GB1421174A - Abrasives - Google Patents

Abrasives

Info

Publication number
GB1421174A
GB1421174A GB5635872A GB5635872A GB1421174A GB 1421174 A GB1421174 A GB 1421174A GB 5635872 A GB5635872 A GB 5635872A GB 5635872 A GB5635872 A GB 5635872A GB 1421174 A GB1421174 A GB 1421174A
Authority
GB
United Kingdom
Prior art keywords
abrasive
grain
oxide
molten
dec
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
Application number
GB5635872A
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.)
HC Starck GmbH
Original Assignee
HC Starck 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.)
Filing date
Publication date
Application filed by HC Starck GmbH filed Critical HC Starck GmbH
Publication of GB1421174A publication Critical patent/GB1421174A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1409—Abrasive particles per se
    • C09K3/1427—Abrasive particles per se obtained by division of a mass agglomerated by melting, at least partially, e.g. with a binder

Abstract

1421174 Corundum-based grains HERMANN C STARCK BERLIN 6 Dec 1972 [7 Dec 1971] 56358/72 Heading C1A [Also in Division C4] A microcrystalline corundum-based abrasive grain having a high grain toughness comprises a polycrystalline matrix of which a polished ground section thereof reveals substantially no cracks or flaws through the polycrystalline matrix. The grain is obtained by rapid solidification of a molten abrasive followed by cooling of the solid abrasive formed that it delayed by release through the solidified abrasive of the heat of fusion of a molten material with which the rapidly solidified abrasive is in contact. The grain may be of pure alpha-aluminium oxide or alphaaluminium oxide with titanium oxide and/or chromium oxide and/or zirconium oxide. Preferably the melt is thermally insulated by a layer of alumina, coke breeze of an insulating material over the layer of molten abrasive. The heat storage material is preferably an iron alloy which can easily be removed by means of a magnetic separator.
GB5635872A 1971-12-07 1972-12-06 Abrasives Expired GB1421174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712160705 DE2160705C3 (en) 1971-12-07 1971-12-07 High grain toughness abrasive and process for its manufacture

Publications (1)

Publication Number Publication Date
GB1421174A true GB1421174A (en) 1976-01-14

Family

ID=5827289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5635872A Expired GB1421174A (en) 1971-12-07 1972-12-06 Abrasives

Country Status (4)

Country Link
AT (1) AT335304B (en)
DE (1) DE2160705C3 (en)
FR (1) FR2164330A5 (en)
GB (1) GB1421174A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143522A (en) * 1979-11-09 1992-09-01 Washington Mills Electro Minerals Corporation Abrasive products containing fused alumina zirconia and reduced titania
US5478510A (en) * 1992-10-19 1995-12-26 H.C. Starck Gmbh & Co Kg Process for producing homogeneous structure abrasives
WO2002046327A1 (en) * 2000-12-08 2002-06-13 Treibacher Schleifmittel Gmbh Method for producing an oxide of aluminum based corundum abrasive grain with increased tenacity and use thereof in abrasives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT344529B (en) * 1976-10-25 1978-07-25 Treibacher Chemische Werke Ag PROCESS FOR PROCESSING USED CATALYSTS FOR THE PRODUCTION OF ABRASIVE MATERIALS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143522A (en) * 1979-11-09 1992-09-01 Washington Mills Electro Minerals Corporation Abrasive products containing fused alumina zirconia and reduced titania
US5478510A (en) * 1992-10-19 1995-12-26 H.C. Starck Gmbh & Co Kg Process for producing homogeneous structure abrasives
WO2002046327A1 (en) * 2000-12-08 2002-06-13 Treibacher Schleifmittel Gmbh Method for producing an oxide of aluminum based corundum abrasive grain with increased tenacity and use thereof in abrasives

Also Published As

Publication number Publication date
DE2160705C3 (en) 1981-07-30
ATA1036972A (en) 1976-06-15
AT335304B (en) 1977-03-10
DE2160705B2 (en) 1980-10-09
DE2160705A1 (en) 1973-06-14
FR2164330A5 (en) 1973-07-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee