To get the best perfect function of magnetic rod in the solid H.F. welding of longitudinally welded pipe, it is very important to select the right ferrite rod and make a suitable installation.
Keywords: welded pipe welding HF electromagnetic induction impedence magnetic material;
Below is the data for your refer:
ROUND SIZES |
|
|
|
S.No |
|
INCH-NB |
OD-mm |
Thickness-mm |
Ferrite Size |
1 |
|
1/2" |
12.7 |
0.80-2.00 |
12*140 |
2 |
|
3/4" |
27.2 |
0.80-2.40 |
16*140 |
3 |
|
11/4" |
42.2 |
1.20-2.80 |
28*140 |
4 |
|
11/2" |
48.2 |
1.40-3.20 |
40*150 |
5 |
|
2" |
60.3 |
1.60-3.50 |
45*150 |
|
|
|
|
|
|
S.No |
SIZE-OD |
INCH-NB |
OD-mm |
Thickness-mm |
Ferrite Size |
1 |
25 |
1" |
25.4 |
0.80-2.00 |
16*140 |
2 |
32 |
11/4" |
31.8 |
1.00-2.40 |
20*140 |
3 |
38 |
11/2" |
38.1 |
1.20-2.60 |
28*140 |
4 |
50 |
2" |
50.8 |
1.20-2.80 |
40*150 |
5 |
63 |
21/2" |
63.5 |
1.60-3.20 |
50*150 |
|
|
|
|
|
|
SECTION-SQUARE |
S.No |
SIZE-OD |
INCH-NB |
OD-mm |
Thickness-mm |
Ferrite Size |
1 |
20*20 |
1"OD |
25.4 |
0.80-1.60 |
18*140 |
2 |
25*25 |
11/4"OD |
31.8 |
0.80-1.60 |
22*140 |
3 |
30*30 |
11/2"OD |
38.1 |
0.80-2.00 |
28*140 |
4 |
38*38 |
11/2"NB |
48.2 |
1.00-2.00 |
40*150 |
5 |
40*40 |
2"OD |
50.8 |
1.20-2.00 |
40*150 |
6 |
50*50 |
21/2"OD |
63.5 |
1.20-2.00 |
50*150 |
|
|
|
|
|
|
SECTION-RECTANGULAR |
S.No |
SIZE-OD |
INCH-NB |
OD-mm |
Thickness-mm |
Ferrite Size |
1 |
25*15 |
1"OD |
25.4 |
0.80-1.60 |
18*140 |
2 |
30*20 |
11/4"OD |
31.8 |
0.80-1.60 |
22*140 |
3 |
40*20 |
11/2"OD |
38.1 |
0.80-2.00 |
28*140 |
4 |
50*25 |
11/2"NB |
48.2 |
1.00-2.00 |
40*150 |
5 |
60*30 |
21/4"OD |
57.15 |
1.20-2.00 |
50*150 |
6 |
60*40 |
21/2"OD |
63.5 |
1.20-2.00 |
55*150 |
|