CN111745109A - Novel production process for forging aluminum alloy HUB - Google Patents
Novel production process for forging aluminum alloy HUB Download PDFInfo
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- CN111745109A CN111745109A CN202010659489.9A CN202010659489A CN111745109A CN 111745109 A CN111745109 A CN 111745109A CN 202010659489 A CN202010659489 A CN 202010659489A CN 111745109 A CN111745109 A CN 111745109A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J3/00—Lubricating during forging or pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
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- 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
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- 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
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Abstract
The invention belongs to the technical field of aluminum alloy, and particularly relates to a novel production process for forging aluminum alloy HUB. The production process is realized by the following steps: firstly preparing a graphite base lubricant, then immersing an aluminum bar into the graphite base lubricant, drying, immersing the aluminum bar into the graphite lubricant again, drying, heating to 500 ℃ for 60 minutes, putting the aluminum bar with a graphite coating on the surface into a die cavity, forging to obtain a HUB shape, carrying out heat treatment by adopting a graded solid solution method, and carrying out heat preservation at 170 ℃ for 8 hours after quenching for artificial aging to obtain a forged aluminum alloy HUB blank. The preparation process provided by the invention has high requirements on the HUB strength, and the heating time before forging and pressing is as short as possible to obtain finer grains, so that the graphite coating is prepared on the surface of the aluminum bar, the heat absorption rate of the aluminum bar is improved, the heating time of the aluminum bar is reduced, and the formation of coarse grains is avoided.
Description
Technical Field
The invention belongs to the technical field of aluminum alloy, and particularly relates to a novel production process for forging aluminum alloy HUB.
Background
The HUB is a key component on an automobile axle, and the quality and reliability of the HUB are closely related to the safety of a vehicle. At present, cast iron HUB is used domestically, and some manufacturers also release cast HUB, but the performance can not meet the use requirement far away, and the cast HUB can only stay at the stage of a sample. The aluminum bar preheating time is long before forging and pressing for the ordinary forged aluminum alloy HUB, and thick crystal grains are easily generated, so that the performance of a product is reduced, an oil-based graphite lubricant is adopted in the forging and pressing process, the die cavity is easily attached with impurities, difficult to clean and high in rejection rate, a large amount of smoke and open fire are generated in the production process, the environmental pollution is large, and the production efficiency is low. At present, aluminum alloy wheels are popularized and applied to cars, trucks and passenger cars, and forging aluminum alloy HUB is a future development trend.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a production process of a forged aluminum alloy HUB with high strength and light weight. HUB forging belongs to thin shape flange spare, and the shape is more complicated, and there is a darker through-hole in the center, and two upper and lower cylinder walls of HUB are higher and thin. The wall of one cylinder is provided with a reinforcing rib, so that the cylinder is difficult to form and easy to generate folding defects and has better lubrication.
The technical scheme adopted by the invention for realizing the purpose is as follows: (claims)
1. A novel production process of a forged aluminum alloy HUB is characterized by comprising the following steps:
(1) preparing a graphite lubricant according to a certain proportion, and uniformly stirring for later use to obtain a graphite base lubricant;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, carrying out heat treatment by adopting a graded solid solution method, and carrying out artificial aging at 170 ℃ for 8 hours after quenching to obtain a forged aluminum alloy HUB blank.
2. The novel production process of a forged aluminum alloy HUB as claimed in claim 1, wherein the graphite-based lubricant is composed of the following raw materials in parts by weight: 28-32 parts of graphite powder, 0.8-1.2 parts of p-methoxybenzylamine, 1.5-2.0 parts of sorbitan fatty acid, 0.7-1.0 part of acetate starch, 0.15-0.78 part of polyethylene glycol 2000.12 and 0.13-0.18 part of tristearin.
3. A novel forged aluminum alloy HUB production process according to claim 1 or 2, wherein said graphite lubricant is composed of the following raw materials in parts by weight: 10-15 parts of graphite powder, 0.5-0.8 part of animal glue, 0.15-0.18 part of modified diatomite, 0.1-0.15 part of maleic anhydride and 2-3 parts of glycerol.
4. The novel production process of a forged aluminum alloy HUB according to claim 3, wherein the modified diatomite is prepared by the following method: adding sodium alginate, aluminum hydroxide and span80 into diatomaceous earth, mixing, adding water, heating to 55-60 deg.C, performing ultrasonic treatment for 30min, stirring for 50min, and cooling to room temperature.
5. The novel production process of the forged aluminum alloy HUB according to claim 4, wherein the mass ratio of the diatomite to the sodium alginate to the aluminum hydroxide to the span80 is 1: 0.02: 0.012: 5; the volume ratio of the span80 to the water is 1: 6.
6. a novel process for producing a forged aluminum alloy HUB according to claim 4 or 5, wherein the stirring speed is 500 r/min.
7. A novel HUB production process of forged aluminum alloy as claimed in claim 1, wherein said fractional solid solution method is two-stage fractional solid solution, first raising temperature to 400 ℃ and keeping temperature for 40min, then raising temperature to 525 ℃ and keeping temperature for 10 h.
In the forging process, the heat absorption rate of the aluminum bar is smaller than 0.09-0.13, and the absorption rate is improved to 0.8-0.9, about 7.8 times by coating the graphite coating. The graphite coating improves the heat absorption efficiency of the aluminum bar, shortens the heating time of the aluminum bar and simultaneously avoids the growth of crystal grains.
The invention has the beneficial effects that:
(1) the preparation process provided by the invention has high requirements on the HUB strength, and the heating time before forging and pressing is as short as possible to obtain finer grains, so that the graphite coating is prepared on the surface of the aluminum bar, the heat absorption rate of the aluminum bar is improved, the heating time of the aluminum bar is reduced, and the formation of coarse grains is avoided.
(2) The invention has good coating uniformity, excellent lubricating effect, no oil smoke, open fire, full filling, no aluminum adhesion, easy demoulding, no adhesion of the produced solid graphite to a mould cavity and easy cleaning through the special double-layer graphite coating.
Drawings
FIG. 1 is a flow chart of a process for forging an aluminum alloy HUB.
FIG. 2 is a schematic diagram of aluminum bar temperature measurement.
Fig. 3 is a graded solid solution curve.
Fig. 4 is a field view of a work environment in which oil-based graphite is sprayed.
FIG. 5 is a gold phase diagram of the aluminum alloy HUB100X prepared in example 1 of the present invention.
FIG. 6 is a gold phase diagram of the aluminum alloy HUB100X prepared in comparative example 1.
Detailed Description
The technical solution of the present invention is further explained and illustrated by the following specific embodiments.
The process flow chart of the forging aluminum alloy HUB of the invention is shown in figure 1.
The modified diatomite used in the invention is prepared by the following method: adding sodium alginate, aluminum hydroxide and span80 into diatomite, and mixing, wherein the mass ratio of the diatomite to the sodium alginate to the aluminum hydroxide to the span80 is 1: 0.02: 0.012: 5; the volume ratio of the span80 to the water is 1: 6; then adding water, heating to 55-60 deg.C, performing ultrasonic treatment for 30min, stirring at 500r/min for 50min, and cooling to room temperature.
Example 1
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(1) preparing a graphite lubricant, and uniformly stirring for later use to obtain a graphite base lubricant;
the graphite base layer lubricant is prepared from the following raw materials in parts by weight: 28 parts of graphite powder, 1.0 part of p-methoxybenzylamine, 1.5 parts of sorbitan fatty acid, 1.0 part of acetate starch, 2000.12 parts of polyethylene glycol and 0.15 part of glyceryl tristearate;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
the graphite lubricant is prepared from the following raw materials in parts by weight: 12 parts of graphite powder, 0.8 part of animal glue, 0.16 part of modified diatomite, 0.12 part of maleic anhydride and 3 parts of glycerol;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (2) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and carrying out artificial aging after the aluminum bar is quenched at 170 ℃ for 8 h, thereby obtaining a forged aluminum alloy HUB blank, wherein a graded solid solution curve diagram is shown in figure 3.
Example 2
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(1) preparing a graphite lubricant, and uniformly stirring for later use to obtain a graphite base lubricant;
the graphite base layer lubricant is prepared from the following raw materials in parts by weight: 30 parts of graphite powder, 1.2 parts of p-methoxybenzylamine, 1.8 parts of sorbitan fatty acid, 0.8 part of acetate starch, 2000.15 parts of polyethylene glycol and 0.15 part of glyceryl tristearate;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
the graphite lubricant is prepared from the following raw materials in parts by weight: 15 parts of graphite powder, 0.8 part of animal glue, 0.15 part of modified diatomite, 0.15 part of maleic anhydride and 3 parts of glycerol;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and preserving heat for 8 h at 170 ℃ after quenching to perform artificial aging to obtain a forged aluminum alloy HUB blank.
Example 3
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(1) preparing a graphite lubricant, and uniformly stirring for later use to obtain a graphite base lubricant;
the graphite base layer lubricant is prepared from the following raw materials in parts by weight: 32 parts of graphite powder, 0.8 part of p-methoxybenzylamine, 2.0 parts of sorbitan fatty acid, 0.7 part of acetate starch, 2000.15 parts of polyethylene glycol and 0.13 part of glyceryl tristearate;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
the graphite lubricant is prepared from the following raw materials in parts by weight: 10 parts of graphite powder, 0.5 part of animal glue, 0.18 part of modified diatomite, 0.12 part of maleic anhydride and 3 parts of glycerol;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and preserving heat for 8 h at 170 ℃ after quenching to perform artificial aging to obtain a forged aluminum alloy HUB blank.
Comparative example 1
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(1) preparing a graphite lubricant, and uniformly stirring for later use to obtain a graphite base lubricant;
the graphite-based lubricant was the same as in example 1;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(4) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and preserving heat for 8 h at 170 ℃ after quenching to perform artificial aging to obtain a forged aluminum alloy HUB blank.
Comparative example 2
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(2) sawing an aluminum bar into a required length, immersing the aluminum bar into a prepared graphite lubricant, and then drying the aluminum bar for 30min at 100 ℃ to obtain a dried aluminum bar with a graphite coating;
the graphite lubricant is prepared from the following raw materials in parts by weight: 12 parts of graphite powder, 0.8 part of animal glue, 0.16 part of modified diatomite, 0.12 part of maleic anhydride and 3 parts of glycerol;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and preserving heat for 8 h at 170 ℃ after quenching to perform artificial aging to obtain a forged aluminum alloy HUB blank.
Comparative example 3
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(1) preparing a graphite lubricant, and uniformly stirring for later use to obtain a graphite base lubricant;
the graphite base layer lubricant is prepared from the following raw materials in parts by weight: 28 parts of graphite powder, 1.0 part of p-methoxybenzylamine, 1.5 parts of sorbitan fatty acid, 2000.12 parts of polyethylene glycol and 0.15 part of glyceryl tristearate;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
the graphite lubricant is prepared from the following raw materials in parts by weight: 12 parts of graphite powder, 0.16 part of modified diatomite, 0.12 part of maleic anhydride and 3 parts of glycerol;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and preserving heat for 8 h at 170 ℃ after quenching to perform artificial aging to obtain a forged aluminum alloy HUB blank.
Comparative example 4
A novel production process of a forged aluminum alloy HUB comprises the following steps:
(1) preparing a graphite lubricant, and uniformly stirring for later use to obtain a graphite base lubricant;
the graphite base layer lubricant is prepared from the following raw materials in parts by weight: 28 parts of graphite powder, 1.5 parts of sorbitan fatty acid, 1.0 part of acetate starch, 2000.12 parts of polyethylene glycol and 0.15 part of glyceryl tristearate;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
the graphite lubricant is prepared from the following raw materials in parts by weight: 12 parts of graphite powder, 0.8 part of animal glue, 0.16 part of modified diatomite and 3 parts of glycerol;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, heating to 400 ℃, preserving heat for 40min, then heating to 525 ℃, preserving heat for 10h, and preserving heat for 8 h at 170 ℃ after quenching to perform artificial aging to obtain a forged aluminum alloy HUB blank.
