JPS6344358U - - Google Patents
Info
- Publication number
- JPS6344358U JPS6344358U JP13785886U JP13785886U JPS6344358U JP S6344358 U JPS6344358 U JP S6344358U JP 13785886 U JP13785886 U JP 13785886U JP 13785886 U JP13785886 U JP 13785886U JP S6344358 U JPS6344358 U JP S6344358U
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- alloy
- coating layer
- high melting
- intermediate coating
- 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
- 239000011247 coating layer Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims 5
- 229910045601 alloy Inorganic materials 0.000 claims 5
- 230000008018 melting Effects 0.000 claims 5
- 238000002844 melting Methods 0.000 claims 5
- 239000002184 metal Substances 0.000 claims 5
- 239000000843 powder Substances 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
第１図はこの考案の一実施例傍熱形陰極用ヒー
タの構造を示す図、第２図はその全体の形状を示
す図、第３図はタングステン粉末からなる中間被
覆層とヒータ電流との関係を示す図、第４図は他
の実施例の構造を示す図、第５図は従来の傍熱形
陰極用ヒータの構造を示す図である。
１……心線、２……アルミナ絶縁層、１２，１
２ａ……中間被覆層。
Fig. 1 shows the structure of an indirectly heated cathode heater according to an embodiment of the invention, Fig. 2 shows its overall shape, and Fig. 3 shows the relationship between the intermediate coating layer made of tungsten powder and the heater current. FIG. 4 is a diagram showing the structure of another embodiment, and FIG. 5 is a diagram showing the structure of a conventional indirectly heated cathode heater. 1... Core wire, 2... Alumina insulating layer, 12,1
2a...Intermediate coating layer.
Claims (1)
、この心線を被覆するアルミナ絶縁層と、高融点
金属またはその合金の主成分と同じ成分の粉末を
主体として上記心線と上記アルミナ絶縁層との間
に設けられた中間被覆層とを具備することを特徴
とする傍熱形陰極用ヒータ。 (2) 中間被覆層は厚さがアルミナ絶縁層の厚さ
より小さいことを特徴とする実用新案登録請求の
範囲第１項記載の傍熱形陰極用ヒータ。 (3) 中間被覆層は心線を構成する高融点金属ま
たはその合金の主成分と同じ成分の粉末を主体と
していることを特徴とする実用新案登録請求の範
囲第１項または第２項記載の傍熱形陰極用ヒータ
。 (4) 中間被覆層は高融点金属またはその合金の
主成分の酸化物粉末から構成されていることを特
徴とする実用新案登録請求の範囲第１項または第
２項記載の傍熱形陰極用ヒータ。 (5) 中間被覆層は高融点金属またはその合金の
主成分の塩類粉末から構成されていることを特徴
とする実用新案登録請求の範囲第１項または第２
項記載の傍熱形陰極用ヒータ。[Claims for Utility Model Registration] (1) A core wire made of a high melting point metal or its alloy, an alumina insulating layer covering the core wire, and a powder having the same main components as the high melting point metal or its alloy. An indirectly heated cathode heater, comprising: an intermediate coating layer provided between the core wire and the alumina insulating layer. (2) The indirectly heated cathode heater according to claim 1, wherein the intermediate coating layer has a thickness smaller than that of the alumina insulating layer. (3) A utility model according to claim 1 or 2, characterized in that the intermediate coating layer is mainly composed of powder having the same composition as the main component of the high melting point metal or its alloy constituting the core wire. Indirectly heated cathode heater. (4) For an indirectly heated cathode according to claim 1 or 2 of the utility model registration claim, wherein the intermediate coating layer is composed of an oxide powder of a high melting point metal or an alloy thereof as a main component. heater. (5) Utility model registration claim 1 or 2, characterized in that the intermediate coating layer is composed of salt powder as a main component of a high melting point metal or its alloy.
Indirectly heated cathode heater as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13785886U JPS6344358U (en) | 1986-09-10 | 1986-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13785886U JPS6344358U (en) | 1986-09-10 | 1986-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6344358U true JPS6344358U (en) | 1988-03-25 |
Family
ID=31042304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13785886U Pending JPS6344358U (en) | 1986-09-10 | 1986-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6344358U (en) |
-
1986
- 1986-09-10 JP JP13785886U patent/JPS6344358U/ja active Pending