GB1450937A - Production and subsequent carburisation of steel products motor vehicle folding rear seat assembly - Google Patents

Production and subsequent carburisation of steel products motor vehicle folding rear seat assembly

Info

Publication number
GB1450937A
GB1450937A GB1287474*[A GB1287474A GB1450937A GB 1450937 A GB1450937 A GB 1450937A GB 1287474 A GB1287474 A GB 1287474A GB 1450937 A GB1450937 A GB 1450937A
Authority
GB
United Kingdom
Prior art keywords
strip
steel
powder
rolled
carburized
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
GB1287474*[A
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 British Steel Corp filed Critical British Steel Corp
Priority to GB1287474*[A priority Critical patent/GB1450937A/en
Priority to SE7408692A priority patent/SE7408692L/
Priority to DE2431797A priority patent/DE2431797A1/en
Priority to JP49075066A priority patent/JPS5070257A/ja
Priority to FR7423100A priority patent/FR2236016B3/fr
Publication of GB1450937A publication Critical patent/GB1450937A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C23C8/04—Treatment of selected surface areas, e.g. using masks
    • 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
    • C23C8/06—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 gases
    • C23C8/08—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 gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/01—Reducing atmosphere
    • B22F2201/013—Hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/30—Carburising atmosphere

Abstract

1450937 Carburizing steel strip BRITISH STEEL CORP 21 June 1974 [3 July 1973 22 March 1974] 31584/73 and 12874/74 Headings C7D and C7U A steel strip formed from powder, e.g. of high alloy tool or spring steel or martensitic Cr steel, having a C content of no more than 0À3% is rolled to its required gauge, and subsequently carburized in an atmosphere of, e.g. methane or propane. The strip may be produced by compacting wateratomized powder in contrarotating rolls and sintering the green strip in H 2 or Ar. If only part of the strip is to be carburized, e.g. for cutting edges of saw blades and razor blades, the remainder of the strip may be masked prior to carburization. The masking may be effected by applying a Cu or Niplating solution or a refractory oxide paste to the strip. In the Example, a water atomized steel powder containing 5À8% W, 4À6% Mo, 4À25% Cr, 2À01% V, 0À014% C, plus small amounts of Si, Mn, S, P and O, was rolled, the compacted powder being sintered at 1250‹C for 3 minutes in H 2 and cold-rolled by 30-70%. The powder may be annealed in H 2 prior to rolling. The cold-rolled strip was then carburized at 1050‹C for 3 hours.
GB1287474*[A 1973-07-03 1974-03-22 Production and subsequent carburisation of steel products motor vehicle folding rear seat assembly Expired GB1450937A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1287474*[A GB1450937A (en) 1973-07-03 1974-03-22 Production and subsequent carburisation of steel products motor vehicle folding rear seat assembly
SE7408692A SE7408692L (en) 1973-07-03 1974-07-02
DE2431797A DE2431797A1 (en) 1973-07-03 1974-07-02 METHOD FOR PRODUCING STRIP STEEL
JP49075066A JPS5070257A (en) 1973-07-03 1974-07-02
FR7423100A FR2236016B3 (en) 1973-07-03 1974-07-03

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3158473 1973-07-03
GB1287474*[A GB1450937A (en) 1973-07-03 1974-03-22 Production and subsequent carburisation of steel products motor vehicle folding rear seat assembly

Publications (1)

Publication Number Publication Date
GB1450937A true GB1450937A (en) 1976-09-29

Family

ID=26249329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1287474*[A Expired GB1450937A (en) 1973-07-03 1974-03-22 Production and subsequent carburisation of steel products motor vehicle folding rear seat assembly

Country Status (5)

Country Link
JP (1) JPS5070257A (en)
DE (1) DE2431797A1 (en)
FR (1) FR2236016B3 (en)
GB (1) GB1450937A (en)
SE (1) SE7408692L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103981469A (en) * 2014-05-16 2014-08-13 吴江市英力达塑料包装有限公司 High-strength spring steel and preparation method thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2802445C3 (en) * 1977-11-15 1981-02-05 British Steel Corp., London Process for the continuous production of a steel strip from steel powder
US4165243A (en) * 1978-05-31 1979-08-21 Federal-Mogul Corporation Method of making selectively carburized forged powder metal parts
DE3035772C2 (en) * 1980-09-23 1982-09-30 Schunk & Ebe Gmbh, 6301 Heuchelheim Process for the production of a surface-hardened sintered iron part
JPS60215764A (en) * 1984-04-09 1985-10-29 Nippon Steel Corp Formation of film
DE59503930D1 (en) * 1995-06-30 1998-11-19 Picard Fa Carl Aug Master blade of a saw, such as a circular or gang saw, a cutting disc, a cutting or scraping device
US6165597A (en) * 1998-08-12 2000-12-26 Swagelok Company Selective case hardening processes at low temperature
WO2000009776A1 (en) * 1998-08-12 2000-02-24 Swagelok Company Selective case hardening for metal articles
KR101515840B1 (en) * 2013-10-22 2015-05-04 디케이락 주식회사 Partially Nitrocarburizing Heat Treated Stainless Steel Ferrule and Manufacturing Method Therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103981469A (en) * 2014-05-16 2014-08-13 吴江市英力达塑料包装有限公司 High-strength spring steel and preparation method thereof

Also Published As

Publication number Publication date
FR2236016A1 (en) 1975-01-31
FR2236016B3 (en) 1977-05-06
JPS5070257A (en) 1975-06-11
SE7408692L (en) 1975-01-07
DE2431797A1 (en) 1975-01-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee