JPS597789B2 - Netsufukushi Yazairiyo - Google Patents
Netsufukushi YazairiyoInfo
- Publication number
- JPS597789B2 JPS597789B2 JP50148912A JP14891275A JPS597789B2 JP S597789 B2 JPS597789 B2 JP S597789B2 JP 50148912 A JP50148912 A JP 50148912A JP 14891275 A JP14891275 A JP 14891275A JP S597789 B2 JPS597789 B2 JP S597789B2
- Authority
- JP
- Japan
- Prior art keywords
- chromium
- nickel
- iron
- alloy
- chromium alloy
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Resistance Heating (AREA)
- Chemical Treatment Of Metals (AREA)
Description
【発明の詳細な説明】
本発明は熱輻射材料に係り、とくに高温強度にすぐれた
ニッケルクロム合金、鉄クロム合金又は鉄ニッケルクロ
ム合金の表面に密着性のよ（・黒色酸化膜を生成させて
熱輻射の一層の向上がみられるように改良された熱輻射
材料に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat radiating material, and in particular, the present invention relates to a heat radiating material that has excellent adhesion (and the formation of a black oxide film) on the surface of a nickel chromium alloy, iron chromium alloy, or iron nickel chromium alloy that has excellent high-temperature strength. The present invention relates to an improved thermal radiation material that exhibits further improvement in thermal radiation.
一般に金属材料として熱輻射性を要求されるものは電子
管の管内部品をはじめ電熱線などきわめて多くの分野に
わたつて使用されて（・る。In general, metal materials that require heat radiation are used in a wide variety of fields, including the inner parts of electron tubes and heating wires.
これらのものにつ（・てはそれぞれ製品とされたとき、
熱輻射がよ（・ためには地金の熱的電気的などの特性と
共に、その表面が黒（゛こと、表面積が大き（゛ことな
どによつて一層熱輻射をよくさせるものである。そのた
めにたとえば鉄にアルミニウムをクラッドさせたもので
鉄にアルミニウムを反応させたり、また有機物を、燃焼
させて発生するすすを付着させたりなどして表面を黒化
したり、サンドブラストを施して表面を粗にして表面積
を大きくしたりなどして（゛る。しかしながら上記のよ
うに鉄にアルミニウムをクラッドしたものは高温では使
用することができず、またベンゼンを燃焼させたときに
発生するすすをニッケル地金に付着させた（・わゆるス
ーテング材は作業に手数がかかり、こすられて地金から
脱落することがあつて不都合を生ずるものであり、また
表面を粗面化する方法をほどこしてもなかなか所望通り
の熱輻射が得られな（・。When each of these items is considered a product,
In order to improve heat radiation, in addition to the thermal and electrical properties of the metal, its surface is black and has a large surface area, which further improves heat radiation. For example, the surface may be blackened by reacting the aluminum with iron by cladding it with aluminum, or the surface may be blackened by attaching soot generated by burning organic matter, or the surface may be roughened by sandblasting. However, as mentioned above, iron clad with aluminum cannot be used at high temperatures, and the soot generated when benzene is burned can be removed from the nickel base. (The so-called sooting material is labor-intensive to work with and can cause inconvenience as it may rub off and fall off from the base metal.Also, even if methods of roughening the surface are applied, it is difficult to obtain the desired result.) I can't get the heat radiation from the street (・.
そのため各種合金を高温酸化させて表面を黒くすること
もなされて（・るが、その黒化度が十分でなく、各種の
要望には（・まだ十分に対応することができなかつた。For this reason, attempts have been made to blacken the surface of various alloys by oxidizing them at high temperatures. However, the degree of blackening was not sufficient, and it was not yet possible to fully meet various demands.
本発明はこれらの点にかんがみなされたもので、ニッケ
ルクロム合金、鉄クロム合金又は鉄ニッケルクロム合金
をある雰囲気中で高温酸化させることによつて合金表面
を黒化して熱輻射を良好にしようとするものである。The present invention was made in consideration of these points, and attempts to blacken the alloy surface and improve heat radiation by oxidizing a nickel-chromium alloy, iron-chromium alloy, or iron-nickel-chromium alloy at a high temperature in a certain atmosphere. It is something to do.
すなわちニッケルクロム合金、鉄クロム合金又は鉄ニッ
ケルクロム合金にチタン、ニオブ、ジルコニウム、バナ
ジウムの内少なくとも（・ずれか１種を添加したものを
大気中や湿潤水素中で高温酸化させてその表面に黒色の
従来よりも一層黒化度の優れた酸化膜を生成し、熱輻射
を良好にする。本発明熱輻射材料の表面に生成される黒
色酸化膜はクロムを主体としたものであることが必要で
ある。すなわち酸化膜の金属分にお（・てクロムが３５
％以上（％は重量％、以下同じ）であることが望まし（
・。また本発明熱輻射材料の中でも、チタン、ニオブ、
ジルコニウム、バナジウムを添加したニツケルクロム合
金、鉄クロム合金又は鉄ニツケルクロム合金を酸化させ
たものは黒化度にお（゛てより好まし℃・。In other words, a nickel-chromium alloy, iron-chromium alloy, or iron-nickel-chromium alloy to which at least one of titanium, niobium, zirconium, and vanadium is added is oxidized at high temperature in the air or in wet hydrogen to give a black color to the surface. The black oxide film produced on the surface of the thermal radiation material of the present invention must be mainly composed of chromium. In other words, in the metal part of the oxide film, chromium is 35
% or more (% is weight %, the same applies hereinafter) (
・. Also, among the heat radiating materials of the present invention, titanium, niobium,
Oxidized nickel-chromium alloys, iron-chromium alloys, or iron-nickel-chromium alloys to which zirconium or vanadium has been added have a certain degree of blackening (more preferably at ℃).
本発明はニッケルクロム合金、鉄クロム合金又は鉄ニツ
ケルクロム合金に上記のようにニオブなどを少なくとも
１種微量添加した合金とすることにより、これらを高温
酸化させて理想的な黒に近・黒化度を有する酸化膜をそ
れぞれの表面に生成させることができ、熱輻射をきわめ
て良好にし、利用範囲の拡大に資するものである。The present invention is an alloy in which a trace amount of at least one kind of niobium is added to a nickel-chromium alloy, iron-chromium alloy, or iron-nickel-chromium alloy as described above, and the alloy is oxidized at high temperature to achieve a near-ideal black color. It is possible to form an oxide film with a certain degree of heat on each surface, which improves heat radiation and contributes to expanding the range of use.
また本発明熱輻射材料はその表面に特長を有するもので
あり、たとえば他の系の合金を基本として表面にニツケ
ルクロム合金、鉄クロム合金又は鉄ニツケルクロム合金
をめつき等の手段で設け、これを酸化させたものでもよ
〜・。更に本発明熱輻射材料の表面を粗面化して使用す
ることも好まし（・。以下本発明の実施例につ（・て説
明する。In addition, the heat radiating material of the present invention has a feature on its surface. For example, a nickel-chromium alloy, an iron-chromium alloy, or an iron-nickel-chromium alloy is provided on the surface of another type of alloy by means of plating or the like. Even something that is oxidized. Furthermore, it is also preferable to roughen the surface of the heat radiating material of the present invention (. Examples of the present invention will be described below).
クロムを含有する鉄クロム合金、ニツケルクロム合金、
鉄ニツケルクロム合金につき、次の表−１に示す合金組
成になるように溶製する。上記表−１の試料番号１−２
１までの合金は水素中で１２００℃で酸化させたときと
大気中２に示す。Iron-chromium alloys containing chromium, nickel-chromium alloys,
An iron-nickel-chromium alloy is melted to have the alloy composition shown in Table 1 below. Sample number 1-2 in Table-1 above
Alloys up to 1 are shown when oxidized at 1200° C. in hydrogen and 2 in air.
上記表−２の黒化度は明度（ＪＩＳＺ−８７２１による
）によつて示す。The degree of blackening in Table 2 above is indicated by lightness (according to JIS Z-8721).
表−２かられかるように本発明熱輻射材料は高温酸化さ
せるとその表面にすぐれた黒化度を有するのぞまし（・
黒色の酸化度が形成され、熱輻射材料としては従来のも
のにくらべてきわめてすぐれたものとなる。As can be seen from Table 2, the thermal radiant material of the present invention has an excellent degree of blackening on its surface when oxidized at high temperature.
A black oxidation degree is formed, making it an extremely superior heat radiating material compared to conventional materials.
以上の熱輻射材料に生成された酸化膜を調べた。それに
よると黒化度の優れた酸化膜はクロムを主体とし、その
クロム含有量は酸化膜の金属分にお（゛て重量％で３５
％以上のものであつた。この結果を表−３に示す。The oxide film formed on the above heat radiating materials was investigated. According to this, an oxide film with an excellent degree of blackening is mainly composed of chromium, and the chromium content is equal to the metal content of the oxide film (35% by weight).
% or more. The results are shown in Table-3.
なお表−３のものは露点３０℃の湿潤水素中にお（゛て
１２００℃で約１時間加熱したものである。次に本発明
熱輻射材料として好まし（・含クロム合金を挙げる。The materials shown in Table 3 were heated at 1200°C for about 1 hour in moist hydrogen with a dew point of 30°C.Next, chromium-containing alloys are preferred as the heat radiating material of the present invention.
まず上記の鉄クロム合金の場合にはクロムの含有量が２
〜３５％の範囲が好適である。クロムの含有量が２％未
満では黒化度向上の効果がなく、３５（：ｆ）をこえる
とσ相の問題が発生する。ニツケルクロム合金の場合に
はクロムの含有量は２〜６０（Ｆｆ）が良（・。クロム
が２％未満では黒化度向上の効果が少なく、６０％をこ
すと加工性に問題がでる。また鉄ニツケルクロム合金の
場合にはニツケルが３〜８５（！）の範囲のものが用（
゛られ、クロムの含有量の範囲は３〜４０ヂが好適であ
る。さらにチタン、バナジウム、ニオブおよびジルコニ
ウムの添加量は１種類添加の場合も２種類以上添加した
場合の合量でも、０．０３％未満では黒化度増強の効果
はなく、５（ｆｌ）をこえると加工性が悪くなつて使用
に不具合であるので、０．０３％〜５％の範囲がよ（・
。なお、けい素、アルミニウム、マンガン、イツトリウ
ムを添加しても同じような効果を示すものである。First, in the case of the above iron-chromium alloy, the chromium content is 2
A range of 35% is preferred. If the chromium content is less than 2%, there is no effect of improving the degree of blackening, and if it exceeds 35 (:f), the problem of σ phase occurs. In the case of a nickel-chromium alloy, a chromium content of 2 to 60 (Ff) is good (.If the chromium content is less than 2%, the effect of improving the degree of blackening is small, and if it exceeds 60%, problems arise in workability. In addition, in the case of iron-nickel-chromium alloys, those with nickel in the range of 3 to 85 (!) are used (
The chromium content is preferably in the range of 3 to 40. Furthermore, whether the amount of titanium, vanadium, niobium, and zirconium added is less than 0.03%, whether it is one type or the total amount of two or more types added, there is no effect of increasing the degree of blackening, and the amount exceeds 5 (fl). The range of 0.03% to 5% is recommended (・
. Note that the same effect is obtained even when silicon, aluminum, manganese, and yttrium are added.
このように本発明の合金は黒化度の著しく向上した酸化
膜をその表面に生成させることができるので、熱輻射が
良好なことが必要な電子管の管内部品や電熱線や温水器
部材などに使用して特性の向上に寄与すること大である
。In this way, the alloy of the present invention can generate an oxide film with a significantly improved degree of blackening on its surface, so it can be used for internal parts of electron tubes, heating wires, water heater parts, etc. that require good heat radiation. Its use greatly contributes to improving the characteristics.
また熱輻射が良好な材料は熱吸収もきわめてよ（・ので
、したがつて太陽熱吸収装置の部材など熱吸収に関する
分野にも応用範囲が広げられ、それぞれの特性向上に寄
与することができる。In addition, materials with good thermal radiation are also very good at absorbing heat. Therefore, the range of application can be expanded to fields related to heat absorption, such as components of solar heat absorption devices, and it can contribute to improving the characteristics of each.
Claims (1)
膜を有し、チタン、ニオブ、バナジウム、ジルコニウム
の少なくとも１種を０．０３重量％〜５重量％の範囲添
加したニッケルクロム合金、鉄クロム合金又は鉄ニッケ
ルクロム合金（ただしチタンを添加したニッケルクロム
合金は除く）よりなり、前記酸化膜の金属分においてク
ロムが３５重量％以上であることを特徴とする熱輻射材
料。1 Nickel-chromium alloy, iron-chromium alloy that has been oxidized at high temperature and has a black oxide film mainly composed of chromium on the surface, and has at least one of titanium, niobium, vanadium, and zirconium added in a range of 0.03% to 5% by weight. A thermal radiation material made of an alloy or an iron-nickel-chromium alloy (excluding a nickel-chromium alloy to which titanium is added), characterized in that the oxide film contains 35% by weight or more of chromium.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50148912A JPS597789B2 (en) | 1975-12-12 | 1975-12-12 | Netsufukushi Yazairiyo |
| US05/748,362 US4119761A (en) | 1975-12-12 | 1976-12-07 | Heat radiation anode |
| DE2656167A DE2656167C2 (en) | 1975-12-12 | 1976-12-10 | Method of making a heat radiating anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50148912A JPS597789B2 (en) | 1975-12-12 | 1975-12-12 | Netsufukushi Yazairiyo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5272339A JPS5272339A (en) | 1977-06-16 |
| JPS597789B2 true JPS597789B2 (en) | 1984-02-21 |
Family
ID=15463427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50148912A Expired JPS597789B2 (en) | 1975-12-12 | 1975-12-12 | Netsufukushi Yazairiyo |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597789B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135690U (en) * | 1984-08-04 | 1986-03-05 | 里之 高林 | clothes hanger |
| JPS6379884U (en) * | 1986-11-14 | 1988-05-26 | ||
| JPS63139894U (en) * | 1987-03-03 | 1988-09-14 | ||
| JPH0385968U (en) * | 1989-12-17 | 1991-08-30 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556433A (en) * | 1978-06-28 | 1980-01-17 | Nisshin Steel Co Ltd | Stainless steel radiator and production thereof |
| JPS6087A (en) * | 1983-06-15 | 1985-01-05 | 松下電器産業株式会社 | Far infrared ray heater |
| JPS6020058A (en) * | 1983-07-13 | 1985-02-01 | Hitachi Chem Co Ltd | Treatment of heat collecting surface |
-
1975
- 1975-12-12 JP JP50148912A patent/JPS597789B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135690U (en) * | 1984-08-04 | 1986-03-05 | 里之 高林 | clothes hanger |
| JPS6379884U (en) * | 1986-11-14 | 1988-05-26 | ||
| JPS63139894U (en) * | 1987-03-03 | 1988-09-14 | ||
| JPH0385968U (en) * | 1989-12-17 | 1991-08-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5272339A (en) | 1977-06-16 |
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