CN201988569U - Composite wear-resistant steel rolling guide roller - Google Patents
Composite wear-resistant steel rolling guide roller Download PDFInfo
- Publication number
- CN201988569U CN201988569U CN2011200101220U CN201120010122U CN201988569U CN 201988569 U CN201988569 U CN 201988569U CN 2011200101220 U CN2011200101220 U CN 2011200101220U CN 201120010122 U CN201120010122 U CN 201120010122U CN 201988569 U CN201988569 U CN 201988569U
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- China
- Prior art keywords
- deflector roll
- guide roller
- matrix
- steel rolling
- resistant
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Abstract
The utility model discloses a composite wear-resistant steel rolling guide roller, which comprises a guide roller body and a wear-resistant coating layer, wherein the wear-resistant coating layer is coated on the surface of the guide roller body, and the thickness of the coating layer ranges from 0.1mm to 2mm. Through holes coaxial with the guide roller body are arranged in the middle of the guide roller body, the wear-resistant coating layer is made of high content alloy or cermet, and the guide roller body is made of high manganese steel, low-carbon steel, steel alloy, grey cast iron or nodular cast iron. The composite wear-resistant steel rolling guide roller is particularly suitable for rolling guide devices of a steel tandem rolling system, and has the advantages that the guide roller is wear-resistant, high-temperature resistant and heat-shock resistant, the service life of the guide roller is prolonged, manufacturing cost is reduced, and the like.
Description
Technical field
The utility model relates to a kind of steel rolling deflector roll, especially a kind of composite wear-resistant steel rolling deflector roll that is used for steel rolling continuous-rolling system rolling guide.
Background technology
Guide and guards is meant a kind of important spare part that guides and escort rolled piece turnover milling train in the steel rolling production process, be used at section rolling process guiding rolled piece by needed state turnover pass, to guarantee the set distortion of rolled piece realization.Whether the design and use of guide and guards are proper, directly have influence on the quality of product and the production capacity of milling train.
Rolling guide be steel rolling mill when carrying out section bar, bar or wire rod rolling, rolled piece guiding is entered a kind of guider in the roll pass of milling train.The deflector roll of rolling guide is installed on the guide roller axis by bearing, when rolled piece passes through, deflector roll rotates with the preceding of rolled piece and then around guide roller axis, thus the sliding friction between rolled piece and the guide and guards is become rolling friction, has reduced the wearing and tearing of guide and guards and rolled piece.Deflector roll is an of paramount importance consumable accessory in the rolling guide, changes frequently, and consumption is very big.Along with the development of steel rolling technology, the speed of steel rolling is more and more faster.The finish to gauge speed of bar and general section bar is about 18m/s at present, and the finish to gauge speed of wire rod has reached about 80m/s～140m/s, and the rotating speed of high-speed rod finish to gauge sortie deflector roll is approximately per minute 30000～45000 to be changeed.Because the condition of work of deflector roll is very abominable, need bear rolled piece constantly clashes into, under high temperature (about about 1000 ℃ of rolled piece temperature), high speed, rub for a long time with rolled piece, also will bear the impact of alternation thermic load (must apply cooling water to deflector roll) simultaneously, thereby the replacing frequency of roll is very high in order to reduce the deflector roll temperature.Discover that the modal failure cause of roll is that guide roller surface lost efficacy because of excessive abrasion, secondly being deflector roll scraps because of cracking or steel bonding.When making deflector roll, for the alloy material that the wearability that increases deflector roll will choose, improve the hardness of deflector roll, can cause the easy embrittlement of deflector roll and deflector roll hardness is too high.And deflector roll is only scrapped because of surface abrasion can cause a large amount of alloy material wastes, has also increased the manufacturing cost of deflector roll.In the prior art, the deflector roll that usually uses materials such as rich chromium cast iron, carbide alloy, high-alloy steel to make, this deflector roll often lost efficacy because of reasons such as wearing and tearing, cracking, steel bondings, caused steel rolling accident generations such as stifled steel then.Though rich chromium cast iron, carbide alloy hardness height, anti-wear performance are good, because material fragility Da Yi ruptures, and machinability is poor, and cost is also high.
The utility model content
The utility model is the weak point that exists in the above-mentioned prior art for avoiding, and a kind of composite wear-resistant steel rolling deflector roll is provided, with the wearability that strengthens deflector roll, the service life that prolongs deflector roll, and the manufacturing cost of reduction deflector roll.
The utility model be the technical solution problem by the following technical solutions.
The composite wear-resistant steel rolling deflector roll is characterized in that, comprises cylindrical guide roller matrix and the abrasion resistant coatings that is coated on the described deflector roll matrix surface; The centre of deflector roll matrix has the through hole coaxial with the deflector roll matrix.
The design feature of composite wear-resistant steel rolling deflector roll of the present utility model also is:
Described through hole is a shoulder hole, shoulder hole is followed successively by bearing mounting hole, transitional pore, conical pilot hole, deflector roll axis hole, conical pilot hole, transitional pore and bearing mounting hole from deflector roll matrix one end to the other end, and the axial section of bearing mounting hole, transitional pore, conical pilot hole, deflector roll axis hole is respectively rectangle, rectangle, trapezoidal and rectangle.
The outer peripheral face of described deflector roll matrix is provided with annular groove.
Be coated with abrasion resistant coatings on the outer peripheral face of described deflector roll matrix.
The material of described abrasion resistant coatings is a kind of in high alloy material or the cermet material.
The material of described deflector roll matrix is a kind of in potassium steel, mild steel or the steel alloy.
The material of described deflector roll matrix is a kind of in grey cast-iron or the spheroidal graphite cast-iron.
The thickness of described abrasion resistant coatings is 0.1mm～2mm.
Compared with the prior art, the utility model beneficial effect is embodied in:
Steel rolling deflector roll of the present utility model, top layer at the matrix of cast iron (grey cast-iron or spheroidal graphite cast-iron) or cast steel (potassium steel, mild steel or steel alloy) applies abrasion resistant coatings, that abrasion resistant coatings has is high temperature resistant, the characteristic of wear-resisting wiping, improved the performance such as wear-resistant, high temperature resistant, heat shock resistance of deflector roll widely, prolonged the service life of deflector roll, be generally 5～10 times of traditional deflector roll service life, greatly reduce the manufacturing cost of deflector roll.
The utility model is particularly useful for steel rolling continuous-rolling system rolling guide.
Description of drawings
Fig. 1 is the cutaway view of composite wear-resistant steel rolling deflector roll of the present utility model.
Label in the accompanying drawing 1: 1 bearing mounting hole, 2 transitional pores, 3 conical pilot holes, 4 deflector roll axis holes, 5 deflector roll matrixes, 6 annular grooves, 7 coatings.
Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
The specific embodiment
Referring to Fig. 1, the composite wear-resistant steel rolling deflector roll comprises cylindrical guide roller matrix 5 and is coated on described deflector roll matrix 5 lip-deep abrasion resistant coatings 7 that the centre of deflector roll matrix 5 has the through hole coaxial with the deflector roll matrix.For ease of deflector roll is installed on the guide roller axis by bearing, described through hole is set to shoulder hole, shoulder hole is followed successively by bearing mounting hole 1, transitional pore 2, conical pilot hole 3, deflector roll axis hole 4, conical pilot hole 3, transitional pore 2 and bearing mounting hole 1 from deflector roll matrix 5 one ends to the other end, and the axial section of bearing mounting hole 1, transitional pore 2, conical pilot hole 3, deflector roll axis hole 4 is respectively rectangle, rectangle, trapezoidal and rectangle.Bearing mounting hole 1, transitional pore 2, the conical pilot hole 3 of described deflector roll matrix 5 axial both sides are symmetrical, and the pass of both sides is about the vertical bisector plane symmetry of deflector roll matrix 5 axis, two bearings is arranged on symmetrically the two ends of deflector roll.The outer peripheral face of described deflector roll matrix 5 is provided with annular groove 6, and the bus at described annular groove 6 places is circular-arc to the axis bending of deflector roll matrix 5; Rolled piece by the time be arranged in annular groove 6, can avoid rolled piece to endwisely slip along roll on the surface of deflector roll.Be coated with abrasion resistant coatings 7 on the outer peripheral face of described deflector roll matrix 5, perhaps only in described annular groove 6, apply abrasion resistant coatings 7, can save coating material.The material of described abrasion resistant coatings 7 is selected from a kind of in high alloy material or the cermet material, and characteristic high temperature resistant, wear-resisting wiping that these materials have can guarantee that deflector roll keeps high-wearing feature under the situation of high temperature.The material of described deflector roll matrix 5 is selected from a kind of in potassium steel, mild steel or the steel alloy, perhaps is selected from a kind of in grey cast-iron or the spheroidal graphite cast-iron, and these cast steels or cast iron materials all are common common materials, obtains easily and the cost of material is low.The thickness of described abrasion resistant coatings 7 is 0.1mm～2mm, and the thickness of coating 7 can be adjusted and control according to actual engine request; In the processing coating, generally can leave certain allowance.
