CN111923301A - Preparation method of novel material for automobile hinge reinforcing plate - Google Patents
Preparation method of novel material for automobile hinge reinforcing plate Download PDFInfo
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- CN111923301A CN111923301A CN202010606890.6A CN202010606890A CN111923301A CN 111923301 A CN111923301 A CN 111923301A CN 202010606890 A CN202010606890 A CN 202010606890A CN 111923301 A CN111923301 A CN 111923301A
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- Prior art keywords
- reinforcing plate
- dimethyl
- poly
- hydrogen
- hinge reinforcing
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Classifications
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- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of a novel material for a vehicle hinge reinforcing plate. Heating metal aluminum in a hydrogen atmosphere until the metal aluminum is melted, pressurizing the metal aluminum, gradually increasing the pressure to 20-25 Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten body containing supersaturated hydrogen, then cooling the molten body along a certain direction to gradually solidify the molten body, heating the molten body to 165-170 ℃ after molding, immersing the molten body in thermoplastic resin, and solidifying the molten body to obtain the novel hinge reinforcing plate material. The new material prepared by the method has higher fatigue life and fatigue strength, can replace a galvanized plate and is used for a hinge reinforcing plate. And in the subsequent welding process, the damage to the zinc coating is not needed to be worried about, the welding efficiency is improved, and the welding cost is reduced.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to a preparation method of a novel material for an automobile hinge reinforcing plate.
Background
The existing automobile market competition is increasingly intensified, the produced automobile models are required to be continuously adaptive to the market trend from the aspects of appearance and practicability, otherwise, the market is difficult to obtain the share of the products, and therefore, new automobile models are all introduced to adapt to the market. And the new vehicle type is required to be designed and developed according to parts of the new vehicle type.
With the continuous development of new car research and development, the front door hinge reinforcing plate is also continuously updated. The front door hinge is one of hinges, so that the front door is convenient to be connected with a vehicle body, and if the automobile hinge is directly installed on the vehicle body during installation, the vehicle door is easy to droop during long-time use, so that the installation effect of the front door hinge is reduced, and great inconvenience is brought to a user.
An important part in the board-like car body structure is strengthened to the qianmen hinge plays important role to the installation intensity in hinge installation region, because the needs of matching relation and structural strength, generally define the high strength board, and the part profile is comparatively complicated, and in the actual development process, the technique and the energy that the hinge reinforcing plate invested are more, and quality control is comparatively difficult with the promotion.
In the past, the front door hinge reinforcing plate is made of a galvanized plate, and the requirement on welding operation is high in order to avoid breaking a galvanized layer in the welding process.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a preparation method of a novel material for a vehicle hinge reinforcing plate. The material is light, wear resistant and long in service life, and can replace the existing galvanized plate.
The technical scheme is as follows: the preparation method of the novel material for the vehicle hinge reinforcing plate is carried out according to the following steps:
heating metal aluminum in a hydrogen atmosphere until the metal aluminum is melted, pressurizing the metal aluminum, gradually increasing the pressure to 20-25 Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten body containing supersaturated hydrogen, then cooling the molten body along a certain direction to gradually solidify the molten body, heating the molten body to 165-170 ℃ after molding, immersing the molten body in thermoplastic resin, and solidifying the molten body to obtain the novel hinge reinforcing plate material.
Specifically, the thermoplastic resin is prepared by oxidizing, coupling and polymerizing 2, 6-disubstituted phenol.
More specifically, the thermoplastic resin is: is poly 2, 6-dimethyl-1, 4-phenylate; the 2, 6-disubstituted phenol is 2, 6-dimethylphenol.
More specifically, the thermoplastic resin is: is poly 2, 6-diethyl-1, 4-phenylene ether; the 2, 6-disubstituted phenol is 2, 6-diethylphenol.
In a further improvement, the thermoplastic resin is: modified poly 2, 6-dimethyl-1, 4-phenylene ether; the modified poly (2, 6-dimethyl-1, 4-phenylene ether) is obtained by blending poly (2, 6-dimethyl-1, 4-phenylene ether) and polystyrene, and the proportion of the poly (2, 6-dimethyl-1, 4-phenylene ether) to the polystyrene is 10: 2 to 5.
For the invention, the selected thermoplastic resin must be perfectly combined with the metal matrix, and the thermoplastic resin has strong adhesion, good tensile resistance and good abrasion resistance after molding.
Specifically, in the step of gradually solidifying, the molten mass undergoes eutectic transformation and is decomposed into a solid phase and a gas phase, supersaturated hydrogen is separated out from the solid phase, and micropores are obtained and are orderly arranged along the solidification direction.
Specifically, in the above step, the above-mentioned direction means that the cold source is placed below the melt, so that the melt is gradually solidified from bottom to top.
Specifically, in the above steps, the immersion is carried out at 165-170 ℃ for 2-6 h.
Has the advantages that: the new material prepared by the method can perfectly replace a galvanized plate and is used for a hinge reinforcing plate. And in the subsequent welding process, the damage to the zinc coating is not needed to be worried about, the welding efficiency is improved, and the welding cost is reduced.
The poly 2, 6-dimethyl-1, 4-phenylate and the modified poly 2, 6-dimethyl-1, 4-phenylate are adopted in the preparation process, and the modified poly 2, 6-dimethyl-1, 4-phenylate has the advantages of strong adhesive force, good tensile resistance, good abrasion resistance and the like.
The new material prepared by the method has higher fatigue life and fatigue strength, and is particularly suitable for the vehicle door hinge reinforcing plate.
Detailed Description
The following examples illustrate the invention in more detail, but the scope of the invention is not limited to the examples.
Example 1
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 660 ℃, melting, pressurizing, gradually increasing the pressure to 20Mpa, dissolving part of hydrogen into liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 30min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, then controlling the temperature to be 165 ℃, immersing the metal matrix into poly (2, 6-dimethyl-1, 4-phenylene ether), immersing the metal matrix into the poly (2, 6-dimethyl-1, 4-phenylene ether) at 165 ℃ for 2h to fully immerse resin into the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material for the hinge reinforcing plate.
Example 2
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 700 ℃, melting, pressurizing, gradually increasing the pressure to 25Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 60min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, then controlling the temperature to be 170 ℃, immersing the metal matrix into poly (2, 6-dimethyl-1, 4-phenylene ether), immersing the metal matrix in the poly (2, 6-dimethyl-1, 4-phenylene ether) at 170 ℃ for 6h to fully immerse resin into the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material for the hinge reinforcing plate.
Example 3
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 680 ℃, melting, pressurizing, gradually increasing the pressure to 25Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 60min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, then controlling the temperature to be 165 ℃, immersing the metal matrix into poly (2, 6-dimethyl-1, 4-phenylene ether), immersing the metal matrix in the poly (2, 6-dimethyl-1, 4-phenylene ether) at 165 ℃ for 5h to fully immerse resin into the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material for the hinge reinforcing plate.
Example 4
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 680 ℃, melting, pressurizing, gradually increasing the pressure to 25Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 60min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, controlling the temperature to be 165 ℃, immersing the metal matrix in polyvinyl chloride, immersing the polyvinyl chloride at 165 ℃ for 5h to fully immerse resin in the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material of the hinge reinforcing plate.
Example 5
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 680 ℃, melting, pressurizing, gradually increasing the pressure to 25Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 60min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, controlling the temperature to be 165 ℃, immersing the metal matrix into polystyrene, immersing the polystyrene in the polystyrene for 5h at 165 ℃, fully immersing resin into the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material of the hinge reinforcing plate.
Example 6
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 680 ℃, melting, pressurizing, gradually increasing the pressure to 25Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 60min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, then controlling the temperature to be 165 ℃, immersing the metal matrix into poly (2, 6-diethyl-1, 4-phenylene ether), immersing for 5h at 165 ℃ to fully immerse resin into the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material of the hinge reinforcing plate.
Example 7
Placing aluminum powder or aluminum ingots into a high-pressure container or a mold, heating in a hydrogen atmosphere, heating to 680 ℃, melting, pressurizing, gradually increasing the pressure to 25Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of the high-pressure container or the mold after 60min, gradually solidifying the molten mass from bottom to top, forming to obtain a metal matrix with orderly arranged micropores, then controlling the temperature to be 165 ℃, immersing the metal matrix into modified poly (2, 6-dimethyl-1, 4-phenylene ether), immersing for 5h at 165 ℃ to fully immerse the resin into the micropores of the metal matrix, naturally cooling, and curing to obtain the novel material of the hinge reinforcing plate. The modified poly (2, 6-dimethyl-1, 4-phenylene ether) is prepared by blending poly (2, 6-dimethyl-1, 4-phenylene ether) and polystyrene, and the ratio of the poly (2, 6-dimethyl-1, 4-phenylene ether) to the polystyrene is 10:4 (mass ratio). After modification, the melt viscosity is lower, the molding is easier, the stress cracking phenomenon is not easy to generate after molding, and the cost is lower.
The new materials obtained in examples 3 to 7 were subjected to mechanical property tests.
From the above results, it can be seen that the new material obtained by the method of the present invention can perfectly replace galvanized sheet. The new materials obtained in the examples 3, 6 and 7 are better than those obtained in the examples 4 and 5.
Subjecting the sample to 105Second, 108The strength retention in the secondary cycle fatigue test is shown in the following table:
| strength Retention Rate (10)5Second) | Strength Retention Rate (10)8Second) | |
| COMPARATIVE EXAMPLE (galvanized sheet) | 7.85 | 405 |
| Example 3 | 92％ | 55％ |
| Example 4 | 77％ | 32％ |
| Example 5 | 76％ | 38％ |
| Example 6 | 89％ | 49％ |
| Example 7 | 95％ | 56％ |
It can be seen that the materials obtained in examples 3 and 7 are superior to those obtained in other examples in fatigue life. The above description is only a preferred embodiment of the present application and is not intended to limit the present application.
