EP0657251A1 - 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

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Publication number
EP0657251A1
EP0657251A1 EP94115358A EP94115358A EP0657251A1 EP 0657251 A1 EP0657251 A1 EP 0657251A1 EP 94115358 A EP94115358 A EP 94115358A EP 94115358 A EP94115358 A EP 94115358A EP 0657251 A1 EP0657251 A1 EP 0657251A1
Authority
EP
European Patent Office
Prior art keywords
slip ring
grinding wheel
wheel according
grinding
support body
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.)
Granted
Application number
EP94115358A
Other languages
German (de)
English (en)
Other versions
EP0657251B1 (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 Firma
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 Firma, August Rueggeberg GmbH and Co KG filed Critical AUGUST RUEGGEBERG Firma
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

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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 according to the preamble of claim 1 and its use.
  • Such grinding wheels are only worn down to a range of 50 to 70% of the original diameter. A considerable part of the grinding wheel is therefore not used. This unused portion of the grinding wheel is in a range from 30 to 50% of the original weight of the grinding wheel. This remaining remainder has to be disposed of in hazardous waste landfills, which poses increasing problems as the number of hazardous waste landfills is declining and the cost of doing so rises sharply.
  • the reason for the relatively high remaining amount of unused grinding wheel lies both in the fact that the grinding wheels are clamped on the grinding spindles with the aid of flanges which extend over a considerable part of the diameter of the grinding wheel, as well as in that the diameter of the separating goods makes further use of the cutting wheel impossible.
  • a grinding wheel in particular a cutting wheel for hand-held grinding machines, is known, the slip ring of which has at least one reinforcement layer.
  • the slip-ring-shaped slip ring has a recess which is concentric with a central longitudinal axis and in which a ring-shaped carrier body is arranged and connected to the slip ring. This grinding wheel can be used without waste.
  • Cutting wheels for stationary grinding machines generally have a large outside diameter in the range of 305 to 1800 mm, while grinding wheels for hand-held grinding machines have an outside diameter of 100 to 300 mm and in special cases up to 400 mm.
  • the invention has for its object to provide a cutting wheel of the generic type, in which the amount of waste to be disposed of is greatly reduced.
  • the support body can either be reused or at least recycled;
  • the slip ring can be practically completely processed, i.e. used up.
  • the development according to claim 2 is useful in order to be able to fully consume the slip ring.
  • the support body only needs to be cleaned slightly and can then be reused or sent to an existing recycling process, for example as steel scrap.
  • the developments according to claims 3 to 6 indicate how the connection between the support body and slip ring can be designed in a particularly simple and particularly durable manner in one embodiment.
  • Claim 7 specifies a particularly simple design for the support body.
  • the claims 8 to 11 specify particularly advantageous configurations for reinforcement layers, which make it possible to give the slip rings a recess which is large in relation to the outside diameter, which in turn is the reason why the slip ring is completely used up.
  • Claim 12 specifies a further embodiment of a support body, which is particularly thin, which ensures that the grinding wheel receives a particularly high bending elasticity, so that lateral forces occurring parallel to the axis can be absorbed without the slip ring breaking off from the edge of the support body.
  • a special type of manufacture makes it possible to achieve particularly intensive toothing of the slip ring and support body according to claim 13.
  • the selection of the binder of the slip ring according to claim 14 leads to the fact that the slip ring is sufficiently hard on the one hand so that it does not lubricate and at the same time is self-sharpening; on the other hand, the necessary bending elasticity is given and the necessary strength of the connection between the slip ring and the supporting body.
  • Claim 15 specifies a measure to improve the adhesion between slip ring and support body.
  • Claim 16 specifies diameter ranges for the outer diameter of the cutting wheel, while claim 17 ranges for the thickness of the Slip ring indicates.
  • Claim 18 specifies ranges for the ratio of the outer diameter to the inner diameter of the slip ring.
  • claim 19 specifies 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 applies 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 the thickness b of the support body 2 in the direction of the axis 4, so that the slip ring 1 projects with both end faces 5, 5 'over the end faces 6, 6' of the support body 2.
  • the thickness of the support body 2 in the direction of the axis 4 can be equal to the thickness of the slip ring 1, in which case the slip ring 1 and the support body 2 are arranged plane-parallel to one another; for cutting disks, however, it is advantageous if the thickness b of the supporting body 2 in the direction of the axis 4 is somewhat less than the thickness a of the slip ring 1, in order to enable or facilitate immersion of the cutting wheel in a workpiece to be cut.
  • the slip ring 1 and the support body 2 are connected to one another by means of a suitable adhesive, preferably modified phenolic resin.
  • a suitable adhesive preferably modified phenolic resin.
  • the gap 7 formed due to the difference in diameter of D and d between the cylindrical inner peripheral surface 8 of the slip ring 1 and the cylindrical outer peripheral surface 9 of the carrier body 2 is filled with a thin, ring-cylindrical adhesive layer 10.
  • the gussets 11 formed due to the axial protrusion of the slip ring 1 with respect to the support body 2 are filled with adhesive seams 12 which on the one hand engage on the exposed parts of the cylindrical inner peripheral surface 8 and on the other hand on the adjacent areas of the end faces 6, 6 '.
  • the support body 2 has a receiving opening 13, which is formed concentrically to the axis 4, for the drive shaft of a stationary grinding machine.
  • the support body 2 is made of metal, usually made of steel. It is made from sheet metal by punching or turning.
  • the slip ring 1 has the usual basic structure, i.e. it has in the area of the end faces 5, 5 'each a reinforcement layer 14, 14', which is designed in a manner to be described.
  • abrasive grain 15 preferably made of aluminum oxide, silicon carbide, zirconium corundum, solgel grain or mixtures thereof, and binders 16 in the form of pure or modified synthetic resins and fillers 17, such as 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 or 14 'described in DE 38 19 199 C2, which should preferably be used instead of a fabric in such cutting-off grinding wheels.
  • a reinforcement layer 14 or 14 ' is formed from one or more reinforcing threads 18 which optimally counteract tangential and radial expansions of the slip ring 1.
  • the reinforcing threads 18 run exactly tangentially; they then run radially tangentially to the outer circumference and are deflected there and in turn returned in a straight line to the opening 19, where they are passed tangentially. They therefore run essentially in accordance with the actual stress on the rotating slip rings 1.
  • the greatest main stress of a rotating slip ring runs in the tangential direction.
  • the tangential tension ie the tangential force curve, has its highest value in the area of the opening 19, that is to say radially on the inside in the area of the inner circumferential surface 7 of the slip ring 1, which steadily decreases towards the outside.
  • the reinforcing threads 18 run exactly tangentially only in the area of the opening 19, but that they receive a radial component between the opening 19 and the outer edge in order to counteract the radial tension which is also strong in this area.
  • the reinforcing threads 18 are connected to one another at the respective crossing points 20, specifically by a synthetic resin.
  • the reinforcing threads 18 are impregnated with a synthetic resin solution before being laid into the pattern shown in FIG. 3.
  • the reinforcing threads 18 are hot-pressed, whereby this synthetic resin hardens, so that a connection of the reinforcing threads 18 occurs at the crossing points 20.
  • the reinforcement layer 14 or 14 ' is therefore sufficiently inherently stable to be used for producing a slip ring 1. Except in the area of the outer deflection points 21 and the inner ones Deflection in the region of the opening 19, the reinforcing threads 18 run in a straight line.
  • the inner diameter D'i of the reinforcement layer 14 or 14 ' essentially corresponds to the inner diameter Di of the slip ring 1. The same applies to the ratio of the outer diameter D'a of the reinforcement layer 14 or 14' to the diameter Da of the slip ring 1.
  • FIG. 4 shows a reinforcement layer 14 or 14 ', which is particularly preferably to be used instead of a fabric for the above-described slip rings 1 of cutting-off grinding wheels for stationary grinding machines.
  • the reinforcing threads 18 are each laid from the central opening 19 in accordance with the resultant of the main tension direction. 4 shows the course of such a reinforcing thread in reinforced lines. It begins - with a mirror-symmetrical design - tangentially in the area of the opening 19 and is guided in a little more than a half-spiral rotation to the outer deflection point 21 such that it already has an approximately tangential course there.
  • a reinforcing thread 18 lies approximately only in a punctiform manner on the central opening 19. It follows that there is no excessive accumulation of material of the reinforcing threads 18 in the region of the opening 19. This fact and the described course of the reinforcing threads make this reinforcement layer 14 or 14 'appear even more advantageous than the reinforcement layer according to FIG. 3.
  • a reinforcement layer 14 ' is placed in a press mold. Then an existing of abrasive grain 15, filler 17 and binder 16 Grinding granules entered into the mold and another reinforcement layer 14 placed. A pressure of 50 to 4000 N / cm2 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 reinforcement layer 14 or 14 '.
  • a support body 2 is glued in the manner already described.
  • the adhesive forming the adhesive layer 10 and the adhesive seams 12 is then cured in a continuous furnace at approximately 120 ° C.
  • the manufacture of the slip ring 1 until compression takes place as in example I.
  • the support body 2 is glued in in the manner described.
  • the grinding wheel consisting of slip ring 1 and support body 2 is then stacked between steel plates and placed in an oven for hardening as in Example I, the binder 16 of the slip ring 1 and the adhesive of the adhesive layer 10 and the adhesive seams 12 at the same time at temperatures between 120 ° C and 200 ° C - depending on the desired degree of hardness - can be cured.
  • the slip ring 1 can also have an internal reinforcing layer in a known manner.
  • the grinding wheel can be used until the grinding ring 1 has been completely processed, in particular also when used as a cutting grinding wheel, since it is produced in one by grinding the workpiece Gap can dip without collisions between the support body 2 and the machined workpiece can occur.
  • Remnants of the slip ring 1 and the adhesive layer 10 and the adhesive seams 12 can be removed by heating the remaining support body 2 and by subsequent brushing with steel brushes. The support body 2 can then be used again. If they are damaged, they can be easily recycled.
  • FIG. 5 and 6 show a cutting wheel which has a slip ring 1 on the one hand and a support body 2 'on the other hand.
  • the structure of the slip ring 1 corresponds essentially to the structure described above, wherein it is provided with reinforcement layers 14, 14 ', as shown in FIG. 4 and described above for this purpose.
  • the support body 2 ' consists of sheet steel, possibly stainless steel, aluminum or brass, for whose thickness e applies 0.6 mm ⁇ e ⁇ 3.0 mm.
  • Ribs 23, which extend radially to the axis 4, are formed around the receiving opening 13 and have only the purpose of allowing the support body 2 'to be clamped onto the usual receptacles of the spindles of stationary grinding machines.
  • the very thin supporting body 2 ' is flanged to form an annular cylindrical edge 24, the extent b of which in the direction of the axis 4 is equal to or slightly less than the thickness a of the slip ring 1.
  • An outer peripheral surface 9' is formed on the annular cylindrical edge 24, which is connected to the slip ring 1.
  • the slip ring 1 is attached directly to the outer circumferential surface 9 'of the ring-cylindrical edge 24, which will be explained in the following description of the manufacture.
  • the cutting wheel as shown in FIGS.
  • the supporting body 2 'itself is therefore also flexible parallel to axis 4.
  • the entire grinding wheel is flexible as a composite body, ie there are no jumps in the course of the bending stress in the region of the edge 24 in the case of side bending forces, so that there is no risk of bending fracture due to side forces acting parallel to the axis 4.
  • the slip ring 1 is also flexible for such forces, which is due on the one hand to the synthetic resin bond of the slip ring 1 and on the other hand to the presence of the reinforcing layers 14, 14 '.
  • the thickness e of the support body 2 ' can be small; on the other hand, the edge 24 is necessary so that the outer peripheral surface 9 'has a sufficient axial extent b in order to be able to transmit the torsional forces to be transmitted from the slip ring 1 to the support body 2' and also the mentioned lateral bending forces from the slip ring 1 to the support body 2 '.
  • Cutting wheels of this design are preferably used in the lower diameter range for stationary use, i.e. the following applies: 300 mm ⁇ Da und 500 mm and in particular 450 mm ⁇ Da ⁇ 500 mm.
  • 0.8 a ⁇ b ⁇ 1.0 a applies.
  • This cut-off wheel also applies to the ratio Da / Di ⁇ 2 and in particular 1.4 ⁇ Da / Di ⁇ 2.
  • the special spiral arrangement according to FIG. 4 makes it possible to make the recess 3 of the slip ring 1 very large relative to the outer diameter Da to make, which again leads to the fact that the slip ring 1 can be completely used up during cut-off, to the extent that no residues of the slip ring 1 remain at the edge 24. This is due to the fact that, until the end of the grinding insert, a reinforcement 14 or 14 'is present in the slip ring 1, the reinforcing threads 18 of which extend purely tangentially in this area and can therefore absorb the high tangential forces occurring here in a particularly advantageous manner.
  • the support body 2 ' So that the fixed connection between the support body 2 'and slip ring 1 on the outer peripheral surface 9' is not is negatively affected, the support body 2 'should have been subjected to a surface treatment which counteracts surface oxidation, in particular rust formation in non-stainless steel.
  • a surface treatment which counteracts surface oxidation, in particular rust formation in non-stainless steel.
  • nickel-plating, copper-plating or painting of the support body 2 ' comes into consideration, but in particular also a plasma polymer treatment of the support body 2', since such treatment results in extreme cleaning on the one hand, and on the other hand a particularly high adhesive capacity is achieved, which is for the outer peripheral surface 9 'is particularly 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 granulate is then pressed with the support body 2 'under a pressure of 50 to 4000 N / cm2.
  • 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 curing and cured 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 a binder 16 which is as hard as possible, on the one hand to prevent lubrication during the grinding process and on the other hand to ensure that the abrasive grain 15 breaks out prematurely so that the grinding wheel is self-sharpened.
  • the binder must not be so hard or brittle that the slip ring 1 can break off from the supporting body 2 '.
  • Polycondensation adhesive with numerous modification options have proven to be particularly advantageous here.
  • 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 protrudes somewhat beyond the edge 24 in the direction of the axis 4 .
  • FIG. 7 shows a stationary grinding machine 26 which has a grinding spindle 27 which can be driven by a motor.
  • a receiving flange 28 is attached, which receives the ring-cylindrical support body 2 or 2 'centered in the usual manner.
  • the cutting wheel shown in the drawing corresponds - in a simplified representation - to that of FIGS. 5 and 6.
  • the attachment is carried out by means of a clamping nut 30 which is screwed onto a threaded pin 31 of the grinding spindle 27.
  • the diameter A of the flanges 28, 29 has a size which is predetermined by the design of the stationary grinding machine 26, it being assumed for the present description that the receiving flange 28 and the clamping flange 29 have the same diameter. If this is not the case, A corresponds to the larger diameter.
  • the inner diameter Di of the slip ring applies to a given greatest possible thickness f of such a workpiece 32 1 Tue ⁇ A + 2 f .
  • the inside diameter Di of the slip ring 1 has an oversize compared to the diameter A of the flanges 28, 29 and twice the thickness f of the workpiece 32 of a total of 30 mm.
  • the workpiece 32 can thus be severed even when the slip ring 1 is practically used up, without it abutting the flanges 28, 29 at the end of the severing.
  • the stationary grinding machine 26 is designed such that the workpiece 32 does not collide with the grinding machine 26 even in its position closest to the flanges 28, 29, shown in broken lines in FIG. 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
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
DE4338492 1993-11-11
DE4338492A DE4338492A1 (de) 1993-11-11 1993-11-11 Trenn-Schleifscheibe für stationäre Schleifmaschinenund deren Verwendung

Publications (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003059562A1 (fr) * 2002-01-16 2003-07-24 Tyrolit Schleifmittelwerke Swarovski Kg Scie à ruban
EP2384260B1 (fr) 2008-12-30 2018-07-04 Saint-Gobain Abrasives, Inc. Outils abrasifs collés et renforcés
CN113681726A (zh) * 2021-08-24 2021-11-23 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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010016742A1 (de) * 2010-05-03 2011-11-03 Dietrich Wetzel Kg Schleif- und/oder Trennscheibe sowie Verfahren zu deren Herstellung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE528134A (fr) *
DE606001C (de) * 1932-07-19 1934-11-23 Emil Motl Schneid- und Schleifscheibe mit einem scheibenfoermigen Traeger aus Metall
DE661847C (de) * 1938-06-28 Carl Krug Dr Ing Umlaufendes Schleifwerkzeug
US3123948A (en) * 1964-03-10 Reinforced
CH447589A (de) * 1964-02-10 1967-11-30 Norton Co Verstärkungsnetz für formgepresste Gegenstände aus einer gebundenen Masse, Verfahren und Vorrichtung zu seiner Herstellung und Verwendung des Verstärkungsnetzwerkes
US3487590A (en) * 1967-02-02 1970-01-06 Itt Reinforced grinding wheel
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
EP0612586A1 (fr) * 1993-02-15 1994-08-31 Firma August Rüggeberg Disque abrasif pour meuleuse portative, en particulier disque de trançonnage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US4794737A (en) * 1987-03-06 1989-01-03 Black & Decker Inc. Universal backing flange

