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GB712057A - Improvements in or relating to granular products and method of manufacture thereof - Google Patents

Improvements in or relating to granular products and method of manufacture thereof

Info

Publication number
GB712057A
GB712057A GB28160/51A GB2816051A GB712057A GB 712057 A GB712057 A GB 712057A GB 28160/51 A GB28160/51 A GB 28160/51A GB 2816051 A GB2816051 A GB 2816051A GB 712057 A GB712057 A GB 712057A
Authority
GB
United Kingdom
Prior art keywords
grains
coating
metal
nickel
treatment
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
GB28160/51A
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.)
Svenska AB Gasaccumulator
Original Assignee
Svenska AB Gasaccumulator
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 Svenska AB Gasaccumulator filed Critical Svenska AB Gasaccumulator
Publication of GB712057A publication Critical patent/GB712057A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00Materials not provided for elsewhere
    • C09K3/14Anti-slip materials; Abrasives
    • C09K3/1436Composite particles, e.g. coated particles
    • C09K3/1445Composite particles, e.g. coated particles the coating consisting exclusively of metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/18Non-metallic particles coated with metal
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C26/00Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

In a method of making a body such as a grinding tool in which abrasive grains are embedded in a metallic bonding medium, adhesion is facilitated by coating the grains with a base layer of a platinum group metal followed by a coating of iron, nickel or cobalt. The depth of the final coating is about ten times the diameter of its molecules. The bonding medium may be iron, nickel, cobalt or copper and may be applied in the molten state to a backing disc and the grains then distributed into it. Alternatively the coated grains are distributed on to the disc and the bonding deposited electrolytically. In another modification the embedding of the grains in the bonding medium is effected by a sintering process. When the base layer is to be palladium, the grains are given a preliminary treatment with a stannous chloride solution followed by rinsing and treatment with a solution containing the base metal. The main coating may then be applied by a treatment with a solution containing the coating metal or by means of the carbonyl of the coating metal, for example, by heating the grains to 100 DEG -130 DEG C. and allowing them to fall through a chamber containing gaseous nickel carbonyl.
GB28160/51A 1950-12-01 1951-11-30 Improvements in or relating to granular products and method of manufacture thereof Expired GB712057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE712057X 1950-12-01

Publications (1)

Publication Number Publication Date
GB712057A true GB712057A (en) 1954-07-14

Family

ID=20315754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28160/51A Expired GB712057A (en) 1950-12-01 1951-11-30 Improvements in or relating to granular products and method of manufacture thereof

Country Status (1)

Country Link
GB (1) GB712057A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2323122A1 (en) * 1972-05-10 1973-12-20 Gen Electric METAL-BOND CHIPPING DIAMOND TOOL
US5224969A (en) * 1990-07-20 1993-07-06 Norton Company Diamond having multiple coatings and methods for their manufacture
WO2002068702A3 (en) * 2001-02-26 2003-04-03 Gen Electric Metal-infiltrated polycrystalline diamond composite tool formed from coated diamond particles
WO2004094685A3 (en) * 2003-04-22 2004-12-16 Diamond Innovations Inc Method to provide wear-resistant coating and related coated articles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2323122A1 (en) * 1972-05-10 1973-12-20 Gen Electric METAL-BOND CHIPPING DIAMOND TOOL
US5224969A (en) * 1990-07-20 1993-07-06 Norton Company Diamond having multiple coatings and methods for their manufacture
WO2002068702A3 (en) * 2001-02-26 2003-04-03 Gen Electric Metal-infiltrated polycrystalline diamond composite tool formed from coated diamond particles
WO2004094685A3 (en) * 2003-04-22 2004-12-16 Diamond Innovations Inc Method to provide wear-resistant coating and related coated articles

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