Gas phase aluminizing tool for engine turbine blade

Abstract

The utility model relates to the technical field of aluminizing, and provides a gas phase aluminizing tool for an engine turbine blade, which comprises a loading box, and the loading box comprises a chassis for loading aluminizing raw materials; the bottom net is placed at the top of the chassis; the outer box is used for loading aluminizing raw materials and is of an annular structure with the upper end and the lower end opened, meshes are formed in the inner side of the outer box, and the outer box is placed on the outer edge of the bottom net; the inner box is of an annular structure with the upper end and the lower end opened, meshes are formed in the inner side and the outer side of the inner box, the inner box is placed in the center of the bottom net, and a placing area used for placing blades is formed between the inner box and the outer box. The base plate, the outer box and the inner box are all used for containing aluminizing raw materials, the blade is placed in the containing area between the outer box and the inner box, so that the aluminizing raw materials are arranged on the lower portion and the side face of the blade, the follow-up aluminum atmosphere can make contact with all the surfaces of the blade conveniently, and the aluminizing thickness and quality consistency of all the surfaces of the blade are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminizing, in particular to a vapor phase aluminizing tool for engine turbine blades. Background Art

[0002] Aircraft engine turbine blades are subject to high-temperature oxidation in their service environment and require protective coatings. Protective coatings not only improve the blade's mechanical properties but also significantly enhance its oxidation and corrosion resistance at high temperatures. Vapor-phase aluminizing is currently one of the most commonly used protective methods.

[0003] During vapor aluminizing, the aluminizing material (also called an aluminizing agent, such as an aluminum-iron alloy) and the blade are placed in an aluminizing fixture. The aluminizing fixture is then placed in a vapor aluminizing furnace, where the furnace is evacuated, heated, insulated, and cooled. The aluminizing material does not come into contact with the blade within the aluminizing fixture, typically being placed below or above the blade. The aluminum atmosphere generated by the reaction of the aluminizing material has difficulty contacting all surfaces of the blade, which can easily lead to uneven aluminizing thickness and quality across the blade. Utility Model Content

[0004] The purpose of the utility model is to provide a vapor phase aluminizing tool for engine turbine blades to solve the above-mentioned defects of the prior art.

[0005] The utility model is achieved through the following technical solutions:

[0006] A vapor aluminizing tool for an engine turbine blade includes a loading box, the loading box including:

[0007] Chassis for loading aluminizing raw materials;

[0008] Bottom net, placed on top of the chassis;

[0009] An outer box for loading aluminizing raw materials, the outer box being a ring-shaped structure with open ends at the top and bottom, and having mesh holes on the inside, and the outer box being placed on the outer edge of the bottom mesh; and

[0010] The inner box is used to load the aluminizing raw materials. The inner box is a ring-shaped structure with open ends at the upper and lower ends, and mesh holes are provided on the inner and outer sides. The inner box is placed at the center of the bottom net, and a placement area for blades is formed between the inner box and the outer box.

[0011] Optionally, the chassis includes several sub-disks with fan-shaped structures; the bottom net includes several sub-nets with fan-shaped structures; the outer box includes several outer sub-boxes with arc-shaped structures, and the inner box includes several inner sub-boxes with arc-shaped structures.

[0012] Optionally, two ends of the inner sub-box are provided with a plurality of through holes.

[0013] Optionally, the aluminizing tooling further includes a support frame, which includes several layers of support members and several outer support rods arranged at intervals along the up and down directions, and the several outer support rods are arranged at intervals along the circumferential direction of the support members and fixedly connected to the support members; the loading box is placed on each layer of support members.

[0014] Optionally, the support member has a hollow structure.

[0015] Optionally, the support frame further includes a central support rod, which is fixedly connected to the center of each layer of support members.

[0016] Optionally, the inner side of the outer box and the inner and outer sides of the inner box are both filter structures.

[0017] Optionally, the aluminizing tool further includes a plurality of measuring cups for loading aluminizing catalysts, and the measuring cups are placed in the placement area.

