CN111595207B - Bullet - Google Patents
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- CN111595207B CN111595207B CN202010587474.6A CN202010587474A CN111595207B CN 111595207 B CN111595207 B CN 111595207B CN 202010587474 A CN202010587474 A CN 202010587474A CN 111595207 B CN111595207 B CN 111595207B
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- Prior art keywords
- shell
- bullet
- injection
- injection molding
- bottom edge
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/26—Cartridge cases
- F42B5/30—Cartridge cases of plastics, i.e. the cartridge-case tube is of plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
本发明公开了一种子弹，涉及子弹相关技术领域，包括弹壳，所述弹壳的一端连接有弹头，所述弹壳的一端连接有底缘，所述弹壳由高强度热塑性树脂、金属粉和增强纤维材料通过注塑工艺制成，所述弹壳的尾部边缘处开设有连接孔，所述底缘的一侧边缘处固定连接有连接柱，所述弹壳的生产工艺为：A：选定材料、B：烘干材料、C：模具预热、D：三级注塑、E：注射保压、F：冷却模具、G：吹出冷水、H：开模取件。本发明利用高强度热塑性树脂、金属粉和增强纤维材料制作弹壳，方便携带，减少了向弹膛传导的热量，有利于持续射击，利用注塑工艺制作弹壳，不仅工艺简单，便于大批量生产，而且材料成本低，降低了生产成本。
The invention discloses a bullet, and relates to the technical field related to bullets, including a cartridge case, one end of the cartridge case is connected to a bullet head, one end of the cartridge case is connected to a bottom edge, the cartridge case is made of high-strength thermoplastic resin, metal powder and reinforced fiber material through an injection molding process, a connection hole is opened at the tail edge of the cartridge case, and a connecting column is fixedly connected to one side edge of the bottom edge, and the production process of the cartridge case is: A: selecting materials, B: drying materials, C: preheating the mold, D: three-stage injection molding, E: injection pressure holding, F: cooling the mold, G: blowing out cold water, and H: opening the mold to take out the parts. The invention uses high-strength thermoplastic resin, metal powder and reinforced fiber material to make the cartridge case, which is convenient to carry, reduces the heat conducted to the chamber, and is conducive to continuous shooting. The cartridge case is made by injection molding, which is not only simple in process and convenient for mass production, but also has low material cost, thereby reducing production cost.
Description
Technical Field
The invention relates to the technical field of bullets, in particular to a bullet.
Background
The bullet is a weapon emitted by a firearm, and is generally composed of a warhead, a projectile body, a propellant and a primer cap, wherein the propellant burns to generate high-pressure gas to push the warhead out, and an empty shell and an empty primer cap are taken as the shell to be discharged out of a gun chamber.
Most of the prior bullet shells are made of metal materials, and have the defects that the metal shells are heavy and inconvenient to carry, the metal has more heat conducted to the bullet chamber, the environment of the gun chamber is influenced, the continuous shooting is not facilitated, the manufacturing process of the bullet shells is complex, the materials are expensive, and the production cost is high.
Therefore, it is necessary to propose a bullet to solve the above problems.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a bullet, which solves the problems of heavy weight, inconvenient carrying, large quantity of heat conducted to a bullet chamber by metal, unfavorable continuous shooting, complex manufacturing process of the bullet, expensive material and high production cost of the traditional metal bullet.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The utility model provides a bullet, includes the shell case, the one end of shell case is connected with the warhead, the one end of shell case is connected with the bottom edge, the shell case is made through injection molding technology by high strength thermoplastic resin, metal powder and reinforcing fiber material, the shell case includes shell head, shell shoulder and shell wall, the shell opening has been seted up to the one end of shell head, the inboard fixedly connected with metal ring of shell opening, fixedly connected with metal level in the shell wall of shell case afterbody, the ignition hole has been seted up at the afterbody middle part of shell case, the connecting hole has been seted up to the afterbody edge of shell case, one side edge fixedly connected with spliced pole of bottom edge, the middle part outside fixedly connected with annular flange of spliced pole.
