Abrasion-resistance casting high-speed steel composite roller and manufacturing method thereof

A composite roll and high-speed steel technology, which is applied in the direction of roll, metal rolling, metal rolling, etc., can solve the problems of poor wear resistance, easy peeling, and poor surface quality of rolled materials, and achieve excellent wear resistance and good durability. The effect of abrasiveness and depth of hardened layer

Active Publication Date: 2014-08-27
枣庄瑞兴机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned high-speed steel rolls generally have low toughness, and are easy to peel off and drop blocks during use, which affects the normal use of the rolling mill. The dimensional accuracy of the rolled material is reduced and other deficiencies

Method used

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  • Abrasion-resistance casting high-speed steel composite roller and manufacturing method thereof
  • Abrasion-resistance casting high-speed steel composite roller and manufacturing method thereof
  • Abrasion-resistance casting high-speed steel composite roller and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0022] The preparation process of the wear-resistant casting high-speed steel composite roll of the present invention is as follows:

[0023] ①Melt the roll body 1 wear-resistant high-speed steel and the roll core 2 high-strength ductile iron in two 1000 kg medium-frequency induction furnaces respectively, and the smelting process of the roll body 1 wear-resistant high-speed steel is: Iron, ferro-tungsten, ferro-molybdenum, ferro-vanadium and ferro-niobium are mixed and heated and melted. When the temperature of molten steel reaches 1571°C, sample analysis is carried out. When the mass fraction of molten steel reaches 1.81%C, 4.63%Cr, 2.19%W, 5.51%Mo, 4.80% When V, 1.77% Nb, 0.65% Si, 0.38% Mn, 0.039% P, 0.031% S, and the balance is Fe and unavoidable impurities, metal aluminum accounting for 0.5% of the molten steel mass fraction in the furnace is added to the molten steel for Deoxidation and alloying, after 6 minutes of heat preservation, the molten steel is released into th...

Embodiment 2

[0027] The wear-resistant casting high-speed steel composite roll of the present invention is composed of a roll body 1 wear-resistant high-speed steel and a roll core 2 high-strength ductile iron through centrifugal casting. The preparation process of the wear-resistant casting high-speed steel composite roll of the present invention is as follows:

[0028] ①Melt the roll body 1 wear-resistant high-speed steel and the roll core 2 high-strength ductile iron in two 1000 kg medium-frequency induction furnaces respectively, and the smelting process of the roll body 1 wear-resistant high-speed steel is: Iron, ferro-tungsten, ferro-molybdenum, ferro-vanadium and ferro-niobium are mixed and heated and melted. When the temperature of molten steel reaches 1588°C, sampling and analysis are carried out. When the mass fraction of molten steel reaches 2.18%C, 5.94%Cr, 1.51%W, 6.45%Mo, 5.47% When V, 1.51% Nb, 0.70% Si, 0.42% Mn, 0.044% P, 0.037% S, and the balance is Fe and unavoidable imp...

Embodiment 3

[0032] The wear-resistant casting high-speed steel composite roll of the present invention is composed of a roll body 1 wear-resistant high-speed steel and a roll core 2 high-strength ductile iron through centrifugal casting. The preparation process of the wear-resistant casting high-speed steel composite roll of the present invention is as follows:

[0033] ①Melt the roll body 1 wear-resistant high-speed steel and the roll core 2 high-strength ductile iron in two 750 kg medium-frequency induction furnaces respectively. Iron, ferro-tungsten, ferro-molybdenum, ferro-vanadium and ferro-niobium are mixed and heated and melted. When the temperature of molten steel reaches 1583°C, sample analysis is carried out. When the mass fraction of molten steel reaches 1.96%C, 5.28%Cr, 1.91%W, 5.94%Mo, 5.07% When V, 1.68% Nb, 0.58% Si, 0.37% Mn, 0.041% P, 0.026% S, and the balance is Fe and unavoidable impurities, metal aluminum accounting for 0.65% of the molten steel mass fraction in the fu...

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Abstract

The invention discloses an abrasion-resistance casting high-speed steel composite roller and a manufacturing method thereof and belongs to the technical field of steel rolling. The abrasion-resistance casting high-speed steel composite roller is formed by roller body abrasion-resistance high-speed steel and roller core high-intensity ball iron in a centrifugal-casting-composite mode. The roller body abrasion-resistance high-speed steel is subjected to processing of nickel-magnesium alloy and multi-element alloy wires. After air-blast quenching and high-temperature tempering, the high-speed steel composite roller has the advantages of being high in hardness, good in hardness evenness, good in roller core toughness and the like, and the high-speed steel composite roller has good using effect on a hot mill.

Description

technical field [0001] The invention discloses a composite roll and a preparation method thereof, in particular to a wear-resistant cast high-speed steel composite roll and a preparation method thereof, and belongs to the technical field of steel rolling. Background technique [0002] The roll is an important consumption tool in steel rolling production. With the development of steel rolling technology, higher requirements are put forward for the performance of the roll, especially the high-temperature wear resistance. In order to improve the high-temperature wear resistance of the roll, the most important way is in the roll. Adding elements to form high-hardness carbides and adding elements to improve the stability of the matrix against tempering, the most common of which are alloying elements such as tungsten, molybdenum, vanadium, and niobium, resulting in the emergence of high-speed steel roll materials. [0003] At present, high-speed steel rolls have been widely used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16B22D13/02B21B27/02
Inventor 徐继亮符寒光
Owner 枣庄瑞兴机械制造有限公司
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