CN1509221A - Support bodies and method for improving wear and tear on support bodies in large-scale grinders - Google Patents
Support bodies and method for improving wear and tear on support bodies in large-scale grinders Download PDFInfo
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- CN1509221A CN1509221A CNA028080300A CN02808030A CN1509221A CN 1509221 A CN1509221 A CN 1509221A CN A028080300 A CNA028080300 A CN A028080300A CN 02808030 A CN02808030 A CN 02808030A CN 1509221 A CN1509221 A CN 1509221A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Turning (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to a method for improving wear and tear on support bodies (54) for plates or grinding belts in large-scale grinders (1). The support body (54) has a base body (18), onto which an abrasion-resistant primary layer of at least 0.3 mm thickness is applied using a thermal spraying process. This is configured as an inhomogeneous layer with an oxide entrapment of a specific porosity. If the support body (54) is a roll for the forward feed unit (20, 28), the roll body is roughened and a primer and the primary layer are applied using a thermal spraying process. Approximately 50 % of the primary layer consists of chromium steel, in particular 13 % chromium steel and an abrasion-resistant hard material and said primary layer provides a coarse surface with good grip that is resistant to wear and tear. If the support body (54) is a grinding-belt contact roll (9, 9'), the latter is polished after the thermal spraying process. If the support body (54) is a grinding belt shoe (50), the base body (18) is roughened and an adhesive layer and then the primary layer are applied in a thermal spraying process. The wear-resistant primary layer is polished to create a smooth surface and the layer construction is configured to produce a high degree of slip.
Description
Technical field
The present invention relates to a kind of method that is used to improve surface grinding machine supporting mass abrasive conditions, be used for the driven roller and/or the supporting mass grinding belt touch roll and/or reaction abutment and/or the reactive force roller of feed unit especially at least.The invention still further relates to the plate of surface grinding machine or the supporting mass of grinding belt, they or constitute the driven roller and/or the formation grinding belt touch roll of feed unit and/or constitute reaction abutment and/or reactive force roller.
Background technology
Surface grinding machine is special kind in the grinding machine in decades.Grinding machine has considerable size.It highly is 1.5 to 3 meters, and length extends to several meters according to bistrique from one meter always.Typical lathe width is more than 1 to 3 meter.Surface grinding machine is applicable to special situation under normal conditions, mainly is the width of the workpiece that will be ground.Workpiece is followed workpiece and is passed through lathe continuously.Therefore be referred to as a grinding conveyer line for bigger grinding machine on technical term, it interconnects input and output.A typical application occasion is the grinding of roughing plate.Wherein in most of the cases bottom surface and end face are ground on whole width simultaneously.The roughing plate has a 0.5mm and bigger blocked up after direct extruding, will reach a nominal size after ground finish, and thickness error is ± 1 ÷ 3/100mm.Thickness error must keep even on whole plane.Require to arrive very high surface quality for the workpiece that processes.Grinding requires powerful motor to be used to remove most quantity of material to the finishing mill as the first step.Need heavy-duty motor for the pressure that will be ground plate too by carrying.Also produce most centripetal forces here.Corresponding huge ground finish also is subjected to full accuracy and lathe, mainly is the restriction of bed piece stability for several square metres board size.Adopt extremely different method for grinding for surface grinding machine.This is provided by the ground finish form, and they are finishing mill, fine grinding or end mill (Schuhschliff).At first adopt grinding belt, grinding roller or brush roll for this reason.Except the plate mill of having mentioned, this type of surface grinding machine also uses in many other scopes, for example be used for thin plank, door, except hard fiber board and soft fiberboard and glued board or other stratified plastics, also be used for plaster board, cement fibrolite plate, panel, also be used for rubber plate, veneering, solid cork and cane plate, especially also be used for metal removal.Ground finish grinding belt and the grinding roller very violent corresponding to the part comprise that also brush roll all is a worn parts in general sense, and they must be replaced or reprocess after relatively short processing is used.This relates to a kind of wearing and tearing that seem unmodifiable machining tool, although they are than more flexible and hardness, the still wearing and tearing of processed workpiece.
Second class supports or supporting mass, they may be grinding belt or want processed workpiece, as the processing plate.Relate to supporting mass at this, they itself move and have one suitably drive or be positioned at static and the grinding belt roof pressure that is used for slipping over previously at supporting mass to wanting processed workpiece.
