EP1884316A1 - Verfahren zur Herstellung von Schleifscheiben und dadurch hergestellte Schleifscheiben - Google Patents

Verfahren zur Herstellung von Schleifscheiben und dadurch hergestellte Schleifscheiben Download PDF

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Publication number
EP1884316A1
EP1884316A1 EP07014584A EP07014584A EP1884316A1 EP 1884316 A1 EP1884316 A1 EP 1884316A1 EP 07014584 A EP07014584 A EP 07014584A EP 07014584 A EP07014584 A EP 07014584A EP 1884316 A1 EP1884316 A1 EP 1884316A1
Authority
EP
European Patent Office
Prior art keywords
pressing
paperboard
layer
abrasive
resins
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
EP07014584A
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English (en)
French (fr)
Other versions
EP1884316B1 (de
Inventor
Fabrizio Cortese
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.)
TAF Abrasivi SpA
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TAF Abrasivi SpA
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Filing date
Publication date
Application filed by TAF Abrasivi SpA filed Critical TAF Abrasivi SpA
Priority to SI200730121T priority Critical patent/SI1884316T1/sl
Priority to PL07014584T priority patent/PL1884316T3/pl
Publication of EP1884316A1 publication Critical patent/EP1884316A1/de
Application granted granted Critical
Publication of EP1884316B1 publication Critical patent/EP1884316B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
    • 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
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses

Definitions

  • the present invention relates to a method for making abrading or abrasive discs, and the abrasive disc made thereby.
  • lamellar or blade-like abrasive discs are generally made by molding a plastics material, such as nylon, polycarbonate and the like, or said abrasive discs are made starting from a fiberglass material, by using fiberglass net layers, impregnated or embedded with synthetic resins, and then pressed and polymerized or cross-linked.
  • the aim of the present invention is to overcome the above mentioned drawbacks, by providing a method for making abrading or abrasive discs, allowing to easily provide constructionally very simple abrasive discs and, in which, they are achieved as individual finished products, of a comparatively low cost.
  • a main object of the invention is to provide such a method allowing to make abrasive discs which, while being greatly resistant from a mere mechanic standpoint, also have a small weight, and can be used in a very safe and efficient manner.
  • Another object of the present invention is to provide a method for making abrasive discs, and the related made abrasive discs, which, owing to their specifically designed constructional features, are very reliable and safe in operation.
  • Another object of the present invention is to provide abrasive discs which can be easily constructed and which, moreover, are very competitive from a maintenance, servicing and operating standpoint.
  • a method for making abrasive discs characterized in that said method comprises the steps of coupling a vulcanized or cured fiber, or fiber paperboard material, or a paperboard material supporting layer, to a further layer including at least a fiberglass net, hot pressing, in a hot pressing mold, the two coupled layers to form a central bulged portion, and fixing a central ring-nut, spreading on the concave face a coupling or binding resin, applying fabric material blade elements coated by an abrasive material, and further pressing in a heated pressing oven.
  • the method for making abrasive discs provides the step of coupling a supporting layer 1 to a fiberglass net layer, generally indicated by the reference number 2.
  • the support layer 1 is advantageously made starting from a vulcanized or cured fiber material, or a fibrized paperboard material, or a simple paperboard material, made starting from a regenerated paper material, and with a thickness varying from 0.8 to 3 mm.
  • said support or supporting layer can be advantageously impregnated or embedded with synthetic resins or animal glue materials.
  • the fiberglass layer 2 is made of a fiberglass net construction, having a weight varying from 200 to 500 g/m 2 .
  • the layer 2 can be impregnated by phenolic resins, Novolac, epoxydic resins, polyurethane resins or other like synthetic resins.
  • the thus obtained laminated construction is made by molding operation in a mold designed for binding or coupling the layer 1 and layer 2 through a combined use of pressure and at a temperature of about 100-130°C.
  • a bulging or bulged portion is obtained, generally indicated by the reference number 4, where a central hole for receiving a ring nut 5 anchored to the laminated construction is formed.
  • a binding or coupling resin including preferably a single component epoxydic resin material.
  • said resin is applied by a spreading operation, thereby providing circular region 10 affecting the concave surface or face, where fabric blade elements 11, coated by an abrasive material, are applied.
  • the thus made assembly is pressed, and the made disc elements are in turn pressed and conveyed, as supported on a rod element 15, to a heated oven, which is heated to a temperature from 110°C to 130°C.
  • the disc elements are held in the oven 11 from about one to three hours, thereby causing the resin materials used for making the abrasive discs to be perfectly cured or polymerized.
  • a supporting layer of the above disclosed type, derived from a web or strip material, and a fiberglass layer, also obtained from a web or strip material, which are coupled to one another by causing them to pass through a calander, including calandering heated rollers, at a temperature from 100°C to 120°C; and, after having been subjected to a heating and cooling step, said coupled or laminated layer being rolled on.
  • the thus made web is cut through to provide desired diameter disc elements.
  • the thus obtained disc product has a very small cost.
  • the product made by the first making method can be produced in a single making line, starting from component elements to fully achieve a finished abrading disc.
  • the above disclosed method allows to eliminate the comparatively long and complex operations of the prior art, thereby allowing to achieve a saving of 30% with respect to conventional like products.
  • the used materials provided that they are compatible to the intended application, as well as the contingent size and shapes, can be any, depending on requirements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP07014584A 2006-07-31 2007-07-25 Verfahren zur Herstellung von Schleifscheiben und dadurch hergestellte Schleifscheiben Active EP1884316B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200730121T SI1884316T1 (sl) 2006-07-31 2007-07-25 Postopek izdelave abrazivnih diskov in abrazivni diski izdelani po tem postopku
PL07014584T PL1884316T3 (pl) 2006-07-31 2007-07-25 Sposoby wytwarzania tarcz ściernych oraz tarcze ścierne wytworzone tymi sposobami

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001516A ITMI20061516A1 (it) 2006-07-31 2006-07-31 Procedimento per la realizzazione di dischi abrasivi,nonche' dischi abrasivi ottenuti.

Publications (2)

Publication Number Publication Date
EP1884316A1 true EP1884316A1 (de) 2008-02-06
EP1884316B1 EP1884316B1 (de) 2009-09-23

Family

ID=38686631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07014584A Active EP1884316B1 (de) 2006-07-31 2007-07-25 Verfahren zur Herstellung von Schleifscheiben und dadurch hergestellte Schleifscheiben

Country Status (7)

Country Link
EP (1) EP1884316B1 (de)
AT (1) ATE443599T1 (de)
DE (1) DE602007002528D1 (de)
ES (1) ES2334396T3 (de)
IT (1) ITMI20061516A1 (de)
PL (1) PL1884316T3 (de)
SI (1) SI1884316T1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101200A1 (de) * 2010-02-18 2011-08-25 Klingspor Ag Rotationsscheibe zur bearbeitung von materialoberflächen
ITPR20100022A1 (it) * 2010-03-24 2011-09-25 Campana Mirco E Figli S N C Supporto per dischi abrasivi
EP3173190A1 (de) 2015-11-27 2017-05-31 Przedsiebiorstwo Pentar Stanislaw Róg Abrasive lamellenscheibe
IT201600117892A1 (it) * 2016-11-22 2018-05-22 Bdl S R L Disco per elettroutensili per il supporto di materiale abrasivo e metodo di realizzazione di un disco abrasivo comprendente detto disco di supporto
CN109108845A (zh) * 2018-10-30 2019-01-01 河南格锐新材料科技有限公司 一种切割片的骨架
EP3542960A3 (de) * 2018-03-22 2019-10-16 TU Global Ltd. Schleifscheibe mit ausgezeichneter verarbeitbarkeit und stabilität und verfahren zur herstellung davon
CN114434349A (zh) * 2022-03-19 2022-05-06 南通市辉鑫玻璃纤维有限公司 一种应用在铁路钢轨树脂砂轮切割片的生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928136A (en) * 1957-04-08 1960-03-15 Norton Co Method of forming coated abrasives
DE9017196U1 (de) * 1990-03-23 1991-03-14 Lukas-Erzett Vereinigte Schleif- Und Fraeswerkzeugfabriken Gmbh & Co Kg, 5250 Engelskirchen, De
DE9216621U1 (de) * 1992-12-05 1993-01-28 Lukas-Erzett Vereinigte Schleif- Und Fraeswerkzeugfabriken Gmbh & Co Kg, 5250 Engelskirchen, De
US5183479A (en) * 1991-11-01 1993-02-02 Gemtex Company Limited Abrasive disks and method of making
US6142045A (en) * 1996-10-24 2000-11-07 Coxe; Howard Abrasive disc cutting apparatus and method
WO2001034348A1 (en) * 1999-11-12 2001-05-17 Izard Irwin International Limited Implements and methods of manufacturing same
US20050170764A1 (en) * 2004-01-31 2005-08-04 Sun Abrasives Co., Ltd. Back up pad of grinding wheel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928136A (en) * 1957-04-08 1960-03-15 Norton Co Method of forming coated abrasives
DE9017196U1 (de) * 1990-03-23 1991-03-14 Lukas-Erzett Vereinigte Schleif- Und Fraeswerkzeugfabriken Gmbh & Co Kg, 5250 Engelskirchen, De
US5183479A (en) * 1991-11-01 1993-02-02 Gemtex Company Limited Abrasive disks and method of making
DE9216621U1 (de) * 1992-12-05 1993-01-28 Lukas-Erzett Vereinigte Schleif- Und Fraeswerkzeugfabriken Gmbh & Co Kg, 5250 Engelskirchen, De
US6142045A (en) * 1996-10-24 2000-11-07 Coxe; Howard Abrasive disc cutting apparatus and method
WO2001034348A1 (en) * 1999-11-12 2001-05-17 Izard Irwin International Limited Implements and methods of manufacturing same
US20050170764A1 (en) * 2004-01-31 2005-08-04 Sun Abrasives Co., Ltd. Back up pad of grinding wheel

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101200A1 (de) * 2010-02-18 2011-08-25 Klingspor Ag Rotationsscheibe zur bearbeitung von materialoberflächen
ITPR20100022A1 (it) * 2010-03-24 2011-09-25 Campana Mirco E Figli S N C Supporto per dischi abrasivi
EP3173190A1 (de) 2015-11-27 2017-05-31 Przedsiebiorstwo Pentar Stanislaw Róg Abrasive lamellenscheibe
WO2017091093A1 (en) 2015-11-27 2017-06-01 Przedsiębiorstwo Pentar Stanisław Róg Abrasive flap disc
IT201600117892A1 (it) * 2016-11-22 2018-05-22 Bdl S R L Disco per elettroutensili per il supporto di materiale abrasivo e metodo di realizzazione di un disco abrasivo comprendente detto disco di supporto
EP3542960A3 (de) * 2018-03-22 2019-10-16 TU Global Ltd. Schleifscheibe mit ausgezeichneter verarbeitbarkeit und stabilität und verfahren zur herstellung davon
US11103975B2 (en) 2018-03-22 2021-08-31 Tu Global Ltd. Abrasive disk having excellent workability and stability and process for producing the same
CN109108845A (zh) * 2018-10-30 2019-01-01 河南格锐新材料科技有限公司 一种切割片的骨架
CN114434349A (zh) * 2022-03-19 2022-05-06 南通市辉鑫玻璃纤维有限公司 一种应用在铁路钢轨树脂砂轮切割片的生产工艺
CN114434349B (zh) * 2022-03-19 2023-07-07 南通市辉鑫玻璃纤维有限公司 一种应用在铁路钢轨树脂砂轮切割片的生产工艺

Also Published As

Publication number Publication date
ES2334396T3 (es) 2010-03-09
SI1884316T1 (sl) 2010-02-26
DE602007002528D1 (de) 2009-11-05
EP1884316B1 (de) 2009-09-23
ATE443599T1 (de) 2009-10-15
ITMI20061516A1 (it) 2008-02-01
PL1884316T3 (pl) 2010-01-29

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