GB2290554A - Coatings - Google Patents

Coatings

Info

Publication number
GB2290554A
GB2290554A GB9514621A GB9514621A GB2290554A GB 2290554 A GB2290554 A GB 2290554A GB 9514621 A GB9514621 A GB 9514621A GB 9514621 A GB9514621 A GB 9514621A GB 2290554 A GB2290554 A GB 2290554A
Authority
GB
United Kingdom
Prior art keywords
blank
face
cutting edge
carbo
chamber
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.)
Granted
Application number
GB9514621A
Other versions
GB2290554B (en
GB9514621D0 (en
Inventor
David Mark Williams
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.)
McPhersons Ltd
Original Assignee
McPhersons Ltd
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
Priority claimed from GB939302384A external-priority patent/GB9302384D0/en
Application filed by McPhersons Ltd filed Critical McPhersons Ltd
Priority to GB9514621A priority Critical patent/GB2290554B/en
Publication of GB9514621D0 publication Critical patent/GB9514621D0/en
Publication of GB2290554A publication Critical patent/GB2290554A/en
Application granted granted Critical
Publication of GB2290554B publication Critical patent/GB2290554B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/221—Ion beam deposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B9/00—Blades for hand knives
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0664—Carbonitrides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/50—Substrate holders
    • C23C14/505—Substrate holders for rotation of the substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/58—After-treatment

Abstract

The invention relates to the provision of a hard surface coating on the cutting edge of a knife or other cutting implement and has for its objective to improve upon the process disclosed in co-pending EP Patent Application 93303062.9 which objective is met by a process for the production of a carbo-nitride coating comprising grinding one face of a V-shaped cutting edge of a knife blade or other cutting implement, locating the part-ground blank in a chamber provided with a means able to produce ions of a metal carbo-nitride, and subsequent to the coating process final grinding a second face of a V-shaped cutting edge, characterised by the blank being oriented such that the face to be coated is directed towards the cathode evacuating the chamber, impressing a current on a metallic element of the required metal to induce ion release, and to provide a required potential difference between the metallic element and the blank to cause ion bombardment of the blank at least over the area of the said ground face, said ion bombardment being controlled by the potential difference to induce heat in the blank to a level below the tempering temperature of the metal of the blank, releasing nitrogen and carbon-carrying gas, such as methane, into the chamber to apply a carbo-nitride coating to the face to be coated by physical vapour deposition at a temperature to cause the growth of columnar crystals, removing the blank from the chamber and grinding the second face of the V-shaped cutting edge to expose the carbo-nitride coating at the cutting tip of the cutting edge. <IMAGE>
GB9514621A 1993-02-06 1994-02-07 Coatings Expired - Fee Related GB2290554B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9514621A GB2290554B (en) 1993-02-06 1994-02-07 Coatings

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939302384A GB9302384D0 (en) 1993-02-06 1993-02-06 Coatings
GB9514621A GB2290554B (en) 1993-02-06 1994-02-07 Coatings
PCT/GB1994/000223 WO1994018354A1 (en) 1993-02-06 1994-02-07 Coatings

Publications (3)

Publication Number Publication Date
GB9514621D0 GB9514621D0 (en) 1995-10-04
GB2290554A true GB2290554A (en) 1996-01-03
GB2290554B GB2290554B (en) 1996-07-24

Family

ID=26302406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9514621A Expired - Fee Related GB2290554B (en) 1993-02-06 1994-02-07 Coatings

Country Status (1)

Country Link
GB (1) GB2290554B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166349A1 (en) * 1984-06-29 1986-01-02 Sumitomo Electric Industries, Ltd. Surface treatment process
GB2164359A (en) * 1984-09-14 1986-03-19 Atomic Energy Authority Uk Surface treatment of metals
GB2175316A (en) * 1985-05-17 1986-11-26 Atomic Energy Authority Uk Improved cutting edges
US5120596A (en) * 1988-12-15 1992-06-09 Kai R&D Center Co., Ltd. Coated blade

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166349A1 (en) * 1984-06-29 1986-01-02 Sumitomo Electric Industries, Ltd. Surface treatment process
GB2164359A (en) * 1984-09-14 1986-03-19 Atomic Energy Authority Uk Surface treatment of metals
GB2175316A (en) * 1985-05-17 1986-11-26 Atomic Energy Authority Uk Improved cutting edges
US5120596A (en) * 1988-12-15 1992-06-09 Kai R&D Center Co., Ltd. Coated blade

Also Published As

Publication number Publication date
GB2290554B (en) 1996-07-24
GB9514621D0 (en) 1995-10-04

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Legal Events

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

Effective date: 20020207