*The roller of feed unit has in workpiece accurate task of guiding and will give necessary centripetal force to workpiece for driven roller during by surface grinding machine.Translational speed will irrespectively keep constant as much as possible with at present essential various ground finishs.Driven roller of feed unit has a shaped surface.In order to obtain the so-called annular knurl of the most frequent employing of surface shape.Constitute the spindle nose that protrudes at this by the dark net groove of about 2-3mm of cross, diagonal angle milling.Spindle nose provides a good cooperation with respect to the workpiece that will be moved, and makes it possible to transmit essential power.Slip between roll shaft head and the workpiece produces wearing and tearing on the roller surface.Roller must remain on original state by annular knurl again when keeping being combined with.Because this must remove 1-3mm therefore behind annular knurl again roller have littler diameter, make processed roller no longer may be installed in a row the inside with other roller.The roller of reprocessing in concrete application no longer can be reused.
*Present other condition for the grinding belt touch roll.Grinding belt drives by a grinding belt touch roll.Here also because the great force that must transmit produces certain slip inevitably.This situation is compared aspect dual difficulty more with driven roller of feed unit.The feed rolls of being furnished with spindle nose acts on coarse not grinding work piece, therefore allows roof pressure workpiece to a certain extent.The grinding belt touch roll is essential smooth, can realize the high request of surfacing thus on workpiece by grinding belt.For in any case motivating force can both be delivered to grinding belt, once attempt the surface is carried out modified, although make slick roller also obtain better sticking power and wear resistance.In please person itself once attempt, realize so-called surface tempering by tension force bigger in the plasma spray depositing process.For the known two kinds of methods of plasma spray coating: between the water-cooled nozzle of an anodic polarization and a tungstencathode, light an electric arc for the gas plasma spraying plating.This electric arc (is generally and adds H by plasma gas
2Or the Ar of He) wears thoroughly, constitute high-octane plasma ray thus.Powdered additive is carried by means of special powder conveyor, melts in the plasma ray, and quickening also towards mother metal, plating becomes desired layer.
Second method is the vacuum plasma spraying plating.The chief component of a vacuum plasma spraying plating equipment is about 2 to 3m
3Big vacuum chamber, it is evacuated before process begins.Because high particle speed and good melting condition can make the porosity of layer be lower than 1%.Between the anode of nozzle and workpiece, can light an additional electric arc that passes elm for this method.This passes the function of elm electric arc below attached: pre-heated work pieces, cleaning will be by the surfaces of coating, carry additional energy to be used to melt particle and during spraying plating the modified maintenance underlayer temperature of layer for the best constant.By this technology can non-oxidation the ground spraying plating have the exotic materials (as Ti, Tic or Ta) of high oxygen affinity.
A large amount of grinding belt touch rolls are handled by the vacuum plasma method of spray plating.But do not consider some special situations fully, the plasma spray electroplating method is not in practice through test.Although the plasma coating technology is very expensive still still occur partial defective after certain working time in some cases on the roller surface, make the surface of improvement destroyed again.
*Become known for a kind of almost extremely the third supporting mass of sharp wear situation be grinding belt bearing and reaction abutment.From reaction abutment a high slip ability is directly extended to panel material.A tabular middle layer is set between grinding belt bearing and grinding belt in the prior art, and graphite is rich in this middle layer.After wearing and tearing, can change graphite linings for the grinding belt bearing.Do not consider so-called graphitized mesophase layer, do not relate to general worn parts, because wearing and tearing are small relatively for above-mentioned supporting mass.However sometimes or wholly replace reaction abutment or the grinding again that must take a lot of trouble relatively for the grinding belt touch roll.Repeatedly again after the grinding grinding belt support roll diameter be reduced to the essential new roller that uses.Surface grinding machine must overhaul and change the parts of inefficacy in the longer cycle, as supporting, drive unit etc.Defective is, when each structure unit has different work-ing life, and the then lathe shut-down that may cause not expected of the corresponding maintenance work between two big maintenance circulations.
Summary of the invention
Therefore the objective of the invention is, propose a kind of method and a kind of device, in the maintenance status optimizing that keeps being worth and in supporting mass work-ing life abrasive conditions is improved and made whole grinding machine.
According to method of the present invention, it is characterized in that described supporting mass has a matrix, in thermal spraying craft on this matrix one of the plating thick wear-resisting main stor(e)y of 0.3mm at least, wherein said main stor(e)y is made of the heterosphere with oxidation impurities.Described main stor(e)y preferably has certain porosity.
According to supporting mass of the present invention, it is characterized in that, this supporting mass have a matrix and an outside, in thermal spraying craft the thick main stor(e)y of attrition resistant 0.3mm of plating, the structure of wherein said main stor(e)y has oxidation impurities and is heterogeneous body.Preferred main stor(e)y has certain porosity.Especially adopt metal oxide as oxidation impurities.
Have realized that by the present invention a plurality of parameters are noted in the solution suggestion of described in front spraying plating plasmasphere.An important knowledge is that enough bed thickness is very important.Because under 0.1 to 0.2mm thin layer condition, select a relative softer matrix usually, may be easy to generate surface imperfection.In addition, may produce eccentric rotation.The plasma spray depositing process has advantage on the principle for some application, obtains one and has the very layer of the relative homogeneous of pettiness porosity.But if produce a heterosphere that far is thicker than 0.3mm according to the present invention, verified have a very big advantage.If whole coating has the extremely different oxide particle of size as much as possible, is particularly advantageous.The characteristic on surface does not change yet when constantly wear and tear in the surface, because successive porosity and oxidation particle play effect in bed thickness inside.Irrespectively keep a good not sliding property by porosity and wearing and tearing.If main stor(e)y has enough thickness, multiple grinding does not change surface tissue more yet.Do not consider special situation fully, the plasma spray depositing process does not have above-mentioned advantage.The plasma spray depositing process is very bothersome and expensive in addition.
Present experiment demonstrates extraordinary result, especially for driven roller of feed unit.Rotation roller for high loading is known, may produce too early defective and fracture for the coating with differing materials as the stress consequence that can not understand fully mostly.But do not having to confirm that relevant therewith problem is arranged after the experiment operation for a long time for the present invention.Also to point out this, by each described supporting mass all being had advantage according to thermal spraying craft of the present invention.If the once known critical parameter that are useful on plating, then thermal spraying craft in use is simple relatively.If desired, plating technic even can be adopted by production plant itself, and plasma spray coating or casting technique always are subjected to the restriction of height professional device.
Really can produce new state again and obtain initial dimensional precision with the expense of relative pettiness thus by thermospraying again after the wearing and tearing on supporting mass surface.Thermospraying can realize in the scope of a few tenths of millimeter according to special requirement.After by the processing of thermic arc spraying plating process, supporting mass has new value in principle again.The present invention can form many favourable designs pointed in claim 2 to 8 and 10 to 13.As known as such, in order to improve adhesivity hacking was carried out by sandblast in the surface before thermospraying.
Disclose some new method in addition, matrix needn't be present metallic object again.Matrix can completely or partially be made of plastics, wherein for various situations all before the plating main stor(e)y same in the thermic arc spraying plating process special adaptive adhesion layer of plating.Directly on positive effect, vibration or oscillating characteristic are exerted one's influence by nonmetal, to avoid surface oxidation.
Process with the conduction spraying plating additive of wire-form for arc spraying technology.If matrix is oxidable metallic object, then will be in a limited time, especially three hours behind surperficial hacking are with the interior layer plating that carries out heat.
Thermal spraying craft has huge advantage, can set up an almost bed thickness arbitrarily by shifting metallic particles.Be accompanied by an airflow at this and begin the element of a formation oxidation or the selective oxidation of metal.Coating layer on the outer surface is very coarse after it finishes plating and has the oxidation particle of different size, especially from the teeth outwards.This at first produces anti abrasive and hard surface property.When hard main stor(e)y by wearing and tearing when slowly being removed, then the new oxidation particle of successive works from the teeth outwards in the coating, therefore irrespectively changes ground hardly with wearing and tearing and keeps coarse, sliding and anti abrasive surface property.
Be loaded down with trivial details relatively for the annular knurl of feed unit roller and be subjected to the restriction of the quite long course of processing according to prior art.Relatively large for good material (as ST52) wearing and tearing itself, so the roller of prior art is not attrition resistant.In contrast, arc spraying technology is fast and simply and has a wearing and tearing material far above the sort of steel.At first the hardness of steel is difficult especially for later reprocessing.Especially particularly preferably be, on the matrix after it is by hacking before the plating main stor(e)y in arc spraying technology hot dip cover an adhesion layer, the especially adhesion layer of making by xantal or zinc-base.Adhesion sublayer can have about thickness of 0.1 to 0.3m.Main stor(e)y is with about 0.4-5mm, preferred 0.5 to 2mm thickness plating, and its layer thicknesses is at least 0.2-1mm for grinding belt roller and/or grinding belt bearing behind surfacing.Because therefore adhesion sublayer and main stor(e)y can simplify relevant working process by same technology plating very much.With the prior hacking of roll body, an adhesion sublayer and main stor(e)y are covered in hot dip in arc spraying technology then for the roll body of feed unit.This main stor(e)y is made up of each half chromium steel, especially 13% chromium steel and wear-resisting hard material approximately for the roller of feed unit, wherein produces coarse, sliding and anti abrasive surface on main stor(e)y.
For the grinding belt touch roll with the matrix hacking and in arc spraying technology hot dip cover a) adhesion sublayer plating b then) main stor(e)y.This main stor(e)y preferably is made up of about 13% chromium steel.This surface is covered the back in the main stor(e)y hot dip and is ground in order to produce a slick surface.Fix a slide plate for reaction abutment on a solid supporting mass, this slide plate is furnished with according to wearing layer structure of the present invention.
Description of drawings
Now the present invention is described by means of some embodiment with other details.In example, has supporting mass blacking respectively according to wearing layer structure of the present invention.In the accompanying drawing:
Fig. 1 is a grinding machine that is used for double-side grinding, and it comprises two corase grind levels and two the fine grinding levels with grinding belt;
Fig. 2 is a surface grinding machine with two finishing mill levels and two fine grinding levels, and wherein said fine grinding level has grinding roller or polish-brush;
Fig. 3 is that letter illustrates the driving of grinding belt touch roll according to the view of arrow III among Fig. 1;
Fig. 4 is according to a reaction abutment of the present invention;
Fig. 5 letter illustrates an entire infrastructure with surface grinding machine of lathe and process control;
Fig. 6 represents to be used to handle different process step according to grinding roller of the present invention with programchart;
Fig. 7 is three different cross section pictures of the coating of plating in thermal spraying craft;
Fig. 8 is grinding main stor(e)y and three cross section pictures of grinding main stor(e)y and each material hardness not.
Embodiment
Fig. 1 and 3 illustrates a bigger surface grinding machine 1 with side-view, is used for for example roughing plate 3 of double-side grinding.Corase grind or finishing mill wherein respectively are furnished with two roughing heads 4 and 5 or 4 ' and 5 ' at end face and bottom surface by process section 2 expressions, and they are furnished with grinding belt 6 and 7 or 6 ' and 7 '.For roughing heads 4, grinding belt 6 (6 ') twines one with about 180 ° respectively goes up grinding belt touch roll 8 (8 ') and a grinding belt touch roll 9 (9 ') that drives down.For the second corase grind unit 5,5 ', grinding belt 7,7 ' only twines about 90 °.Each grinding machine head 4,5 has a deep beam 10,10 ' respectively, makes the grinding belt touch roll be bearing in bed piece 11 by them, on 11 '.
Each grinding belt touch roll 9,9 ' has a matrix 18 and is bearing on the bearing 13 by an axle journal 12 according to Fig. 1 and 3, drives (Ubertrieb) 14 by a corresponding pulleying and is driven by suitable drive-motor 15 or 16 respectively.Can 50 to 150 horsepowers motor for common scantlings of the structure.Grinding belt touch roll 9,9 ' is bearing on bed piece 11 or 11 ' downward or upward.On the bed piece 11 ', support column can be made of the hydro-cylinder with piston 17 ' under last bed piece 11 was positioned at by Height Adjustable support column 17.Height Adjustable support column 17 at first is used to regulate two grinding belt touch rolls 9, the wavelength width of a slit between 9 '.Surface grinding machine has a guiding and feed unit 20 and has one second guiding and feed unit 21 at the plate output terminal at the plate input terminus in addition.Two guiding and feed unit 20 or 21 are made up of two pairs of guide rollers 22 respectively, and wherein at least one roller of each guiding and feed unit can be made of driven feed rolls 23.Guiding and feed unit 20 or 21 are gone up the secondary 24 and lower steering rolls secondary 25 of guide roller by one and are formed, wherein corresponding guide roller 22 or accordingly guide roller 23 provide stable vertical and horizontal and lead.For starting for the first time or must in height accurately adjusting guide roller pair 24 and 25 than long running after the time, so that the plate guiding is extended corresponding to average grinding surface 26 accurate plane parallel ground and is positioned on the optimum position for two Grinding Contact rollers.Each guide roller pair 24 or 25 is accurately regulated by regulatory element 27 for this reason.
Comprise feed unit 20 and 28 according to Fig. 1 with feed section and this feed section that 29 expressions are used for the roughing plate.Represent feed rolls respectively with the roller that black is filled, it can have the wear-resisting and coarse main stor(e)y of a plating in thermal spraying craft according to the present invention.It is important in this that, allow the coarse processing of feed rolls to stay cutter trade fully, because these cutter trades can be removed by corase grind until roughly grind the second time.For the requirement of supply unit 22,30 and 31 is other sample fully, and these unit can be made of rubber rollers.Brace with label symbol 40 is represented the process section of fine grinding.This fine grinding body 41 and 42 or 41 ' in Fig. 1,42 ' has a Grinding Contact level 43 or 43 ' respectively.
The fine grinding level has two fine grinding rollers 44 or polish-brush 45 in Fig. 2.
Fig. 4 illustrates a reaction abutment 50 with supporting mass 54, and supporting mass has a slide plate fixed thereon 51, and this slide plate is fixed on the reaction abutment by unshowned clamp mechanism.The main stor(e)y 52 (thick black line) that this slide plate 51 has the wear-resisting of a plating in thermal spraying craft and is ground.Main stor(e)y also can for example be plated on the profile, and profile has the graphite linings according to prior art.Since more small mainly due to the main stor(e)y that workpiece the caused damage danger that enters, may be just enough so have a main stor(e)y plane plating that enters an inclined-plane 53 and a minimum rounding.
Fig. 5 letter illustrates the favourable detection, control and the regulating mechanism that are used for the whole processing steps of grinding according to WO00/35628.A finishing bistrique 4,5 and fine grinding 41,42 is shown.Workpiece 3 be expressed as a single face from top grinding, planar plate 3.Plate 3 has a unprocessed thickness Dr before ground finish, first or finishing mill after have a thickness D
KAnd after fine grinding, has a thickness D
FDr and D
KBetween thickness difference be 0.4mm for example, be equivalent to grinding and remove 0.4mm.Be positioned at percentum millimeter for fine grinding grinding removal amount.Behind the finishing mill thickness being shown detects or thickness monitor device D
SAs the ground finish monitoring device.Obtain thickness of slab D by two test rollers
KAnd corresponding signal is passed through data bus Bus continue to transmit.Finishing bistrique 4 and fine grinding head are bearing in the surface grinding machine S with the thick line symbology
TMOn the lathe bed.With H
PRepresent a height location signal pick-off simplifiedly, can determine desired grinding removal amount by it.In any case in order all to reach desired grinding removal amount, repeatedly garden burnet is sent workpiece or plate 3.Correspondingly being bearing in one or two conveying axis on the lathe and drive shaft is responsible for by the grinding conveyer line accurate and stable garden burnet and send workpiece.The translational speed of plate 3 is by velocity sensor V
PSDetermine.Can record grinding belt speed V for finishing bistrique 4
KBS, drive-motor electric current A
KAnd can record A for fine grinding 41
FThe height location of grinding mechanism can be accomplished in several ways in practice, as what mentioned, by whole bed piece or for example by each grinding machine head or finishing bistrique H
KSWith a fine grinding FH
SOn special adjustment mechanism realize.Above-mentioned signal can use for control and guide surface by data bus, and this plane is by three primary parts, Machine-Tool Control SPS, an instruction and receive reception memorizer and a multivariable control device of importing and form.
As shown in Figure 5, just attempted adopting monitoring technique at present.Relevant parameters must irrespectively be in monitoring down with the automatization measure.The very important fact is to remove the surface that not only must obtain a good grinding but also must obtain a dimensional precision by relatively large grinding under normal conditions by surface grinding machine.Surface quality and the thickness error that will reach, both are of equal importance.When the corresponding processing for element or supporting mass guaranteed enduringly with required dimensional precision and required surface quality, then both can realize economically best.
Be positioned at grinding belt touch roll 9 opposites for reactive force roller 32 of embodiment shown in Figure 5, this reactive force roller is the same with the grinding belt touch roll to have one according to wearing layer structure of the present invention.
Fig. 6 illustrates grinding belt touch roll 9,9 ' with different processing step A-E.
The unprocessed state of the grinding belt touch roll when A represents the end of roller production process.Roller is produced in enormous quantities and is had desired dimensional precision, and wherein the surface can change by environmental influence.On the contrary, if protective layer of plating, then this protective layer must be abolished in thermal spraying craft in advance fully.
B illustrates the preparation that the grinding belt touch roll is used for thermospraying.Signifying the metal micro white phenomenon on a smooth metal surface after surface finishing in matrix 18 lip-deep bright positions.For the cylindrical surface that improves the adhesivity matrix by the sandblast hacking, this represents by low key tone.Sand is represented sandblast.
C is as xantal or for example zinc-base adhesion layer of next processing step by one 0.1 to 2 mm thick of thermal spraying craft plating.Thermal spraying craft itself is known.Letter illustrates wire craft in Fig. 6.A spray ferry 60 has the wire rod conveying roller 61 and 62 of two machineries, and they are transported to an electrically-ignited position 65 continuously with a wire rod 63 or 64 respectively.The material of two wire rods is by the electrically-ignited heat melts on ignition position.Two kinds of materials are similar to spray paint ground plating by primary air beam 66 and secondary air beam 67 as spray form beam 68 as particle mixed closely, atomizing in ignition position.As shown in arrow 69, the grinding belt touch roll rotates continuously during thermospraying.Axial motion shown in the arrow 70 or can realize or vertically move realization by the corresponding sports of grinding belt touch roll 9,9 ' on rotating shaft rotation 71 directions by spraying plating 60 controlled.Can select desired layer thickness by corresponding mobile and plating time, this thickness can be 0.1 to 0.2 millimeter for adhesion layer.Behind the thin adhesion layer of plating, keep fully the surfaceness that produces by sandblast and even can increase roughness according to coating technology, therefore the plating for main stor(e)y produces an ideal adhesion sublayer.
The hot dip that D illustrates main stor(e)y is covered.The plating of this process and adhesion layer is identical, therefore relates to this process.Material for main stor(e)y wire rod 63 ', 64 ' comprises that equally bed thickness is different with adhesion layer usually.A unessential viewpoint is, for adhesion layer with select the material (Fig. 7 and 8) of different hardness for main stor(e)y.
E illustrates the grinding belt touch roll that processes of devoting oneself to work and using.Symbolically represent to produce fine grinding with SF as last processing step.By get back a kind of gloss of metal and therefore have bright color of desired fine grinding surface.
Fig. 7 illustrates one with the sectional view of different ratio of enlargement and is slightly larger than the thick layer topology example of 0.3mm.In all three sectional views, very clearly see coarse surface (upper limb) and heterogeneous porous organization.Part dark-coloured and Dark grey is represented more or a large amount of less oxidation impurities, and they are important for wear resistance.People recognize that surfaceness is positioned on about 0.1mm order of magnitude.The thickness range the inside of the whole coating layer of the plasma spray depositing process of the prior art that the roughness of this 0.1mm had been mentioned above being positioned at.
Fig. 8 left side illustrates two different enlarged views with a tetragonal density bullet with picture, and mark is represented the hardness of relevant layers.Represent qualitatively at this.Quadrangle is big more, and material is soft more.
-matrix is for example made by ST52 and is had a medium sized quadrangle.
-thin adhesion layer is made by xantal so is represented soft by an obvious bigger quadrangle.
-main stor(e)y is made by 13% chromium steel, and is therefore harder than two kinds of other materials.
Relate to a Grinding Contact roller 9,9 ' for the example according to Fig. 8, it must fine grinding after thermospraying, and this represents with SF.People recognize, must remove about main stor(e)y of 0.1 to 0.2mm at this.The material of matrix is with label symbol 75 expressions, and adhesion layer is with 72 expressions, and the grinding surface that main stor(e)y processes with 73 expressions is with 74 expressions.Coarse point and spot are oxide particles.
Claims (13)
1. method that is used for improving surface grinding machine (1) supporting mass abrasive conditions, especially at least the driven roller (23) and/or the grinding belt touch roll (9 that are used for feed unit (20), the supporting mass of 9 ') and/or reaction abutment (50) and/or reactive force roller (32), it is characterized in that, described supporting mass has a matrix (18,51), in thermal spraying craft on this matrix wear-resisting main stor(e)y (73) that 0.3mm is thick at least of plating, wherein said main stor(e)y (73) is made of the heterosphere with oxidation impurities.
2. the method for claim 1 is characterized in that, described main stor(e)y (73) is also preferably had certain porosity by plating in arc spraying technology.
3. method as claimed in claim 1 or 2 is characterized in that, hacking is especially carried out by sandblast in order to improve adhesivity before covering carrying out hot dip in the surface of described matrix (18,51).
4. as each described method in the claim 1 to 3, it is characterized in that, described matrix (18,51) be an oxidable metallic object and in the time of a qualification, especially 3 hours behind surperficial hacking with interior carry out heat the layer plating.
5. as each described method in the claim 1 to 4, it is characterized in that, go up after it is by hacking with arc spraying technology plating main stor(e)y (73) adhesion layer (72) that especially constitutes on the plating in thermal spraying craft before at described matrix (18,51) by xantal or zinc-base material.
6. as each described method in the claim 1 to 5, it is characterized in that, for the roller (23) of feed unit, with roller matrix hacking and in thermal spraying craft
A. an adhesion sublayer of plating (72) and
B. a main stor(e)y (73),
Wherein said main stor(e)y (73) is by about each half chromium steel, especially about 13% chromium steel and attrition resistant hard material is formed and obtain coarse, cunning an and anti abrasive surface by main stor(e)y (73).
7. as each described method in the claim 1 to 5, it is characterized in that, for grinding belt touch roll (9,9 '), with matrix (18) hacking and in thermal spraying craft
A. an adhesion sublayer of plating (72) and
B. main stor(e)y (73),
Wherein said main stor(e)y (73) preferably is made up of about 13% chromium steel and is covered main stor(e)y (73) back in hot dip should the surface in order to obtain slick surfacing.
8. as each described method in the claim 1 to 5, it is characterized in that, for reaction abutment (50), with matrix (51) hacking and in thermal spraying craft
A. an adhesion sublayer of plating (72) and
B. main stor(e)y (73), wherein said main stor(e)y (73) be anti abrasive and in order to obtain a slick surface is ground and constitute layer structure itself in order to obtain a high slip ability.
9. one is used for surface grinding machine (1) plate and grinding belt (6,7) supporting mass, driven roller (9) of this supporting mass or formation feed unit and/or formation grinding belt touch roll (8,9) and/or constitute reaction abutment (50) and/or reactive force roller, it is characterized in that, described supporting mass has a matrix (18,51) and the attrition resistant at least main stor(e)y (73) that 0.3mm is thick outer field, plating in thermal spraying craft, wherein the structure of main stor(e)y (73) has oxidation impurities and is heterogeneous body.
10. supporting mass as claimed in claim 9, it is characterized in that, driven roller (9) of described at least feed unit has one by plastics or metal matrix (18), also have an adhesion sublayer (72) and a main stor(e)y (73), wherein said main stor(e)y (73) is by each half chrome steel alloy approximately and wear-resisting hard material is formed and it be coarse on the surface that thermal spraying craft obtains, not cunning and anti abrasive.
11. supporting mass as claimed in claim 9, it is characterized in that, described grinding belt touch roll (8,9) and/or reaction abutment (50) and/or reactive force roller (32) have one by plastics or metal matrix (51), also have an adhesion sublayer and a main stor(e)y, wherein said main stor(e)y (73) preferably is made up of chromium steel, and this main stor(e)y constitutes slick surface by a grinding process.
12. supporting mass as claimed in claim 9 is characterized in that, described main stor(e)y (73) be heterogeneous body and have a vesicular structure.
13. as each described supporting mass in the claim 9 to 12, it is characterized in that, described adhesion sublayer (72) has about thickness of 0.1 to 0.2mm and plating main stor(e)y (73) thickness about 0.4 to 5mm, wherein be at least 0.3 to 4mm for grinding belt touch roll (8,9) and/or reaction abutment (50) and/or reactive force roller (32) described bed thickness behind surfacing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH678/01 | 2001-04-11 | ||
| CH678/2001 | 2001-04-11 | ||
| CH6782001 | 2001-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1509221A true CN1509221A (en) | 2004-06-30 |
| CN1246122C CN1246122C (en) | 2006-03-22 |
Family
ID=4528276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028080300A Expired - Lifetime CN1246122C (en) | 2001-04-11 | 2002-04-09 | Support bodies and method for improving wear and tear on support bodies in large-scale grinders |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20040147207A1 (en) |
| EP (1) | EP1377411B1 (en) |
| CN (1) | CN1246122C (en) |
| AT (1) | ATE355932T1 (en) |
| DE (1) | DE50209658D1 (en) |
| WO (1) | WO2002083362A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961925A (en) * | 2010-10-12 | 2011-02-02 | 健伦精密机械(中国)有限公司 | Improved 15-70 degree steel cord fabric cutting machine roller |
| CN102179762A (en) * | 2011-04-06 | 2011-09-14 | 王圣贤 | Chopping board polishing machine |
| TWI634016B (en) * | 2016-10-11 | 2018-09-01 | 雷立強光電科技股份有限公司 | Forming method of alignment layer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2571655B1 (en) * | 2010-05-18 | 2014-04-23 | Marposs Societa' Per Azioni | Method and apparatus for optically measuring by interferometry the thickness of an object |
| CN107699842B (en) * | 2017-09-23 | 2019-08-13 | 广东省新材料研究所 | A kind of high-densit tungsten carbide coating roller manufacturing method of solvent-free composite machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3779745A (en) * | 1969-02-26 | 1973-12-18 | Aerojet General Co | Carbide alloys suitable for cutting tools and wear parts |
| US3918137A (en) * | 1973-07-05 | 1975-11-11 | Ford Motor Co | Wear-resistant coating for rotary engine side housing and method of making |
| JPS5332833A (en) * | 1976-09-08 | 1978-03-28 | Hitachi Cable | Zinccaluminum metallization wire material |
| FR2539325A1 (en) * | 1983-01-17 | 1984-07-20 | Armotek Ind Inc | Powder feed device for applying wear-resistant coatings to objects |
| FI70273C (en) * | 1985-01-09 | 1986-09-15 | Valmet Oy | SYNTHETIC PRESS RELEASES FOR THE FRAMEWORK OF THE FRAMEWORK |
| DE8814128U1 (en) * | 1988-11-11 | 1989-03-09 | Reinhold Heß GmbH & Co KG Maschinenbau, 7460 Balingen | Sanding shoe for a surface grinding machine |
| DE4320069A1 (en) * | 1993-06-17 | 1995-01-12 | Roland Man Druckmasch | Method and device for repairing cylinders of printing machines |
| US5679167A (en) * | 1994-08-18 | 1997-10-21 | Sulzer Metco Ag | Plasma gun apparatus for forming dense, uniform coatings on large substrates |
| US5744777A (en) * | 1994-12-09 | 1998-04-28 | Northwestern University | Small particle plasma spray apparatus, method and coated article |
| EP0902099A1 (en) * | 1997-09-10 | 1999-03-17 | Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Thun | Wear and corrosion resistant surfaces |
| US6376091B1 (en) * | 2000-08-29 | 2002-04-23 | Amorphous Technologies International | Article including a composite of unstabilized zirconium oxide particles in a metallic matrix, and its preparation |
-
2002
- 2002-04-09 DE DE50209658T patent/DE50209658D1/en not_active Expired - Lifetime
- 2002-04-09 EP EP02708125A patent/EP1377411B1/en not_active Expired - Lifetime
- 2002-04-09 CN CNB028080300A patent/CN1246122C/en not_active Expired - Lifetime
- 2002-04-09 AT AT02708125T patent/ATE355932T1/en active
- 2002-04-09 WO PCT/CH2002/000198 patent/WO2002083362A1/en active IP Right Grant
- 2002-04-09 US US10/474,623 patent/US20040147207A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961925A (en) * | 2010-10-12 | 2011-02-02 | 健伦精密机械(中国)有限公司 | Improved 15-70 degree steel cord fabric cutting machine roller |
| CN102179762A (en) * | 2011-04-06 | 2011-09-14 | 王圣贤 | Chopping board polishing machine |
| CN102179762B (en) * | 2011-04-06 | 2013-03-27 | 浙江金圣竹木有限公司 | Chopping board polishing machine |
| TWI634016B (en) * | 2016-10-11 | 2018-09-01 | 雷立強光電科技股份有限公司 | Forming method of alignment layer |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1377411A1 (en) | 2004-01-07 |
| DE50209658D1 (en) | 2007-04-19 |
| US20040147207A1 (en) | 2004-07-29 |
| CN1246122C (en) | 2006-03-22 |
| ATE355932T1 (en) | 2007-03-15 |
| EP1377411B1 (en) | 2007-03-07 |
| WO2002083362A1 (en) | 2002-10-24 |
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