JPH0849559A - Resin blade part, manufacture, and repairing method - Google Patents

Abstract

PURPOSE:To prevent a metal thin plate from being peeled off by sticking and fixing the metal thin plate having erosion resistance at the exposed portions of metal meshy bodies to a resin blade member main body buried with the metal meshy bodies along the surface. CONSTITUTION:A peripheral edge section 20 laminated with a thermoplastic resin film 22 is formed as a pre-form 18 on the outer periphery of the center section 19 of a fan outlet guide blade 17 provided on a jet engine,. Metal meshy bodies 25 having erosion-resistance such as stainless steel are inserted into a thermoplastic resin film 22 constituting the surface portion of a front edge section 21. The formed pre-form 18 is put in a die, it is heated and fused under pressure, then it is cooled together with the die and hardened, and a resin blade part main body 26 is formed. The front edge section 21 of the resin blade part main body 26 is polished to expose the metal meshy bodies 25, and a metal thin plate 26 having erosion resistance such as stainless steel is stuck and fixed to manufacture a fan outlet guide blade 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin blade component used in a jet engine and the like, a manufacturing method thereof and a repairing method thereof.

[0002]

2. Description of the Related Art FIG. 7 schematically shows a jet engine.

A low pressure compressor drive shaft 2 is rotatably disposed at the axial center of a cylindrical engine body 1, a low pressure compressor 3 is attached to the tip of the low pressure compressor drive shaft 2, and a low pressure compressor drive is performed. A low-pressure turbine 4 is attached to the rear end of the shaft 2, a hollow high-pressure compressor drive shaft 5 is rotatably fitted on the outer periphery of the middle portion of the low-pressure compressor drive shaft 2, and a high pressure is applied to the tip of the high-pressure compressor drive shaft 5. The compressor 6 is attached, a high pressure turbine 7 is attached to the rear end of the high pressure compressor drive shaft 5, and a combustor 8 is provided in the engine body 1 at an intermediate position between the high pressure compressor 6 and the high pressure turbine 7.
To provide.

Further, a low-pressure compressor blade 10 projecting outward from the engine body 1 is attached to the disk 9 of the low-pressure compressor 3, and the low-pressure compressor blade 1 is attached to the tip of the engine body 1.
An outer cylinder 11 that surrounds 0 is provided, and the engine body 1 and the outer cylinder 11 are arranged.
A fan outlet guide vane 12 is provided between and.

Incidentally, 13 is air, and 14 is combustion gas generated in the combustor 8.

Then, the fuel is supplied to the combustor 8 provided inside the engine body 1, and the air 13 is mixed with the fuel and burned.

Then, the combustion gas 14 generated by the combustion
Flows backward in the engine body 1, rotates the high-pressure turbine 7 and the low-pressure turbine 4 provided behind the combustor 8, and is then injected from the rear part of the engine body 1 to generate thrust. ing.

When the low pressure turbine 4 is rotated,
The low pressure compressor 3 is driven via the low pressure compressor drive shaft 2,
The low-pressure compressor moving blade 10 attached to the disk 9 of the low-pressure compressor 3 rotates to suck air 13 into the outer cylinder 11, and a part of the sucked air 13 is introduced into the engine body 1 to lower the pressure. It is compressed by the compressor 3.

The air 13 compressed by the low pressure compressor 3 is compressed to a high pressure by the high pressure compressor 6 driven by the rotation of the high pressure turbine 7 via the high pressure compressor drive shaft 5.

The air 13 compressed by the high pressure compressor 6 enters the combustor 8 and is used for combustion of fuel as described above.

On the other hand, the low pressure compressor moving blade 10 causes the outer cylinder 1 to move.
The remaining air 13 introduced into 1 flows between the engine body 1 and the outer cylinder 11, is rectified by the fan outlet guide vanes 12, and then is injected from the rear part of the outer cylinder 11 to generate thrust. Has become.

