CN116441493A - Manufacturing method of automobile engine bracket - Google Patents
Manufacturing method of automobile engine bracket Download PDFInfo
- Publication number
- CN116441493A CN116441493A CN202310442550.8A CN202310442550A CN116441493A CN 116441493 A CN116441493 A CN 116441493A CN 202310442550 A CN202310442550 A CN 202310442550A CN 116441493 A CN116441493 A CN 116441493A
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- CN
- China
- Prior art keywords
- bracket
- molded
- treatment
- pouring
- manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000009713 electroplating Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005498 polishing Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims description 18
- 230000000171 quenching effect Effects 0.000 claims description 16
- 230000032683 aging Effects 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 7
- 238000004381 surface treatment Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005242 forging Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
Abstract
The invention relates to a manufacturing method of an automobile engine bracket, which comprises the following steps: preparing a matched casting mold according to the shape and the structure of an automobile engine bracket; preparing pouring alloy liquid; fixing the die on pouring equipment and preheating; closing the mold, pouring alloy liquid into the mold, and then cooling; demolding and taking out the molded bracket after pouring; carrying out heat treatment on the molded bracket; hole site detection and hole filling treatment are carried out; polishing the surface of the molded bracket; electroplating the surface of the molded bracket; and detecting the performance parameters of the molding bracket. According to the invention, casting molding is adopted, and the casting is subjected to heat treatment, hole repairing treatment, polishing treatment, electroplating treatment and other procedures after molding, so that the bracket is convenient and quick to mold, and the production efficiency is improved; the material utilization rate is high, the waste of materials is avoided, and the cost is reduced; and the bracket is subjected to heat treatment and related surface treatment after being molded, so that the performance of the bracket is further improved.
Description
Technical Field
The invention relates to the field of automobile accessory production, in particular to a method for manufacturing an automobile engine bracket.
Background
With the development of economy in China, the domestic demand for automobiles is greatly increased, the production efficiency and the processing quality of automobile product parts are improved, and the automobile product parts become an important factor for the development of the automobile industry. The engine bracket is a connecting part between the engine and the vehicle body, supports the whole engine, and the strength and the dynamic performance of the engine bracket directly influence the safety and the comfort of the running of the vehicle. The lower bracket of the automobile engine has complex shape and higher precision in various requirements.
Conventional automotive engine mounts are formed by die forging using large forging equipment. However, on one hand, the utilization rate of materials is lower due to more stub bars and stub edges remained after die forging, so that the cost of the forged automobile engine bracket is higher, and the production efficiency is low.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a manufacturing method of an automobile engine bracket.
The invention adopts the following technical scheme to realize the aim:
a manufacturing method of an automobile engine bracket comprises the following steps:
step one: preparing a matched casting mold according to the shape and the structure of an automobile engine bracket;
step two: preparing pouring alloy liquid;
step three: fixing the die on pouring equipment and preheating;
step four: closing the mold, pouring alloy liquid into the mold, and then cooling;
step five: demolding and taking out the molded bracket after pouring;
step six: carrying out heat treatment on the molded bracket;
step seven: hole site detection and hole filling treatment are carried out;
step eight: polishing the surface of the molded bracket;
step nine: electroplating the surface of the molded bracket;
step ten: and detecting the performance parameters of the molding bracket.
In particular, the alloy liquid in the second step comprises the following components in parts by weight: 0.47% -0.52%, fe:0.15% -0.20%, cu:0.02%, mn:0.05%, mg:0.45% -0.50%, cr:0.02%, zn:0.02%, ti:0.05% and the balance Al.
In particular, in step three, the preheating temperature is 200 ℃.
In particular, in the sixth step, the heat treatment comprises three steps of annealing treatment, quenching treatment and aging treatment.
Specifically, annealing treatment, heating the molded bracket to 280-300 ℃, preserving heat for 2-3 hours, and then cooling to room temperature along with a furnace.
Particularly, the quenching treatment is to heat the molded bracket to 500-550 ℃, keep the temperature for 2-3 hours, and then quench the molded bracket rapidly into water with the temperature of 60-100 ℃ to quench the molded bracket.
Particularly, aging treatment, namely heating the molded bracket to 175-185 ℃, and preserving heat for 5-24 hours.
The beneficial effects of the invention are as follows: according to the invention, casting molding is adopted, and the casting is subjected to heat treatment, hole repairing treatment, polishing treatment, electroplating treatment and other procedures after molding, so that the bracket is convenient and quick to mold, and the production efficiency is improved; the material utilization rate is high, the waste of materials is avoided, and the cost is reduced; and the bracket is subjected to heat treatment and related surface treatment after being molded, so that the performance of the bracket is further improved.
