CN102381878B - Manufacturing method of flat roller with self-texturing feature - Google Patents
Manufacturing method of flat roller with self-texturing feature Download PDFInfo
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- CN102381878B CN102381878B CN 201010268045 CN201010268045A CN102381878B CN 102381878 B CN102381878 B CN 102381878B CN 201010268045 CN201010268045 CN 201010268045 CN 201010268045 A CN201010268045 A CN 201010268045A CN 102381878 B CN102381878 B CN 102381878B
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Abstract
The invention relates to a composite roller texturing technology, in particular to a manufacturing method of a flat roller with a self-texturing feature, which comprises six steps: selection of a self-texturing material, treatment of the self-texturing material, selection of a material for a self-texturing surface layer of the flat roller, preparation of the self-texturing layer on the surface of the flat roller, heat treatment of the self-texturing layer on the surface of the flat roller, and initial texturing of the flat roller; wherein the self-texturing material adopts stable oxide ceramic particles, and a layer of chromium is uniformly plated on the outer surface layer of the oxide ceramic particles to form a composite shell core structure of the chromium-coated ceramic particles. The texturing feature of the surface of the flat roller can be always maintained when the flat roller is used and can be automatically adjusted along with wearing of the surface layer so as to always maintain the specific surface texture requirements such as the roughness, Pc value and the like. Moreover, the flat roller has a long service life, and the unit has a high rate of effective operation.
Description
Technical field
The present invention relates to composite roll texturing technology, relate in particular to the leveling roll manufacture method had from the texturing characteristic.
Background technology
Cold Rolled Sheet Steel with special surface pattern has a wide range of applications at automobile and electrical appliance industry.The texturing Cold Rolled Sheet Steel is that the leveling roll rolling of being processed through texturing by surface forms, and on processing performance impacts such as the deep-draw of steel plate, applications greatly, texturing cold-rolled steel sheet value added is high for one series surface appearance feature.
Leveling roll texturing technical basis process principle can be divided into three major types: the first, Physical Processing comprises Shot Blasting; The second, fusing, vaporization processing, comprise onElectrical Discharge Texturing, laser roughening technology and electron beam texturing technology; Three, electro-chemical machining, comprise Pretex texturing technology and ink-jet texturing technology.Document 2007 China Steel nd Annual Meeting collection, contrast in 2007 is summarized.
The shot-peening texturing is the most traditional roughing method, document Wear, 1997,207:34 ~ 40, patent CN93221264.6, CN97201491.8, US 5643054, and the impact material (being generally shot) that utilizes the centrifugal wheel of high speed rotating will have sharp edges, high rigidity accelerates to spray to the leveling roll (speed is 80 m/s approximately) of wanting texturing.The lower tiny metal particle on leveling roll surface " cutting ".The essence defect of shot-peening texturing (SBT) technique is that its texturing process and result are random and inhomogeneous, uncontrollable and difficult existing.Document manufacturing technology and lathe the 5th phase in 2002 adopts the texturing of gas shot-peening, and has contrasted the relative merits of different methods.
OnElectrical Discharge Texturing principle of work and roughing method, document Electrical discharge texturing.Int. J. Mach. Tools Manufact, 1992,32 (1/2): 183 ~ 193, with document J.Mater. Process. Technol, 1994,45:207 ~ 214, patent US20020132050, US 5250364.Leveling roll and electrode are immersed in the working fluid of insulation, apply the pulsed voltage of certain amplitude and frequency on leveling roll and electrode.Pulsed voltage makes contrasted between solid dielectric ionization, punctures, and forms discharge channel.In passage, positive pole and negative terminal surface become respectively instant therm source, TRANSIENT HIGH TEMPERATURE (approximately 20000 ℃) makes metallic substance fusing, vaporization.Just formed a series of galvanic corrosion hole on the leveling roll surface.After the electrical spark texturing, the leveling roll surface often forms white layer and lower hardness, and its investment and equipment running cost relatively high, working efficiency is not high, and pollution problem is arranged yet.
Laser roughening is to adopt the high energy pulse laser beam to act on the leveling roll surface, makes it heating, fusing part vaporization.Molten pool metal is piled up to surrounding, produced pit simultaneously in centre.But the laser roughening technology has the following disadvantages, and efficiency is lower, the texturing cost is high.The pit of laser roughening cold-rolled steel sheet is arranged too neat and is had rule, often can also indistinctly see the formed spiral lines of pit after spraying paint, and has affected the aesthetic property of the rear sheet material that sprays paint.Patents is as CN93109710.X, CN00128273.5, and CN98242107.9, CN00264774.5 carries out optimization to a certain degree on the basis of laser roughening.
The electron beam texturing, document Iron and Steel Engineer, 1997 (9): 36 ~ 40, patent US 3941970.Rotate in vacuum chamber for leveling roll and move vertically, back and forth passing through fixing electron beam gun.High-power electron beam is incident upon the leveling roll surface, with hot form, gives off energy.The part material met with electron beam at sufficiently high temperature just melts and the part evaporation, forms pit.This may be the most reliable technology of thin band continuous casting crystallization roller texturing, but the equipment of electron beam texturing is very expensive, and technique need to realize in a vacuum, and this has just limited popularization and practical application.
On Pretex texturing technological essence, it is a kind of process of electrochemical deposition.Patent US99367840, US 5789066, and JP 6315584 leveling rolls are immersed in the electrolytic solution containing chromium, pass to direct current, and the leveling roll surface forms the coating of small chromium sphere, has reached the purpose on texturing leveling roll surface.This texturing technology is also under test, and its working (machining) efficiency is not very high, and, due to electrochemical reaction occurring, easily causes a large amount of toxic chemical wastes, and environmental pollution is more serious.Patent US 5186981 has adopted the hot dipping dissolution method.
Ink-jet texturing technology, document 34th mWSP conf. Proc., ISS-AIME. 1993,30:485 ~ 489, patent US 6555223, and JP 9155403, are the leveling roll texturing technology of a kind of novelty of forming that inkjet technology is combined with electro-chemical machining.At first set the texturing parameter value of wanting to reach in computer program, drive printhead that photo-resist is printed on to the leveling roll surface, form a series of photo-resist point on the leveling roll surface like this, then utilize the corrosion head arranged side by side with printhead to carry out galvanic corrosion to leveling roll, thereby form leveling roll surface texturing pattern.But its working (machining) efficiency is not high.
Comprehensive visible, chromium plating is one of the most effective texturing technology, but problem of environmental pollution is crucial at present technology bottle diameter, urgently to be resolved hurrily.The texturing of leveling roll is mainly a kind of texturing structure at surface topography at present, chromium plating and surperficial etch technology (comprising shot-peening, electrolysis, electrical spark and laser etc.) are main texturing technology, but the ubiquitous problem of all these technology is that the life-span of texturing layer is shorter, after the texturing layer wearing and tearing with superficial makings, leveling roll must be rolled off the production line reconditioning and surface texturing again, the single work-ing life of greatly having limited leveling roll.
Summary of the invention
The object of the present invention is to provide a kind of leveling roll manufacture method had from the texturing characteristic, the method can make leveling roll in use remain the texturing characteristic on leveling roll surface, and automatically adapt to along with the wearing and tearing of upper layer, remain the superficial makings requirements such as specific roughness, Pc value; And the leveling roll long service life, the unit efficiency is high.
The present invention is achieved in that a kind of leveling roll manufacture method had from the texturing characteristic, comprises the following steps:
The first step, select from the texturing material, from the texturing material, is chosen as stable ceramic oxide particle, and described oxide ceramics is α-Al
2o
3, entirely stablize ZrO
2or both mixtures;
Second step, from the texturing material processing, evenly plate one deck chromium at the outer surface layer from the texturing material, forms the shell heart composite structure of the ceramic particle of chromium coating;
The 3rd step, leveling roll is from the selection of texturing surface layer material, and material is selected to be divided into two portions, and the one, the selection of body material, the chemical composition of body material is identical with the material chemical composition of leveling roll, body material is prepared into to granulated powders simultaneously; The 2nd, the selection of described ceramic oxide particle addition, the Pc value that the leveling roll of take requires is added as basis, and specific requirement is:
P in formula
cfor the requirement of leveling roll surfaceness, N is the spherical α-Al coated from texturing material chromium
2o
3or entirely stablize ZrO
2the add-on of the ceramic particle of pottery;
The add-on of described body material is 100-N, and unit is weight percentage, then two kinds of powder is evenly mixed, and forms leveling roll surface layer material mixed powder;
The 4th step, the leveling roll surface, from the preparation of texturing layer, adopts elevated pressure nitrogen temperature spraying technique to carry out adhesion deposition on the leveling roll surface, and described temperature jeting surface from texturing layer technology of preparing scheme is:
(a) elevated pressure nitrogen gas is heated to more than 730 ℃ and drives;
(b) leveling roll upper layer mixed powder particle is heated to more than 650 ℃ and is deposited;
(c) surface is 0.5mm-2.0mm from the texturing layer thickness;
The 5th step, the leveling roll surface, from the thermal treatment of texturing layer, adopts the medium-high frequency electromagnetic induction heating technology to carry out heat treated, adopts high frequency that the leveling roll surface is heated to 950 ℃ from the texturing layer, and insulation 20min, be cooled to room temperature; Then adopt intermediate frequency that the leveling roll surface is heated to 550 ℃ from the texturing layer, insulation 20min, be cooled to room temperature;
The 6th step, the first texturing of leveling roll, carry out mechanical polishing to the surface that has after thermal treatment from the leveling roll of texturing layer, and reaching surfaceness is 0.8 left and right; Then carry out conventional texturing and process, obtain the effect of first texturing.
Described α-Al
2o
3with the full ZrO that stablizes
2pottery is the sintered type ceramic of compact, and α-Al
2o
3with the full ZrO that stablizes
2ceramic particle is spherical or subsphaeroidal structure.
Described α-Al
2o
3with the full ZrO that stablizes
2the particle size range of ceramic particle is: 4Ra≤d
ceramic Balls≤ 6Ra, the roughness that in formula, Ra is the leveling roll requirement, d
ceramic Ballsdiameter for spherical ceramic particles; Spherical ceramic particles be take center as the 5Ra normal distribution simultaneously, and more narrow better.
The described thickness at the outer surface layer chromium coating from the texturing material is 2
-6
.
Substrate material particle sprills in described the 3rd step are spherical powder, and the maximum particle diameter of powder is 27
.
Intermediate-frequency heat treatment process triplicate in described the 5th step.
The present invention prepares one deck on the surface of leveling roll to have the upper layer from the texturing characteristic, utilize the special construction of upper layer internal hair formed material and content reach in use procedure from the texturing characteristic.The present invention adopts six steps to realize having the manufacture from texturing characteristic leveling roll, be respectively from the texturing material select, the first texturing from the thermal treatment of texturing layer and leveling roll from the preparation of texturing layer, leveling roll surface from the selection of texturing surface layer material, leveling roll surface from texturing material processing, leveling roll.The present invention can make leveling roll in use remain the texturing characteristic on leveling roll surface, and automatically adapts to along with the wearing and tearing of upper layer, remains the superficial makings requirements such as specific roughness, Pc value; And the leveling roll long service life, the unit efficiency is high.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
A kind of have from the long lifetime of texturing characteristic leveling roll manufacture method, comprises the following steps:
The first step, select from the texturing material, from the texturing material, is one of key point of the technology of the present invention, require not and leveling roll body material generation chemical reaction, the processing condition in the rolling technology process (for example emulsion, water coolant) are not reacted, wear resistance is strong, stability is high, high temperature resistant etc.Require as stable oxide ceramics, nitride ceramics, the preferred oxides pottery, do not select carbide ceramics and boride ceramics that stability is low.
Describedly from the texturing material, be preferably α-Al
2o
3, entirely stablize ZrO
2or both mixtures.Described α-Al
2o
3with the full ZrO that stablizes
2pottery be characterized as the sintered type ceramic of compact, require α-Al simultaneously
2o
3with the full ZrO that stablizes
2pottery be characterized as spherical or subsphaeroidal structure.
