JPS6422005A - Manufacture of varistor - Google Patents

Manufacture of varistor

Info

Publication number
JPS6422005A
JPS6422005A JP62179461A JP17946187A JPS6422005A JP S6422005 A JPS6422005 A JP S6422005A JP 62179461 A JP62179461 A JP 62179461A JP 17946187 A JP17946187 A JP 17946187A JP S6422005 A JPS6422005 A JP S6422005A
Authority
JP
Japan
Prior art keywords
varistor
sheath
molding
baked
zinc oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62179461A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishibashi
Taizo Hashizume
Takayoshi Toyomi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62179461A priority Critical patent/JPS6422005A/en
Publication of JPS6422005A publication Critical patent/JPS6422005A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/30—Apparatus or processes specially adapted for manufacturing resistors adapted for baking

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermistors And Varistors (AREA)

Abstract

PURPOSE:To manufacture a varistor having excellent characteristics through one-time baking by a method wherein a setter consisting of a zinc oxide molding is mounted between a sheath and a cover, a varistor molding containing bismuth oxide is baked, the inside of the sheath is brought to a bismuth oxide atmosphere in a sintering process and the varistor mainly comprising zinc oxide is baked in the atmosphere. CONSTITUTION:A varistor molding mainly comprising zinc oxide represented by 6a to be baked in a sheath 4 and containing at least bismuth oxide as an additive is positioned onto a base on which laying powder is laid. On the other hand, several setters composed of a zinc oxide molding represented by 7a are erected near edges in the sheath 4, and the upper sections of the setters are covered with a cover 5 so that the sheath 4 becomes hermetic when the setters 7 are shrunk. The varistor molding is baked for 1-5 hr at 1100-1300 deg.C by a single furnace or a tunnel furnace under the state. Accordingly, an excellent varistor having superior non-linearity and stabilized high-temperature load lifetime characteristics can be manufactured through one-time baking.
JP62179461A 1987-07-17 1987-07-17 Manufacture of varistor Pending JPS6422005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179461A JPS6422005A (en) 1987-07-17 1987-07-17 Manufacture of varistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179461A JPS6422005A (en) 1987-07-17 1987-07-17 Manufacture of varistor

Publications (1)

Publication Number Publication Date
JPS6422005A true JPS6422005A (en) 1989-01-25

Family

ID=16066255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179461A Pending JPS6422005A (en) 1987-07-17 1987-07-17 Manufacture of varistor

Country Status (1)

Country Link
JP (1) JPS6422005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109192420A (en) * 2018-08-22 2019-01-11 国家电网公司 A kind of preparation method of high-performance zinc oxide resistor disc

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037805A (en) * 1973-08-07 1975-04-08
JPS5778105A (en) * 1980-10-31 1982-05-15 Meidensha Electric Mfg Co Ltd Method of producing voltage nonlinear resistor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037805A (en) * 1973-08-07 1975-04-08
JPS5778105A (en) * 1980-10-31 1982-05-15 Meidensha Electric Mfg Co Ltd Method of producing voltage nonlinear resistor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109192420A (en) * 2018-08-22 2019-01-11 国家电网公司 A kind of preparation method of high-performance zinc oxide resistor disc

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