Detailed Description
The invention is further illustrated by the following examples:
example 1
A manufacturing method of an automobile engine bracket comprises the following steps:
step one: preparing a matched casting mold according to the shape and the structure of an automobile engine bracket;
step two: preparing pouring alloy liquid; the alloy liquid comprises the following components in parts by weight: 0.47%, fe:0.15%, cu:0.02%, mn:0.05%, mg:0.45%, cr:0.02%, zn:0.02%, ti:0.05%, the balance being Al;
step three: fixing the die on pouring equipment and preheating, wherein the preheating temperature is 200 ℃;
step four: closing the mold, pouring alloy liquid into the mold, and then cooling;
step five: demolding and taking out the molded bracket after pouring;
step six: carrying out heat treatment on the molded bracket, wherein the heat treatment comprises three steps of annealing treatment, quenching treatment and aging treatment;
step seven: hole site detection and hole filling treatment are carried out;
step eight: polishing the surface of the molded bracket;
step nine: electroplating the surface of the molded bracket;
step ten: and detecting the performance parameters of the molding bracket.
And (3) annealing treatment, namely heating the molded bracket to 280 ℃, preserving heat for 2 hours, and then cooling to room temperature along with a furnace to enable solid solution to be decomposed slowly, and enabling precipitated second particles to gather, so that the internal stress of the molded bracket is eliminated, and the purposes of stabilizing the size, improving the plasticity, reducing the deformation and warping are achieved.
Quenching, namely heating the molded bracket to 500 ℃, preserving heat for 2 hours to enable soluble phases in the alloy to be fully dissolved, then rapidly quenching the molded bracket into water at 60 ℃, quenching the molded bracket, and enabling the strengthening components to be maximally dissolved in the alloy and fixedly stored to room temperature.
Aging treatment, namely heating the molded bracket to 175 ℃, and preserving heat for 5 hours to further improve the strength of the bracket.
Example 2
A manufacturing method of an automobile engine bracket comprises the following steps:
step one: preparing a matched casting mold according to the shape and the structure of an automobile engine bracket;
step two: preparing pouring alloy liquid; the alloy liquid comprises the following components in parts by weight: 0.52%, fe:0.20%, cu:0.02%, mn:0.05%, mg:0.50%, cr:0.02%, zn:0.02%, ti:0.05%, the balance being Al;
step three: fixing the die on pouring equipment and preheating, wherein the preheating temperature is 200 ℃;
step four: closing the mold, pouring alloy liquid into the mold, and then cooling;
step five: demolding and taking out the molded bracket after pouring;
step six: carrying out heat treatment on the molded bracket, wherein the heat treatment comprises three steps of annealing treatment, quenching treatment and aging treatment;
step seven: hole site detection and hole filling treatment are carried out;
step eight: polishing the surface of the molded bracket;
step nine: electroplating the surface of the molded bracket;
step ten: and detecting the performance parameters of the molding bracket.
And (3) annealing treatment, namely heating the molded bracket to 300 ℃, preserving heat for 3 hours, and cooling to room temperature along with a furnace to enable solid solution to be decomposed slowly, and the precipitated second particles are gathered, so that the internal stress of the molded bracket is eliminated, and the purposes of stabilizing the size, improving the plasticity, reducing the deformation and warping are achieved.
Quenching, namely heating the molded bracket to 550 ℃, preserving heat for 3 hours to enable soluble phases in the alloy to be fully dissolved, then rapidly quenching the molded bracket into water at 100 ℃, quenching the molded bracket, and enabling the strengthening components to be maximally dissolved in the alloy and fixedly stored to room temperature.
Aging treatment, namely heating the molded bracket to 185 ℃, and preserving heat for 24 hours to further improve the strength of the bracket.
Example 3
A manufacturing method of an automobile engine bracket comprises the following steps:
step one: preparing a matched casting mold according to the shape and the structure of an automobile engine bracket;
step two: preparing pouring alloy liquid; the alloy liquid comprises the following components in parts by weight: 0.5%, fe:0.18%, cu:0.02%, mn:0.05%, mg:0.48%, cr:0.02%, zn:0.02%, ti:0.05%, the balance being Al;
step three: fixing the die on pouring equipment and preheating, wherein the preheating temperature is 200 ℃;
step four: closing the mold, pouring alloy liquid into the mold, and then cooling;
step five: demolding and taking out the molded bracket after pouring;
step six: carrying out heat treatment on the molded bracket, wherein the heat treatment comprises three steps of annealing treatment, quenching treatment and aging treatment;
step seven: hole site detection and hole filling treatment are carried out;
step eight: polishing the surface of the molded bracket;
step nine: electroplating the surface of the molded bracket;
step ten: and detecting the performance parameters of the molding bracket.
And (3) annealing treatment, namely heating the molded bracket to 290 ℃, preserving heat for 2.5 hours, and then cooling to room temperature along with a furnace to enable solid solution to be slowly decomposed and precipitated second particles to be gathered, so that the internal stress of the molded bracket is eliminated, and the purposes of stabilizing the size, improving the plasticity, reducing the deformation and warping are achieved.
Quenching, namely heating the molded bracket to 525 ℃, preserving the temperature for 2.5 hours to enable the soluble phase in the alloy to be fully dissolved, then rapidly quenching the molded bracket into water with the temperature of 80 ℃ to enable the molded bracket to be rapidly quenched, and enabling the strengthening component to be maximally dissolved in the alloy and fixedly preserved to room temperature.
Aging treatment, namely heating the molded bracket to 180 ℃, and preserving heat for 15 hours to further improve the strength of the bracket.
According to the invention, casting molding is adopted, and the casting is subjected to heat treatment, hole repairing treatment, polishing treatment, electroplating treatment and other procedures after molding, so that the bracket is convenient and quick to mold, and the production efficiency is improved; the material utilization rate is high, the waste of materials is avoided, and the cost is reduced; and the bracket is subjected to heat treatment and related surface treatment after being molded, so that the performance of the bracket is further improved.
While the invention has been described above by way of example, it will be apparent that the invention is not limited to the above embodiments, but is intended to be within the scope of the invention, as long as various modifications of the method concepts and technical solutions of the invention are adopted, or as long as modifications are directly applicable to other applications without modification.
Claims (7)
1. The manufacturing method of the automobile engine bracket is characterized by comprising the following steps:
step one: preparing a matched casting mold according to the shape and the structure of an automobile engine bracket;
step two: preparing pouring alloy liquid;
step three: fixing the die on pouring equipment and preheating;
step four: closing the mold, pouring alloy liquid into the mold, and then cooling;
step five: demolding and taking out the molded bracket after pouring;
step six: carrying out heat treatment on the molded bracket;
step seven: hole site detection and hole filling treatment are carried out;
step eight: polishing the surface of the molded bracket;
step nine: electroplating the surface of the molded bracket;
step ten: and detecting the performance parameters of the molding bracket.
2. The method for manufacturing an automobile engine bracket according to claim 1, wherein the alloy liquid in the second step comprises the following components in parts by weight: 0.47% -0.52%, fe:0.15% -0.20%, cu:0.02%, mn:0.05%, mg:0.45% -0.50%, cr:0.02%, zn:0.02%, ti:0.05% and the balance Al.
3. The method of manufacturing an automotive engine mount according to claim 1, wherein in the third step, the preheating temperature is 200 ℃.
4. The method according to claim 1, wherein in the sixth step, the heat treatment comprises three steps of annealing treatment, quenching treatment and aging treatment.
5. The method of manufacturing an automotive engine mount according to claim 4, wherein the annealing treatment is performed by heating the molded mount to 280 to 300 ℃, holding the temperature for 2 to 3 hours, and then cooling to room temperature with a furnace.
6. The method for manufacturing an automotive engine mount according to claim 4, wherein the quenching treatment is performed by heating the molded mount with a knife at 500-550 ℃ for 2-3 hours, and then quenching the molded mount rapidly in water at 60-100 ℃.
7. The method for manufacturing an automotive engine mount according to claim 4, wherein the aging treatment is performed by heating the molded mount to 175 to 185 ℃ and keeping the temperature for 5 to 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310442550.8A CN116441493A (en) | 2023-04-24 | 2023-04-24 | Manufacturing method of automobile engine bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310442550.8A CN116441493A (en) | 2023-04-24 | 2023-04-24 | Manufacturing method of automobile engine bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116441493A true CN116441493A (en) | 2023-07-18 |
Family
ID=87129984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310442550.8A Pending CN116441493A (en) | 2023-04-24 | 2023-04-24 | Manufacturing method of automobile engine bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116441493A (en) |
-
2023
- 2023-04-24 CN CN202310442550.8A patent/CN116441493A/en active Pending
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