WO2010086371A1 - Schleifscheibe mit pflanzlichen samenkapseln als füllstoff und verfahren zu dessen herstellung - Google Patents
Schleifscheibe mit pflanzlichen samenkapseln als füllstoff und verfahren zu dessen herstellung Download PDFInfo
- Publication number
- WO2010086371A1 WO2010086371A1 PCT/EP2010/050996 EP2010050996W WO2010086371A1 WO 2010086371 A1 WO2010086371 A1 WO 2010086371A1 EP 2010050996 W EP2010050996 W EP 2010050996W WO 2010086371 A1 WO2010086371 A1 WO 2010086371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grinding wheel
- plant seeds
- mixture
- seeds
- abrasive grain
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical 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
- B24D3/20—Physical 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical 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
- B24D3/20—Physical 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
- B24D3/28—Resins or natural or synthetic macromolecular compounds
- B24D3/32—Resins or natural or synthetic macromolecular compounds for porous or cellular structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/348—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties utilised as impregnating agent for porous abrasive bodies
Definitions
- the present invention relates to a resin-bonded
- Abrasive wheel in which vegetable seed capsules are used as pore formers, and a method for producing such grinding wheels.
- a grinding wheel consists essentially of abrasive grain
- Binder material and pore space is composed of the natural interstices that arise between the abrasive grains and the pores introduced into the grinding wheel by pore formers.
- the pores are also influenced in size and number by the pressing pressure. This results in a low pore space at high pressure, while a low pressure results in a correspondingly larger pore space.
- a low compression pressure also requires a softer disc.
- other fillers in grinding wheels can also be used. These may be abrasive (e.g., cooling), thus assisting the grinding process or serving to stabilize (burst resistance, flexibility) the grinding wheel.
- Roughness of the material surface depends essentially on the size of the abrasive grain.
- Abrasive grains usually consist of hard, brittle materials and are routinely used in a wide range of sizes.
- the binder material may be a synthetic resin as in the present application. It serves to hold the individual abrasive grains together. The pore space makes it possible, among other things, to remove the material chip safely, but it can also be used to hold coolant. By varying the volume ratio of the individual components to each other, the properties of the grinding wheel can be adjusted, so that one can achieve the desired grinding results for each material to be processed. State of the art
- Organic pore formers are previously used only in ceramic bonded grinding wheels.
- a ceramic bonded grinding wheel which can be produced in a single firing process and thereby manages without the use of a binder.
- Walnut shells, plastic beads or foamed organic material are used as pore formers.
- the starting material used is a sol-gel based on boehmite seed crystals, which is mixed with walnut shells with an average size of 275 ⁇ m. Subsequently, this mixture is poured into the desired shape, dried and finally fired at a maximum temperature of 1300 ° C.
- the boehmite crystallizes to ⁇ -alumina.
- the walnut shells burn without residue at these high temperatures and therefore leave pores in the grinding wheel.
- the final product has a porosity of about 40% and is sufficiently stable to be used as a grinding wheel.
- US 5,203,886 A describes a grinding wheel which consists of a combination of pore formers, namely hollow aluminum oxide beads and organic pore-forming agent, and a sol-gel of aluminum oxide abrasive grains.
- the organic pore former may be made from nutshells, carbon, flower seeds, starch, sugar or wood particles.
- the organic pore-forming agent completely decomposes on firing of the grinding wheel, leaving open pores in the grinding wheel.
- the resulting achieved porosity of the grinding wheel is about 1 to 12% of its volume.
- the temperature-resistant, hollow, thin-walled aluminum oxide beads give the grinding wheel, as closed pores, additional porosity of up to 70% while at the same time ensuring sufficient stability.
- Pore formers are a variety of substances, such as wood, hemp, flax, paper and grains called various types. However, these pore formers burn in the process described during the firing process.
- the stoneware produced by this process is suitable, inter alia, for use as artificial millstones in grain mills.
- the abrasive article comprises a binder (phenolic resins, epoxy resins, imides), abrasive grain and at least one functional filler.
- the functional filler here is a metal alloy, which can be selected depending on the material to be processed. In the production, a firing temperature in the range of 15O 0 C to 25O 0 C is applied, and the curing process takes a total of 12 to 76 hours.
- the binders used include phenolic resins and epoxy resins.
- the abrasive grain used has diameters of about 1 ⁇ m to about 10 mm. The curing of these grinding wheels takes place over a period of 8 to 15 hours at temperatures of 66 to 12O 0 C.
- DE 102 97 124 T5 describes a method for producing a glazed tool with superabrasive, in which a fritted glass bonding composition is selected Superabrasive component, a filler component with hollow bodies and the glass bonding composition are combined, and the combined components are fired at about 600 to 85O 0 C.
- Object of the present invention is resin-bonded
- this object is achieved in that the plant seeds are included in the finished grinding wheel.
- the grinding wheel consists of a mixture of abrasive grain
- Binders and pore formers wherein the pore formers are plant seeds, and the plant seeds are not burned in the production, but are included in the finished grinding wheel.
- the plant seeds are used in the manufacture of the grinding wheel as organic pore-forming agent.
- the plant seeds are not - as in the production of ceramic bonded grinding wheels usual - burned during manufacture, but remain intact and form an important part of the finished grinding wheel.
- the plant seeds are doing several functions. They have as part of the grinding wheel a certain support effect, which prevents the early breaking out of the abrasive grain.
- the plant seeds can also fulfill the task of conventional pores and provide, for example, for the removal of the grinding chips. Since the plant seeds are relatively soft, they can be deformed by the usually harder grinding chips, and then transport them away in the newly formed pore space. It is also possible that the hot grinding chips, which have temperatures of between 1500 ° C and 2000 ° C, the plant seeds Burn grinding process. The resulting pore space is then comparable to that of a conventional pore and can accordingly serve for the removal of the sanding chip. In addition, when grinding non-ferrous metals by the addition of pore formers in the form of plant seeds, the clogging of the disc can be prevented.
- Plant seeds come in a variety of shapes and sizes, so that the porosity of the grinding tool can be adjusted almost arbitrarily. This is particularly important because the size of the resulting chip may vary depending on the size of the abrasive grain and the nature of the workpiece.
- the resin-bonded grinding wheel of the present invention consists of 60 to 90 wt .-% of abrasive grain and 10 to 40 wt .-% of binder.
- the plant seeds can make up to 80% by weight of the binder.
- various other known fillers can be used.
- abrasive grain are essentially all commonly used as abrasive grain materials. These include corundum, silicon carbides, chromium oxides, cubic boron nitride, diamonds, silicon oxides, zirconium oxides, garnet and emery, and mixtures thereof.
- the abrasive grains may have different sizes in the range of 0.5 ⁇ m to 5000 ⁇ m. The size and the material of the abrasive grains can be selected depending on the workpiece to be machined.
- the abrasive grain has a particle size of 105 microns to 2830 microns, more preferably from 250 microns to 2830 microns.
- oily seeds such as rapeseed
- the oil contained in the plant seeds causes a lubricating effect, ie the oil reduces the friction of the abrasive grain during chip formation and thus reduces the heat development during grinding.
- the oil increases the service life of the grinding wheel and on the other hand the workpiece before protected against undesired hardening.
- clover In addition to oil-containing plant seeds and poppy seed, clover, lupine, mustard, Seradella or Wickensamen or similar plant seeds can be used.
- the binder is a mixture of a synthetically prepared polymeric compound and fillers.
- the polymeric compound may be synthetic resin, which may be used both in liquid form and in powder form. Suitable resins are, for example, polyimides, phenolic resins, epoxy resins, unsaturated polyesters, and the like.
- the invention also relates to a method for producing the grinding wheels according to the invention.
- a free-flowing mixture of abrasive grain, binder and plant seeds is produced. This mixture is poured evenly into a preformed mold and then pressed to a predetermined volume. The press is then subjected to a curing program in an oven, where it is exposed to temperatures of up to 250 ° C. The pressing and curing of the grinding wheel can also be done in one step.
- the grinding wheel mixture is filled with extremely uniform distribution in a mold.
- the pressing in a conventional press, for example a hydraulic press, under pressing pressures of 15 to 45 N / mm 2 , preferably 20 to 35 N / mm 2 used, more preferably pressed from 30 N / mm 2 to form a green compact.
- the pressing time may be in the range of 1 to 100 seconds, preferably 5 to 50 seconds.
- additional reinforcements eg glass fabric
- the pressing operation is carried out at room temperature.
- the green compact is then cured at elevated temperature.
- Curing process takes place in chamber or tunnel ovens.
- the temperature can be controlled automatically by the program controller.
- the selection of a suitable curing program depends on one A number of factors, such as the dimensions and structure of the disc, the proportion of filler, the resin bond fraction and the
- Resin properties The temperature at which curing occurs, we selected so that the plant seeds present in the green plant do not burn.
- the pellets are first pre-dried at temperatures between 50 ° C and 100 ° C and then at
- the curing process lasts between 5 and 40 hours, preferably between 10 and 30 hours and more preferably 15
- the formulation is composed as follows: [0031]
- the mixing process is continued until the desired homogeneous consistency is reached.
- the grinding wheel mixture should not be too dry but dust-free and free-flowing. After its completion will be the mixture sieved and deposited for several hours.
- the press mixture After deposition, the press mixture is accurately weighed and transported by means of sliders in the mold. The mixture is filled into the mold with extremely even distribution. Subsequently, the pressing is pressed cold in a conventional press, under a pressure of 30 N / mm 2 within a few seconds to a green compact. In order to increase the structural integrity of the grinding wheel while three tissues are mitverpresst.
- the green compact produced is clamped between metal discs and fired over a multi-stage curing profile up to a temperature of 180 ° C for a total of 15 hours. After firing, the finished grinding wheel is removed between the metal plates.
- the finished disc has the dimensions 125 x 7 x 22.23 mm and has a pleasantly cool cut.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI1007425A BRPI1007425A2 (pt) | 2009-01-29 | 2010-01-28 | disco de esmerilhamento tendo cápsulas de semente vegetais como carga e método para fabricação do mesmo |
MX2011007914A MX2011007914A (es) | 2009-01-29 | 2010-01-28 | Muela abrasiva teniendo capsulas de semilla vegetal como relleno y metodo de produccion de esta. |
ES10701675.0T ES2437392T3 (es) | 2009-01-29 | 2010-01-28 | Muela abrasiva con cápsulas de semillas vegetales como material de relleno y procedimiento para su producción |
PL10701675T PL2391482T3 (pl) | 2009-01-29 | 2010-01-28 | Ściernica z torebkami nasiennymi roślin |
US13/146,670 US20110281511A1 (en) | 2009-01-29 | 2010-01-28 | Grinding disk having plant seed capsules as a filler and method for the production thereof |
EP10701675.0A EP2391482B1 (de) | 2009-01-29 | 2010-01-28 | Schleifscheibe mit pflanzlichen samenkapseln als füllstoff und verfahren zu ihrer herstellung |
JP2011546841A JP2012516241A (ja) | 2009-01-29 | 2010-01-28 | 充填剤として植物の種子鞘を有する砥石および該砥石の製造法 |
CN2010800060958A CN102300675A (zh) | 2009-01-29 | 2010-01-28 | 具有作为填料的植物种皮的研磨盘及其制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009006699A DE102009006699A1 (de) | 2009-01-29 | 2009-01-29 | Schleifmittel mit pflanzlichen Samenkapseln als Füllstoff |
DE102009006699.3 | 2009-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010086371A1 true WO2010086371A1 (de) | 2010-08-05 |
Family
ID=42123034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/050996 WO2010086371A1 (de) | 2009-01-29 | 2010-01-28 | Schleifscheibe mit pflanzlichen samenkapseln als füllstoff und verfahren zu dessen herstellung |
Country Status (10)
Country | Link |
---|---|
US (1) | US20110281511A1 (de) |
EP (1) | EP2391482B1 (de) |
JP (1) | JP2012516241A (de) |
CN (1) | CN102300675A (de) |
BR (1) | BRPI1007425A2 (de) |
DE (1) | DE102009006699A1 (de) |
ES (1) | ES2437392T3 (de) |
MX (1) | MX2011007914A (de) |
PL (1) | PL2391482T3 (de) |
WO (1) | WO2010086371A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022126743A1 (de) | 2022-10-13 | 2024-04-18 | Ernst-Abbe-Hochschule Jena Körperschaft des öffentlichen Rechts | Werkzeug zum Materialabtrag und Verfahren zu seiner Herstellung |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004076A1 (de) | 2012-03-02 | 2013-09-05 | Peter Klenert | Verfahren und Stoffzusammensetzung zur Herstellung keramischer Massen |
JP6434266B2 (ja) * | 2013-12-17 | 2018-12-05 | 富士紡ホールディングス株式会社 | ラッピング用樹脂定盤及びそれを用いたラッピング方法 |
CN105505313A (zh) * | 2015-11-25 | 2016-04-20 | 江苏仓环铜业股份有限公司 | 一种刀具抛光或钝化用的磨料 |
RU2685825C1 (ru) * | 2018-07-10 | 2019-04-23 | Открытое акционерное общество " Волжский абразивный завод" | Масса для изготовления высокопористого абразивного инструмента и способ изготовления высокопористого абразивного инструмента |
JP7197603B2 (ja) * | 2018-11-13 | 2022-12-27 | 株式会社アドマテックス | 多心フェルール用研磨材 |
CN110303439B (zh) * | 2019-07-31 | 2020-10-27 | 中铁隆昌铁路器材有限公司 | 一种高速打磨车专用被动打磨砂轮成型工艺 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE12943C (de) | G. A. buchholz in Charlottenburg, Spandauerstrafse 25 | Verfahren, poröses Porzellan, Steingut und Thon herzustellen | ||
US2537541A (en) * | 1945-07-19 | 1951-01-09 | Norton Co | Grinding wheel construction |
US5203886A (en) | 1991-08-12 | 1993-04-20 | Norton Company | High porosity vitrified bonded grinding wheels |
US5221294A (en) | 1991-05-22 | 1993-06-22 | Norton Company | Process of producing self-bonded ceramic abrasive wheels |
DE69705538T2 (de) | 1996-11-27 | 2002-05-16 | Minnesota Mining & Mfg | Abrasive gegenstände und verfahren zu deren herstellung |
DE10297124T5 (de) | 2001-08-21 | 2004-07-22 | Saint-Gobain Abrasives, Inc., Worcester | Verglastes Werkzeug mit Superschleifmittel und Verfahren zur Herstellung |
DE102004035088A1 (de) | 2004-07-20 | 2006-02-16 | Chemetall Ges.Mbh | Organisch gebundene Trenn- oder Schleifkörper mit einem funktionellen Additiv |
DE60206661T2 (de) | 2002-02-19 | 2006-09-28 | Cincinnati Tyrolit, Inc., Cincinnati | Imprägnierte schleifscheibe |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US2319182A (en) * | 1938-11-16 | 1943-05-11 | Agicide Lab Inc | Molded article |
US3925034A (en) * | 1973-05-14 | 1975-12-09 | Res Abrasive Products Inc | Resin bonded grinding wheel containing gas-filled thermoplastic resin beads and method of making it |
US4903440A (en) * | 1988-11-23 | 1990-02-27 | Minnesota Mining And Manufacturing Company | Abrasive product having binder comprising an aminoplast resin |
US5035723A (en) * | 1989-04-28 | 1991-07-30 | Norton Company | Bonded abrasive products containing sintered sol gel alumina abrasive filaments |
GB8927983D0 (en) * | 1989-12-11 | 1990-02-14 | Minnesota Mining & Mfg | Abrasive elements |
JP3314213B2 (ja) * | 1993-03-02 | 2002-08-12 | 富山県 | レジノイド砥石及びその製造方法 |
JPH09207071A (ja) * | 1995-12-01 | 1997-08-12 | Masayuki Oka | 油脂研摩剤入り海綿状樹脂砥石 |
US6074278A (en) * | 1998-01-30 | 2000-06-13 | Norton Company | High speed grinding wheel |
JPH11347952A (ja) * | 1998-06-10 | 1999-12-21 | Hitachi Chem Co Ltd | 半導体ウエハ研磨用樹脂砥石及びその製造方法 |
JP3498952B2 (ja) * | 2001-04-16 | 2004-02-23 | 株式会社チップトン | レジノイド研削砥石の製造方法 |
JP2003191170A (ja) * | 2001-12-26 | 2003-07-08 | Fuji Grinding Wheel Co Ltd | 切断砥石とその製造方法 |
US20050120636A1 (en) * | 2003-12-09 | 2005-06-09 | Yong Bum Kim | Preparation of coated abrasive disk |
JP2008142883A (ja) * | 2006-11-13 | 2008-06-26 | Kurenooton Kk | レジノイド砥石 |
EP2111326A4 (de) * | 2006-12-20 | 2013-01-16 | 3M Innovative Properties Co | Beschichtete schleifscheibe und verfahren zu ihrer herstellung |
-
2009
- 2009-01-29 DE DE102009006699A patent/DE102009006699A1/de not_active Withdrawn
-
2010
- 2010-01-28 MX MX2011007914A patent/MX2011007914A/es active IP Right Grant
- 2010-01-28 ES ES10701675.0T patent/ES2437392T3/es active Active
- 2010-01-28 WO PCT/EP2010/050996 patent/WO2010086371A1/de active Application Filing
- 2010-01-28 PL PL10701675T patent/PL2391482T3/pl unknown
- 2010-01-28 EP EP10701675.0A patent/EP2391482B1/de not_active Not-in-force
- 2010-01-28 BR BRPI1007425A patent/BRPI1007425A2/pt not_active IP Right Cessation
- 2010-01-28 US US13/146,670 patent/US20110281511A1/en not_active Abandoned
- 2010-01-28 JP JP2011546841A patent/JP2012516241A/ja active Pending
- 2010-01-28 CN CN2010800060958A patent/CN102300675A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE12943C (de) | G. A. buchholz in Charlottenburg, Spandauerstrafse 25 | Verfahren, poröses Porzellan, Steingut und Thon herzustellen | ||
US2537541A (en) * | 1945-07-19 | 1951-01-09 | Norton Co | Grinding wheel construction |
US5221294A (en) | 1991-05-22 | 1993-06-22 | Norton Company | Process of producing self-bonded ceramic abrasive wheels |
US5203886A (en) | 1991-08-12 | 1993-04-20 | Norton Company | High porosity vitrified bonded grinding wheels |
DE69705538T2 (de) | 1996-11-27 | 2002-05-16 | Minnesota Mining & Mfg | Abrasive gegenstände und verfahren zu deren herstellung |
DE10297124T5 (de) | 2001-08-21 | 2004-07-22 | Saint-Gobain Abrasives, Inc., Worcester | Verglastes Werkzeug mit Superschleifmittel und Verfahren zur Herstellung |
DE60206661T2 (de) | 2002-02-19 | 2006-09-28 | Cincinnati Tyrolit, Inc., Cincinnati | Imprägnierte schleifscheibe |
DE102004035088A1 (de) | 2004-07-20 | 2006-02-16 | Chemetall Ges.Mbh | Organisch gebundene Trenn- oder Schleifkörper mit einem funktionellen Additiv |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022126743A1 (de) | 2022-10-13 | 2024-04-18 | Ernst-Abbe-Hochschule Jena Körperschaft des öffentlichen Rechts | Werkzeug zum Materialabtrag und Verfahren zu seiner Herstellung |
Also Published As
Publication number | Publication date |
---|---|
ES2437392T3 (es) | 2014-01-10 |
BRPI1007425A2 (pt) | 2016-02-16 |
PL2391482T3 (pl) | 2014-02-28 |
CN102300675A (zh) | 2011-12-28 |
US20110281511A1 (en) | 2011-11-17 |
EP2391482A1 (de) | 2011-12-07 |
MX2011007914A (es) | 2011-08-17 |
EP2391482B1 (de) | 2013-09-04 |
JP2012516241A (ja) | 2012-07-19 |
DE102009006699A1 (de) | 2010-08-05 |
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