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High-wear-resistance alloy tool steel roll and manufacturing method thereof

An alloy tool steel and a manufacturing method technology, applied in the field of rolls and their manufacturing, can solve the problems of insufficient new material guarantee capability, outdated rolling mill equipment, restricted production efficiency, etc., and achieve excellent wear resistance, good surface quality, and reduced growth rate. Effect

Active Publication Date: 2017-01-25
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, some manufacturers have outdated rolling mill equipment, poor cooling conditions, and no lubricating devices. They are not able to guarantee the use of new materials, so they have to continue to use traditional low-end materials, and their production efficiency is greatly restricted.

Method used

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  • High-wear-resistance alloy tool steel roll and manufacturing method thereof
  • High-wear-resistance alloy tool steel roll and manufacturing method thereof
  • High-wear-resistance alloy tool steel roll and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A high wear-resistant alloy tool steel roll, the alloy components and weight percentages of the working layer are C1.60%, Si 0.75%, Mn 0.85%, P≤0.05%; S≤0.05%, Cr 13.5%, Ni 1.85%, Mo 1.2%, V 1.5%, the rest is Fe and unavoidable impurities.

[0038] The composition and weight percentage of each alloy in the roll core are C 3.35%, Si 2.2%, Mn 0.65%, P ≤ 0.2%, S ≤ 0.1%, and the rest are Fe and unavoidable impurities.

[0039] The manufacturing method of the roll is:

[0040]It is produced by horizontal centrifugal casting. Firstly, a 5t intermediate frequency induction furnace is used to smelt the working layer molten steel at a smelting temperature of 1550°C. An 8t intermediate frequency induction furnace is used to smelt the core molten iron at a melting temperature of 1480°C. When the two components of molten steel or molten iron meet the requirements , first raise the temperature of molten steel in the working layer to 1600°C and then release it from the furnace, carr...

Embodiment 2～ Embodiment 8

[0045] The casting method of the wear-resistant alloy tool steel roll in each of Examples 2 to 8 is the same as that of Example 1. See Table 1 and Table 2 for the composition content, heat treatment method, and performance of each example.

[0046] Table 1

[0047]

[0048]

[0049] Table 2

[0050]

[0051]

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Abstract

The invention discloses a high-wear-resistance alloy tool steel roll and a manufacturing method thereof, applied to the finish rolling front segment of a hot strip continuous mill and a medium width and thickness plate mill; a working layer is made from, by weight, 1.50-2.00% of C, 0.30-1.00% of Si, 0.50-1.20% of Mn, < / =0.10% of P, < / =0.05% of S, 10.0-15.0% of Cr, 0.50-2.00% of Ni, 0.20-1.50% of Mo, 0.20-2.00% of V, and the balance of Fe and unavoidable impurities; the high-wear-resistance alloy tool steel roll is made by means of centrifugal composite casting technique, quenching thermal treatment process of spray cooling at 1020-1100 DEG C for 40-80 min, and three-stage tempering at 450-550 DEG C for 10-20 h, and is a high-wear-resistance roll with low oxide film growth rate and excellent hot cracking resistance.

Description

technical field [0001] The invention relates to a roll and a manufacturing method thereof, in particular to a high wear-resistant work roll suitable for the front section of finishing rolling of a hot-strip continuous rolling mill and a medium-width and thick-plate rolling mill and a manufacturing method thereof. Background technique [0002] With the rapid development of modern rolling technology, the requirements for plate surface quality, dimensional accuracy, and plate surface flatness are getting higher and higher, and rolls are important spare parts for rolling steel, and their materials have also undergone upgrading. For example, many manufacturers at home and abroad have upgraded the improved high-chromium iron work rolls in the front section of finishing rolling to high-speed steel rolls, which solved the problems of insufficient wear resistance, fast growth of oxide film and easy shedding of high-chromium iron rolls. The work rolls of some medium and heavy plate mi...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/46C22C38/56C22C37/04B22D13/02B22D19/16C21D1/18C21D9/38C21D1/06
CPCB22D13/02B22D19/16C21D1/06C21D1/18C21D9/38C22C37/04C22C38/02C22C38/04C22C38/44C22C38/46C22C38/56
Inventor 刘娣杜旭景朱志磊韩建宁
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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