EP0657251B1 - Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre - Google Patents

Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre Download PDF

Info

Publication number
EP0657251B1
EP0657251B1 EP94115358A EP94115358A EP0657251B1 EP 0657251 B1 EP0657251 B1 EP 0657251B1 EP 94115358 A EP94115358 A EP 94115358A EP 94115358 A EP94115358 A EP 94115358A EP 0657251 B1 EP0657251 B1 EP 0657251B1
Authority
EP
European Patent Office
Prior art keywords
abrasive
wheel according
ring
support
grinding
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 - Lifetime
Application number
EP94115358A
Other languages
German (de)
English (en)
Other versions
EP0657251A1 (fr
Inventor
Dr. Diethard Sinram
Dipl.-Ing. Theodor Schneider
Dr. Dipl.-Ing. Bernd Stuckenholz
Dipl.-Ing. Peter Alfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
August Rueggeberg GmbH and Co KG
Original Assignee
August Rueggeberg GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by August Rueggeberg GmbH and Co KG filed Critical August Rueggeberg GmbH and Co KG
Publication of EP0657251A1 publication Critical patent/EP0657251A1/fr
Application granted granted Critical
Publication of EP0657251B1 publication Critical patent/EP0657251B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121—Circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0081—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for of wire-reinforced grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/16—Bushings; Mountings

Definitions

  • the invention relates to a cutting wheel for stationary Grinding machines and their use.
  • Such grinding wheels are only used up to a range of 50 to 70% of the original diameter worn. So it will be a considerable one Part of the grinding wheel not used. This one not used The proportion of the grinding wheel is in a range of 30 to 50% of the Original weight of the grinding wheel. This remaining remainder must be over Hazardous waste landfills are being disposed of, which poses increasing problems since the number of hazardous waste landfills is declining and there the cost for this rises sharply.
  • the reason for the relatively high remaining The rest of the unused grinding wheel lies in the fact that the Grinding disks clamped on the grinding spindles with the help of flanges that are spread over a substantial portion of the diameter extend the grinding wheel, as well as in that the diameter of the goods to be separated impossible to use the cutting disc again makes.
  • Cut-off wheels for stationary grinding machines usually have a large outside diameter in the range of 305 to 1800 mm, while Grinding discs for hand-held grinding machines have an outer diameter from 100 to 300 mm and in special cases up to 400 mm.
  • the invention has for its object a cutting wheel for stationary To create grinding machines in which the amount of waste to be disposed of is greatly reduced.
  • the support body can either be reused or at least be recycled; in addition, the slip ring can be practical completely processed, i.e. used up.
  • the further development according to claim 2 is expedient, to be able to use up the slip ring completely.
  • the supporting body only needs to be cleaned slightly and can then be reused or an existing recycling process, for example as steel scrap.
  • the further developments according to claims 3 to 6 indicate how the connection between Support body and slip ring in a particularly simple and particularly durable Way can be designed.
  • Claim 7 gives a particularly simple design for the support body on.
  • Claims 8 to 11 give particularly advantageous refinements for Reinforcement layers that enable the slip rings to be covered to give large recess on the outer diameter, which in turn the The reason for this is that if the slip ring is completely used up is achieved.
  • Claim 12 specifies a further embodiment of a support body, the is designed to be particularly thin, which ensures that the grinding wheel receives a particularly high flexibility, so that parallel to the Axial forces occurring can be absorbed without the The slip ring breaks off from the edge of the supporting body.
  • the selection of the binder of the slip ring according to claim 14 causes the Slip ring on the one hand is sufficiently hard that it does not lubricate and is self-sharpening at the same time; on the other hand is the necessary bending elasticity given and the necessary strength of the connection between Slip ring and support body.
  • Claim 15 gives a measure for improvement the adhesion between slip ring and support body.
  • Claim 16 gives diameter ranges for the outer diameter of the Cutting wheel, while claim 17 ranges for the thickness of the Slip ring indicates.
  • Claim 18 gives areas for the ratio of Outside diameter to inside diameter of the slip ring. Against that Claim 19 the use of a grinding wheel according to the invention.
  • a grinding wheel is shown, which is a cut-off grinding wheel for a stationary grinding machine. It has a ring-cylindrical slip ring 1, into which a likewise ring-cylindrical support body 2 is glued.
  • the slip ring 1 has an annular recess 3 which is concentric with the central longitudinal axis 4.
  • the support body 2 is inserted into this recess 3.
  • the diameter of the recess 3, ie the inner diameter Di of the slip ring 1, is a few tenths of a millimeter larger than the outer diameter d of the support body 2.
  • the slip ring 1 has an outer diameter Da, the following applying to the ratio Da / Di: 1.4 ⁇ Da / Di ⁇ 2, ie the slip ring 1 has a relatively large recess 3 with respect to its outer diameter Da. This is only approximate; Details are set out below.
  • the outer diameter Da is 300 mm ⁇ Da ⁇ 1800 mm and in particular 450 mm ⁇ Da ⁇ 1800 mm.
  • the thickness a of the slip ring 1 in the direction of the axis 4 is greater than that Thickness b of the support body 2 in the direction of the axis 4, so that the slip ring 1 with both end faces 5, 5 'over the end faces 6, 6' of the supporting body 2 stands out.
  • the thickness of the support body 2 in Direction of the axis 4 be equal to the thickness of the slip ring 1, wherein then the slip ring 1 and the support body 2 are arranged plane-parallel to each other are; for cutting discs, however, it is advantageous if the thickness b of the support body 2 in the direction of the axis 4 is slightly less than that Thickness a of the slip ring 1 to immerse the cutting wheel in enable or facilitate a workpiece to be cut.
  • a of the slip ring 1 of grinding wheels for stationary Use applies 3.3 mm ⁇ a ⁇ 18.0 mm and in particular 4.5 mm ⁇ a ⁇ 18.00 mm.
  • the slip ring 1 and the support body 2 are together by means of a suitable adhesive, preferably modified Phenolic resin.
  • a suitable adhesive preferably modified Phenolic resin.
  • To the adhesive connection between slip ring 1 and to make the supporting body 2 as firm as possible is due to the difference in diameter gap D formed by D and d between the cylindrical Inner peripheral surface 8 of the slip ring 1 and the cylindrical Outer peripheral surface 9 of the support body 2 with a thin cylindrical ring Adhesive layer 10 filled.
  • Gusset 11 filled with adhesive seams 12 on the one hand to the exposed Share the cylindrical inner peripheral surface 8 and on the other attack the adjacent areas of the end faces 6, 6 '.
  • the support body 2 has a receiving opening formed concentrically to the axis 4 13 for the drive shaft of a stationary grinding machine, on.
  • the support body 2 is made of metal, usually from Stole. It is made from sheet metal by punching or turning.
  • the slip ring 1 has the usual basic structure, i.e. it has a reinforcement layer in the area of the end faces 5, 5 ' 14, 14 ', which is designed in a manner to be described is.
  • Abrasive grain is located between the reinforcement layers 14, 14 ' 15, preferably made of aluminum oxide, silicon carbide, zirconium corundum, sol gel grain or mixtures thereof and binder 16 in the form of pure or modified Synthetic resins and fillers 17, e.g. Pyrite or cryolite.
  • the Abrasive grain 15 has a nominal grain size in the range from 315 to 1500 ⁇ m.
  • FIG. 3 shows a reinforcement layer 14 described in DE 38 19 199 C2 or 14 ', which is preferred instead of a fabric in such grinding wheels is to be used.
  • a reinforcement layer 14 or 14 ' is formed from one or more reinforcing threads 18, which in optimal Counteract tangential and radial expansions of the slip ring 1.
  • the reinforcing threads run in the region of a central opening 19 18 exactly tangential; they then run radially-tangentially to to the outer circumference and are redirected there and again straight to Opening 19 returned where they are tangentially passed. You run thus essentially according to the actual stress of the rotating slip rings 1.
  • the greatest main tension of a rotating slip ring runs in the tangential direction.
  • the tangential tension i.e.
  • the tangential force curve has in the area of the opening 19, that is to say radially on the inside in the region of the inner peripheral surface 7 of the Slip ring 1, its highest value, which decreases steadily to the outside.
  • the reinforcing threads 18 only run exactly tangential in the area of the opening 19 that they but receive a radial component between the opening 19 and the outer edge, to counteract the radial tension, which is also strong in this area.
  • the reinforcing threads 18 are at the respective crossing points 20 connected to each other, by a synthetic resin.
  • the Reinforcing threads 18 become the one shown in Fig. 3 before laying Pattern soaked in a synthetic resin solution.
  • the reinforcement layer 14 or 14 ' is therefore sufficient intrinsically stable to be used for the production of a slip ring 1. Except in the area of the outer deflection points 21 and the inner ones The reinforcing threads 18 run in the region of the opening 19 straightforward.
  • the inner diameter D'i of the reinforcement layer 14 or 14 ' corresponds essentially to the inner diameter Di of the slip ring 1. The same applies to the ratio of the outer diameter D'a Reinforcement layer 14 or 14 'in relation to the diameter of the Slip ring 1.
  • the apex angle c of the reinforcing threads 18 in the area the deflection points 21 are directed when the radius of curvature, not shown is neglected in the area of the deflection points 21, exclusively according to the ratio of D'a to D'i. Because the reinforcement threads 18 arranged essentially like the legs of an isosceles triangle are also referred to as triangles.
  • a reinforcement layer 14 or 14 ' is shown, which is very special preferably instead of a fabric in the slip rings described 1 of cut-off wheels for stationary grinding machines are.
  • the reinforcing threads 18 are each from the central opening 19 according to the resultant the main stress direction. 4 is the course of such Reinforcement thread shown in reinforced lines. He begins - with mirror-symmetrical design - tangential in the area opening 19 and is such in slightly more than a half-spiral rotation led to the outer deflection point 21 that he already there again has an approximately tangential course. As can be seen in FIG. 4, Reinforcing thread 18 approximates only point-wise at the central opening 19 on. It follows that there is no excessive accumulation of material the reinforcing threads 18 occurs in the region of the opening 19. this fact and the described course of the reinforcing threads leave them Reinforcement layer 14 or 14 'appear even more advantageous than the reinforcement layer 3.
  • a reinforcement layer 14 ' is placed in a press mold. Subsequently, an abrasive granulate consisting of abrasive grain 15, filler 17 and binder 16 is inserted into the mold and another reinforcement layer 14 is placed on it. A pressure of 50 to 4000 N / cm 2 is then exerted on this package, as a result of which the slip ring 1 is compressed. During this compression, an adhesive bond occurs, which is referred to as green strength. During this pressing, the abrasive granules, ie abrasive grain 15, binding agent 16 and filler 17, each press outward through the reinforcing layer 14 or 14 '.
  • this finished hardened slip rings 1 is a support body 2 glued in the manner already described.
  • the the adhesive layer 10 and the adhesive seams 12 forming adhesive is then in cured in a continuous furnace at about 120 ° C.
  • Example I The production of the slip ring 1 up to the compression takes place as for Example I. Then before the hardening of the slip ring 1 Support body 2 glued in the manner described. The slip ring 1 and support body 2 existing grinding wheel is then between steel plates stacked and placed in an oven for curing as in Example I, now simultaneously the binder 16 of the slip ring 1 and the adhesive of the adhesive layer 10 and the adhesive seams 12 at temperatures between 120 ° C and 200 ° C - depending on the desired degree of hardness - be cured.
  • the slip ring 1 can also be in a known manner have internal reinforcement layer.
  • the grinding wheel can be used until the grinding ring has been completely processed 1 are used, especially when used as a cutting wheel, because they are created in a cut-off on the workpiece Gap can dip without collisions between the support body 2 and the machined workpiece can occur.
  • Remains of the slip ring 1 and the adhesive layer 10 and the adhesive seams 12 can by heating the remaining support body 2 and can be removed by subsequent brushing with steel brushes. The Support body 2 can then be used again. Should they be damaged they can be easily recycled.
  • slip ring 1 shows a cutting wheel, on the one hand Slip ring 1 and on the other hand has a support body 2 '.
  • the slip ring 1 essentially corresponds in structure to that described above Structure, wherein it is provided with reinforcement layers 14, 14 'as they are 4 and are described above for this purpose.
  • the support body 2 ' consists of sheet steel, possibly stainless Steel, aluminum or brass, whose thickness e applies 0.6 mm ⁇ e ⁇ 3.0 mm.
  • the very thin support body 2 ' is an annular cylindrical Edge 24 flanged, its extension b in the direction of axis 4 is equal to or slightly less than the thickness a of the slip ring 1.
  • an anterior peripheral surface 9 ' is connected to the slip ring 1.
  • the slip ring 1 is immediately on the outer circumferential surface 9 'of the annular cylindrical edge 24, which is further explained in the following description of the manufacture becomes.
  • the cutting wheel as shown in FIGS. 5 and 6 is against lateral forces, i.e. against forces acting on the slip ring 1 engage at a radial distance from the supporting body 2 'parallel to the axis 4, so elastic that the grinding wheel breaks, in particular cannot occur in the area of the edge 24.
  • the supporting body 2 'itself is therefore also flexible parallel to axis 4.
  • the grinding wheel is flexible, i.e. with lateral bending forces there are no jumps in the bending stress curve in the area of the edge 24, so that the risk of bending due to parallel lateral forces acting on axis 4 are not given.
  • the slip ring 1 is flexible for such forces, which on the one hand on the synthetic resin bond of the slip ring 1 and on the other hand on the The presence of the reinforcement layers 14, 14 'can be traced back.
