Double-layer sintering device for sinter-hardened product

Abstract

This utility model discloses a double-layer sintering device for sintering hardened products, relating to the field of sintering hardening technology. It includes: at least two sets of sintering mesh trays arranged vertically, and mesh tray gaskets disposed between adjacent sets of sintering mesh trays. Each sintering mesh tray has a honeycomb-shaped ventilation structure; the mesh tray gaskets have grid-shaped ventilation holes. Beneficial effects: By using a sintering mesh tray combining a support frame and a support mesh, deformation during the sintering process is reduced, ensuring stable support for the upper and lower layers of products to be sintered. The built-in honeycomb-shaped ventilation structure significantly improves ventilation performance, ensuring efficient airflow between the upper and lower layers and providing sufficient cooling for the lower layer. The grid-shaped ventilation hole design of the mesh tray gaskets optimizes interlayer ventilation, achieving stable double-layer sintering of the hardened products. Material densification and surface hardening can be completed in a single sintering process, shortening the production cycle and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sintering and hardening technology, specifically to a double-layer sintering device for sintering and hardening products. Background Technology

[0002] In the field of sintering and hardening product manufacturing, products need to undergo sintering and hardening treatment. During the sintering process, rapid cooling is achieved by blowing with an air knife to realize the martensitic phase transformation, thereby eliminating the need for a secondary quenching step.

[0003] Currently, the industry uses single-layer sintering for products requiring sintering hardening. This is because if double-layer sintering is used, the lower layer will have insufficient hardness due to limited cooling rate, failing to meet customer requirements. Single-layer sintering also suffers from low production capacity. To meet production demands, additional sintering furnaces are often needed, increasing not only equipment investment costs but also energy consumption and overall production costs.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in related technologies, the purpose of this utility model is to propose a double-layer sintering device for sintered hardening products, which aims to solve the problems of insufficient hardness of the lower layer due to the limitation of cooling rate when using double-layer sintering for sintered hardening products in the prior art, as well as the problems of low production capacity, large equipment investment and high production cost of single-layer sintering.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A double-layer sintering apparatus for sintering hardened products includes: at least two sets of sintering mesh trays arranged vertically, and a mesh tray spacer disposed between two adjacent sets of the sintering mesh trays;

[0008] The sintering mesh tray is equipped with a honeycomb ventilation structure.

[0009] The mesh disc pad has mesh-like ventilation holes.

[0010] Furthermore, the sintering mesh tray includes: a support frame, a placement groove provided in the support frame, a support mesh fixedly laid in the placement groove, and the honeycomb ventilation structure disposed within the support mesh.

[0011] Furthermore, the mesh disk pad has a wavy structure.

[0012] Furthermore, the height of the wave crest of the mesh disk pad is 15-20mm, and the spacing between the wave crests is 100-150mm.

[0013] Furthermore, the mesh-like ventilation holes are evenly distributed, and the density of ventilation holes in the edge area is greater than that in the center area.

[0014] Furthermore, the sintering mesh disk and the mesh disk gasket are both made of stainless steel.

[0015] The beneficial effects of this utility model are:

[0016] This invention utilizes a sintering mesh tray combining a support frame and a support mesh. This not only reduces deformation during sintering and ensures stable support for the upper and lower layers of products to be sintered, but its built-in honeycomb ventilation structure also significantly improves ventilation performance, ensuring efficient airflow between the upper and lower layers and providing sufficient cooling for the lower layer. Furthermore, the mesh-like ventilation hole design of the mesh tray gasket, combined with a higher ventilation hole density in the edge area, further optimizes interlayer ventilation, achieving stable double-layer sintering of the hardened product. Material densification and surface hardening can be completed in a single sintering process, shortening the production cycle, improving production efficiency, and eliminating the need for additional sintering furnace equipment, thus reducing equipment investment and energy consumption. This technical solution can also be applied to the production of other similar hardened products, helping to enhance the core competitiveness of enterprises and bringing long-term economic benefits and production advantages.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the sintering mesh structure of the double-layer sintering device for sintering hardened products according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the mesh tray gasket structure of the double-layer sintering device for sintering and hardening products according to an embodiment of the present utility model;

[0022] Figure 3 This is a stacked side view of a double-layer sintering apparatus for sintering and hardening products according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Sintered mesh tray; 2. Mesh tray gasket; 3. Mesh-shaped ventilation holes; 4. Honeycomb ventilation structure;

[0025] 11. Support frame; 12. Storage groove; 13. Support net. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0027] According to an embodiment of the present invention, a double-layer sintering apparatus for sintering hardened products is provided.

[0028] like Figures 1-3 As shown, a double-layer sintering device for sintering hardened products includes: at least two sets of sintering mesh trays 1 arranged vertically, and mesh tray pads 2 disposed between two adjacent sets of sintering mesh trays 1, wherein;

[0029] like Figure 1 As shown, the sintering mesh tray 1 is provided with a honeycomb ventilation structure 4;

[0030] The sintering mesh tray 1 includes: a support frame 11, a storage groove 12 inside the support frame 11, a support mesh 13 fixedly laid inside the storage groove 12, and a honeycomb ventilation structure 4 set inside the support mesh 13.

