GB1363764A - Method for surface hardening steel and cemented carbides - Google Patents

Method for surface hardening steel and cemented carbides

Info

Publication number
GB1363764A
GB1363764A GB3469971A GB3469971A GB1363764A GB 1363764 A GB1363764 A GB 1363764A GB 3469971 A GB3469971 A GB 3469971A GB 3469971 A GB3469971 A GB 3469971A GB 1363764 A GB1363764 A GB 1363764A
Authority
GB
United Kingdom
Prior art keywords
substrate
powder
parts
carbide
composition
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
GB3469971A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1363764A publication Critical patent/GB1363764A/en
Expired 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal 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
    • C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
    • C23C12/02—Diffusion in one step
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/68—Boronising
    • C23C8/70—Boronising of ferrous surfaces

Abstract

1363764 Hardening surfaces by boriding A BOPP 23 July 1971 [28 July 1970] 34699/71 Headings C7F and C7U A boriding composition comprises a mixture containing (parts by weight) 5 to 85 boron carbide, 1 to 73 anhydrous alumina, 1 p. p. m. to 6 wt. parts NaBF 4 , and 1 p.p.m. to 10 wt. parts NaF, and is used to treat a steel or cemented carbide substrate at a temperature above 570‹ C in an essentially oxygen-free atmosphere. The composition may be a 180-320 mesh/cm powder and may have added to it CF 4 as a gaseous activator, Mg as basic carbonate to prevent sintering of the powder to the substrate, T, Zr, Hf, V, Nb, Ta, Cr, Mo, W, or an oxide, carbide, boride, nitride or silicide of any of these, and C black may also be added. The powder may be dispersed in a vehicle such as oil or dibutyl phthalate for application to the surface of a large object by spraying, immersion, or wiping, or the substrate may be packed in the powder composition. The upper temperature limit is usually 1150‹C; protective atmospheres are N 2 , CO 2 , or inert gas; the substrate may be an alloy steel, e.g. containing Cr, W, or Ni, or a cemented carbide, e.g. WC 94%-CO 6%.
GB3469971A 1970-07-28 1971-07-23 Method for surface hardening steel and cemented carbides Expired GB1363764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1148470A CH556394A (en) 1970-07-28 1970-07-28 PROCESS FOR SURFACE HARDENING OF STEELS AND SINTER HARD METALS.

Publications (1)

Publication Number Publication Date
GB1363764A true GB1363764A (en) 1974-08-14

Family

ID=4373934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3469971A Expired GB1363764A (en) 1970-07-28 1971-07-23 Method for surface hardening steel and cemented carbides

Country Status (5)

Country Link
US (1) US3770512A (en)
CH (1) CH556394A (en)
DE (1) DE2137244A1 (en)
FR (1) FR2099641B1 (en)
GB (1) GB1363764A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344830A (en) * 1998-12-16 2000-06-21 Smith International Boronized wear-resistant materials
GB2363391A (en) * 1998-07-09 2001-12-19 Sachs Race Eng Gmbh Friction clutch with nickel-chromium alloy spring means and processes associated with making such spring means

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32110E (en) * 1971-05-26 1986-04-15 General Electric Co. Aluminum oxide coated cemented carbide product
CH540990A (en) * 1971-07-07 1973-08-31 Battelle Memorial Institute Method for increasing the wear resistance of the surface of a cutting tool
CA974155A (en) * 1971-12-20 1975-09-09 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for forming a carbide layer on the surface of an iron or ferrous alloy article
US3935034A (en) * 1972-01-24 1976-01-27 Howmet Corporation Boron diffusion coating process
AT324796B (en) * 1973-08-07 1975-09-25 Boehler & Co Ag Geb DECARIFICATION PROTECTION OF IRON AND STEEL SURFACES
FR2450286A1 (en) * 1979-02-27 1980-09-26 Armines METHOD AND DEVICE FOR BLOCKING METAL WORKPIECES
FR2466512A1 (en) * 1979-09-28 1981-04-10 Zaets Inna Diffusion coating of ferrous metals - obtd. via powder contg. titanium, chromium, molybdenum, and boron, used to protect chemical plant against corrosion
WO1982003094A1 (en) * 1981-03-05 1982-09-16 Metal Techn Inc Turbine Abrasion and erosion resistant articles and method therefor
US4398968A (en) * 1981-08-28 1983-08-16 Koichiro Koyama Method of boronizing transition metal surfaces
EP0110960A4 (en) * 1982-05-24 1986-02-20 Eugene V Clark Improvements in mechanical seal structures.
US4555326A (en) * 1984-05-17 1985-11-26 Betz Laboratories, Inc. Methods and compositions for boronizing metallic surfaces
JPH07188898A (en) * 1993-12-27 1995-07-25 Parker Netsushiyori Kogyo Kk Solid boronizing method and container therefor
DE19904629C2 (en) * 1999-02-05 2003-08-21 Durferrit Gmbh Paste-shaped borating agent, its use and method for producing low-pore Fe¶2¶B-containing boride layers
US6503344B2 (en) 1999-02-05 2003-01-07 Houghton Durferrit Gmbh Boronizing agent in paste form
CN107201495B (en) * 2017-06-12 2019-11-22 武汉力盾新材料科技有限公司 A kind of high abrasion boride coating fabrication method for hard sealed valve sealing surface

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029162A (en) * 1959-05-21 1962-04-10 Chromalloy Corp Process for the production of metallic borides on the surface of metals
US3286684A (en) * 1962-12-24 1966-11-22 Ling Temco Vought Inc Cementation coating pack
US3622374A (en) * 1969-01-14 1971-11-23 Ritter Praulder Corp Diffusion coating of ferrous articles
US3673005A (en) * 1969-09-18 1972-06-27 Kempten Elektroschmelz Gmbh Process for borating metals,especially steel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363391A (en) * 1998-07-09 2001-12-19 Sachs Race Eng Gmbh Friction clutch with nickel-chromium alloy spring means and processes associated with making such spring means
GB2363391B (en) * 1998-07-09 2002-06-12 Sachs Race Eng Gmbh Friction clutch with nickel-chromium alloy spring means and processes associated with making such spring means
GB2344830A (en) * 1998-12-16 2000-06-21 Smith International Boronized wear-resistant materials
GB2344830B (en) * 1998-12-16 2003-10-22 Smith International Boron-containing composite bodies

Also Published As

Publication number Publication date
FR2099641B1 (en) 1973-06-29
FR2099641A1 (en) 1972-03-17
CH556394A (en) 1974-11-29
DE2137244A1 (en) 1972-02-03
US3770512A (en) 1973-11-06

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Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees