JPS6422005A - Manufacture of varistor - Google Patents
Manufacture of varistorInfo
- 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
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.
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)
| 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)
| 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 |
-
1987
- 1987-07-17 JP JP62179461A patent/JPS6422005A/en active Pending
Patent Citations (2)
| 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)
| 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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