CH610398A5 - Screen for protection against the impact and exothermic action of an armour-piercing explosive charge - Google Patents
Screen for protection against the impact and exothermic action of an armour-piercing explosive chargeInfo
- Publication number
- CH610398A5 CH610398A5 CH1065275A CH1065275A CH610398A5 CH 610398 A5 CH610398 A5 CH 610398A5 CH 1065275 A CH1065275 A CH 1065275A CH 1065275 A CH1065275 A CH 1065275A CH 610398 A5 CH610398 A5 CH 610398A5
- Authority
- CH
- Switzerland
- Prior art keywords
- rods
- corundum
- agglomerated
- plate
- screen
- Prior art date
Links
- 239000002360 explosive Substances 0.000 title claims description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 13
- 239000010431 corundum Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 9
- 239000010937 tungsten Substances 0.000 claims abstract description 9
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 7
- 229920001342 Bakelite® Polymers 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004637 bakelite Substances 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 6
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- 239000004111 Potassium silicate Substances 0.000 claims description 2
- HJIYJLZFNBHCAN-UHFFFAOYSA-N [V].[C] Chemical compound [V].[C] HJIYJLZFNBHCAN-UHFFFAOYSA-N 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 claims description 2
- 229940072033 potash Drugs 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 2
- 235000015320 potassium carbonate Nutrition 0.000 claims description 2
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000000206 moulding compound Substances 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 abstract 1
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
- F41H5/02—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
-
- 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
- F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Ceramic Products (AREA)
Abstract
The screen comprises a metal plate spiked with metal rods (1) preventing direct attack of the charge, according to the main Patent No. 599525, and provides that the free ends (4) of the metal rods (1) are topped with a cap (6) of tungsten particles coated with chrome/carbon/vanadium steel, while the base (2) of the rods is embedded in a mass of corundum agglomerated with electromolten cement, sodium silicate or molten phenolic moulding compound, in particular Bakelite. <IMAGE>
Description
**ATTENTION** debut du champ DESC peut contenir fin de CLMS **.
REVENDICATION
Ecran de protection contre l'impact et l'action exothermique d'une charge explosive perforante, selon la revendication du brevet principal, caractérisé en ce que toutes les extrémités libres des tiges métalliques le hérissant sont surmontées d'un chapeau de particules de tungstène enrobées d'un acier chrome/carbone/vanadium, tandis que la base des tiges est prise dans une masse de corindon aggloméré avec du ciment électrofondu, du silicate de soude ou du phénoplaste fondu.
SOUS-REVENDICATIONS
1. Ecran selon la revendication, caractérisé en ce que toutes les tiges ont une même longueur.
2. Ecran selon la revendication, dont les tiges comportent une base et une tête de section carrée, réunies par une portion cylindrique, caractérisé en ce que la masse de corindon aggloméré enrobe la base carrée.
3. Ecran selon la revendication et la sous-revendication 2, caractérisé en ce que les tiges sont en étroit contact les unes avec les autres de façon à former, vues en bout, un damier, mais comportant des cases vides, dues à l'absence de tiges.
4. Ecran selon la revendication comportant, à l'opposé des tiges, une isolation thermique, suivie d'une plaque en acier réfractaire et d'une seconde isolation thermique, caractérisé en ce que l'isolation thermique est composée de corindon ajouté à un mélange à 50% d'oxyde de zirconium aggloméré par un silicate de potasse ou du phénoplaste fondu.
5. Ecran selon la revendication et les sous-revendications 2 et 3, caractérisé en ce que les tiges et la plaque, dont elles émergent, forment un tout mécanosoudé.
6. Ecran selon la revendication et les sous-revendications 2 et 3, caractérisé en ce que les tiges et la plaque, dont elles émergent, sont en une pièce venue de fonderie.
Le brevet principal N" 599525 concerne un écran de protection contre l'impact et l'action exothermique d'une charge explosive perforante et prévoit, selon sa revendication, que ledit écran comporte une plaque métallique hérissée de tiges métalliques qui empêchent la charge de l'atteindre.
Or, il existe des charges qui, en plus de l'action exothermique, exercent un effet abrasif en facilitant l'action perforante, comme par exemple les charges creuses à action thermodynamique.
Le but de la présente invention est de perfectionner l'écran selon le brevet principal de sorte à lui permettre de résister aux effets de telles charges, ou à la vitesse de propagation du cuivre ou ou de tout autre métal utilisé pour la perforation.
Ce résultat est obtenu en munissant les extrémités libres de toutes les tiges métalliques hérissant l'écran d'un chapeau de particules de tungstène enrobées d'un acier/chrome/carbone vanadium, tandis que la base des tiges est prise dans une masse de corindon aggloméré avec du ciment électrofondu, du silicate de soude ou du phénoplaste fondu.
Le dessin annexé représente une forme d'exécution de l'objet de l'invention donnée à titre d'exemple.
Son unique figure est une coupe partielle de l'écran, laissant voir deux tiges contiguës.
Ces tiges se trouvent en 1, chacune possédant une embase carrée 2, une partie centrale cylindrique 3 et une extrémité libre carrée 4, semblable à l'embase, elle-même fixée dans la plaque 5.
Les tiges sont contiguës, c'est-à-dire se touchent par les arêtes de leurs parties carrées, par lesquelles elles sont soudées les unes aux autres ou encore venues d'une seule pièce, le tout comme cela a été décrit dans le brevet principal.
Mais, en plus de cela, l'extrémité libre de chaque tige est, dans le cas présent, surmontée d'un chapeau 6 (en coupe sur la tige de droite), constitué de particules granuleuses de tungstène, enrobées d'un acier chrome/carbone/vanadium, tandis que les embases des tiges sont, de leur côté, prises dans une masse 7 faite de corindon de grain correspondant au tamis N" 60, aggloméré avec du ciment électrofondu, du silicate de soude ou de la Bakélite, et de tout autre liant non fusible. La hauteur des chapeaux peut par exemple être de 6 à 10 mm, et celle des embases de l'ordre de 20 à 30 mm.
Le dépôt de tungstène peut par exemple se faire à l'arc électrique ou, de préférence, sous plasma.
Dans le brevet principal, il était prévu que la plaque 5 supportant les tiges 1 pouvait être suivie d'une plaque en acier réfractaire prise entre deux isolations thermiques.
Dans la présente forme d'exécution, une telle plaque est également prévue en 8, précédée d'une couche 9 de corindon dont le grain correspondra au tamis N" 60, ajouté à un mélange à 50% d'oxyde de zirconium aggloméré par un silicate de potasse ou de la Bakélite fondue et suivie d'au moins une isolation thermique 10 également résistante à l'abrasion et aux effets thermodynamiques.
La piéce métallique à protéger se trouve enfin en 11, derrière l'isolation thermique précitée.
Dans le brevet principal, il était prévu des tiges de deux longueurs différentes, alternant les unes avec les autres. Cela est aussi possible dans le cas présent, mais on donnera la préférence à un ensemble de tiges toutes de même longueur.
Les chapeaux des tiges atteignent une dureté très élevée et, outre qu'ils supportent des températures très élevées, offrent une résistance partiquement totale à l'abrasion.
** ATTENTION ** start of DESC field can contain end of CLMS **.
CLAIM
Protective screen against the impact and exothermic action of a perforating explosive charge, according to the claim of the main patent, characterized in that all the free ends of the metal rods bristling with it are surmounted by a cap of coated tungsten particles of a chromium / carbon / vanadium steel, while the base of the rods is taken in a mass of corundum agglomerated with electrofused cement, sodium silicate or molten phenoplast.
SUB-CLAIMS
1. Screen according to claim, characterized in that all the rods have the same length.
2. Screen according to claim, the rods of which comprise a base and a head of square section, joined by a cylindrical portion, characterized in that the mass of agglomerated corundum coats the square base.
3. Screen according to claim and sub-claim 2, characterized in that the rods are in close contact with each other so as to form, seen from the end, a checkerboard, but comprising empty boxes, due to the absence of stems.
4. Screen according to claim comprising, opposite the rods, thermal insulation, followed by a refractory steel plate and a second thermal insulation, characterized in that the thermal insulation is composed of corundum added to a 50% mixture of zirconium oxide agglomerated with a potassium silicate or molten phenoplast.
5. Screen according to claim and sub-claims 2 and 3, characterized in that the rods and the plate, from which they emerge, form a whole mechanically welded.
6. Screen according to claim and sub-claims 2 and 3, characterized in that the rods and the plate, from which they emerge, are in one piece from the foundry.
The main patent N "599525 relates to a shield for protection against the impact and the exothermic action of a perforating explosive charge and provides, according to its claim, that said shield comprises a metal plate bristling with metal rods which prevent the charge of the armor. 'achieve.
However, there are loads which, in addition to the exothermic action, exert an abrasive effect by facilitating the perforating action, such as for example shaped charges with thermodynamic action.
The object of the present invention is to improve the screen according to the main patent so as to enable it to resist the effects of such loads, or the propagation speed of copper or or any other metal used for perforation.
This result is obtained by providing the free ends of all the metal rods bristling with the screen with a cap of tungsten particles coated with a steel / chrome / carbon vanadium, while the base of the rods is taken in a mass of corundum. agglomerated with electrofused cement, sodium silicate or molten phenoplast.
The appended drawing represents an embodiment of the object of the invention given by way of example.
Its only figure is a partial cross-section of the screen, showing two contiguous rods.
These rods are found at 1, each having a square base 2, a central cylindrical part 3 and a square free end 4, similar to the base, itself fixed in the plate 5.
The rods are contiguous, that is to say touch each other by the edges of their square parts, by which they are welded to each other or even come in a single piece, all as described in the patent. main.
But, in addition to that, the free end of each rod is, in this case, surmounted by a cap 6 (in section on the right rod), made of granular particles of tungsten, coated with a chromium steel / carbon / vanadium, while the bases of the rods are, for their part, taken in a mass 7 made of grain corundum corresponding to the N "60 sieve, agglomerated with electrofused cement, sodium silicate or Bakelite, and of any other non-fusible binder The height of the caps may for example be 6 to 10 mm, and that of the bases of the order of 20 to 30 mm.
The tungsten deposition can for example be carried out with an electric arc or, preferably, in plasma.
In the main patent, it was provided that the plate 5 supporting the rods 1 could be followed by a refractory steel plate caught between two thermal insulations.
In the present embodiment, such a plate is also provided at 8, preceded by a layer 9 of corundum, the grain of which will correspond to the N "60 sieve, added to a 50% mixture of zirconium oxide agglomerated by a silicate of potash or molten Bakelite and followed by at least one thermal insulation 10 also resistant to abrasion and thermodynamic effects.
The metal part to be protected is finally located at 11, behind the aforementioned thermal insulation.
In the main patent, rods of two different lengths were provided, alternating with each other. This is also possible in the present case, but preference will be given to a set of rods all of the same length.
The caps of the rods reach a very high hardness and, in addition to being able to withstand very high temperatures, they offer almost total resistance to abrasion.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1065275A CH610398A5 (en) | 1975-08-15 | 1975-08-15 | Screen for protection against the impact and exothermic action of an armour-piercing explosive charge |
| DE19762601562 DE2601562A1 (en) | 1975-07-02 | 1976-01-16 | ARMOR PLATE |
| FR7618866A FR2316573A1 (en) | 1975-07-02 | 1976-06-11 | Armoured plate for preventing penetration by explosives - has bars on its surface with pure tungsten coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1065275A CH610398A5 (en) | 1975-08-15 | 1975-08-15 | Screen for protection against the impact and exothermic action of an armour-piercing explosive charge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH610398A5 true CH610398A5 (en) | 1979-04-12 |
Family
ID=4365411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1065275A CH610398A5 (en) | 1975-07-02 | 1975-08-15 | Screen for protection against the impact and exothermic action of an armour-piercing explosive charge |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH610398A5 (en) |
-
1975
- 1975-08-15 CH CH1065275A patent/CH610398A5/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |