EP2027298A1 - Verfahren zur herstellung von schmiedestahl für hoch beanspruchte waffen, rohr-rohlinge sowie eine damit ausgerüstete waffe - Google Patents
Verfahren zur herstellung von schmiedestahl für hoch beanspruchte waffen, rohr-rohlinge sowie eine damit ausgerüstete waffeInfo
- Publication number
- EP2027298A1 EP2027298A1 EP07725351A EP07725351A EP2027298A1 EP 2027298 A1 EP2027298 A1 EP 2027298A1 EP 07725351 A EP07725351 A EP 07725351A EP 07725351 A EP07725351 A EP 07725351A EP 2027298 A1 EP2027298 A1 EP 2027298A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- max
- steel
- barrel
- chromium
- molybdenum
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/20—Barrels or gun tubes characterised by the material
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/12—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes barrels for ordnance
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
Definitions
- the invention relates to a production method for gun barrel blanks for machine guns, in particular in the caliber range 25-50mm.
- Standard materials for such highly loaded machine guns are heat-resistant CrMoV alloyed tempering steels, such as the previously used steel 32 CrMoV 12-10, material no. 1.7765 according to Stahl-Eisen-Liste (Verlag Stahleisen, Dusseldorf) for 30 mm machine guns.
- This material meets the requirements of high yield strength (at least 950 N / mm 2 ) with high heat resistance up to 450 ° (at least 550 N / mm 2 ) to achieve a sufficiently long service life of the pipes.
- the invention has the object to show a method for producing tubes in the middle caliber range with higher cadence and a corresponding pipe, which also meets the new requirements.
- the invention is based on the idea, similar to the tubes of the large caliber range, to provide a change in the tube material as well as their shares and a known from the large caliber, but specially adapted manufacturing process for medium caliber tubes.
- a tube for the middle caliber in functional use is exposed to a higher continuous load, as is known in large calibers, is included in the further considerations, the requirement for these medium caliber weapons that the so-called first shot of a Mittelkaliber- or Rapid Firearm in practice should provide the necessary accuracy of hit. Therefore, when choosing the pipe material is also to be considered that the gun barrel is designed for single shot as well as for high cadence.
- the new material concept be developed on the basis of an electroslag-remelted and suspended-rotary tempered NiCrMoV steel, which thus even steel the steel known for large-caliber weapons 35NiCrMoV 12-5, material no. 1.6959 corresponds as far as possible.
- This steel has hitherto not been used for high-performance machine guns, in particular because of the high heat resistance requirements for the pipe.
- this steel in modified form in conjunction with increased coating strength corresponds to the required heat resistance values.
- this new NiCrMoV steel due to its martensitic microstructure, in contrast to the Baintian CrMoV steel has a significantly increased toughness potential. Due to the high strength of the demanded safety requirements can be met to -50 0C.
- the tube produced by the new method is characterized by the fact that a higher yield strength is achieved (about 1050 N / mm 2 ). Furthermore, the tube has a sufficiently high impact strength and fracture toughness of up to -50 ° C. and has a sufficiently high heat resistance of up to + 50 ° C.
- the high degree of purity (K 0 value, maximum about 12) is a further advantage.
- the production of the gun barrel blank takes place without direct tensions, ie, the tempering takes place without subsequent straightening operation.
- a method for producing gun barrel blanks for machine guns in the preferred caliber range between 25-50 mm is characterized by the following composition: 0.25-0.50,% carbon max. 0.60% silicon mac.1.00% manganese max. 0.010% phosphorus max. 0.010% sulfur 1, 00- 1, 40% chromium 2.00 - 4.00% nickel 0.30 - 0.70% molybdenum 0.10 - 0.30 vanadium max. 0.05% aluminum and balance of iron and usual (unavoidable) impurities, wherein the blanks are made of remelted steel or open melted steel of high purity.
- composition of the tempering steel has proven to be preferred:
- the steel is preferably remelted in the cast state using the ESU process (electro-slag remelting process).
- the high microstructural homogeneity associated with this is the basis for the low-warpage annealing, which is carried out by means of oil or water cooling in the vertical immersion direction.
