Charging box for magnetic material sintering

Abstract

A charging box for magnetic material sintering comprises a box body with an opening in the upper end, a containing cavity is formed in the box body, and a through exhaust structure is arranged at the bottom of the containing cavity. Compared with the prior art, through the design of the exhaust structure, gas generated in the sintering process can be effectively exhausted, so that it is guaranteed that the internal structure of a magnetic material product is more compact and uniform, and the mechanical performance and the electromagnetic performance of a final product are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging boxes for sintering magnetic materials, and in particular relates to a charging box for sintering magnetic materials. Background Art

[0002] Due to their unique physical properties, magnetic materials are widely used in fields such as electronics, communications, and automotive manufacturing. To produce high-performance magnetic products, sintering is an essential step in the production process. Sintering involves heating powder or small particles at a temperature below the material's melting point, allowing atomic diffusion and recrystallization to form a solid block with a certain strength and density. During this process, effectively controlling the sintering environment is a key factor in determining the quality of the final product.

[0003] Traditional charging boxes for sintering magnetic materials mostly adopt a simple closed design, that is, a container with an open top formed by a bottom plate and four side walls. Although this structure can meet basic loading requirements, it has some shortcomings in actual application, especially regarding gas discharge. Because the sintering process is carried out under high temperature conditions, the chemical reactions and physical changes between the raw materials will produce a large amount of gas. If these gases are not discharged in a timely and effective manner, the accumulated gas will form cavities or bubbles inside the material, which not only reduces the density of the product, but may also cause a decrease in mechanical strength. In addition, uneven gas distribution will cause density differences in different parts of the sintered product, which in turn affects the consistency and reliability of the electromagnetic performance.

[0004] Therefore, based on some of the above situations in the prior art, this application has been further designed and improved. Utility Model Content

[0005] In order to solve the above technical problems, the present invention solves them through the following technical solutions.

[0006] A charging box for sintering magnetic materials comprises a box body with an open top, a placement cavity within the box body, and a through-hole exhaust structure at the bottom of the cavity. The exhaust structure is designed to effectively exhaust gases generated during the sintering process, thereby ensuring a denser and more uniform internal structure of the magnetic material product and improving the mechanical and electromagnetic properties of the final product.

[0007] As a preferred technical solution, the exhaust structure is a fork-shaped slit that passes through the bottom of the box body.

[0008] As a preferred technical solution, the exhaust structure is uniformly distributed strip slits or through holes that pass through the bottom of the box body.

[0009] As a preferred technical solution, the box body is welded together from a bottom plate and four side panels. The tops of the side panels are bent toward the placement cavity to form inward-facing edges, and the inward-facing edges of adjacent side panels are welded together. This design not only enhances the overall structural stability of the charging box, but also further enhances the sealing effect by forming an inward-bending edge at the top, preventing external impurities from entering and affecting the sintering effect. In addition, the inward-facing edges between adjacent side panels also simplify the manufacturing process.

[0010] As a preferred technical solution, the inner buckle edge is provided with a stepped edge, and the stepped edges of the four side panels cooperate to form a matching groove. The matching groove facilitates the stacking of the charging boxes and strengthens the sealing of the individual charging boxes, preventing external impurities from entering the placement cavity through the gaps between the charging boxes.

[0011] As a preferred technical solution, the box body is made of 304 or 310S stainless steel. This material has excellent corrosion resistance and high-temperature oxidation resistance, and can withstand the high-temperature environment required for sintering magnetic materials without deformation or damage. This extends the service life of the charging box while ensuring production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the charging box.

[0013] Figure 2 It is a partial cross-sectional view of the charging box.

[0014] Figure 3 A top view of the charging box with a fork-shaped slot exhaust structure.

[0015] Figure 4 A top view of a charging box with a strip-slit exhaust structure.

[0016] Figure 5 A top view of a charging box with a through-hole exhaust structure.