Claims (10)
1. The preparation method of the novel material for the hinge reinforcing plate for the vehicle is characterized by comprising the following steps of:
heating metal aluminum in a hydrogen atmosphere until the metal aluminum is melted, pressurizing the metal aluminum, gradually increasing the pressure to 20-25 Mpa, dissolving part of hydrogen in liquid aluminum to obtain a uniform molten body containing supersaturated hydrogen, then cooling the molten body along a certain direction to gradually solidify the molten body, heating the molten body to 165-170 ℃ after molding, immersing the molten body in thermoplastic resin, and solidifying the molten body to obtain the novel hinge reinforcing plate material.
2. The method for preparing a novel material for a vehicle hinge reinforcing plate according to claim 1, wherein the thermoplastic resin is prepared by oxidative coupling polymerization of 2, 6-disubstituted phenol.
3. The method for preparing a new material for a hinge reinforcement plate for a vehicle according to claim 2, wherein the thermoplastic resin is: is poly 2, 6-dimethyl-1, 4-phenylate; the 2, 6-disubstituted phenol is 2, 6-dimethylphenol.
4. The method for preparing a new material for a hinge reinforcement plate for a vehicle according to claim 2, wherein the thermoplastic resin is: is poly 2, 6-diethyl-1, 4-phenylene ether; the 2, 6-disubstituted phenol is 2, 6-diethylphenol.
5. The method for preparing a new material for a hinge reinforcement plate for a vehicle according to claim 1, wherein the thermoplastic resin is: is modified poly 2, 6-dimethyl-1, 4-phenylate; the modified poly (2, 6-dimethyl-1, 4-phenylene ether) is obtained by blending poly (2, 6-dimethyl-1, 4-phenylene ether) and polystyrene, and the proportion of the poly (2, 6-dimethyl-1, 4-phenylene ether) to the polystyrene is 10: 2 to 5.
6. The method for preparing the novel material for the hinge reinforcing plate for the vehicle as claimed in claim 1, wherein the thermoplastic resin has strong adhesion, high tensile resistance after molding and good abrasion resistance.
7. The method for preparing a new material for a hinge reinforcement plate for a vehicle according to claim 1, wherein during the gradual solidification, the molten mass undergoes eutectic transformation and is decomposed into a solid phase and a gas phase, and supersaturated hydrogen gas is separated out from the solid phase to obtain micropores, and the micropores are arranged in order along the solidification direction.
8. The method for preparing a new material for a hinge reinforcing plate for a vehicle as claimed in claim 1, wherein the orientation is such that a cold source is disposed below the melt, so that the melt is gradually solidified from bottom to top.
9. The preparation method of the novel material for the hinge reinforcing plate for the vehicle as claimed in claim 1, wherein the immersion is carried out at a temperature of 165-170 ℃ for 2-6 hours.
10. The method for preparing a new material for a reinforcing plate of a hinge for a vehicle as claimed in claim 1, wherein the aluminum powder or the aluminum ingot is placed in a high pressure vessel or a mold, heating in hydrogen atmosphere to 680 deg.C, melting, pressurizing to 25Mpa, dissolving part of hydrogen in liquid aluminum, obtaining a uniform molten mass containing supersaturated hydrogen, placing a cold source at the bottom of a high-pressure container or a mold after 60min, so that the molten mass is gradually solidified from bottom to top, and after the molten mass is formed, a metal matrix with orderly arranged micropores is obtained, then the temperature is controlled to be 165 ℃, the mixture is immersed into the modified poly 2, 6-dimethyl-1, 4-phenylate, immersing at 165 ℃ for 5 hours to ensure that the resin is fully immersed in the micropores of the metal matrix, then naturally cooling, and curing to obtain the new material of the hinge reinforcing plate; the modified poly-2, 6-dimethyl-1, 4-phenylate is prepared by blending poly-2, 6-dimethyl-1, 4-phenylate and polystyrene, and the ratio of the poly-2, 6-dimethyl-1, 4-phenylate to the polystyrene is 10: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606890.6A CN111923301A (en) | 2020-06-29 | 2020-06-29 | Preparation method of novel material for automobile hinge reinforcing plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606890.6A CN111923301A (en) | 2020-06-29 | 2020-06-29 | Preparation method of novel material for automobile hinge reinforcing plate |
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| CN111923301A true CN111923301A (en) | 2020-11-13 |
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| CN202010606890.6A Pending CN111923301A (en) | 2020-06-29 | 2020-06-29 | Preparation method of novel material for automobile hinge reinforcing plate |
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2020
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| US20050145364A1 (en) * | 2002-02-22 | 2005-07-07 | Hideo Nakajima | Metal porous body manufacturing method |
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| CN107073571A (en) * | 2014-03-27 | 2017-08-18 | 通用电气公司 | With multiple grainiesses for the product that is used in high stress environment |
| CN104018014A (en) * | 2014-05-12 | 2014-09-03 | 昆明理工大学 | Method for electromagnetically degassing aluminum alloy |
| CN107249963A (en) * | 2015-02-27 | 2017-10-13 | 奥托立夫开发公司 | The plug and its casting method of steering wheel |
| CN108641267A (en) * | 2018-05-11 | 2018-10-12 | 东莞市通锦新材料科技有限公司 | Cable material and its preparation method and application |
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Application publication date: 20201113 |