CN111349871A - Lei clan body steel high-wear-resistance compression roller shell - Google Patents
Lei clan body steel high-wear-resistance compression roller shell Download PDFInfo
- Publication number
- CN111349871A CN111349871A CN201811585146.1A CN201811585146A CN111349871A CN 111349871 A CN111349871 A CN 111349871A CN 201811585146 A CN201811585146 A CN 201811585146A CN 111349871 A CN111349871 A CN 111349871A
- Authority
- CN
- China
- Prior art keywords
- steel
- roll shell
- ledeburite
- press roll
- carbides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Abstract
The invention discloses a ledeburite steel high-wear-resistance press roll shell, which is made of ledeburite steel as a raw material, wherein the ledeburite steel comprises the following components in parts by weight: 1.2% -2.3% and 3.5% -13%; the representative grades of the ledeburite steel are Cr8, Cr12, Cr5Mo1V, Cr12W, Cr12MoV and Cr12Mo1V1 in GB/T1299-2014; tempered martensite, carbide and residual austenite are contained in the metallographic structure of the ledeburite steel press roll shell; the carbides comprise eutectic carbides and eutectoid carbides; the invention utilizes the high wear resistance of the eutectic carbide to improve the wear resistance of the compression roller shell and prolong the service life of the compression roller shell.
Description
Technical Field
The invention relates to the field of press roll shells, in particular to a ledeburite steel high-wear-resistance press roll shell.
Background
The press roll shell is a quick-wear part of a granulator, a blank of the currently produced press roll shell is a forged steel part, the material used is low-carbon low-alloy carburizing steel containing 0.15-0.25% of carbon, alloy bearing steel containing 0.9-1.1% of carbon, or alloy spring steel containing 0.5-0.7% of carbon, the manufacturing method of the press roll shell is in the prior patent CN201611195068.5, namely a press roll structure for a biomass granulator, only the press roll shell is made of carburizing steel, the wear resistance of the carburizing steel press roll shell is not explained and improved, and the press roll shell with high wear resistance is necessary to design a ledeburite steel press roll shell aiming at the defects.
Disclosure of Invention
The invention aims to provide a ledeburite steel high-wear-resistance press roll shell, tempered martensite, carbide and residual austenite are contained in a ledeburite steel press roll shell metallographic structure, the carbide comprises eutectic carbide and eutectoid carbide, the high wear resistance of the eutectic carbide is utilized to improve the wear resistance of the press roll shell, and the service life of the press roll shell is prolonged.
The purpose of the invention can be realized by the following technical scheme:
the raw material of the ledeburite steel high-abrasion-resistance press roll shell is ledeburite steel, the ledeburite steel comprises carbon and chromium, and the balance of silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements, wherein the content ratios of the carbon to the chromium in weight are respectively as follows: 1.2% -2.3% and 3.5% -13%.
As a further scheme of the invention: the representative grades of the ledeburite steel are Cr8, Cr12, Cr5Mo1V, Cr12W, Cr12MoV and Cr12Mo1V1 in GB/T1299-2014.
As a further scheme of the invention: the ledeburite steel press roll shell metallographic structure comprises tempered martensite, carbide and residual austenite.
As a further scheme of the invention: the carbides include eutectic carbides and eutectoid carbides.
The invention has the beneficial effects that: the raw material of the press roll shell is ledeburite steel, the ledeburite steel comprises carbon and chromium, the rest is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements, and the content ratio of the carbon to the chromium is respectively as follows: 1.2-2.3% and 3.5-13%, wherein the representative marks of ledeburite steel comprise Cr8, Cr12, Cr5Mo1V, Cr12W, Cr12MoV and Cr12Mo1V1 in GB/T1299-2014, tempered martensite, carbide and residual austenite are in a ledeburite steel press roll shell metallographic structure, the carbide comprises eutectic carbide and eutectoid carbide, the wear resistance of the press roll shell is improved by utilizing the high wear resistance of the eutectic carbide, and the service life of the press roll shell is prolonged.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The raw material of the ledeburite steel high-abrasion-resistance press roll shell is ledeburite steel, the ledeburite steel comprises carbon and chromium, the rest is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements, and the content ratios of the carbon to the chromium by weight are respectively as follows: 1.2% -2.3% and 3.5% -13%;
the representative marks of the ledeburite steel are Cr8, Cr12, Cr5Mo1V, Cr12W, Cr12MoV and Cr12Mo1V1 in GB/T1299-2014, tempered martensite, carbide and residual austenite exist in the shell metallographic structure of the ledeburite steel press roll, and the carbide comprises eutectic carbide and eutectoid carbide.
