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Special steel for rolling roller blank and preparation method thereof

A roll and billet rolling technology, applied in the field of metallurgy, can solve problems such as poor material hardness, and achieve the effects of uniform and qualified annealing structure, low annealing temperature, and good heat treatment effect.

Inactive Publication Date: 2020-09-11
HEYE SPECIAL STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rolls used in the rolling mill are processed from roll blanks. The quality of the rolls is closely related to the roll blanks. However, most of the current roll blanks have the disadvantage of poor material hardness.

Method used

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  • Special steel for rolling roller blank and preparation method thereof
  • Special steel for rolling roller blank and preparation method thereof
  • Special steel for rolling roller blank and preparation method thereof

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] This embodiment relates to a special steel for rolling roll blanks. The special steel includes the following components in terms of mass percentage: C: 1.5%-1.60%, Si: 0.1-0.5%, Mn: 0.6%-0.7% , Cr: 12.0%-13.5%, Mo: 0.5-1.5%, W: ≤0.2%, V: 1.0-1.3%, S: 0.01-0.05%, N: 0.01%-0.05%, O: ≤0.005%, RE: 0.105-0.15%, the balance is iron and impurities.

[0035] Wherein, the above-mentioned component RE specifically includes the following elements in terms of mass percentage: lanthanum element: 40%, cerium element: 35%, rare earth magnesium alloy element: 25%. The rare earth magnesium alloy element is yttrium-based rare earth magnesium alloy.

[0036] During specific preparation, the compo...

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Abstract

The invention provides special steel for rolling a roller blank. The special steel comprises the following components by mass: C: 1.5%-1.60%, Si: 0.1-0.5%, Mn: 0.6%-0.7%, Cr: 12.0%-13.5%, Mo: 0.5-1.5%, W: <=0.2%, V: 1.0-1.3%, S: 0.01-0.05%, N: 0.01%-0.05%, O: <= 0.005%, RE: 0.105-0.15%, and the balance iron and impurities. The invention also relates to a preparation method of the special steel forrolling the roller blank. The special steel for rolling the roller blank is composed of the components, so that the structural performance of the roller blank material can be improved by combining the elements, and a prepared roller has better hardness.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a special steel for rolling roll blanks, and at the same time, the invention also relates to a preparation method of the special steel for rolling roll blanks. Background technique [0002] The roll is the main working part and tool for continuous plastic deformation of the metal on the rolling mill. The roll is mainly composed of three parts: the roll body, the roll neck and the shaft head. The roll body is the middle part of the roll that actually participates in the rolling of the metal. It has a smooth cylindrical shape. Shaped or grooved surfaces. The roll neck is installed in the bearing, and the rolling force is transmitted to the frame through the bearing seat and the pressing device. The shaft head of the transmission end is connected with the gear seat through the connecting shaft, and the rotational torque of the motor is transmitted to the roll. The rolls can be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/22C22C38/24C22C38/60C21D8/00C21D1/26C21C7/06C21C7/00B21J5/00B21B37/74B21B37/00
CPCB21B37/00B21B37/74B21J5/002C21C7/0056C21C7/06C21D1/26C21D8/005C22C38/001C22C38/002C22C38/005C22C38/02C22C38/04C22C38/22C22C38/24C22C38/60
Inventor 邱桂娟尤晓东梁敬斌王然张国涛高二庆张巍
Owner HEYE SPECIAL STEEL
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