US1013657A - Method of making abrasive articles. - Google Patents

Method of making abrasive articles. Download PDF

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Publication number
US1013657A
US1013657A US35991107A US1907359911A US1013657A US 1013657 A US1013657 A US 1013657A US 35991107 A US35991107 A US 35991107A US 1907359911 A US1907359911 A US 1907359911A US 1013657 A US1013657 A US 1013657A
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US
United States
Prior art keywords
fluorin
binder
abrasive articles
articles
making 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
Application number
US35991107A
Inventor
Francis W Higgins
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.)
Unifrax 1 LLC
Original Assignee
Carborundum Co
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Filing date
Publication date
Application filed by Carborundum Co filed Critical Carborundum Co
Priority to US35991107A priority Critical patent/US1013657A/en
Application granted granted Critical
Publication of US1013657A publication Critical patent/US1013657A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated

Definitions

  • My invention relates to the manufacture of ceramic bodies containing fluorin compounds, and especially to the manufacture of abrasive articles'by the use of a binder containing fluorin or a compound thereof.
  • abrasive articles such as are formed of emery, carborundum, or granular or powdered abrasive material, held together by a binder, can be improved by using fluorin compounds as a constituent of the binder. It has been found, however, that when the shaped articles containing fluorin in the binder are fired in a kiln, a deterioration occurs, either by the action of the kiln gases, or by reason of certain reactions which occur within the article which liberate certain gases, or perhaps, from both causes combined.
  • a coating or glaze consisting of a wet mixture of kaolin and feldspar, for example, 3 in the proportion of one part of kaolin to four parts of feldspar, although I do not, in my broader claims, limit myself to the use of this particular composition, as there are various others which can be used.
  • the coating composition should, however, beone which will fuse at a temperature'below the vitrification point of the fluorin-containing binder; it should be substantially impervious to gases; and it should be resistant or inert to the act-ion of fluorin gases.
  • the shaped articles having been painted or coated with the'protective coating of the character described, are fired in the usual manner.
  • abrasive articles which consists in shaping the article from a mixture of an abrasive material and a binder containing fluorin, coating the shaped article with a coat or layer which is substantially impervious to gases, and then firing; substantially as described.
  • abrasive articles which consists in shaping the article from a mixture of an abrasive material and a binder containing fluorin, coating the shaped article with a coat or layer which is resist-ant to fluorin gases, and then firing; substantially as described.
  • abrasive articles which consists in shaping the article from a mixture of an abrasive material and a binder containing fluorin, coating the shaped article with a coat or layer which will fuse at a kiln temperature below the vitrifying point of the binder, and then firing; substantially as described.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

FRANCIS W. HIGGINS, 0F NIAGARA FALLS, NEW YORK, ASSIGNOR TO THE CARBORUN- DUM COMPANY, OF NIAGARA FALLS, NEW YORK, A CORPORATION OF PENNSYL- Paten'ted J an. 2, 11912.
VANIA. METHOD OF MAKING ABRASIVE ARTICLES.
1,013,651 Specification of Letters Patent.
No Drawing. Application filed February 28, 1907. Serial No. 359,911.
To all whom it may concern:
Be it known that I, FRANCIS W. HIGGINS, of Niagara Falls, Niagara county, New York, have invented a new and useful Method of Making Abrasive Articles, of
which the following is a full, clear, and
exact description.
My invention relates to the manufacture of ceramic bodies containing fluorin compounds, and especially to the manufacture of abrasive articles'by the use of a binder containing fluorin or a compound thereof. I have found that abrasive articles such as are formed of emery, carborundum, or granular or powdered abrasive material, held together by a binder, can be improved by using fluorin compounds as a constituent of the binder. It has been found, however, that when the shaped articles containing fluorin in the binder are fired in a kiln, a deterioration occurs, either by the action of the kiln gases, or by reason of certain reactions which occur within the article which liberate certain gases, or perhaps, from both causes combined. This deterioration seri-- ously affects the strength and value of the articles, and to a considerable extent neu tralizes the advantages which would otherwise result from the use of a binder containing fluorin. I have discovered that this deterioration in firing can be overcome and the value of the fluorin-containing binder can be retained, by coating the articles, after they have been shaped from the mixture of abrasive material and binder, and before firing, with a glaze-forming layer or coating which is substantially impervious to gases-both kiln gases and also any gases which may form within the articles.
In practice I have found that the desired results are obtained by the use of a coating or glaze consisting of a wet mixture of kaolin and feldspar, for example, 3 in the proportion of one part of kaolin to four parts of feldspar, although I do not, in my broader claims, limit myself to the use of this particular composition, as there are various others which can be used. The coating composition should, however, beone which will fuse at a temperature'below the vitrification point of the fluorin-containing binder; it should be substantially impervious to gases; and it should be resistant or inert to the act-ion of fluorin gases. The shaped articles having been painted or coated with the'protective coating of the character described, are fired in the usual manner.
While I am not able to state with certainty the exact manner in which the protective coating acts, daily practical use of such coating'has demonstrated the fact that it does act with great efficiency to prevent deterioration in firing and in preserving the valuable properties of the fluorin-containing binder.
'I claim 1. The method of making abrasive articles, which consists in shaping the article from a mixture of an abrasive material and a binder containing fluorin, coating the shaped article with a coat or layer which is substantially impervious to gases, and then firing; substantially as described.
2. The method of making abrasive articles, which consists in shaping the article from a mixture of an abrasive material and a binder containing fluorin, coating the shaped article with a coat or layer which is resist-ant to fluorin gases, and then firing; substantially as described.
3. The method of making abrasive articles, which consists in shaping the article from a mixture of an abrasive material and a binder containing fluorin, coating the shaped article with a coat or layer which will fuse at a kiln temperature below the vitrifying point of the binder, and then firing; substantially as described.
4. The method of making abrasive articles, which consists in shaping the article from a mixture of an abrasive material and my hand.
FRANCIS W. HIGGINS. Witnesses:
F. J. TONE, ASHMEAD G. RODGERS.
US35991107A 1907-02-28 1907-02-28 Method of making abrasive articles. Expired - Lifetime US1013657A (en)

Priority Applications (1)

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US35991107A US1013657A (en) 1907-02-28 1907-02-28 Method of making abrasive articles.

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US35991107A US1013657A (en) 1907-02-28 1907-02-28 Method of making abrasive articles.

Publications (1)

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US1013657A true US1013657A (en) 1912-01-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510493A (en) * 1943-02-01 1950-06-06 Bjorklund Gustaf Erik Method of producing grinding bodies
US2536953A (en) * 1948-04-13 1951-01-02 Impregnated Diamond Prod Ltd Borofluoride bonded abrasive articles and the manufacture thereof
US11172605B2 (en) 2016-06-30 2021-11-16 Tti (Macao Commercial Offshore) Limited Autonomous lawn mower and a system for navigating thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510493A (en) * 1943-02-01 1950-06-06 Bjorklund Gustaf Erik Method of producing grinding bodies
US2536953A (en) * 1948-04-13 1951-01-02 Impregnated Diamond Prod Ltd Borofluoride bonded abrasive articles and the manufacture thereof
US11172605B2 (en) 2016-06-30 2021-11-16 Tti (Macao Commercial Offshore) Limited Autonomous lawn mower and a system for navigating thereof

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