CN220456240U

CN220456240U - Tool for preventing deformation of bar-shaped magnetic core during sintering

Info

Publication number: CN220456240U
Application number: CN202321599159.0U
Authority: CN
Inventors: 孙瑞昕; 刘怀民; 胡朋飞; 刘娜; 张静
Original assignee: Beijing Seven Star Flight Electronic Co ltd
Current assignee: Beijing Seven Star Flight Electronic Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-02-06
Anticipated expiration: 2033-06-21

Abstract

The utility model relates to a tool for preventing a bar-shaped magnetic core from deforming during sintering, which comprises: the body is cylindrical, and is provided with a through hole for placing the bar-shaped magnetic core along the axial direction. In use, the rod-shaped magnetic core can be placed in the through hole inside the body for sintering. According to the tooling for preventing the deformation of the rod-shaped magnetic core during sintering, the green product of the rod-shaped magnetic core is placed in the through hole in the body, so that the deformation of the rod-shaped magnetic core during sintering can be prevented, the performance of the rod-shaped magnetic core is ensured, and the sintering qualification rate of the rod-shaped magnetic core product is also improved.

Description

Tool for preventing deformation of bar-shaped magnetic core during sintering

Technical Field

The utility model relates to the technical field of magnetic core production equipment, in particular to a tool for preventing a rod-shaped magnetic core from deforming during sintering.

Background

The sintering process is a key process for producing soft magnetic ferrite, and aims to heat and adhere ferrite powder formed by compression, and form solid solution into a whole so as to achieve the required electric, magnetic and mechanical physical properties. The sintering process of ferrite is extremely complex, and the sintering process is accompanied by shrinkage and densification of the blank in addition to substitution and valence change between ionic bonds at high temperature.

The green core product after press forming is called a green core product, and the existing green core product does not have a proper container when being sintered, and is directly placed on a setter plate for sintering, so that the green core product can deform after being sintered, the performance is reduced, and the qualification rate of the core product is finally affected.

It is therefore desirable to provide a tooling for preventing the deformation of the bar core during sintering.

Disclosure of Invention

First, the technical problem to be solved

In view of the above-mentioned drawbacks and shortcomings of the prior art, the present utility model provides a tool for preventing a bar-shaped magnetic core from deforming during sintering, which solves the technical problem that the existing bar-shaped magnetic core is easy to deform during sintering.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

the embodiment of the utility model provides a tool for preventing a bar-shaped magnetic core from deforming during sintering, which comprises the following components: the body is cylindrical, and is provided with a through hole for placing the bar-shaped magnetic core along the axial direction.

Optionally, the body is a ceramic sleeve.

Optionally, the ceramic sleeve has a length of 200-260mm.

Optionally, the ceramic sleeve has a diameter of 40-80mm.

Optionally, the ceramic sleeve has a wall thickness of 3-4mm.

(III) beneficial effects

The beneficial effects of the utility model are as follows: compared with the prior art, the tool for preventing the deformation of the rod-shaped magnetic core during sintering can prevent the deformation of the rod-shaped magnetic core during sintering by placing the green body product of the rod-shaped magnetic core in the through hole in the body, thereby ensuring the performance of the rod-shaped magnetic core and improving the sintering qualification rate of the rod-shaped magnetic core product.

Drawings

FIG. 1 is a schematic front view of a tooling for preventing deformation of a bar-shaped magnetic core during sintering according to the present utility model;

fig. 2 is a schematic side view of the tooling for preventing the deformation of the bar-shaped magnetic core during sintering according to the present utility model.

[ reference numerals description ]

1: a body;

2: and a through hole.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", "left", "right", "front", "rear", and like directional terms refer to the orientation of fig. 1.

As shown in fig. 1 and 2, fig. 1 shows a schematic front view of the tool for preventing deformation of a bar-shaped magnetic core at the time of sintering of the present embodiment, and fig. 2 shows a schematic side view of the tool for preventing deformation of a bar-shaped magnetic core at the time of sintering of the present embodiment.

The frock for preventing stick shape magnetic core from taking place deformation when sintering of this embodiment includes: the body 1, the body 1 is cylindric, and has offered the through-hole 2 that is used for placing the bar core along the axial.

In this embodiment, the body 1 is a ceramic sleeve having a length of 200-260mm, a diameter of 40-80mm and a wall thickness of 3-4mm.

In the use process, the bar-shaped magnetic core green body product is placed in a tubular tool made of a high-temperature-resistant ceramic material for sintering, so that the sintered product cannot deform, the product performance is ensured, and the qualification rate of the product is also improved.

The utility model has the advantages that the product is not deformed after sintering by placing the bar-shaped magnetic core green body product in a tubular tool made of a high-temperature-resistant ceramic material, thereby ensuring the product performance and improving the qualification rate of the product.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims

1. A frock for preventing stick shape magnetic core takes place deformation when sintering, its characterized in that: comprising the following steps: the magnetic core comprises a body (1), wherein the body (1) is cylindrical, and a through hole (2) for placing the rod-shaped magnetic core is formed along the axial direction.

2. A tooling for preventing deformation of a bar core during sintering as set forth in claim 1, wherein: the body (1) is a ceramic sleeve.

3. A tooling for preventing deformation of a bar core during sintering as set forth in claim 2, wherein: the length of the ceramic sleeve is 200-260mm.

4. A tooling for preventing deformation of a bar core during sintering as set forth in claim 2, wherein: the diameter of the ceramic sleeve is 40-80mm.

5. A tooling for preventing deformation of a bar core during sintering as set forth in claim 4, wherein: the wall thickness of the ceramic sleeve is 3-4mm.