Cold roller for rolling stainless steel plates, and preparation method of cold roller

A technology of stainless steel plate and cold rolling roll, applied in the field of cold rolling roll for rolling stainless steel plate and its preparation, can solve the problems of increased use cost, early crack of roll, large deformation resistance, etc. Effects of heat treatment stress

Inactive Publication Date: 2015-11-18
YIXING YONGCHANG ROLL
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stainless steel is a high-alloy steel with high deformation resistance during rolling. It is a kind of difficult-to-deform metal material. As a high-grade steel product, cold-rolled stainless steel has very strict requirements on surface quality, and also has strict requirements on t

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

[0014] Example one

[0015] The composition and weight percentage of the cold roll are: C: 0.67%; Si: 0.38%; Mn: 0.63%; Cr: 3.3%; Ni: 0.46%; Mo: 0.23%; S, P≤0.015; the rest It is Fe and inevitable impurity elements. The steps of the preparation method of the cold roll for rolling stainless steel plate include: (1) making the roll blank according to the above chemical composition scheme, and the quality of the roll blank is qualified; (2) performing rough processing and tempering heat treatment on the roll blank; (3) Semi-finish the roll blank according to the requirements of the drawings, fine-grind the roll body and conduct ultrasonic flaw detection; (4) Carry out high-temperature induction hardening on the roll body, the quenching temperature is 940℃; (5) Perform -80 on the quenched roll immediately Cryogenic treatment at ℃; (6) Tempering the cold-treated roll with a tempering holding temperature of 170℃; (7) Final finishing to obtain a finished roll, the surface hardness of t...

Example Embodiment

[0016] Example two

[0017] The composition and weight percentage of the cold roll are: C: 0.72%; Si: 0.55%; Mn: 0.67%; Cr: 3.32%; Ni: 0.53%; Mo: 0.31%; S: 0.009%; P: 0.013%; the rest is Fe and unavoidable impurity elements. The steps of the preparation method of the cold roll for rolling stainless steel plate include: (1) making the roll blank according to the above chemical composition scheme, and the quality of the roll blank is qualified; (2) performing rough processing and tempering heat treatment on the roll blank; (3) Semi-finish the roll blank according to the requirements of the drawings, finely grind the roll body and conduct ultrasonic flaw detection; (4) Carry out high-temperature induction hardening on the roll body, and the quenching temperature is 945℃; (5) Perform immediately -90 on the quenched roll Cryogenic treatment at ℃; (6) Tempering the cold-treated roll with a tempering temperature of 175°C; (7) Final finishing to obtain a finished roll. The surface hardn...

Example Embodiment

[0018] Example three

[0019] The composition and weight percentage of the cold roll are: C: 0.68%; Si: 0.43%; Mn: 0.72%; Cr: 3.45%; Ni: 0.45%; Mo: 0.26%; S: 0.006%; P: 0.015%; the rest is Fe and inevitable impurity elements. The steps of the preparation method of the cold roll for rolling stainless steel plate include: (1) making the roll blank according to the above chemical composition scheme, and the quality of the roll blank is qualified; (2) performing rough processing and tempering heat treatment on the roll blank; (3) Semi-finish the roll blank according to the requirements of the drawings, finely grind the roll body and conduct ultrasonic flaw detection; (4) Carry out high-temperature induction hardening on the roll body, and the quenching temperature is 930℃; (5) Perform -85 immediately on the quenched roll Cryogenic treatment at ℃; (6) Tempering the cold-treated roll with a tempering temperature of 165°C; (7) Final finishing to obtain a finished roll, the surface hard...

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
Surface hardnessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a cold roller for rolling stainless steel plates, and a preparation method of the cold roller. The cold roller is prepared from the following components in percentage by weight: 0.50-0.90% of C, 0.20-0.80% of Si, 0.40-1.0% of Mn, 2.8-4.0% of Cr, 0.20-0.60% of Ni, 0.20-0.60% of Mo, S which is smaller than or equal to 0.015%, P which is smaller than or equal to 0.015%, and the balance of Fe and inevitable impurities. The preparation method comprises the following steps: manufacturing roller blank; performing rough processing and quenched-tempered heat treatment on the manufactured roller blank; performing semi fine processing on the heated roller blank; finely grinding a roller body and performing ultrasonic flaw examination; performing high-temperature induction quenching on the ground roller body under 920-950 DEG C; immediately performing cryogenic treatment on the quenched roller under minus 80-minus 100 DEG C; and performing tempering heat preservation on the cooled roller under 160-180 DEG C. According to the cold roller disclosed by the invention, the surface hardness is 85-90 HSD, and the cold roller has a good crack-expansion resisting performance and high basal-body strength.

Description

technical field [0001] The invention relates to a cold rolling roll and a manufacturing method thereof, in particular to a cold rolling roll suitable for rolling stainless steel plates and a manufacturing method thereof. Background technique [0002] Stainless steel is a special variety of steel. Because of its beautiful appearance, excellent rust resistance and corrosion resistance, with the progress and development of society, its application range is becoming wider and wider, and its usage is also increasing. It is widely used It is used in building materials, automobiles, chemicals and other industries, and the output is also increasing year by year. Driven by the huge demand in the market, the output of domestic stainless steel has also been developing at a relatively fast speed. Stainless steel is a high-alloy steel with high deformation resistance during rolling. It is a kind of difficult-to-deform metal material. As a high-grade steel product, cold-rolled stainless ...

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): C22C38/44C21D9/38C21D1/10C21D6/04
CPCY02P10/25
Inventor 陈彬杨国平
Owner YIXING YONGCHANG 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