公开(公告)号：US3886097A

公开(公告)日：1975-05-27

申请号：US41481473

申请日：1973-11-12

Applicant: GEN MOTORS CORP

Inventor： HOSSENLOPP ARTHUR M

IPC: H01C7/108 ,  H01C7/10 ,  H01C17/00

CPC classification number: H01C7/108 ,  Y10T29/49101

Abstract: A method of making low avalanche metal oxide varistors is described. Metal oxide powders are isostatically pressed to form a rod. The rod is fired, and then sliced into a plurality of discs. Electrodes are applied to the major faces of the discs, to produce discrete varistors. Thinner discs can be made by this technique than can be made by uniaxially pressing discrete discs, to get lower avalanche voltages. Also, comparative data is presented showing that varistors from slices of this isostatically pressed rod inherently have lower avalanche voltages than uniaxially pressed discrete disc varistors.

Abstract translation: 描述了制造低雪崩金属氧化物变阻器的方法。 金属氧化物粉末被等压压制成棒。 将棒烧制，然后切成多个盘。 电极被施加到盘的主面上，以产生分立的压敏电阻。 可以通过这种技术制造更薄的圆盘，而不是通过单轴压缩离散盘来制造，以获得更低的雪崩电压。 此外，提供了比较数据，显示来自该等静压棒的压敏电阻固有地具有比单轴压缩的离散盘式压敏电阻更低的雪崩电压。