During concrete enforcement, the matrix mother metal can be bar or cast steel (as potassium steel, mild steel or steel alloy), also can be cast iron (as grey cast-iron or spheroidal graphite cast-iron).Abrasion resistant coatings material alloys powder or ceramic powders; Alloy powder can be in Ni-based, iron-based, cobalt-based or the copper-base alloy powder a kind of; Ceramic powders can be AL
2O
3, TiO
2, Cr
2O
3, WC-Co or Cr
3C
2A kind of in the materials such as-NiCr.Can adopt supersonic speed plasma spraying method or HVAF method hot-spraying technique methods such as (HVOF), coating material is sprayed on the matrix mother metal surface, coating thickness is 0.1mm～2mm.
The rolling condition different (as: rolling kind, rolling specification, rolling speed according to steel mill ...), before the preparation deflector roll, select different matrix mother metal (as: cast steel ZG270-500) and coating material (as: WC-Co powder), and set certain coating layer thickness (as: 0.25mm).The processing and manufacturing process of composite wear-resistant steel rolling deflector roll of the present utility model generally comprises following step:
The first step: be shaped with matrix mother metal processing deflector roll by the pattern requirement, and reserve the surplus of coating 0.25mm, can do modifier treatment to base material for improving its performance in guide roller surface.
Second step: in order to improve the bond strength between coating and matrix, the guide roller surface that processes is purified (cleaning, decontamination, oil removing), alligatoring (sandblast) processing, before sandblast, the both ends of the surface and the dead eye of deflector roll should be hidden, scratch to prevent sand grains.
The 3rd step: select suitable spraying method, as adopting the supersonic speed plasma spraying method.Plasma spraying equipment mainly is made up of power cabinet, switch board, powder feeder, radio-frequency generator, plasma gun, heat exchanger etc.Usually adopt the supersonic speed plasma spraying method during practical operation, the WC-Co powder is sprayed to the guide roller surface of handling equably, control coating thickness (as: 0.25mm) in the time of spraying.
The 4th step: after spraying finishes, guide roller surface is polished to reach the requirement of surface roughness.Because the mother metal heating temperature is low in spraying application, the institutional framework and the performance of mother metal do not change, and the distortion of workpiece can be ignored; Generally speaking, because higher, the even compact of quality of face coat, thickness also is can be predefined, and need not reprocessing at the situation lower guide roll that requires not to be very high after spraying can use.
Through proving in the actual use of steel rolling mill: deflector roll of the present utility model can satisfy the actual instructions for use of steel rolling mill fully, improved the performance such as wear-resistant, high temperature resistant, heat shock resistance of deflector roll greatly, prolonged the service life of deflector roll, be generally 5～10 times of traditional deflector roll service life, and manufacture method is easy, easy operating, with low cost, very high cost performance is arranged.
Steel rolling deflector roll of the present utility model, top layer at the matrix of cast iron (grey cast-iron or spheroidal graphite cast-iron) or cast steel (potassium steel, mild steel or steel alloy) applies abrasion resistant coatings, that abrasion resistant coatings has is high temperature resistant, the characteristic of wear-resisting wiping, improved the performance such as wear-resistant, high temperature resistant, heat shock resistance of deflector roll widely, prolonged the service life of deflector roll, be generally 5～10 times of traditional deflector roll service life, greatly reduce the manufacturing cost of deflector roll.
The utility model is particularly useful for steel rolling continuous-rolling system rolling guide.
Claims (8)
1. the composite wear-resistant steel rolling deflector roll is characterized in that, comprises cylindrical guide roller matrix (5) and is coated on the lip-deep abrasion resistant coatings of described deflector roll matrix (5) (7); The centre of deflector roll matrix (5) has the through hole coaxial with the deflector roll matrix.
2. composite wear-resistant steel rolling deflector roll according to claim 1, it is characterized in that, described through hole is a shoulder hole, shoulder hole is followed successively by bearing mounting hole (1), transitional pore (2), conical pilot hole (3), deflector roll axis hole (4), conical pilot hole (3), transitional pore (2) and bearing mounting hole (1) from deflector roll matrix (5) one end to the other ends, and the axial section of bearing mounting hole (1), transitional pore (2), conical pilot hole (3), deflector roll axis hole (4) is respectively rectangle, rectangle, trapezoidal and rectangle.
3. composite wear-resistant steel rolling deflector roll according to claim 1 is characterized in that, the outer peripheral face of described deflector roll matrix (5) is provided with annular groove (6).
4. composite wear-resistant steel rolling deflector roll according to claim 1 and 2 is characterized in that, is coated with abrasion resistant coatings (7) on the outer peripheral face of described deflector roll matrix (5).
5. according to claim 1,2 or 3 described composite wear-resistant steel rolling deflector rolls, it is characterized in that the material of described abrasion resistant coatings (7) is a kind of in high alloy material or the cermet material.
6. according to claim 1,2 or 3 described composite wear-resistant steel rolling deflector rolls, it is characterized in that the material of described deflector roll matrix (5) is a kind of in potassium steel, mild steel or the steel alloy.
7. according to claim 1,2 or 3 described composite wear-resistant steel rolling deflector rolls, it is characterized in that the material of described deflector roll matrix (5) is a kind of in grey cast-iron or the spheroidal graphite cast-iron.
8. according to claim 1,2 or 3 described composite wear-resistant steel rolling deflector rolls, it is characterized in that the thickness of described abrasion resistant coatings (7) is 0.1mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200101220U CN201988569U (en) | 2011-01-13 | 2011-01-13 | Composite wear-resistant steel rolling guide roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200101220U CN201988569U (en) | 2011-01-13 | 2011-01-13 | Composite wear-resistant steel rolling guide roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201988569U true CN201988569U (en) | 2011-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200101220U Expired - Lifetime CN201988569U (en) | 2011-01-13 | 2011-01-13 | Composite wear-resistant steel rolling guide roller |
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| CN (1) | CN201988569U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615486A (en) * | 2012-04-27 | 2012-08-01 | 朱剑 | Processing technology of steel rolling wire guide point |
| CN102658453A (en) * | 2012-04-28 | 2012-09-12 | 黄石山力大通热工设备有限公司 | Processing method of high manganese steel tension roller |
| CN103882424A (en) * | 2014-03-19 | 2014-06-25 | 辽宁科技大学 | Method for preparing high-speed wire material rolling mill guide roller with laser cladding coating |
| CN104338762A (en) * | 2014-10-24 | 2015-02-11 | 合肥市泰通冶金科技有限公司 | Suspension steel rolling guide and guard device |
| CN104438366A (en) * | 2014-10-24 | 2015-03-25 | 合肥市泰通冶金科技有限公司 | Multifunctional coating guiding and guarding device |
| CN104525888A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Guide roller and manufacturing method thereof |
| CN106834869A (en) * | 2017-03-04 | 2017-06-13 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of monikrom cast iron base WC50 steel bonded carbide Roll Collar high and its manufacture method |
| CN106906401A (en) * | 2017-03-04 | 2017-06-30 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of heat-resisting base steel WC40 steel bonded carbide Roll Collar and its manufacture method |
| CN106906399A (en) * | 2017-03-04 | 2017-06-30 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of instrument base steel WC50 steel bonded carbide Roll Collar and its manufacture method |
| CN106906402A (en) * | 2017-03-04 | 2017-06-30 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of high abrasion WC steel bonded carbide Roll Collar and its manufacture method |
-
2011
- 2011-01-13 CN CN2011200101220U patent/CN201988569U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615486A (en) * | 2012-04-27 | 2012-08-01 | 朱剑 | Processing technology of steel rolling wire guide point |
| CN102658453A (en) * | 2012-04-28 | 2012-09-12 | 黄石山力大通热工设备有限公司 | Processing method of high manganese steel tension roller |
| CN102658453B (en) * | 2012-04-28 | 2014-11-19 | 黄石山力大通热工设备有限公司 | Processing method of high manganese steel tension roller |
| CN103882424A (en) * | 2014-03-19 | 2014-06-25 | 辽宁科技大学 | Method for preparing high-speed wire material rolling mill guide roller with laser cladding coating |
| CN104338762A (en) * | 2014-10-24 | 2015-02-11 | 合肥市泰通冶金科技有限公司 | Suspension steel rolling guide and guard device |
| CN104438366A (en) * | 2014-10-24 | 2015-03-25 | 合肥市泰通冶金科技有限公司 | Multifunctional coating guiding and guarding device |
| CN104525888A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Guide roller and manufacturing method thereof |
| CN104525888B (en) * | 2014-11-18 | 2017-01-18 | 西安理工大学 | Guide roller and manufacturing method thereof |
| CN106834869A (en) * | 2017-03-04 | 2017-06-13 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of monikrom cast iron base WC50 steel bonded carbide Roll Collar high and its manufacture method |
| CN106906401A (en) * | 2017-03-04 | 2017-06-30 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of heat-resisting base steel WC40 steel bonded carbide Roll Collar and its manufacture method |
| CN106906399A (en) * | 2017-03-04 | 2017-06-30 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of instrument base steel WC50 steel bonded carbide Roll Collar and its manufacture method |
| CN106906402A (en) * | 2017-03-04 | 2017-06-30 | 丹阳嘉伟耐磨材料科技有限公司 | A kind of high abrasion WC steel bonded carbide Roll Collar and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |