CN103341492B - For roll and the production technology thereof of rolling heavy section steel - Google Patents
For roll and the production technology thereof of rolling heavy section steel Download PDFInfo
- Publication number
- CN103341492B CN103341492B CN201310255806.0A CN201310255806A CN103341492B CN 103341492 B CN103341492 B CN 103341492B CN 201310255806 A CN201310255806 A CN 201310255806A CN 103341492 B CN103341492 B CN 103341492B
- Authority
- CN
- China
- Prior art keywords
- roll
- section steel
- heavy section
- rolling heavy
- steel
- 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.)
- Active
Links
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses the roll for rolling heavy section steel and production technology thereof, wherein for the roll of rolling heavy section steel, containing equally distributed globular graphite in its matrix, and matrix is granular carbide, tempered sorbite, pearlite.During roll rolling heavy section steel for rolling heavy section steel of the present invention, tiny graphite extruding and by effects such as heating power under broken, can play lubricant during stocking perforation, solve glutinous steel problem, rolled piece any surface finish is polished bright.<!--1-->
Description
Technical field
The present invention relates to a kind of roll for rolling heavy section steel and production technology thereof.
Background technology
For the roll of rolling heavy section steel (as large-scale I-steel, channel-section steel, U-shaped mining steel, sheet pile steel, angle steel, heavy rail finished frame etc.), mostly adopt Nodular cast iron material at present, often because pass is dark, hardness drop is large, amount of rolling is low, reconditioning number of times is few, intensity difference, easily produce rolling roll breakage work accident.Also the roll adopting AD180 half steel is had, because hardness is between 50-55 degree, during rolling, pass Nei Changyin weares and teares the rough tiny pimple of uneven generation and affect service life, simultaneously because the low easy generation of hardness sticks steel, cause steel surface fineness coarse, can not meet the need of market.
Summary of the invention
First object of the present invention is to provide a kind ofly has high intensity, wearability and thermal fatigue resistance, the roll for rolling heavy section steel of long service life.
The technical scheme realizing the present invention's first object is: for the roll of rolling heavy section steel, and containing equally distributed globular graphite in its matrix, and matrix is granular carbide, tempered sorbite, pearlite.
Luo Cha≤0.5 ~ 1.5 degree at the bottom of its roll surface to deep-hole slot.
Its roll neck Kang La Qiang Du≤550MPa.
Second object of the present invention is to provide a kind of production technology of the roll for rolling heavy section steel, and the roll adopting this technique to obtain has high intensity, wearability and thermal fatigue resistance.
The technical scheme realizing the present invention's second object is: for the production technology of the roll of rolling heavy section steel, comprise the following steps:
1. heat 80-100 DEG C on the basis of half steel liquidus temperature, and add the aluminium of 0.03%, calmer through more than 10 minutes, obtained half molten steel;
2. the BaCa nodulizer of 0.60% and the CaSi inovulant of 0.80% is added, and the 40-60 DEG C that heats, make Si content increase by 0.90% again;
3. the obtained polishing roll containing 1.0-1.50% graphite of cast.
The present invention has positive effect: containing equally distributed globular graphite in the matrix of (1) roll for rolling heavy section steel of the present invention, during rolling heavy section steel, tiny graphite is in extruding and fragmentation under acting on by heating power etc., lubricant can be played during stocking perforation, solve glutinous steel problem, rolled piece any surface finish is polished bright.
(2) roll surface of roll of the present invention is to Luo Cha≤0.5 ~ 1.5 degree at the bottom of deep-hole slot, and this structure makes hardness drop little and evenly.
(3) roll that the production technology of the roll for rolling heavy section steel of the present invention is obtained, thermal fatigue resistance is strong, not easily produces be full of cracks, significantly improves amount of rolling, there is high intensity, wearability and thermal fatigue resistance, reach 2 ~ 3 times of common roll service life.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the roll for rolling heavy section steel of the present invention.
Detailed description of the invention
(embodiment 1)
See Fig. 1, the roll for rolling heavy section steel of the present embodiment, containing equally distributed globular graphite in its matrix, and matrix is granular carbide, tempered sorbite, pearlite.
Luo Cha≤0.5 ~ 1.5 degree at the bottom of its roll surface to deep-hole slot, hardness drop is little and even.Its roll neck Kang La Qiang Du≤550MPa.
During rolling heavy section steel, tiny graphite is in extruding and fragmentation under acting on by heating power etc., can play lubricant during stocking perforation, and solve glutinous steel problem, rolled piece any surface finish is polished bright.
The production technology of the roll for rolling heavy section steel of the present embodiment, comprises the following steps:
1. heat 80-100 DEG C on the basis of half steel liquidus temperature, and add the aluminium of 0.03%, calmer through more than 10 minutes, obtained half molten steel.
2. the BaCa nodulizer of 0.60% and the CaSi inovulant of 0.80% is added, and the 40-60 DEG C that heats, make Si content increase by 0.90% again.
3. the obtained polishing roll containing 1.0-1.50% graphite of cast.
Adopt the roll that above-mentioned technique is obtained, through metallographic detection display, graphite is spherical, nodulizing grade one-level, sphere diameter 4um, graphite number is more than 50, matrix is granular carbide+tempered sorbite+pearlite, carbon 1.80-2.20%, a small amount of yttrium-base heavy rare earth, manganese, chromium, nickel element content are all not less than 1.0%.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. for the production technology of the roll of rolling heavy section steel, it is characterized in that: comprise the following steps:
1. heat 80-100 DEG C on the basis of half steel liquidus temperature, and add the aluminium of 0.03%, calmer through more than 10 minutes, obtained half molten steel;
2. the BaCa nodulizer of 0.60% and the CaSi inovulant of 0.80% is added, and the 40-60 DEG C that heats, make Si content increase by 0.90% again;
3. the obtained polishing roll containing 1.0-1.50% graphite of cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255806.0A CN103341492B (en) | 2013-06-25 | 2013-06-25 | For roll and the production technology thereof of rolling heavy section steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255806.0A CN103341492B (en) | 2013-06-25 | 2013-06-25 | For roll and the production technology thereof of rolling heavy section steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103341492A CN103341492A (en) | 2013-10-09 |
| CN103341492B true CN103341492B (en) | 2016-01-20 |
Family
ID=49276341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310255806.0A Active CN103341492B (en) | 2013-06-25 | 2013-06-25 | For roll and the production technology thereof of rolling heavy section steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103341492B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191173B (en) * | 2014-08-19 | 2016-06-01 | 常州凯达重工科技有限公司 | A kind of high-end rail milling train roll production technique |
| CN112845605B (en) * | 2021-01-05 | 2022-09-06 | 邯郸钢铁集团有限责任公司 | Finished hole type local graphite interval steel sticking prevention device of section steel rolling mill |
| CN113333471B (en) * | 2021-05-19 | 2023-04-28 | 邯郸钢铁集团有限责任公司 | Lubricating and rolling method for section steel roller printing ink |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906565A (en) * | 2009-06-08 | 2010-12-08 | 河北工业大学 | Carbide-containing ausferitic ductile iron grinding ball and manufacturing method thereof |
| CN102392178A (en) * | 2011-11-16 | 2012-03-28 | 天津重型装备工程研究有限公司 | Nodular cast iron and centrifugal composite casting roller |
| CN103088248A (en) * | 2011-11-01 | 2013-05-08 | 张玉新 | Formula of nodular cast iron used in automotive gear ring bracket |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2841276B2 (en) * | 1994-06-29 | 1998-12-24 | 川崎製鉄株式会社 | Hot rolling roll outer layer material and method for manufacturing hot rolling roll |
| JP2003211204A (en) * | 2002-01-22 | 2003-07-29 | Jfe Steel Kk | Method for manufacturing ribbed steel plate |
| CN100392138C (en) * | 2006-05-28 | 2008-06-04 | 江苏共昌轧辊有限公司 | Half high speed steel composite roller and preparation process thereof |
| CN101787403B (en) * | 2010-01-29 | 2011-11-02 | 河北工业大学 | Short process production technique for preparing casting of wind power generation equipment |
| CN101906566B (en) * | 2010-08-11 | 2011-12-07 | 江苏吉鑫风能科技股份有限公司 | Preparation method of low temperature spherical iron casting for 3 MW wind power wheel hub as well as additive, nodulizing agent, inoculant and instantaneous inoculant for founding |
| CN102728794B (en) * | 2012-06-20 | 2014-06-18 | 内蒙古包钢钢联股份有限公司 | Composition of nodulizer and inoculant special for large-section bulb iron roll |
-
2013
- 2013-06-25 CN CN201310255806.0A patent/CN103341492B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906565A (en) * | 2009-06-08 | 2010-12-08 | 河北工业大学 | Carbide-containing ausferitic ductile iron grinding ball and manufacturing method thereof |
| CN103088248A (en) * | 2011-11-01 | 2013-05-08 | 张玉新 | Formula of nodular cast iron used in automotive gear ring bracket |
| CN102392178A (en) * | 2011-11-16 | 2012-03-28 | 天津重型装备工程研究有限公司 | Nodular cast iron and centrifugal composite casting roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103341492A (en) | 2013-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101397629B (en) | High intensity variable section spring piece under high stress and method for producing the same | |
| CN103805832B (en) | Nodular graphite cast iron with high strength and high toughness and parts of an automobile manufactured from the same | |
| CN102251185B (en) | Preparation method of high-chromium roller for steel tube reducing mill or sizing mill and high-chromium roller prepared thereby | |
| CN102268588B (en) | Steel pipe reducing mill or sizing mill nodular cast iron roller and preparation method thereof | |
| CN103526125B (en) | A kind of semisteel roll and manufacture method thereof | |
| CN104191173B (en) | A kind of high-end rail milling train roll production technique | |
| CN102560228B (en) | Method for producing wheel made of austempered ductile iron (ADI) material | |
| CN102430839B (en) | Method for manufacturing composite straightening roll by overlaying | |
| CN103341492B (en) | For roll and the production technology thereof of rolling heavy section steel | |
| CN103252268B (en) | Super wear-resisting centrifuging composite casting tyre-shaped grinding roller and manufacturing method thereof | |
| CN103160754A (en) | Micro alloy steel cast steel wheel and manufacture method | |
| CN106191666A (en) | The track traffic bainitic steel wheel of a kind of low cost lean production and manufacture method thereof | |
| CN104372155B (en) | A kind of Technology for Heating Processing of the axletree of bullet train containing niobium | |
| EP2816127B1 (en) | Cast iron and brake part | |
| CN107448581A (en) | Anti abrasive accurate harmonic speed reducer | |
| CN107400821A (en) | The rolling preparation method of Ultra-low carbon ductile iron abrading-ball | |
| CN103334060A (en) | Graphite tool steel used for metal calendaring and manufacturing method of graphite tool steel | |
| CN104561817B (en) | A kind of high chrome backing roll and preparation method | |
| CN106676235A (en) | Processing method of CADI (Carbidic Austempered Ductile Iron) grinding balls for grinding machine | |
| CN101851723A (en) | Special Martensitic ductile iron wear-resistant medium suitable for mine | |
| CN102534389A (en) | Chromium-molybdenum steel lining board for mills and production technique thereof | |
| Li et al. | A study of casting high‐boron high‐speed steel roll materials: Untersuchung von gegossenem hochborhaltigen Schnellarbeitsstahl als Walzenmaterial | |
| CN104178689A (en) | Method for producing bushing, ball, and ball seat for braking of railway locomotive by using austempered ductile iron | |
| CN204234978U (en) | A kind of new roller overlay cladding | |
| CN109136513A (en) | A kind of automobile leaf spring production technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.66, Dong'an Xingwang Road, Huangli Town, Wujin District, Changzhou City, Jiangsu Province 213100 Patentee after: Jiangsu Kaida Heavy Industry Co.,Ltd. Address before: No. 66, Xingwang Road, Dong'an, Huangli Town, Changzhou City, Jiangsu Province 213000 Patentee before: CHANGZHOU KAIDA HEAVY INDUSTRY TECHNOLOGY CO.,LTD. |