CN201442009U - Section steel roll - Google Patents
Section steel roll Download PDFInfo
- Publication number
- CN201442009U CN201442009U CN2009200147848U CN200920014784U CN201442009U CN 201442009 U CN201442009 U CN 201442009U CN 2009200147848 U CN2009200147848 U CN 2009200147848U CN 200920014784 U CN200920014784 U CN 200920014784U CN 201442009 U CN201442009 U CN 201442009U
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- roll
- wear
- matrix
- section steel
- layer
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- Expired - Fee Related
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Abstract
The utility model relates to a section steel roll which comprises a roll matrix and a wear-resisting layer, and a transition layer is arranged between the roll matrix and the wear-resisting layer, thereby constituting a composite section steel roll with a three-layer structure. As the roll matrix adopts a 60CrMnMo forged steel material, the flexibility is better and the cost is relatively lower; the transition layer adopts a 60K flux cored wire for organically combining the roll matrix and the wear-resisting layer together, thereby evenly distributing the stress state of the roll and preventing the roll matrix from being stripped from the wear-resisting layer; and the strength of the roll of the wear-resisting layer with an H25Cr3Mo2MnVA material is increased, the wear resistance is improved, the average working time is improved by about 30% in comparison with the ordinary roll, the times of changing the roll is reduced, and the production cost is reduced. The section steel roll can not only be applicable to manufacturing the new roll, but also be used for repairing the old roll.
Description
Technical field
The utility model belongs to the mechanical equipment of steel rolling field, the compound steel roll that particularly a kind of heavy merchant mill is used.
Background technology
In rolling of sectional iron is produced, roll is in high temperature, high pressure, the sharp heat of chilling and the mal-condition work of alternate load repeatedly all the time, and rolling face very easily damages, and causes to produce the mesothyrid rapid wear and the roll of having to frequently change, have a strong impact on output and product quality, cause loss due to spoiled work; And the roll body also forms crackle easily, causes whole fracture of roller, both increased artificial and disposal cost, influenced carrying out smoothly of producing again, increased production cost.
For this reason, Chinese patent publication number CN92229808.4 provides a kind of composite roll of being made up of roller substrate and build-up wear-resistant layer, adopts common bead-welding technology, the build-up wear-resistant layer is covered on the working face between roller substrate two collars form wearing layer.Though this composite roll has prolonged roll service life, can reduce the roll change number of times, reduces production costs.But its defective be roll in the operation of rolling, the two-layer phenomenon of peeling off appears between roller substrate and the build-up wear-resistant layer, cause the roll working life to reduce.
Summary of the invention
The purpose of this utility model is exactly at above-mentioned defective, provides a kind of rational in infrastructure, both can save cost relatively, can increase the roll wearability again, reduces the roll change number of times, improves compound steel roll in service life.
The technical solution that the utility model is taked is:
A kind of shaped roll comprises roller substrate and wearing layer, is provided with transition zone between roller substrate and wearing layer, constitutes the compound steel roll of three-decker.
Described transition series of strata adopt the 60K flux cored wire to carry out constant temperature automatic submerged arc welding built-up welding by the pass shape on roller substrate and form.
Described wear-resisting series of strata employing H25Cr3Mo2MnVA flux cored wire carries out constant temperature automatic submerged arc welding built-up welding to transition zone and goes out the pass shape.
Roller substrate adopts 60CrMnMo forged steel material, and pliability is better and cost is relatively low; Transition zone adopts the 60K flux cored wire, has played the effect with roller substrate and wearing layer combination, and the stress state of roll is evenly distributed, and has prevented peeling off of roller substrate and wearing layer; And the wearing layer of H25Cr3Mo2MnVA material has increased the case hardness of roll, has improved the anti-wear performance of roll, and the average operation time that makes roll improves nearly 30% than common roll, reduced the roll change number of times, has reduced production cost.The utility model is not only applicable to new roller and makes, and can be used for the reparation of old roller.
Description of drawings
Accompanying drawing is a shaped roll structure partial cutaway view.
Among the figure: roller substrate 1, transition zone 2, wearing layer 3.
