High chrome steel centrifugation roll collar and manufacturing method thereof

A manufacturing method and technology of high chromium steel, applied in the field of roll ring and its manufacture, high chromium steel roll ring and its manufacture, can solve the problem of insufficient wear resistance of composite casting roll ring, poor interface bonding between outer layer and core, rolling Problems such as poor surface quality of materials can be solved to achieve the effect of improving performance indicators, ensuring purity, and improving bonding strength

Active Publication Date: 2017-05-17
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
View PDF6 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a high chromium steel centrifugal roll ring and its manufacturing method to solve the problem of insufficient wear resistance of the composite casting roll ring during u

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High chrome steel centrifugation roll collar and manufacturing method thereof
  • High chrome steel centrifugation roll collar and manufacturing method thereof
  • High chrome steel centrifugation roll collar and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In the present invention, the test method for the surface hardness of the roller ring is: use a Shore hardness tester to detect the HSD value according to the method of GB / T13313-2008.

[0027] Below in conjunction with embodiment the present invention is described in further detail:

[0028] A high-chromium steel roll ring, including an outer layer and a core, the ratio of the outer layer to the core is 1:2, the alloy composition of the outer layer and the weight percentage of each alloy composition are: C: 0.80-1.40%, Si: 0.40~1.00%, Mn: 0.60~1.20%, P≤0.03%, S≤0.03%, Cr: 8.00%~14.0%, Mo: 1.00~3.00%, Ni+V: 0.50~1.50%, the rest is Fe and unavoidable impurities; among them, Ni and V are the main alloying elements, and the total content of the two elements is controlled between 0.50% and 1.50%.

[0029] The alloy composition of the core and the weight percentage of each alloy composition are: C: 0.5-1.5%, Si: 1.0-2.0%, Mn: 0.3-1.0%, P≤0.03%, S≤0.03%, Cr≤0.5 %, Ni≤0.5%, ...

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

No PUM Login to view more

Abstract

The invention discloses a high chrome steel centrifugation roll collar and a manufacturing method thereof, and belongs to the technical field of machining and casting. The high chrome steel centrifugation roll collar comprises an outer layer and a core part, and the proportion of the outer layer to the core part is 1:2; and the outer layer comprises alloy compositions including, by weight, 0.80%-1.40% of C, 0.40%-1.00% of Si, 0.60%-1.20% of Mn, not larger than 0.03% of P, not larger than 0.03% of S, 8.00%-14.0% of Cr, 1.00%-3.00% of Mo, 0.50%-1.50% of Ni+V and the balance Fe and inevitable impurities. The high chrome steel centrifugation roll collar solves the technical problems that a composite casting roll collar is not enough in abrasive resistance, poor in rolled metal surface quality, poor in outer layer and core part interface combination, low in bonding intensity and the like in the using process, and the economic and feasible manufacturing method is provided for producing roll collars of large and small vertical rolls of a hot strip mill.

Description

technical field [0001] The invention relates to a roll ring and a manufacturing method thereof, in particular to a high-chromium steel roll ring suitable for large and small vertical rolls of a hot-strip mill and a manufacturing method thereof, belonging to the technical field of mechanical processing and casting. Background technique [0002] The vertical rolls of the hot strip tandem mill are mainly used for descaling and side rolling of the slab to obtain strips with uniform width and neat edges. [0003] At this stage, alloy cast steel and semi-steel are generally used for vertical rolls of hot-spot rolling mills. With the pursuit of high-quality plates in steel mills, ordinary alloy cast steel and semi-steel vertical rolls can no longer meet the needs of rolling line production. In terms of machine wear and enhanced roll surface quality retention, improved strip edge quality and mill efficiency, the production method of hot-strip mill vertical rolls has evolved from int...

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): C22C38/44C22C38/46C22C38/02C22C38/04B22D13/02B22D19/16B22D1/00C21D1/18C21D1/32
Inventor 刘娣彭书平
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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