Optionally, the connecting hole is matched with the connecting column, and the annular flange is connected with the connecting hole in an extrusion mode.
Optionally, the middle part fixedly connected with detonator of bottom edge, the bottom edge is copper material.
Optionally, the production process of the shell comprises the following steps:
selecting high-strength thermoplastic resin, metal powder and reinforced fiber material as injection molding materials;
B, drying the injection molding material in a drying oven at 70-90 ℃ for 1-3 hours to make the humidity of the injection molding material less than 0.05%, and then continuously feeding the injection molding material by adopting an automatic feeding system;
Preheating a die, namely mounting the injection die on an injection molding machine, preheating the die before die assembly in production, setting the preheating temperature to be 80-100 ℃, setting the temperature of an electric heating pipe of a movable die to be 65-75 ℃, and then die assembly;
The injection molding machine is used for injecting the mold, the pressure is controlled in three injection stages during injection, the switching position of the first-stage screw is adjusted to enable the plastic melt to just enter 6-10% of the volume of the cavity through the runner, the switching position of the second-stage screw is adjusted to enable the plastic melt to fill 75-85% of the cavity, and the switching position of the third-stage screw is adjusted to enable the plastic melt to fill 98-99%;
E, injection pressure maintaining, namely, maintaining the pressure at 70% -80% of the maximum injection pressure, wherein the speed is lower than the minimum injection pressure in each stage, and the time is maintained for 30-40 s;
F, cooling the mold by using cooling water with the temperature of 20-24 ℃, and injecting the cooling water into the mold for cooling by adopting a full-automatic system control technology;
Blowing out cold water, namely blowing in air by the system after cooling is finished, and blowing out cooling water in a water channel of the die;
and H, opening the mould to take out the part, namely opening the mould and taking out the finished shell product.
Optionally, the ratio of the high-strength thermoplastic resin to the metal powder to the reinforcing fiber is 5:1:1.
Optionally, the high-strength thermoplastic resin is composed of one or more materials of PE-polyethylene, PP-polypropylene, PVC-polyvinyl chloride, PS-polystyrene and PA-polyamide.
Optionally, the metal powder is composed of one or more materials of copper, tin, manganese and chromium.
Optionally, the reinforcing fiber is composed of one or more materials of aramid fiber, glass fiber, carbon fiber and boron fiber.
Optionally, in the step D, the injection pressure of the first stage is 80% -90%, the injection speed is 15% -20%, the injection pressure of the second stage is 85% -95%, the injection speed is 20% -40%, the injection pressure of the third stage is 80% -90%, and the injection speed is 10% -20%.
(III) beneficial effects
The invention provides a bullet, which has the following beneficial effects:
1. The invention utilizes the high-strength thermoplastic resin, the metal powder and the reinforced fiber material to manufacture the bullet shell, thereby not only reducing the weight of the bullet and facilitating the carrying, but also greatly increasing the proportion of the composite material, thereby reducing the heat conducted to the bullet chamber and being beneficial to continuous shooting.
2. The bullet is assembled conveniently by the matching arrangement among the connecting holes, the connecting columns and the annular flange, the bullet shell and the bottom edge are fastened more, the reliability of connection between the bullet shell and the bottom edge is improved, and the reliability of the composite material part and the metal part is ensured.
3. The invention utilizes the injection molding process to manufacture the shell, which not only has simple process and is convenient for mass production, but also has low material cost and reduced production cost.
Drawings
FIG. 1 is a schematic perspective view of a bullet structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a bullet structure of the present invention;
FIG. 3 is a schematic cross-sectional view of a cartridge case structure according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present invention;
Fig. 5 is a process flow diagram of the cartridge case structure of the present invention.
In the figure, 1, a shell, 11, a shell opening, 12, a shell head, 13, a shell shoulder, 14, a shell wall, 15, a connecting hole, 16, a firing hole, 17, a metal ring, 18, a metal layer, 2, the shell head, 3, a bottom edge, 31, a detonator, 33, a connecting column and 34, and an annular flange.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the invention, as shown in fig. 1-5, a technical scheme is provided:
The bullet comprises a bullet shell 1, one end of the bullet shell 1 is connected with a bullet head 2, one end of the bullet shell 1 is connected with a bottom edge 3, the bullet shell 1 is made of high-strength thermoplastic resin, metal powder and reinforced fiber materials through an injection molding process, the bullet shell 1 is made of the high-strength thermoplastic resin, the metal powder and the reinforced fiber materials, on one hand, the weight of the bullet is reduced, the bullet is convenient to carry, on the other hand, the proportion of composite materials is greatly increased, thereby reducing the heat conducted to a bullet chamber, the bullet shell 1 is favorable for continuous shooting, the bullet shell 1 comprises the bullet head 12, a shell shoulder 13 and a shell wall 14, one end of the bullet head 12 is provided with a shell opening 11, the inner side of the shell opening 11 is fixedly connected with a metal ring 17, the inner side of the shell opening 11 is fixedly connected with a metal layer 18 through the metal ring 17, the outer side of the upper section of the bullet shell 1 is made of plastic, the inner side of the shell 1 is coated with metal, the material directly contacting the bullet head is made of the metal, the lower section of the bullet shell 1 is made of plastic, the middle is coated with the metal, the pulling elastic force is improved, the middle part of the bullet shell 1 is provided with a middle part and the tail 16 and the leading edge 3 is provided with a circular flange 33, the bottom edge 33 is fixedly connected with the bottom edge 33, the bottom edge is more convenient to be matched with the middle part of the bullet shell 1, the bottom edge 3, the bottom edge is fixedly connected with the bottom edge 33, the bottom edge is connected with the bottom edge 3, the bottom edge is connected with the bottom edge 33, and the bottom edge is 3, and the bottom edge is connected with the bottom edge 3, and the bottom edge is 3 is connected with the bottom edge 3, and with the bottom edge is 3, and 3 is fixedly and with the bottom edge is connected with the bottom edge 33, the reliability of the composite material part and the metal part is ensured.
Embodiment one:
The production process of the shell comprises the following steps:
Selecting a material, namely selecting a high-strength thermoplastic resin, metal powder and a reinforced fiber material as injection molding materials, wherein the ratio of the high-strength thermoplastic resin to the metal powder to the reinforced fiber is 5:1:1, the high-strength thermoplastic resin consists of PE-polyethylene, PP-polypropylene and PVC-polyvinyl chloride materials, the metal powder consists of copper, tin and manganese materials, and the reinforced fiber consists of aramid fiber and glass fiber materials;
b, drying the injection molding material in a drying oven at 70 ℃ for 1h to enable the humidity to be less than 0.05%, and then adopting an automatic feeding system to continuously feed;
the mould preheating, namely installing an injection mould on an injection molding machine, preheating the mould before producing and closing the mould, setting the preheating temperature to 80 ℃, setting the temperature of an electric heating pipe of a movable mould to 65 ℃, and then closing the mould;
The injection molding machine is used for injecting the mold, the injection molding machine is used for controlling the injection stage to divide the pressure into three stages, the switching position of the first-stage screw is adjusted to enable the plastic melt to just enter 6% of the volume of the cavity through the runner, the switching position of the second-stage screw is adjusted to enable the plastic melt to fill 75% of the cavity, and the switching position of the third-stage screw is adjusted to enable the plastic melt to fill 98%, wherein the first-stage injection pressure is 80%, the injection speed is 15%, the second-stage injection pressure is 85%, the injection speed is 20%, the third-stage injection pressure is 80%, and the injection speed is 10%;
e, injection pressure maintaining, wherein the pressure maintaining pressure is 70% of the maximum injection pressure, the speed is lower than the minimum injection pressure in each stage, and the time is maintained for 30s;
f, cooling the mold by using cooling water with the temperature of 20 ℃, and injecting the cooling water into the mold for cooling by adopting a full-automatic system control technology;
Blowing out cold water, namely blowing in air by the system after cooling is finished, and blowing out cooling water in a water channel of the die;
and H, opening the mould to take out the part, namely opening the mould and taking out the finished shell product.
Embodiment two:
The production process of the shell comprises the following steps:
Selecting a high-strength thermoplastic resin, metal powder and a reinforced fiber material as injection molding materials, wherein the ratio of the high-strength thermoplastic resin to the metal powder to the reinforced fiber is 5:1:1, the high-strength thermoplastic resin is composed of PE-polyethylene, PVC-polyvinyl chloride and PA-polyamide materials, the metal powder is composed of copper and chromium materials, and the reinforced fiber is composed of glass fiber and carbon fiber materials;
B, drying the injection molding material in a drying oven at 80 ℃ for 2 hours to enable the humidity to be less than 0.05%, and then adopting an automatic feeding system to continuously feed;
the mould preheating, namely installing an injection mould on an injection molding machine, preheating the mould before producing and closing the mould, setting the preheating temperature to 90 ℃, setting the temperature of a movable mould electric heating pipe to 70 ℃, and then closing the mould;
The injection molding machine is used for injecting the mold, the injection molding machine is used for controlling the injection stage to divide the pressure into three stages, the switching position of the first-stage screw is adjusted to enable the plastic melt to just enter 8% of the volume of the cavity through the runner, the switching position of the second-stage screw is adjusted to enable the plastic melt to fill 80% of the cavity, and the switching position of the third-stage screw is adjusted to enable the plastic melt to fill 99% of the cavity, wherein the first-stage injection pressure is 85%, the injection speed is 18%, the second-stage injection pressure is 90%, the injection speed is 30%, the third-stage injection pressure is 85%, and the injection speed is 15%;
e, injection pressure maintaining, wherein the pressure maintaining pressure is 75% of the maximum injection pressure, the speed is lower than the minimum injection pressure in each stage, and the time is maintained for 35s;
F, cooling the mold by using cooling water with the temperature of 22 ℃, and injecting the cooling water into the mold for cooling by adopting a full-automatic system control technology;
Blowing out cold water, namely blowing in air by the system after cooling is finished, and blowing out cooling water in a water channel of the die;
and H, opening the mould to take out the part, namely opening the mould and taking out the finished shell product.
Embodiment III:
The production process of the shell comprises the following steps:
Selecting a material, namely selecting a high-strength thermoplastic resin, metal powder and a reinforced fiber material as injection molding materials, wherein the ratio of the high-strength thermoplastic resin to the metal powder to the reinforced fiber is 5:1:1, the high-strength thermoplastic resin consists of PP-polypropylene, PVC-polyvinyl chloride and PA-polyamide materials, the metal powder consists of manganese and chromium materials, and the reinforced fiber consists of carbon fiber and boron fiber materials;
B, drying the injection molding material in a drying oven at 90 ℃ for 3 hours to enable the humidity to be less than 0.05%, and then adopting an automatic feeding system to continuously feed;
The mould preheating, namely installing an injection mould on an injection molding machine, preheating the mould before producing and closing the mould, setting the preheating temperature to be 100 ℃, setting the temperature of an electric heating pipe of a movable mould to be 75 ℃, and then closing the mould;
The injection molding machine is used for injecting the mold, the injection molding machine is used for controlling the injection stage to divide the pressure into three stages, the switching position of the first-stage screw is adjusted to enable the plastic melt to just enter 10% of the volume of the cavity through the runner, the switching position of the second-stage screw is adjusted to enable the plastic melt to fill 85% of the cavity, and the switching position of the third-stage screw is adjusted to enable the plastic melt to fill 99% of the cavity, wherein the first-stage injection pressure is 90%, the injection speed is 20%, the second-stage injection pressure is 95%, the injection speed is 40%, the third-stage injection pressure is 90%, and the injection speed is 20%;
E, injection pressure maintaining, wherein the pressure maintaining pressure is 80% of the maximum injection pressure, the speed is lower than the minimum injection pressure in each stage, and the time is maintained for 40s;
F, cooling the mold by using cooling water with the temperature of 24 ℃, and injecting the cooling water into the mold for cooling by adopting a full-automatic system control technology;
Blowing out cold water, namely blowing in air by the system after cooling is finished, and blowing out cooling water in a water channel of the die;
and H, opening the mould to take out the part, namely opening the mould and taking out the finished shell product.
