US3163968A - Graphite coated abrasive belts - Google Patents
Graphite coated abrasive belts Download PDFInfo
- Publication number
- US3163968A US3163968A US248264A US24826462A US3163968A US 3163968 A US3163968 A US 3163968A US 248264 A US248264 A US 248264A US 24826462 A US24826462 A US 24826462A US 3163968 A US3163968 A US 3163968A
- Authority
- US
- United States
- Prior art keywords
- belt
- graphite
- sander
- abrasive
- coated abrasive
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 16
- 229910002804 graphite Inorganic materials 0.000 title claims description 16
- 239000010439 graphite Substances 0.000 title claims description 16
- 238000000576 coating method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 239000003082 abrasive agent Substances 0.000 claims description 7
- 230000001464 adherent effect Effects 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000012188 paraffin wax Substances 0.000 description 3
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- RGCLLPNLLBQHPF-HJWRWDBZSA-N phosphamidon Chemical compound CCN(CC)C(=O)C(\Cl)=C(/C)OP(=O)(OC)OC RGCLLPNLLBQHPF-HJWRWDBZSA-N 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 methyl siloxane Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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
Definitions
- An object of the present invention is to provide for the complete removal of the dust particles from the sanded surface.
- Another object of the invention is to provide a means for the elimination of static electricity from the sander belt.
- Still another object of the invention is to create a static-free environment for the sander dust particles to facilitate removal thereof.
- a coating of graphite to the sander belt on the surface opposite to that containing the abrasive material.
- a lubricating, low friction, adherent binder material is first applied to the surface of the belt to be coated with the graphite. Powdered graphite is then applied to the coating of said binder material.
- the graphite may be mixed with the lubricating, low friction, adherent binder material prior to application to the belt and the resultant mix may then be applied to the surface of the belt opposite the abrasive containing surface.
- Example I The side opposite the abrasive material on a sander belt measuring 6" by 240? was rubbed with a paraffin wax block until a total of 4 gms. of wax was applied to the belt. Next, gms. of powdered amorphous graphite was evenly applied to the wax coating and another 2 gms. of paraffin wax was evenly rubbed over the surface.
- the coated belt was placed on a standard sanding apparatus and used in sanding 4 foot by 8 foot plywood panels. It effectively eliminated any static electricity causing substantially all of the dust particles to travel along with the moving belt and to be removed by the 2 exhaust system located at one end of the moving sander belt.
- Example 11 To 85.5 gms. of a liquid comprising 60% by Weight high boiling (300 C.) aliphatic hydrocarbons and 40% by weight fluid silicone of the methyl siloxane type was added 90.5 gms. of powdered amorphous graphite and the mixture was stirred to a smooth consistency. A total of 25 gms. of the mixture was evenly applied to the side of a 6 inch by 240 inches sander belt opposite the abrasive containing side. This belt was immediately used in a sanding operation on 4 foot by 8 foot plywood panels and proved effective in eliminating the heretofore associated static electricity permitting the sanded dust particles to travel along with the traveling belt and to be removed by the exhaust system located at one end of the sander belt.
- a preferred powdered amorphous graphite for use in the present invention is that identified as Dixon 620, sold by The Dixon Crucible Co., Jersey City, New Jersey.
- Silicone fluids also may be mixed directly with the graphite without any hydrocarbon diluents where coating methods permit use of a more viscous composition.
- An abrasive sander belt having a surface coating on the side, opposite to that containing the abrasive material comprising a lubricating, low-friction, adherent binder and powdered amorphous graphite.
- An abrasive sander belt having a lubricating, lowfriction, adherent surface coating on the side opposite to that containing the abrasive material comprising a mixture of 19.4 parts of silicone fluid, 51.4 parts of powdered amorphous graphite and 29.1 parts of a high boiling aliphatic hydrocarbon diluent.
- An abrasive sander belt having a thin, lubricating, low-friction, adherent surface coating on the side opposite to that containing the abrasive material including from 0.5 to 1.5 grams of powdered amorphous graphite per square foot of the sander belt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
United States Patent 3,163,968 GRAPHHE COATEE) ABRASEVE BELTS Roscoe E. Nafus, 1136 N. 2nd St., Kelso, Wash. No Drawing. Filed Dec. 31, 1%2, Ser. No. 248,264- 4 Cim'rns. (Ci. 51-394) This invention relates to an abrasive sander belt having a graphite coating on the surface opposite the abrasive material.
In commercial belt sander operations using a continuous high speed traveling abrasive belt with a backing platen having a low friction material cover, a considerable amount of static electricity develops which causes dust particles to settle on the sanded article or to float in the air and prevents efiicient removal by the blower system. This is particularly true wherein large panels of 8 feet or more in length are being sanded and the blower system is located at the outlet end of the traveling belt. When such panels are sanded at the end away from the blower system the dust accumulation on the rest of the panel and in the air becomes particularly acute.
Not only does the dust create a hazard for the Workman in the area but the fine particles remaining on the panel surface work into balls on subsequent handling and stacking, often causing serious surface blemishes, requiring a down-grading of the costly finished panels and a subsequent lower market price.
Attempts to improve on the efiiciency of the dust removal have generally been in the direction of a more efiicient low friction material on the backing platens and/ or grounding the backing platens or other par-ts of the sander equipment. None of these methods has proved satisfactory in removing the dust particles. An object of the present invention, therefore, is to provide for the complete removal of the dust particles from the sanded surface.
Another object of the invention is to provide a means for the elimination of static electricity from the sander belt.
Still another object of the invention is to create a static-free environment for the sander dust particles to facilitate removal thereof.
These and other objects are accomplished generally by applying a coating of graphite to the sander belt on the surface opposite to that containing the abrasive material. A lubricating, low friction, adherent binder material is first applied to the surface of the belt to be coated with the graphite. Powdered graphite is then applied to the coating of said binder material. Alternatively, the graphite may be mixed with the lubricating, low friction, adherent binder material prior to application to the belt and the resultant mix may then be applied to the surface of the belt opposite the abrasive containing surface.
For ease and clarity in detailing the manner in which the present invention accomplishes these and other object and Without limiting ourselves except as stated hereinafter in the claims, the examples and description that follow are given as illustrative of the prepartion of a typical abrasive sander belt having the desired characteristics.
Example I The side opposite the abrasive material on a sander belt measuring 6" by 240? was rubbed with a paraffin wax block until a total of 4 gms. of wax was applied to the belt. Next, gms. of powdered amorphous graphite was evenly applied to the wax coating and another 2 gms. of paraffin wax was evenly rubbed over the surface.
The coated belt was placed on a standard sanding apparatus and used in sanding 4 foot by 8 foot plywood panels. It effectively eliminated any static electricity causing substantially all of the dust particles to travel along with the moving belt and to be removed by the 2 exhaust system located at one end of the moving sander belt.
Example 11 To 85.5 gms. of a liquid comprising 60% by Weight high boiling (300 C.) aliphatic hydrocarbons and 40% by weight fluid silicone of the methyl siloxane type was added 90.5 gms. of powdered amorphous graphite and the mixture was stirred to a smooth consistency. A total of 25 gms. of the mixture was evenly applied to the side of a 6 inch by 240 inches sander belt opposite the abrasive containing side. This belt was immediately used in a sanding operation on 4 foot by 8 foot plywood panels and proved effective in eliminating the heretofore associated static electricity permitting the sanded dust particles to travel along with the traveling belt and to be removed by the exhaust system located at one end of the sander belt.
The particular lubricating, low friction, adherent binder graphite compositions illustrated above proved not only effective upon first using in the sanding operation, but continued to be completely effective throughout the life of the sander belt. Other types of graphite, such as flake or vein were not so effective in that they did not adhere to the binder or the belt under the rugged use conditions associated with such sanding operations. A preferred powdered amorphous graphite for use in the present invention is that identified as Dixon 620, sold by The Dixon Crucible Co., Jersey City, New Jersey.
Silicone fluids also may be mixed directly with the graphite without any hydrocarbon diluents where coating methods permit use of a more viscous composition.
While specific details of preferred embodiments have been set forth above, it will be apparent that many changes and modifications may be made therein without departing from the spirit of the invention. It will therefore be understood that what has been described herein is intended to be illustrative only, and is not intended to limit the scope of the invention.
' What is claimed is:
1. An abrasive sander belt having a surface coating on the side, opposite to that containing the abrasive material comprising a lubricating, low-friction, adherent binder and powdered amorphous graphite.
2. The sander belt of claim 1 wherein said binder is selected from the group consisting of paraffin Wax and silicone fluids.
3. An abrasive sander belt having a lubricating, lowfriction, adherent surface coating on the side opposite to that containing the abrasive material comprising a mixture of 19.4 parts of silicone fluid, 51.4 parts of powdered amorphous graphite and 29.1 parts of a high boiling aliphatic hydrocarbon diluent.
4. An abrasive sander belt having a thin, lubricating, low-friction, adherent surface coating on the side opposite to that containing the abrasive material including from 0.5 to 1.5 grams of powdered amorphous graphite per square foot of the sander belt.
References Cited by the Examiner UNITED STATES PATENTS 2,356,367 8/44 Wright 2s2 29 2,624,160 1/53 Harper -51-141 2,700,623 1/55 Hall 252 12 2,854,351 9/58 Wilson 252-29 3,047,526 7/62 Stephens 252-29 x FOREIGN PATENTS 8,598 4/84 Great Britain. Of 1884 LESTER M. SWINGLE, Primary Examiner. FRANK H. BRONAUGH, Examiner.
Claims (1)
1. AN ABRASIVE SANDER BELT HAVING A SURFACE COATING ON THE SIDE OPPOSITE TO THAT CONTAINING THE ABRASIVE MATERIAL COMPRISING A LUBRICATING, LOW-FRICTION, ADHERENT BINDER AND POWDERED AMORPHOUS GRAPHITE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US248264A US3163968A (en) | 1962-12-31 | 1962-12-31 | Graphite coated abrasive belts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US248264A US3163968A (en) | 1962-12-31 | 1962-12-31 | Graphite coated abrasive belts |
Publications (1)
Publication Number | Publication Date |
---|---|
US3163968A true US3163968A (en) | 1965-01-05 |
Family
ID=22938360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US248264A Expired - Lifetime US3163968A (en) | 1962-12-31 | 1962-12-31 | Graphite coated abrasive belts |
Country Status (1)
Country | Link |
---|---|
US (1) | US3163968A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3900690A (en) * | 1971-07-02 | 1975-08-19 | Glasurit Werke Winkelmann | Process for the production of dimensionally stable, planar materials coated on one side |
US3992178A (en) * | 1973-04-17 | 1976-11-16 | Fabrika Ab Eka | Flexible coated abrasive with graphite outer layer |
DE3808426A1 (en) * | 1988-03-14 | 1989-09-28 | Norddeutsche Schleifmittel Ind | FLEXIBLE GRINDING TOOL |
US5108463A (en) * | 1989-08-21 | 1992-04-28 | Minnesota Mining And Manufacturing Company | Conductive coated abrasives |
US5137542A (en) * | 1990-08-08 | 1992-08-11 | Minnesota Mining And Manufacturing Company | Abrasive printed with an electrically conductive ink |
US5203884A (en) * | 1992-06-04 | 1993-04-20 | Minnesota Mining And Manufacturing Company | Abrasive article having vanadium oxide incorporated therein |
US5219463A (en) * | 1990-02-13 | 1993-06-15 | Minnesota Mining And Manufacturing Company | Abrasives containing ammonium fluoride-based grinding aid |
US5232468A (en) * | 1990-02-13 | 1993-08-03 | Minnesota Mining And Manufacturing Company | Abrasive products bonded with color stabilized base catalyzed phenolic resin |
US5328716A (en) * | 1992-08-11 | 1994-07-12 | Minnesota Mining And Manufacturing Company | Method of making a coated abrasive article containing a conductive backing |
US5560753A (en) * | 1992-02-12 | 1996-10-01 | Minnesota Mining And Manufacturing Company | Coated abrasive article containing an electrically conductive backing |
WO2002062532A1 (en) * | 2001-02-08 | 2002-08-15 | 3M Innovative Properties Company | Antistatic coating containing graphite for backings of abrasive sheets |
US20060251892A1 (en) * | 2002-12-04 | 2006-11-09 | Marc Husemann | Anti-static self-adhesive strip |
US20130309952A1 (en) * | 2010-09-30 | 2013-11-21 | Napoleon Abrasives S.P.A. | Antistatic flexible abrasive with a combined support |
US20170173761A1 (en) * | 2015-12-22 | 2017-06-22 | Robert Bosch Gmbh | Method for Dry Production of a Sliding Layer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2356367A (en) * | 1940-11-22 | 1944-08-22 | Jasco Inc | High temperature lubricant |
US2624160A (en) * | 1950-06-12 | 1953-01-06 | Grizzly Mfg Company | Platen lubricating means |
US2700623A (en) * | 1950-04-26 | 1955-01-25 | Electrofilm Inc | Process of bonding solid lubricant to a metal surface |
US2854351A (en) * | 1953-06-09 | 1958-09-30 | Wilson Harry Walter | Method of applying dressing for prolonging the effective life of cloth belts and resultant article |
US3047526A (en) * | 1959-11-16 | 1962-07-31 | Clifford A Stephens | Leather-coating composition |
-
1962
- 1962-12-31 US US248264A patent/US3163968A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2356367A (en) * | 1940-11-22 | 1944-08-22 | Jasco Inc | High temperature lubricant |
US2700623A (en) * | 1950-04-26 | 1955-01-25 | Electrofilm Inc | Process of bonding solid lubricant to a metal surface |
US2624160A (en) * | 1950-06-12 | 1953-01-06 | Grizzly Mfg Company | Platen lubricating means |
US2854351A (en) * | 1953-06-09 | 1958-09-30 | Wilson Harry Walter | Method of applying dressing for prolonging the effective life of cloth belts and resultant article |
US3047526A (en) * | 1959-11-16 | 1962-07-31 | Clifford A Stephens | Leather-coating composition |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3900690A (en) * | 1971-07-02 | 1975-08-19 | Glasurit Werke Winkelmann | Process for the production of dimensionally stable, planar materials coated on one side |
US3992178A (en) * | 1973-04-17 | 1976-11-16 | Fabrika Ab Eka | Flexible coated abrasive with graphite outer layer |
DE3808426A1 (en) * | 1988-03-14 | 1989-09-28 | Norddeutsche Schleifmittel Ind | FLEXIBLE GRINDING TOOL |
US5108463A (en) * | 1989-08-21 | 1992-04-28 | Minnesota Mining And Manufacturing Company | Conductive coated abrasives |
US5219463A (en) * | 1990-02-13 | 1993-06-15 | Minnesota Mining And Manufacturing Company | Abrasives containing ammonium fluoride-based grinding aid |
US5232468A (en) * | 1990-02-13 | 1993-08-03 | Minnesota Mining And Manufacturing Company | Abrasive products bonded with color stabilized base catalyzed phenolic resin |
US5137542A (en) * | 1990-08-08 | 1992-08-11 | Minnesota Mining And Manufacturing Company | Abrasive printed with an electrically conductive ink |
US5560753A (en) * | 1992-02-12 | 1996-10-01 | Minnesota Mining And Manufacturing Company | Coated abrasive article containing an electrically conductive backing |
US5203884A (en) * | 1992-06-04 | 1993-04-20 | Minnesota Mining And Manufacturing Company | Abrasive article having vanadium oxide incorporated therein |
US5328716A (en) * | 1992-08-11 | 1994-07-12 | Minnesota Mining And Manufacturing Company | Method of making a coated abrasive article containing a conductive backing |
WO2002062532A1 (en) * | 2001-02-08 | 2002-08-15 | 3M Innovative Properties Company | Antistatic coating containing graphite for backings of abrasive sheets |
US20030204007A1 (en) * | 2001-02-08 | 2003-10-30 | 3M Innovative Properties Company | Coated abrasive articles containing graphite |
US7294667B2 (en) | 2001-02-08 | 2007-11-13 | 3M Innovative Properties Company | Coated abrasive articles containing graphite |
US20060251892A1 (en) * | 2002-12-04 | 2006-11-09 | Marc Husemann | Anti-static self-adhesive strip |
US20130309952A1 (en) * | 2010-09-30 | 2013-11-21 | Napoleon Abrasives S.P.A. | Antistatic flexible abrasive with a combined support |
US20170173761A1 (en) * | 2015-12-22 | 2017-06-22 | Robert Bosch Gmbh | Method for Dry Production of a Sliding Layer |
US10537980B2 (en) * | 2015-12-22 | 2020-01-21 | Robert Bosch Gmbh | Method for dry production of a sliding layer |
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