The specific embodiment
By accompanying drawing as seen, the utility model comprises roller substrate 1, transition zone 2 and wearing layer 3, is provided with transition zone 2 between roller substrate 1 and wearing layer 3, constitutes the compound steel roll of three-decker.Roller substrate 1 material is the 60CrMnMo forged steel, adopts orthodox casting to produce the cylinder of anapsid through the method for forging and pressing and differential temperature processing; What connect roller substrate 1 and appearance wearing layer 3 is transition zone 2, material is 60K, adopt mode that flux cored wire breaker roll matrix carries out constant temperature automatic submerged arc welding by the built-up welding of pass shape become to have the pass shape shaped roll, for even built-up welding wearing layer lays the foundation.Outermost wearing layer 3 adopts the H25Cr3Mo2MnVA flux cored wire that transition zone 2 is carried out constant temperature automatic submerged arc welding, forms to have the roll extexine of pass shape, and has the advantages that wearability is good, hardness is high.In the combination that has realized body of roll toughness and rolling face intensity and hardness aspect the roll use.
Claims (3)
1. a shaped roll comprises roller substrate and wearing layer, it is characterized in that, is provided with transition zone between roller substrate and wearing layer, constitutes the compound steel roll of three-decker.
2. shaped roll according to claim 1 is characterized in that, described transition series of strata adopt flux cored wire to carry out constant temperature automatic submerged arc welding built-up welding by pass shape breaker roll matrix and form.
3. shaped roll according to claim 1 is characterized in that, described wear-resisting series of strata employing flux cored wire carries out constant temperature automatic submerged arc welding built-up welding to transition zone and goes out the pass shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200147848U CN201442009U (en) | 2009-06-24 | 2009-06-24 | Section steel roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200147848U CN201442009U (en) | 2009-06-24 | 2009-06-24 | Section steel roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201442009U true CN201442009U (en) | 2010-04-28 |
Family
ID=42546684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200147848U Expired - Fee Related CN201442009U (en) | 2009-06-24 | 2009-06-24 | Section steel roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201442009U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259114A (en) * | 2011-04-01 | 2011-11-30 | 周明 | Method for manufacturing bionic high-wear-resistance long-service-life easy-to-repair novel composite roller |
| CN102990195A (en) * | 2012-12-13 | 2013-03-27 | 常州蓝翼飞机装备制造有限公司 | Surfacing process for corrosion-resistant layers of tube plates of large heat exchangers |
| CN103706921A (en) * | 2013-12-23 | 2014-04-09 | 鞍钢实业集团冶金机械有限公司 | Build up welding repair method of supporting roller of hot continuous rolling finishing mill |
| CN105436709A (en) * | 2015-11-23 | 2016-03-30 | 莱芜钢铁集团有限公司 | Roller side wall repairing method and roller |
| CN107716556A (en) * | 2017-11-22 | 2018-02-23 | 江苏环宇冶金科技有限公司 | A kind of high hardness type steel roll |
| CN109108516A (en) * | 2018-11-13 | 2019-01-01 | 中天钢铁集团有限公司 | A kind of new roller bead-welding technology |
| CN112191789A (en) * | 2020-09-29 | 2021-01-08 | 无锡隆迪精密锻件有限公司 | Gear ring forging die for staged forging and forging process |
-
2009
- 2009-06-24 CN CN2009200147848U patent/CN201442009U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259114A (en) * | 2011-04-01 | 2011-11-30 | 周明 | Method for manufacturing bionic high-wear-resistance long-service-life easy-to-repair novel composite roller |
| CN102990195A (en) * | 2012-12-13 | 2013-03-27 | 常州蓝翼飞机装备制造有限公司 | Surfacing process for corrosion-resistant layers of tube plates of large heat exchangers |
| CN103706921A (en) * | 2013-12-23 | 2014-04-09 | 鞍钢实业集团冶金机械有限公司 | Build up welding repair method of supporting roller of hot continuous rolling finishing mill |
| CN103706921B (en) * | 2013-12-23 | 2015-08-12 | 鞍钢实业集团冶金机械有限公司 | Hot-rolling finishing mill backing roll build-up welding repair method |
| CN105436709A (en) * | 2015-11-23 | 2016-03-30 | 莱芜钢铁集团有限公司 | Roller side wall repairing method and roller |
| CN107716556A (en) * | 2017-11-22 | 2018-02-23 | 江苏环宇冶金科技有限公司 | A kind of high hardness type steel roll |
| CN109108516A (en) * | 2018-11-13 | 2019-01-01 | 中天钢铁集团有限公司 | A kind of new roller bead-welding technology |
| CN112191789A (en) * | 2020-09-29 | 2021-01-08 | 无锡隆迪精密锻件有限公司 | Gear ring forging die for staged forging and forging process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |