KR930023716A

KR930023716A - Head core, magnet and processing method of gas leakage auto breaker

Info

Publication number: KR930023716A
Application number: KR1019920009338A
Authority: KR
Inventors: 이규상
Original assignee: 이규상; 동아콘트롤 주식회사
Priority date: 1992-05-29
Filing date: 1992-05-29
Publication date: 1993-12-21

Abstract

본 발명은 가스누설 자동차단기의 헤드코아, 마그네트 및 그 가공방법에 관한 것이다.The present invention relates to a head core, a magnet and a processing method of the gas leakage auto breaker.

본 발명은 가스누설 자동차단기를 구성하는 마그네트와 헤드 코아의 표면거칠기 값인 Rz를 0.83㎛~0.844㎛로 하고, R_A를 0.070㎛~0.075㎛로하며 Rt를 1.05㎛~1.09㎛로 한 값을 갖도록 하고, 이와같은 조건의 표면거칠기 값을 갖기 위하여 이에따른 가공방법은 통상의 랩핑(Lapping)가공을 함에 있어, 입도 400＃, 평규크기 40+2.1㎛, 최대경64㎛의 조건을 갖춘 랩제(Lapping Powder)를 사용하도록 한 것이다. 따라서 본 발명은 상기의 헤드코아와 마그네트가 80㎃의 기전력과 2초내의 조건으로 흡착효과를 얻게됨은 물론 10㎃에서 다시 이탈될 수 있는 효과를 갖게되는 특징으로 지닌 것이다.In the present invention, the surface roughness of the magnet and the head core constituting the gas leakage breaker is set to 0.83 μm to 0.844 μm, R _A is 0.070 μm to 0.075 μm, and Rt is 1.05 μm to 1.09 μm. In order to have a surface roughness value of such a condition, the processing method according to this is a lapping powder having a condition of a particle size of 400 ＃, a normal size of 40 + 2.1 μm, and a maximum diameter of 64 μm in lapping. ). Therefore, the present invention is characterized in that the head core and the magnet have the effect of being able to be detached again at 10 kW as well as to obtain the adsorption effect under the condition of electromotive force of 80 kW and within 2 seconds.

Description

Head core, magnet and processing method of gas leakage auto breaker

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 제1도에서 도시된 가스누설 자동차단기의 구성을 이루는 부품의 일부를 발췌하여 도시한 사시도로서 (가)는 코일이 권취되는 마그네트이고, (나)는 헤드코아이다. 제4도는 랩핑머신인을 도시한 사시도, 제5도는 랩제에 의하여 가공물을 가공하고 있는 랩핑가공 개략도.3 is a perspective view showing a part of the components constituting the gas leakage circuit breaker shown in FIG. 1, (a) is a magnet in which a coil is wound, and (b) is a head core. Fig. 4 is a perspective view showing the lapping machine, and Fig. 5 is a schematic drawing of a lapping process for processing a workpiece by a lapping agent.

Claims

Gas Leakage Gas leakage characterized by surface roughness values of magnets and head cores forming the circuit breaker Rz0.83㎛ ~ 0.844㎛, R _A of 0.070㎛ ~ 0.075㎛ and Rt of 1.05㎛ ~ 1.09㎛ Head core and magnet of short circuit.

The surface processing of head core and magnet is lapping, and the gas leakage auto breaker is made by using lapping powder with conditions of 400 ＃ m of particle size, 40 + 2.1㎛ of average size and 64㎛ of maximum diameter. Head core, magnet processing method.

※ Note: The disclosure is based on the initial application.