Title:
METHOD FOR MANUFACTURING LARGE-CAPACITY ZNO VARISTOR
Document Type and Number:
WIPO Patent Application WO/2017/078310
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a ZnO varistor having a high surge energy capacity. The present invention provides a method for manufacturing a large-capacity zinc oxide varistor comprising the steps of: mixing additives composed of bismuth oxide powder, antimony oxide powder, iron-group oxide powder, manganese oxide powder and alumina powder; primarily pulverising the mixed additives; mixing a varistor base material composition by mixing zinc oxide powder with the pulverised additives; secondarily pulverising the base material composition; moulding the base material composition; and sintering the moulded object. According to the present invention, a reliable zinc oxide varistor having a high surge energy capacity such as direct strike or high power electro-magnetic pulse (HPEMP) can be manufactured.
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Inventors:
KANG SUNG MAN (KR)
LEE JAE BOK (KR)
JUNG HYUN HAK (KR)
JU MOON NO (KR)
MYUNG SUNG HO (KR)
KIM HO DONG (KR)
SHENDEREY SERGEY V (KR)
LEE HONG SIK (KR)
JUNG JUN YOUNG (KR)
CHO YEUN GYU (KR)
CHOI SEUNG KYU (KR)
LEE JAE BOK (KR)
JUNG HYUN HAK (KR)
JU MOON NO (KR)
MYUNG SUNG HO (KR)
KIM HO DONG (KR)
SHENDEREY SERGEY V (KR)
LEE HONG SIK (KR)
JUNG JUN YOUNG (KR)
CHO YEUN GYU (KR)
CHOI SEUNG KYU (KR)
Application Number:
PCT/KR2016/011945
Publication Date:
May 11, 2017
Filing Date:
October 24, 2016
Export Citation:
Assignee:
KERI KOREA ELECTROTECHNOLOGY RES INST (KR)
International Classes:
H01C17/00; H01C7/112
Foreign References:
| JPH0925161A | 1997-01-28 | |||
| JP2005170729A | 2005-06-30 | |||
| JP2006186008A | 2006-07-13 | |||
| JP2002373801A | 2002-12-26 | |||
| JPH05144611A | 1993-06-11 |
Attorney, Agent or Firm:
HWANG MOK PARK IP GROUP (KR)
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