EP0333035B2 - Flexibles Schleifwerkzeug - Google Patents
Flexibles Schleifwerkzeug Download PDFInfo
- Publication number
- EP0333035B2 EP0333035B2 EP89104191A EP89104191A EP0333035B2 EP 0333035 B2 EP0333035 B2 EP 0333035B2 EP 89104191 A EP89104191 A EP 89104191A EP 89104191 A EP89104191 A EP 89104191A EP 0333035 B2 EP0333035 B2 EP 0333035B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- finish
- back side
- grinding assembly
- constituent
- assembly according
- 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
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract 4
- 239000011707 mineral Substances 0.000 claims abstract 4
- 239000004753 textile Substances 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 9
- 239000012141 concentrate Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 238000009958 sewing Methods 0.000 description 13
- 239000000835 fiber Substances 0.000 description 11
- 239000004615 ingredient Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 101000950718 Homo sapiens Inositol oxygenase Proteins 0.000 description 2
- 102100037804 Inositol oxygenase Human genes 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2041—Two or more non-extruded coatings or impregnations
- Y10T442/2049—Each major face of the fabric has at least one coating or impregnation
- Y10T442/2057—At least two coatings or impregnations of different chemical composition
- Y10T442/2074—At least one coating or impregnation contains particulate material
Definitions
- the invention relates to a grinding arrangement consisting of a sanding belt and a stationary support element and a method for Making an abrasive belt for this arrangement.
- the distance between the Bottom of the warp yarn and the highest point of the sewing thread in the order of 0.3 to 0.5 mm are at a center distance of the fiber strands of 1.8 mm.
- This is supported in the grinding zone Sanding belt over its highest places on the back the support structure of the grinding machine. If the Support structure formed by stationary support elements over which the sanding belt slides can the uneven shape of the back of the sanding belt have a strong abrasive effect, especially if the support elements provided with graphite-containing sliding surfaces are that stretched over pressure bars the friction between Back of the sanding belt and pressure bar surface should decrease. You tried that roughness on the back of the underlay due to a fleece overlay to reduce (WO 86/02306); however this is very complex.
- the invention is based, which wear and tear of the back of the grinding tool on the support structure of the grinding machine reduce and reduce the mechanical properties to improve the grinding tool.
- the ingredient stiffens the one that encloses it Layer and thereby increases the resistance of the tool. While it was previously required this resilience through suitable selection the hardness, the layer thickness and the penetration depth of the Backsize finish can affect this Parameters can now be chosen more freely.
- the invention is based on the finding that on the one hand the so far usual, hard settings of the rear side finish the wear properties of the tool adversely affect, and that second a soft adjustment of the rear side finish wear caused by the back of the tool reduced.
- Lubricants such as graphite dust
- a variety of lubricant-penetrated fiber bundles Sewing threads in their entirety can be low-friction Sliding and contact surface of the sanding belt form opposite the support element.
- the softness or wearability of the back finish is expediently chosen so that the highest back places after about one Tenth of the intended life of the sanding belt largely for the formation of low-sliding areas are worn out. This corresponds to marketable products with a duration of about in half an hour.
- the armoring effect of the platelet-shaped particles is better, the more they are arranged parallel to the tool extension.
- An advantageous embodiment of the invention is therefore characterized in that the directional component running parallel to the tool extension predominates in the alignment of the particles. This can also be favorable with regard to the sliding and wear properties of the tool.
- a multiple mutual overlap of neighboring particles also contributes to the stiffening. This is especially true when the particles are tightly attached to the back surface of the base and are also close to each other.
- Such a state can be achieved according to the invention by ensuring that the finish, at least in a manufacturing phase in which the strip runs horizontally or slightly inclined, is so low-viscosity that the particles accumulate near the rear surface of the base.
- the particles form a layer sedimented on the back of the underlay, while that part of the finish on the back that is closer to their free surface is largely free or significantly poorer in particles.
- the advantages of this construction lie on the one hand in the improved stiffening effect of the particles and on the other hand in the fact that they are absent in the outermost finishing zone, which is decisive for the sliding properties, and can therefore be chosen without regard to their sliding properties.
- a high specific weight of the substrate is advantageous for lowering the particles onto the back surface of the base, for example in the order of 5 g / cm 3 .
- the amount of the ingredient applied to the back of the base should be at least 3 g / m 2 , preferably more than 8 g / m 2 .
- the proportion of ingredients in the cured rear side finish should preferably be more than 8% by weight, for example around 15% by weight.
- the ingredient advantageously contains layer-crystalline particles, which are also preferred should have in the sliding direction.
- Iron mica has proven to be excellent. Likewise, other types of mica can be used are, expediently in context with a comparatively soft Binder.
- Binders especially synthetic resins and Plastic dispersions or mixtures of such Fabrics.
- Backside finishes have proven their worth made from phenolic resin-latex mixtures.
- the comparatively soft back finish according to the invention preferably contains as a binder component in the not yet hardened state phenolic resin and an acrylic hemester copolymer dispersion in one Weight ratio of 1: 2.
- phenolic resin and an acrylic hemester copolymer dispersion in one Weight ratio of 1: 2.
- iron mica proved possibly in combination with other ingredients or fillers, as advantageous, especially when using a graphite press shoe surface as a support element.
- FIG. 1 comprises a textile underlay consisting of a cross-laid scrim 1 and a longitudinal laid scrim 2, which means Sewing threads 3 composed as a knitted fabric are.
- the textile layer is through one in the drawing core finish not appearing in itself solidified, bears on the front of a grain layer 4, which by means of a base binder layer 5 and a cover binder layer 6 is bound and is provided on the back with a rear finish, which are only shown in the left half of FIG. 1 is between the level of contact Fiber strands 1 and 2 and the highest points of the Sewing threads 3 form depressions 8, which with the Backside finish mass 7 to be filled.
- the backside finish is carried out in such a way that in the spaces 8 a has much greater thickness 9 than on the inflated Place the fiber strands 2 and the sewing threads 3.
- the excess is applied by means of a Doctor knife, so that the highest Points of the threads 3 not or only a little of the Backside finish 7 are covered.
- the particles accumulate near the base a little bit in area 12, while near the surface Area 13 becomes poorer in ingredient. It takes place then partly when drying, partly by drawing in a certain amount of binder in the textile layer Loss of substance in the finish from the back Formed layer 7 instead, so that this in the wells 8 comes up a little and the wave structure of the Document emerges. Still, the gaps are more filled than in the prior art is common.
- Threads 3 either occur after manufacture emerge without coating or lose at the latest after a short period of operation due to wear Line 11 the thin coating on them and then form wing elements 10 for the Creation of those grinding machine structures that a pressure on the sanding belt from the back exercise.
- the sewing threads in the Back appear at regular intervals in such a way that such a surface element 10 on a Grid of 1.7 x 1.1 mm comes.
- mica has been linked to of the invention under the trademark MIOX the Kärntner Montanindustrie GmbH, Klagenfurt, distributed product proven, its particles Average diameter 40 ⁇ m and thickness of 2-4 ⁇ m.
- Comparative tests were carried out with two abrasive belts, which corresponded in terms of the backing, finish and grain application formed by a sewing fabric and differed only in that one was finished on the back in a conventional manner, while the other was provided with a backside finish according to the invention.
- This consisted of 50 parts by weight of phenolic resin and 100 parts by weight of latex dispersion with a solids content of 25 parts and 20 parts of MIOX iron mica of the classification given above. The amount applied was 25 g / m 2 (dry).
- the one achieved according to the invention is even more striking 4, in which the Mass decrease of the felt in grams over the Operating time is plotted in hours, you will namely less than half of the conventional Felt loss reduced.
- the rigidity of the tape according to the invention was considerably larger than that of the conventional one.
Description
Claims (9)
- Schleifanordnung bestehend aus einem Schleifband mit einer flexiblen Unterlage (1, 2, 3) mit Textilstruktur, die eine Rückseitenappretur (7) trägt, die einen aus überwiegend plättchenförmigen, mineralischen Partikeln bestehenden Inhaltsstoff in einem Anteil an der ausgehärteten Rückseitenappretur von mindestens 2 Gew.-% enthält, und einem stationären Stützelement, über das das Schleifband hinweggleitet, wobei der Inhaltsstoff ein Glimmer, insbesondere Eisenglimmer, ist.
- Schleifanordnung bestehend aus einem Schleifband mit einer flexiblen Unterlage (1, 2, 3) mit Textilstruktur, die eine Rückseitenappretur (7) trägt, die einen aus überwiegend plättchenförmigen, mineralischen Partikeln bestehenden Inhaltsstoff in einem Anteil an der ausgehärteten Rückseitenappretur von mindestens 2 Gew.-% enthält, und einem stationären Stützelement, über das das Schleifband hinweggleitet, wobei die Konzentration des Inhaltsstoffs innerhalb der Appretur nahe der die Appretur tragenden Oberfläche der Unterlage größer ist als nahe der freien Oberfläche der Appretur.
- Schleifanordnung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß die Partikeln des Inhaltsstoffs in der Rückseitenappretur (7) eine überwiegende Richtungskomponente parallel zur Bandoberfläche aufweisen.
- Schleifanordnung nach Anspruch 3, gekennzeichnet durch vielfache gegenseitige Überlappung benachbarter Partikeln.
- Schleifanordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Rückseitenappretur eine Menge des Inhaltsstoffs von mindestens 3 g/m2 enthält.
- Schleifanordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Inhaltsstoff von schichtkristallinen Partikeln gebildet wird.
- Schleifanordung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Härte der Rückseitenappretur nicht größer als 90 Shore A ist.
- Schleifanordnung nach Anspruch 7, dadurch gekennzeichnet, daß die Härte nicht größer als 85 Shore A ist.
- Verfahren zum Herstellen eines Schleifbands für eine Schleifanordnung nach einem der Ansprüche 1 bis 8, bei dem auf die Rückseite einer Unterlage eine Rückseitenappretur im flüssigen Zustand aufgetragen und erhärten gelassen wird, dadurch gekennzeichnet, daß die Appretur einen spezifisch schwereren, plättchenförmigen, mineralischen Inhaltsstoff enthält und mindestens während eines Teils des Herstellungsprozesses eine derart geringe Viskosität aufweist, daß sich die plättchenförmigen Inhaltsstoffe bei horizontaler oder schwach geneigter Führung der Unterlage nahe der Oberfläche der Unterlage anreichern.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8916124U DE8916124U1 (de) | 1988-03-14 | 1989-03-09 | Flexibles Schleifwerkzeug |
AT89104191T ATE63076T1 (de) | 1988-03-14 | 1989-03-09 | Flexibles schleifwerkzeug. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3808426 | 1988-03-14 | ||
DE3808426A DE3808426C2 (de) | 1988-03-14 | 1988-03-14 | Flexibles Schleifwerkzeug und Verfahren zu dessen Herstellung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0333035A1 EP0333035A1 (de) | 1989-09-20 |
EP0333035B1 EP0333035B1 (de) | 1991-05-02 |
EP0333035B2 true EP0333035B2 (de) | 1999-06-23 |
Family
ID=6349670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89104191A Expired - Lifetime EP0333035B2 (de) | 1988-03-14 | 1989-03-09 | Flexibles Schleifwerkzeug |
Country Status (7)
Country | Link |
---|---|
US (1) | US4960442A (de) |
EP (1) | EP0333035B2 (de) |
AT (1) | ATE63076T1 (de) |
AU (1) | AU607058B2 (de) |
CA (1) | CA1314710C (de) |
DE (2) | DE3808426C2 (de) |
ES (1) | ES2022732T5 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4925457B1 (en) * | 1989-01-30 | 1995-09-26 | Ultimate Abrasive Syst Inc | Method for making an abrasive tool |
US6406577B1 (en) | 1991-12-20 | 2002-06-18 | 3M Innovative Properties Company | Method of making abrasive belt with an endless, seamless backing |
RU2116186C1 (ru) * | 1991-12-20 | 1998-07-27 | Миннесота Майнинг Энд Мэнюфекчуринг Компани | Лента с абразивным покрытием |
US6406576B1 (en) | 1991-12-20 | 2002-06-18 | 3M Innovative Properties Company | Method of making coated abrasive belt with an endless, seamless backing |
US5681612A (en) * | 1993-06-17 | 1997-10-28 | Minnesota Mining And Manufacturing Company | Coated abrasives and methods of preparation |
AU1735295A (en) * | 1994-02-22 | 1995-09-04 | Minnesota Mining And Manufacturing Company | Method for making an endless coated abrasive article and the product thereof |
US5578096A (en) * | 1995-08-10 | 1996-11-26 | Minnesota Mining And Manufacturing Company | Method for making a spliceless coated abrasive belt and the product thereof |
US20020146963A1 (en) * | 2001-02-08 | 2002-10-10 | 3M Innovative Properties Company | Composition containing graphite |
US20030186630A1 (en) * | 2002-03-29 | 2003-10-02 | Lam Research Corporation | Reinforced chemical mechanical planarization belt |
US7497768B2 (en) * | 2005-08-11 | 2009-03-03 | 3M Innovative Properties Company | Flexible abrasive article and method of making |
US11890723B2 (en) * | 2015-05-08 | 2024-02-06 | Mirka Ltd | Abrasive belt grinding product |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB900867A (en) * | 1959-07-27 | 1962-07-11 | George Conrad Riegger | Sandpaper |
US3163968A (en) * | 1962-12-31 | 1965-01-05 | Roscoe E Nafus | Graphite coated abrasive belts |
US3942959A (en) * | 1967-12-22 | 1976-03-09 | Fabriksaktiebolaget Eka | Multilayered flexible abrasive containing a layer of electroconductive material |
US4038047A (en) * | 1969-04-14 | 1977-07-26 | Norton Company | Method of making a flexible resilient abrasive |
US3906684A (en) * | 1971-05-20 | 1975-09-23 | Norton Co | Abrasive articles and their method of manufacture |
US4163647A (en) * | 1971-06-23 | 1979-08-07 | Norton Company | Method for producing coated abrasives |
US3992178A (en) * | 1973-04-17 | 1976-11-16 | Fabrika Ab Eka | Flexible coated abrasive with graphite outer layer |
CA1031967A (en) * | 1973-11-07 | 1978-05-30 | Jarvis M. Mcgarvey | Endless abrasive belt, and laminated patch splice therefor |
US4111667A (en) * | 1977-04-15 | 1978-09-05 | Norton Company | Woven polyester backed flexible coated abrasive having microballoons in backsize |
US4225321A (en) * | 1978-01-09 | 1980-09-30 | The Carborundum Company | Heat set and destretched polyester backing material in coated abrasive manufacture |
EP0013486B1 (de) * | 1978-12-12 | 1983-08-03 | Interface Developments Limited | Flexibles Schleifelement und Verfahren zu dessen Herstellung |
US4255164A (en) * | 1979-04-30 | 1981-03-10 | Minnesota Mining And Manufacturing Company | Fining sheet and method of making and using the same |
DE2918103C2 (de) * | 1979-05-04 | 1985-12-05 | Sia Schweizer Schmirgel- & Schleifindustrie Ag, Frauenfeld | Verfahren zum Auftragen eines Grundbindemittels und Vorrichtung zur Durchführung desselben |
US4543106A (en) * | 1984-06-25 | 1985-09-24 | Carborundum Abrasives Company | Coated abrasive product containing hollow microspheres beneath the abrasive grain |
EP0197083A1 (de) * | 1984-10-09 | 1986-10-15 | Minnesota Mining And Manufacturing Company | Beschichtete schleiffolie mit verbesserter unterlage |
JPS62246476A (ja) * | 1986-04-18 | 1987-10-27 | Fuji Photo Film Co Ltd | 研磨テ−プの製造方法 |
-
1988
- 1988-03-14 DE DE3808426A patent/DE3808426C2/de not_active Revoked
-
1989
- 1989-03-09 EP EP89104191A patent/EP0333035B2/de not_active Expired - Lifetime
- 1989-03-09 ES ES89104191T patent/ES2022732T5/es not_active Expired - Lifetime
- 1989-03-09 DE DE8989104191T patent/DE58900099D1/de not_active Expired - Fee Related
- 1989-03-09 AT AT89104191T patent/ATE63076T1/de not_active IP Right Cessation
- 1989-03-14 CA CA000593635A patent/CA1314710C/en not_active Expired - Fee Related
- 1989-03-14 AU AU31312/89A patent/AU607058B2/en not_active Ceased
- 1989-03-14 US US07/323,314 patent/US4960442A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE63076T1 (de) | 1991-05-15 |
DE3808426A1 (de) | 1989-09-28 |
CA1314710C (en) | 1993-03-23 |
DE3808426C2 (de) | 1995-01-26 |
AU3131289A (en) | 1989-09-14 |
ES2022732T5 (es) | 1999-11-01 |
EP0333035B1 (de) | 1991-05-02 |
DE58900099D1 (de) | 1991-06-06 |
ES2022732B3 (es) | 1991-12-01 |
AU607058B2 (en) | 1991-02-21 |
EP0333035A1 (de) | 1989-09-20 |
US4960442A (en) | 1990-10-02 |
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