  • the thickness e of the support body 2 ' may be small; on the other hand, the edge 24 is necessary so that the outer peripheral surface 9 ' has a sufficient axial extent b around that from the slip ring 1 torsional forces to be transmitted to the supporting body 2 'and also those mentioned Transfer side bending forces from the slip ring 1 to the support body 2 ' to be able to.
  • Cut-off wheels of this design are used in stationary use preferably used in the lower diameter range, i.e. it applies 300 mm ⁇ Da ⁇ 500 mm and in particular 450 mm ⁇ Da ⁇ 500 mm.
  • For axial extension b of the margin 24 applies that it should only be insignificantly smaller than the thickness a.
  • 0.8 a ⁇ b ⁇ 1.0 a applies.
  • the ratio Da / Di ⁇ 2 also applies to this cutting wheel and in particular applies 1.4 ⁇ Da / Di ⁇ 2.
  • the special spiral laying according to Fig. 4 allows the recess 3 of the slip ring 1 relative to Outside diameter Da to make very large, which again leads to the fact that the slip ring 1 are completely used up during cut-off grinding can, so far that at the edge 24 no residues of the slip ring 1 more remain. This is due to the fact that by the end of the A reinforcement 14 or 14 'is present in the grinding ring 1 in the slip ring 1 is, the reinforcing threads 18 run purely tangential in this area and therefore the high occurring here in a particularly favorable manner Can absorb tangential forces.
  • the support body 2 ' should be a surface treatment have been subjected to surface oxidation, in particular Rust formation in non-stainless steel, counteracts.
  • surface oxidation in particular Rust formation in non-stainless steel
  • nickel plating, copper plating or painting of the support body 2 ' Consider, but especially a plasma polymer treatment of Carrying body 2 ', because such treatment on the one hand extreme cleaning takes place and on the other hand a particularly high adhesiveness is achieved, which is particularly for the outer peripheral surface 9 ' is cheap.
  • the outer peripheral surface 9 ' is provided with a thin layer 25 of elasticized phenol-formaldehyde adhesive, which has the function of an adhesion promoter and is not absolutely necessary. Then the support body 2 'is placed in a mold, with its end face 6''facing away from the edge 24 being placed on the bottom of the mold, ie the edge 24 stands up. Then a reinforcement layer 14 'is inserted, the opening 19 of which is completely filled by the support body 2'. Then grinding granulate is filled into the mold and combed or knife.
  • This grinding granulate consists of the abrasive grain 15 already described with a nominal grain size in the range of 1500 microns, binder 16 and filler 17, the binder is also a phenol-formaldehyde adhesive, which is usually identical to that from which the Layer 25 exists. In any case, it should be a curing polycondensation adhesive.
  • the second reinforcement layer 14 is placed on the combed or scraped-in layer of the grinding granulate. The grinding granules are then pressed with the support body 2 'under a pressure of 50 to 4000 N / cm 2 .
  • abrasive grain 15 presses into the layer 25 on the one hand and also into the outer peripheral surface 9 'of the edge 24, as a result of which a particularly firm tooth-like connection between the slip ring 1 and the support body 2' is achieved.
  • These compacted but not yet hardened grinding wheels are stacked between steel plates and placed in an oven for hardening and hardened at temperatures between 120 and 200 ° C, depending on the desired degree of hardness. The connection between the slip ring 1 and the support body 2 'on the one hand and the hardening of the grinding granulate on the other hand is thus carried out in one operation.
  • the slip ring 1 itself should have as hard a binder 16 as possible, on the one hand to prevent lubrication during the grinding process and on the other hand ensure premature breakout of the abrasive grain 15 so that a Self-sharpening of the grinding wheel is achieved.
  • Binder should not be so hard or brittle that breaking off the Slip ring 1 from the support body 2 'can occur.
  • Polycondensation adhesive with numerous modification options have here as proven particularly advantageous.
  • the end face 5 'of the slip ring 1 is flush with the end face 6 '', while the end face 5 of the slip ring 1 in the direction the axis 4 protrudes slightly beyond the edge 24.
  • a stationary grinding machine 26 is indicated, one of has a motor-driven grinding spindle 27.
  • a receiving flange 28 is attached, which in the usual way receives ring-cylindrical support body 2 or 2 'centered.
  • the in the Drawing shown grinding wheel corresponds - in simplified Representation - which according to FIGS. 5 and 6.
  • the support body 2 and 2 ' is located with its end face 6 'or 6' 'against the receiving flange 28.