- the blanks, forged as a rod are tempered by the vertical liquid coating to yield strengths> 1000 N / mm 2 . During the tempering treatment, the rods rotate permanently about their axis or are mechanically rotated permanently about their axis. The mechanical processing takes place without prior straightening operation.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006025241A DE102006025241A1 (de) | 2006-05-29 | 2006-05-29 | Verfahren zur Herstellung von Schmiedestahl für hoch beanspruchte Waffen, Rohr-Rohlinge sowie eine damit ausgerüstete Waffe |
| PCT/EP2007/004443 WO2007137714A1 (de) | 2006-05-29 | 2007-05-18 | Verfahren zur herstellung von schmiedestahl für hoch beanspruchte waffen, rohr-rohlinge sowie eine damit ausgerüstete waffe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2027298A1 true EP2027298A1 (de) | 2009-02-25 |
| EP2027298B1 EP2027298B1 (de) | 2013-01-30 |
Family
ID=38293387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07725351A Active EP2027298B1 (de) | 2006-05-29 | 2007-05-18 | Verfahren zur herstellung von schmiedestahl für hoch beanspruchte waffen, rohr-rohlinge sowie eine damit ausgerüstete waffe |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100003162A1 (de) |
| EP (1) | EP2027298B1 (de) |
| JP (1) | JP5778387B2 (de) |
| DE (1) | DE102006025241A1 (de) |
| ES (1) | ES2404508T3 (de) |
| WO (1) | WO2007137714A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2524703A4 (de) * | 2010-01-15 | 2014-03-12 | Kaneka Corp | Vliesstoff für einen filter und herstellungsverfahren dafür |
| US20130323075A1 (en) * | 2012-06-04 | 2013-12-05 | General Electric Company | Nickel-chromium-molybdenum-vanadium alloy and turbine component |
| US9738334B2 (en) * | 2013-05-07 | 2017-08-22 | Arcelormittal | Track shoe having increased service life useful in a track drive system |
| CN103556069B (zh) * | 2013-11-04 | 2016-02-17 | 洛阳双瑞特种装备有限公司 | 一种高压气瓶用大直径无缝钢管及其制造方法 |
| UA118320U (uk) * | 2017-06-01 | 2017-07-25 | Товариство З Обмеженою Відповідальністю "Науково-Виробнича Компанія "Техімпекс" | Кулемет піхотний "кт-7,62" |
| CN108149154B (zh) * | 2017-12-01 | 2019-12-10 | 宝鼎科技股份有限公司 | 高压电机用高强度转子轴锻件及热处理加工方法 |
| DE102018123278A1 (de) * | 2018-09-21 | 2020-03-26 | Rheinmetall Waffe Munition Gmbh | Verfahren zur Herstellung eines mit einem Drallprofil versehenen, hochwarmfesten Waffenrohres |
| CN114410892A (zh) * | 2022-02-16 | 2022-04-29 | 攀钢集团江油长城特殊钢有限公司 | 一种en30b钎具钢轧制圆材的制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH524684A (de) * | 1967-11-11 | 1972-06-30 | Mitsubishi Heavy Ind Ltd | Verfahren zur Herstellung eines ultrahochfesten Stahles |
| DE1927822A1 (de) * | 1969-05-31 | 1972-03-02 | Heckler & Koch Gmbh | Verfahren zur Herstellung eines vergueteten Waffenlaufes |
| US5524019A (en) * | 1992-06-11 | 1996-06-04 | The Japan Steel Works, Ltd. | Electrode for electroslag remelting and process of producing alloy using the same |
| JPH08120400A (ja) * | 1994-10-25 | 1996-05-14 | Japan Steel Works Ltd:The | 超高圧圧力容器用鋼およびその製造方法 |
| DE19531260C5 (de) * | 1995-08-25 | 2006-06-22 | Edelstahlwerke Buderus Ag | Verfahren zur Herstellung eines Warmarbeitsstahls |
| JP2000080444A (ja) * | 1998-08-31 | 2000-03-21 | Sumitomo Heavy Ind Ltd | 銃砲身用合金鋼 |
| DE19841671A1 (de) * | 1998-09-11 | 2000-03-16 | Rheinmetall W & M Gmbh | Geschützrohr |
| SE516130C2 (sv) * | 1999-03-15 | 2001-11-19 | Damasteel Ab | Ämne för metallprodukt, förfarande för framställning av metallprodukt samt metallprodukt |
| DE10111304C2 (de) * | 2001-03-09 | 2003-03-20 | Buderus Edelstahlwerke Ag | Verfahren zur Herstellung von Rohren für schwere Geschütze |
-
2006
- 2006-05-29 DE DE102006025241A patent/DE102006025241A1/de not_active Withdrawn
-
2007
- 2007-05-18 EP EP07725351A patent/EP2027298B1/de active Active
- 2007-05-18 JP JP2009512451A patent/JP5778387B2/ja active Active
- 2007-05-18 WO PCT/EP2007/004443 patent/WO2007137714A1/de not_active Ceased
- 2007-05-18 ES ES07725351T patent/ES2404508T3/es active Active
- 2007-05-18 US US12/227,887 patent/US20100003162A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007137714A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006025241A1 (de) | 2007-12-06 |
| EP2027298B1 (de) | 2013-01-30 |
| ES2404508T3 (es) | 2013-05-28 |
| JP2009538983A (ja) | 2009-11-12 |
| US20100003162A1 (en) | 2010-01-07 |
| JP5778387B2 (ja) | 2015-09-16 |
| WO2007137714A1 (de) | 2007-12-06 |
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