CN113931921A - Lightweight all-aluminum alloy connecting rod and preparation method thereof - Google Patents
Lightweight all-aluminum alloy connecting rod and preparation method thereof Download PDFInfo
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- CN113931921A CN113931921A CN202111153662.9A CN202111153662A CN113931921A CN 113931921 A CN113931921 A CN 113931921A CN 202111153662 A CN202111153662 A CN 202111153662A CN 113931921 A CN113931921 A CN 113931921A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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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
-
- 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
- C22F1/043—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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a lightweight all-aluminum alloy connecting rod, which belongs to the technical field of composite materials, and has the characteristics of light weight, wear resistance, long service life, low noise and energy conservation; the connecting rod comprises a connecting rod body and an aluminum alloy bushing arranged in a small-end pin hole in the connecting rod body, wherein the connecting rod body is made of high-strength cast or forged aluminum alloy, the aluminum alloy bushing is made of high-silicon wear-resistant and heat-resistant aluminum alloy, and the connecting rod body and the aluminum alloy bushing are cast in an inlaid mode or are embedded into a whole in a hot mode. The invention also discloses a preparation method of the lightweight all-aluminum alloy connecting rod.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a lightweight all-aluminum alloy connecting rod; the invention also relates to a preparation method of the connecting rod.
Background
Engine, air compressor machine, refrigerator connecting rod use cast iron or steel connecting rod at present as the owner, and the main market pain point that exists is that weight is big, the operation energy resource consumption is big, the noise is big, along with the improvement of environmental protection skill standard, lightweight, low noise connecting rod arouse the attention of market increasingly, and the aluminum alloy has abundant resources, advantage that the proportion is little, is the lightweight material of ideal, and the aluminum alloy connecting rod begins primary use in the market. However, the traditional aluminum alloy material has poor wear resistance, particularly the connecting rod small head shaft pin hole is stressed greatly, so that the wear is more prone to occur, the service life is not ideal, in order to improve the wear resistance of the aluminum alloy connecting rod small head hole, a conventional steel-copper laminated composite material lining is embedded into the small head hole in the existing treatment method, but the problems of heat matching degree, interface corrosion degree and the like exist between the steel and the aluminum alloy material of the connecting rod base body, the lining is prone to loosening under the high-speed reciprocating motion of the connecting rod, the service life and the safety are low, and the noise is also high. Therefore, a connecting rod with lighter weight, better wear resistance and less noise is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a lightweight all-aluminum alloy connecting rod which is light in weight, wear-resistant, long in service life, low in noise and energy-saving. The latter purpose of the invention is to provide a preparation method of the connecting rod.
The former technical scheme of the invention is as follows:
the utility model provides a full aluminum alloy connecting rod of lightweight, includes connecting rod body and the aluminum alloy bush of setting in the little head pinhole on the connecting rod body, wherein, the connecting rod body is high strength casting or forged aluminum alloy, the aluminum alloy bush wear-resisting heat-resisting aluminum alloy of high-silicon, connecting rod body and aluminum alloy bush cast-in or hot-inserting integrated into one piece.
Further, the aluminum alloy bushing is composed of the following materials in parts by weight: 65-90 parts of aluminum, 20-30 parts of silicon, 1-2.6 parts of copper, 1-3.0 parts of magnesium, 0.05-6 parts of iron, 0.05-2 parts of vanadium, 0.05-0.5 part of yttrium and 0.05-0.5 part of zirconium, wherein the sum of the percentages of all the materials is 100%.
Further, the connecting rod body is made of 2 series cast aluminum alloy or 7 series forged high-strength aluminum alloy.
The latter technical scheme of the invention is as follows:
the preparation method of the lightweight all-aluminum alloy connecting rod comprises the following steps of preparing a bushing and preparing the connecting rod, wherein the bushing comprises the following steps:
(1) taking aluminum, silicon, copper, magnesium, iron, vanadium, yttrium and zirconium according to a proportion, smelting, refining, spray casting and rapidly solidifying to obtain an alloy ingot;
(2) performing reverse hot extrusion on the alloy ingot obtained in the step (1) to obtain an alloy pipe;
(3) carrying out heat treatment on the alloy pipe obtained in the step (2), and carrying out finish machining according to the size requirement to obtain an aluminum alloy lining (2);
the connecting rod is prepared by positioning the prepared aluminum alloy bushing at the small-end pin hole of a die-casting die of the connecting rod main body and injecting molten aluminum alloy material for die-casting, or by thermally embedding the aluminum alloy bushing prepared by the aluminum alloy material into the small-end pin hole of the prepared connecting rod main body.
Further, in the step (1) of preparing the lining, the smelting temperature is 800-850 ℃, argon is used for degassing and deslagging in refining, the gas used in injection casting is nitrogen, the injection pressure is 4-10 Mpa, and the diameter of the generated alloy ingot is 100-300 mm.
Further, in the step (2) of preparing the bushing, the extrusion temperature is 420-485 ℃, and the extrusion ratio is 6.2-12.
Further, in the step (3) of preparing the bushing, the heat treatment comprises three processes of solid solution, quenching and aging, wherein the solid solution temperature is 450-520 ℃, the heat preservation time is 2 hours, the quenching temperature is 55-65 ℃, the cooling time is 8-10 seconds, and the aging temperature is 120-160 ℃ and the time is 2-12 hours.
Further, in the step (3) of preparing the lining, the wall thickness of the aluminum alloy lining after finish machining is 4-10 mm.
Further, in the step (4), the aluminum alloy material used is a 2-series or 7-series high-strength aluminum alloy.
Further, in the preparation of the connecting rod, the aluminum alloy material is 2 series cast aluminum alloy or 7 series forged high-strength aluminum alloy.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a lightweight all-aluminum alloy connecting rod, which comprises a connecting rod body and an aluminum alloy bushing arranged in a small-end pin hole in the connecting rod body, wherein the aluminum alloy bushing is composed of materials such as aluminum, silicon, copper, magnesium, iron, vanadium, yttrium and zirconium, the rigidity is strong, the wear resistance is good, the noise is low when the connecting rod is used, the connecting rod body is made of an aluminum alloy material, the connecting rod body and the bushing are integrally formed, and the connecting rod and the bushing are made of aluminum alloy materials, so that the thermal matching interface of the connecting rod body is better in compatibility, the bonding strength is higher, the use is safer, and the lightweight of the connecting rod is realized.
2. The preparation method of the lightweight all-aluminum alloy connecting rod comprises the steps of bush preparation and connecting rod preparation, wherein various materials are quickly solidified to prepare the aluminum alloy bush during the bush preparation, the prepared aluminum alloy bush is positioned at the small-end pin hole of a die-casting die of a connecting rod main body during the connecting rod preparation, and molten aluminum alloy material is injected to be die-cast and integrally formed, or the prepared aluminum alloy bush is thermally embedded into the small-end pin hole of the connecting rod main body prepared by forging, so that the connecting rod main body and the aluminum alloy bush are better combined with each other, the thermal matching interface is better in compatibility, the bonding strength is higher, and the use is safer; the aluminum alloy lining is made of aluminum alloy with high silicon content, has higher rigidity and better wear resistance, and silicon particles in the aluminum alloy lining are distributed finely and uniformly, so that the aluminum alloy lining is a good self-lubricating material and can effectively reduce noise generated in the motion process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic view of a connecting rod according to the present invention;
FIG. 2 is a schematic structural view of a small-end pin hole of a connecting rod body according to the present invention;
FIG. 3 is a schematic view of the structure of an abrasive in a comparative test.
Description of reference numerals: 1-a connecting rod body; 2-aluminum alloy bushing.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments, but the present invention is not limited thereto.
Example 1
Referring to fig. 1 and 2, the lightweight all-aluminum alloy connecting rod comprises a connecting rod body 1 and an aluminum alloy bushing 2 arranged in a small-end pin hole in the connecting rod body 1. The aluminum alloy bushing 2 is composed of the following materials in parts by weight: 74.2 parts of aluminum, 20 parts of silicon, 2 parts of copper, 1.8 parts of magnesium, 0.5 part of iron, 0.5 part of vanadium, 0.5 part of yttrium and 0.5 part of zirconium. The connecting rod body 1 is made of 2-series A356 die-casting aluminum alloy materials, and the connecting rod body 1 and the aluminum alloy bushing 2 are formed in a die-casting mode.
A preparation method of a lightweight all-aluminum alloy connecting rod comprises the steps of bush preparation and connecting rod preparation, wherein the bush preparation comprises the following steps:
(1) taking aluminum, silicon, copper, magnesium, iron, vanadium, yttrium and zirconium according to a proportion, smelting, refining, spray casting and rapidly solidifying to obtain an alloy ingot.
Wherein the smelting temperature is 820 ℃, argon is used for degassing and deslagging in refining, the gas used in injection casting is nitrogen, the injection pressure is 5Mpa, and the diameter of the generated alloy ingot is 300 mm.
(2) And (3) performing reverse hot extrusion on the alloy ingot obtained in the step (1) to obtain an alloy pipe.
Wherein the extrusion temperature is 445 ℃, the extrusion ratio is 6.2, and the extrusion mode is reverse extrusion.
(3) And (3) carrying out heat treatment on the alloy pipe obtained in the step (2), and carrying out finish machining according to the size requirement to obtain the aluminum alloy lining 2.
Wherein, the heat treatment comprises three processes of solid solution, quenching and aging. The solid solution temperature is 450 ℃, the heat preservation time is 2 hours, the quenching temperature is 55 ℃, the cooling time is 8 seconds, and the aging temperature is 120 ℃ and the aging time is 8 hours. The wall thickness of the aluminum alloy lining 2 after finish machining is 5 mm.
The connecting rod is prepared by positioning the prepared aluminum alloy bushing 2 at the position of a small-end pin hole of a die-casting die of the connecting rod main body 1, and injecting molten aluminum alloy material for die-casting and forming. Wherein the aluminum alloy material is 2 series cast aluminum alloy.
And performing finish machining on the die-cast lightweight all-aluminum alloy connecting rod, and performing expansion fracture on the large end position of the connecting rod body 1 according to the design requirement.
Example 2
Referring to fig. 1 and 2, the lightweight all-aluminum alloy connecting rod comprises a connecting rod body 1 and an aluminum alloy bushing 2 arranged in a small-end pin hole in the connecting rod body 1. The aluminum alloy bushing 2 is composed of the following materials in parts by weight: 66.2 parts of aluminum, 25 parts of silicon, 2.0 parts of copper, 1.8 parts of magnesium, 2 parts of iron, 1.5 parts of vanadium, 0.5 part of yttrium and 0.5 part of zirconium, wherein the connecting rod body 1 is a fast-solidifying 7-series 7055 high-strength aluminum alloy material, and the connecting rod body 1 and the aluminum alloy bushing 2 are formed by hot insert molding.
A preparation method of a lightweight all-aluminum alloy connecting rod comprises the steps of bush preparation and connecting rod preparation, wherein the bush preparation comprises the following steps:
(1) taking aluminum, silicon, copper, magnesium, iron, vanadium, yttrium and zirconium according to a proportion, smelting, refining, spray casting and rapidly solidifying to obtain an alloy ingot.
Wherein the smelting temperature is 840 ℃, argon is used for degassing and deslagging during refining, the gas used during jet casting is nitrogen, the jet pressure is 5Mpa, and the diameter of the generated alloy ingot is 300 mm.
(2) And (3) performing reverse hot extrusion on the alloy ingot obtained in the step (1) to obtain an alloy pipe.
Wherein the extrusion temperature is 450 ℃, the extrusion ratio is 8, and the extrusion mode is reverse extrusion.
(3) And (3) carrying out heat treatment on the alloy pipe obtained in the step (2), and carrying out finish machining according to the size requirement to obtain the aluminum alloy lining 2.
Wherein, the heat treatment comprises three processes of solid solution, quenching and aging. The solid solution temperature is 458 ℃, the heat preservation time is 2 hours, the quenching temperature is 55 ℃, the cooling time is 8 seconds, and the aging temperature is 120 ℃ and the aging time is 8 hours. The wall thickness of the aluminum alloy lining 2 after finish machining is 5 mm. The finish machining process comprises the steps of finish machining the outer diameter of the aluminum alloy lining 2 and highly finish machining the aluminum alloy lining 2.
The connecting rod is prepared by thermally embedding an aluminum alloy bushing 2 prepared from an aluminum alloy material into a small-end pin hole of a prepared connecting rod main body 1. Wherein the aluminum alloy material is a fast-setting 7-series 7055 high-strength aluminum alloy. When the connecting rod main body 1 is prepared, the connecting rod main body 1 is forged by using an aluminum alloy material according to design requirements.
And performing finish machining on the lightweight all-aluminum alloy connecting rod subjected to hot insert molding, wherein the large end position of the connecting rod body 1 is subjected to expansion fracture according to the design requirement.
Comparative test
Selecting four materials of LD10 forged aluminum, a copper alloy CuSn5Pb5Zn5, an aluminum alloy bushing in the embodiment 1 and an aluminum alloy bushing in the embodiment 2 to prepare test pieces 1 to 4 shown in the figure 3, wherein the angle a in the figure 3 is 45 degrees, the length b is 30mm, and the length c is 25mm, carrying out three-body abrasive wear test on the four abrasives in the test pieces 1 to 4 respectively, wherein the selected abrasives in the test are quartz, the abrasive grain size is less than 50mm, the orbit radius is 200mm, the orbit width is 20mm, the load is 4kg, the rotating speed is 50r/min, the test time of each test piece is 120 minutes, and after the test is finished, measuring the volume of the test piece respectively and calculating the wear amount and the relative wear resistance of the test piece as shown in the table 1.
TABLE 1 abrasive wear test data for four test pieces
| Numbering | Material | Preparation process | Volume abrasion loss/mm3 | Relative wear |
| Test piece | ||||
| 1 | LD10 forged aluminum | Forging | 156.8 | 1 |
| |
CuSn5Pb5Zn5 | Powder rolling | 68.5 | 2.29 |
| Test piece 3 | Example 1 | Injection molding | 65.5 | 2.38 |
| Test piece 4 | Example 2 | Injection molding | 60.8 | 2.58 |
From table 1, it can be seen that the wear amounts and relative wear resistances of the test piece 2, the test piece 3, and the test piece 4 are superior to those of the test piece 1, and the wear amount of the test piece 1 is the largest, i.e., the wear resistance of the rapidly solidified high-silicon aluminum alloy material obtained from the test data is much higher than that of the existing conventional copper alloy connecting rod lining material and much higher than that of the forged aluminum alloy material.
According to the special structure of the aluminum alloy lining material in the lightweight all-aluminum alloy connecting rod, uniformly dispersed silicon particles are arranged on the surface of the lining, the silicon particles are self-lubricating materials and have extremely low friction coefficient with a shaft pin, the rigidity of an aluminum matrix is lower than that of the silicon particles, the aluminum matrix can elastically avoid friction dual rigid abrasion in the aspect of strong friction, the contact surface is an ideal rigid shaft pin abrasion-resistant dual material with abrasion resistance and good elastic-plastic property of the matrix, meanwhile, the heat resistance of aluminum alloy is greatly improved by iron and vanadium, and the aluminum alloy material with high alloy content is difficult to prepare by traditional cast aluminum alloy. The wear resistance of the fast-solidification high-silicon-iron vanadium-aluminum alloy bushing is more than 10 percent higher than that of a copper alloy (CuSn5Pb5Zn) bushing for an engine connecting rod. The all-aluminum alloy connecting rod wear-resistant and heat-resistant bushing is cast-in or formed by hot-in with the high-strength and high-toughness aluminum alloy connecting rod, the homogeneous material can realize metallurgical bonding, and the problem of small end wear of the aluminum alloy connecting rod is well solved. The all-aluminum alloy connecting rod disclosed by the invention has excellent strength, thermal conductivity and wear resistance, meets the safety requirements of using the connecting rod of the air compressor and the engine, and has the characteristics of light weight, energy conservation and capability of improving the efficiency of the air compressor and the internal combustion engine.
The above description is only exemplary of the invention, and any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention should be considered within the scope of the present invention.
Claims (9)
1. The utility model provides a full aluminum alloy connecting rod of lightweight, includes connecting rod body (1) and sets up aluminum alloy bush (2) in connecting rod body (1) last microcephaly pinhole, its characterized in that, connecting rod body (1) are high strength casting or forged aluminum alloy, aluminum alloy bush (2) be the wear-resisting heat-resisting aluminum alloy of high-silicon, connecting rod body (1) and aluminum alloy bush (2) inlay casting or hot-embedding integrated into one piece.
2. The connecting rod of claim 1, wherein the aluminum alloy bushing (2) is made of the following materials in parts by weight: 65-90 parts of aluminum, 20-30 parts of silicon, 1-2.6 parts of copper, 1-3.0 parts of magnesium, 0.5-6 parts of iron, 0.05-2 parts of vanadium, 0.05-0.5 part of yttrium and 0.05-0.5 part of zirconium, wherein the sum of the percentages of all the materials is 100%.
3. The connecting rod of claim 1, wherein the connecting rod body (1) is made of 2-series cast aluminum alloy or 7-series forged high-strength aluminum alloy.
4. The preparation method of the light-weight all-aluminum alloy connecting rod as claimed in claim 1 or 2, comprising the steps of preparing a bushing and preparing the connecting rod, wherein the bushing preparation comprises the following steps:
(1) taking aluminum, silicon, copper, magnesium, iron, vanadium, yttrium and zirconium according to a proportion, smelting, refining, spray casting and rapidly solidifying to obtain an alloy ingot;
(2) performing reverse hot extrusion on the alloy ingot obtained in the step (1) to obtain an alloy pipe;
(3) carrying out heat treatment on the alloy pipe obtained in the step (2), and carrying out finish machining according to the size requirement to obtain an aluminum alloy lining (2);
the connecting rod is prepared by positioning the prepared aluminum alloy bushing (2) at the small-end pin hole of a die-casting die of the connecting rod main body (1) and injecting a molten aluminum alloy material for die-casting or thermally embedding the aluminum alloy bushing (2) prepared by the aluminum alloy material into the small-end pin hole of the prepared connecting rod main body (1).
5. The method for preparing the lightweight all-aluminum alloy connecting rod according to claim 4, wherein in the step (1) of preparing the bushing, the smelting temperature is 800-850 ℃, argon is used for degassing and deslagging in refining, the gas used in injection casting is nitrogen, the injection pressure is 4-10 MPa, and the diameter of the produced alloy ingot is 100-300 mm.
6. The method for preparing a lightweight all-aluminum alloy connecting rod according to claim 4, wherein in the step (2) of preparing the bushing, the extrusion temperature is 420 to 485 ℃ and the extrusion ratio is 6.2 to 12.
7. The method for preparing the lightweight all-aluminum alloy connecting rod according to claim 4, wherein in the step (3) of preparing the bushing, the heat treatment comprises three processes of solid solution, quenching and aging, the solid solution temperature is 450-520 ℃, the holding time is 2 hours, the quenching temperature is 55-65 ℃, the cooling time is 8-10 seconds, and the aging temperature is 120-160 ℃ and the time is 2-12 hours.
8. The method for preparing the lightweight all-aluminum alloy connecting rod according to claim 4, wherein in the step (3) of preparing the bush, the wall thickness of the aluminum alloy bush (2) after finish machining is 4-10 mm.
9. The method of claim 4, wherein the aluminum alloy material is 2-series cast aluminum alloy or 7-series forged high strength aluminum alloy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111153662.9A CN113931921A (en) | 2021-09-29 | 2021-09-29 | Lightweight all-aluminum alloy connecting rod and preparation method thereof |
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| CN202111153662.9A CN113931921A (en) | 2021-09-29 | 2021-09-29 | Lightweight all-aluminum alloy connecting rod and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722412A (en) * | 1980-07-15 | 1982-02-05 | Mitsubishi Heavy Ind Ltd | Connecting rod |
| CN1775979A (en) * | 2005-12-02 | 2006-05-24 | 昆明贵金属研究所 | Nouel high-strength wear-resisting and corrosion-resisting aluminium alloy |
| CN101486087A (en) * | 2009-02-11 | 2009-07-22 | 江苏大学 | Casting and forging combined technique of aluminum alloy linkage rod |
| CN101985706A (en) * | 2010-11-18 | 2011-03-16 | 江苏万里活塞轴瓦有限公司 | Aluminum alloy material for hot precision forging connection rod and preparation method thereof |
| CN104132055A (en) * | 2014-07-24 | 2014-11-05 | 浙江昌利锻造有限公司 | Engine connecting rod |
| CN104500551A (en) * | 2014-12-15 | 2015-04-08 | 广西大学 | Engine connecting rod |
| CN104651684A (en) * | 2013-11-25 | 2015-05-27 | 中国兵器工业第五二研究所 | Aluminum alloy structure material and preparation thereof |
-
2021
- 2021-09-29 CN CN202111153662.9A patent/CN113931921A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722412A (en) * | 1980-07-15 | 1982-02-05 | Mitsubishi Heavy Ind Ltd | Connecting rod |
| CN1775979A (en) * | 2005-12-02 | 2006-05-24 | 昆明贵金属研究所 | Nouel high-strength wear-resisting and corrosion-resisting aluminium alloy |
| CN101486087A (en) * | 2009-02-11 | 2009-07-22 | 江苏大学 | Casting and forging combined technique of aluminum alloy linkage rod |
| CN101985706A (en) * | 2010-11-18 | 2011-03-16 | 江苏万里活塞轴瓦有限公司 | Aluminum alloy material for hot precision forging connection rod and preparation method thereof |
| CN104651684A (en) * | 2013-11-25 | 2015-05-27 | 中国兵器工业第五二研究所 | Aluminum alloy structure material and preparation thereof |
| CN104132055A (en) * | 2014-07-24 | 2014-11-05 | 浙江昌利锻造有限公司 | Engine connecting rod |
| CN104500551A (en) * | 2014-12-15 | 2015-04-08 | 广西大学 | Engine connecting rod |
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Application publication date: 20220114 |