Claims (19)

  1. Disque abrasif de tronçonnage pour meuleuses stationnaires,
    comprenant un corps intérieur de support (2, 2') réalisé en forme de disque annulaire et
    une bague de meulage (1) réalisée en forme de disque annulaire, présentant au moins une couche d'armure (14, 14') et une composition de résine synthétique liant le grain abrasif, et munie d'un évidement (3) qui est ménagé concentriquement à un axe médian longitudinal (4), et dans lequel le corps de support (2, 2') est logé et relié à la bague de meulage (1),
    le diamètre extérieur (Da) de la bague de meulage (1) obéissant à la relation :
    305 mm ≤ Da ≤ 1 800 mm.
  2. Disque abrasif selon la revendication 1, caractérisé par le fait que la bague de meulage (1) fait saillie, au moins par une face extrême (5), au-delà d'une face extrême (6) du corps de support (2, 2').
  3. Disque abrasif selon la revendication 1 ou 2, caractérisé par le fait que la bague de meulage (1) et le corps de support (2, 2') sont reliés l'un à l'autre par collage.
  4. Disque abrasif selon l'une des revendications 1 à 3, caractérisé par le fait qu'un interstice (7), comblé par une couche d'adhésif (10), est réservé entre la surface périphérique extérieure (9) du corps de support (2) et une surface périphérique intérieure (8) de la bague de meulage (1) qui délimite l'évidement (3).
  5. Disque abrasif selon l'une des revendications 1 à 4, caractérisé par le fait que la surface périphérique intérieure (8) de la bague de meulage (1), délimitant l'évidement (3), et/ou la surface périphérique extérieure (9, 9') du corps de support (2, 2'), sont de réalisation cylindrique.
  6. Disque abrasif selon la revendication 3, caractérisé par le fait que la bague de meulage (1) et le corps de support (2) sont collés l'un à l'autre au moyen d'une résine phénolique modifiée.
  7. Disque abrasif selon l'une des revendications 1 à 6, caractérisé par le fait que le corps de support (2, 2') consiste en de la tôle métallique.
  8. Disque abrasif selon l'une des revendications 1 à 7, caractérisé par le fait que la couche d'armure (14, 14') est constituée par des fils de renforcement (18) qui s'étendent tangentiellement dans la région d'un orifice central (19) et tangentiellement, dans le sens radial, en direction du pourtour extérieur, et qui sont déviés sur le pourtour extérieur.
  9. Disque abrasif selon la revendication 8, caractérisé par le fait que les fils de renforcement (18) présentent respectivement une allure rectiligne tangentiellement, et tangentiellement dans le sens radial.
  10. Disque abrasif selon la revendication 8, caractérisé par le fait que les fils de renforcement (18) s'étendent sous la forme d'une spirale partielle à partir de l'orifice central (19) et en direction du pourtour extérieur.
  11. Disque abrasif selon l'une des revendications 8 à 10, caractérisé par le fait que les fils de renforcement (18) sont collés les uns aux autres dans leurs zones de croisement (20).
  12. Disque abrasif selon la revendication 7, caractérisé par le fait que l'épaisseur (e) du corps de support (2') est plus petite que l'épaisseur (a) de la bague de meulage (1) ; et par le fait que le corps de support (2') est doté, sur son pourtour extérieur, d'un rebord (24) pour l'essentiel en forme d'anneau cylindrique dont l'étendue (b), dans la direction de l'axe médian longitudinal (4), est plus grande que l'épaisseur (e) du corps de support (2'), et sur la surface périphérique extérieure (9') duquel la bague de meulage (1) est fixée.
  13. Disque abrasif selon la revendication 12, caractérisé par le fait que le grain abrasif (15) est partiellement enfoncé dans la surface périphérique extérieure (9') du rebord (24).
  14. Disque abrasif selon l'une des revendications 1 à 13, caractérisé par le fait que la bague de meulage (1) présente un adhésif de polycondensation en tant que liant (16).
  15. Disque abrasif selon l'une des revendications 12 à 14, caractérisé par le fait que la surface périphérique extérieure (9') du rebord (24) est pourvue d'une couche (25) d'un adhésif qui est du même type que le liant (16) de la bague de meulage (1).
  16. Disque abrasif selon l'une des revendications 1 à 15, caractérisé par le fait que le diamètre extérieur (Da) de la bague de meulage (1) obéit à la relation : 450 mm ≤ Da ≤ 1 800 mm.
  17. Disque abrasif selon l'une des revendications 1 à 16, caractérisé par le fait que l'épaisseur (a) de la bague de meulage (1) obéit à la relation 3,3 mm ≤ a ≤ 20,0 mm, et en particulier à 4,5 mm ≤ a ≤ 20,0 mm.
  18. Disque abrasif selon l'une des revendications 1 à 17, caractérisé par le fait que le rapport, entre le diamètre extérieur (Da) et le diamètre intérieur (Di) de la bague de meulage (1), obéit à la relation 1,4 ≤ Da/Di ≤ 2,0.
  19. Mise en oeuvre du disque abrasif de tronçonnage selon l'une des revendications 1 à 18, sur une meuleuse stationnaire (26) qui comporte une broche (27) porte-meule munie d'au moins une bride d'ablocage (29) présentant un diamètre maximal (A), en vue du tronçonnage d'une pièce (32) d'épaisseur (f), le diamètre intérieur (Di) de la bague de meulage (1) obéissant à la relation Di ≥ A + 2 f.
EP94115358A 1993-11-11 1994-09-29 Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre Expired - Lifetime EP0657251B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4338492A DE4338492A1 (de) 1993-11-11 1993-11-11 Trenn-Schleifscheibe für stationäre Schleifmaschinenund deren Verwendung
DE4338492 1993-11-11

Publications (2)

Publication Number Publication Date
EP0657251A1 EP0657251A1 (fr) 1995-06-14
EP0657251B1 true EP0657251B1 (fr) 1998-05-06

Family

ID=6502332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115358A Expired - Lifetime EP0657251B1 (fr) 1993-11-11 1994-09-29 Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre

Country Status (4)

Country Link
EP (1) EP0657251B1 (fr)
AT (1) ATE165756T1 (fr)
DE (2) DE4338492A1 (fr)
ES (1) ES2115835T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50210697D1 (de) * 2002-01-16 2007-09-27 Swarovski Tyrolit Schleif Bandsäge
EP2384260B1 (fr) 2008-12-30 2018-07-04 Saint-Gobain Abrasives, Inc. Outils abrasifs collés et renforcés
DE102010016742A1 (de) * 2010-05-03 2011-11-03 Dietrich Wetzel Kg Schleif- und/oder Trennscheibe sowie Verfahren zu deren Herstellung
CN113681726B (zh) * 2021-08-24 2022-09-09 北新集团建材股份有限公司 一种石膏板高速锯切系统及其刀头

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE661847C (de) * 1938-06-28 Carl Krug Dr Ing Umlaufendes Schleifwerkzeug
BE528134A (fr) *
US3123948A (en) * 1964-03-10 Reinforced
DE606001C (de) * 1932-07-19 1934-11-23 Emil Motl Schneid- und Schleifscheibe mit einem scheibenfoermigen Traeger aus Metall
DE1769713U (de) * 1958-05-09 1958-07-03 Herm Schwarzhaupt & Soehne Trennschleifscheibe.
DE1291648B (de) * 1962-12-04 1969-03-27 Itt Ind Gmbh Deutsche Schleifscheibe mit Verstaerkungsgeflecht
DE1502644A1 (de) * 1964-02-10 1969-10-30 Norton Co Verfahren und Vorrichtung zur Herstellung von armierten Schleifscheiben
US3487590A (en) * 1967-02-02 1970-01-06 Itt Reinforced grinding wheel
DE2156770C3 (de) * 1971-11-16 1974-06-20 Hermann 7031 Maichingen Hefner Vorrichtung zur lösbaren Befestigung einer Schleifscheibe oder dergleichen auf einer Treibspindel
DE7240816U (de) * 1972-11-07 1973-03-15 Winter E & Sohn Kreissägeblatt mit einem ringförmigen Diamantschleifbelag
DE2719741A1 (de) * 1977-05-03 1978-11-09 Geb Riemer Elfriede Peltz Schleifscheibe
EP0083380A1 (fr) * 1981-12-30 1983-07-13 Sankyo Diamond Industrial Co., Ltd. Scie diamentée
US4794737A (en) * 1987-03-06 1989-01-03 Black & Decker Inc. Universal backing flange
ATE174544T1 (de) * 1993-02-15 1999-01-15 Rueggeberg August Gmbh & Co Schleifscheibe für handgeführte schleifmaschinen, insbesondere trenn-schleifscheibe

Also Published As

Publication number Publication date
DE4338492A1 (de) 1995-05-18
EP0657251A1 (fr) 1995-06-14
ATE165756T1 (de) 1998-05-15
DE59405896D1 (de) 1998-06-10
ES2115835T3 (es) 1998-07-01

Similar Documents

Publication Publication Date Title
EP1812206B1 (fr) Anneau de tronçonneuse à double dispositif de serrage médian
EP0229983A2 (fr) Meule anti-bruit
EP0612586B1 (fr) Disque abrasif pour meuleuse portative, en particulier disque de trançonnage
EP0657251B1 (fr) Disque abrasif de tronçonnage pour meuleuse stationnaire et sa mise en oeuvre
EP1543923B1 (fr) Disque d'ébauche
DE2740891C3 (de) Umfangsschleifscheibe
EP2440371B1 (fr) Outil de meulage et/ou de polissage et procédé de réalisation
EP1068048B1 (fr) Outil abrasif a lamelles
EP1611998B1 (fr) Roue de découpage pour application stationaire
EP3015222B1 (fr) Disque de meulage
EP3038795A1 (fr) Outil abrasif à fibres vulcanisées
EP0909612B1 (fr) Disque abrasif
EP0530691A1 (fr) Meule de rectification
EP0832720A2 (fr) Disque de meulage pour meuleuse portative, en particulier disque de tronçonnage
EP0444272B1 (fr) Disque de polissage à éléments flexibles périfériques
EP0799111B1 (fr) Zones recyclables de meules
EP3651936B1 (fr) Meule en éventail pour meuleuse d'angle
DE3201825A1 (de) Schleifscheibe
WO1991002626A1 (fr) Dressage des meules
EP0566761A1 (fr) Disque de meulage à lamelles
EP2043817B1 (fr) Meule
AT323010B (de) Schleifscheibe, insbesondere trennschleifscheibe
DE102013017962A1 (de) Verbessertes Vulkanfiber-Schleifwerkzeug
EP3278927A1 (fr) Disque de coupe
DE3644702A1 (de) Schleifkoerper mit wenigstens einem keramisch gebundenen schleifelement und verfahren zu seiner herstellung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19951128

17Q First examination report despatched

Effective date: 19970506

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AUGUST RUEGGEBERG GMBH & CO

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 165756

Country of ref document: AT

Date of ref document: 19980515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980506

REF Corresponds to:

Ref document number: 59405896

Country of ref document: DE

Date of ref document: 19980610

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2115835

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: STUDIO TORTA S.R.L.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000818

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20000821

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000904

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000918

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000921

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20000922

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000926

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001115

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010929

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010930

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

EUG Se: european patent has lapsed

Ref document number: 94115358.7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020531

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20021011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050929