[0031] like Figure 2 As shown, the mesh gasket 2 has mesh-like ventilation holes 3 inside.

[0032] Among them, the grid-shaped ventilation holes 3 are evenly distributed, and the density of ventilation holes in the edge area is greater than that in the center area.

[0033] This technical solution employs a sintering mesh tray 1 composed of a support frame 11 and a support mesh 13, which reduces deformation during the sintering process and stably supports the upper and lower layers of products to be sintered. Simultaneously, the honeycomb ventilation structure 4 provides excellent ventilation performance and is resistant to deformation, ensuring effective ventilation between the upper and lower layers and guaranteeing the cooling rate of the lower layer.

[0034] In addition, the mesh-like ventilation holes 3 of the mesh pad 2 can not only effectively reduce deformation and ensure the stability of the overall structure, but also ensure that the ventilation performance can ensure that the lower product obtains a sufficient cooling rate during the sintering and hardening process, so as to ensure the ventilation effect between the upper and lower layers.

[0035] In addition, in application, the sintering mesh disk 1 and the mesh disk pad 2 are made of stainless steel.

[0036] This technical solution, by using a sintering mesh tray 1 and mesh tray gasket 2 made of stainless steel, not only meets the weight bearing requirements of double-layer sintering, but also has good high temperature resistance and deformation resistance, ensuring the reliability of the device in long-term use.

[0037] In addition, the mesh disk pad 2 has a wavy structure. The height of the crests of the mesh disk pad 2 is 15-20mm, and the spacing between the crests is 100-150mm.

[0038] This technical solution uses a wave-shaped mesh pad 2, which, while providing good support, can effectively reduce its own deformation and ensure the stability of the overall structure.

[0039] Using the above-described scheme, in the use of the double-layer sintering apparatus for sintered hardened products, the products to be sintered are placed on the upper and lower sintering mesh trays 1 respectively, with an optimized mesh tray spacer 2 placed between the two layers. Because the sintering mesh tray 1 adopts a new structural design and uses specific load-bearing materials, deformation can be effectively reduced, ensuring the stability of the overall structure. Simultaneously, the excellent ventilation performance of the mesh tray spacer 2 ensures that both the upper and lower layers of products receive sufficient cooling rates during the sintering process when the air knife is used for blowing, allowing the lower layer product to achieve a full martensitic phase transformation and reach the required hardness. By optimizing the sintering parameters, interlayer differences are further reduced, achieving stable production of double-layer sintering.

[0040] In summary, the following effects can be achieved by utilizing the above-described technical solution of this utility model:

[0041] This invention utilizes a sintering mesh tray combining a support frame and a support mesh. This not only reduces deformation during sintering and ensures stable support for the upper and lower layers of products to be sintered, but its built-in honeycomb ventilation structure also significantly improves ventilation performance, ensuring efficient airflow between the upper and lower layers and providing sufficient cooling for the lower layer. Furthermore, the mesh-like ventilation hole design of the mesh tray gasket, combined with a higher ventilation hole density in the edge area, further optimizes interlayer ventilation, achieving stable double-layer sintering of the hardened product. Material densification and surface hardening can be completed in a single sintering process, shortening the production cycle, improving production efficiency, and eliminating the need for additional sintering furnace equipment, thus reducing equipment investment and energy consumption. This technical solution can also be applied to the production of other similar hardened products, helping to enhance the core competitiveness of enterprises and bringing long-term economic benefits and production advantages.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-layer sintering apparatus for sintering hardened products, characterized in that, include: At least two sets of sintering mesh disks (1) arranged vertically, and mesh disk spacers (2) disposed between two adjacent sets of the sintering mesh disks (1); The sintering mesh tray (1) is provided with a honeycomb ventilation structure (4). The mesh gasket (2) has mesh-like ventilation holes (3).

2. The double-layer sintering apparatus for sintering hardened products according to claim 1, characterized in that, The sintering mesh tray (1) includes: a support frame (11), a storage groove (12) is provided in the support frame (11), a support mesh (13) is fixedly laid in the storage groove (12), and the honeycomb ventilation structure (4) is set in the support mesh (13).

3. The double-layer sintering apparatus for sintering hardened products according to claim 1, characterized in that, The mesh disk pad (2) has a wavy structure.

4. The double-layer sintering apparatus for sintering hardened products according to claim 3, characterized in that, The height of the crest of the mesh disc pad (2) is 15-20mm, and the spacing between the crests is 100-150mm.

5. The double-layer sintering apparatus for sintering hardened products according to claim 1, characterized in that, The mesh-like ventilation holes (3) are evenly distributed, and the density of ventilation holes in the edge area is greater than that in the center area.

6. The double-layer sintering apparatus for sintering hardened products according to claim 1, characterized in that, The sintering mesh disk (1) and the mesh disk pad (2) are made of stainless steel.

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