长度 |
|
|
d4 |
d1 |
l1 |
l2 |
l3 |
|||
|
mm |
mm |
||||||
|
150 |
92T4N |
88.92 |
92.08 |
139.7 |
75.9 |
71.9 |
|
|
200 |
122T4N |
119.08 |
122.24 |
177.8 |
94.9 |
90.9 |
|
|
250 |
152T4N |
149.24 |
152.40 |
190.5 |
101.3 |
97.3 |
|
|
300 |
177T4N |
177.64 |
177.80 |
215.90 |
114.00 |
110.00 |
|
|
350 |
203T4N |
200.04 |
203.20 |
254.00 |
133.00 |
129.00 |
|
|
203T4L |
200.04 |
203.20 |
304.80 |
158.40 |
154.40 |
||
|
400 |
222T4N |
219.09 |
222.25 |
304.80 |
158.40 |
154.40 |
|
|
222T4L |
219.09 |
222.25 |
355.60 |
183.80 |
179.80 |
||
|
450 |
241T4N |
238.14 |
241.30 |
304.80 |
158.40 |
230.60 |
|
|
241T4L |
238.14 |
241.30 |
355.60 |
183.80 |
179.80 |
||
|
500 |
269T4N |
266.72 |
269.88 |
355.60 |
183.80 |
179.80 |
|
|
269T4L |
266.72 |
269.88 |
457.20 |
234.60 |
230.60 |
||
|
550 |
298T4N |
295.29 |
298.45 |
355.60 |
183.80 |
179.80 |
|
|
298T4L |
295.29 |
298.45 |
457.20 |
234.60 |
230.60 |
||
|
600 |
317T4N |
314.34 |
317.50 |
355.60 |
183.80 |
179.80 |
|
|
317T4L |
314.34 |
317.50 |
457.20 |
234.60 |
230.60 |
||
|
650 |
355T4N |
352.44 |
355.60 |
457.20 |
234.60 |
230.60 |
|
|
355T4L |
352.44 |
355.60 |
558.80 |
285.40 |
281.40 |
||
|
700 |
374T4N |
371.49 |
374.65 |
457.20 |
234.60 |
230.60 |
|
|
374T4L |
371.49 |
374.65 |
558.80 |
285.40 |
281.40 |
||
|
750 |
406T4Na |
403.24 |
406.40 |
609.60 |
310.80 |
306.80 |
|
|
1、接头的螺纹中径（d2）等于电极孔的螺纹中径（d4）； 2、电极孔的螺纹小径（d3）等于电极孔螺纹中径（d4）减去3.16mm |
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