Example 1
The weight ratio of the components of carbon and chromium is 1.2 percent and 3.5 percent respectively, and the balance is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements.
Example 2
The weight ratio of the components of carbon and chromium is 1.6 percent and 7.5 percent respectively, and the balance is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements.
Example 3
The weight ratio of the components of carbon and chromium is respectively 2.3 percent and 13 percent, and the rest is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements.
The working principle of the invention is as follows: the raw material of the press roll shell is ledeburite steel, the ledeburite steel comprises carbon and chromium, the rest is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements, and the content ratio of the carbon to the chromium is respectively as follows: 1.2-2.3% and 3.5-13%, wherein the representative marks of ledeburite steel comprise Cr8, Cr12, Cr5Mo1V, Cr12W, Cr12MoV and Cr12Mo1V1 in GB/T1299-2014, tempered martensite, carbide and residual austenite are in a ledeburite steel press roll shell metallographic structure, the carbide comprises eutectic carbide and eutectoid carbide, the wear resistance of the press roll shell is improved by utilizing the high wear resistance of the eutectic carbide, and the service life of the press roll shell is prolonged.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The high-wear-resistance ledeburite steel compression roller shell is characterized in that the compression roller shell is made of ledeburite steel, the ledeburite steel comprises carbon and chromium, and the rest is silicon, manganese, iron, molybdenum, vanadium, tungsten and impurity elements, and the content ratio of the carbon to the chromium is respectively as follows: 1.2% -2.3% and 3.5% -13%.
2. A ledeburitic steel high wear resistance roll shell according to claim 1, wherein the ledeburitic steel is represented by the designations Cr8, Cr12, Cr5Mo1V, Cr12W, Cr12MoV and Cr12Mo1V1 in GB/T1299-2014.
3. The ledeburitic steel high wear resistance roll shell according to claim 1, wherein said ledeburitic steel roll shell has a metallographic structure comprising tempered martensite, carbides and retained austenite.
4. A ledeburitic steel high wear resistance roll shell according to claim 3 wherein said carbides comprise eutectic carbides and eutectoid carbides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811585146.1A CN111349871A (en) | 2018-12-24 | 2018-12-24 | Lei clan body steel high-wear-resistance compression roller shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811585146.1A CN111349871A (en) | 2018-12-24 | 2018-12-24 | Lei clan body steel high-wear-resistance compression roller shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111349871A true CN111349871A (en) | 2020-06-30 |
Family
ID=71190360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811585146.1A Pending CN111349871A (en) | 2018-12-24 | 2018-12-24 | Lei clan body steel high-wear-resistance compression roller shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111349871A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392354A (en) * | 2008-10-24 | 2009-03-25 | 宁波浙东精密铸造有限公司 | High alloy cold-work die steel |
| CN102418042A (en) * | 2011-11-16 | 2012-04-18 | 东北特殊钢集团有限责任公司 | Novel manufacturing process of phi 300 mm-phi 700 mm high-carbon high-chromium cold-working die steel forged round steel |
| CN102660714A (en) * | 2012-06-05 | 2012-09-12 | 河南理工大学 | High-carbon and high-vanadium wear-resistant steel |
| CN104017965A (en) * | 2014-06-24 | 2014-09-03 | 南车眉山车辆有限公司 | Treatment process for improving toughness of Cr12MoV steel |
| CN107312975A (en) * | 2016-04-26 | 2017-11-03 | 宝钢特钢有限公司 | A kind of high-carbon high-chromium steel and its slab production method |
| CN107435120A (en) * | 2016-05-27 | 2017-12-05 | 周文前 | Hard high-wearing feature ledeburite alloy cast iron |
| CN108774675A (en) * | 2018-07-04 | 2018-11-09 | 黄石高校智源技术咨询服务有限公司 | A kind of accurate heat treatment quenching process of high-carbon chromium tool steel precision component |
-
2018
- 2018-12-24 CN CN201811585146.1A patent/CN111349871A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392354A (en) * | 2008-10-24 | 2009-03-25 | 宁波浙东精密铸造有限公司 | High alloy cold-work die steel |
| CN102418042A (en) * | 2011-11-16 | 2012-04-18 | 东北特殊钢集团有限责任公司 | Novel manufacturing process of phi 300 mm-phi 700 mm high-carbon high-chromium cold-working die steel forged round steel |
| CN102660714A (en) * | 2012-06-05 | 2012-09-12 | 河南理工大学 | High-carbon and high-vanadium wear-resistant steel |
| CN104017965A (en) * | 2014-06-24 | 2014-09-03 | 南车眉山车辆有限公司 | Treatment process for improving toughness of Cr12MoV steel |
| CN107312975A (en) * | 2016-04-26 | 2017-11-03 | 宝钢特钢有限公司 | A kind of high-carbon high-chromium steel and its slab production method |
| CN107435120A (en) * | 2016-05-27 | 2017-12-05 | 周文前 | Hard high-wearing feature ledeburite alloy cast iron |
| CN108774675A (en) * | 2018-07-04 | 2018-11-09 | 黄石高校智源技术咨询服务有限公司 | A kind of accurate heat treatment quenching process of high-carbon chromium tool steel precision component |
Non-Patent Citations (1)
| Title |
|---|
| 赵忠魁等: "《金属材料学及热处理技术》", 31 January 2012, 北京：国防工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105018859B (en) | A kind of preparation method of wear-resisting Bainite Casting Steel | |
| CN102011055B (en) | Method for manufacturing hard bainite bearing | |
| HUP9800590A2 (en) | Wear resistant, powder metallurgy cold work tool steel articles having high impact toughness and a method for producing the same | |
| AU2003284550A1 (en) | Steel for spring being improved in quenching characteristics and resistance to pitting corrosion | |
| US5077003A (en) | Rolling-part steel and rolling part employing same | |
| CN100567549C (en) | A kind of carbides-free bainite wear resistant steel plate and production technique thereof | |
| CN105986193A (en) | Bearing steel | |
| EP1045044A4 (en) | Steels for cold forging and process for producing the same | |
| EP1096031A3 (en) | High-strength spring steel | |
| CN111349871A (en) | Lei clan body steel high-wear-resistance compression roller shell | |
| US6171411B1 (en) | Rolling bearing | |
| GB2291651A (en) | Rolling bearing | |
| EP0745695B1 (en) | Bearing part | |
| EP1052296A3 (en) | Armour plate and process for its manufacture | |
| JPH04143253A (en) | Bearing steel excellent in rolling fatigue characteristic | |
| CN101624677A (en) | G8SiMnMoVRE impact resistant high hardenability bearing steel | |
| US6123785A (en) | Product and process for producing constant velocity joint having improved cold workability and strength | |
| CN113718176A (en) | High-toughness creeper tread steel | |
| JPS569328A (en) | Forged roll for cold rolling mill | |
| CN111254364A (en) | Alloy steel with high strength and high wear resistance | |
| CN106567006A (en) | High-strength corrosion-resistant alloy steel for bearings | |
| Finkl et al. | Hot Work Die Block | |
| JP3488395B2 (en) | High hardness corrosion resistant steel with excellent workability | |
| CN102555351A (en) | Highly wear-resisting bimetal composite material | |
| CN113549836A (en) | Stud roller sleeve material steel of high-pressure roller press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200630 |