[0017] The following is a description of the symbols in the drawings of the specification:

[0018] 1. Bottom plate; 2. Side plate; 3. Exhaust structure; 4. Inward buckle edge; 5. Step edge; 6. Matching groove. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0020] In the following embodiments, the same or similar numbers throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and therefore cannot be understood as limiting the present invention. In addition, the terms: first, second, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present invention, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Reference Figure 1 and Figure 2 A charging box for sintering magnetic materials includes a box body with an open top, a placement cavity within the box body, and a through-hole exhaust structure 3 at the bottom of the placement cavity. The exhaust structure 3 is designed to effectively exhaust gases generated during the sintering process, thereby ensuring a denser and more uniform internal structure of the magnetic material product and improving the mechanical and electromagnetic properties of the final product.

[0023] Among them, reference Figures 3 to 5 The exhaust structure 3 can be a fork-shaped slit running through the bottom of the box, or evenly distributed strip-shaped slits or through-holes. When the magnetic material is regularly shaped and neatly arranged, evenly distributed strip-shaped slits are a more suitable exhaust channel. However, if the material is irregularly shaped or requires flexible placement, fork-shaped slits are a better choice due to their adaptability and adjustability. Not only does the fork-shaped slit effectively guide gas exhaust, but its bifurcated design also helps evenly disperse the airflow, reducing localized pressure buildup.

[0024] Furthermore, the design of the vent structure 3 should also take into account the thermal expansion characteristics of the magnetic material and its temperature fluctuations during operation. For magnetic materials with large thermal expansion coefficients, appropriate dimensional margins should be added when designing the vent slits or holes to prevent structural stress concentration caused by material volume changes. Furthermore, it is necessary to ensure that these slits or holes do not affect the overall sealing performance of the box and the magnetic shielding effect.

[0025] In the present application, the box body is made of 304 or 310S stainless steel. This type of material has good corrosion resistance and high-temperature oxidation resistance, and can withstand the high-temperature environment required for the sintering of magnetic materials without being easily deformed or damaged, which extends the service life of the charging box while also ensuring production safety. Specifically, the box body is welded by a bottom plate 1 and four side panels 2, and the top of the side panel 2 is bent toward the placement cavity to form an inner buckle edge 4, and the inner buckle edges 4 of adjacent side panels 2 are welded together. Such a design not only strengthens the overall structural stability of the charging box, but also further increases the sealing by the inner buckle edge 4 formed by the inward bending of the top, preventing external impurities from entering and affecting the sintering effect; in addition, the adjacent side panels 2 are welded together by the inner buckle edge 4, which also simplifies the manufacturing process.

[0026] To facilitate handling and stacking, a stepped edge 5 is provided on the inner buckle edge 4, and the stepped edges 5 of the four side panels 2 cooperate to form a matching groove 6. The matching groove 6 can facilitate the stacking of the charging boxes, and can strengthen the sealing of a single charging box, preventing external impurities from entering the placement cavity through the gaps between the charging boxes. The smaller charging boxes are stacked by cooperating with the matching groove 6 of the larger charging boxes. When charging boxes of different sizes are stacked, the stepped edge 5 not only provides a physical support point, but also ensures that the weight of the upper charging box is evenly distributed to the lower charging box, thereby reducing the risk of collapse due to the shift of the center of gravity.

[0027] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention is based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field fall within the protection scope of the present invention.

Claims

1. A charging box for sintering magnetic materials, characterized in that: The box comprises a box body with an upper opening, a placement cavity is provided in the box body, and a through exhaust structure (3) is provided at the bottom of the placement cavity; The box body is formed by welding a bottom plate (1) and four side plates (2); the top of the side plate (2) is bent toward the placement cavity to form an inner buckle edge (4); the inner buckle edges (4) of adjacent side plates (2) are welded together; a stepped edge (5) is provided on the inner buckle edge (4); the stepped edges (5) of the four side plates (2) cooperate to form a matching groove (6).

2. A charging box for sintering magnetic materials according to claim 1, characterized in that: The exhaust structure (3) is a fork-shaped slit that passes through the bottom of the box body.

3. A charging box for sintering magnetic materials according to claim 1, characterized in that: The exhaust structure (3) is a strip-shaped slit or through hole that is evenly distributed and passes through the bottom of the box body.

4. A charging box for sintering magnetic materials according to claim 1, characterized in that: The box body is made of 304 or 310S stainless steel.

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