CN112498705A - Aluminum alloy sliding rail section bar for plane ejection seat and manufacturing process thereof - Google Patents
Aluminum alloy sliding rail section bar for plane ejection seat and manufacturing process thereof Download PDFInfo
- Publication number
- CN112498705A CN112498705A CN202011485379.1A CN202011485379A CN112498705A CN 112498705 A CN112498705 A CN 112498705A CN 202011485379 A CN202011485379 A CN 202011485379A CN 112498705 A CN112498705 A CN 112498705A
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- CN
- China
- Prior art keywords
- aluminum alloy
- section bar
- sliding rail
- profile
- manufacturing process
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- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D25/00—Emergency apparatus or devices, not otherwise provided for
- B64D25/08—Ejecting or escaping means
- B64D25/10—Ejector seats
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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
- C22C21/10—Alloys based on aluminium with zinc 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
- C22F1/04—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
- C22F1/053—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 zinc as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
- Forging (AREA)
Abstract
The invention discloses an aluminum alloy sliding rail section bar for an aircraft ejection seat and a manufacturing process thereof, and relates to an aluminum alloy section bar. The section bar comprises a section bar body, a first rail groove and a second rail groove, wherein the first rail groove and the second rail groove which are different in size are arranged on one side of the section bar body, and a groove is formed in the other side of the section bar body. The manufacturing process comprises the following steps: casting → homogenizing treatment → milling face → sawing → ingot heating (heating temperature 436 ℃, heating time 7.5 hours) → extrusion molding → quenching → stretching → aging → finished product detection → finished product sawing → packaging delivery. The invention saves 60 percent of raw materials, thereby reducing the cost of raw materials, improving the machining efficiency and controlling the coarse crystal ring within 2.0 mm. The yield of the product is improved, and the aluminum alloy herringbone profile is used for manufacturing the aircraft ejection seat slide rail, so that the material strength is improved. The machining difficulty coefficient is reduced, and the manufacturing cost is reduced.
Description
Technical Field
The invention relates to an aluminum alloy section bar, in particular to an aluminum alloy sliding rail section bar for an aircraft ejection seat and a manufacturing process thereof.
Background
The aluminum alloy sliding rail section bar for the aircraft ejection seat in the prior art is manufactured by an aluminum alloy round bar through a machining method, is high in cost, unstable in process, complex in machining process and low in product precision, and is not beneficial to batch production. To sum up, the utility model designs an aircraft that can reduce cost of manufacture launches aluminum alloy slide rail section bar for seat.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the aluminum alloy sliding rail section for the plane ejection seat and the manufacturing process thereof, which save 60% of raw materials, thereby reducing the raw material cost, improving the machining efficiency and controlling the coarse crystal ring within 2.0 mm. The yield of the product is improved, and the aluminum alloy herringbone profile is used for manufacturing the aircraft seat slide rail, so that the material strength is improved. And the mechanical processing deformation is reduced, the mechanical processing difficulty coefficient is reduced, and the manufacturing cost is reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme: the aluminum alloy section for the aircraft ejection seat comprises a section body, a first rail groove and a second rail groove, wherein the first rail groove and the second rail groove which are different in size are formed in one side of the section body, and a groove is formed in the other side of the section body.
Preferably, the profile body is in a shape of Chinese character 'shan'.
Preferably, the profile body is made of 7A04T6 aluminum alloy.
Preferably, the profile body 1 consists of the following chemical components: si is less than 0.5, Fe is less than 0.5, Cu1.75-1.8, Mn0.27-0.58, Mg1.95-2.75, Cr0.16-0.24, Zn5.6-6.88, Ti is less than 0.1, other impurities are less than 0.15, and the balance is AI.
The manufacturing process of the aluminum alloy sliding rail section for the plane ejection seat comprises the following steps: casting → homogenizing treatment → milling face → sawing → ingot heating (heating temperature 436 ℃, heating time 7.5 hours) → extrusion molding → quenching → stretching → aging → finished product detection → finished product sawing → packaging delivery.
The invention has the beneficial effects that: the invention has reasonable structural design, improves the yield of products, and improves the material strength by using the aluminum alloy herringbone profile to manufacture the aircraft seat slide rail. And the mechanical processing deformation is reduced, the mechanical processing difficulty coefficient is reduced, and the manufacturing cost is reduced.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the following technical solutions are adopted in the present embodiment: the aluminum alloy sliding rail profile for the plane ejection seat comprises a profile body 1, a first rail groove 2 and a second rail groove 3, wherein the first rail groove 2 and the second rail groove 3 which are different in size are arranged on one side of the profile body 1, and a groove 4 is formed in the other side of the profile body 1.
It is noted that the profile body 1 is in a chevron shape.
It is noted that the profile body 1 is made of 7a04T6 aluminum alloy.
The profile body 1 consists of the following chemical components: si is less than 0.5, Fe is less than 0.5, Cu1.75-1.8, Mn0.27-0.58, Mg1.95-2.75, Cr0.16-0.24, Zn5.6-6.88, Ti is less than 0.1, other impurities are less than 0.15, and the balance is AI.
The manufacturing process of the aluminum alloy sliding rail section for the plane ejection seat comprises the following steps: casting → homogenizing treatment → milling face → sawing → ingot heating (heating temperature 436 ℃, heating time 7.5 hours) → extrusion molding → quenching → stretching → aging → finished product detection → finished product sawing → packaging delivery.
The longitudinal mechanical properties of the aluminum alloy aircraft seat profile of the embodiment are shown in the following table:
according to the specific embodiment, the high-strength aluminum alloy 7A04 is selected, the chemical component content proportion is accurately controlled, and the high-strength aluminum alloy section bar is used as the aircraft seat slide rail, so that the defect that a round aluminum bar is low in processing efficiency and high in cost is overcome, and the mechanical processing is ensured not to deform, so that the design requirement of the aircraft ejection seat is met. The geometric shape is guaranteed through the design of the die, the technical requirements of the shape are met by adopting an extruding mode of an extruder, the grain size and the coarse grain ring requirements of the section are guaranteed by controlling the alloy component proportion, the extruding temperature and the extruding speed and controlling the heat treatment process, the high strength of the section is guaranteed, the shape design meets the processing requirements of a user, and the complete matching with other components is guaranteed.
The specific embodiment adopts the aluminum alloy herringbone profile, and saves 60% of raw materials, so that the raw material cost is reduced, the machining efficiency is improved, and the coarse crystal ring is controlled within 2.0 mm. The yield of the product is improved, and the aluminum alloy herringbone profile is used for manufacturing the aircraft seat slide rail, so that the material strength is improved. The machining difficulty coefficient is reduced, and the manufacturing cost is reduced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The aluminum alloy sliding rail profile for the plane ejection seat is characterized by comprising a profile body (1), a first rail groove (2) and a second rail groove (3), wherein the first rail groove (2) and the second rail groove (3) which are different in size are arranged on one side of the profile body (1), and a groove (4) is formed in the other side of the profile body (1).
2. The aluminum alloy sliding rail profile for the aircraft catapult seat as claimed in claim 1, wherein the profile body (1) is in a chevron shape.
3. The aluminum alloy sliding rail profile for the aircraft catapult seat as claimed in claim 1, wherein the profile body (1) is made of 7A04T6 aluminum alloy.
4. The aluminum alloy sliding rail profile for the aircraft catapult seat as claimed in claim 1, wherein the profile body (1) is composed of the following chemical components: si less than 0.5, Fe less than 0.5, Cu1.75-1.8, Mn0.27-0.58, Mg1.95-2.75, Cr0.16-0.24, Z5.6-6.88, Ti less than 0.1, other impurities less than 0.15, and the balance of AI.
5. The manufacturing process of the aluminum alloy sliding rail section for the plane ejection seat is characterized by comprising the following process flows of: casting → homogenizing treatment → milling face → sawing → ingot heating → extrusion molding → quenching → stretching → aging → finished product detection → finished product sawing → packaging delivery.
6. The manufacturing process of the aluminum alloy slide rail profile for the aircraft catapult seat as claimed in claim 5, wherein the heating temperature of the ingot casting heating process is 436 ℃, and the heating time is 7.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011485379.1A CN112498705A (en) | 2020-12-16 | 2020-12-16 | Aluminum alloy sliding rail section bar for plane ejection seat and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011485379.1A CN112498705A (en) | 2020-12-16 | 2020-12-16 | Aluminum alloy sliding rail section bar for plane ejection seat and manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112498705A true CN112498705A (en) | 2021-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011485379.1A Pending CN112498705A (en) | 2020-12-16 | 2020-12-16 | Aluminum alloy sliding rail section bar for plane ejection seat and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112498705A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH528350A (en) * | 1969-08-04 | 1972-09-30 | Ego Werke | Method and device for butt welding profile rails made of plastic or light metal |
| US4762069A (en) * | 1985-11-09 | 1988-08-09 | Mannesmann Aktiengesellschaft | Rail with suspension and conductor holding claws |
| EP1384813A2 (en) * | 2002-07-24 | 2004-01-28 | Schreck-Mieves GmbH | Crossing of grooved rails |
| US20050170129A1 (en) * | 2004-02-03 | 2005-08-04 | Ellingson Robert T. | Roll-up floor mat |
| EP2431248A1 (en) * | 2010-09-16 | 2012-03-21 | Wilhelm Wißmann GmbH | Floor for a rail vehicle |
| CN208842611U (en) * | 2018-08-06 | 2019-05-10 | 佛山市银正铝业有限公司 | A kind of novel Aerospace Aluminum profile |
-
2020
- 2020-12-16 CN CN202011485379.1A patent/CN112498705A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH528350A (en) * | 1969-08-04 | 1972-09-30 | Ego Werke | Method and device for butt welding profile rails made of plastic or light metal |
| US4762069A (en) * | 1985-11-09 | 1988-08-09 | Mannesmann Aktiengesellschaft | Rail with suspension and conductor holding claws |
| EP1384813A2 (en) * | 2002-07-24 | 2004-01-28 | Schreck-Mieves GmbH | Crossing of grooved rails |
| US20050170129A1 (en) * | 2004-02-03 | 2005-08-04 | Ellingson Robert T. | Roll-up floor mat |
| EP2431248A1 (en) * | 2010-09-16 | 2012-03-21 | Wilhelm Wißmann GmbH | Floor for a rail vehicle |
| CN208842611U (en) * | 2018-08-06 | 2019-05-10 | 佛山市银正铝业有限公司 | A kind of novel Aerospace Aluminum profile |
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