CN101048259B - Grinding material and its preparation method - Google Patents
Grinding material and its preparation method Download PDFInfo
- Publication number
- CN101048259B CN101048259B CN2005800366089A CN200580036608A CN101048259B CN 101048259 B CN101048259 B CN 101048259B CN 2005800366089 A CN2005800366089 A CN 2005800366089A CN 200580036608 A CN200580036608 A CN 200580036608A CN 101048259 B CN101048259 B CN 101048259B
- Authority
- CN
- China
- Prior art keywords
- abrasive material
- matrix
- abrasive
- backing
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to an abrasive product wherein abrasive grains are embedded in a matrix which comprises a cell-free, duroplastic binding agent for the abrasive grains, and wherein a contact surface which is provided with abrasive grains and which is used to abrade a workpiece is embodied. According to the invention, the matrix is elastically flexible such that the abrasive grains which cover the contact surfaces are pressed into the matrix during the abrasive step. The abrasive grains are distributed in the matrix in such a manner that an additional contact surface covering the abrasive grains is released when the matrix in used in the diagonal direction for the original contact surface provided with abrasive grains. The abrasive grains are distributed in the matrix in such a manner that they are diagonal and also parallel on the respective contact surface of the abrasive counter to the reverse force of the matrix. Said matrix is joined in a flexible manner to the base, and is bound directly via the binding agent contained in the matrix.
Description
Technical field
Usually, the present invention relates to a kind of abrasive material, wherein, abrasive grain is embedded in the adhesive stroma, and wherein for grinding work-piece the contact surface that is covered by abrasive grain is set.
Background technology
Since beginning to develop such abrasive material, people just know the grinding composite that will prepare homogeneous texture.For this purpose, use at first inelastic adhesives, and elastic compliant adhesive (elastically compliant binder) has used decades.Using an example of the grinding composite of inelastic adhesives is grinding stone.The example of using the grinding composite of elastic compliant adhesive is densified composite, for example with cubical form or form other abrasive material piece (abrasive compact) of emery wheel.Known existing porous also has a non-porous embodiment in this respect.These known abrasive material piece past are the whole foundry goods that the successful record of proof is put into practice more than 40 years that remain now by the applicant.
So far, because they are as the structure of abrasive material piece, these known use abrasive grains are made normally with the abrasive material of elastic compliant adhesive, and need not in abrasive material in conjunction with material.On the contrary, for the abrasive material with inelastic adhesives, the term in this part " abrasive material (backed abrasives) that backing is arranged " is in decades all in their kind.
The present invention also is particularly related to abrasive material, and this abrasive material has and the porous corresponding non-porous particularly non-foam adhesive of foam glue particularly.
With reference to German plastics handbook (German Plastics Handbook) " Saechtling Kunststoff Taschenbuch, 28
ThEdition, by Karl Oberbach, Verlag Hansa publishes, see 555 pages, Fig. 4 .18 ", no matter where relate to obviously PUR(polyurethane); still about the adhesive of all other foaming, usually between foamed material and non-porous adhesive, create a difference.
In this case, the basic especially non-porous PUR type of the present invention belongs to group:
Solid polyurethane
Casting and elastomer that spray
Thermoplastic elastomer (TPE)
Rubber
Originally the elastic compliant piece of quoting in the prior art and " solid " composite in the grouping of quoting are respectively special cast elastomeric, and abrasive material of the present invention also uses special cast elastomeric.
When adhesive is made into foam glue, by the material of application of air physical mechanical ground foaming and by creating a difference between the material that uses the blowing agent chemical blowing.
The abrasive material with non-porous adhesive for the present invention relates to is characterized in that, by corresponding curing process that operation is carried out neither physics neither chemistry the target foaming.It is to expand in order as much as possible to avoid that target substitutes, although in fact always can not avoid the formation of remaining porous fully.In Here it is the abrasive product that why specific design is made being described as market at least, preferably with reference to the real and theoretical density than practice.
In order to make the adhesive foaming, by PUR mode is as an example illustrated this comparison best.When German plastics handbook " Saechtling Kunststoff Taschenbuch, 28 that reading is quoted
ThEdition, by Karl Oberbach, Verlag Hansa publish, and see 554 pages and following etc. ", the foam (30-300kg/m of moulding
3), rigid foams (30-90kg/m
3) and open celled foam (20-40kg/m
3) between create a difference.
According to the present invention, used particularly to have the 800kg/m that is not less than that has fully described minimum porosity
3The PUR of density.
Wherein abrasive composites has shown porous particularly the adhesive that backing is arranged of the feature of foam glue is open in for example German patent DE 3114001 A1 and DE 1907983 A1.
In a word, the present invention be more particularly directed to abrasive material, contain the composite of the resinoid of abrasive grain.At this, the present invention is used for the thermosetting plastics of the adhesive of composite abrasive grain by known conduct, and polyurethane for example is although rubber also can be used for the present invention as the adhesive that is used for abrasive grain.
An example of the thermoplastic adhesives that are used for abrasive grain of pyroxylin (colloxyline) form of the plasticising among the Deutsche Bundespatent DD 106585A, be different from the thermosetting plastics that uses in the scope of the invention, also need to use plasticizer with ratio 1:1 or 0.8:1 about equally.The filling ratio that also needs to control abrasive material is for grinding at least 60 % by weight of abrasive powders in the composite, surpasses 80% with respect to the ratio of abrasive powders and regarded as by way of parenthesis bonding grinding composite is harmful to.The thickness that ad hoc proposal is arranged to the thin layer of abrasive material when measuring perpendicular to backing (backing) with this known grinding composite is that 10 μ m are to the grinding composite of maximum 40 μ m.
For the purpose of completeness, also with reference to how external known abrasive material, but therefore conclude the surface of the work profile (Deutsche Bundespatent DD 255903A1) that is suitable for for grinding for the kneading adhesive of abrasive grain just.
In the technology development process as the abrasive material that comprises at present process velocity, for example rotation or the swinging operation in grinding tool or grinding machine side all becomes faster all the time, the even abrasive material with elastic compliant adhesive that produces the in decades acceleration that comprises centrifugal force and the tractive force that the impotentia opposing produces that becomes, need not special measurement, the result is damaged too early by the abrasive substrate that the elastic compliant adhesive forms.One of these special measurements of using with emery wheel comprise the size of the abrasive coating of the solid core that measures emery wheel, make abrasive material more and more thinner, produce relatively short valid expiration date.For the annular abrasion band, almost just considered before half a century with bar shaped and grind the composite coating as the endless belt of backing, submissive foaming by polyurethane forms the matrix that contains abrasive grain in each case, these abrasive grains are fixed to (see BP GB B 821929, particularly the 2nd page the 3rd is walked to the 7th row) on the endless belt in the bonding mode of separating thus., owing to must stop and grind the bonding of composite and relevant separation, the main points of this invention make irrational complicated approach become necessity, the reason that Here it is can not get the nod in practice in producing continuously.
Grind for the corrosivity of routine, usually always by inelastic adhesives for example the mode of initial hide glue and present artificial resin directly abrasive grain is adhered on the backing, the size of described abrasive grain is that as required result selects.This backing has absorbed tractive force and the centrifugal force that results from the machine.Under this regular situation, abrasive grain only is attached on the backing with independent layer, and gives prominence to from the surface of the abrasive material that contact with workpiece by the abrasive material jut.During loss, adhesive contacts with friction of workpiece these juts immediately in grinding, and the efficient of grinding significantly descends, and load the adhesive on wear of work surface be damaged.
Be arranged in equably by the abrasive material in the radiation curing inelastic adhesives matrix on the bonding backing of adhesive for abrasive grain, this matrix is divided into the matrix body that leaves mutually the space of a plurality of dispersions, backing has been played the effect (Deutsche Bundespatent T2 69210221) that increases the cross section that is parallel to this backing in the direction with workpiece contact free surface.
In other words, in the corrosion grinding abrasive part of the abrasive grain that protrudes from contact surface, the size of less abrasive grain makes the polishing of wear surface all better.In this respect, need to distinguish comprise no longer basically that corrosivity is ground and the peak on surface to the height of paddy reduces, with honing or grind comparable polishing.
For the use of modern grinding machine, usually provide the abrasive material of abrasive material non-woven fleece as polishing now.From German patent DE-T2 69609709(claim 4 particularly) can see that a plurality of abrasive grains are adhered on the loose fabric of the opening of organic fiber through adhesive systems.The polishing of carrying out therewith produces on processed surface and scabs and crooked or fracture.The defective of workpiece polished surface, for example scratch and scratch are only covered up, and do not remove veritably.
Summary of the invention
1, a kind of abrasive material, wherein, abrasive grain (8) is dispersed in the matrix (4), this matrix (4) contains the non-foam and non-porous resinoid (6) that is useful on described abrasive grain (8), and the contact surface (10) that wherein, is covered by abrasive grain (8) designs for grinding work-piece;
It is characterized in that the combination of following characteristics:
(a) the elastic compliant degree of described matrix (4) is pressed in the matrix (4) abrasive grain (8) that covers contact surface (10) when grinding;
(b) described abrasive grain (8) is dispersed in the matrix (4), so that discharged the contact surface (10) of the more deep layer that is covered by abrasive grain (8) perpendicular to the consumption of the matrix (4) of the contact surface (10) that is covered by abrasive grain (8) at first;
(c) described abrasive grain (8) is dispersed in the matrix (4), so that they are obedient to the screen resilience perpendicular and parallel to the matrix (4) on the corresponding contact of abrasive material surface (10);
(d) matrix (4) is attached on the flexible backing (2);
(e) matrix (4) directly is attached on its flexible backing (2) by contained adhesive (6) in the matrix (4).
2, according to the 1st described abrasive material, it is characterized in that, the density of the adhesive (6) in the described matrix (4) be not less than described adhesive (6) material proportion 90%.
According to the 1st described abrasive material, it is characterized in that 3, the elasticity of described matrix (4) is not less than 35%.
According to the 3rd described abrasive material, it is characterized in that 4, the elasticity of described matrix (4) is not less than 40%.
According to the 1st described abrasive material, it is characterized in that 5, the elasticity of described matrix (4) is not more than 55%.
According to the 5th described abrasive material, it is characterized in that 6, the elasticity of described matrix (4) is not more than 50%.
According to the 1st described abrasive material, it is characterized in that 7, the hardness of described matrix (4) is not less than 40 Shore A.
According to the 7th described abrasive material, it is characterized in that 8, the hardness of described matrix (4) is not less than 45 Shore A.
According to the 1st described abrasive material, it is characterized in that 9, the hardness of described matrix (4) is not higher than 75 Shore A.
According to the 9th described abrasive material, it is characterized in that 10, the hardness of described matrix (4) is not higher than 70 Shore A.
According to the 1st described abrasive material, it is characterized in that 11, the ultimate elongation of described matrix (4) is not less than 150%.
According to the 11st described abrasive material, it is characterized in that 12, the ultimate elongation of described matrix (4) is not less than 170%.
According to the 1st described abrasive material, it is characterized in that 13, the flexural rigidity of the described backing (2) that the anglec of rotation of the detection width by 15mm, the detection spacing of 20mm and 15 ° detects is not higher than 5000 milli oxen.
14, according to the 1st described abrasive material, it is characterized in that, be not less than 200 μ m perpendicular to the thickness of the described matrix of described backing (2).
15, according to the 14th described abrasive material, it is characterized in that, be not less than 500 μ m perpendicular to the thickness of the described matrix of described backing (2).
16, according to the 15th described abrasive material, it is characterized in that, be not less than 1000 μ m perpendicular to the thickness of the described matrix of described backing (2).
17, according to the 1st described abrasive material, it is characterized in that, be not higher than 2500 μ m perpendicular to the thickness of the described matrix of described backing (2).
18, according to the 17th described abrasive material, it is characterized in that, be not higher than 1500 μ m perpendicular to the thickness of the described matrix of described backing (2).
According to the 1st described abrasive material, it is characterized in that 19, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is less than or equal to 80 volume %.
20, according to the 19th described abrasive material, it is characterized in that, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is less than or equal to 60 volume %.
According to the 1st described abrasive material, it is characterized in that 21, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is more than or equal to 20 volume %.
22, according to the 21st described abrasive material, it is characterized in that, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is more than or equal to 40 volume %.
According to the 1st described abrasive material, it is characterized in that 23, described abrasive grain (8) is of a size of 2-2000 μ m.
According to the 23rd described abrasive material, it is characterized in that 24, described abrasive grain (8) is of a size of 70-540 μ m.
According to the 24th described abrasive material, it is characterized in that 25, described abrasive grain (8) has size P36, P60, P120 and the P240 according to the FEPA standard.
According to the 1st described abrasive material, it is characterized in that 26, the Shore hardness of described abrasive material in the Durometer A hardness scope is 60 ° of-90 ° of Shore A.
According to the 1st described abrasive material, it is characterized in that 27, described adhesive (6) contains polyurethane.
According to the 27th described abrasive material, it is characterized in that 28, described adhesive (6) is made by a kind of described polyurethane.
According to the 1st described abrasive material, it is characterized in that 29, described adhesive (6) contains rubber.
According to the 29th described abrasive material, it is characterized in that 30, described adhesive (6) is made by a kind of described rubber.
According to the 1st described abrasive material, it is characterized in that 31, described adhesive (6) contains polysulfide.
According to the 31st described abrasive material, it is characterized in that 32, described adhesive (6) is made by a kind of described polysulfide.
According to the 1st described abrasive material, it is characterized in that 33, described adhesive (6) contains acrylate.
According to the 33rd described abrasive material, it is characterized in that 34, described adhesive (6) is made by a kind of described acrylate.
According to the 1st described abrasive material, it is characterized in that 35, described adhesive (6) is filled.
According to the 1st described abrasive material, it is characterized in that 36, except described adhesive (6), described matrix (4) also contains at least a filler and/or at least a dyestuff and/or at least a additive.
37, according to the 35th or the 36th described abrasive material, it is characterized in that, provide kaolin as filler.
38, according to the 35th or the 36th described abrasive material, it is characterized in that, provide at least a foam inhibitor as additive.
39, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that described abrasive grain (8) contains at least a carborundum and/or at least a silica.
According to the 39th described abrasive material, it is characterized in that 40, described abrasive grain (8) is comprised of at least a carborundum and/or at least a silica.
41, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that described abrasive grain (8) is comprised of at least a aluminium oxide and/or at least a aluminium oxide mixed crystal.
42, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that at least a portion of described abrasive grain (8) is comprised of at least a carbide alloy.
According to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that 43, the abrasive grain (8) that arranges close to described backing (2) relies on the described backing (2).
44, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that, the described matrix (4) that comprises its abrasive grain (8) is divided into and is dispersed in the upper and mutual spaced several matrix bodies (4a) of identical backing (2), and described matrix body (4a) has consistent cross section in the direction perpendicular to initial contact surface (10) or backing (2).
According to the 44th described abrasive material, it is characterized in that 45, described matrix body (4a) has the polygon cross section that is parallel to backing (2), and grinding direction (16) arrangement that intermeshes.
According to the 45th described abrasive material, it is characterized in that 46, described polygon cross section is hexagon, and with two angular orientations on two angles on the described grinding direction (16) or the direction opposite with described grinding direction (16).
According to the 44th described abrasive material, it is characterized in that 47, described matrix body (4a) has the circular cross section that is parallel to described backing (2), and grinding direction (16) arrangement that intermeshes.
48, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that described backing (2) is comprised of woven fabric, knitted fabric, film and/or layer of filament.
According to the 48th described abrasive material, it is characterized in that 49, described backing (2) is by natural fiber or staple fibre or their compositions of mixtures.
According to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that 50, described backing (2) is intrinsic elastic compliant.
According to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that 51, described backing (2) has the quality polishing.
52, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that abrasive construction is the endless belt.
53, according to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that abrasive construction is flat material.
According to the 53rd described abrasive material, it is characterized in that 54, described abrasive construction is for being used for the bar of swing actuator.
According to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that 55, abrasive construction is for being used for pan or the bow of swing actuator.
According to the described abrasive material of any one in the 1st, the 35th and the 36th, it is characterized in that 56, abrasive construction is for the abrasive disk of the pan that is used for rotating driver, segmentation, laminated grinding point or take turns.
57, the manufacture method of the described abrasive material of any one in a kind of 1-56 item, it is characterized in that, at first described abrasive grain (8) is sneaked into and have still in the matrix (4) of low viscous adhesive (6), then this mixture is applied to described backing (2).
58, the manufacture method of the described abrasive material of any one in a kind of 1-56 item, it is characterized in that, will be simultaneously still at first be applied on the matrix (4) on the backing (2) for low viscous adhesive (6), then be applied on the abrasive grain (8), so that abrasive grain (8) sinks in the described backing (2), described adhesive (6) still is low viscosity simultaneously.
According to the manufacture method of the 58th described abrasive material, it is characterized in that 59, described abrasive grain (8) is scattered in the described matrix (4), described adhesive (6) still is low viscosity simultaneously.
According to the manufacture method of the 58th described abrasive material, it is characterized in that 60, all be applied on the matrix (4) of backing (2) before with several approach described abrasive grain (8) being administered to, adhesive (6) still is low viscosity simultaneously.
According to the manufacture method of the 57th described abrasive material, it is characterized in that 61, matrix (4) and the abrasive grain (8) that will contain described adhesive (6) are administered on the backing (2) with the multiple coating method together.
According to the manufacture method of the described abrasive material of any one in the 58-60 item, it is characterized in that 62, matrix (4) and the abrasive grain (8) that will contain described adhesive (6) are administered on the backing (2) with the multiple coating method respectively.
63, according to the manufacture method of the described abrasive material of any one in the 57-61 item, it is characterized in that, use macking technique to arrange apart from one another by the matrix body (4a) of arranging at backing (2).
64, the manufacture method of the described abrasive material of any one in a kind of 44-47 item is characterized in that, uses macking technique to arrange apart from one another by the matrix body (4a) of arranging at backing (2).
The purpose that provides by the 1st the described this abrasive material of preorder is provided, this abrasive material is the article that are suitable as for the reasonable amount preparation, as the polishing tool on the modern grinding machine, the high consistency of long-term service life and quality of finish is combined.
This purpose is to realize by the abrasive material with feature of the 1st.
In abrasive material according to the present invention, when contact surface new, that covered by abrasive grain is provided, when the covering epidermis by the release matrix adhesive must be exposed in the final stage of preparation process, produced the part abrasive grain that protrudes from initial first contact surface of workpiece.When realizing polishing, these ledges of abrasive grain are pressed into fully or almost completely are pressed onto in the matrix, have therefore basically removed the corrosion abrasive action to workpiece.Avoid or minimized at least the load of the wear surface of workpiece, because when covering the abrasive grain loss of matrix, the adhesive that had stayed around previous does not carry out load with wear of work surface and contact (loading contact), but as the wearing and tearing of rubber.In this set, abrasive grain is like this loss not, but little by little drops from current contact surface.This abrasive grain loss is from the depths cyclic regeneration of matrix, and therefore, during polishing, no matter the consumption of matrix, the quality of polishing still is consistent.In fact, this in addition involve whole consumption of the matrix that is connected with backing.In this set, backing has been guaranteed consistent crudy, no matter matrix is depleted to any degree, even at very high machined parameters, for example rotary speed, rate of bending or vibration rank, only several procedure of processings just can realize of the present invention rational and have a manufacturing of cost-benefit abrasive material simultaneously.
Also wanting ben be that abrasive material of the present invention is combined with modern polishing machine and can be realized improvement above possible so far.Therefore, compare with grinding non-woven fleece, the attainable product of the present invention of non-woven fleece is relevant with the minimum degree corrosive effect of the abrasive grain that further adds with grinding, thus according to the present invention, the defective of lapped face not only can be hidden now, and can eliminate or correct at least.Now, be unexpectedly, do not need further polishing, chromium workpiece subsequently goes for this.
By selecting the type of adhesive, any operable filler and abrasive grain, wearing and tearing have basically been determined.In order to process various materials, for example brass, aluminium or stainless steel can be adjusted adhesive.Abrasive material of the present invention is effective especially when polishing relatively coarse surface of the work.Even when the abrasive grain in the abrasive material of the present invention was more coarse, these surfaces also can be polished very meticulous surface and not have defective now.
After decades out in the cold, by by means of the elastic compliant adhesive in the matrix, run counter to current developing trend and realized all these.
The 2-56 item relates to the further embodiment that has superiority of abrasive material of the present invention, and the 57-64 item relates to the preferred equipment for the manufacture of abrasive material of the present invention.
As for the term of employed summary, in subordinate item (sub-claims), with reference to the term in usually being supported partly by physical data and usually as the technology of standardization scope.
Outstanding especially is, by abrasive material according to the present invention, the grinding composite that now its elastic compliant matrix is contained non-porous resinoid is applied to the backing of pliable and tough shaping with the direct composite that forms integral body, namely, need not the promotion of independent adhesive layer, in the consumption of abrasive material, the particle that continues loss is replaced by the depths from matrix thus, this application lasts till to grind composite all or approach and all is lost to pliable and tough backing, and do not have the Grinding Quality loss.In this set, the elastic compliant structure in containing the grinding composite of matrix and abrasive grain can be given complete abrasive material with intrinsic pliability with the pliability of backing, and this pliability can be adjusted according to special application.In addition, can make now the consumer obtain identical abrasive material, do not consider aspect the consumer to be pliable and tough or not wear and tear that the pliability that therefore is no longer necessary for abrasive material has the application of different demands and lays in many different abrasive materials in a lot of the application.
The 2nd relates to the respectively preferred bound of adhesive density in matrix and grinding composite.
The 3-12 item relates to the preferred choice criteria of considering the elastic compliant structure of matrix with reference to elasticity (3-6 item), hardness (7-10 item) and ultimate elongation (the 11st and 12).
The limiting value of quoting at the 2-12 item that is used for density (the 2nd), elasticity (3-6 item), hardness (7-10 item) and ultimate elongation (the 11st and 12) scope by standardization determine, particularly according to German DIN(DIN tissue) the effective ISO(of standard or whole world International Standards Organization) standard, each relates to following standard:
Density: be respectively the 2nd of DIN 53479 and ISO 1183()
Elasticity: be respectively DIN 53513 and ISO 527-2(3-6 item)
Hardness: be respectively DIN 53505 and ISO 868(7-10 item)
Ultimate elongation: be respectively DIN 53504 and ISO 527-1(the 11st and 12).
Preferred standard when the 13rd backing that relates to requirement matrix or grind composite is pliable and tough.
The 14-18 item relates to the preferable range perpendicular to desired minimum thickness (14-16 item) and the maximum ga(u)ge (the 17th and 18) of the matrix of backing.Current, the preferred thickness of application is that 1000 μ m are that 1.0mm and 1500 μ m are 1.5mm.On this meaning, outstanding especially being applied as of the present invention is made as the flat material abrasive material of Web materials particularly.
The 19-22 item relates to the preferable range of ratio of the percent by volume of the abrasive grain of matrix and adhesive, has required lower limit (the 19th and 20) and the upper limit (the 21st and 22).
The 23-25 item has been stated the preferred granular size scope of abrasive grain.
The 26th preferable range of having stated the Shore hardness of abrasive material.
The 27-34 item relates to the preferred material for non-porous resinoid, and the 35th adhesive can be filled in branch road (branch) usually, has stated specific prescription for the 36th and 37 simultaneously.
The 38th relates to for avoid as far as possible the foamable special formulation of adhesive in the scope of the invention.For this purpose, stated that special use foam inhibitor is as the additive of adhesive for the 38th.
The 39-42 item relates to the selection of the preferred type of abrasive grain.
The 43rd preferred arrangements that relates to abrasive grain in matrix.
The 44-47 item relates to preferably with the independent matrix body of matrix segmentation (sub-divisionings) one-tenth.
The 48-51 item relates to preferred backing structure.
The 52-56 item relates to the preferred geometries for the abrasive material of various milling tools.
The 52nd variant of stating particularly importantly, wherein, abrasive material of the present invention is formed the endless belt.In this structure, its effect to the workpiece that is used for identical abrasive material also can change according to the position of endless belt, produces the effect to workpiece.For this effect, this position is on contact wheel on the one hand particularly preferably, is the free side at endless belt on the other hand, and thus, hardness and the belt speed of contact wheel can be used as influence factor.
The invention still further relates to the manufacture method of the abrasive material of the present invention of 57-64 item.
A kind of known method can be seen by US Patent No. 5562745.
With reference now to Fig. 1 that main points of the present invention are described substantially-3, describes the present invention in detail by specific example embodiment.
Description of drawings
Fig. 1 shows the partial view of abrasive material contact surface;
Fig. 2 is the partial view with respect to the magnification ratio of white circle among Fig. 1;
Fig. 3 has illustrated the profile perpendicular to the larger magnification ratio of the part of contact surface of identical abrasive material.
The specific embodiment
In the abrasive material shown in all figure, pliable and tough support backing 2 is bonded to has a few shown in matrix 4(Fig. 3) on, this matrix 4 contains elastic compliant and non-porous resinoid 6 for example not polyurethane and filler and the additive of foaming, and abrasive grain 8 is evenly dispersed ground or is embedded in the matrix 4 with the stratiform that is parallel to backing 2 thus.In this arranged, adhesive 6 not only was used for the abrasive grain 8 of adhesive matrix 4, and matrix 4 is adhered on the backing 2, did not therefore need the independent adhesive layer between matrix 4 and the backing 2.
Towards being the contact free faces 10 that are parallel to backing 2 away from the side that is formed at matrix 4 of backing 2.When abrasive material did not use, the abrasive grain 8 that does not scab was not shown from the contact surface 10(of the screen resilience (return force) that is subject to elastic compliant adhesive 6) outstanding a little.In use, the abrasive grain in the zone of contact surface 10 interacts with the workpiece (not shown) of the bounce of antagonism elastic compliant adhesive 6, fully or approach and fully be pressed in the matrix 4., under its original condition or before using abrasive material, abrasive grain 8 only protrudes from contact surface fully, form microstructures with the adhesive 6 with matrix 4 at contact surface 10.
In addition, illustrated specific embodiment is in following feature aspect specific:
In the backing 2 of whole length, matrix 4 is divided into the hexagon matrix body 4a of a plurality of rules, the surface that this matrix body is determined with hexagonal profile is with perpendicular to backing 2 directions, so that in any case wearing and tearing, matrix 4 all can become to each backing 2 or be parallel to contact surface 10 each matrix body 4a identical regular hexagonal cross section and keep.
Each independent matrix body 4a protrudes from the backing 2 with total length space 12, and the size in this space is always middle and expand to the zone of contact surface 10 from backing 2.
Space 12 can be used for air cooling or the liquid cools of workpiece (not shown).
As shown in the figure, matrix body 4a has formed the uniform alveolate texture of matrix 4.In this arranges, select to grind direction 16, so that along the line directions of fabricating at two relative angles that connect matrix body 4a, these are the interlaced formation slit that arranges successively, so that even when matrix body 4a is shaken, still guarantee the mutual support by adjacent unmoved matrix body 4a.
The specific hexagon structure of independent matrix body 4a shown in not considering in the case, be chosen in the matrix 4 their structure and arrangement, strengthened on the whole the pliability of grinding composite so that be decomposed into the matrix 4 of independent matrix body 4a with being connected to of backing 2.When abrasive material is the endless belt (not shown), significant and unique advantage that Here it is.
Test example:
Test parameters:
The banded grinder (tubestock belt grinder) of tubing: Flex LBR 1506 VRA, 1200 Watt
Belt length (endless belt): 40mm * 618mm
Cutting speed: 14m/s
Workpiece: stainless steel pipe, material number No.1.4301,
Size: 50mm * 2.5mm
Operation: by tubing hand guided machine
Test is prepared:
At first stainless steel pipe is ground with lapping tape particle size P 80 cursorily at the centerless grinding machine.Roughly the peak after the cutting to the average height of paddy is about Ra=2.6 micron.
Carry out test:
For the stainless steel railing, usually limit the peak to the average height Ra=0.5 micron of paddy.This realizes by using following particle order usually: P120-P180-P280.Use lapping tape, for example pliable and tough about 320g/m of cotton backing of lapping tape CS 310 XF(of standard
2, abrasive grain aluminium oxide, aerodux).In order to realize specific polishing, machine will turn round at least 3 times (particle P120-P180-P280).
In order to compare, endless belt of the present invention is used for identical test structure and carries out identical test and prepare, and the feature of endless belt is as follows: the pliable and tough about 320g/m of cotton backing
2, bed thickness be 1200 microns polyurethane as non-porous resinoid, abrasive grain carborundum P60 is evenly dispersed in the adhesive.
In only turning round for 1 time, the peak is to the average height Ra=0.5 micron of paddy.
Claims (64)
1. abrasive material, wherein, abrasive grain (8) is dispersed in the matrix (4), this matrix (4) contains the non-foam and non-porous resinoid (6) that is useful on described abrasive grain (8), and the contact surface (10) that wherein, is covered by abrasive grain (8) designs for grinding work-piece;
It is characterized in that the combination of following characteristics:
(a) the elastic compliant degree of described matrix (4) is pressed in the matrix (4) abrasive grain (8) that covers contact surface (10) when grinding;
(b) described abrasive grain (8) is dispersed in the matrix (4), so that discharged the contact surface (10) of the more deep layer that is covered by abrasive grain (8) perpendicular to the consumption of the matrix (4) of the contact surface (10) that is covered by abrasive grain (8) at first;
(c) described abrasive grain (8) is dispersed in the matrix (4), so that they are obedient to the screen resilience perpendicular and parallel to the matrix (4) on the corresponding contact of abrasive material surface (10);
(d) matrix (4) is attached on the flexible backing (2);
(e) matrix (4) directly is attached on its flexible backing (2) by contained adhesive (6) in the matrix (4).
2. abrasive material according to claim 1 is characterized in that, the density of the adhesive (6) in the described matrix (4) be not less than described adhesive (6) material proportion 90%.
3. abrasive material according to claim 1 is characterized in that, the elasticity of described matrix (4) is not less than 35%.
4. abrasive material according to claim 3 is characterized in that, the elasticity of described matrix (4) is not less than 40%.
5. abrasive material according to claim 1 is characterized in that, the elasticity of described matrix (4) is not more than 55%.
6. abrasive material according to claim 5 is characterized in that, the elasticity of described matrix (4) is not more than 50%.
7. abrasive material according to claim 1 is characterized in that, the hardness of described matrix (4) is not less than 40 Shore A.
8. abrasive material according to claim 7 is characterized in that, the hardness of described matrix (4) is not less than 45 Shore A.
9. abrasive material according to claim 1 is characterized in that, the hardness of described matrix (4) is not higher than 75 Shore A.
10. abrasive material according to claim 9 is characterized in that, the hardness of described matrix (4) is not higher than 70 Shore A.
11. abrasive material according to claim 1 is characterized in that, the ultimate elongation of described matrix (4) is not less than 150%.
12. abrasive material according to claim 11 is characterized in that, the ultimate elongation of described matrix (4) is not less than 170%.
13. abrasive material according to claim 1 is characterized in that, the flexural rigidity of the described backing (2) that the anglec of rotation of the detection width by 15mm, the detection spacing of 20mm and 15 ° detects is not higher than 5000 milli oxen.
14. abrasive material according to claim 1 is characterized in that, is not less than 200 μ m perpendicular to the thickness of the described matrix of described backing (2).
15. abrasive material according to claim 14 is characterized in that, is not less than 500 μ m perpendicular to the thickness of the described matrix of described backing (2).
16. abrasive material according to claim 15 is characterized in that, is not less than 1000 μ m perpendicular to the thickness of the described matrix of described backing (2).
17. abrasive material according to claim 1 is characterized in that, is not higher than 2500 μ m perpendicular to the thickness of the described matrix of described backing (2).
18. abrasive material according to claim 17 is characterized in that, is not higher than 1500 μ m perpendicular to the thickness of the described matrix of described backing (2).
19. abrasive material according to claim 1, it is characterized in that, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is less than or equal to 80 volume %.
20. abrasive material according to claim 19, it is characterized in that, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is less than or equal to 60 volume %.
21. abrasive material according to claim 1, it is characterized in that, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is more than or equal to 20 volume %.
22. abrasive material according to claim 21, it is characterized in that, in the ratio of the percent by volume of the adhesive (6) of the percent by volume of described abrasive grain (8) and described matrix (4), the percent by volume of abrasive grain (8) is more than or equal to 40 volume %.
23. abrasive material according to claim 1 is characterized in that, described abrasive grain (8) is of a size of 2-2000 μ m.
24. abrasive material according to claim 23 is characterized in that, described abrasive grain (8) is of a size of 70-540 μ m.
25. abrasive material according to claim 24 is characterized in that, described abrasive grain (8) has size P36, P60, P120 and the P240 according to the FEPA standard.
26. abrasive material according to claim 1 is characterized in that, the Shore hardness of described abrasive material in the Durometer A hardness scope is 60 ° of-90 ° of Shore A.
27. abrasive material according to claim 1 is characterized in that, described adhesive (6) contains polyurethane.
28. abrasive material according to claim 27 is characterized in that, described adhesive (6) is made by a kind of described polyurethane.
29. abrasive material according to claim 1 is characterized in that, described adhesive (6) contains rubber.
30. abrasive material according to claim 29 is characterized in that, described adhesive (6) is made by a kind of described rubber.
31. abrasive material according to claim 1 is characterized in that, described adhesive (6) contains polysulfide.
32. abrasive material according to claim 31 is characterized in that, described adhesive (6) is made by a kind of described polysulfide.
33. abrasive material according to claim 1 is characterized in that, described adhesive (6) contains acrylate.
34. abrasive material according to claim 33 is characterized in that, described adhesive (6) is made by a kind of described acrylate.
35. abrasive material according to claim 1 is characterized in that, described adhesive (6) is filled.
36. abrasive material according to claim 1 is characterized in that, except described adhesive (6), described matrix (4) also contains at least a filler and/or at least a dyestuff and/or at least a additive.
37. according to claim 35 or 36 described abrasive materials, it is characterized in that, provide kaolin as filler.
38. according to claim 35 or 36 described abrasive materials, it is characterized in that, provide at least a foam inhibitor as additive.
39. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that described abrasive grain (8) contains at least a carborundum and/or at least a silica.
40. described abrasive material is characterized in that according to claim 39, described abrasive grain (8) is comprised of at least a carborundum and/or at least a silica.
41. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that described abrasive grain (8) is comprised of at least a aluminium oxide and/or at least a aluminium oxide mixed crystal.
42. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that at least a portion of described abrasive grain (8) is comprised of at least a carbide alloy.
43. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that the abrasive grain (8) that arranges close to described backing (2) relies on the described backing (2).
44. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that, the described matrix (4) that comprises its abrasive grain (8) is divided into and is dispersed in the upper and mutual spaced several matrix bodies (4a) of identical backing (2), and described matrix body (4a) has consistent cross section in the direction perpendicular to initial contact surface (10) or backing (2).
45. described abrasive material is characterized in that according to claim 44, described matrix body (4a) has the polygon cross section that is parallel to backing (2), and is grinding direction (16) arrangement that intermeshes.
46. described abrasive material is characterized in that according to claim 45, described polygon cross section is hexagon, and with two angular orientations on two angles on the described grinding direction (16) or the direction opposite with described grinding direction (16).
47. described abrasive material is characterized in that according to claim 44, described matrix body (4a) has the circular cross section that is parallel to described backing (2), and is grinding direction (16) arrangement that intermeshes.
48. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that described backing (2) is comprised of woven fabric, knitted fabric, film and/or layer of filament.
49. described abrasive material is characterized in that according to claim 48, described backing (2) is by natural fiber or staple fibre or their compositions of mixtures.
50. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that described backing (2) is intrinsic elastic compliant.
51. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that described backing (2) has the quality polishing.
52. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that abrasive construction is the endless belt.
53. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that abrasive construction is flat material.
54. 3 described abrasive materials is characterized in that according to claim 5, described abrasive construction is for being used for the bar of swing actuator.
55. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that abrasive construction is for being used for pan or the bow of swing actuator.
56. according to claim 1, the described abrasive material of any one in 35 and 36, it is characterized in that abrasive construction is for the abrasive disk of the pan that is used for rotating driver, segmentation, laminated grinding point or take turns.
57. the manufacture method of the described abrasive material of any one among the claim 1-56, it is characterized in that, at first described abrasive grain (8) is sneaked into and have still in the matrix (4) of low viscous adhesive (6), then this mixture is applied to described backing (2).
58. the manufacture method of the described abrasive material of any one among the claim 1-56, it is characterized in that, will be simultaneously still at first be applied on the matrix (4) on the backing (2) for low viscous adhesive (6), then be applied on the abrasive grain (8), so that abrasive grain (8) sinks in the described backing (2), described adhesive (6) still is low viscosity simultaneously.
59. the manufacture method of 8 described abrasive materials is characterized in that according to claim 5, described abrasive grain (8) is scattered in the described matrix (4), and described adhesive (6) still is low viscosity simultaneously.
60. the manufacture method of 8 described abrasive materials is characterized in that according to claim 5, all is applied on the matrix (4) of backing (2) before with several approach described abrasive grain (8) being administered to, adhesive (6) still is low viscosity simultaneously.
61. the manufacture method of 7 described abrasive materials is characterized in that according to claim 5, matrix (4) and the abrasive grain (8) that will contain described adhesive (6) are administered on the backing (2) with the multiple coating method together.
62. the manufacture method of the described abrasive material of any one among the 8-60 is characterized in that according to claim 5, matrix (4) and the abrasive grain (8) that will contain described adhesive (6) are administered on the backing (2) with the multiple coating method respectively.
63. the manufacture method of the described abrasive material of any one among the 7-61 is characterized in that according to claim 5, uses macking technique to arrange apart from one another by the matrix body (4a) of arranging at backing (2).
64. the manufacture method of the described abrasive material of any one is characterized in that among the claim 44-47, uses macking technique at backing (2) matrix body (4a) apart from one another by arrangement to be set.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004058710 | 2004-12-06 | ||
| DE102004058710.8 | 2004-12-06 | ||
| PCT/EP2005/012637 WO2006061112A1 (en) | 2004-12-06 | 2005-11-25 | Abrasive product and method for the production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101048259A CN101048259A (en) | 2007-10-03 |
| CN101048259B true CN101048259B (en) | 2013-03-13 |
Family
ID=35929652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800366089A Expired - Fee Related CN101048259B (en) | 2004-12-06 | 2005-11-25 | Grinding material and its preparation method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20090277098A1 (en) |
| EP (1) | EP1827762B1 (en) |
| JP (1) | JP4996475B2 (en) |
| KR (1) | KR101287501B1 (en) |
| CN (1) | CN101048259B (en) |
| BR (1) | BRPI0518815A2 (en) |
| WO (1) | WO2006061112A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9492001B2 (en) * | 2011-11-01 | 2016-11-15 | Derma Dream Group Ltd. | System and method for treating a surface |
| WO2014037034A1 (en) * | 2012-09-05 | 2014-03-13 | Kwh Mirka Ltd. | Flexible grinding product with flattened surface and method for manufacturing the same |
| AU2014265845B2 (en) | 2013-05-17 | 2016-11-17 | 3M Innovative Properties Company | Easy-clean surface and method of making the same |
| DE102013112296A1 (en) * | 2013-11-08 | 2015-05-13 | Klingspor Ag | abrasive |
| EP3348355A1 (en) * | 2017-01-16 | 2018-07-18 | Klingspor AG | Grinding body, in particular graining body |
| TWI656000B (en) * | 2018-03-27 | 2019-04-11 | 中國砂輪企業股份有限公司 | Grinding tool |
| CN109227417A (en) * | 2018-10-31 | 2019-01-18 | 张家港智慧清洁技术研究院有限公司 | A kind of electroplated diamond abrasive band and preparation method thereof |
| CN110421492B (en) * | 2019-06-12 | 2021-05-18 | 江苏君睿智能制造有限公司 | Wear-resistant scrubbing sheet for cleaning cold-rolled section steel |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2825638A (en) * | 1955-07-27 | 1958-03-04 | Us Rubber Co | Grinding wheel manufacture |
| DD106585A1 (en) | 1973-04-06 | 1974-06-20 | ||
| US4255164A (en) * | 1979-04-30 | 1981-03-10 | Minnesota Mining And Manufacturing Company | Fining sheet and method of making and using the same |
| DE2918103C2 (en) * | 1979-05-04 | 1985-12-05 | Sia Schweizer Schmirgel- & Schleifindustrie Ag, Frauenfeld | Method for applying a base binder and apparatus for carrying out the same |
| US4504283A (en) * | 1982-07-22 | 1985-03-12 | Superior Finishers, Incorporated | Cushioned abrasive articles, and method of manufacture |
| JPS59161270A (en) * | 1983-03-01 | 1984-09-12 | Sanwa Kenma Kogyo Kk | Production method for polyurethane grindstone |
| JPH0773828B2 (en) * | 1985-07-19 | 1995-08-09 | トヨタ自動車株式会社 | Honing wheel for aluminum alloy and its manufacturing method |
| JPH0518055Y2 (en) * | 1986-05-09 | 1993-05-13 | ||
| JPS645775A (en) * | 1987-06-30 | 1989-01-10 | Tokin Corp | Surface polishing tape for magnetic recording medium |
| JPH01121656U (en) * | 1988-02-09 | 1989-08-17 | ||
| JPH03256676A (en) * | 1990-03-05 | 1991-11-15 | Romatetsuku Kk | Polishing cloth |
| US5380390B1 (en) * | 1991-06-10 | 1996-10-01 | Ultimate Abras Systems Inc | Patterned abrasive material and method |
| AU654901B2 (en) * | 1992-03-16 | 1994-11-24 | De Beers Industrial Diamond Division (Proprietary) Limited | Polishing pad |
| DE4328345A1 (en) * | 1992-10-28 | 1994-05-05 | Ruetgerswerke Ag | Duroplastic mixts. for moulded or abrasive articles |
| TW383322B (en) * | 1994-11-02 | 2000-03-01 | Norton Co | An improved method for preparing mixtures for abrasive articles |
| TW394723B (en) * | 1997-04-04 | 2000-06-21 | Sung Chien Min | Abrasive tools with patterned grit distribution and method of manufacture |
| JP4195942B2 (en) * | 1998-02-20 | 2008-12-17 | 宏一 西村 | Abrasive |
| JP2000017252A (en) * | 1998-06-29 | 2000-01-18 | Dainippon Ink & Chem Inc | Abrasive material composition and abrasive material thereof |
| DE19951250A1 (en) * | 1999-10-25 | 2001-05-03 | Treibacher Schleifmittel Gmbh | Abrasive grain with an active coating |
| JP2001181507A (en) * | 1999-12-28 | 2001-07-03 | Dow Corning Toray Silicone Co Ltd | Abrasive-forming silicone rubber composition |
| JP2002172563A (en) * | 2000-11-24 | 2002-06-18 | Three M Innovative Properties Co | Abrasive tape |
| JP2004031674A (en) * | 2002-06-26 | 2004-01-29 | Disco Abrasive Syst Ltd | Contamination removing apparatus |
| JP3737787B2 (en) * | 2002-07-16 | 2006-01-25 | 株式会社東芝 | Manufacturing method of semiconductor device |
| GB0225913D0 (en) * | 2002-11-06 | 2002-12-11 | 3M Innovative Properties Co | Abrasive articles |
| JP2004235445A (en) * | 2003-01-30 | 2004-08-19 | Toyobo Co Ltd | Polishing pad |
| JP2005007520A (en) * | 2003-06-19 | 2005-01-13 | Nihon Micro Coating Co Ltd | Abrasive pad, manufacturing method thereof, and grinding method thereof |
| JP4874121B2 (en) * | 2004-11-19 | 2012-02-15 | 豊田バンモップス株式会社 | Grinding wheel |
-
2005
- 2005-11-25 WO PCT/EP2005/012637 patent/WO2006061112A1/en active Application Filing
- 2005-11-25 EP EP05809970.6A patent/EP1827762B1/en not_active Not-in-force
- 2005-11-25 KR KR1020077012751A patent/KR101287501B1/en not_active IP Right Cessation
- 2005-11-25 JP JP2007543749A patent/JP4996475B2/en not_active Expired - Fee Related
- 2005-11-25 US US11/720,642 patent/US20090277098A1/en not_active Abandoned
- 2005-11-25 CN CN2005800366089A patent/CN101048259B/en not_active Expired - Fee Related
- 2005-11-25 BR BRPI0518815-6A patent/BRPI0518815A2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006061112A1 (en) | 2006-06-15 |
| JP4996475B2 (en) | 2012-08-08 |
| EP1827762B1 (en) | 2013-09-11 |
| KR20070085816A (en) | 2007-08-27 |
| US20090277098A1 (en) | 2009-11-12 |
| CN101048259A (en) | 2007-10-03 |
| EP1827762A1 (en) | 2007-09-05 |
| BRPI0518815A2 (en) | 2008-12-09 |
| JP2008522837A (en) | 2008-07-03 |
| KR101287501B1 (en) | 2013-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101048259B (en) | Grinding material and its preparation method | |
| US5011512A (en) | Coated abrasive products employing nonabrasive diluent grains | |
| AU549574B2 (en) | Abrasive article comprising abrasive agglomerates supported in a fibrous matrix | |
| EP2682232B1 (en) | Abrasive articles with novel structures and methods for grinding | |
| KR100620268B1 (en) | Abrasive articles with novel structures and methods for grinding | |
| US4737163A (en) | Coated abrasive product incorporating selective mineral substitution | |
| AU687598B2 (en) | Coated abrasive article, method for preparing the same, and method of using | |
| US5273558A (en) | Abrasive composition and articles incorporating same | |
| US4486200A (en) | Method of making an abrasive article comprising abrasive agglomerates supported in a fibrous matrix | |
| JP5580977B2 (en) | Polishing article having new structure and grinding method | |
| US20020197945A1 (en) | Coated abrasives with indicia | |
| JPS61297083A (en) | Grinding cloth paper | |
| US3924362A (en) | Sanding pad assembly | |
| JP2007313641A5 (en) | ||
| US20070293130A1 (en) | Wearable Abrasive Surfaces for Dry Applications | |
| US3813231A (en) | Sandpaper | |
| WO2012006017A2 (en) | Nonwoven abrasive wheel | |
| US3773480A (en) | Abrasive means and method of manufacture | |
| US20150360341A1 (en) | Polishing pad | |
| ES456356A1 (en) | Coating grinding material having layer of spherical grinding body | |
| US20150174736A1 (en) | Composite Backing Material Layer And Method Of Forming Same | |
| KR930007104B1 (en) | Coated abrasive procucts employing nonabrasive diluent grains | |
| CA3107036C (en) | Nonwoven abrasive belt with flexible joint | |
| JP2023008118A (en) | Grindstone | |
| TW218889B (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1110265 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1110265 Country of ref document: HK |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20131125 |