Tungsten Carbide rolls are used in the manufacture of mill rolls for extended life in applications where long rolling campaigns are required. Their extreme hardness makes them suitable for wire rods, finishing blocks and some shaping applications.
The cemented carbide rolls are divided into the conventional WC-Co alloys and the corrosion-resistant alloys with a mixed binder Co-Ni-Cr. The binder contents vary according to the specific requirements of the rolling mill. We also offer composite roll rings that are a combination of cemented carbide and steel. Unlike the relatively brittle cemented carbide rings, these composite rings open up a wide range of applications. These roll rings can be shrunk on the shaft without any clearance between the shaft and the ring, leading to increased stiffness of the roll shaft and higher rigidity of the system. For the
The cemented carbide rolls are divided into the conventional WC-Co alloys and the corrosion-resistant alloys with a mixed binder Co-Ni-Cr. The binder contents vary according to the specific requirements of the rolling mill. We also offer composite roll rings that are a combination of cemented carbide and steel. Unlike the relatively brittle cemented carbide rings, these composite rings open up a wide range of applications. These roll rings can be shrunk on the shaft without any clearance between the shaft and the ring, leading to increased stiffness of the roll shaft and higher rigidity of the system. For the transmission of higher torques, keyways can be machined in the faces or the inner diameter of these roll rings. These rings are used in the intermediate stands and blocks with a 3-ring layout as well as stretch-reducing tube mills.
transmission of higher torques, keyways can be machined in the faces or the inner diameter of these roll rings. These rings are used in the intermediate stands and blocks with a 3-ring layout as well as stretch-reducing tube mills.
| Grade | WC | Co | Co Ni Cr | Density g/cm³ |
|---|---|---|---|---|
|
VG 07 |
93,0 |
7,0 |
/ |
14,8 |
|
VG 30 |
90,5 |
9,5 |
/ |
14,6 |
|
VG 50 |
86,5
|
13,5
|
/ |
14,2
|
|
VG 53
|
83,0
|
17,0
|
/ |
13,8
|
|
VG 56
|
77,5
|
22,5
|
/ |
13,1
|
|
VG 61
|
75,0
|
25,0
|
/ |
12,7
|
|
VG 62
|
70,0
|
30,0
|
/ |
13,9
|
|
VG 40
|
84,2
|
/ |
15,8
|
13,6
|
|
VG 45
|
81,0
|
/ |
19,0
|
13,6
|
|
VG 50
|
80,0
|
/ |
20,0
|
13,5
|
|
VG 70
|
75,0
|
/ |
25,0
|
13,1
|
|
VG 76
|
70,0
|
/ |
30,0
|
12,7
|
|
VG 77
|
70,0
|
/ |
30,0
|
12,7
|
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