Alloy for producing cold rolled working roll and method for producing same

A technology for cold-rolled work rolls and alloys, which is applied in the field of alloys for manufacturing high-hardness cold-rolled work rolls, can solve the problems of increasing the consumption of rolls, affecting the quality of strip steel, product qualification rate, and increasing costs, and achieves increased tempering stability. The effect of improving tempering stability and prolonging service life

Active Publication Date: 2006-10-04
BAOSTEEL ROLL SCI & TECH
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the steel plate is rolled, the "roll mark" defect will be transmitted to the steel plate, affecting the qualit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] (Embodiment 1, Alloy used for manufacturing cold rolling work roll)

[0016] The alloy used to make cold-rolling work rolls has the following chemical composition weight percentages:

[0017] The weight percentage of the chemical composition in the alloy is: C is 0.9%, Si is 0.85-1.25%, Mn is 0.40-0.60%, Cr is 2.50-5.50%, Ni is 0.25-0.45%, Mo is 0.25-0.45%, V 0.05~0.15%, the rest is Fe and unavoidable impurities; where S≤0.015, P≤0.020.

[0018] The alloy in this embodiment is forged from the roll blank → spheroidization hydrogenation treatment → turning → quenching and tempering → turning → roll body quenching treatment → grinding process to obtain a cold-rolled work roll. In the process of roll body quenching treatment, Use the power frequency inductor and the intermediate frequency inductor to heat the surface hardening method. The temperature of the roll in the heating zone of the power frequency inductor is 910°C, the temperature in the heating zone of the intermediate...

Example Embodiment

[0019] (Embodiment 2, Alloy used for manufacturing cold rolling work rolls)

[0020] The weight percentages of the chemical composition in the alloy are: C is 1.05%, Si is 0.85-1.25%, Mn is 0.40-0.60%, Cr is 2.50-5.50%, Ni is 0.25-0.45%, Mo is 0.25-0.45%, V 0.05~0.15%, the rest is Fe and unavoidable impurities; where S≤0.015, P≤0.020. The manufacturing method and process parameters of the alloy used to manufacture cold-rolling work rolls in this example are the same as those in Example 1. The roll body is subjected to a deep peeling test to detect the roll body The depth and hardness of the hardened layer. The test results show that the surface hardness of the hardened layer can reach 99HSD, and the depth of the effective hardened layer greater than or equal to 90HSD can reach 29mm.

Example Embodiment

[0021] (Example 3, alloy used to manufacture cold-rolled work rolls)

[0022] The alloy used to make cold-rolling work rolls has the following chemical composition weight percentages:

[0023] C is 1.20%, Si is 0.85 to 1.25%, Mn is 0.40 to 0.60%, Cr is 2.50 to 5.50%, Ni is 0.25 to 0.45%, Mo is 0.25 to 0.45%, V is 0.05 to 0.15%, and the rest is Fe And unavoidable impurities; where S≤0.015, P≤0.020.

[0024] The manufacturing method and process parameters of the alloy used to manufacture cold-rolling work rolls in this example are the same as those in Example 1. The roll body is subjected to a deep peeling test to detect the roll body The depth and hardness of the hardened layer. The test results show that the surface hardness of the hardened layer can reach 98HSD, and the depth of the effective hardened layer greater than or equal to 90HSD can reach 28mm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Surface hardnessaaaaaaaaaa
Depthaaaaaaaaaa
Surface hardnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to an alloy for cold-rolling worker rollers and its preparing process, wherein the alloy comprises the main chemical constituents of: C 0.9-1.2%, Si 0.85-1.25%, Mn 0.40-0.60%, Cr 2.50-5.50%, Ni 0.25-0.45%, Mo 0.25-0.45%, V 0.05-0.155 and balancing Fe.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to an alloy suitable for manufacturing high-hardness cold-rolled work rolls and a method for manufacturing the alloy. Background technique [0002] Because the cold-rolled work rolls work under complex stress conditions such as bending, twisting, and extrusion. At this time, the surface of the part is subjected to much higher stress than the core, and the surface is constantly worn. Therefore, it must be subjected to Surface quenching produces a hardened layer on the body of the cold-rolled work roll. The hardened layer should have sufficient hardness, strength, and wear resistance. In order to withstand the impact load, the body and body of the roll should still maintain sufficient plasticity and toughness. . [0003] If the hardness of the cold-rolled work roll body is small, it is easy to permanently deform locally on the work roll body during the cold rolling process, which is co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22C38/46C22C1/02
Inventor 杨国平葛浩彬王稼秋
Owner BAOSTEEL ROLL SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap