BE405656A - - Google Patents
Info
- Publication number
- BE405656A BE405656A BE405656DA BE405656A BE 405656 A BE405656 A BE 405656A BE 405656D A BE405656D A BE 405656DA BE 405656 A BE405656 A BE 405656A
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- steel
- projectiles
- steels
- hard
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 241000237858 Gastropoda Species 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 235000019589 hardness Nutrition 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Laminated Bodies (AREA)
Description
<Desc/Clms Page number 1>
L'emploi de plus en plus étendu de plaques de blindage en aciers à alliages traités dont la résistance atteint souvent 220 kilos sur la face cémentée, rend ineffi- cace les projectiles fabriqués actuellement en acier au car-
EMI1.1
bone, au chrome-nickel ou au chrome-nickel-molybdène.
La dureté des meilleurs obus ou balles usinés dans ces aciers ne dépasse guère 600 Brinell, soit environ 200 kilos de résistance. Ces projectiles sont devenus insuffisants pour perforer des plaques de blindage traitées, oémentées et trempées, ayant jusqu'à 220 kilos de résistance en surface.
La présente invention a pour but de remédier à ce défaut et elle concerne un procédé d'établissement de projectiles à grande puissance de perforation qui se caractérise Procédé d'établissement de projectiles à grande puissance de perforation et produits nouveaux en résultant.
<Desc/Clms Page number 2>
par l'assemblage, par des moyens métallurgiques, de deux aciers différents, dont l'un, extrêmement dur et résistant, constitue la pointe ou l'ogive et l'autre, plus tenace et résilient, le corps du projectile.
L'acier dur employé pour l'ogive est de la catégorie des aciers au tungstène, chrome, molybdène, vanadium ou autres éléments durcissants, qui permettent d'obtenir après trempe des duretés Brinell de 630 à 725, soit 250 à 250 kilos de résistance. Ces aciers attaquent facilement la couche de cémentation et traversent les plaques les plus résistantes.
L'acier tenace formant le corps du projectile est de la catégorie des aciers au nickel, nickel-chrome, nickel-molybdène, chrome-nickel-molybdène, ou similaires, donnant après trempe (sans revenu) 500 à 600 Brinell, soit 140 à 200 kilos de résistance. Ces aciers, d'une résilience beaucoup plus élevée que ceux de la catégorie précédente, permettent d'éviter les ruptures prématurées au choc, notamment des obus creux, projectiles explosifs, etc.., qui doivent traverser les plaques sans se briser. rour fabriquer des projectiles d'après le procédé, objet de l'invention, on assemble par soudure ou par tout autre moyen métallurgique, un tronçon d'@cier de la première catégorie (dure) correspondant à l'ogive de l'obus avec un tronçon d'acier de la deuxième catégorie (tenace) correspondant au corps de l'obus.
On fait subir un recuit à ces pièces assemblées et on procède ensuite à l'usinage mécanique. Le projectile usiné est subsidiairement traité thermiquement suivant la nature des aciers constitutifs,
Pour donner une plus grande résistance à la pointe de l'obus, il est avantageux de former l'ogive par forgeage ou matrica@e
<Desc/Clms Page number 3>
D'autre part, il suffit que la pointe seulement de l'ogive soit en acier dur, la base de l'ogive pouvant être prise dans le métal tenace formant le corps.
Comme exemple, pour les deux qualités d'aciers à employer, on indiquera ci-dessous les compositions, en sus du fer, d'un acier dur pour l'ogive et d'un acier tenace pour le corps de l'obus :
Acier pour l'ogive
EMI3.1
<tb>
<tb> carbone <SEP> 1,00
<tb> tungstène <SEP> .......... <SEP> 3,50 <SEP> %
<tb> chrome <SEP> ............. <SEP> 0,80 <SEP> %
<tb>
EMI3.2
molybdène 0,40 % ÉiÉk 1 vanadium OJ30 Acier pour le corps de l'obus
EMI3.3
<tb>
<tb> carbone <SEP> ............ <SEP> 0,30 <SEP> % <SEP>
<tb>
EMI3.4
nickel ............. 4,00% nioke 4,00
EMI3.5
<tb>
<tb> chrome <SEP> ............. <SEP> 1,00 <SEP> %
<tb> molybdène <SEP> 0,30 <SEP> %
<tb>
<Desc / Clms Page number 1>
The more and more extensive use of armor plates made of treated alloy steels, the resistance of which often reaches 220 kilos on the case-hardened face, renders ineffective the projectiles currently manufactured in carbon steel.
EMI1.1
bone, chromium-nickel or chromium-nickel-molybdenum.
The hardness of the best shells or bullets machined from these steels hardly exceeds 600 Brinell, or about 200 kilograms of resistance. These projectiles became insufficient to puncture treated, embellished and tempered armor plates having up to 220 kilos of surface resistance.
The object of the present invention is to remedy this defect and it relates to a method of establishing projectiles with high perforation power, which is characterized by a method of establishing projectiles with high perforation power and new products resulting therefrom.
<Desc / Clms Page number 2>
by assembling, by metallurgical means, two different steels, one of which, extremely hard and resistant, constitutes the point or the ogive and the other, more tenacious and resilient, the body of the projectile.
The hard steel used for the ogive is of the category of tungsten, chromium, molybdenum, vanadium or other hardening elements, which make it possible to obtain after quenching Brinell hardnesses of 630 to 725, i.e. 250 to 250 kilos of resistance. . These steels easily attack the cementation layer and pass through the most resistant plates.
The tenacious steel forming the body of the projectile is of the category of nickel, nickel-chromium, nickel-molybdenum, chromium-nickel-molybdenum, or similar steels, giving after quenching (without tempering) 500 to 600 Brinell, i.e. 140 to 200 kilos of resistance. These steels, with a much higher resilience than those of the preceding category, make it possible to avoid premature rupture on impact, in particular hollow shells, explosive projectiles, etc., which must pass through the plates without breaking. rour manufacture projectiles according to the method, object of the invention, is assembled by welding or by any other metallurgical means, a section of @ cier of the first category (hard) corresponding to the warhead of the shell with a section of steel of the second category (tenacious) corresponding to the body of the shell.
These assembled parts are annealed and then mechanical machining is carried out. The machined projectile is secondarily heat treated depending on the nature of the constituent steels,
To give greater resistance to the tip of the shell, it is advantageous to form the warhead by forging or matrica @ e
<Desc / Clms Page number 3>
On the other hand, it is sufficient that only the tip of the bullet is of hard steel, the base of the bullet being able to be caught in the stubborn metal forming the body.
As an example, for the two grades of steel to be used, the compositions, in addition to iron, of a hard steel for the warhead and of a tough steel for the shell body will be indicated below:
Steel for the warhead
EMI3.1
<tb>
<tb> carbon <SEP> 1.00
<tb> tungsten <SEP> .......... <SEP> 3.50 <SEP>%
<tb> chrome <SEP> ............. <SEP> 0.80 <SEP>%
<tb>
EMI3.2
molybdenum 0.40% ÉiÉk 1 vanadium OJ30 Steel for the shell body
EMI3.3
<tb>
<tb> carbon <SEP> ............ <SEP> 0.30 <SEP>% <SEP>
<tb>
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nickel ............. 4.00% nioke 4.00
EMI3.5
<tb>
<tb> chrome <SEP> ............. <SEP> 1.00 <SEP>%
<tb> molybdenum <SEP> 0.30 <SEP>%
<tb>
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE405656A true BE405656A (en) |
Family
ID=70799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE405656D BE405656A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE405656A (en) |
-
0
- BE BE405656D patent/BE405656A/fr unknown
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