Classifications

• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C12/00—Alloys based on antimony or bismuth
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
  • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
  • B23K35/24—Selection of soldering or welding materials proper
  • B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
  • B23K35/262—Sn as the principal constituent
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
  • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
  • B23K35/24—Selection of soldering or welding materials proper
  • B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
  • B23K35/264—Bi as the principal constituent
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
  • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
  • B23K35/24—Selection of soldering or welding materials proper
  • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
  • B23K35/282—Zn as the principal constituent
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C1/00—Making non-ferrous alloys
  • C22C1/02—Making non-ferrous alloys by melting
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C13/00—Alloys based on tin
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C13/00—Alloys based on tin
  • C22C13/02—Alloys based on tin with antimony or bismuth as the next major constituent
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C18/00—Alloys based on zinc
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C18/00—Alloys based on zinc
  • C22C18/04—Alloys based on zinc with aluminium as the next major constituent
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
  • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
  • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
  • C22C32/0042—Matrix based on low melting metals, Pb, Sn, In, Zn, Cd or alloys thereof
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
  • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
  • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
  • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
• • 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
• • 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
• • 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

Definitions

• the present invention relates to new composite materials that replace lead, among other applications, for the production of ecological ammunition such as shots, for example, comprising a metal matrix in which reinforcing metal particles are distributed.
• Density is the characteristic which provides the lead shot with excellent ballistics properties. This characteristic is what makes obtaining new materials for the production of shots suitable for said hunting activities very difficult.
• One of the replacements for lead is steel and, in fact, ammunition based on said material is available on the market.
• it has significant drawbacks which include having a low density and being harder than lead, which necessarily involves a larger amount of explosives, thus limiting the weapon that can be used.
• U.S. Pat. No. 5,264,022, U.S. Pat. No. 5,527,376 and U.S. Pat. No. 5,713,981 describe the development of shots containing iron-wolframium binary alloy in different proportions (with a percentage of wolframium of 30-46%, of 40-60%, or of 30-65%).
• the main drawback of this material is that it is very hard which translates into damage produced in the barrel of the weapon.
• U.S. Pat. No. 4,949,645 describes the development of shots formed by wolframium and a powder polymer (polyethylene or silicone rubber, for example).
• the problem of this material lies in the fact that the projectile is a non-penetrating projectile because the kinetic energy is absorbed and dissipated for deformation thereof.
• U.S. Pat. No. 6,149,705 describes the development of shots formed by a wolframium carbide powder core which can also contain elements such as tungsten or tantalum, coated with metals such as aluminum, bismuth, copper, tin or zinc.
• said ammunition has the drawback of the wolframium carbide core being too hard therefore, upon hitting the game, produces an exit wound hole on the animal.
• British patent GB 2211920 A describes the development of shots formed by zinc-aluminum or zinc-tin alloys, with possible additions of other metals such as copper, magnesium, silicon, alkaline or earth alkaline metals.
• said shots have a low density with respect to that of lead, which can lead to the need of changing the weapon.
• British patent GB 2327113 A describes the development of shots formed by a tin-bismuth alloy, preferably at the proportion of eutectic mixture (45% Bi and 55% Sn), which also have drawbacks in terms of density and purity.
• the authors provided a composite material which allowed replacing lead for its entire range of ballistics properties, since the ammunition produced from said composite material had good properties relating to the range and to the transmission of kinetic energy during impact as a result of optimal deformability.
• Said composite material was based on a metal matrix in which reinforcing particles were distributed, the metal matrix being formed by a zinc and bismuth alloy, zinc and aluminum alloy, or tin and bismuth alloy and the reinforcing metal particles being of wolframium or ferro-wolframium, subjected to oxidation before being added to the metal matrix.
• These materials are ODS (oxide dispersion strengthened)-type material.
• metal elements i.e., aluminum, bismuth and the tin-zinc alloy
• metal elements i.e., aluminum, bismuth and the tin-zinc alloy
• the new composite materials with the addition of bismuth have higher densities, lower melting point and an optimal combination of hardness-plasticity properties.
• the improvements in the composition of the composite material allow the use thereof in new applications, such as the production of leaded hooks and weights for fishing, inertial counterweights in automobiles and mobile devices, weldings in electronic products, sports equipment, radiation protection equipment, personal protection equipment, car batteries and water pipes.
• the object of the present invention is the same as that of Spanish patent ES 2223305, i.e., to provide a composite material alternative to lead for the production of ecological ammunition comprising a metal matrix and reinforcing metal particles distributed therein.
• the present invention provides an ecological ODS (oxide dispersion strengthened)-type composite material comprising a) a metal matrix formed by a zinc and bismuth alloy, zinc and aluminum alloy, tin and bismuth alloy or zinc and tin alloy and a metal selected from aluminum, bismuth and the combination thereof and b) reinforcing metal particles distributed therein selected from wolframium, ferro-wolframium, ferro-wolframium carbides, wolframium carbides, wolframium oxides and ferro-wolframium oxides, subjected to oxidation before being added to the metal matrix.
• ODS ecological ODS
• the new addition of aluminum to the composite materials of patent ES 2223305 enables obtaining a new range of materials that are lighter in weight at a lower cost, which can be used for those applications that require lightweight components, given that aluminum is a metal element with a low density.
• the base metal alloy is a zinc and bismuth alloy, tin and bismuth alloy or zinc and tin alloy
• the addition of aluminum is contemplated.
• the aluminum is present in a proportion of 0.1-10% by weight with respect to the total weight of the metal alloy.
• the base metal alloy is a zinc and aluminum alloy or zinc and tin alloy
• the addition of bismuth is contemplated.
• the bismuth is present in a proportion of 0.1-10% by weight with respect to the total weight of the metal alloy.
• the base metal alloy a zinc and tin alloy
• the addition of aluminum and/or bismuth is contemplated, each in a proportion of 0.1-10% by weight with respect to the total weight of the metal alloy.
• the metal matrix is formed by a zinc and bismuth alloy with 2-44% by weight of bismuth and 56-98% by weight of zinc; or a zinc and aluminum alloy with 75-95% by weight of zinc and 5-25% by weight of aluminum; or a bismuth and tin alloy with 71-99% by weight of bismuth and 1-29% by weight of tin, or a zinc and tin alloy with 1-99% by weight of zinc and 99-1% by weight of tin, in percentages by weight with respect to the total weight of the alloy.
• the melting temperatures of these new ODS-type materials would be comprised between 300-600° C. in the case of bismuth and zinc, between 300-650° C. in the case of zinc and aluminum, between 170-400° C. in the case of bismuth and tin, or between 300-600° C. in the case of zinc and tin.
• the reinforcing metal particles have a mean diameter of 1-500 ⁇ m.
• the proportion between the metal matrix and the reinforcing metal particles varies between 0 and 1.5.
• the metal matrix of the new composite material additionally comprises a metal selected from antimony, iron, tin, zinc, copper and combinations thereof.
• composition of the new composite material contemplated in this addition to patent ES 2223305 provides it with properties making it suitable not only for the production of ecological ammunition, but also for the production of leaded hooks and weights for fishing, inertial counterweights in automobiles and mobile devices, weldings in electronic products, sports equipment, radiation protection equipment, personal protection equipment, car batteries and water pipes.
• the new composite ODS-type material is formed by tin-bismuth base alloy and aluminum (1-10%), has a density comprised between 8-9 g/cc, a melting point comprised between 350-650° C. and mechanical properties such as a good ductility and malleability, which make it an optimal composite material for the production of leaded hooks and weights for fishing.
• the new composite material is formed by zinc-tin base alloy and bismuth (1-10%), has a density comprised between 7.5-8 g/cc, a melting point comprised between 350-650° C. and physical properties such as a low melting point, which make it an optimal composite material for use in weldings of electronic products.
• ecological ammunition produced from the composite material of the present invention is contemplated.
• said ecological ammunition is a shot with a density of 7-14 g/cm 3 .
• said shot has magnetic properties.

Applications Claiming Priority (3)

Publications (1)

Family

ID=47295536

Family Applications (1)

Country Status (14)

Cited By (4)

Families Citing this family (3)

Citations (15)

Family Cites Families (15)

• 2011
  • 2011-06-08 ES ES201130955A patent/ES2398575B1/es not_active Expired - Fee Related
• 2012
  • 2012-06-07 AR ARP120102018A patent/AR086855A1/es unknown
  • 2012-06-08 MX MX2013014313A patent/MX2013014313A/es unknown
  • 2012-06-08 JP JP2014514115A patent/JP2014523964A/ja active Pending
  • 2012-06-08 WO PCT/ES2012/070428 patent/WO2012168530A1/es active Application Filing
  • 2012-06-08 RU RU2014100119/02A patent/RU2014100119A/ru not_active Application Discontinuation
  • 2012-06-08 US US14/124,363 patent/US20140130698A1/en not_active Abandoned
  • 2012-06-08 CA CA2843682A patent/CA2843682A1/en not_active Abandoned
  • 2012-06-08 EP EP12796970.7A patent/EP2719785A1/en not_active Withdrawn
  • 2012-06-08 BR BR112013031687A patent/BR112013031687A2/pt not_active IP Right Cessation
  • 2012-06-08 CN CN201280038241.4A patent/CN103781930A/zh active Pending
  • 2012-06-08 AU AU2012266210A patent/AU2012266210A1/en not_active Abandoned
  • 2012-06-08 KR KR20147000282A patent/KR20140135143A/ko not_active Application Discontinuation
• 2013
  • 2013-12-06 CL CL2013003509A patent/CL2013003509A1/es unknown

Patent Citations (19)

Also Published As

Similar Documents

Legal Events