EP2029957B8 - Projectile made of steel softened to the core and manufacturing process therefore - Google Patents

Projectile made of steel softened to the core and manufacturing process therefore Download PDF

Info

Publication number
EP2029957B8
EP2029957B8 EP07719212A EP07719212A EP2029957B8 EP 2029957 B8 EP2029957 B8 EP 2029957B8 EP 07719212 A EP07719212 A EP 07719212A EP 07719212 A EP07719212 A EP 07719212A EP 2029957 B8 EP2029957 B8 EP 2029957B8
Authority
EP
European Patent Office
Prior art keywords
steel
particles
core
subjected
manufacturing process
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.)
Not-in-force
Application number
EP07719212A
Other languages
German (de)
French (fr)
Other versions
EP2029957A1 (en
EP2029957B1 (en
Inventor
Alain Schmitz
Gisèle Walmag
Vittorino Tusset
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.)
Centre De Recherches Metallurgiques Asbl - Centrum
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of EP2029957A1 publication Critical patent/EP2029957A1/en
Application granted granted Critical
Publication of EP2029957B1 publication Critical patent/EP2029957B1/en
Publication of EP2029957B8 publication Critical patent/EP2029957B8/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/04—Cartridges, i.e. cases with propellant charge and missile of pellet type
    • F42B7/046—Pellets or shot therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49712—Ball making

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat Treatment Of Articles (AREA)
  • Powder Metallurgy (AREA)
  • Metal Extraction Processes (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

The present invention relates to a process for manufacturing a projectile made of steel or based on iron, for a hunting or sports cartridge, for the purpose of giving it a Vickers hardness at room temperature of between 40 HV 10 and 110 HV 10, preferably between 40 HV 10 and 85 HV 10, characterized at least by the following successive steps:—liquid pig iron or steel is used, hereafter called liquid metal, the carbon content of which is between 0.8 and 4.0% C by weight, preferably between 0.8 and 2.0% C by weight;—the liquid metal is cast using a steam or water-vapor granulation process to obtain spheroidal steel particles; —said particles are subjected to a heat treatment for softening the solidified metal by graphitization, while remaining in the ferritic range; and—optionally, said particles are subjected to a surface coating treatment.
EP07719212A 2006-06-16 2007-05-21 Projectile made of steel softened to the core and manufacturing process therefore Not-in-force EP2029957B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2006/0329A BE1017170A3 (en) 2006-06-16 2006-06-16 PROJECTILE IN STEEL ADOUCI A HEART.
PCT/BE2007/000048 WO2007143800A1 (en) 2006-06-16 2007-05-21 Projectile made of steel softened to the core

Publications (3)

Publication Number Publication Date
EP2029957A1 EP2029957A1 (en) 2009-03-04
EP2029957B1 EP2029957B1 (en) 2009-11-11
EP2029957B8 true EP2029957B8 (en) 2010-03-10

Family

ID=37758711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07719212A Not-in-force EP2029957B8 (en) 2006-06-16 2007-05-21 Projectile made of steel softened to the core and manufacturing process therefore

Country Status (7)

Country Link
US (1) US8356555B2 (en)
EP (1) EP2029957B8 (en)
AT (1) ATE448464T1 (en)
BE (1) BE1017170A3 (en)
DE (1) DE602007003221D1 (en)
ES (1) ES2336150T3 (en)
WO (1) WO2007143800A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014062267A2 (en) * 2012-07-27 2014-04-24 Olin Corporation Frangible projectile
ES2864159T3 (en) * 2014-01-24 2021-10-13 Rautaruukki Oyj Ultra High Strength Hot Rolled Steel Strip Product
DE102019135875A1 (en) * 2019-12-30 2021-07-01 Ruag Ammotec Ag Full storey, intermediate for the production of a full storey and process for the production of a full storey
DE102021104760A1 (en) 2021-02-26 2022-09-01 Ruag Ammotec Ag Deformation projectile for police and authority ammunition
DE102021104757A1 (en) 2021-02-26 2022-09-01 Ruag Ammotec Ag Metallic practice cartridge bullet

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439772A (en) * 1946-04-09 1948-04-13 Steel Shot Producers Inc Method and apparatus for forming solidified particles from molten material
US2867554A (en) * 1953-04-20 1959-01-06 Olin Mathieson Process of making soft iron shot
US4023985A (en) * 1975-09-29 1977-05-17 Cleveland Metal Abrasive, Inc. Steel abrasives and method for producing same
US4035116A (en) * 1976-09-10 1977-07-12 Arthur D. Little, Inc. Process and apparatus for forming essentially spherical pellets directly from a melt
JPH0832921B2 (en) * 1988-12-14 1996-03-29 株式会社関ケ原製作所 Fine grain steel shot and its manufacturing method
JP3830119B2 (en) * 1998-12-04 2006-10-04 東洋精鋼株式会社 Cut-wire iron shot for blasting
EP1068037A4 (en) * 1999-01-29 2001-11-14 Olin Corp Steel ballistic shot and production method
US6749662B2 (en) * 1999-01-29 2004-06-15 Olin Corporation Steel ballistic shot and production method
US7399334B1 (en) * 2004-05-10 2008-07-15 Spherical Precision, Inc. High density nontoxic projectiles and other articles, and methods for making the same
SE528991C2 (en) * 2005-08-24 2007-04-03 Uddeholm Tooling Ab Steel alloy and tools or components made of the steel alloy

Also Published As

Publication number Publication date
ES2336150T3 (en) 2010-04-08
US8356555B2 (en) 2013-01-22
WO2007143800A1 (en) 2007-12-21
US20090301338A1 (en) 2009-12-10
DE602007003221D1 (en) 2009-12-24
ATE448464T1 (en) 2009-11-15
EP2029957A1 (en) 2009-03-04
BE1017170A3 (en) 2008-03-04
EP2029957B1 (en) 2009-11-11

Similar Documents

Publication Publication Date Title
EP2029957B8 (en) Projectile made of steel softened to the core and manufacturing process therefore
BR0011428A (en) Highly reinforced spring and process to produce the same
CN105316565B (en) High-strength low-hardness ferritic nodular cast iron roller ring and manufacturing method thereof
DE602005012320D1 (en) FILTER MEDIA AND MANUFACTURING METHOD THEREFOR
HK1128041A1 (en) Method for manufacturing spheroidal cast iron mechanical components
EA200800969A1 (en) METHODS OF HEAT TREATMENT OF THICK-WALL QUARKS
BR112022006193A2 (en) COLD-LAMINATED STEEL SHEET WITH HOT TREATMENT AND MANUFACTURING METHOD OF COLD-LAMINATED STEEL SHEET WITH HOT TREATMENT
ATE488321T1 (en) FRICTION WELDING PROCESS
RU2010145257A (en) A DISK USED IN AGRICULTURE, IN PARTICULAR A DISK USED FOR PLANTING
WO2006026700A3 (en) Optimization of steel metallurgy to improve broach tool life
CN103834865A (en) Method for forging wear-resistant and corrosion-resistant steel ball
TW200624700A (en) Gas heating method and a piping member for heating
RU2643774C1 (en) Cast iron
RU2479660C1 (en) Cast-iron
RU2334806C1 (en) Wear resistant iron
RU2643773C1 (en) Wear resistant alloy based on iron
RU2643770C1 (en) Cast iron
Tang et al. Study on erosion wear of ductile cast iron pipes producing by centrifugal casting.
Wu et al. Structure optimization of blast furnace cast steel stave.
Smoljan et al. Induction hardening of the ferritic ductile iron
Fu Study and application of cast steel containing boron.
Fan et al. Laser hardening of nodular cast iron.
Dong et al. Application of hypereutectic high-chromium cast iron in abrasive wear at elevated temperature.
Filippov Influence of phase composition of matrix on wear resistance of chromium-containing white cast iron
Zhang et al. Application of quantified quenching technique to Cr 12 wear-resistant cast iron.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080930

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: PROJECTILE MADE OF STEEL SOFTENED TO THE CORE AND MANUFACTURING PROCESS THEREFORE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602007003221

Country of ref document: DE

Date of ref document: 20091224

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: CENTRE DE RECHERCHES METALLURGIQUES ASBL - CENTRUM

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2336150

Country of ref document: ES

Kind code of ref document: T3

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20091111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100311

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100211

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20100812

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100521

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100512

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091111

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20160509

Year of fee payment: 10

Ref country code: DE

Payment date: 20160421

Year of fee payment: 10

Ref country code: GB

Payment date: 20160426

Year of fee payment: 10

Ref country code: CZ

Payment date: 20160427

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160422

Year of fee payment: 10

Ref country code: IT

Payment date: 20160427

Year of fee payment: 10

Ref country code: BE

Payment date: 20160425

Year of fee payment: 10

Ref country code: AT

Payment date: 20160422

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602007003221

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 448464

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170521

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170521

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170521

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180131

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171201

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170521

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531