Described α-Al
2o
3with the full ZrO that stablizes
2the particle size range of pottery is: 4Ra≤d
ceramic Balls≤ 6Ra, the roughness that in formula, Ra is the leveling roll requirement, d
ceramic Ballsdiameter for spherical ceramic particles.Require spherical ceramic particles to take center as the 5Ra normal distribution simultaneously, and more narrow better.
Second step, from the texturing material processing, after the texturing material is selected, need to be processed it.Outer surface layer at spherical ceramic particles evenly plates one deck chromium, requires the thickness of chromium coating 2
-6
; Adopt the method for electroless plating to carry out chromium plating, form the shell heart composite structure of the spherical ceramic particles of chromium coating.
The 3rd step, leveling roll is from the selection of texturing surface layer material, and material selects to be divided into two parts, the one, the selection of body material, the chemical composition of body material is identical with the material chemical composition of leveling roll, body material is prepared into to spherical powder simultaneously, and the maximum particle diameter of powder is 27
, particle diameter is less than or equal to 27
.The 2nd, the selection of spherical ceramic particles addition, the Pc value that the leveling roll of take requires is added as basis, and specific requirement is:
P in formula
cfor the requirement of leveling roll surfaceness, N is for to coat spherical α-Al from texturing material chromium
2o
3or entirely stablize ZrO
2the add-on of the ceramic particle of pottery.The add-on of described body material is 100-N, and unit is weight percentage, then two kinds of powder is evenly mixed, and forms leveling roll surface layer material mixed powder.
The 4th step, from the texturing layer, prepared by the leveling roll surface, adopt warm spraying technique to prepare the leveling roll surface from the texturing layer on the roller surface, its technical scheme is: adopt elevated pressure nitrogen temperature spraying technique to carry out adhesion deposition on the leveling roll surface, warm jeting surface is characterized as from texturing layer technology of preparing scheme:
(a) elevated pressure nitrogen gas is heated to more than 730 ℃ and drives;
(b) leveling roll upper layer mixed powder particle is heated to more than 650 ℃ and is deposited;
(c) surface is 0.5mm-2.0mm from the texturing layer thickness.
The 5th step, the leveling roll surface, from the thermal treatment of texturing layer, adopts the medium-high frequency electromagnetic induction heating technology to carry out heat treated, adopts high frequency that the leveling roll surface is heated to 950 ℃ from the texturing layer, and insulation 20min, be cooled to room temperature.Then adopt intermediate frequency that the leveling roll surface is heated to 550 ℃ from the texturing layer, insulation 20min, be cooled to room temperature, described intermediate-frequency heat treatment process triplicate.
The 6th step, the first texturing of leveling roll, carry out mechanical polishing to the surface that has after thermal treatment from the leveling roll of texturing layer, and reaching surfaceness is 0.8 left and right.Then carry out conventional texturing and process, for example EDT or laser roughening are processed, and obtain the effect of first texturing.Also can carry out the special-purpose texturing that the present invention was suitable for processes, for example adopt the method for electrolytic corrosion, the surface of leveling roll is corroded, owing to from the texturing material, thering is strong solidity to corrosion in electrolytic solution, therefore form superficial makings after surface corrosion, reach the effect of first texturing.
After above processing, leveling roll is exactly final product, reaches the requirement of reaching the standard grade.Approximately can reach more than 5 times of common texturing leveling roll its work-ing life.
Embodiment 1
Experiment is the 3Cr material with leveling roll, and its chemical composition is (mass percent %): C 0.78%, and Si 0.43%, and Mn 0.45%, and Cr 2.98%, and Mo 0.66%, and V 0.2%, and Ni 0.35%.The purpose reached is that Ra is 4.25
, the Pc value is greater than 50/cm.In laboratory, utilizing the leveling roll material to prepare each car of φ 100 * 150 two ends carefully tests as the simulating piece of leveling roll for the small specimen of φ 25 * 25.
