A material basket device for heat-treated workpieces

Abstract

This utility model discloses a material basket device for heat-treated workpieces, including a basket body. A flip-type lifting ring structure is fixedly installed on the upper part of the left and right ends of the inner wall of the basket body. The flip-type lifting ring structure includes a support arm, a connecting shaft, a lifting rod, an arc-shaped chamfer, and the lifting ring body. A transition layer is provided on the surface of the substrate in the basket body, and a ceramic coating is provided on the outer wall of the transition layer. A grid-like reinforcing rib is embedded within the ceramic coating. Each set of flip-type lifting ring structures contains two sets of support arms. This utility model's material basket device for heat-treated workpieces avoids stacking interference through the flip-type lifting ring structure and employs a composite protection system of NiCrAlY transition layer + Al2O3-ZrO2 ceramic coating + grid-like reinforcing ribs to improve the high-temperature resistance, thermal shock resistance, and structural strength of the basket.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment workpiece material baskets, specifically a material basket device for heat treatment workpieces. Background Technology

[0002] In the metal heat treatment process, the workpiece usually needs to be placed in a basket to facilitate heating, cooling and other processing operations.

[0003] Existing heat treatment material baskets are typically made of high-temperature resistant metal materials. However, due to prolonged use in high-temperature environments, these baskets are prone to oxidation, deformation, and even cracking, affecting their service life. Furthermore, the lifting rings of traditional material baskets are mostly fixed structures, with the rings fixed to the top of the basket. This can easily cause interference during handling or stacking, and the rings are also prone to deformation under high-temperature conditions, posing a safety hazard.

[0004] Therefore, we propose a material basket device for heat-treated workpieces. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a material basket device for heat-treated workpieces. It avoids stacking interference through a flip-type lifting ring structure and adopts a composite protection system of NiCrAlY transition layer + Al2O3-ZrO2 ceramic coating + grid-like reinforcing ribs to improve the high temperature resistance, thermal shock resistance and structural strength of the material basket, which can effectively solve the problems in the background technology.

[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a material basket device for heat-treated workpieces, comprising a material basket body, wherein a flip-type lifting ring structure is fixedly installed on the upper part of the left and right ends of the inner wall of the material basket body, the flip-type lifting ring structure comprising a support arm, a connecting shaft, a lifting rod, an arc-shaped chamfer and a lifting ring body, and a transition layer is provided on the surface of the base in the material basket body, the outer wall of the transition layer is provided with a ceramic coating, and the ceramic coating is embedded with a grid-like reinforcing rib, wherein the number of support arms in a set of the flip-type lifting ring structure is two sets.

[0007] Preferably, in the two sets of the flip-type lifting ring structure, the support arms are fixed to the upper part of the left and right ends of the inner wall of the basket body, and the connecting shaft is fixed between the two sets of the support arms.

[0008] Preferably, the lower end of the lifting rod is provided with a through hole, the lifting rod is rotatably sleeved on the outer wall of the connecting shaft through the hole, the lifting ring body is fixed on the outer surface of the end of the lifting rod away from the connecting shaft, and the arc-shaped chamfer is provided on the outer surface of the end of the lifting rod away from the lifting ring body.

[0009] Preferably, the transition layer is a NiCrAlY alloy layer with a thickness of 50-100 μm.

[0010] Preferably, the ceramic coating is an Al2O3-ZrO2 composite coating with a thickness of 0.3-0.8 mm, covering the surface of the transition layer.

[0011] Preferably, the grid-like reinforcing ribs are embedded inside the ceramic coating, and the grid-like reinforcing ribs are Ni-based high-temperature alloy wires with a diameter of 0.1-0.3 mm and a grid spacing of 5-10 mm.

[0012] (III) Beneficial Effects Compared with the prior art, the present invention provides a material basket device for heat-treated workpieces, which has the following beneficial effects: 1. The heat treatment workpiece material basket device effectively alleviates the difference in thermal expansion coefficient between the metal substrate and the ceramic coating by setting a transition layer on the substrate surface and using NiCrAlY alloy as the transition material, thereby improving the adhesion and thermal shock resistance of the coating, avoiding the problem of coating peeling or cracking, and thus extending the service life of the material basket.

[0013] 2. The heat-treated workpiece material basket device has a grid-like reinforcing rib embedded in the ceramic coating. It utilizes the mechanical strength and high-temperature resistance of Ni-based high-temperature alloy wire to form a stable support structure, effectively dispersing external stress and preventing the coating from cracking or peeling during handling or in high-temperature environments.

[0014] 3. This heat-treated workpiece material basket device adopts a flip-type lifting ring structure. Through the coordinated design of the support arm, connecting shaft and lifting rod, the lifting ring can be flipped flexibly to avoid interference problems when stacking. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a heat-treated workpiece material basket device according to the present invention.

[0016] Figure 2 This is a schematic diagram of the flip-type lifting ring structure in a heat-treated workpiece material basket device of this utility model.

[0017] Figure 3 This is a cross-sectional view of the substrate coating layer in a heat-treated workpiece material basket device according to the present invention.

[0018] Figure 4 This is a partial cross-sectional view of the ceramic coating in a heat-treated workpiece basket device according to this utility model.

[0019] In the diagram: 1. Material basket body; 2. Flip-type lifting ring structure; 3. Support arm; 4. Connecting shaft; 5. Lifting rod; 6. Chamfered corner; 7. Lifting ring body; 8. Substrate; 9. Transition layer; 10. Ceramic coating; 11. Grid-like reinforcing ribs. Detailed Implementation

[0020] like Figure 1-4 As shown, this utility model provides a material basket device for heat-treated workpieces, including a basket body 1, a flip-type lifting ring structure 2, and a composite coating structure. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Material basket body structure The main body 1 of the material basket is made of high-temperature resistant alloy steel, and two sets of flip-type lifting ring structures 2 are symmetrically welded to the upper part of the left and right ends of its inner wall. A transition layer 9 and a ceramic coating 10 are formed sequentially on the surface of the substrate 8. The transition layer 9 is a NiCrAlY alloy layer with a thickness of 80μm (composition weight percentage: Ni-22Cr-10Al-1Y), and the ceramic coating 10 is a composite coating of Al2O3-40%ZrO2 (volume fraction) with a thickness of 0.5mm.

[0022] Implementation of flip-type lifting ring structure The specific implementation of the flip-type lifting ring structure 2 is as follows: Figure 1-2 As shown: Two sets of support arms 3 are vertically welded to the inner wall of the basket body 1; The connecting shaft 4 is made of GH4169 high-temperature alloy rod and is fixed between the two sets of support arms 3. A through hole of a certain diameter is opened at the lower end of the lifting rod 5 to form a clearance fit with the connecting shaft 4 (fit tolerance H9 / d9), so that the lifting rod 5 can rotate freely around the shaft; The lifting ring body 7 is welded to the top of the lifting rod 5; The bottom of the lifting rod 5 is machined with an arc-shaped chamfer 6 to avoid interference with the inner wall of the material basket.

[0023] Implementation of composite coating structure The layered structure of the composite coating is as follows Figure 3-4 As shown: 1. Transition layer 9 is formed by three-layer stepped spraying: First layer (contact substrate): 50μm thick NiCrAlY + 20% NiCo bonding layer; Middle layer: 30μm thick pure NiCrAlY; Outer layer: 20μm thick NiCrAlY + 5% Al2O3 transition layer.

[0024] 2. The ceramic coating 10 is prepared using a plasma spraying process.

[0025] 3. Implementation method of the grid-like reinforcing ribs: NiCr high-temperature alloy wires are pre-laid on the surface of transition layer 9; the alloy wire mesh is fused into the surface of transition layer using laser micro-melting process; finally, a ceramic coating 10 is sprayed to completely cover the mesh structure, forming a mechanical interlock.

[0026] Work process In use, the hooks of the hoisting equipment engage with the lifting rings 7 on both sides, and the lifting rod 5 automatically adjusts to a vertical position under gravity. When the material baskets are stacked, the lifting rod 5 can be flipped inward to fit against the inner wall of the basket, saving space. During the heat treatment process, the ceramic coating 10 and the reinforcing ribs 11 work together to effectively inhibit the propagation of thermal stress cracks.

[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A material basket device for heat-treated workpieces, comprising a material basket body (1), characterized in that: The upper part of the left and right ends of the inner wall of the material basket body (1) is fixedly installed with a flip-type lifting ring structure (2). The flip-type lifting ring structure (2) includes a support arm (3), a connecting shaft (4), a lifting rod (5), an arc chamfer (6) and a lifting ring body (7). The surface of the base (8) in the material basket body (1) is provided with a transition layer (9). The outer wall of the transition layer (9) is provided with a ceramic coating (10). The ceramic coating (10) is embedded with a grid-like reinforcing rib (11). The number of support arms (3) in a set of flip-type lifting ring structures (2) is two sets.

2. The material basket device for heat-treated workpieces according to claim 1, characterized in that: In the two sets of the flip-type lifting ring structure (2), the support arm (3) is fixed on the upper part of the left and right ends of the inner wall of the basket body (1), and the connecting shaft (4) is fixed between the two sets of the support arm (3).

3. The material basket device for heat-treated workpieces according to claim 2, characterized in that: The lower end of the rod (5) is provided with a through hole. The rod (5) is rotatably sleeved on the outer wall of the connecting shaft (4) through the hole. The lifting ring body (7) is fixed on the outer surface of the end of the rod (5) away from the connecting shaft (4). The arc chamfer (6) is provided on the outer surface of the end of the rod (5) away from the lifting ring body (7).

4. The material basket device for heat-treated workpieces according to claim 3, characterized in that: The transition layer (9) is a NiCrAlY alloy layer with a thickness of 50-100μm.

5. The material basket device for heat-treated workpieces according to claim 4, characterized in that: The ceramic coating (10) is an Al2O3-ZrO2 composite coating with a thickness of 0.3-0.8 mm, covering the surface of the transition layer (9).

6. The material basket device for heat-treated workpieces according to claim 5, characterized in that: The grid-like reinforcing ribs (11) are embedded inside the ceramic coating (10). The grid-like reinforcing ribs (11) are Ni-based high-temperature alloy wires with a diameter of 0.1-0.3 mm and a grid spacing of 5-10 mm.

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