[0018] The technical solution of this utility model has at least the following advantages and beneficial effects: in the utility model, the chassis, outer box and inner box are all used to place aluminizing raw materials, and the blades are placed in the placement area between the outer box and the inner box, so that there is aluminizing raw materials under and on the sides of the blades, which facilitates the subsequent contact between the aluminum atmosphere and various surfaces of the blades, thereby improving the thickness and quality consistency of the aluminizing on various surfaces of the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a vapor phase aluminizing tooling for engine turbine blades provided by the present invention;

[0021] Figure 2 is a structural diagram of the support frame;

[0022] Figure 3 Schematic diagram of the structure of the loading box;

[0023] Figure 4 Schematic diagram of the chassis structure;

[0024] Figure 5 Schematic diagram of the structure of the bottom net;

[0025] Figure 6 Schematic diagram of the structure of the outer box;

[0026] Figure 7Schematic diagram of the structure of the inner box;

[0027] Icon: 100- loading box, 101- chassis, 102- bottom net, 103- outer box, 104- inner box, 200- support frame, 201- outer support rod, 202- support piece, 203- center support rod, 300- measuring cup. DETAILED DESCRIPTION

[0028] refer to Figure 3 A vapor aluminizing tool for engine turbine blades includes a loading box 100, which includes a chassis 101, a bottom net 102, an outer box 103 and an inner box 104.

[0029] The base tray 101, outer box 103, and inner box 104 are all used to load aluminizing raw materials (e.g., aluminum-iron alloy). The base tray 101 is a box-shaped structure with an open top. The bottom net 102 is placed on the top of the base tray 101, the outer box 103 is placed at the outer edge of the bottom net 102, and the inner box 104 is placed at the center of the bottom net 102. The blades (not shown) are placed in the storage area between the inner box 104 and the outer box 103. Furthermore, the aluminizing tooling also includes several measuring cups 300 for loading aluminizing catalyst. The measuring cups 300 are placed in the storage area. For example, three measuring cups 300 filled with catalyst are placed in the storage area, and the three measuring cups 300 are arranged in a circular array.

[0030] As can be seen from the above, the chassis 101, the outer box 103 and the inner box 104 are all used to place the aluminizing raw materials, and the blades are placed in the placement area between the outer box 103 and the inner box 104, so that there is aluminizing raw materials under and on the sides of the blades, which facilitates the subsequent contact between the aluminum atmosphere and various surfaces of the blades, thereby improving the thickness and quality consistency of the aluminizing on various surfaces of the blades.

[0031] The outer box 103 is an annular structure with open ends and mesh holes on the inside. The inner box 104 is also an annular structure with open ends and mesh holes on both the inside and outside. The inner box 104 is placed at the center of the bottom net 102. It is worth noting that the mesh holes on the inside of the outer box 103 and the inside and outside of the inner box 104 facilitate the passage of the aluminum atmosphere. Alternatively, the inside of the outer box 103 and the inside and outside of the inner box 104 can both be screen structures, with the mesh holes formed by the screen structure. In other embodiments, the inside of the outer box 103 and the inside and outside of the inner box 104 can also be plate-like structures, with a plurality of small holes provided in the plate-like structures to form the mesh holes.

[0032] refer to Figure 4-Figure 7In this embodiment, the chassis 101 includes several fan-shaped sub-discs, i.e., the sub-discs form the circular structure of the chassis 101; the bottom mesh 102 includes several fan-shaped sub-nets, i.e., the sub-nets form the circular structure of the bottom mesh 102; the outer box 103 includes several arc-shaped outer sub-boxes, i.e., the outer sub-boxes form the annular structure of the outer box 103; and the inner box 104 includes several arc-shaped inner sub-boxes, i.e., the inner sub-boxes form the annular structure of the inner box 104. Furthermore, a plurality of through-holes are provided at both ends of the inner sub-box. The form of the through-holes is not limited. For example, in this embodiment, the inner sub-box is composed of multiple rods, which are welded to the filter structures inside and outside the inner sub-box, forming the aforementioned through-holes between the rods. In other embodiments, the ends of the inner sub-box may also be plate-shaped structures, with a plurality of small holes provided in the plate-like structures to form the aforementioned through-holes.

