EP0114280A2 - Procédé de fabrication d'éléments abrasifs - Google Patents

Procédé de fabrication d'éléments abrasifs Download PDF

Info

Publication number: EP0114280A2
Authority: EP; European Patent Office
Prior art keywords: binder; synthetic resin; fillers; grinding; additives
Prior art date: 1983-01-21
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

EP83112342A

Other languages

German (de)

English (en)

Other versions

EP0114280B1 (fr

EP0114280A3 (en

Inventor

Karl Dr.Dipl.-Chem. Elbel

Rainer Augustin

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.)

Carborundum Schleifmittelwerke Te Duesseldorf GmbH

Original Assignee

Carborundum Schleifmittelwerke GmbH

Sea Schleifmittel Entwicklung Anwendung GmbH

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.)

1983-01-21

Filing date

1983-12-08

Publication date

1984-08-01

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6188838&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0114280(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1983-12-08 Application filed by Carborundum Schleifmittelwerke GmbH, Sea Schleifmittel Entwicklung Anwendung GmbH filed Critical Carborundum Schleifmittelwerke GmbH

1983-12-08 Priority to AT83112342T priority Critical patent/ATE45908T1/de

1984-08-01 Publication of EP0114280A2 publication Critical patent/EP0114280A2/fr

1985-09-18 Publication of EP0114280A3 publication Critical patent/EP0114280A3/de

1989-08-30 Application granted granted Critical

1989-08-30 Publication of EP0114280B1 publication Critical patent/EP0114280B1/fr

Status Expired legal-status Critical Current

Links

238000004519 manufacturing process Methods 0.000 title claims description 14
238000000227 grinding Methods 0.000 claims abstract description 26
239000011230 binding agent Substances 0.000 claims abstract description 20
238000000034 method Methods 0.000 claims abstract description 14
239000000945 filler Substances 0.000 claims abstract description 12
239000000203 mixture Substances 0.000 claims abstract description 11
229920003002 synthetic resin Polymers 0.000 claims abstract description 8
239000000057 synthetic resin Substances 0.000 claims abstract description 8
238000005266 casting Methods 0.000 claims abstract description 6
239000007858 starting material Substances 0.000 claims abstract description 6
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical class CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 3
239000000654 additive Substances 0.000 claims description 7
-1 aromatic tertiary amine Chemical class 0.000 claims description 5
229920005989 resin Polymers 0.000 claims description 5
239000011347 resin Substances 0.000 claims description 5
239000010440 gypsum Substances 0.000 claims description 4
229910052602 gypsum Inorganic materials 0.000 claims description 4
CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
239000003795 chemical substances by application Substances 0.000 claims description 3
150000001451 organic peroxides Chemical class 0.000 claims description 3
229910021532 Calcite Inorganic materials 0.000 claims description 2
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 2
239000010459 dolomite Substances 0.000 claims description 2
229910000514 dolomite Inorganic materials 0.000 claims description 2
150000002734 metacrylic acid derivatives Chemical class 0.000 claims description 2
229940082569 selenite Drugs 0.000 claims description 2
MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 claims description 2
239000007788 liquid Substances 0.000 claims 1
239000006061 abrasive grain Substances 0.000 abstract description 8
239000000178 monomer Substances 0.000 abstract description 6
125000005397 methacrylic acid ester group Chemical group 0.000 abstract description 2
230000009974 thixotropic effect Effects 0.000 abstract description 2
239000003082 abrasive agent Substances 0.000 description 5
239000000919 ceramic Substances 0.000 description 5
239000003822 epoxy resin Substances 0.000 description 5
239000001095 magnesium carbonate Substances 0.000 description 5
229910000021 magnesium carbonate Inorganic materials 0.000 description 5
235000014380 magnesium carbonate Nutrition 0.000 description 5
229920001568 phenolic resin Polymers 0.000 description 5
239000005011 phenolic resin Substances 0.000 description 5
229920000647 polyepoxide Polymers 0.000 description 5
ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
239000002826 coolant Substances 0.000 description 3
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
238000006116 polymerization reaction Methods 0.000 description 3
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
229910000831 Steel Inorganic materials 0.000 description 2
150000001412 amines Chemical class 0.000 description 2
238000004140 cleaning Methods 0.000 description 2
238000005260 corrosion Methods 0.000 description 2
230000007797 corrosion Effects 0.000 description 2
239000011521 glass Substances 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
239000010959 steel Substances 0.000 description 2
239000000126 substance Substances 0.000 description 2
239000002351 wastewater Substances 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
229920001342 Bakelite® Polymers 0.000 description 1
229920000049 Carbon (fiber) Polymers 0.000 description 1
BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical group ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
239000004593 Epoxy Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
229910021529 ammonia Inorganic materials 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
239000004637 bakelite Substances 0.000 description 1
230000001588 bifunctional effect Effects 0.000 description 1
229940043430 calcium compound Drugs 0.000 description 1
150000001674 calcium compounds Chemical class 0.000 description 1
239000004917 carbon fiber Substances 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000001816 cooling Methods 0.000 description 1
229910001610 cryolite Inorganic materials 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
238000009837 dry grinding Methods 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
239000004744 fabric Substances 0.000 description 1
238000010304 firing Methods 0.000 description 1
239000002223 garnet Substances 0.000 description 1
239000003365 glass fiber Substances 0.000 description 1
239000003673 groundwater Substances 0.000 description 1
LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
230000002401 inhibitory effect Effects 0.000 description 1
229910001629 magnesium chloride Inorganic materials 0.000 description 1
239000000463 material Substances 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
229920003986 novolac Polymers 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
239000002245 particle Substances 0.000 description 1
238000005498 polishing Methods 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
235000019353 potassium silicate Nutrition 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
229910052683 pyrite Inorganic materials 0.000 description 1
239000011028 pyrite Substances 0.000 description 1
239000002994 raw material Substances 0.000 description 1
230000002787 reinforcement Effects 0.000 description 1
239000012779 reinforcing material Substances 0.000 description 1
229920003987 resole Polymers 0.000 description 1
HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
229910010271 silicon carbide Inorganic materials 0.000 description 1
239000000344 soap Substances 0.000 description 1
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000001228 spectrum Methods 0.000 description 1
229920001169 thermoplastic Polymers 0.000 description 1
229920001187 thermosetting polymer Polymers 0.000 description 1
239000004416 thermosoftening plastic Substances 0.000 description 1
239000004552 water soluble powder Substances 0.000 description 1
238000001238 wet grinding Methods 0.000 description 1

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
- B24D3/344—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 the bonding agent being 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

Definitions

the invention relates to a method for producing grinding wheels in a casting mold, using a cold-curing synthetic resin as a binder in an abrasive grain-binder mixture, to which additives are optionally added.
Such methods are used to manufacture hard abrasive grits, i.e. Grinding wheels, slip rings, cups, honing tools etc.
the known hard abrasives are made using ceramic, phenolic, magnesite or epoxy binders (the less frequently used binders such as metal-silicate-polyester and others are not considered).
Ceramic bonded abrasives are mainly used in precision grinding. Their production is complex because of the multi-day burning at temperatures above 90C P C. In addition, because of the warping that occurs during firing, these bodies must be provided with a considerable excess, which necessitates appropriate reworking.
the phenolic resin bond is based on the simultaneous use of phenolic resoles and novolaks.
curing for up to two days at temperatures around 175C is also an environmental burden in that considerable amounts of free phenol, formaldehyde and ammonia are released in addition to water.
free phenol, formaldehyde and ammonia are released in addition to water.
the structure of the abrasive body is porous, namely highly porous in the coarse grain area and less porous in the fine area. It is difficult, if not impossible, to adjust the abrasive grain density to the respective use with such abrasives over the entire grain spectrum and to provide a sufficient chip gap volume, particularly in the fine and very fine grain range.
the phenolic resin bond has the disadvantage that it is not very resistant to the alkaline coolants, which is why this bond is mainly used only in dry grinding.
abrasive particles in magnesite bond are cast and therefore tight, i.e. practically non-porous. Nevertheless, they offer an extremely cool cut, especially for hardened steels with high stock removal rates. That is why such grinding tools are primarily used for grinding knives, scissors, pliers and other tools, the ends of spiral springs, etc.
magnesite bonded abrasives are manifold. So they are only approved for working speeds up to 20 m / sec, furthermore they change their hardness over time, so that they only work optimally in the period from 1 month to 4 months after production can be used.
a significant disadvantage is the magnesium chloride liberated during grinding, which leads to severe corrosion, in particular to the protective hoods of the machines, and represents a considerable waste water load.
epoxy resin bonding has become increasingly popular in the past few years, particularly in the cutlery industry with lower stock removal rates and in the fine grain area.
a handicap of epoxy resins is their high viscosity. Base resins with a high proportion of reactive thinners are available with viscosities of approx. 1000 mPa.s, but because of the thinning they show insufficient heat resistance. That is why such abrasives always compromise between just enough castability, resin content (which is inevitably 40% by weight and higher), heat resistance and performance. Because of these necessary compromises with regard to heat resistance, such grinding tools can only be used in wet grinding.
the invention solves this problem by using a synthetic resin with a dynamic viscosity of 1-10 mPa.s as the binder and adding a radical-forming starter system to the resin and / or the additives in a manner known per se.
the abrasive grain / filler / binder mixtures are highly thixotropic due to their composition according to the invention and can be easily liquefied by vibration. Your consistency. is under appropriate vibration such that they easily pass the outlet of a funnel and fill even complex molds cleanly. It is possible, for example, to manufacture cup wheels with a wall thickness of only 3 mm and a cup diameter of 250 mm, which is not possible with the binders known to date.
the addition of the starter system can be metered in such a way that a sufficient pot life is achieved, but the hardened grinding wheel can be removed from the mold no later than two hours after the start of filling and the hardening takes place essentially at room temperature. Only in the case of small grinding wheels, where the large relative mold volume inevitably absorbs a lot of reaction heat compared to the small relative grinding wheel volume, it is advisable to warm the molds to 60 ° C briefly before or after filling.
the starter system expediently consists of an organic peroxide and an aromatic tertiary amine. It has proven advantageous to add a powdered organic peroxide to polymeric methacrylate and to dissolve the aromatic tertiary amine in the binder.
the hardening shrinkage of the abrasive articles produced according to the invention is extremely low and averages 0.02%. This fact makes it possible to design the respective shape in such a way that the parts of the grinding wheel which are in contact with the shape are no longer machined. This even applies to the bore, provided the bore mandrel has a correspondingly small oversize. Compared to the known methods, considerable manufacturing costs can be saved.
the abrasive bodies show practically no imbalance and no differences in density or hardness within the finished body, provided that the casting mold is geometrically perfect.
the abrasive article produced according to the invention competes in various areas of metal-cutting surface processing with ceramic, phenolic resin, magnesite and epoxy resin bonding.
the table below gives an overview of the relevant conditions for the manufacture and use of the various grinding tools, with a plus sign representing a positive rating and a minus sign representing a negative rating. From this compilation, the overall positive properties of the method according to the invention compared to the known methods are clear.
thermoplastics can also be used for the production of hard abrasive articles, the polymerization being carried out from the monomer in the abrasive article mixture in the casting mold, the monomers optionally being stabilized with 3 to 20 ppm hydroquinone or other.
monomers are mainly methacrylic acid esters and / or vinyl acetate in question, other monomers are conceivable alone or as an additive, but it must be taken into account that some of the other monomers in question are unsafe in terms of work hygiene.
the binder according to the invention expediently contains bifunctional or trifunctional methacrylates as crossing agents.
Fillers are necessary to create the necessary chip gap volume and to enable polymerization at all. On the one hand, these fillers must be softer than the materials to be machined, but on the other hand they must be so pressure-resistant that they fix the grinding bodies rigidly and give the grinding body as a whole the necessary hardness.
Fillers with a Mohs hardness of less than 6 or a Knoop hardness of less than 500 are available here, are available in various grades and are environmentally friendly and may refine the grinding pattern created by the abrasive grain as a polishing agent.
the granulometric composition of the abrasive grain-filler combination should essentially correspond to the respective fuller curve. This ensures that the inorganic constituents are packed as densely as possible.
the fuller curve begins, for example, in the range from 150 to 60 ⁇ m with a filler which is neutral in grinding, the range from 60 to 20 ⁇ m with the 280 F abrasive grain, and subsequently from 20 to 2 ⁇ m again a grinding-neutral filler. It is expedient that the fillers are surface-treated, primarily in the fine range 20 ... 2 ⁇ m.
the extensive setting of the fuller curve corresponding to the respective abrasive grain size makes it possible to keep the binder content relatively low, in extreme cases 8% or 20% by volume.
the binder content is 16% by weight or 40% by volume.
the "hardness” can be adjusted to the respective use in a similar way to that of the abrasive bodies of hard bonds, where one also speaks of “hard” and “soft” ceramic or Bakelite discs. Here is more with the “hardness” or less the strength of the grain binding meant.
glass fabrics or rovings as reinforcing materials is also possible.
atmospheric oxygen inhibits the polymerization, the abrasive articles according to the invention must be essentially leakproof.
grinding heat-sensitive steels it can be useful to create a more open surface of the grinding wheel to take away more water-based coolant. This is achieved very well by adding water-soluble powder substances.
ground water glass is ideal, which not only has a corrosion-inhibiting effect, but is also environmentally friendly and does not impair the coolant.
All known types can be used as abrasive grain, i.e. glass, flint, garnet, the various corundums, silicon carbide, etc., alone or as a mixture. As already mentioned, all grain sizes are possible, for example from 8 - 1200 according to FEPA.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Polishing Bodies And Polishing Tools (AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

EP83112342A 1983-01-21 1983-12-08 Procédé de fabrication d'éléments abrasifs Expired EP0114280B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT83112342T ATE45908T1 (de)	1983-01-21	1983-12-08	Verfahren zur herstellung von schleifkoerpern.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19833301925 DE3301925A1 (de)	1983-01-21	1983-01-21	Verfahren zur herstellung von schleifkoerpern
DE3301925		1983-10-21

Publications (3)

Publication Number	Publication Date
EP0114280A2 true EP0114280A2 (fr)	1984-08-01
EP0114280A3 EP0114280A3 (en)	1985-09-18
EP0114280B1 EP0114280B1 (fr)	1989-08-30

Family

ID=6188838

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP83112342A Expired EP0114280B1 (fr)	1983-01-21	1983-12-08	Procédé de fabrication d'éléments abrasifs

Country Status (4)

Country	Link
US (1)	US4541843A (fr)
EP (1)	EP0114280B1 (fr)
AT (1)	ATE45908T1 (fr)
DE (2)	DE3301925A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0242410A1 (fr) *	1986-04-17	1987-10-28	Carborundum Schleifmittelwerke GmbH	Procédé de fabrication d'un élément abrasif élastique
EP0280756B1 (fr) *	1987-03-06	1990-06-27	Carborundum Schleifmittelwerke GmbH	Procédé pour modifier le rendement de meulage des outils de meulage et d'alésage
EP0381662A3 (en) *	1989-01-30	1990-09-26	Magindag Steirische Magnesit-Industrie Aktiengesellschaft	Process for the manufacture of abrasive bodies
EP0285369A3 (en) *	1987-04-02	1990-12-05	Minnesota Mining And Manufacturing Company	Coated abrasive binder containing ternary photoinitiator system
DE19614401B4 (de) *	1996-04-12	2004-08-19	Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg	Belag für Schleif- und Honwerkzeuge
CN102699826A (zh) *	2012-06-16	2012-10-03	大连理工大学	一种常温固化结合剂软磨料砂轮

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4681600A (en) *	1984-09-05	1987-07-21	Extrude Hone Corporation	Cutting tool fabrication process
US4736548A (en) *	1986-02-11	1988-04-12	Arkansas Hones, Inc.	Vitrified composite washita stone and process for producing same
US4662897A (en) *	1986-02-11	1987-05-05	Arkansas Hones Inc.	Vitrified composite novaculite and process for producing same
US5116392A (en) *	1988-12-30	1992-05-26	Tyrolit - Schleifmittelwerke Swarovski K.G.	Abrasive article and abrasive
US5209023A (en) *	1990-05-18	1993-05-11	Jerry Bizer	Thermoplastic polymer optical lap and method of making same
US5089032A (en) *	1990-07-05	1992-02-18	Moran Joseph F	Grinding wheel
NL9300919A (nl) *	1993-05-28	1994-12-16	Terra Ijssel Bv	Werkwijze voor het verwerken van afvalstoffen.
NL9300927A (nl) *	1993-05-28	1994-12-16	Terra Ijssel Bv	Werkwijze voor het verwerken van afvalstoffen en met de werkwijze verkregen lichaam.
DE9411326U1 (de) *	1994-07-13	1994-09-15	TYROLIT REINEKE Advanced Systems GmbH & Co. KG, 58791 Werdohl	Verzahntes Honschleifwerkzeug
US5779529A (en) *	1996-11-25	1998-07-14	Bizer Industries	Thermoplastic optical lap with reinforced webbing
US6050573A (en) *	1998-09-30	2000-04-18	Kwikee Products Co., Inc.	Automatic leveling system for vehicles
JP2000351960A (ja) *	1999-06-10	2000-12-19	Nisca Corp	研削用砥粒体
CN117358397B (zh) *	2023-11-17	2026-03-10	东北大学	一种强化菱镁矿和白云石浮选分离的组合助磨剂及其应用

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1194373A (fr) *		1959-11-09
US2189733A (en) *	1938-01-28	1940-02-06	Norton Co	Resin bonded abrasive article
US2901337A (en) *	1956-07-31	1959-08-25	Union Carbide Corp	Abrasive articles and method of making the same
US2943926A (en) *	1958-07-18	1960-07-05	Cincinnati Milling Machine Co	Abrasive wheel composition
FR1257770A (fr) *	1960-02-24	1961-04-07	Somata Sa	Produit abrasif et son procédé de fabrication
US3208836A (en) *	1960-09-09	1965-09-28	Borden Co	Cold press method of making abrasive articles
DE2028891A1 (en) *	1970-06-12	1971-12-16	Gold U Silberscheideanstalt De	Abrasive articles - contng acrylic resins as binders
CH532452A (de) *	1970-07-02	1973-01-15	Esterol Ag	Verfahren zur Herstellung von kunstharzgebundenen Formkörpern, insbesondere von polyestergebundenen Schleifkörpern
NL7013165A (fr) *	1970-09-05	1972-03-07
FR2242344A1 (en) *	1973-08-30	1975-03-28	Touati Roger	Mortar bonded with a urea resin - and set rapidly with vibration and-or centrifuging to give high strength

1983
- 1983-01-21 DE DE19833301925 patent/DE3301925A1/de not_active Withdrawn
- 1983-12-08 EP EP83112342A patent/EP0114280B1/fr not_active Expired
- 1983-12-08 AT AT83112342T patent/ATE45908T1/de not_active IP Right Cessation
- 1983-12-08 DE DE8383112342T patent/DE3380484D1/de not_active Expired
1984
- 1984-01-20 US US06/572,544 patent/US4541843A/en not_active Expired - Fee Related

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0242410A1 (fr) *	1986-04-17	1987-10-28	Carborundum Schleifmittelwerke GmbH	Procédé de fabrication d'un élément abrasif élastique
EP0280756B1 (fr) *	1987-03-06	1990-06-27	Carborundum Schleifmittelwerke GmbH	Procédé pour modifier le rendement de meulage des outils de meulage et d'alésage
EP0285369A3 (en) *	1987-04-02	1990-12-05	Minnesota Mining And Manufacturing Company	Coated abrasive binder containing ternary photoinitiator system
EP0381662A3 (en) *	1989-01-30	1990-09-26	Magindag Steirische Magnesit-Industrie Aktiengesellschaft	Process for the manufacture of abrasive bodies
DE19614401B4 (de) *	1996-04-12	2004-08-19	Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg	Belag für Schleif- und Honwerkzeuge
CN102699826A (zh) *	2012-06-16	2012-10-03	大连理工大学	一种常温固化结合剂软磨料砂轮

Also Published As

Publication number	Publication date
DE3301925A1 (de)	1984-07-26
EP0114280B1 (fr)	1989-08-30
ATE45908T1 (de)	1989-09-15
EP0114280A3 (en)	1985-09-18
US4541843A (en)	1985-09-17
DE3380484D1 (en)	1989-10-05

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Publication	Publication Date	Title
EP0114280B1 (fr)	1989-08-30	Procédé de fabrication d'éléments abrasifs
DE3030506C2 (fr)	1990-05-17
DE69115735T2 (de)	1996-08-08	Schleifkörnchen
DE69016327T2 (de)	1995-08-10	Schleifkörper und Verfahren zu seiner Herstellung.
DE2058475A1 (de)	1971-06-09	Schleifwerkzeug und Verfahren zu seiner Herstellung
DE2408172A1 (de)	1974-08-22	Verfahren zur herstellung eines schleifwerkzeuges
DE2635104C3 (de)	1980-06-19	Verfahren zur Herstellung von gebundenen Schleifkörpern
DE69201374T2 (de)	1995-06-08	Schleifmittelzusammensetzung enthaltend ein supra-abrasives Material und seine Verwendung.
DE3042643A1 (de)	1981-07-02	Schleifkoerper und verfahren zur herstellung desselben
EP2391482A1 (fr)	2011-12-07	Disque abrasif présentant comme charge des capsules de semences végétales et procédé de fabrication correspondant
AT394964B (de)	1992-08-10	Schleifkoerper
DE2921341C2 (de)	1982-07-15	Schleifmaterial und Verfahren zu seiner Herstellung
DE2931652A1 (de)	1981-02-19	Polierkoerper und verfahren zu seiner herstellung
DE2604482A1 (de)	1977-08-11	Schleifkoerper und verfahren zu seiner herstellung
EP0485966A2 (fr)	1992-05-20	Procédé pour la fabrication des outils abrasifs ou de pierrage
DE1001818B (de)	1957-01-31	Verfahren zur Herstellung von Schleifkoerpern mit Kunstharzbindung
DE2713378C3 (de)	1980-01-10	Weichschleifende Schleifkörper
DE3126158A1 (de)	1982-03-11	Verfahren zur herstellung von mit phenol-harz gebundenen schleifscheiben
AT341367B (de)	1978-02-10	Schleifkorper
DE2730665A1 (de)	1979-01-11	Schleifscheibe fuer nasschliff
DE662615C (de)	1938-07-19	Verfahren zur Herstellung von Schleifersteinen, insbesondere fuer Holzschleifer
DE1494224C (de)	1971-04-01	Herstellen von Schleifkorpern
DE734828C (de)	1943-04-29	Verfahren zur Herstellung von kunstharzgebundenen Schleifkoerpern
DE675149C (de)	1939-05-02	Schleifkoerper, insbesondere Schleifscheibe
DE2026628A1 (en)	1970-12-10	Manufacture of grinding discs

EP0114280A2 - Procédé de fabrication d'éléments abrasifs - Google Patents

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