The bullet shell can be manufactured through the three groups of embodiments, wherein the bullet shell manufactured through the second group of embodiments has the best effect, and the injection molding process is adopted to manufacture the bullet shell 1, so that the process is simple, the mass production is convenient, the material cost is low, and the production cost is reduced.
In summary, the bullet is made of the high-strength thermoplastic resin, the metal powder and the reinforced fiber material, so that the weight of the bullet is reduced, the bullet is convenient to carry, the proportion of the composite material is greatly increased, the heat conducted to the bullet chamber is reduced, continuous shooting is facilitated, the bullet is convenient to assemble, the bullet shell 1 is fastened with the bottom edge 3 more tightly through the cooperation arrangement among the connecting holes 15, the connecting columns 33 and the annular flange 34, the reliability of connection between the bullet shell 1 and the bottom edge 3 is improved, the reliability of the composite material part and the metal part is guaranteed, and the bullet shell 1 is made of the injection molding technology.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present invention.
Claims (3)
1. The bullet comprises a bullet shell (1), wherein one end of the bullet shell (1) is connected with a bullet head (2), one end of the bullet shell (1) is connected with a bottom edge (3), the bullet shell is characterized in that the bullet shell (1) is made of high-strength thermoplastic resin, metal powder and reinforced fiber materials through an injection molding process, the bullet shell (1) comprises a shell head (12), a shell shoulder (13) and a shell wall (14), a shell opening (11) is formed in one end of the shell head (12), a metal ring (17) is fixedly connected to the inner side of the shell opening (11), a metal layer (18) is fixedly connected to the inner side of the shell wall (14) at the tail part of the bullet shell (1), a fire-inducing hole (16) is formed in the middle part of the tail part of the bullet shell (1), a connecting hole (15) is formed in the tail part of the bullet shell (1), a connecting column (33) is fixedly connected to one side edge of the bottom edge (3), and an annular flange (34) is fixedly connected to the middle part of the connecting column (33).
The production process of the shell comprises the following steps:
Selecting a high-strength thermoplastic resin, metal powder and a reinforced fiber material as injection molding materials, wherein the ratio of the high-strength thermoplastic resin to the metal powder to the reinforced fiber is 5:1:1, the high-strength thermoplastic resin is composed of one or more materials of PE-polyethylene, PP-polypropylene, PVC-polyvinyl chloride, PS-polystyrene and PA-polyamide, the metal powder is composed of one or more materials of copper, tin, manganese and chromium, and the reinforced fiber is composed of one or more materials of aramid fiber, glass fiber, carbon fiber and boron fiber;
B, drying the injection molding material in a drying oven at 70-90 ℃ for 1-3 hours to make the humidity of the injection molding material less than 0.05%, and then continuously feeding the injection molding material by adopting an automatic feeding system;
Preheating a die, namely mounting the injection die on an injection molding machine, preheating the die before die assembly in production, setting the preheating temperature to be 80-100 ℃, setting the temperature of an electric heating pipe of a movable die to be 65-75 ℃, and then die assembly;
The injection molding machine is used for injecting the mold, the injection molding machine is used for controlling the pressure in three injection stages, the switching position of the first-stage screw is adjusted to enable the plastic melt to just enter 6% -10% of the volume of the cavity through the runner, the switching position of the second-stage screw is adjusted to enable the plastic melt to fill 75% -85% of the cavity, the switching position of the third-stage screw is adjusted to enable the plastic melt to fill 98% -99% of the cavity, the first-stage injection pressure is 80% -90%, the injection speed is 15% -20%, the second-stage injection pressure is 85% -95%, the injection speed is 20% -40%, the third-stage injection pressure is 80% -90%, and the injection speed is 10% -20%;
E, injection pressure maintaining, namely, maintaining the pressure at 70% -80% of the maximum injection pressure, wherein the speed is lower than the minimum injection pressure in each stage, and the time is maintained for 30-40 s;
F, cooling the mold by using cooling water with the temperature of 20-24 ℃, and injecting the cooling water into the mold for cooling by adopting a full-automatic system control technology;
Blowing out cold water, namely blowing in air by the system after cooling is finished, and blowing out cooling water in a water channel of the die;
and H, opening the mould to take out the part, namely opening the mould and taking out the finished shell product.
2. The process for producing a bullet according to claim 1, characterized in that said connecting hole (15) is adapted to the connecting post (33), and said annular flange (34) is extrusion-connected to the connecting hole (15).
3. The bullet production process according to claim 1, wherein a detonator (31) is fixedly connected to the middle part of the bottom edge (3), and the bottom edge (3) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587474.6A CN111595207B (en) | 2020-06-24 | 2020-06-24 | Bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587474.6A CN111595207B (en) | 2020-06-24 | 2020-06-24 | Bullet |
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| Publication Number | Publication Date |
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| CN111595207A CN111595207A (en) | 2020-08-28 |
| CN111595207B true CN111595207B (en) | 2025-03-11 |
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| CN103538201A (en) * | 2012-07-17 | 2014-01-29 | 贵州华昌群建模塑有限公司 | Assisting type steam highlight traceless injection moulding process of front housing of large-size LED (Light Emitting Diode) television |
| KR20200025344A (en) * | 2018-08-30 | 2020-03-10 | 주식회사 풍산 | Lightweight Cartridge Ammunition |
| CN212431943U (en) * | 2020-06-24 | 2021-01-29 | 湖南天合终极防务科技实业有限公司 | Bullet |
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| GB394037A (en) * | 1932-01-09 | 1933-06-22 | Hoarce Ainley Roberts | Improvements relating to the manufacture of cartridge cases |
| DE2829837C2 (en) * | 1978-07-07 | 1983-04-07 | Osaka City | Injection molding tool with heat-insulating mold cavity coating |
| CN2284375Y (en) * | 1996-04-09 | 1998-06-17 | 辽阳隆生塑胶有限公司 | Injection shell case series |
| CA2494840A1 (en) * | 2002-08-07 | 2004-02-19 | E. I. Du Pont De Nemours And Company | High density composition of matter, articles made therefrom, and processes for the preparation thereof |
| US20050005807A1 (en) * | 2002-10-29 | 2005-01-13 | Polytech Ammunition Company | Lead free, composite polymer based bullet and cartridge case, and method of manufacturing |
| US8240252B2 (en) * | 2005-03-07 | 2012-08-14 | Nikica Maljkovic | Ammunition casing |
| CN200952922Y (en) * | 2006-06-27 | 2007-09-26 | 肖忠渊 | Cartridge case made of carbon fiber |
| CN102977595B (en) * | 2012-08-17 | 2014-06-25 | 安徽凯迪电气有限公司 | Plastic connector for vehicles and manufacturing method thereof |
| CN205537363U (en) * | 2016-01-25 | 2016-08-31 | 杨杰 | Bullet |
| CN108059765A (en) * | 2016-11-09 | 2018-05-22 | 上海朗亿新材料科技有限公司 | A kind of conductive polymeric composite and preparation method thereof |
| CN106738667A (en) * | 2016-11-26 | 2017-05-31 | 滁州市荣康塑料制品有限公司 | For the spraying-free high-surface gloss traceless injection molding process of LED television fore shell |
| CN109203405A (en) * | 2018-08-17 | 2019-01-15 | 山东泰氏新材料科技有限责任公司 | A kind of method that the online reinforced polypropylene of long fibre is directly molded |
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2020
- 2020-06-24 CN CN202010587474.6A patent/CN111595207B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538201A (en) * | 2012-07-17 | 2014-01-29 | 贵州华昌群建模塑有限公司 | Assisting type steam highlight traceless injection moulding process of front housing of large-size LED (Light Emitting Diode) television |
| KR20200025344A (en) * | 2018-08-30 | 2020-03-10 | 주식회사 풍산 | Lightweight Cartridge Ammunition |
| CN212431943U (en) * | 2020-06-24 | 2021-01-29 | 湖南天合终极防务科技实业有限公司 | Bullet |
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| CN111595207A (en) | 2020-08-28 |
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