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE528134A (fr) *
DE661847C (de) * 1938-06-28 Carl Krug Dr Ing Umlaufendes Schleifwerkzeug
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
CH447589A (de) * 1964-02-10 1967-11-30 Norton Co Verstärkungsnetz für formgepresste Gegenstände aus einer gebundenen Masse, Verfahren und Vorrichtung zu seiner Herstellung und Verwendung des Verstärkungsnetzwerkes
US3487590A (en) * 1967-02-02 1970-01-06 Itt Reinforced grinding wheel
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
EP0612586A1 (fr) * 1993-02-15 1994-08-31 Firma August Rüggeberg Disque abrasif pour meuleuse portative, en particulier disque de trançonnage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003059562A1 (fr) * 2002-01-16 2003-07-24 Tyrolit Schleifmittelwerke Swarovski Kg Scie à ruban
EP1332822A1 (fr) * 2002-01-16 2003-08-06 Tyrolit Schleifmittelwerke Swarovski KG Scie à ruban
EP2384260B1 (fr) 2008-12-30 2018-07-04 Saint-Gobain Abrasives, Inc. Outils abrasifs collés et renforcés
CN113681726A (zh) * 2021-08-24 2021-11-23 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

Also Published As

Publication number Publication date
DE4338492A1 (de) 1995-05-18
ATE165756T1 (de) 1998-05-15
ES2115835T3 (es) 1998-07-01
DE59405896D1 (de) 1998-06-10
EP0657251B1 (fr) 1998-05-06

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