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Quenching Industrial Steel Rollers Of Round - Welded Steel Plate
Specifications:
|
Type |
Specification |
Material |
Surface treatment |
|
quenching roller |
Φ210-Φ2000 |
45#steel/40Cr |
knurling+quench+chrome-plating/carbonized wolfram |
Description:
After three years development and research, we achieved success in manufacturing the quenching rolls
by adopting the new technology of bending and welding 45# steel plate. We have been granted state
invention patent for our quenching roll. The quenching rolls have been widely applied in different lines of
Bao Steel, and have also been accepted and sold to Mitsubishi, JFE, SPCO, CHUGAI RO, NSSC and
POSCO, etc. It can well replace the imported forged quenching rolls with the significant cut in the cost.
Welding rod 507 is usually used to weld the steel plate 45#, but welding rod 507 can only guarantee the
strength without hardness guarantee. The hardness can be guaranteed by adopting build-up welding,
but the welding seam is prone to crack easily. We have tackled aforesaid problems by developing the
new welding material. The hardness of the welding seam after the heat treatment can reach the same
hardness level as the base metal with no bore and crack.
Applications:
Cold rolling line: tension roller, deflector roller, steering roller, correction roller, and measurement roller
applied in galvanizing line, color galvanizing line and continuous annealing line
It is also the necessity of producing high-end auto sheet.
Advantages:
1, Material using just 1/10 of the forging parts
2, Cost savings for the company drastically
3, Welding seam without defects, no bore and crack
4, Guaranteed hardness and strength
5, Long serving life 10 times than the non-quenching roll
6, The hardness of the welding seam and original material is the same