According to concrete steps requirement of the present invention, carry out the preparation from the texturing leveling roll:
The first step, from the selection of texturing material.Ceramics, as from the texturing material, is the fine and close α-Al of sintered type
2o
3pottery is spheroidal particle.Medium particle diameter is 21
, distribution range is: 17-25.5
, normal distribution.
Second step, from the texturing material processing.Adopt the method for electroless plating at spherical α-Al
2o
3the outer surface layer of ceramic particle evenly plates one deck chromium, and the thickness of chromium layer is 2
, the shell heart composite structure of the spherical ceramic particles that formation chromium coats.
The 3rd step, the selection of leveling roll surface layer material.Select the material of leveling roll to prepare powder, powder is spherical, and the maximum particle diameter of powder is 25
, medium particle diameter is 18
, distribution range 1-25
.From spherical α-Al for texturing
2o
3the ceramic particle addition is 0.03, and unit is weight percentage, and the add-on of described body material is 100-0.03=99.97, and unit is weight percentage, then two kinds of powder is evenly mixed, and forms leveling roll surface layer material mixed powder.
The 4th step, prepared from the texturing layer by the leveling roll surface.Adopt elevated pressure nitrogen temperature spraying technique to carry out adhesion deposition on the leveling roll surface: (a) elevated pressure nitrogen gas is heated to 730 ℃, and (b) the mixed powder particle is heated to 650 ℃, and (c) surface is 2.0mm from the texturing layer thickness.
The 5th step, the leveling roll surface is from the thermal treatment of texturing layer.Adopt the medium-high frequency electromagnetic induction heating technology to carry out heat treated.Adopt high frequency that the leveling roll surface is heated to 950 ℃ from the texturing layer, insulation 20min, be cooled to room temperature.Then adopt intermediate frequency that the leveling roll surface is heated to 550 ℃ from the texturing layer, insulation 20min, be cooled to room temperature, described intermediate-frequency heat treatment process triplicate.
The 6th step, the first texturing of leveling roll.Mechanical polishing is carried out from the leveling roll of texturing layer in the surface that has after thermal treatment, and reaching surfaceness is 0.8 left and right.Then carry out conventional texturing and process, for example EDT or laser roughening are processed, and obtain the effect of first texturing.
Adopting the 40Cr steel loop that surfaceness is 0.8 to be rotated mill, is φ 50 * 30 to bull ring, gets the roughness that different depths is measured simulating piece.When reaching 0.8mm, abrasion loss still keeps 3.85 roughness.Reached predetermined effect.
Embodiment 2
Experiment is the 5Cr material with leveling roll, and its chemical composition is (mass percent %): C 0.87%, and Si 0.45%, and Mn 0.43%, and Cr 4.98%, and Mo 0.57%, and V 0.21%, and Ni 0.21%.The purpose reached is that Ra is 2.5
, the Pc value is greater than 70/cm.
In laboratory, utilizing leveling roll to prepare each car of φ 100 * 150 two ends carefully tests as the simulating piece of leveling roll for the small specimen of φ 25 * 25.
Experimental procedure is identical with embodiment 1, and the difference parameter is chosen as: spherical α-Al
2o
3the medium particle diameter of particle is 12.5
, the thickness of chromium coating is 6
, spherical α-Al
2o
3the ceramic particle addition is 0.015, and unit is weight percentage, and the add-on of described body material is 100-0.015=99.985, and unit is weight percentage, and surface is 1.0mm from the texturing layer thickness.
Test effect: still keep 2.25 roughness when abrasion loss reaches 0.5mm.Reached predetermined effect.
Embodiment 3
Experiment is the 5Cr material with leveling roll, and its chemical composition is (mass percent %): C 0.87%, and Si 0.45%, and Mn 0.43%, and Cr 4.98%, and Mo 0.57%, and V 0.21%, and Ni 0.21%.The purpose reached is that Ra is 3.5
, the Pc value is greater than 50/cm.
In laboratory, utilizing leveling roll to prepare each car of φ 100 * 150 two ends carefully tests as the simulating piece of leveling roll for the small specimen of φ 25 * 25.
Experimental procedure is identical with embodiment 1, and the difference parameter is chosen as: spherical α-Al
2o
3the medium particle diameter of particle is 17.5
, the thickness of chromium coating is 3.5
, spherical α-Al
2o
3the ceramic particle addition is 0.02, and unit is weight percentage, and the add-on of described body material is 100-0.02=99.98, and unit is weight percentage, and surface is 1.5mm from the texturing layer thickness.Adopt electrolytic corrosion to be corroded the surface of leveling roll, reach the effect of first texturing.
Test effect: still keep 3.25 roughness when abrasion loss reaches 0.5mm.Reached predetermined effect.
Embodiment 4
Experiment is the 5Cr material with leveling roll, and its chemical composition is (mass percent %): C 0.87%, and Si 0.45%, and Mn 0.43%, and Cr 4.98%, and Mo 0.57%, and V 0.21%, and Ni 0.21%.The purpose reached is that Ra is 4.5
, the Pc value is greater than 50/cm.
In laboratory, utilizing leveling roll to prepare each car of φ 100 * 150 two ends carefully tests as the simulating piece of leveling roll for the small specimen of φ 25 * 25.
Experimental procedure is identical with embodiment 1, and the difference parameter is chosen as: spherical α-Al
2o
3the medium particle diameter of particle is 22.5
, the thickness of chromium coating is 4.0
, spherical α-Al
2o
3the ceramic particle addition is 0.05, and unit is weight percentage, and the add-on of described body material is 100-0.05=99.95, and unit is weight percentage, and surface is 0.5mm from the texturing layer thickness.
Test effect: still keep 4.55 roughness when abrasion loss reaches 0.3mm.Reached predetermined effect.
Embodiment 5
Experiment is the rapid steel system with leveling roll, and its chemical composition is (mass percent %): C 2.28%, and W 4.66%, and Mo 4.79%, and V 6.05%, and Cr 7.7%, and Mn 0.5%, and Si 0.8%, and Ni 0.6%, and S 0.017%, and P 0.02%.The purpose reached is that Ra is
, the PC value is greater than 70/cm.
Utilize in laboratory and scrap the leveling roll roller shell and prepare simulating piece the carrying out property check of the small specimen of φ 25 * 150 as leveling roll.
Experimental procedure is identical with embodiment 1, and the difference parameter is chosen as: select the spherical ZrO that entirely stablizes
2particle, medium particle diameter is
, the thickness of chromium coating is
, the spherical ZrO that entirely stablizes
2particulate ceramic particle addition is 0.025, and unit is weight percentage, and the add-on of described body material is 100-0.025=99.975, and unit is weight percentage, and surface is 0.5mm from the texturing layer thickness.
Test effect: still keep 2.15 roughness when abrasion loss reaches 0.3mm.Reached predetermined effect.
These are only preferred embodiment of the present invention, be not intended to limit the protection domain of invention, therefore, all any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within all being included in protection scope of the present invention.