[0033] It should be understood that each sub-tray, each outer sub-box and each inner sub-box can be taken in and out independently.

[0034] Based on the above, refer to Figure 1 and Figure 2 The aluminizing tooling also includes a support frame 200, which comprises a plurality of layers of support members 202 spaced apart in the vertical direction and a plurality of outer support rods 201. The outer support rods 201 are spaced apart along the circumference of the support members 202 and are fixedly connected to the support members 202. A loading box 100 is placed on each layer of support members 202. The support frame 200 further includes a central support rod 203, which is fixedly connected (e.g., welded) to the center of each layer of support members 202 to provide overall stability for the support frame 200.

[0035] It is worth noting that the support frame 200 allows for aluminizing of more blades at once. For example, in this embodiment, the support members 202 are arranged in three layers, allowing for the placement of three layers of the loading box 100. Of course, in other embodiments, more layers are possible. Furthermore, the base 101, outer box 103, and inner box 104 of the loading box 100 are designed as separate units, facilitating the loading and unloading of blades and aluminizing raw materials in layers.

[0036] The support member 202 has a hollow structure to reduce weight. The specific form of the hollow structure is not limited. For example, in this embodiment, the support member 202 is composed of a plurality of ring boxes and a plurality of star-shaped connecting rods, each of which is fixedly connected to each ring (e.g., welded). Of course, in other embodiments, the hollow structure can also be in other forms, such as a plate-like structure with a plurality of weight-reducing holes provided therein.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vapor aluminizing tool for engine turbine blades, characterized in that: Includes a carrying box, which includes: Chassis for loading aluminizing raw materials; Bottom net, placed on top of the chassis; An outer box for loading aluminizing raw materials, the outer box being a ring-shaped structure with open ends at the top and bottom, and having mesh holes on the inside, and the outer box being placed on the outer edge of the bottom mesh; and The inner box is used to load the aluminizing raw materials. The inner box is a ring-shaped structure with open ends at the upper and lower ends, and mesh holes are provided on the inner and outer sides. The inner box is placed at the center of the bottom net, and a placement area for blades is formed between the inner box and the outer box.

2. The vapor phase aluminizing tool for engine turbine blades according to claim 1, characterized in that: The chassis includes several sub-disks in a fan-shaped structure; the bottom net includes several sub-nets in a fan-shaped structure; the outer box includes several outer sub-boxes in an arc-shaped structure, and the inner box includes several inner sub-boxes in an arc-shaped structure.

3. The vapor phase aluminizing tool for engine turbine blades according to claim 2, characterized in that: Two ends of the inner sub-box are provided with a plurality of through holes.

4. The vapor aluminizing tool for engine turbine blades according to any one of claims 1 to 3, characterized in that: The aluminizing tooling also includes a support frame, which includes several layers of support members and several outer support rods arranged at intervals along the upper and lower directions. The several outer support rods are arranged at intervals along the circumferential direction of the support members and are fixedly connected to the support members; the loading box is placed on each layer of support members.

5. The vapor phase aluminizing tool for engine turbine blades according to claim 4, characterized in that: The support member has a hollow structure.

6. The vapor aluminizing tool for engine turbine blades according to claim 4, characterized in that: The support frame also includes a central support rod, which is fixedly connected to the center of each layer of support members.

7. The vapor aluminizing tool for engine turbine blades according to any one of claims 1 to 3, characterized in that: The inner side of the outer box and the inner and outer sides of the inner box are both filter structures.

8. The vapor aluminizing tool for engine turbine blades according to any one of claims 1 to 3, characterized in that: The aluminizing tool also includes a plurality of measuring cups for loading aluminizing catalysts, and the measuring cups are placed in the placement area.

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