Effects of the embodiment
(1) The central temperature of the aluminum bar coated with the graphite layer prepared in example 1 of the present invention was measured by a thermocouple, and as shown in fig. 2, the aluminum bar was drilled, and the 10-inch aluminum bar was heated to 500 ℃ for 60 minutes for the aluminum bar not coated with the graphite layer and 40 minutes for the aluminum bar coated with the graphite layer. The heating efficiency of the graphite-coated aluminum bar can be improved by 30 percent. The aluminum bar which is not sprayed with graphite needs to be sprayed with oil-based graphite in the forging process, and the graphite is solid and can not be adsorbed on the surface of the hot aluminum bar, so that the graphite and oil are mixed and sprayed on the surfaces of the die and the aluminum bar to achieve the purpose of lubrication. The oil-based graphite spraying forging process generates large smoke and even open fire, the environment is greatly influenced, impurities in the mineral oil are remained on the surface of a die cavity, and the impurities are easily adhered to the surface of a product, lack of materials and are not full in mold filling, as shown in figure 4.
And (3) putting the aluminum bar with the graphite coating on the surface into a forging die cavity, and forging to obtain the HUB shape. The graphite coating provided by the invention not only improves the heat absorption efficiency of the aluminum bar, but also plays a role of a lubricant in the forging process. The graphite coating aluminum rod can be adsorbed on the surface of the aluminum rod in a cold state by adopting water-based graphite, a specially-assigned person is not required to spray oil-based graphite in the forging process, and the method is environment-friendly, and does not generate smoke and open fire. Greatly saves labor and improves production efficiency. When the water-based graphite is sprayed on a workpiece or a mold, water is evaporated immediately, and graphite particles cannot be adsorbed on the workpiece or the mold. After quenching, the temperature is kept at 170 ℃ for 8 hours for artificial aging, a forged aluminum alloy HUB blank with fine crystal grains and high strength can be obtained, the size of the crystal grains is about 8 mu m (figure 5), the tensile strength can reach 380Mpa, and the performance requirements of a card and a passenger car can be met. FIG. 6 is a gold phase diagram of a forged aluminum alloy produced by the oil-based graphite spraying process, with a grain size of about 18 μm. Tensile strength of 300-340 MPa.
(2) The aluminum alloys prepared in examples 1-3 and comparative examples 1-4 were tested for critical load of graphite layer with a maximum load of 50N and a loading rate of 10N/min using a scratch adhesion tester, and the roughness of graphite layer was tested using an atomic force microscope while the hardness of graphite layer was tested using a vickers microhardness tester under test conditions of 0.25N load and 15 seconds of pressure hold, while a control was set, the specific process in the control was substantially the same as in example 1 except that diatomaceous earth was used without modification, and the specific results are shown in table 1.
TABLE 1
| Critical load (N) | Roughness (nm) | Hardness (HV) | |
| Example 1 | 14 | 21.59 | 129 |
| Example 2 | 12 | 23.47 | 129 |
| Example 3 | 14 | 22.16 | 127 |
| Comparative example 1 | 10 | 25.98 | 116 |
| Comparative example 2 | 7 | 26.41 | 109 |
| Comparative example 3 | 8 | 24.97 | 112 |
| Comparative example 4 | 7 | 25.34 | 106 |
| Control group | 7 | 24.82 | 117 |
Claims (7)
1. A novel production process of a forged aluminum alloy HUB is characterized by comprising the following steps:
(1) preparing a graphite lubricant according to a certain proportion, and uniformly stirring for later use to obtain a graphite base lubricant;
(2) sawing an aluminum bar into a required length, and immersing the aluminum bar into the prepared graphite base layer lubricant for 30S;
(3) drying the aluminum bar with the graphite coating at 80 ℃ for 30 min; taking out, soaking in prepared graphite lubricant again, and drying at 100 deg.C for 30min to obtain dried aluminum bar with graphite coating;
(4) heating the graphite-coated aluminum bar to 500 ℃ for 60 minutes
(5) And (3) putting the aluminum bar with the graphite coating on the surface into a die cavity, forging the aluminum bar into a HUB shape, carrying out heat treatment by adopting a graded solid solution method, and carrying out artificial aging at 170 ℃ for 8 hours after quenching to obtain a forged aluminum alloy HUB blank.
2. The novel production process of a forged aluminum alloy HUB as claimed in claim 1, wherein the graphite-based lubricant is composed of the following raw materials in parts by weight: 28-32 parts of graphite powder, 0.8-1.2 parts of p-methoxybenzylamine, 1.5-2.0 parts of sorbitan fatty acid, 0.7-1.0 part of acetate starch, 0.15-0.78 part of polyethylene glycol 2000.12 and 0.13-0.18 part of tristearin.
3. A novel forged aluminum alloy HUB production process according to claim 1 or 2, wherein said graphite lubricant is composed of the following raw materials in parts by weight: 10-15 parts of graphite powder, 0.5-0.8 part of animal glue, 0.15-0.18 part of modified diatomite, 0.1-0.15 part of maleic anhydride and 2-3 parts of glycerol.
4. The novel production process of a forged aluminum alloy HUB according to claim 3, wherein the modified diatomite is prepared by the following method: adding sodium alginate, aluminum hydroxide and span80 into diatomaceous earth, mixing, adding water, heating to 55-60 deg.C, performing ultrasonic treatment for 30min, stirring for 50min, and cooling to room temperature.
5. The novel production process of the forged aluminum alloy HUB according to claim 4, wherein the mass ratio of the diatomite to the sodium alginate to the aluminum hydroxide to the span80 is 1: 0.02: 0.012: 5; the volume ratio of the span80 to the water is 1: 6.
6. a novel process for producing a forged aluminum alloy HUB according to claim 4 or 5, wherein the stirring speed is 500 r/min.
7. A novel HUB production process of forged aluminum alloy as claimed in claim 1, wherein said fractional solid solution method is two-stage fractional solid solution, first raising temperature to 400 ℃ and keeping temperature for 40min, then raising temperature to 525 ℃ and keeping temperature for 10 h.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300444A (en) * | 1998-04-22 | 1999-11-02 | Nippon Steel Corp | Half-melted forging method |
| CN104015011A (en) * | 2014-06-13 | 2014-09-03 | 浙江巨科实业有限公司 | Manufacturing method of Al-Mg-Si alloy hub |
| CN104629888A (en) * | 2013-11-07 | 2015-05-20 | 青岛威腾石墨有限公司 | Graphite lubricant with high performance-price ratio |
| CN107186159A (en) * | 2017-06-20 | 2017-09-22 | 江苏威鹰机械有限公司 | The quiet disk manufacturing process of oil-free vacuum pump of eddy type aluminium alloy |
| CN111020425A (en) * | 2019-12-25 | 2020-04-17 | 辽宁忠旺集团有限公司 | 2-series aluminum alloy heat treatment process |
-
2020
- 2020-07-10 CN CN202010659489.9A patent/CN111745109A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300444A (en) * | 1998-04-22 | 1999-11-02 | Nippon Steel Corp | Half-melted forging method |
| CN104629888A (en) * | 2013-11-07 | 2015-05-20 | 青岛威腾石墨有限公司 | Graphite lubricant with high performance-price ratio |
| CN104015011A (en) * | 2014-06-13 | 2014-09-03 | 浙江巨科实业有限公司 | Manufacturing method of Al-Mg-Si alloy hub |
| CN107186159A (en) * | 2017-06-20 | 2017-09-22 | 江苏威鹰机械有限公司 | The quiet disk manufacturing process of oil-free vacuum pump of eddy type aluminium alloy |
| CN111020425A (en) * | 2019-12-25 | 2020-04-17 | 辽宁忠旺集团有限公司 | 2-series aluminum alloy heat treatment process |
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