Claims (6)
1. the leveling roll manufacture method had from the texturing characteristic, is characterized in that: comprise the following steps:
The first step, select from the texturing material, from the texturing material, is chosen as stable ceramic oxide particle, and described oxide ceramics is α-Al
2o
3, entirely stablize ZrO
2or both mixtures;
Second step, from the texturing material processing, evenly plate one deck chromium at the outer surface layer from the texturing material, forms the shell heart composite structure of the ceramic particle of chromium coating;
The 3rd step, leveling roll is from the selection of texturing surface layer material, and material is selected to be divided into two portions, and the one, the selection of body material, the chemical composition of body material is identical with the material chemical composition of leveling roll, body material is prepared into to granulated powders simultaneously; The 2nd, the selection of described ceramic oxide particle addition, the Pc value that the leveling roll of take requires is added as basis, and specific requirement is:
P in formula
cfor the requirement of leveling roll surfaceness, N is the spherical α-Al coated from texturing material chromium
2o
3or entirely stablize ZrO
2the add-on of the ceramic particle of pottery;
The add-on of described body material is 100-W, and then the weight percentage that W is the ceramic particle add-on evenly mixes two kinds of powder, forms leveling roll surface layer material mixed powder;
The 4th step, the leveling roll surface, from the preparation of texturing layer, adopts elevated pressure nitrogen temperature spraying technique to carry out adhesion deposition on the leveling roll surface, and described temperature jeting surface from texturing layer technology of preparing scheme is:
(a) elevated pressure nitrogen gas is heated to more than 730 ℃ and drives;
(b) leveling roll upper layer mixed powder particle is heated to more than 650 ℃ and is deposited;
(c) surface is 0.5mm-2.0mm from the texturing layer thickness;
The 5th step, the leveling roll surface, from the thermal treatment of texturing layer, adopts the medium-high frequency electromagnetic induction heating technology to carry out heat treated, adopts high frequency that the leveling roll surface is heated to 950 ℃ from the texturing layer, and insulation 20min, be cooled to room temperature; Then adopt intermediate frequency that the leveling roll surface is heated to 550 ℃ from the texturing layer, insulation 20min, be cooled to room temperature;
The 6th step, the first texturing of leveling roll, carry out mechanical polishing to the surface that has after thermal treatment from the leveling roll of texturing layer, and reaching surfaceness is 0.8 left and right; Then carry out conventional texturing and process, obtain the effect of first texturing.
2. the leveling roll manufacture method had from the texturing characteristic according to claim 1, is characterized in that: described α-Al
2o
3with the full ZrO that stablizes
2pottery is the sintered type ceramic of compact.
3. the leveling roll manufacture method had from the texturing characteristic according to claim 2, is characterized in that: described α-Al
2o
3with the full ZrO that stablizes
2the particle size range of ceramic particle is: 4Ra≤d
ceramic Balls≤ 6Ra, the roughness that in formula, Ra is the leveling roll requirement, d
ceramic Ballsdiameter for spherical ceramic particles; Spherical ceramic particles be take center as the 5Ra normal distribution simultaneously, and more narrow better.
4. the leveling roll manufacture method had from the texturing characteristic according to claim 1, it is characterized in that: the described thickness at the outer surface layer chromium coating from the texturing material is at 2 μ m-6 μ m.
5. the leveling roll manufacture method had from the texturing characteristic according to claim 1, it is characterized in that: the substrate material particle sprills in described the 3rd step are spherical powder, the maximum particle diameter of powder is 27 μ m.
6. the leveling roll manufacture method had from the texturing characteristic according to claim 1, is characterized in that: the intermediate-frequency heat treatment process triplicate in described the 5th step.
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| CN103949601A (en) * | 2014-04-30 | 2014-07-30 | 宝山钢铁股份有限公司 | Preparation method for thin-strip casting crystallization roller surface appearance |
| CN104002203B (en) * | 2014-05-30 | 2016-08-24 | 宝山钢铁股份有限公司 | A kind of thin band continuous casting crystallization roller adjustable controlled high roughness texturing surface preparation method |
| KR101677390B1 (en) * | 2015-09-23 | 2016-11-18 | 주식회사 포스코 | Method for manufacturing coated steel sheet having excellent surface quality and press moldability and coated steel sheet produced using the same |
| CN113195123B (en) * | 2018-12-12 | 2023-05-23 | 杰富意钢铁株式会社 | Rolling work roll, rolling mill provided with same, and rolling method |
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| WO2008107866A1 (en) * | 2007-03-07 | 2008-09-12 | Objet Geometries Ltd. | Rapid production apparatus |
| EP2011380A2 (en) * | 2007-07-04 | 2009-01-07 | agria-Werke GmbH | Rotatable milling device for soil cultivation |
| CN101486051A (en) * | 2009-02-24 | 2009-07-22 | 武钢集团昆明钢铁股份有限公司 | Method for leveling titanium board coil |
| CN201471105U (en) * | 2009-06-15 | 2010-05-19 | 王浩东 | Improved metal plate welding line leveling machine |
| JP4503687B1 (en) * | 2009-09-15 | 2010-07-14 | 安久津 義人 | Mounting structure of deep plow working machine and ground leveling roller device in cultivator unit and mounting device used for this structure |
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