JPH0159711B2 - - Google Patents
Info
- Publication number
- JPH0159711B2 JPH0159711B2 JP56075203A JP7520381A JPH0159711B2 JP H0159711 B2 JPH0159711 B2 JP H0159711B2 JP 56075203 A JP56075203 A JP 56075203A JP 7520381 A JP7520381 A JP 7520381A JP H0159711 B2 JPH0159711 B2 JP H0159711B2
- Authority
- JP
- Japan
- Prior art keywords
- insulation resistance
- resistance value
- added
- shows
- powder
- 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.)
- Expired
Links
- 239000000843 powder Substances 0.000 claims description 54
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 31
- 239000000395 magnesium oxide Substances 0.000 claims description 26
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 238000009413 insulation Methods 0.000 description 68
- 238000005259 measurement Methods 0.000 description 7
- 238000010292 electrical insulation Methods 0.000 description 6
- 230000002123 temporal effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920006015 heat resistant resin Polymers 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001293 incoloy Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7520381A JPS57189481A (en) | 1981-05-18 | 1981-05-18 | Sheathed heater |
| DE8282901434T DE3278966D1 (en) | 1981-05-18 | 1982-05-17 | A shielded heating element and a method of manufacturing the same |
| EP82901434A EP0079385B1 (en) | 1981-05-18 | 1982-05-17 | A shielded heating element and a method of manufacturing the same |
| PCT/JP1982/000171 WO1982004171A1 (en) | 1981-05-18 | 1982-05-17 | A shielded heating element and a method of manufacturing the same |
| AT82901434T ATE36797T1 (de) | 1981-05-18 | 1982-05-17 | Abgeschirmtes heizelement und dessen herstellungsverfahren. |
| US06/460,242 US4586020A (en) | 1981-05-18 | 1982-05-17 | Sheathed resistance heater |
| AU83963/82A AU541582B2 (en) | 1981-05-18 | 1982-05-17 | A shielded heating element and a method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7520381A JPS57189481A (en) | 1981-05-18 | 1981-05-18 | Sheathed heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57189481A JPS57189481A (en) | 1982-11-20 |
| JPH0159711B2 true JPH0159711B2 (lt) | 1989-12-19 |
Family
ID=13569396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7520381A Granted JPS57189481A (en) | 1981-05-18 | 1981-05-18 | Sheathed heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57189481A (lt) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60212987A (ja) * | 1984-04-09 | 1985-10-25 | 松下電器産業株式会社 | シ−ズヒ−タ |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5469000A (en) * | 1977-11-10 | 1979-06-02 | Matsushita Electric Ind Co Ltd | Electric insulator porcelain |
| JPS5658248A (en) * | 1979-10-17 | 1981-05-21 | Matsushita Electric Ind Co Ltd | Production of semiconductor device |
-
1981
- 1981-05-18 JP JP7520381A patent/JPS57189481A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5469000A (en) * | 1977-11-10 | 1979-06-02 | Matsushita Electric Ind Co Ltd | Electric insulator porcelain |
| JPS5658248A (en) * | 1979-10-17 | 1981-05-21 | Matsushita Electric Ind Co Ltd | Production of semiconductor device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57189481A (en) | 1982-11-20 |
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