In the above jet engine, it has been considered to use resin parts for weight reduction.
First, the engine body 1 whose temperature is raised by combustion of fuel
Resinification is started from around the fan outlet guide vanes 12 that are kept at a temperature lower than the inside.

A typical thermosetting resin such as an epoxy resin is used as the material of the fan outlet guide vanes 12.

When the fan outlet guide vanes 12 are made of resin, erosion due to sand entering the outer cylinder 11 together with the air 13 by the low pressure compressor rotor 10 becomes a problem.
As a countermeasure against erosion at present, as shown in Fig. 8,
It is considered that a thin metal plate 16 or the like is bonded to the surface of the front edge portion 15 of the fan outlet guide vane 12.

It should be noted that the mounting of the metal thick plate on the surface of the front edge portion 15 of the fan outlet guide blade 12 is because it is difficult to reproduce the complicated and delicate blade front edge portion shape with the thick plate. Therefore, it is technically difficult.

[0016]

However, when the metal thin plate 16 or the like is adhered to the surface of the resin component for the jet engine such as the fan outlet guide vanes 12 or the like, the adhesiveness between the resin and the metal is poor, or between the two. There is a problem that the metal thin plate 16 is easily peeled off due to a large difference in thermal expansion coefficient.

In view of the above situation, it is an object of the present invention to provide a resin blade component in which a metal thin plate is hard to be peeled off, a manufacturing method thereof and a repairing method thereof.

[0018]

The first means of the present invention is as follows:
A resin wing component main body in which a metal net-like body is embedded along the surface, and a resin-made thin metal plate having erosion resistance is adhered and fixed to the exposed portion of the metal net-like body. It is related to the wing parts.

A second means of the present invention is to embed a metal net-like body in a resin blade component body so that a part of the metal net-like body is exposed in advance, and to expose the metal net-like body to a metal thin plate having erosion resistance. The present invention relates to a method for manufacturing and repairing resin wing parts, which is characterized by bonding and fixing.

In a third means of the present invention, the resin wing component body having a metal net-like body embedded inside along the surface is worn by use and the metal net-like body is exposed on the surface. At the same time, the present invention relates to a method for repairing a resin wing component, characterized in that a thin metal plate having erosion resistance is adhered and fixed to an exposed portion of the metal net-like body.

For each of the above means, a resin wing component body made of a thermoplastic resin may be used.

Further, a metal thin plate may be fixedly adhered to the metal net-like body embedded in the front edge portion of the resin blade component body.

[0023]

The operation of the present invention is as follows.

Since the metal thin plates are adhered and fixed to the metal net-like body embedded in the resin wing component body, the metals are bonded to each other, so that high adhesiveness is obtained and the metal thin plates are difficult to peel off. Become.

The above-mentioned metal thin plate can be adhered during the manufacture and repair of the resin blade component.

Further, it is highly effective if the resin blade component body is made of a thermoplastic resin having excellent erosion resistance.

Further, the metal net-like body is effective even if it is partially embedded in the front edge of the resin wing component body where erosion is likely to occur.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 show a first embodiment of the present invention.

Further, in the figure, 17 is a fan outlet guide blade as an example of a resin blade component provided in a jet engine,
Reference numeral 18 is a preform of the fan outlet guide vane 17, 19 is a central portion of the fan outlet guide vane 17 and the preform 2,
Reference numeral 0 is a peripheral portion of the fan outlet guide blade 17 and the preform 18, and 21 is a fan outlet guide blade 17 and the preform 18.
Is the front edge of.

Then, a thermoplastic resin film 22 made of a film of a polyether ether ether ketone (hereinafter referred to as PEEK) type thermoplastic resin is provided.

Similarly, a carbon fiber reinforced resin film 24 formed by film-forming a carbon fiber reinforced resin obtained by containing a carbon fiber 23 in a PEEK thermoplastic resin is provided.

As shown in FIG. 2, a carbon fiber reinforced resin film 24 is laminated, or a thermoplastic resin film 22 is appropriately interposed between the laminated carbon fiber reinforced resin films 24 to form a blade-shaped central portion. 19 is formed, and a thermoplastic resin film 22 is laminated on the outer periphery of the central portion 19 to form a peripheral edge portion 20 to form a preform 18.

