CN203221418U - Work roll for rolling aluminum sheet metal and device for processing the same - Google Patents
Work roll for rolling aluminum sheet metal and device for processing the same Download PDFInfo
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- CN203221418U CN203221418U CN 201220754596 CN201220754596U CN203221418U CN 203221418 U CN203221418 U CN 203221418U CN 201220754596 CN201220754596 CN 201220754596 CN 201220754596 U CN201220754596 U CN 201220754596U CN 203221418 U CN203221418 U CN 203221418U
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- working roll
- shot
- peening
- rolling
- roller
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- 238000012545 processing Methods 0.000 title claims abstract description 45
- 238000005096 rolling process Methods 0.000 title claims abstract description 43
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 title claims abstract description 12
- 238000005480 shot peening Methods 0.000 claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000004411 aluminium Substances 0.000 claims description 24
- 239000004579 marble Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 13
- 238000013507 mapping Methods 0.000 description 13
- 239000011324 bead Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
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- 230000008569 process Effects 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 6
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- 238000005422 blasting Methods 0.000 description 3
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- 238000005299 abrasion Methods 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
Abstract
The utility model discloses a work roll for rolling an aluminum sheet metal and a device for processing the same. The work roll is characterized in that shot-peening is performed on the surface of the work roll for producing the aluminum sheet metal. The media may be steel balls, such as ball bearings or other media, such as glass or ceramic balls, depending upon the optical properties desired for the aluminum sheet, e.g., in terms of diffuseness or brightness of reflection. The various parameters of shot-peening can be varied to accommodate given properties of the roll, such as hardness and existing surface texture to achieve a given desired surface texture. A sheet surface with target properties and the work roll processing needed to produce it may be generated by computer modeling.
Description
The cross reference of related application
The application requires to submit on November 11st, 2011, the priority of the U.S. Provisional Application of " be used for give apparatus and method from selected pattern to aluminium metal sheet " by name number 61/558504, and its disclosed content is all quoted herein.
Technical field
The utility model relates to for the working roll of aluminum metallic plate and for the treatment of its device, more specifically, the utility model relates to the device for the production of the particular surface texture (textures) with relevant friction and optical characteristics, for example the isotropism surface on aluminium sheet.
Background technology
At present, the aluminium sheet producer usually utilizes planishing mill (temper rolling mill) or cold-rolling mill to produce the plate on desired thickness, width and surface.The surface of the cylinder roller that aluminium sheet passes (working roll) can be by using abrasive grinding wheel or bringing grinding to prepare for rolling operation.Grinding is because polishing scratch (crystal grain) makes the roller surface have the outward appearance of directionality, and described polishing scratch (crystal grain) is transmitted/be given to the plate of the rolling mistake of grinding working roll (ground work roll) then.The directionality outward appearance that is ground the plate of the rolling mistake of working roll is visible, and japanning that often can be by putting on the product (for example automobile panel) that sheet material or sheet material makes and in sight.
Embossing machine (embossing mills) also is used for giving given surface topography at metallic plate, thereby for example produces the pattern of non-directionality.After rolling mill practice and after plate thickness has reduced to target size near the final size of plate, disposable plates in embossing machine.Embossing machine only is intended to give superficial makings (with to have remarkable dimensional effect onboard be opposite), and therefore by the enterprising line operate of plate of the rolling mistake of working roll of roller mill.Matrixes for embossing in embossing machine means rolling additional step in addition, thereby needs extra device and material operation and the management roller type more various than normal roller mill.
The utility model content
Disclosed theme relates to the working roll that is used for the rolled metal plate with the finished surface of shot-peening.
On the one hand, shot-peening processing is carried out with the medium that comprises spherical medium in the rolling surface.
On the one hand, working roll rolling surface has the texture of giving by the grinding working roll, and described grinding working roll is carrying out the generation of shot-peening first being processed to working roll.
On the one hand, working roll rolling surface has by carry out the texture that shot-peening processing is given with grain.
On the one hand, working roll rolling surface has the grinding by the shot-peening first being processed and carries out the texture that shot-peening processing is given with grain.
On the one hand, shot-peening processing is carried out with the spherical medium that comprises steel ball in working roll rolling surface.
On the one hand, shot-peening processing is carried out with the spherical medium that comprises Ceramic Balls in working roll rolling surface.
On the one hand, shot-peening processing is carried out with the spherical medium that comprises glass marble in working roll rolling surface.
On the one hand, working roll rolling surface has diameter with comprising≤spherical medium of the steel ball of 0.125 inch and hardness Rc 〉=60 carries out shot-peening processing.
Disclosed theme relates to the device for Rolling Aluminium Plate, and described device has the working roll that carries out shot-peening processing and/or pre-grinding.
Disclosed theme also relates to aluminium metal sheet, and described aluminium metal sheet has the superficial makings of being given by working roll, and described working roll has use and comprises that the medium of spherical medium carries out the surface of shot-peening processing.
Disclosed theme also relates to a kind of device of the working roll for the treatment of the aluminum metallic plate, and described device comprises the shot-peening process equipment, and described shot-peening process equipment is suitable for and will penetrates on the surface that ball projects working roll.
On the one hand, described device comprises for the adjustment equipment of adjusting the speed of penetrating ball during shot-peening processing.
On the one hand, described device further comprises for adjustment and penetrates ball at the lip-deep residence time of working roll and the consequential medium impression adjustment equipment in the lip-deep percentage coverage rate of working roll.
Description of drawings
For the more complete the utility model of understanding, the following detailed description of reference example embodiment in conjunction with the following drawings.
Plane and solid (3D) schema mapping of the configuration of surface of the sample surface of the working roll that figure la and 1b produce by the EDT texturing respectively and measure by the optical profile method.
Fig. 2 be according to embodiment of the present utility model be used for working roll is carried out the surface-treated schematic representation of apparatus.
Fig. 3 a is the plane mapping figure by the configuration of surface of the sample surface of the method production of embodiment of the present utility model and working roll that pass through optical profile method mensuration.Fig. 3 b is the enlarged drawing of the fragment of Fig. 3, and Fig. 3 c and 3d are respectively by Fig. 3 a of optical profile method mensuration and the stereo mapping figure on the surface shown in the 3b.
Fig. 4 a and 4b are respectively plane and solid (3D) schema mappings by the configuration of surface of the sample surface of the method production of embodiment of the present utility model and working roll that pass through optical profile method mensuration.
Fig. 5 a is the plane mapping figure according to the configuration of surface of the sample of the aluminium sheet of the rolling mistake of embodiment of the present utility model that measures by the optical profile method, and described aluminium sheet carries out rolling by the working roll of producing according to the method for embodiment of the present utility model.Fig. 5 b is the enlarged drawing of the fragment of Fig. 5 a, and Fig. 5 c and 5d are respectively by Fig. 5 of optical profile method mensuration and the stereo mapping figure on the surface shown in the 5b.
Fig. 6 a, 6b and 6c are respectively the plane mapping figure according to the configuration of surface of three samples of the aluminium sheet of the rolling mistake of embodiment of the present utility model that measures by the optical profile method, and described aluminium sheet is rolled by the working roll of producing according to the method for embodiment of the present utility model with 10% decrease, 20% decrease and 40% decrease.Fig. 6 d, 6e and 6f are respectively Fig. 6 a that measures by the optical profile method, the stereo mapping figure on the surface shown in 6b and the 6c.
Fig. 7 a and 7b are the photos that carries out the surface-treated working roll according to embodiment of the present utility model, and Fig. 7 c and 7d are respectively the enlarged drawings of the fragment of Fig. 7 a and 7b.
Fig. 8 is that superficial makings is to the figure of the influence of coefficient of friction.
Fig. 9 is the schematic diagram for generation of the method for superficial makings according to example embodiment of the present utility model.
The specific embodiment
An aspect of content of the present utility model is the application that discloses metallic plate, expectation be to have uniform isotropic surface smoothness, namely present isotropism and catoptrical surface diffusely.Further, content illustration of the present utility model except the outward appearance effect, the directed roughness (directionally oriented roughness) on the plate surface of being crossed by grinding working roll (ground work rolls) rolling has influenced and can be used for metal sheet is formed into forming technology in the product (for example automobile panel) of given shape, and this for example is attributable to: because the oriented particles/grinding pattern in the metal sheet surface that working roll is given and the interactional variation of friction between forming tool and sheet stock (sheet stock).It is favourable in carrying out the forming technology that some aluminium sheets operate that content of the present utility model has also disclosed more isotropic surface.
A kind of is with electric spark texturing process (EDT) lathe (electric discharge texturing machine) working roll to be carried out surface treatment for the method that produces more isotropic surface at working roll, and described working roll is used to Rolling Aluminium Plate (it is mainly used in Automobile Plate).EDT texturing head with a plurality of electrodes can be placed near the roller surface, producing the discharge/spark/electric arc from each electrode to the roller surface, thereby melt the roller surface in each spark position partly and cause molten steel little pool of molten metal of formation in relevant bocca (craters).The EDT lathe has produced improved isotropism surface along the operation on the surface of rotating roller, except being characterised in that diameter up to the scope of 100um and having the many small bocca (Fig. 1) up to the 15-20um brim height.
The applicant thinks, the edge of the small bocca that is formed by EDT technology may be crisp, thereby when EDT texturing roller is used for roller mill, high contact pressure (for example between working roll, plate and/or backing roll, up to 200ksi) the isotropic texture and produce chip of wearing and tearing, described detrital deposit is on the plate surface, on the roller mill and in the lubricant.
Fig. 1 illustrates the sample surface form of the surperficial Sl of the working roll that is used for Rolling Aluminium Plate that EDT handled.Can be understood that it is sharp peak portion and the paddy portion of 5.0um with respect to the datum level magnitude that the feature of configuration of surface can be to be coated with many.
Fig. 2 illustrates the roller treating apparatus 10 that has be used to the casing 12 that comprises working roll 14.Working roll 14 can be supported on the bearing 16,18, thereby can for example be rotated by the motor 20 that links to working roll 14.Casing 12 also holds penetrates ball/shot-peening nozzle (shot/ball peening nozzle) 22, nozzle 22 can be installed on the frame 24, frame 24 allow nozzle 22 for example by its rotating screw bolt driver of motor 26(or activate chain, tooth bar, cable driver) effect or by the mobile and location optionally via the actuating of the motor-driven friction pulley driver that is associated with nozzle 22.Nozzle 22 is by compressor reducer 28 and medium charging hopper 30 feeds.Nozzle 22 mixes from the Compressed Gas (for example, air) of compressor reducer 28 with from the medium 32 of charging hopper 30, thereby advances and guide medium 30 to the outer surface S of roller 14.Medium can be the form of steel, glass or Ceramic Balls, abrasive grains or other grit blast/blasting media, further is described below.Computer 34 can be used for by programming Control as follows: control the position of nozzle 22 by control motor 26, and the rotation of control roll by control motor 20, and control the operation of compressor reducer 28 and from the speed of charging hopper 30 distribution mediums 32.Vision system 36 can be accommodated in the casing 12 view with the state that surperficial S is provided, thereby determines whether to obtain given target surface texture by the motion action of roller treating apparatus 10.Vision system can be attached to nozzle 22 or motion independently on frame 24, and can comprise amplification and avoid the cover that medium 32 influences for the protection of input hole and lens.Medium 32 by nozzle 22 projections can be assigned to exhausting line 40 by the funnel part 38 of casing 12, and exhausting line 40 for example turns back to charging hopper 30 via screw feed or under the influence of compressed air, air blast or swabbing action with medium 32.Casing 12 can be provided with a (not shown) and observation window (not shown), so that the operation of the transmission of roller 14 turnover casings 12 and monitoring roller treating apparatus 10.Nozzle 22 and compressor reducer 28 can be business type realizing the target shot peening strength, thereby produce required configuration of surface.
Selectable, nozzle 22 can be handed, as in conventional shot-blast unit.Can change compressor reducer 28 and nozzle 22 with the pressure output that obtains target shot-peening processing intensity (namely manually or under the control of computer), to regulate from the speed of the medium 32 of nozzle 22 projections, thereby adapt to dissimilar medium 32 and adapt to various operating conditions, such as the initial surface texture of the hardness of roller 14, surperficial S and required texture type, required texture type for example is attributable to steel ball/the penetrate ball for example by given medium 32() concave depth and the girth in the surface of roller, made.The size of number of impacts and the impression made at the roller surf zone by medium can be described as " % coverage rate " with respect to overall area, and can arrange by compressor reducer output, media flow speed and when nozzle 22 during through rollers 14 tops and/or roller 14 when being rotated by motor 20 nozzle 22 adjust with respect to the lateral velocity of roller 14.The control of shot-peening processing technology can be automatic or manual.For example, the people can manually keep, location and moving nozzle 22 and/or roller 14, as be equipped with protective device and local or enter fully in traditional shot-peening operation in the casing that includes workpiece the people.Can carry out vision or the micro of roller, to check suitable operation or adjusting device 10 and the acceptable surface-treated roller 14 of check after shot-peening/the grit blast process operation is finished.
Another is selectable, nozzle 22 can be included in the unlimited portable container (not shown) of sidepiece, described portable container presses against on the surperficial S that forms removable shot-peening processing cavity, and described removable shot-peening processing cavity is caught with the medium of crossing and will be drawn back again in the storage silo (as charging hopper 30) with the medium of crossing.This shot-peening processing cavity can be manually or is mechanically located and move, for example, and by motor-driven feeder (for example frame 24) and selectively under the control of computer 34.
Apparatus and method of the present utility model can be used for working roll is carried out surface treatment, described working roll gives plate given required surface when being rolled down to appropriate size, so that the outward appearance of isotropic scattering or light for example to be provided to plate, thereby no longer to need embossing (emboss) or use planishing pass (temper pass) to produce the plate of particular texture.In context, " light " refers to the outward appearance of minute surface (specular), and " scattering " refers to the outward appearance of non-specular surface.Can change superficial makings by the suitable selection to medium and operating parameter, to realize functional relevant with frictional property of given required outward appearance and formation.
According to content of the present utility model, by shot-peening/grit blast processing technology required texture is used for work roll surface (for example S), described shot-peening/grit blast processing technology advances selected medium by air pressure and passes nozzle 22 to work roll surface S.The processing time of controlled pressure, the per unit area lateral velocity of rotating speed and the nozzle 22 of working roll 14 (for example according to), the structure of nozzle 22 and the type of medium 32 produce required working roll texture, and required working roll texture is subjected to recess or the degree of depth, width and the shape of depression and the influence of the % coverage rate of recess on handled surf zone S of size, shape, density, hardness, speed and the generation of medium 32.According to disclosed some embodiment of the utility model, selected medium 32 comprises the accurate steel ball of high-quality or penetrates ball, (glass, pottery) pearl or pearl/grain mixture.Grain can be aluminium oxide, carborundum or other type.
Fig. 3 a-3d illustrates the schema mapping of configuration of surface when having carried out the surface-treated work roll surface according to the utility model embodiment by optical profile method mensuration.At the surperficial S shown in Fig. 3 a-3d
3Service rating be 1000, diameter≤0.125 ' ' and the steel ball of hardness Rc 〉=60 carry out shot-peening processing.The dimensional tolerance that grade 1000 has 0.001 ' ' spherical tolerance and ± 0.005 ' '.Nozzle 22 can be about 1 inch to about 12 inches apart from the range (stand-off distance) of roller 14, and preferential in some application scenario is about 5 inches range.Can be understood that, ball has been produced the recess of uniform shapes and do not had the lip (its for typical EDT texture) of sharp-pointed lifting at work roll surface as blasting media.Substantially level and smooth fluctuating has usually and falls into+/-3 magnitudes in the scope of 6um in the surperficial S3 of working roll, yet, can realize as required for example, surpassing the recess of any required magnitude 10um or be less than 3um.The violent surface that typical EDT surface has bigger numerical value changes.As mentioned above, according to initial background roller surface, the working roll that carries out shot-peening processing with ball can be used for producing the bright plate with isotropism outward appearance.Although above described the ball of grade 1000, can use the accurate ball of other types according to the hardness of roller.
Fig. 4 a and 4b show the surperficial S of the working roll of producing according to another embodiment of the present utility model
4More particularly, Fig. 4 a plane of being to use oxidation aluminum shot mixture (2:3 of 120:180 grain is quantitative) shot-peening processing, using the optical profile method of pattern (topology) of work roll surface of the bead shot-peening processing of AC grade (60-120 mesh (mesh)) to measure afterwards.Carry out the aluminium oxide blasting treatment eliminating the roller pattern (determining by visual assessment) of pre-grinding, the usefulness bead grit blast that continues is processed the scattering surface outward appearance that reaches required.Fig. 4 b is the surperficial S shown in Fig. 4 a
4Solid (3D) schema mapping measured by the optical profile method of configuration of surface.Understandable from Fig. 4 a and 4b, the use of bead causes surperficial S
4In have than EDT surface violent peak portion still less, and change magnitude less than the surface on EDT surface.That Fig. 4 b is illustrated in is approximate+/-surface in the 2.0um scope changes.Correspondingly, can characterize out the surperficial S that produces equitably
4More level and smooth than EDT surface, but still have microroughness, described microroughness can be used for to giving scattering isotropism appearance by the aluminium sheet of the rolling mistake of working roll with this type surface.
According to content of the present utility model, working roll has caused not passing through the crisp surface of work roll surface of EDT PROCESS FOR TREATMENT by the surface treatment of shot-peening processing.As a result, lasting time of work roll surface (texture) is longer, can bear higher surface load pressure, and produces chip still less when using in rolling operation.According to embodiment of the present utility model, when spherical medium (such as ball or bead) was used for that working roll carried out surface treatment, the superficial makings of the soft fluctuating that produces at working roll provided the advantage on production isotropism surface in the operation of rolling.Compare with the working roll that common grinding working roll or EDT are surface-treated, soft fluctuating has promoted friction less between plate and the working roll, thereby can reduce the thickness of plate before lubricant or roller surface failure biglyyer.The texture that carries out the surface-treated working roll according to the utility model can be with the speed wearing and tearing identical with the surface-treated roller of typical grinding working roll or EDT.Experiment shows, in the roller mill that working roll drives, the texture that is given to roller by method of the present utility model continues 5 to 6 times time than common grinding roller surface, and can realize bigger decrease than EDT working roll before surpassing the roller mill horsepower limits and standing lubricant failure.Greater than 10%(for example can bear according to the roller configuration of surface that embodiment of the present utility model produces, up to 50%) the thickness decrease, to produce the plate of required texture.The surface-treated working roll (it is typically operated in about scope of 8% to 10%) of this and EDT has formed sharp contrast.Choose bigger decrease can allow potentially to eliminate pass that roller mill realizes desired thickness additionally pass number of times.
Fig. 5 a shows the sample surface AS that passes through the aluminium sheet of working roll 14 rolling mistakes according to of the present utility model
5, described working roll 14 has the roller surface that the technology according to embodiment of the present utility model produces, for example the surface of the roller shown in Fig. 3 a-3d S
3Fig. 5 b is the enlarged drawing on the surface shown in Fig. 5 a, and the both produces by the optical profile method.Fig. 5 c and 5d are solid (3D) schema mappings of the sample of imaging among Fig. 5 a and the 5b when measuring by the optical profile method.The plate of the production shown in Fig. 5 a-5d is produced by adopting accurate steel ball shot-peening processing.As diagram with usually, macroscopical texture (for example, the finished recess of shot-peening) of giving metallic plate by working roll during rolling is texture anti-phase on the working roll.But the final grade of the surface smoothness of both macro and micro feature affects plate that is to say, the final grade of minute surface reflection.
Fig. 6 a, 6b and 6c illustrate when measuring by the optical profile method according to the utility model embodiment with three the surperficial sample ASs of working roll with the aluminium sheet of the rolling mistake of decrease of 10% decrease, 20% decrease and 40%
6a, AS
6bAnd AS
6cThe plane mapping figure of configuration of surface, described working roll is respectively by producing according to the technology of the utility model embodiment.The working roll that is used for rolling these samples processes to carry out surface treatment by the use bead shot-peening that uses the processing of oxidation aluminum shot shot-peening, continue, and is as above relevant with 4b with Fig. 4 a described.Fig. 6 d, 6e and 6f are respectively Fig. 6 a when measuring by the optical profile method, the stereo mapping figure on the surface shown in 6b and the 6c.
Fig. 7 a and 7b are the photos that carries out the surface-treated working roll according to embodiment of the present utility model.Fig. 7 c and 7d are respectively the enlarged photographs of the fragment of Fig. 7 a and 7b.Roller diameter shown in Fig. 7 a and the 7c is that 1.6 millimeters, grade are that 1000 steel ball carries out shot-peening processing.The roller surface S that has 100% recess coverage rate in generation
7aCondition under pair roller carry out shot-peening processing.Roller diameter shown in Fig. 7 b and the 7d is that 2.36 millimeters, grade are that 1000 steel ball carries out shot-peening processing.The roller surface S that has 50% recess coverage rate in generation
7bCondition under pair roller carry out shot-peening processing.
According to embodiment of the present utility model, can produce plate by normal Rolling Production plan, thereby not need embossing or in roller mill, use planishing pass.Surface and normal grinding roller surface abrasion ground that the work roll surface texture that produces does not have EDT to produce are fast.Therefore, the life-span of roller is above 5 to 6 times of normal roller.In the roller mill that working roll drives, to produce and be not limited to the wide narrow production schedule that arrives, reason is that texture can be owing to wearing and tearing produce striped (banding).As mentioned above, the surface of crossing than EDT Surface Machining by the plate for example produced with the finished work roll surface of ball shot-peening or normal grinding skin produce chip still less, thereby cause cleaner lubricant and plate during rolling.The plate that produces is isotropic in appearance.
Fig. 8 is illustrated in during the shaping operation of different surfaces when at vertically (L) and horizontal (T) coefficient of friction according to direction when direction forms.For sample 6022-T43, the finished surface of shot-peening has shown the minimizing of average friction and has rubbed according to the less variation of shaping direction.Can present the improvement of locating on the forming property with isotropic friction interaction of forming tool (instrument that for example is used for drawing and pressing), for example, produce the drawing restriction of how uniform drawing and expansion.
According to content of the present utility model, for example carrying out the shot-peening first being processed with ball, the demand of the initial surface smoothness of working roll is depended on the outward appearance demand of final plate, for example, high minute surface degree or slightly little minute surface degree.The isotropic surface of high if desired minute surface, then the background roughening is preferably less than 1 μ in.Lower if desired specular surface, initial working roll stock removal can be any required stock removal up to 50 μ in.The pre-required amount of grinding influences the ultimate cost of whole technology, and reason is that the surface smoothness of generation＜1 μ in roughness is more expensive usually.Using before bead or other medium shot-peening process to produce scattering surface, the initial surface smoothness demand that is used for working roll preferably＜15 μ in or after processing in the sightless roughness of the finished working roll top roll of shot-peening grinding pattern.The removal of background roller grinding will depend on that selection is for generation of the shot-peening working process parameter of scattering fineness during the processing of bead shot-peening.The utility model further illustrates by following example.
Example 1
Fig. 3 a-d, 7a and 7c show the example surface S of the working roll of making according to exemplary embodiment of the present utility model
3, S
7aImage.For the surface shown in producing, use approximately＜the standard grinding process (pre-grinding) of 5 μ in roughness produces the pattern of background roller.By service rating be 1000, diameter is that 1.6 millimeters, the finished roller of the steel ball shot-peening surface of hardness Rc 〉=60 are produced diameter and are a series of recesses from 200 to 300um scopes.Ball is advanced on the roller surface with about 58 to 62Rc hardness with following speed: described speed causes the recess depths of about 200um to the recess diameter of 400um and about 0.5 μ m to about 4 μ m.Recess diameter and the degree of depth are subjected to the influence of process conditions (speed of ball) and depend on the hardness of initial working roll.In this example, as detecting with visual inspection, about 100% of surface area is covered by recess, but coverage rate can be according to required appearance fineness scope from about 10% to about 250%.The mensuration of % coverage rate changes according to measuring method.When comparing from the physical measurement of feature image, optical means trends towards over-evaluating coverage rate.
The benefit of using these rollers to possess in split rolling method comprises: eliminate number of pass times (eliminate a number of pass times in cold rolling, eliminate 3 number of pass times in hot rolling); Can leniently arrive narrow rolling; Increase the life-span of roller; In hot rolling, produce still less roller coating owing to reducing material transfer; In cold rolling, reduced the generation of chip.
Example 2
According to another exemplary embodiment of the present utility model, can make the scattering surface working roll by the mode that shot-peening is processed the working roll roughness of 5 microinch (it is ground in advance＜).Medium can be bead, grade be A to AH, size of mesh be 20-30 to other " pottery " pearl or other the hard abrasive grains of 170-325, aluminium oxide (granularity 12 to 400) for example.May need the combination of the bead, ceramic bead and the alumina medium that apply continuously to produce surface smoothness as shown in Figs. 4a and 4b.For example, the lateral velocity of the aluminium oxide that combination grain (120 and 180 2:3 ratios) is at first used on the roller surface " nozzle, with 1.5 " per minute by 5/16, handle the service rating AC(size of mesh 60-120 that continues with 65PSI) bead " nozzle, with 1.5 " per minute by 3/8 lateral velocity, handle with 100PSI.(bristle length) adjusts range based on the upright length of the nozzle of specific shot-peening system of processing.The device for shot-peening processing is depended in the selection of nozzle, pressure and lateral velocity.The percentage of overlay area can be according to required surface smoothness from 10% to 250%.
Carry out the surface-treated working roll according to above-mentioned parameter and can operate (roller of handling with the EDT that operates with about 8% to 10% decrease usually is opposite) with the decrease between 10 to 45%.Can use more high-grade decrease to eliminate the one or more number of pass times that reduce, otherwise may need the described one or more number of pass times that reduces to realize required thickness and appearance.The plate that produces have the isotropism outward appearance and isotropism functional.
Fig. 9 illustrates the schematic diagram according to the method that is used for the generation superficial makings of the utility model embodiment.In phase I (I) (not shown), the surface topography of prediction by using a series of shot-peening processing conditions and media type to obtain.For the work roll surface of handling by shot-peening processing, can select media size, composition and shot-peening fabrication process condition (for example speed and % coverage rate) to come the required final texture of control roll, described final texture is imparted to rolled products subsequently.These variable (media sizes, composition and shot-peening fabrication process condition) between relation and the surface treatment result that the obtains basis that can be recorded and in step I, be used to the predictability microcomputer modelling of any given parameter group, thereby produce the roller superficial makings.
In next stage (II) (shown in Figure 9), prediction is used for given light actual or supposition surface topography group and disperses and outward appearance.As shown in Figure 9, modeling can comprise that selection has " target " surface of particular optical properties (for example the light of prediction disperses) to produce given brightness.Carry out having for generation the method for the aluminium sheet of required optical property subsequently by following steps.(A) accumulate the data file (comprising light scattering, length dimension and surface treatment parameter for each of a plurality of surfaces of realization) that a plurality of given surface profiles are associated with the respective optical character of each surface profile; (B) come regulation virtual surface impliedly by the intended target optical property; (C) retrieval is about having and the target optical properties data of at least one given surface profile of similar optical property, thereby virtual surface is carried out modeling; (D) optical property of comparison object optical property and described at least one surface profile; (E) under the situation of the more not indication unanimity in step (D), subsequently in data file retrieval about the data of another surface profile of optical property with following measured or prediction: how different with destination properties in the phase negative side different with destination properties described optical property measured or prediction is similar to destination properties, but about the optical property of described at least one given surface profile; (F) ratio of the magnitude of difference separately of the optical property of described at least one the given surface profile of foundation and described another surface profile and destination properties, from the optical property of described at least one given surface profile and the optical property sampling of described another surface profile, revise the correction optical property of virtual surface with realization, and record the synthetic contribution of the synthetic sampling of described at least one surface profile and described another surface profile; (G) relatively revise optical property and the target optical properties of virtual surface, to determine reducing of its differences; Then repeating step (E)-(G) up to do not have or almost do not improve identified till, therefore determined the best virtual surface relevant with target.
Note, step (C) to (G) can according to as described in be performed, perhaps can substitute with this method of automation by enough non-linear least square optimization algorithms.In order to finish this method, made up modeling procedure (I) and (II).Namely, by: (l) by coming the synthetic surface processing parameter according to the contribution proportion that synthesizes the optical property of each surface profile in best virtual surface, thereby be identified for realizing each the surface treatment parameter in a plurality of surfaces, limit the best surfaces processing parameter thus; (2) come pair roller to carry out surface treatment according to the best surfaces processing parameter; (3) being used in step (I) carries out the surface-treated roller and comes Rolling Aluminium Plate.As can be seen, when reaching modeled solution, working roll is being carried out to implement relative shot-peening machined parameters in the surface treatment.The actual result of implementing can be stored in the database together with technological parameter, and this has enlarged modeling ability.
Be understandable that embodiment described herein only is example, those of ordinary skills can make a lot of changes and improvements under the situation that does not depart from the spirit and scope of asking.For example, some disclosed contents point out, the roughness scope (roller grinding) that is applied to the rolling operation of aluminium (it covers hot rolling and cold rolling application) usually for＜1 μ in to 50 μ in, and the exemplary operation roller hardness that is used for the aluminium operation is 50 to 70Rc.However, method and apparatus of the present utility model can be used to be higher than any surface smoothness and any roller hardness of 50 μ in, to obtain identical result by adjusting the shot-peening machining medium with shot-peening machined parameters (for example realizing the pressure and residence time of % coverage rate).All these changes and improvements all are intended to fall within the scope of the present utility model.
Claims (14)
1. a working roll that is used for the aluminum metallic plate is characterized in that described working roll has the finished rolling of shot-peening surface.
2. working roll as claimed in claim 1 is characterized in that, shot-peening processing is carried out with spherical medium in the rolling surface.
3. working roll as claimed in claim 2 is characterized in that, the rolling surface has the texture of giving by the grinding working roll, and described grinding working roll is carrying out the generation of shot-peening first being processed to working roll.
4. working roll as claimed in claim 2 is characterized in that, the rolling surface has by carry out the texture that shot-peening processing is given with grain.
5. working roll as claimed in claim 2 is characterized in that, the rolling surface has by carrying out the texture that shot-peening processing is given in the grinding of shot-peening first being processed with grain.
6. working roll as claimed in claim 2 is characterized in that, spherical medium comprises steel ball.
7. working roll as claimed in claim 2 is characterized in that, spherical medium comprises Ceramic Balls.
8. working roll as claimed in claim 2 is characterized in that, spherical medium comprises glass marble.
9. working roll as claimed in claim 6 is characterized in that, the diameter of steel ball≤0.125 inch and hardness Rc 〉=60.
10. the device of a Rolling Aluminium Plate is characterized in that, described device has according to each described working roll among the claim 1-9.
11. aluminium metal sheet is characterized in that, described aluminium metal sheet has the superficial makings of giving by according to the finished working roll of each described shot-peening among the claim 1-10.
12. the device for the treatment of the working roll of aluminum metallic plate is characterized in that, described device comprises:
Shot-peening process equipment, described shot-peening process equipment are suitable for and will penetrate on the surface that ball projects working roll.
13. device as claimed in claim 12 is characterized in that, described device comprises for the adjustment equipment of adjusting the speed of penetrating ball during shot-peening processing.
14. device as claimed in claim 13 is characterized in that, described device further comprises for adjustment penetrates ball at the lip-deep residence time of working roll and the consequential medium impression adjustment equipment in the lip-deep percentage coverage rate of working roll.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161558504P | 2011-11-11 | 2011-11-11 | |
| US61/558,504 | 2011-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203221418U true CN203221418U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220754596 Expired - Fee Related CN203221418U (en) | 2011-11-11 | 2012-11-12 | Work roll for rolling aluminum sheet metal and device for processing the same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203221418U (en) |
| WO (1) | WO2013071114A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080979A (en) * | 2014-05-12 | 2015-11-25 | 美铝公司 | Apparatus and method for rolling metal |
| CN108136457A (en) * | 2015-10-14 | 2018-06-08 | 诺维尔里斯公司 | Design work roller textures |
| CN111712352A (en) * | 2018-02-16 | 2020-09-25 | 新东工业株式会社 | Evaluation system, evaluation device, evaluation method, evaluation program, and recording medium |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9457392B2 (en) | 2011-11-11 | 2016-10-04 | Alcoa Inc. | Apparatus and method for imparting selected topographies to aluminum sheet metal and application there for |
| KR101747587B1 (en) | 2013-03-15 | 2017-06-14 | 노벨리스 인크. | Rolled surfaces having a dulled gloss finish |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5409415A (en) * | 1992-07-02 | 1995-04-25 | Nikkato Corp. | Shot method |
| US5596912A (en) * | 1993-08-12 | 1997-01-28 | Formica Technology, Inc. | Press plate having textured surface formed by simultaneous shot peening |
| US6290632B1 (en) * | 1998-12-10 | 2001-09-18 | Alcoa Inc. | Ultrafine matte finish roll for treatment for sheet products and method of production |
| JP4646161B2 (en) * | 1999-04-02 | 2011-03-09 | ハンター・ダグラス・インターナショナル・エヌ・ブイ | Rolled embossed strip |
| US20070137037A1 (en) * | 2005-12-19 | 2007-06-21 | Noble Craig A | Controlled surface modification as an intermediate step in the surface texturing of work rolls |
-
2012
- 2012-11-09 WO PCT/US2012/064460 patent/WO2013071114A1/en active Application Filing
- 2012-11-12 CN CN 201220754596 patent/CN203221418U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080979A (en) * | 2014-05-12 | 2015-11-25 | 美铝公司 | Apparatus and method for rolling metal |
| CN108136457A (en) * | 2015-10-14 | 2018-06-08 | 诺维尔里斯公司 | Design work roller textures |
| US10493508B2 (en) | 2015-10-14 | 2019-12-03 | Novelis Inc. | Engineered work roll texturing |
| CN111712352A (en) * | 2018-02-16 | 2020-09-25 | 新东工业株式会社 | Evaluation system, evaluation device, evaluation method, evaluation program, and recording medium |
| US11941796B2 (en) | 2018-02-16 | 2024-03-26 | Sintokogio, Ltd. | Evaluation system, evaluation device, evaluation method, evaluation program, and recording medium |
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| Publication number | Publication date |
|---|---|
| WO2013071114A1 (en) | 2013-05-16 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: American Pennsylvania Patentee after: Okkonen g Co. Ltd. Address before: American Pennsylvania Patentee before: Alcoa Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20191112 |