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Magnetic ring casting, magnetic ring casting mold and magnetic ring casting device manufacturing method

A manufacturing method and magnetic ring technology, which are applied in the manufacture of inductors/transformers/magnets, magnets, magnetic objects, etc., can solve the problems of easy bump damage at the edges and corners of the magnetic ring, and achieve the effect of avoiding bump damage.

Inactive Publication Date: 2019-01-29
PINGGAO GRP +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a magnetic ring casting to solve the problem that the edges and corners of the magnetic ring are easily bumped and damaged in the prior art; the purpose of the present invention is also to provide a magnetic ring casting mold for making the magnetic ring casting and Manufacturing method of magnetic ring casting for making the magnetic ring casting

Method used

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  • Magnetic ring casting, magnetic ring casting mold and magnetic ring casting device manufacturing method
  • Magnetic ring casting, magnetic ring casting mold and magnetic ring casting device manufacturing method
  • Magnetic ring casting, magnetic ring casting mold and magnetic ring casting device manufacturing method

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Embodiment Construction

[0024] Examples of magnetic ring casting are figure 1 As shown: It includes a magnetic ring body composed of three magnetic rings 2 arranged in sequence along the up and down direction. The magnetic rings are made of ferrite materials. Two adjacent magnetic rings are separated by insulating gaskets 3. The insulating gasket The sheet 3 is adhesively connected to the two adjacent magnetic rings. The inner wall, outer wall, bottom and top of the magnetic ring body are poured with a casting body 1 with an integral structure with the magnetic ring body, wherein the casting body cast at the bottom of the magnetic ring body is provided with a positioning support column ( figure 1 not shown), the lower end of the positioning support column is flush with the lower end of the pouring body 1 . For the manufacturing process of the magnetic ring casting, please refer to the following magnetic ring casting mold and the manufacturing method of the magnetic ring casting.

[0025] In other e...

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Abstract

The invention relates to magnetic ring casting, a magnetic ring casting mold and a magnetic ring casting device manufacturing method. The magnetic ring casting mold includes a mold body, an annular molding cavity having a casting opening is formed in the mold body, and the bottom of the annular molding cavity is provided with at least two positioning holes in the circumference direction, and the positioning holes are used for positioning and insertion of corresponding positioning support columns. The magnetic ring casting mold is used for making the magnetic ring casting, casting materials fill the bottom of a magnetic ring body through gaps between the adjacent positioning support columns and fills the inner side and outer side of the magnetic ring body through the gap between the magnetic ring body and the annular molding cavity, and finally casting bodies wrapping the inner wall, the outer wall and the bottom of the magnetic ring body and the corners of the top of the magnetic ringbody are formed. The casting bodies protect the magnetic ring body, and the problems of collision and damage of the magnetic ring body in the installation and use processes are avoided.

Description

technical field [0001] The invention relates to a magnetic ring casting, a magnetic ring casting mold and a manufacturing method for the magnetic ring casting. Background technique [0002] With the continuous increase of GIS operating voltage, the influence of fast transient overvoltage (VFTO) is increasing, which seriously threatens the safe operation of GIS and power system. At present, the main measure to suppress VFTO is to install parallel resistors inside the isolation switch, thereby consuming VFTO energy, reducing its amplitude and steepness, and speeding up the attenuation speed of traveling waves. However, the structure of parallel resistors is complex, the failure rate is high, and the cost is expensive. Using ferrite magnetic ring to suppress VFTO is one of the main directions of current research. As disclosed in the Chinese patent with the application name "A Leakage Resistor System for Eliminating GISVFTO Residual Charge" and publication number CN102832562A, o...

Claims

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Application Information

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IPC IPC(8): H01F7/00H01F41/02B29C39/10B29C39/26
CPCB29C39/10B29C39/26H01F7/00H01F41/02
Inventor 罗军袁端鹏林生军娄金钢韩丽娟张柳丽李宝增董涵
Owner PINGGAO GRP
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