DE2342869A1 - Polishing or grinding wheel or block - corundum particles are supported by foam plastics material - Google Patents

Polishing or grinding wheel or block - corundum particles are supported by foam plastics material

Info

Publication number
DE2342869A1
DE2342869A1 DE19732342869 DE2342869A DE2342869A1 DE 2342869 A1 DE2342869 A1 DE 2342869A1 DE 19732342869 DE19732342869 DE 19732342869 DE 2342869 A DE2342869 A DE 2342869A DE 2342869 A1 DE2342869 A1 DE 2342869A1
Authority
DE
Germany
Prior art keywords
grinding
polishing
block
grinding wheel
supported
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.)
Pending
Application number
DE19732342869
Other languages
German (de)
Inventor
Wilhelm Fleissner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19732342869 priority Critical patent/DE2342869A1/en
Publication of DE2342869A1 publication Critical patent/DE2342869A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical 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 bonding agent
    • B24D3/20Physical 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 bonding agent and being essentially organic
    • B24D3/28Resins or natural or synthetic macromolecular compounds
    • B24D3/32Resins or natural or synthetic macromolecular compounds for porous or cellular structure

Abstract

A grinding or polishing wheel or block is made from a medium hardness plastics foam material, with closed pores which thus prevents the entry of moisture, and which forms a support for the grinding particles, e.g. corundum powder. When made in the block form it may consist of two layers of different grades of grinding material. The plastics supporting material gives good flexibility to ensure an improved finish.

Description

23428592342859

22 855 G/we 6. August 197322 855 G / we August 6, 1973

Wilhelm Fleissner, 711o öhringen/Württ.Wilhelm Fleissner, 711o öhringen / Württ.

Schleif- oder PolierkörperGrinding or polishing media

Die Erfindung betrifft einen Schleif- oder Polierkörper, dessen feinkörnige Schleifmittel in einem härtbaren Kunststoff als Bindemittel eingebettet sind.The invention relates to a grinding or polishing body, the fine-grained abrasive in a hardenable plastic are embedded as a binder.

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Zum Schleifen oder Polieren von Oberflächen jeglicher Art werden Schleifpapiere, Schmirgelleinen oder feste Schleifkörper verwendet, die aus mit härtbaren Kunststoffen verbundenen körnigen Schleifmitteln, wie z. B. Korund, bestehen. Bekannte Schleif- oder Polierkörper der eingangs beschriebenen Art besitzen nur eine geringe Flexibilität, so daß deren Anschmjftjsamkeit zur Bearbeitung vieler Oberflächen nicht ausreichend ist. Zur Erhöhung der Flexibilität von Schleifkörperη ist es bekannt, diese mit einer elastischen Schicht aus Schaumkunststoff oder einem Material mit ähnlichen Eiqenschaftn zu hinterlegen. Die dadurch erzielte Anschmiegsamkeit reicht jedoch zur Bearbeitung insbesondere von Oberflächen mit Rundungen oder gewölbten Oberflächen nicht aus.Sandpaper, emery cloth or solid abrasives are used for sanding or polishing surfaces of any kind used, the granular abrasives associated with hardenable plastics, such. B. corundum exist. Known grinding or polishing bodies of the type described above have only a low degree of flexibility, so that their smoothness for processing many surfaces is not sufficient. To increase the flexibility of Schleifkörperη it is known to use this with a to deposit an elastic layer made of foam plastic or a material with similar properties. The thereby However, the smoothness achieved is sufficient for processing surfaces with rounded or curved surfaces in particular Surfaces not made.

509810/0511509810/0511

ο - ο -

Aufgabe der vorliegenden Erfindung ist es daher, einen Schleif- oder Polierkörner mit hoher Elastizität und guter Anschmieasamkeit zu schaffen.The object of the present invention is therefore to provide an abrasive or polishing grain with high elasticity and good To create intimacy.

Diese Aufgabe wird bei einem Schleif- oder Polierkörper der einaangs beschriebenen Art dadurch erreicht, daß das Bindemittel aus einem elastischen Schaumkunststoff besteht. Der erfindungsgemäße Schleif- oder polierkörper weist eine ausgezeichnete Flexibilität und Anschmiegsamkeit auf, weil der Schleifkörper selbst in dem oewünschten Maße nachgiebig und elastisch ist, während bei der Hinterlegung von wenig elastischen Schleifkörpern mit elastischen Schichten deren Elastizität weitgehend durch die härteren Schleifkörperschichten wieder aufgehoben wird. Der erfindungsgemäße Schleif- oder Polierkörper kann dadurch hergestellt werden, daß das Schleifmittel beliebig feiner Körnuna in den zu verschäumenden Kunststoff eingemischt wird. Wird der Schleif- oder Polierkörper durch Extrusion hergestellt, kann der Rohstoff mit dem Füllstoff (Schmirgel oder dergleichen) vermischt in den Einfülltrichter der Extruderschnecke eingegeben werden, so daß in dieser eine intensive Durchmengung stattfindet.In the case of a grinding or polishing body of the type described above, this object is achieved in that the binding agent consists of an elastic foam plastic. The grinding according to the invention or p olierkörper has excellent flexibility and conformability because of the grinding body is flexible and resilient even in the oewünschten extent, while the elasticity is largely offset by the harder abrasive body layers in the deposit of little resilient abrasive articles having elastic layers. The grinding or polishing body according to the invention can be produced by mixing the abrasive of any fine grain size into the plastic to be foamed. If the grinding or polishing body is produced by extrusion, the raw material can be mixed with the filler (emery or the like) and fed into the feed hopper of the extruder screw, so that intensive mixing takes place in it.

Das Bindemittel besteht zweckmäßigerweise aus einem mittelfesten Schaumkunststoff mit geschlossenen Poren. Geschlossenporige Schaumkunststoffe verhindern, daß Wasser oder andere Flüssigkeiten in diese, beispielsweise durch Kapillarwirkung, einziehen.The binder expediently consists of a medium-strength foam plastic with closed pores. Closed-cell foam plastics prevent water or other liquids from being drawn into them, for example by capillary action .

509810/051 1509810/051 1

Das in den Schaumkunststoff eingebrachte Schleifmittel läßt sich in einfacher Weise zu scheibenförmigen Körpern ausformen, die sodann in rotierenden Schleifgeräten Verwendung finden können. Oberflächenform und Stärke der Schleifscheiben läßt sich den gewünschten Zwecken anpassen. Die in Schaumkunststoffe eingebetteten Schleifmittel können auch zu rechteckigen Blöcken ausgeformt werden, die mit einem mechanischen Antrieb oder im Handbetrieb verwendet werden können. Schleifblöcke mit verschiedener Körnung können auch zu einem Block zusammengeklebt werden, wodurch ein Werkzeug mit zwei verschiedenen Feinheiten, z. B. zum Schleifen und Nachpolieren, entsteht.The abrasive introduced into the plastic foam can be easily converted into disc-shaped bodies shape, which can then be used in rotating grinders can find. The surface shape and thickness of the grinding wheels can be adapted to the desired purposes. The abrasives embedded in foam plastics can also be shaped into rectangular blocks that are filled with can be used with a mechanical drive or in manual mode. You can use sanding blocks with different grits can also be glued together to form a block, creating a tool with two different subtleties, e.g. B. to Grinding and polishing is created.

Der erfindungsgemäße Schleif- oder Polierkörper läßt sich nahezu bis zu seinem völligen Abrieb verwenden. Neben der auf die jeweilige Oberfläche abstimmbaren Flexibilität weist der erfindungsgemäße Schleif- oder Polierkörper den weiteren Vorteil auf, daß er nur ein geringes Gewicht aufweist.The grinding or polishing body according to the invention can be used almost up to its complete abrasion. In addition to the The grinding or polishing body according to the invention has the flexibility that can be adjusted to the respective surface further advantage that it is only light in weight.

Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In der Zeichnung zeigtEmbodiments of the invention are explained in more detail below with reference to the drawing. In the drawing shows

Fig, I eine perspektivisch dargestellte Schleifscheibe im Radialschnitt und1 shows a grinding wheel shown in perspective in radial section and

Fig. 2 einen Schnitt durch einen aus zwei Schichten bestehenden rechteckigen Schleif- oder Polierkörper.Fig. 2 is a section through a two-layer rectangular grinding or Polishing pad.

509810/051 1509810/051 1

Die Schleifscheibe 1 besteht aus einem feinporigen Schaumkunststoff 2 als Bindemittel, in das die feinen Schleifmittelkörner 3 eingeschäumt sind.The grinding wheel 1 consists of a fine-pored foam plastic 2 as a binder in which the fine abrasive grains 3 are foamed.

Der Schleifblock 4 besteht aus den quaderförmigen Schichten 5, 6, die durch eine Klebstoffzwischenschicht 7 miteinander verbunden sind. In die beiden Schichten sind Schleifmittel 3 verschieden feiner Körnung eingeschäumt.The sanding block 4 consists of the cuboid layers 5, 6, which by an adhesive intermediate layer 7 with each other are connected. Abrasives 3 of different grain sizes are foamed into the two layers.

509810/051 1509810/051 1

Claims (1)

PatentansprücheClaims { 1.'Schleif- oder Polierkörper, dessen feinkörnige Schleifmittel in einem härtbaren Kunststoff als Bindemittel eingebettet sind, dadurch gekennzeichnet, daß das Bindemittel aus elastischem Schaumkunststoff (2) besteht.{1. 'Abrasive or polishing media, its fine-grain abrasives are embedded in a hardenable plastic as a binder, characterized in that the binder consists of elastic foam plastic (2). 2, Schleif- oder Polierkörper nach Anspruch 1, dadurch gekennzeichnet, daß das Bindemittel aus einem mittelfesten Schaumkunststoff (2) mit geschlossenen Poren besteht.2, grinding or polishing body according to claim 1, characterized in that that the binder consists of a medium-strength foam plastic (2) with closed pores. 3. Schleif- oder Polierkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das in den Schaumkunststoff (2) eingebrachte Schleifmittel (3) zu einem scheibenförmigen Körper (1) ausgeformt ist.3. grinding or polishing body according to claim 1 or 2, characterized in that the in the foam plastic (2) introduced abrasive means (3) is shaped into a disk-shaped body (1). 4. Schleif- oder Polierkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das in den Schaumkunststoff (2) eingebrachte Schleifmittel (3) zu einem rechteckigen Block ausgeformt ist.4. grinding or polishing body according to claim 1 or 2, characterized in that the in the foam plastic (2) introduced abrasive (3) is shaped into a rectangular block. 5. Schleif- oder Polierkörper nach Anspruch 4, dadurch gekennzeichnet, daß zwei rechteckige Blöcke (5, 6) mit Schleifmitteln (3) verschiedener Körnung zu einem Block (4) verklebt sind.5. grinding or polishing body according to claim 4, characterized in that that two rectangular blocks (5, 6) with abrasives (3) of different grains to form a block (4) are glued. 509810/0511509810/0511 LeerseiteBlank page
DE19732342869 1973-08-24 1973-08-24 Polishing or grinding wheel or block - corundum particles are supported by foam plastics material Pending DE2342869A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732342869 DE2342869A1 (en) 1973-08-24 1973-08-24 Polishing or grinding wheel or block - corundum particles are supported by foam plastics material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732342869 DE2342869A1 (en) 1973-08-24 1973-08-24 Polishing or grinding wheel or block - corundum particles are supported by foam plastics material

Publications (1)

Publication Number Publication Date
DE2342869A1 true DE2342869A1 (en) 1975-03-06

Family

ID=5890662

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732342869 Pending DE2342869A1 (en) 1973-08-24 1973-08-24 Polishing or grinding wheel or block - corundum particles are supported by foam plastics material

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Country Link
DE (1) DE2342869A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095228A1 (en) * 1982-03-30 1983-11-30 Pilkington Brothers P.L.C. Treatment of coated glass
US4644703A (en) * 1986-03-13 1987-02-24 Norton Company Plural layered coated abrasive
EP0325857A2 (en) * 1988-01-25 1989-08-02 Edward J. Bifulk Curette sharpening hone and method of making
US5527215A (en) * 1992-01-10 1996-06-18 Schlegel Corporation Foam buffing pad having a finishing surface with a splash reducing configuration
DE102009041386A1 (en) 2009-09-12 2010-04-22 Daimler Ag Lapping tool for use in lapping device, has carrier material and lapping unit, where lapping unit is lapping paste or high viscous oil as carrier medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095228A1 (en) * 1982-03-30 1983-11-30 Pilkington Brothers P.L.C. Treatment of coated glass
US4644703A (en) * 1986-03-13 1987-02-24 Norton Company Plural layered coated abrasive
EP0325857A2 (en) * 1988-01-25 1989-08-02 Edward J. Bifulk Curette sharpening hone and method of making
EP0325857A3 (en) * 1988-01-25 1990-08-29 Edward J. Bifulk Curette sharpening hone and method of making
US5527215A (en) * 1992-01-10 1996-06-18 Schlegel Corporation Foam buffing pad having a finishing surface with a splash reducing configuration
DE102009041386A1 (en) 2009-09-12 2010-04-22 Daimler Ag Lapping tool for use in lapping device, has carrier material and lapping unit, where lapping unit is lapping paste or high viscous oil as carrier medium

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