EP0423004A1 - Stahl mit hoher Härte für Panzerungen, Panzerungen und deren Herstellungsverfahren - Google Patents

Stahl mit hoher Härte für Panzerungen, Panzerungen und deren Herstellungsverfahren Download PDF

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Publication number
EP0423004A1
EP0423004A1 EP90402777A EP90402777A EP0423004A1 EP 0423004 A1 EP0423004 A1 EP 0423004A1 EP 90402777 A EP90402777 A EP 90402777A EP 90402777 A EP90402777 A EP 90402777A EP 0423004 A1 EP0423004 A1 EP 0423004A1
Authority
EP
European Patent Office
Prior art keywords
steel
high hardness
shielding
armour
temperature
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
EP90402777A
Other languages
English (en)
French (fr)
Other versions
EP0423004B1 (de
Inventor
Rémi Roux
Laurent Sangoy
Jacques Leger
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.)
Industeel Creusot
Original Assignee
Creusot Loire SA
Creusot Loire Industrie SA
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 Creusot Loire SA, Creusot Loire Industrie SA filed Critical Creusot Loire SA
Publication of EP0423004A1 publication Critical patent/EP0423004A1/de
Application granted granted Critical
Publication of EP0423004B1 publication Critical patent/EP0423004B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/26—Peepholes; Windows; Loopholes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/023—Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F41H5/045—Layered armour containing metal all the layers being metal layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics

Definitions

  • the present invention relates to a high hardness steel for armor, over-armor and overprotection flap, usable in the form of sheet metal and / or parts and having high ballistic performance.
  • hot rolling is carried out at a temperature between 1150 and 1250 ° C with a degree of wrought greater than 2.
  • the quenching in press which avoids significant deformation Aunt of the sheet, is carried out after heating to a temperature between 800 and 960 ° C.
  • the overprotection flap allows acceptable visibility and provides effective ballistic protection.
  • the steel according to the invention has better properties in elasticity and in hardness than 28 NCD6 steel with a comparable impact resistance.
  • the steel according to the invention can be cut by plasma, flame cutting or laser process, with precautions adapted to the different sheet thicknesses.
  • the latter In order to optimize the ballistic performance of the sheet subjected to the impacts of projectiles, the latter, after rolling, is pierced with orifices.
  • the holes have, for example, a diameter between 3 and 15 mm.
  • the sheet pierced with orifices is then quenched, then subjected to tempering under the conditions described above.
  • the surface mass of the perforated sheet is reduced in the ratio of the overall surface of the orifices to the total surface of the sheet before drilling, the sheet being able to have from 30 to 60% reduction in weight, for the same ballistic protection efficiency.
  • the holes improve the resistance to cracking during impacts.
  • the shielding is formed from a massive sheet 1 (Fig. 1) according to the invention, covered on one of its faces or on its two faces with a material synthetic 2 such as for example an elastomer which can be reinforced, by mixing it with a synthetic fiber.
  • a material synthetic 2 such as for example an elastomer which can be reinforced
  • the invention finds its application in particular of armor plating, placed in front of armorings of already existing structure, armor plating which make it possible to smash the projectile and therefore to reduce its perforating power.
  • the invention also finds its application in a ballistic overprotection shutter for windows or windshields of light armored vehicles.
  • the shell 10 has openings and in particular at the front an opening 20 provided with glazing 30 that is slightly armored and allowing the driver to have good visibility and thus be able to steer the vehicle.
  • the vehicle is equipped with folding flaps 40 formed by a shield 50 of very high hardness steel according to the invention.
  • the shield 50 is pierced with a multitude of small orifices 60 regularly distributed and representing 30 to 60% of vacuum relative to the surface of said plate.
  • the orifices 60 have a diameter less than the smallest caliber which the windshield and the shutter 40 alone do not protect with the glazing 30 an empty space. This arrangement makes it possible to obtain over-protection of the windows or windshield of the vehicle, while ensuring visibility thanks to the large number of small orifices 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Body Structure For Vehicles (AREA)
  • Heat Treatment Of Articles (AREA)
EP90402777A 1989-10-09 1990-10-05 Stahl mit hoher Härte für Panzerungen, Panzerungen und deren Herstellungsverfahren Expired - Lifetime EP0423004B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913164A FR2652821B1 (fr) 1989-10-09 1989-10-09 Acier de haute durete pour blindage et procede d'elaboration d'un tel acier.
FR8913164 1989-10-09

Publications (2)

Publication Number Publication Date
EP0423004A1 true EP0423004A1 (de) 1991-04-17
EP0423004B1 EP0423004B1 (de) 1994-12-14

Family

ID=9386215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402777A Expired - Lifetime EP0423004B1 (de) 1989-10-09 1990-10-05 Stahl mit hoher Härte für Panzerungen, Panzerungen und deren Herstellungsverfahren

Country Status (6)

Country Link
US (1) US5122336A (de)
EP (1) EP0423004B1 (de)
AT (1) ATE115642T1 (de)
CA (1) CA2027185C (de)
DE (1) DE69015103T2 (de)
FR (1) FR2652821B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505239A1 (de) * 1991-03-19 1992-09-23 Creusot-Loire Industrie Verfahren zum Herstellen von Sieben aus Flachstahl durch Stanzen oder Schneiden
EP0580062A1 (de) * 1992-07-21 1994-01-26 Thyssen Stahl Aktiengesellschaft Verfahren zur Herstellung von dicken Panzerblechen
GB2297094A (en) * 1995-01-20 1996-07-24 British Steel Plc Improvements in and relating to carbide-free bainitic steels and methods of producing such steels
EP1705257A1 (de) * 2005-03-24 2006-09-27 Benteler Automobiltechnik GmbH Panzerung für ein Fahrzeug
EP2093304A1 (de) * 2008-02-20 2009-08-26 Benteler Automobiltechnik GmbH Panzerung für ein Fahrzeug
WO2012010829A1 (en) * 2010-07-21 2012-01-26 The Secretary Of State For Defence An armour element

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50202536D1 (de) * 2001-12-19 2005-04-28 Boehler Bleche Gmbh Muerzzusch Wekstoff mit hoher ballistischer Schutzwirkung
JP4698921B2 (ja) * 2002-01-22 2011-06-08 出光興産株式会社 焼入れ方法
DE102004006093B3 (de) * 2004-02-06 2005-12-01 Fes Gmbh Fahrzeug-Entwicklung Sachsen Verfahren zur Herstellung eines dreidimensional geformten Panzerungsbauteils für Fahrzeugkarosserien
RU2481417C2 (ru) * 2007-08-01 2013-05-10 ЭйТиАй ПРОПЕРТИЗ, ИНК. Высокотвердые, с высокой ударной вязкостью сплавы на основе железа и способы их изготовления
US8444776B1 (en) 2007-08-01 2013-05-21 Ati Properties, Inc. High hardness, high toughness iron-base alloys and methods for making same
DE102008014914B4 (de) * 2007-08-23 2013-07-04 Vps Vehicle Protection Systems Gmbh Strukturteil für eine Fahrzeug-Panzerung
DE102007039993A1 (de) * 2007-08-23 2009-02-26 Edag Gmbh & Co. Kgaa Strukturteil für eine Fahrzeug-Panzerung
DE102008035388B4 (de) 2008-07-29 2011-01-20 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Kraftfahrzeug-Panzerungsbauteils
GB2483267B (en) * 2010-09-02 2014-10-15 Bae Systems Plc Armour assembly
US9182196B2 (en) 2011-01-07 2015-11-10 Ati Properties, Inc. Dual hardness steel article
RU2456368C1 (ru) * 2011-02-08 2012-07-20 Российская Федерация, от имени которой выступает Министерство промышленности и торговли (Минпромторг России) Высокопрочная стойкая при динамическом воздействии сталь и способ производства листов из нее
US9657363B2 (en) 2011-06-15 2017-05-23 Ati Properties Llc Air hardenable shock-resistant steel alloys, methods of making the alloys, and articles including the alloys
DE102012100573A1 (de) 2012-01-24 2013-07-25 Krauss-Maffei Wegmann Gmbh & Co. Kg Schutzelement zum Schutz gegen ballistische Geschosse und militärisches Fahrzeug
US9499890B1 (en) 2012-04-10 2016-11-22 The United States Of America As Represented By The Secretary Of The Navy High-strength, high-toughness steel articles for ballistic and cryogenic applications, and method of making thereof
RU2499844C1 (ru) * 2012-07-20 2013-11-27 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" Способ производства листовой стали
RU2520247C1 (ru) * 2013-03-01 2014-06-20 Общество с ограниченной ответственностью Научно-производственная фирма "ЛВС" Высокопрочная броневая сталь и способ производства листов из нее
DE102016108836B4 (de) * 2016-05-12 2018-05-24 Benteler Automobiltechnik Gmbh Kraftfahrzeugbauteil sowie Verfahren zu dessen Herstellung
DE102019116363A1 (de) 2019-06-17 2020-12-17 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Panzerungsbauteils für Kraftfahrzeuge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH23749A (de) * 1901-03-02 1902-09-15 Adolph Leven Einrichtung zum Schutz gegen Geschosse
GB572964A (en) * 1943-06-23 1945-10-31 Finkl & Sons Co Improvements in or relating to steel alloys and die blocks made from said steel alloys
FR909972A (fr) * 1944-10-13 1946-05-23 Suspension hydraulique pour véhicules à quatre roues
FR1146389A (fr) * 1956-04-03 1957-11-12 Blindage composite stratifié
GB886605A (en) * 1959-05-11 1962-01-10 Mond Nickel Co Ltd Alloy steels and articles made thereof
US3507633A (en) * 1967-04-17 1970-04-21 Fernand J Dewez Jr Circular saw blade of chromium nickel steel with an oxide coat
DE1963405A1 (de) * 1969-12-18 1971-07-15 Hoesch Ag Schutzblende