At this time, among the thermoplastic resin films 22 constituting the peripheral edge portion 20, between the thermoplastic resin film 22 constituting the surface portion of the front edge portion 21, a metal net-like member having erosion resistance such as stainless steel is provided. The body 25 is interposed.

Then, the formed preform 18 is put into a mold (not shown), heated and melted under pressure, and then the mold is cooled and hardened, whereby a resin blade as shown in FIG. 3 is obtained. The component body 26 is formed.

Further, the front edge portion 21 of the resin blade component body 26 is
The metal reticulate body 25 is exposed to the surface by polishing or the like, and the metal reticulate body 25 has an erosion resistance of 0.1 to 0.3 m such as stainless steel as shown in FIG.
A thin metal plate 27 having a thickness of about m is adhered and fixed by using a silicone or epoxy adhesive, and the fan outlet guide vane 1
7

As described above, according to the present invention, the carbon fiber reinforced resin obtained by containing the carbon fiber 23 in the PEEK thermoplastic resin is used in the central portion 19 of the fan outlet guide vane 17 as the resin blade component, and the peripheral edge thereof is used. A PEEK-based thermoplastic resin is used for the part 20, but the PEEK-based thermoplastic resin and the carbon fiber reinforced resin obtained by adding the carbon fiber 23 thereto are
Since it has high toughness and is tough against impact force, it is necessary to create a fan outlet guide vane 17 which is superior in erosion resistance as compared with a thermosetting resin such as an epoxy resin which is strong but brittle. You can

Further, a thermoplastic resin or a carbon fiber reinforced resin is formed into a film, and a thermoplastic resin film 22, a carbon fiber reinforced resin film 24, etc. are laminated as shown in FIG. 3 to preform the fan outlet guide vane 17. Since 18 is configured, handling and stacking are easy, and moreover,
It becomes easy to arrange the metal mesh 25 having erosion resistance such as stainless steel between the thermoplastic resin film 22 and the carbon fiber reinforced resin film 24 at the time of lamination, and a resin having a desired shape, structure and function is formed. The wing component body 26 can be freely created.

Further, the preform 18 shown in FIG. 2 is put into a mold (not shown), heated and melted under pressure, and then the mold is cooled and hardened, so that as shown in FIGS. 1 and 3. , The resin blade component body 26 in which the respective tissues are integrally bonded is formed, and in particular, the front edge portion 21 of the preform 18 is formed.
Since the metal net 25 is disposed between the layers of the thermoplastic resin film 22 on the surface portion, the metal net 25
Since the thermoplastic resin of the thermoplastic resin film 22 is embedded in the mesh of the metal net 25 and the metal net 25 is embedded in the thermoplastic resin to obtain a strong bond, the metal net 25 is prevented from peeling off. To be done.

Then, as shown in FIG. 4, the metal mesh 25 firmly embedded in the thermoplastic resin has a thickness of about 0.1 to 0.3 mm having erosion resistance such as stainless steel. By directly adhering and fixing the metal thin plate 27 using a silicon-based or epoxy-based adhesive, it is possible to bond the metals to each other, so that good adhesiveness is obtained and the metal thin plate 27 is difficult to peel off. can do.

In this way, the fan outlet guide vane 17 having the metal thin plate 27 adhered to the surface of the front edge portion 21 can effectively prevent erosion due to sand sucked during flight.

The metal thin plate 27 can be adhered to the entire resin blade component body 26, but by providing the metal thin plate 27 concentratedly on the front edge portion 21 which is particularly affected by erosion, the fan outlet guide is provided. It is possible to achieve both weight reduction of the blade 17 and erosion resistance.

When the metal thin plate 27 is worn due to erosion, the metal thin plate 27 can be repaired and reused as many times as necessary by replacing the metal thin plate 27.

5 and 6 show the second embodiment of the present invention.

