CN201442009U - A steel roll - Google Patents
A 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
- Authority
- CN
- China
- Prior art keywords
- roll
- wear
- resistant layer
- layer
- roll base
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 15
- 239000010959 steel Substances 0.000 title claims abstract description 15
- 230000007704 transition Effects 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 description 14
- 230000004907 flux Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
本实用新型涉及一种型钢轧辊，包括轧辊基体和耐磨层，在轧辊基体和耐磨层之间设有过渡层，构成三层结构复合型钢轧辊。由于轧辊基体采用60CrMnMo锻钢材质，柔韧性较好且成本相对较低；过渡层采用60K管状焊丝将轧辊基体与耐磨层有机结合在一起，使轧辊的应力状态得到均匀分布，防止了轧辊基体与耐磨层的剥离；而H25Cr3Mo2MnVA材质的耐磨层则增加了轧辊硬度，提高了耐磨性，平均工作时间比普通轧辊提高近30％，减少了换辊次数，降低了生产成本。既适用于新辊制作，又可用于旧辊修复。
The utility model relates to a shaped steel roll, which comprises a roll base body and a wear-resistant layer. A transition layer is arranged between the roll base body and the wear-resistant layer to form a three-layer composite shaped steel roll. Since the roll base is made of 60CrMnMo forged steel, it has good flexibility and relatively low cost; the transition layer uses 60K tubular welding wire to organically combine the roll base and the wear-resistant layer, so that the stress state of the roll is evenly distributed, preventing the roll base Peeling from the wear-resistant layer; while the wear-resistant layer made of H25Cr3Mo2MnVA increases the hardness of the roll and improves the wear resistance. The average working time is nearly 30% higher than that of ordinary rolls, reducing the number of roll changes and reducing production costs. It is not only suitable for making new rollers, but also for repairing old rollers.
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200147848U CN201442009U (en) | 2009-06-24 | 2009-06-24 | A steel roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200147848U CN201442009U (en) | 2009-06-24 | 2009-06-24 | A 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 | A 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 |