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170727A (en) * 1937-07-17 1939-08-22 Whitin Machine Works Production of spindle blades
US3152020A (en) * 1961-05-11 1964-10-06 United States Steel Corp Fracture tough ultra high strength steel sheets

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH23749A (de) * 1901-03-02 1902-09-15 Adolph Leven Einrichtung zum Schutz gegen Geschosse
GB572964A (en) * 1943-06-23 1945-10-31 Finkl & Sons Co Improvements in or relating to steel alloys and die blocks made from said steel alloys
FR909972A (fr) * 1944-10-13 1946-05-23 Suspension hydraulique pour véhicules à quatre roues
FR1146389A (fr) * 1956-04-03 1957-11-12 Blindage composite stratifié
GB886605A (en) * 1959-05-11 1962-01-10 Mond Nickel Co Ltd Alloy steels and articles made thereof
US3507633A (en) * 1967-04-17 1970-04-21 Fernand J Dewez Jr Circular saw blade of chromium nickel steel with an oxide coat
DE1963405A1 (de) * 1969-12-18 1971-07-15 Hoesch Ag Schutzblende

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505239A1 (de) * 1991-03-19 1992-09-23 Creusot-Loire Industrie Verfahren zum Herstellen von Sieben aus Flachstahl durch Stanzen oder Schneiden
FR2674255A1 (fr) * 1991-03-19 1992-09-25 Creusot Loire Procede d'une fabrication de piece ouvree en acier ayant une tres forte resistance a l'abrasion, par decoupage d'un produit plat et piece ouvree obtenue.
EP0580062A1 (de) * 1992-07-21 1994-01-26 Thyssen Stahl Aktiengesellschaft Verfahren zur Herstellung von dicken Panzerblechen
DE4223895C1 (de) * 1992-07-21 1994-03-17 Thyssen Stahl Ag Verfahren zur Herstellung von dicken Panzerblechen
US5458704A (en) * 1992-07-21 1995-10-17 Thyssen Stahl Ag Process for the production of thick armour plates
GB2297094A (en) * 1995-01-20 1996-07-24 British Steel Plc Improvements in and relating to carbide-free bainitic steels and methods of producing such steels
GB2297094B (en) * 1995-01-20 1998-09-23 British Steel Plc Improvements in and relating to Carbide-Free Bainitic Steels
EP1705257A1 (de) * 2005-03-24 2006-09-27 Benteler Automobiltechnik GmbH Panzerung für ein Fahrzeug
US7357060B2 (en) 2005-03-24 2008-04-15 Benteler Automobiltechnik Gmbh Vehicle armor
EP2093304A1 (de) * 2008-02-20 2009-08-26 Benteler Automobiltechnik GmbH Panzerung für ein Fahrzeug
WO2012010829A1 (en) * 2010-07-21 2012-01-26 The Secretary Of State For Defence An armour element

Also Published As

Publication number Publication date
FR2652821A1 (fr) 1991-04-12
CA2027185A1 (fr) 1991-04-10
ATE115642T1 (de) 1994-12-15
EP0423004B1 (de) 1994-12-14
US5122336A (en) 1992-06-16
FR2652821B1 (fr) 1994-02-18
DE69015103D1 (de) 1995-01-26
CA2027185C (fr) 2000-05-02
DE69015103T2 (de) 1995-05-04

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