In the above-described embodiment, the fan outlet guide vane 17 in which the thin metal plate 27 is adhered to the surface of the front edge portion 21 from the beginning.
In contrast to this, in the present embodiment, as shown in FIGS. 5 and 6, the fan outlet guide vanes 17 are formed so that the metal mesh 25 is embedded inside the front edge portion 21. When the fan outlet guide vanes 17 are used in this state, when the thermoplastic resin forming the front edge portion 21 is worn and the metal net 25 is exposed on the surface as shown in FIG. The metal thin plate 27 is adhered and fixed to the metal net 25 to repair the fan outlet guide vanes 17.

Except for the above, the structure is the same as that of the above-mentioned embodiment, and the same action and effect can be obtained.

The present invention is not limited to the above-mentioned embodiments, but may be based on thermosetting resins other than those based on PEEK thermoplastic resins. Applicability is applicable, application is also possible when the metal net-like body is embedded in a portion other than the front edge of the resin wing component body, and other various changes are possible without departing from the scope of the present invention. Of course, it can be added.

[0048]

As described above, according to the invention described in claims 1 to 9, the excellent effect that the metal thin plate adhered to the resin blade component for the purpose of preventing erosion can be made difficult to peel off. Can play.

[Brief description of drawings]

FIG. 1 is an overall schematic sectional view of a fan outlet guide vane according to a first embodiment of the present invention.

2 is a partial enlarged view of a front edge portion of a preform for forming the fan outlet guide vane of FIG. 1. FIG.

3 is a partial enlarged view of a front edge portion of a resin wing component body formed from the preform of FIG.

4 is an enlarged view of a front edge portion of a resin blade component formed from the resin blade component body of FIG.

FIG. 5 is a partially enlarged view of the front edge portion of the preform of the fan outlet guide vane according to the second embodiment of the present invention.

6 is a partially enlarged view of a front edge portion of a resin wing component body formed from the preform of FIG.

FIG. 7 is a schematic side sectional view of a jet engine.

FIG. 8 is a schematic enlarged view of a leading edge portion of a resin-made fan outlet guide vane currently under study.

[Explanation of symbols]

 21 Front Edge 22 Thermoplastic Resin Film (Thermoplastic Resin) 24 Carbon Fiber Reinforced Resin Film (Thermoplastic Resin) 25 Metal Net Body 26 Resin Wing Component Main Body 27 Metal Thin Plate

Claims (9)

[Claims] 1. A thin metal plate having erosion resistance is adhered and fixed to an exposed portion of the metal net-like body with respect to a resin blade component body in which a metal net-like body is embedded along the surface. Characteristic resin wing parts. 2. The resin blade component according to claim 1, wherein the resin blade component body is made of a thermoplastic resin. 3. The resin wing component according to claim 1, wherein the metal net-like body is embedded in the front edge of the resin wing component body. 4. The resin wing component body is previously embedded with a metal net-like body so that a part thereof is exposed on the surface, and a metal thin plate having erosion resistance is adhered and fixed to the exposed portion of the metal net-like body. Method for manufacturing and repairing resin wing parts. 5. The method of manufacturing and repairing a resin blade component according to claim 4, wherein a resin blade component body made of a thermoplastic resin is used. 6. The metal thin plate is adhered and fixed to the metal net-like body embedded in the front edge portion of the resin blade component body.
Alternatively, the method for manufacturing and repairing the resin wing component according to item 5. 7. When the resin wing component body in which the metal net-like body is embedded along the surface thereof is worn by use and the metal net-like body is exposed on the surface, the metal net-like body A method of repairing a resin wing component, which comprises bonding and fixing a thin metal plate having erosion resistance to an exposed portion. 8. The method of repairing a resin blade component according to claim 7, wherein a resin blade component body made of a thermoplastic resin is used. 9. The metal thin plate is adhered and fixed to the metal net-like body embedded in the front edge portion of the resin blade component body.
Alternatively, the method of repairing a resin blade component according to item 8.