CN111391590A - Aluminum alloy I-shaped thrust rod and machining method thereof - Google Patents
Aluminum alloy I-shaped thrust rod and machining method thereof Download PDFInfo
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- CN111391590A CN111391590A CN202010311087.XA CN202010311087A CN111391590A CN 111391590 A CN111391590 A CN 111391590A CN 202010311087 A CN202010311087 A CN 202010311087A CN 111391590 A CN111391590 A CN 111391590A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
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- 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
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- 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
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- 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
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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
- C22F1/043—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 with silicon as the next major constituent
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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
- C22F1/047—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 with magnesium as the next major constituent
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- 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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Pivots And Pivotal Connections (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to the technical field of automobile parts, in particular to an aluminum alloy I-shaped thrust rod, which comprises: the straight pushing device comprises a straight pushing mechanism, a straight pushing mechanism and a straight pushing mechanism, wherein the straight pushing mechanism comprises two straight pushing end heads with parallel end surfaces and a straight pushing connecting rod for connecting the two straight pushing end heads, and the two end surfaces of the straight pushing connecting rod and the straight pushing end heads are positioned on the same horizontal plane; the oblique pushing device comprises an oblique pushing mechanism, an oblique pushing mechanism and a connecting mechanism, wherein the oblique pushing mechanism comprises two oblique pushing end heads with parallel end faces and an oblique pushing connecting rod for connecting the two oblique pushing end heads, and a certain angle is formed between the oblique pushing connecting rod and the two end faces of the oblique pushing end heads; the cross sections of the straight push connecting rod and the inclined push connecting rod are both in I-shaped structures; the straight pushing end and the inclined pushing end are respectively arranged at two ends of the straight pushing connecting rod and the inclined pushing connecting rod and are integrally formed. By adopting the aluminum alloy I-shaped thrust rod and the machining method thereof, the problems that the I-shaped thrust rod in the prior art is complex in production process and heavy in weight are solved.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an aluminum alloy I-shaped thrust rod and a machining method thereof.
Background
The I-type thrust rod is a suspension component on a heavy-duty automobile, which is used for connecting an axle and a frame and is used for transmitting traction force and braking force in the running process of the automobile and playing a role in blocking mutual play and position recovery between the axle and the frame when the automobile turns, pits and the like; in addition, the method has important effects on reducing the vibration and noise of the whole vehicle and reducing the impact damage of key parts such as a bridge, a frame beam and the like.
The type i thrust rod has the following two main structures: the first is machining after forging the end, the pipe body is connected with two ends, and the pipe body and the end are connected by hot riveting or friction welding, the technological process of the structure is longer, and the control requirements on the hot riveting and friction welding processes are strict; the second is solid forged from carbon steel, but heavier in weight than the first.
In view of this, it is necessary to improve a method for machining an I-type thrust rod in the prior art to solve the problems of complicated production process and heavy weight of the I-type thrust rod.
Disclosure of Invention
The invention aims to solve the problems of complex production process and heavy weight of the I-type thrust rod in the prior art, and provides an aluminum alloy I-type thrust rod and a machining method thereof.
The technical scheme for realizing the purpose of the invention is as follows:
an aluminum alloy type I thrust rod comprising:
the straight pushing device comprises a straight pushing mechanism, a straight pushing mechanism and a straight pushing mechanism, wherein the straight pushing mechanism comprises two straight pushing end heads with parallel end surfaces and a straight pushing connecting rod for connecting the two straight pushing end heads, and the two end surfaces of the straight pushing connecting rod and the straight pushing end heads are positioned on the same horizontal plane;
the oblique pushing device comprises an oblique pushing mechanism, an oblique pushing mechanism and a connecting mechanism, wherein the oblique pushing mechanism comprises two oblique pushing end heads with parallel end faces and an oblique pushing connecting rod for connecting the two oblique pushing end heads, and a certain angle is formed between the oblique pushing connecting rod and the two end faces of the oblique pushing end heads;
the cross sections of the straight push connecting rod and the inclined push connecting rod are both in I-shaped structures;
the straight pushing end and the inclined pushing end are respectively arranged at two ends of the straight pushing connecting rod and the inclined pushing connecting rod and are integrally formed.
Further, the direct pushing and the oblique pushing are both integrally forged by aluminum alloy, and the aluminum alloy preferably comprises the following components in percentage: si: 1.2% -1.7%, Fe: 0-0.2%, Cu: 0.4-0.5%, Mn: 0.3% -0.6%, Mg: 1.1-1.6%, Cr: 0.2-0.35%, Zn: 0-0.5%, Ti: 0-0.1% and the balance of Al; or an aluminum alloy with aluminum as a main component and other alloying elements added.
Furthermore, the straight pushing end and the inclined pushing end are both cylindrical structures, through holes are machined along the central axis of the cylindrical structures, the diameter of each through hole is between phi 50 and phi 120, and the roughness of each through hole is Ra3.2.
Further, be provided with tang face and retaining ring mounting groove on the through-hole, the aperture of tang face department is less than the through-hole aperture, the aperture of retaining ring mounting groove is greater than the through-hole aperture, just tang face and retaining ring mounting groove all are located the both ends of through-hole.
Further, the device also comprises a direct-push spherical hinge, a direct-push check ring, an oblique-push spherical hinge and an oblique-push check ring, wherein the direct-push spherical hinge and the oblique-push spherical hinge are respectively installed in the direct-push through hole and the oblique-push through hole and are respectively fixed through the direct-push check ring and the oblique-push check ring.
The ball-twisting is generally divided into three types of vulcanization bonding type, assembly pressing type and bonding pressing type, and rubber or polyurethane is arranged in the ball-twisting to play a role in buffering and shock absorption. The retainer ring prevents the ball hinge from axially moving in the inner hole of the end head.
A method for processing an aluminum alloy I-shaped thrust rod comprises the following steps:
forging an aluminum alloy blank by using forging equipment to obtain an I-shaped thrust rod forged aluminum blank, then trimming and removing materials, and performing corresponding heat treatment to obtain an I-shaped thrust rod semi-finished product;
machining the end heads, namely machining the two end heads on a vertical numerical control lathe to obtain through holes required for assembling the spherical hinges and the check rings;
step three, surface treatment, namely performing surface treatment on the machined I-shaped thrust rod semi-finished product;
and step four, assembling, printing a plastic mark, and assembling a spherical hinge and a retainer ring to complete the production of the I-shaped thrust rod assembly.
Further, in the first step, the heat treatment comprises solution treatment and artificial aging, wherein the temperature of the solution treatment is 550 +/-10 ℃, the heat preservation time is 2 hours, the quenching transfer time of water quenching is less than 15 seconds, and the water temperature is 25-35 ℃; keeping the artificial aging temperature at 180 ℃, keeping the temperature for 10 hours, and cooling in air.
Further, in the third step, the surface treatment includes: degreasing, phosphorizing, electrophoresing and spraying finish paint, wherein in the surface treatment process, the baking temperature is not more than 200 ℃, the thickness of a paint film is 20-100 mu m, and the adhesive force of the paint film is not more than grade 1.
After surface treatment, the paint has certain weather resistance, salt spray resistance and oil resistance.
Compared with the prior art, the invention has the beneficial effects that: the integral forging is carried out by utilizing the aluminum alloy material, the production process of the I-shaped thrust rod is simplified, the weight of the I-shaped thrust rod is greatly reduced, the I-shaped thrust rod achieves the effects of light weight, simple structure and shortened production process flow, and the production efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a direct-push structure according to the present invention;
FIG. 2 is a schematic diagram of a direct-push top structure of the present invention;
FIG. 3 is a schematic diagram of the oblique pushing structure of the present invention;
FIG. 4 is a schematic diagram of a tilted top view structure of the present invention;
FIG. 5 is a schematic view of the internal structure of the through hole of the present invention;
wherein, 1, directly pushing the spherical hinge; 2. a retainer ring is pushed directly; 3. a straight push connecting rod; 4. obliquely pushing the spherical hinge; 5. obliquely pushing the check ring; 6. obliquely pushing the connecting rod; 7. directly pushing the end; 8. obliquely pushing the end; 9. a retainer ring mounting groove; 10. a spigot surface.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
referring to fig. 2 and 4, an aluminum alloy I-type thrust rod includes: the straight pushing comprises two straight pushing end heads 7 with parallel end faces and a straight pushing connecting rod 3 connecting the two straight pushing end heads 7, and the two end faces of the straight pushing connecting rod 3 and the straight pushing end heads 7 are positioned on the same horizontal plane; the oblique pushing device comprises an oblique pushing end 8 and an oblique pushing connecting rod 6, wherein the two end faces of the oblique pushing end 8 are parallel, the oblique pushing connecting rod 6 is connected with the two oblique pushing end 8, and a certain angle is formed between the oblique pushing connecting rod 6 and the two end faces of the oblique pushing end 8; the cross sections of the straight push connecting rod 3 and the inclined push connecting rod 6 are both in I-shaped structures; the straight pushing end 7 and the inclined pushing end 8 are respectively arranged at two ends of the straight pushing connecting rod 3 and the inclined pushing connecting rod 6 and are integrally formed.
A method for processing an aluminum alloy I-shaped thrust rod comprises the following steps:
forging an aluminum alloy blank by using forging equipment to obtain an I-shaped thrust rod forged aluminum blank, then trimming and removing materials, and performing corresponding heat treatment to obtain an I-shaped thrust rod semi-finished product;
machining the end heads, namely machining the two end heads on a vertical numerical control lathe to obtain through holes required for assembling the spherical hinges and the check rings;
step three, surface treatment, namely performing surface treatment on the machined I-shaped thrust rod semi-finished product;
and step four, assembling, printing a plastic mark, and assembling a spherical hinge and a retainer ring to complete the production of the I-shaped thrust rod assembly.
Compared with the prior art, the scheme has the advantages that the aluminum alloy material is utilized for integral forging, the production process of the I-shaped thrust rod is simplified, the weight of the I-shaped thrust rod is greatly reduced, the I-shaped thrust rod achieves the effects of light weight, simple structure and shortened production process flow, and the production efficiency is greatly improved.
Example 2
Compared with the example 1, the aluminum alloy I-shaped thrust rod and the processing method thereof of the embodiment further adopt the aluminum alloy integral forging for both the direct pushing and the oblique pushing, and the aluminum alloy preferably comprises the following components in percentage: si: 1.2% -1.7%, Fe: 0-0.2%, Cu: 0.4-0.5%, Mn: 0.3% -0.6%, Mg: 1.1-1.6%, Cr: 0.2-0.35%, Zn: 0-0.5%, Ti: 0-0.1% and the balance of Al.
The components of the aluminum alloy and the proportion among the components are optimized, the performance of the aluminum alloy is effectively improved, the heat resistance, the wear resistance, the hardness and the like of the material are guaranteed during forging, and a good using effect is achieved, or the aluminum alloy is mainly composed of aluminum and is added with other alloy elements.
As shown in fig. 5, the straight pushing end 7 and the inclined pushing end 8 are both cylindrical structures, and a through hole is processed along the central axis of the cylindrical structures, the diameter of the through hole is between phi 50 and phi 120, and the roughness of the hole is ra 3.2. The direct-push spherical hinge 1 and the oblique-push spherical hinge 4 are respectively arranged in the direct-push through hole and the oblique-push through hole and are respectively fixed through the direct-push check ring 2 and the oblique-push check ring 5.
Example 3
With reference to fig. 1 and 3, compared with embodiment 2, the aluminum alloy I-shaped thrust rod and the processing method thereof of this embodiment are further provided with a stop surface 10 and a retaining ring installation groove 9 on the through hole, where the aperture of the stop surface 10 is smaller than that of the through hole, the aperture of the retaining ring installation groove 9 is larger than that of the through hole, and both the stop surface 10 and the retaining ring installation groove 9 are located at both ends of the through hole. The device is characterized by further comprising a direct-push spherical hinge 1, a direct-push check ring 2, an oblique-push spherical hinge 4 and an oblique-push check ring 5, wherein the direct-push spherical hinge 1 and the oblique-push spherical hinge 4 are respectively installed in the direct-push through hole and the oblique-push through hole and are respectively fixed through the direct-push check ring 2 and the oblique-push check ring 5.
The ball hinge generally has three structures of a vulcanization bonding type, an assembly press-in type and a bonding press-in type, rubber or polyurethane is arranged in the ball hinge, the ball hinge has the function of buffering and damping, and the retainer ring can be arranged to well prevent the ball hinge from axially moving in the through hole of the end head.
As a further improvement of the scheme, in the first step, the heat treatment comprises solution treatment and artificial aging, the temperature of the solution treatment is 550 +/-10 ℃, the heat preservation time is 2 hours, the quenching transfer time of water quenching is less than 15 seconds, and the water temperature is 25-35 ℃; keeping the artificial aging temperature at 180 ℃, keeping the temperature for 10 hours, and cooling in air.
In the third step, the surface treatment comprises the following steps: degreasing, phosphorizing, electrophoresing and spraying finish paint, wherein in the surface treatment process, the baking temperature is not more than 200 ℃, the thickness of a paint film is 20-100 mu m, and the adhesive force of the paint film is not more than grade 1.
The I-shaped thrust rod after surface treatment controls parameters in the process, so that the I-shaped thrust rod has certain weather resistance, salt mist resistance and oil resistance, and has better service performance,
the above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. An aluminum alloy I-shaped thrust rod, comprising:
the straight push comprises two straight push end heads (7) with parallel end faces and a straight push connecting rod (3) connected with the two straight push end heads (7), and the two end faces of the straight push connecting rod (3) and the straight push end heads (7) are positioned on the same horizontal plane;
the oblique pushing device comprises an oblique pushing end (8) with two parallel end faces and an oblique pushing connecting rod (6) for connecting the two oblique pushing end (8), wherein a certain angle is formed between the oblique pushing connecting rod (6) and two ends of the oblique pushing end (8);
the cross sections of the straight push connecting rod (3) and the inclined push connecting rod (6) are both in I-shaped structures;
the straight pushing end (7) and the inclined pushing end (8) are respectively arranged at two ends of the straight pushing connecting rod (3) and the inclined pushing connecting rod (6) and are integrally formed.
2. The aluminum alloy I-shaped thrust rod as claimed in claim 1, wherein the straight thrust and the oblique thrust are both integrally forged by aluminum alloy, and the aluminum alloy preferably comprises the following components in percentage: si: 1.2% -1.7%, Fe: 0-0.2%, Cu: 0.4-0.5%, Mn: 0.3% -0.6%, Mg: 1.1-1.6%, Cr: 0.2-0.35%, Zn: 0-0.5%, Ti: 0-0.1% and the balance of Al.
3. The aluminum alloy I-shaped thrust rod as recited in claim 1, wherein the straight thrust end (7) and the inclined thrust end (8) are both cylindrical structures, and a through hole is processed along a central axis of the cylindrical structures, the diameter of the through hole is between phi 50 and phi 120, and the roughness of the through hole is Ra3.2.
4. The aluminum alloy I-shaped thrust rod as recited in claim 3, wherein the through hole is provided with a stop surface (10) and a retainer ring mounting groove (9), the aperture of the stop surface (10) is smaller than that of the through hole, the aperture of the retainer ring mounting groove (9) is larger than that of the through hole, and the stop surface (10) and the retainer ring mounting groove (9) are both positioned at two ends of the through hole.
5. The aluminum alloy I-shaped thrust rod according to any one of claims 1 to 4, further comprising a straight-pushing spherical hinge (1), a straight-pushing retainer ring (2), an inclined-pushing spherical hinge (4) and an inclined-pushing retainer ring (5), wherein the straight-pushing spherical hinge (1) and the inclined-pushing spherical hinge (4) are respectively installed in the straight-pushing through hole and the inclined-pushing through hole and are respectively fixed through the straight-pushing retainer ring (2) and the inclined-pushing retainer ring (5).
6. A method for processing an aluminum alloy I-shaped thrust rod is characterized by comprising the following steps:
forging an aluminum alloy blank by using forging equipment to obtain an I-shaped thrust rod forged aluminum blank, then trimming and removing materials, and performing corresponding heat treatment to obtain an I-shaped thrust rod semi-finished product;
machining the end heads, namely machining the two end heads on a vertical numerical control lathe to obtain through holes required for assembling the spherical hinges and the check rings;
step three, surface treatment, namely performing surface treatment on the machined I-shaped thrust rod semi-finished product;
and step four, assembling, printing a plastic mark, and assembling a spherical hinge and a retainer ring to complete the production of the I-shaped thrust rod assembly.
7. The method for processing the aluminum alloy I-shaped thrust rod as recited in claim 6, wherein in the first step, the heat treatment comprises solution treatment and artificial aging, the temperature of the solution treatment is 550 ℃ ± 10 ℃, the holding time is 2h, the quenching transfer time of water quenching is less than 15 seconds, and the water temperature is 25-35 ℃; keeping the artificial aging temperature at 180 ℃, keeping the temperature for 10 hours, and cooling in air.
8. The method of claim 6, wherein in the third step, the surface treatment comprises: degreasing, phosphorizing, electrophoresing and spraying finish paint, wherein in the surface treatment process, the baking temperature is not more than 200 ℃, the thickness of a paint film is 20-100 mu m, and the adhesive force of the paint film is not more than grade 1.
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| CN202010311087.XA CN111391590A (en) | 2020-04-20 | 2020-04-20 | Aluminum alloy I-shaped thrust rod and machining method thereof |
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| CN109226620A (en) * | 2018-10-10 | 2019-01-18 | 江苏亚太安信达铝业有限公司 | A kind of forging molding process of heavy goods vehicles aluminium alloy vertical pulling distance rod |
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Application publication date: 20200710 |