CN113891598A - Magnesium alloy display shell for vehicle and manufacturing method thereof - Google Patents
Magnesium alloy display shell for vehicle and manufacturing method thereof Download PDFInfo
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- CN113891598A CN113891598A CN202111238301.4A CN202111238301A CN113891598A CN 113891598 A CN113891598 A CN 113891598A CN 202111238301 A CN202111238301 A CN 202111238301A CN 113891598 A CN113891598 A CN 113891598A
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- magnesium alloy
- product
- die
- manufacturing
- shell body
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
Abstract
The invention discloses a magnesium alloy vehicle display shell and a manufacturing method thereof, wherein the magnesium alloy vehicle display shell comprises a shell body, the shell body is an integral piece formed by magnesium alloy materials in a die-casting manner, at least five supporting areas used for supporting and matching with a circuit board and a heat dissipation area consisting of a plurality of hexagonal cavities are formed on the inner wall of the shell body; two connecting columns are formed on the upper surface of the shell body, and two square holes serving as terminal outlets are formed between the two connecting columns; the upper surface of the shell body is provided with a plastic spraying film layer formed by plastic spraying. The manufacturing method comprises the steps of raw material selection, die manufacturing, material die casting, deburring, surface plastic spraying and inspection and warehousing. The invention is formed by die-casting the magnesium alloy material, not only has strong metal feeling and high strength, but also is safe, reliable, novel and beautiful.
Description
Technical Field
The invention relates to a manufacturing technology of automobile parts, in particular to a display shell for a vehicle, which is manufactured by adopting a magnesium alloy process, and specifically relates to a display shell for a magnesium alloy vehicle and a manufacturing method thereof.
Background
In the prior art, the shell for the automobile display in the market is formed by plastic injection molding, and the plastic-formed shell material has low strength, strong plastic sense, easy aging and low safety, so that the design requirements of safety, attractiveness, high grade and novelty of people at present cannot be met.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a magnesium alloy display shell for a vehicle and a manufacturing method thereof, wherein the magnesium alloy display shell has the advantages of strong metal feeling, high strength, beautiful appearance, novelty, safety and reliability.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a magnesium alloy display shell for a vehicle comprises a shell body, wherein the shell body is an integral piece formed by magnesium alloy materials in a die-casting mode, and at least five supporting areas used for supporting and matching with a circuit board and a heat dissipation area consisting of a plurality of hexagonal cavities are formed in the inner wall of the shell body; two connecting columns are formed on the upper surface of the shell body, and two square holes serving as terminal outlets are formed between the two connecting columns; the upper surface of the shell body is provided with a plastic spraying film layer formed by plastic spraying.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the supporting area is composed of cavity sides of a plurality of rectangular or square cavities; a wiring mark for conveniently identifying the wiring of the circuit board is formed on the inner wall of the shell body; the connecting column is formed with an assembling hole.
A protective baffle is formed on one side of the square hole on the upper surface of the shell body.
The invention also provides a manufacturing method of the display shell for the magnesium alloy vehicle, which sequentially comprises the following steps:
a) selecting a magnesium alloy material as a raw material for preparing a product, wherein the magnesium alloy material comprises, by mass, 9.08% -9.13% of aluminum, 0.58% -0.61% of zinc, 0.182% -0.219% of manganese, 0.0515% -0.0621% of silicon, 0.0012% -0.0020% of iron, 0.0017% -0.0039% of copper, 0.0005% -0.0008% of nickel, 0.0006% -0.0009% of beryllium, and the balance of magnesium;
b) manufacturing a product die by means of design software according to the structure of a product, putting the manufactured product die into a die-casting machine, and setting appropriate die-casting technological parameters;
c) putting the selected magnesium alloy material into a magnesium alloy melting holding furnace to be melted into magnesium alloy liquid, then beating the melted magnesium alloy liquid to be filled into a cavity of a product die, and maintaining the pressure by a die casting machine to obtain a product blank;
d) cleaning a material handle, a slag ladle, a pouring gate, a parting line, surface burrs and in-hole burrs of a product blank by using punching and milling equipment;
e) beautifying the surface of the product in a passivation and plastic spraying way to obtain a black beautifying plastic spraying film layer on the upper surface of the product;
f) and (4) carrying out quality inspection on the beautified product, packaging the qualified product into a warehouse, and finally obtaining the magnesium alloy automobile display shell.
The die casting parameters of the die casting machine in the step b are as follows: the injection time is 3 seconds; a pressurization start position of 580 mm to 600 mm; the slow speed is 0 m/s to 0.4 m/s; the second speed is 5.5 m/s to 6.5 m/s; the specific pressure is increased to 570-590 kg/cm; opening the mold for 3 to 7 seconds; the material temperature is controlled to be 655-670 ℃.
The model of the plastic sprayed in the step e is P2206CS/5480449, the color is black, and the thickness of the sprayed plastic film is 60-120 um; and (4) winding the product with a PE film for protection after plastic spraying.
The magnesium alloy material in the step a comprises, by mass, 9.08% of aluminum, 0.61% of zinc, 0.219% of manganese, 0.0621% of silicon, 0.0020% of iron, 0.0039% of copper, 0.0005% of nickel, 0.0007% of beryllium, and the balance of magnesium.
The magnesium alloy material in the step a comprises, by mass, 9.13% of aluminum, 0.6% of zinc, 0.185% of manganese, 0.0525% of silicon, 0.0012% of iron, 0.0019% of copper, 0.0007% of nickel, 0.0007% of beryllium, and the balance of magnesium.
The magnesium alloy material in the step a comprises, by mass, 9.09% of aluminum, 0.58% of zinc, 0.182% of manganese, 0.0594% of silicon, 0.0013% of iron, 0.0017% of copper, 0.0005% of nickel, 0.0009% of beryllium, and the balance of magnesium.
Compared with the prior art, the shell body is formed by die-casting the magnesium alloy material with low density, so that the strength of the product is greatly increased, the safety is improved, and the shell body product made of the magnesium alloy material is attractive and novel and has strong metal feeling. The invention adopts a high-tech means to ensure high design and manufacturing precision of the die, and selects proper parameters of the die casting equipment in the manufacturing of the product, thereby ensuring small deformation of the formed product and leading the product to be capable of mass and standardized production.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a top view of fig. 2.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 4 are schematic structural views of the present invention.
Wherein the reference numerals are: wiring sign P, casing body 1, support area 2, chamber limit 21, heat dissipation district 3, cavity 31, spliced pole 4, pilot hole 4a, quad slit 5, guard flap 6.
The automobile display shells used in the current market are all formed by plastic injection molding, and the plastic injection molded automobile display shells are low in product strength, strong in plastic sense and easy to age due to the characteristics of materials, so that the safety is not high. Therefore, the invention discloses a magnesium alloy vehicle display shell which comprises a shell body 1, wherein the shell body 1 is an integral piece formed by die casting a magnesium alloy material. As shown in fig. 1 and 2, at least five support regions 2 for supporting and matching with a circuit board and a heat dissipation region 3 composed of a plurality of hexagonal cavities 31 are formed on the inner cavity wall of the housing body 1. Still the columniform support column of shaping in the inner chamber of casing body 1, processing has on the support column can with screw complex hole to can fix the circuit board in the inner chamber of casing body 1 through the screw. As can be seen from fig. 2, the support area 2 is formed by a plurality of rectangular or square cavity sides 21, and the support area can ensure that the circuit board is uniformly stressed and can prevent the circuit board from being damaged during vehicle bump. The heat dissipation area 3 is formed by a plurality of hexagonal cavities 31 distributed on the inner cavity wall of the shell body 1, the heat dissipation performance of the circuit board can be guaranteed through the cavities 31, and meanwhile, the overall structural strength of the shell body 1 can be improved through the hexagonal edges of the cavities 31.
As shown in fig. 3 and 4, two connection posts 4 are formed on the upper surface of the housing body 1, and the two connection posts 4 are square posts and are bilaterally symmetrical and serve as a connection structure between the screen and the central control area. Two square holes 5 penetrating into the inner cavity of the shell body 1 are formed between the two connecting columns 4, and the two square holes 5 are used as terminal outlets of the circuit board.
As shown in fig. 2, in order to facilitate the connection of the circuit, the present invention further forms a wiring mark P for facilitating the identification of the wiring of the circuit board on the inner wall of the housing body 1. The wiring mark P provides the wire number of the wiring of the circuit board, so that the efficiency of wiring can be improved and errors can be prevented. As shown in fig. 4, the connecting pole 4 of the present invention is formed with a fitting hole 4a, and the fitting hole 4a is a hole for fitting a bearing. In order to beautify the product and improve the aesthetic property and the visibility of the product, a plastic spraying film layer is formed on the upper surface of the shell body 1 through plastic spraying by a plastic spraying process. In order to protect the terminal, a protective baffle 6 is also formed on one side of the square hole 5 on the upper surface of the shell body 1.
The invention is formed by die-casting the magnesium alloy material, not only has strong metal feeling and high strength, but also is safe, reliable, novel and beautiful.
The invention also discloses a manufacturing method of the display shell for the magnesium alloy vehicle, which sequentially comprises the following steps:
a) selecting magnesium alloy materials as raw materials for preparing products, wherein the selected magnesium alloy materials comprise, by mass, 9.08% -9.13% of aluminum, 0.58% -0.61% of zinc, 0.182% -0.219% of manganese, 0.0515% -0.0621% of silicon, 0.0012% -0.0020% of iron, 0.0017% -0.0039% of copper, 0.0005% -0.0008% of nickel, 0.0006% -0.0009% of beryllium and the balance of magnesium;
b) manufacturing a product die by means of design software according to the structure of a product, putting the manufactured product die into a die-casting machine, and setting appropriate die-casting technological parameters;
c) putting the selected magnesium alloy material into a magnesium alloy melting holding furnace to be melted into magnesium alloy liquid, then beating the melted magnesium alloy liquid to be filled into a cavity of a product die, and maintaining the pressure by a die casting machine to obtain a product blank;
d) cleaning a material handle, a slag ladle, a pouring gate, a parting line, surface burrs and in-hole burrs of a product blank by using punching and milling equipment;
e) beautifying the surface of the product in a passivation and plastic spraying way to obtain a black beautifying plastic spraying film layer on the upper surface of the product;
f) and (4) carrying out quality inspection on the beautified product, packaging the qualified product into a warehouse, and finally obtaining the magnesium alloy automobile display shell.
The die casting parameters of the die casting machine in the step b are as follows: the injection time is 3 seconds; a pressurization start position of 580 mm to 600 mm; the slow speed is 0 m/s to 0.4 m/s; the second speed is 5.5 m/s to 6.5 m/s; the specific pressure is increased to 570-590 kg/cm; opening the mold for 3 to 7 seconds; the material temperature is controlled to be 655-670 ℃.
Example one
A manufacturing method of a magnesium alloy display shell for a vehicle comprises the following steps:
a) selecting a magnesium alloy material as a raw material for preparing a product, wherein the selected magnesium alloy material comprises, by mass, 9.08% of aluminum, 0.61% of zinc, 0.219% of manganese, 0.0621% of silicon, 0.0020% of iron, 0.0039% of copper, 0.0005% of nickel, 0.0007% of beryllium and the balance of magnesium;
b) manufacturing a product die by means of design software according to the structure of a product, putting the manufactured product die into a die-casting machine, and setting appropriate die-casting technological parameters; the die casting process parameters of the die casting machine are as follows: the injection time is 3 seconds; a supercharging start position of 590 mm; the slow speed is 0.2 m/s; the second block speed is 6.0 meters per second; the specific pressure is increased by 580 kg/square centimeter; opening the mold for 5 seconds; controlling the material temperature to be 660 ℃;
c) putting the selected magnesium alloy material into a magnesium alloy melting holding furnace to be melted into magnesium alloy liquid, then beating the melted magnesium alloy liquid to be filled into a cavity of a product die, and maintaining the pressure by a die casting machine to obtain a product blank;
d) cleaning a material handle, a slag ladle, a pouring gate, a parting line, surface burrs and in-hole burrs of a product blank by using punching and milling equipment;
e) beautifying the surface of the product in a passivation and plastic spraying way to obtain a black beautifying plastic spraying film layer on the upper surface of the product; the plastic model of the spray molding is P2206CS/5480449, the color is black, and the thickness of the spray molding film is 60 um-120 um; after spraying plastics, the product is wound by a PE film for protection;
f) and (4) carrying out quality inspection on the beautified product, packaging the qualified product into a warehouse, and finally obtaining the magnesium alloy automobile display shell.
Example two
A manufacturing method of a magnesium alloy display shell for a vehicle comprises the following steps:
a) selecting a magnesium alloy material as a raw material for preparing a product, wherein the magnesium alloy material comprises, by mass, 9.13% of aluminum, 0.6% of zinc, 0.185% of manganese, 0.0525% of silicon, 0.0012% of iron, 0.0019% of copper, 0.0007% of nickel, 0.0007% of beryllium and the balance of magnesium;
b) manufacturing a product die by means of design software according to the structure of a product, putting the manufactured product die into a die-casting machine, and setting appropriate die-casting technological parameters; the die casting process parameters of the die casting machine are as follows: the injection time is 3 seconds; a pressurization start position 580 mm; the slow speed is 0.18 m/s; the second speed is 5.5 meters per second; pressurizing specific pressure of 500 kg/square centimeter; opening the mold for 4 seconds; controlling the material temperature to 655 ℃;
c) putting the selected magnesium alloy material into a magnesium alloy melting holding furnace to be melted into magnesium alloy liquid, then beating the melted magnesium alloy liquid to be filled into a cavity of a product die, and maintaining the pressure by a die casting machine to obtain a product blank;
d) cleaning a material handle, a slag ladle, a pouring gate, a parting line, surface burrs and in-hole burrs of a product blank by using punching and milling equipment;
e) beautifying the surface of the product in a passivation and plastic spraying way to obtain a black beautifying plastic spraying film layer on the upper surface of the product; the plastic model of the spray molding is P2206CS/5480449, the color is black, and the thickness of the spray molding film is 60 um-120 um; after spraying plastics, the product is wound by a PE film for protection;
f) and (4) carrying out quality inspection on the beautified product, packaging the qualified product into a warehouse, and finally obtaining the magnesium alloy automobile display shell.
EXAMPLE III
A manufacturing method of a magnesium alloy display shell for a vehicle comprises the following steps:
a) selecting a magnesium alloy material as a raw material for preparing a product, wherein the magnesium alloy material comprises, by mass, 9.09% of aluminum, 0.58% of zinc, 0.182% of manganese, 0.0594% of silicon, 0.0013% of iron, 0.0017% of copper, 0.0005% of nickel, 0.0009% of beryllium and the balance of magnesium;
b) manufacturing a product die by means of design software according to the structure of a product, putting the manufactured product die into a die-casting machine, and setting appropriate die-casting technological parameters; the die casting process parameters of the die casting machine are as follows: the injection time is 3 seconds; 595 mm of the pressurization starting position; the slow speed is 0.4 m/s; the second block speed is 6.5 meters per second; the specific pressure of the pressure is 680 kilograms per square centimeter; opening the mold for 6 seconds; controlling the material temperature to 670 ℃;
c) putting the selected magnesium alloy material into a magnesium alloy melting holding furnace to be melted into magnesium alloy liquid, then beating the melted magnesium alloy liquid to be filled into a cavity of a product die, and maintaining the pressure by a die casting machine to obtain a product blank;
d) cleaning a material handle, a slag ladle, a pouring gate, a parting line, surface burrs and in-hole burrs of a product blank by using punching and milling equipment;
e) beautifying the surface of the product in a passivation and plastic spraying way to obtain a black beautifying plastic spraying film layer on the upper surface of the product; the plastic model of the spray molding is P2206CS/5480449, the color is black, and the thickness of the spray molding film is 60 um-120 um; after spraying plastics, the product is wound by a PE film for protection;
f) and (4) carrying out quality inspection on the beautified product, packaging the qualified product into a warehouse, and finally obtaining the magnesium alloy automobile display shell.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.
Claims (9)
1. The utility model provides a magnesium alloy automobile-used display casing, includes casing body (1), characterized by: the shell body (1) is an integral piece formed by magnesium alloy materials in a die-casting mode, at least five supporting areas (2) used for supporting and matching with a circuit board and a heat dissipation area (3) consisting of a plurality of hexagonal cavities (31) are formed on the inner wall of the shell body (1); two connecting columns (4) are formed on the upper surface of the shell body (1), and two square holes (5) serving as terminal outlets are formed between the two connecting columns (4); the upper surface of the shell body (1) is provided with a plastic spraying film layer formed by plastic spraying.
2. The display housing for the magnesium alloy vehicle as set forth in claim 1, wherein: the supporting area (2) is composed of a plurality of cavity sides (21) with rectangular or square cavities; a wiring mark (P) for conveniently identifying the wiring of the circuit board is formed on the inner wall of the shell body (1); the connecting column (4) is provided with an assembling hole (4 a).
3. The display housing for the magnesium alloy vehicle as set forth in claim 2, wherein: a protective baffle (6) is formed on one side of the upper surface of the shell body (1) positioned at the square hole (5).
4. A method for manufacturing a display housing for a magnesium alloy vehicle as claimed in claim 3, wherein: the method sequentially comprises the following steps:
a) selecting a magnesium alloy material as a raw material for preparing a product, wherein the magnesium alloy material comprises, by mass, 9.08% -9.13% of aluminum, 0.58% -0.61% of zinc, 0.182% -0.219% of manganese, 0.0515% -0.0621% of silicon, 0.0012% -0.0020% of iron, 0.0017% -0.0039% of copper, 0.0005% -0.0008% of nickel, 0.0006% -0.0009% of beryllium, and the balance of magnesium;
b) manufacturing a product die by means of design software according to the structure of a product, putting the manufactured product die into a die-casting machine, and setting appropriate die-casting technological parameters;
c) putting the selected magnesium alloy material into a magnesium alloy melting holding furnace to be melted into magnesium alloy liquid, then beating the melted magnesium alloy liquid to be filled into a cavity of a product die, and maintaining the pressure by a die casting machine to obtain a product blank;
d) cleaning a material handle, a slag ladle, a pouring gate, a parting line, surface burrs and in-hole burrs of a product blank by using punching and milling equipment;
e) beautifying the surface of the product in a passivation and plastic spraying way to obtain a black beautifying plastic spraying film layer on the upper surface of the product;
f) and (4) carrying out quality inspection on the beautified product, packaging the qualified product into a warehouse, and finally obtaining the magnesium alloy automobile display shell.
5. The method for manufacturing a display housing for a magnesium alloy vehicle as set forth in claim 4, wherein: the die casting process parameters of the die casting machine in the step b are as follows: the injection time is 3 seconds; a pressurization start position of 580 mm to 600 mm; the slow speed is 0 m/s to 0.4 m/s; the second speed is 5.5 m/s to 6.5 m/s; the specific pressure is increased to 570-590 kg/cm; opening the mold for 3 to 7 seconds; the material temperature is controlled to be 655-670 ℃.
6. The method for manufacturing a display housing for a magnesium alloy vehicle as set forth in claim 5, wherein: the model of the plastic sprayed in the step e is P2206CS/5480449, the color is black, and the thickness of the sprayed plastic film is 60-120 um; and (4) winding the product with a PE film for protection after plastic spraying.
7. The method for manufacturing a display housing for a magnesium alloy vehicle as set forth in claim 4, wherein: the magnesium alloy material in the step a comprises, by mass, 9.08% of aluminum, 0.61% of zinc, 0.219% of manganese, 0.0621% of silicon, 0.0020% of iron, 0.0039% of copper, 0.0005% of nickel, 0.0007% of beryllium, and the balance of magnesium.
8. The method for manufacturing a display housing for a magnesium alloy vehicle as set forth in claim 4, wherein: the magnesium alloy material in the step a comprises, by mass, 9.13% of aluminum, 0.6% of zinc, 0.185% of manganese, 0.0525% of silicon, 0.0012% of iron, 0.0019% of copper, 0.0007% of nickel, 0.0007% of beryllium and the balance of magnesium.
9. The method for manufacturing a display housing for a magnesium alloy vehicle as set forth in claim 4, wherein: the magnesium alloy material in the step a comprises, by mass, 9.09% of aluminum, 0.58% of zinc, 0.182% of manganese, 0.0594% of silicon, 0.0013% of iron, 0.0017% of copper, 0.0005% of nickel, 0.0009% of beryllium and the balance of magnesium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111238301.4A CN113891598A (en) | 2021-10-25 | 2021-10-25 | Magnesium alloy display shell for vehicle and manufacturing method thereof |
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| CN202111238301.4A CN113891598A (en) | 2021-10-25 | 2021-10-25 | Magnesium alloy display shell for vehicle and manufacturing method thereof |
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| WO2017020645A1 (en) * | 2015-07-31 | 2017-02-09 | 广东欧珀移动通信有限公司 | Electronic device, die-casting aluminium alloy, and preparation method for die-casting aluminium alloy |
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| CN112589396A (en) * | 2020-12-23 | 2021-04-02 | 宁波勋辉电器有限公司 | Manufacturing method of magnesium alloy display screen back plate for vehicle |
| CN215991587U (en) * | 2021-10-25 | 2022-03-08 | 宁波勋辉电器有限公司 | Magnesium alloy display casing for vehicle |
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2021
- 2021-10-25 CN CN202111238301.4A patent/CN113891598A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060598A (en) * | 2006-04-18 | 2007-10-24 | 上海德瑞金属制品有限公司 | Shell for LCD TV, plasma TV and tabletop display etc made of magnesium/aluminum alloy through die casting process |
| CN101413081A (en) * | 2007-10-19 | 2009-04-22 | 青岛海信电器股份有限公司 | Magnesium alloy die casting for electric products |
| WO2017020645A1 (en) * | 2015-07-31 | 2017-02-09 | 广东欧珀移动通信有限公司 | Electronic device, die-casting aluminium alloy, and preparation method for die-casting aluminium alloy |
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| CN112589396A (en) * | 2020-12-23 | 2021-04-02 | 宁波勋辉电器有限公司 | Manufacturing method of magnesium alloy display screen back plate for vehicle |
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