JPH02277716A - Stainless steel for far infrared radiation emitter - Google Patents
Stainless steel for far infrared radiation emitterInfo
- Publication number
- JPH02277716A JPH02277716A JP9728589A JP9728589A JPH02277716A JP H02277716 A JPH02277716 A JP H02277716A JP 9728589 A JP9728589 A JP 9728589A JP 9728589 A JP9728589 A JP 9728589A JP H02277716 A JPH02277716 A JP H02277716A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- infrared radiation
- far infrared
- far
- infrared
- 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
- 239000010935 stainless steel Substances 0.000 title claims abstract description 21
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 21
- 230000005855 radiation Effects 0.000 title abstract description 11
- 230000003746 surface roughness Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract description 9
- 238000005422 blasting Methods 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000003082 abrasive agent Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002544 Fe-Cr Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001293 incoloy Inorganic materials 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は遠赤外線放射特性を向上させたステンレス鋼に
関するもので、本発明により製造した遠赤外線放射体用
ステンレス鋼は、遠赤外線を利用する暖房器機や乾燥・
加熱装置に好適である。Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to a stainless steel with improved far-infrared radiation characteristics. Heating equipment, drying equipment,
Suitable for heating devices.
［従来の技術］
ステンレス鋼はその優れた耐食性と耐酸化性から暖房器
機や乾燥・加熱装置に多用されているが、昨今これらの
装置において遠赤外線放射加熱のｆｌｌ用が注目されて
いる。[Prior Art] Due to its excellent corrosion resistance and oxidation resistance, stainless steel is often used in space heaters and drying/heating devices, and recently, far-infrared radiant heating has been attracting attention in these devices.
これは、有機物や水が可視光や近赤外線に比較して遠赤
外線を効率好く吸収するため、従来の熱風加熱や赤外線
加熱に比べて遠赤外線加熱が迅速に暖房、加熱できるた
めである。しかし、従来のステンレス鋼は遠赤外線放射
率が低いため、この遠赤外線加熱を利用したい場合には
、高効率で遠赤外線を放射するＣｒ２０３ 、 ｉ＼Ｑ
２０３ 。This is because organic substances and water absorb far-infrared rays more efficiently than visible light or near-infrared rays, so far-infrared heating can heat the room more quickly than conventional hot air heating or infrared heating. However, conventional stainless steel has a low far-infrared emissivity, so if you want to use this far-infrared heating, you can use Cr203 or i\Q, which emit far-infrared rays with high efficiency.
203.
５ｉ０２．ＴｉＯ２などの金属酸化物をステンレス鋼表
面に溶射したりコーティングしなければならなかった。5i02. Metal oxides such as TiO2 had to be sprayed or coated onto stainless steel surfaces.
これに対して、特公昭５９−７７８９にはＮｉ−Ｃｒ合
金、Ｆｅ−Ｃｒ合金、Ｆｅ−ＣｒＮｉ合金を高温酸化さ
せて表面にクロムを正体とする黒色酸化皮膜を有する熱
輻射材料が示されており、特公昭５９−２８９５９では
ステンレス鋼を７００°Ｃ以上で高温酸化処理して嗅厚
１〜ＩＯμｍの酸化皮膜を形成させた赤外線ヒータが開
示され、特公昭６０−１９１４では耐熱合金インコロイ
を８００℃以上で高温酸化処理した赤外線放射ヒータが
記載されており、特開昭５５−６４３３ではステンレス
鋼の表面粗度を１〜ｌｏμｍに荒らした後、湿式で酸化
皮膜を形成させた放射体が開示されている。On the other hand, Japanese Patent Publication No. 59-7789 discloses a heat-radiating material that has a black oxide film on the surface of which chromium is the main substance by oxidizing Ni-Cr alloy, Fe-Cr alloy, and Fe-CrNi alloy at high temperature. Japanese Patent Publication No. 59-28959 discloses an infrared heater in which stainless steel is subjected to high-temperature oxidation treatment at 700°C or higher to form an oxide film with a thickness of 1 to 10 μm, and Japanese Patent Publication No. 60-1914 discloses an infrared heater made of heat-resistant alloy Incoloy with a thickness of 800 μm. An infrared radiant heater subjected to high-temperature oxidation treatment at temperatures above ℃ is described, and JP-A-55-6433 discloses a radiator in which a stainless steel surface is roughened to 1 to lo μm and then an oxide film is formed in a wet process. has been done.
これらのステンレス鋼放射体は遠赤外線放射性に優れ、
酸化皮膜の剥離もないが、耐食性に劣る欠点があった。These stainless steel radiators have excellent far-infrared radiation,
Although there was no peeling of the oxide film, there was a drawback of poor corrosion resistance.
［発明が解決しようとする課題］
上記のようなコーテイング物質は剥離しやすい問題があ
ったり、また溶射材は高価であるなどの問題があり、皮
膜形成方法も素材が限定され工程が複雑となり、耐食性
に劣るなどの問題があった。本発明はこれらとは全く異
なる技術思想により簡易な工程で遠赤外線特性が高く、
使用環境に応して適切な材料を用いればよい新規な遠赤
外線放射体を提供することを目的とする。[Problems to be solved by the invention] The above-mentioned coating materials have problems such as being easy to peel off, and thermal spraying materials are expensive, and the film forming method is limited in materials and the process is complicated. There were problems such as poor corrosion resistance. The present invention uses a completely different technical concept to achieve high far-infrared characteristics with a simple process.
It is an object of the present invention to provide a novel far-infrared radiator that only needs to be made of an appropriate material depending on the environment in which it is used.
［課題を解決するための手段］
本発明者らの研究によると、ブラスト処理あるいはダル
圧延処理等により、素地表面粗度をＲａで０．５ ａ
ｍ以上の粗さにすることのみで、ステンレス鋼の遠赤外
線放射特性を向上させることができることを見出した。[Means for Solving the Problems] According to research by the present inventors, the surface roughness of the base material can be reduced to 0.5 a in Ra by blasting treatment, dull rolling treatment, etc.
It has been found that the far-infrared radiation characteristics of stainless steel can be improved simply by increasing the roughness to m or more.
本発明はこの知見により完成されたもので、その要旨と
するところは表面粗度がＲａで０．５８ｍ以上３０μｍ
以下の粗さである遠赤外線放射体用ステンレス鋼である
。The present invention was completed based on this knowledge, and its gist is that the surface roughness Ra is 0.58 m or more and 30 μm.
This is stainless steel for far-infrared radiators with the following roughness.
〔作用Ｊ
素地表面の粗さは、 Ｒａ （中心線平均粗さ）で示し
て０．５μｍ未満では十分な遠赤外線放射特性が得られ
ず、３０μｍを越えると強度の加工歪みが入りステンレ
ス鋼素材の変形が激しくなるため、０．５８ｍ以上３０
μｍ以下の相さに限定する。[Function J The roughness of the base material surface is expressed as Ra (center line average roughness). If it is less than 0.5 μm, sufficient far-infrared radiation characteristics cannot be obtained, and if it exceeds 30 μm, severe processing distortion occurs and the stainless steel material 0.58m or more 30
Limited to phases of μm or less.
素地表面をＲａで０．５ ｕ ｍ以上となるように粗ら
すには、ブラスト処理やダル圧延を行う。To roughen the surface of the substrate to an Ra of 0.5 μm or more, blasting or dull rolling is performed.
ブラスト処理は粒度１００〜４００番のケイ砂、アルミ
ナまたは炭化珪素等の砥粒を用いるか、または直径０．
０５〜１． Ｏｍ ｍの鉄球もしくは鉄グリッドを用い
、これを圧縮空気や機械的方法で投射する方法で行う。For the blasting process, abrasive grains such as silica sand, alumina, or silicon carbide with a particle size of 100 to 400 are used, or abrasive grains with a diameter of 0.
05-1. This is carried out by using an iron ball or an iron grid and projecting it using compressed air or a mechanical method.
ダル圧延は、ブラスト処理や放電加工によって表面に等
方的に凹凸を付けたロールを用いてステンレス鋼素材を
冷間圧延することにより、ステンレス鋼表面に凹凸を付
ける方法で行う。Dull rolling is performed by cold rolling a stainless steel material using a roll whose surface is isotropically roughened by blasting or electrical discharge machining, thereby creating roughness on the surface of the stainless steel.
また１表面を徂らす方法として１以上の他にエメリー紙
等を用いて研磨する方法もあるが、この方法では素材表
面の凹凸に方向性が生じて十分な遠赤外線放射特性が得
られないので除外する。In addition to the method described above, there is also a method of polishing using emery paper, etc. as a method of varying the surface of the material, but with this method, the unevenness of the material surface becomes directional and sufficient far-infrared radiation characteristics cannot be obtained. Therefore, it is excluded.
本発明方法は、すべての成分のステンレス鋼に有効であ
り、成分は各使用環境等に対応して求められる耐食性・
耐酸化性等を考慮して適切に決定することができる。The method of the present invention is effective for stainless steel of all components, and the components have the corrosion resistance and
It can be appropriately determined taking into account oxidation resistance and the like.
第１表に示す５ＵＳ３０４鋼、５ＵＳ３１０Ｓ、Ｓ０５
４３０ｗ４．ＳｔＪＳ４３４ｍ、３０Ｃｒ２Ｍｏｊｌｌ
の厚さ１．０ ｍ ｍ、２Ｂ仕上げ（冷間圧延−焼鈍一
酸洗−スキンバス圧延）の扱を実験に供した。5US304 steel, 5US310S, S05 shown in Table 1
430w4. StJS434m, 30Cr2Mojll
A specimen with a thickness of 1.0 mm and a 2B finish (cold rolling, annealing, pickling, and skin bath rolling) was subjected to the experiment.
これらの板をブラスト処理、ダル圧延処理を行い（一部
は比較のため２Ｂ仕上げと研磨仕上げで用いた。）、触
針式表面粗さ測定１１１（ＪＩＳ Ｂ２Ｓ３１）で中
心線平均粗さ（Ｒａ） ［Ｉ Ｉ ＳＢ ０６０１
）を測定した。These plates were subjected to blasting treatment and dull rolling treatment (some were used with 2B finish and polished finish for comparison), and the center line average roughness (Ra ) [II SB 0601
) was measured.
これらの試験片を４００℃に加熱し、波長５〜１５ＬＬ
ｍの遠赤外線散財強度を測定し、同−１度の黒体放射強
度との比（放射率）の平均を求め、これを遠赤外線放射
率とした。These test pieces were heated to 400°C and the wavelength was 5 to 15LL.
The far-infrared scattering intensity of m was measured, and the average ratio (emissivity) with the blackbody radiation intensity of -1 degree was calculated, and this was taken as the far-infrared emissivity.
これら数値を第１表に併せて示した。２Ｂ仕上げの比較
例１．４と研磨仕上げの比較例２およびＲａが０．５μ
ｍ未満のブラスト処理、ダル圧延処理の比較例３．５は
放射率が０．４未満の低い値であるのに対し、ブラスト
処理あるいはダル圧延処理によりＲａを０．５μｍ以上
にしたものは０．５以上の十分な放射特性を示した。These values are also shown in Table 1. Comparative Example 1.4 with 2B finish and Comparative Example 2 with polished finish and Ra of 0.5μ
Comparative Example 3.5, which was subjected to blast treatment and dull rolling treatment, had a low emissivity of less than 0.4, whereas those with Ra of 0.5 μm or more by blasting or dull rolling treatment had an emissivity of 0. It showed sufficient radiation characteristics of .5 or more.
第１図に実施例４と比較例１．２の放射率を各波長に対
して示したが１通常の２Ｂ仕上げ材の放射率０．２に対
してサンドブラスト処理をした実施例５では３倍の放射
率０．６を示した。Figure 1 shows the emissivity of Example 4 and Comparative Example 1.2 for each wavelength. 1 Compared to the emissivity of 0.2 for the normal 2B finishing material, Example 5 which was sandblasted has a three times higher emissivity. It showed an emissivity of 0.6.
〔発明の効果Ｊ
このように本発明によるステンレス鋼は優れた遠赤外線
放射特性を示し、遠赤外！！塗料の塗装や溶射等の特別
な処理を行うことなく耐久性に冨み安価であり、遠赤外
線を用いた暖房・加熱装置に極めて有用である。[Effects of the Invention J As described above, the stainless steel according to the present invention exhibits excellent far-infrared radiation characteristics, and has far-infrared radiation! ! It is highly durable and inexpensive without requiring any special treatment such as painting or thermal spraying, and is extremely useful for heating and heating devices that use far infrared rays.
第１図は各波長に対する実施例と比較例の放射率を示す
グラフである。FIG. 1 is a graph showing the emissivity of Examples and Comparative Examples for each wavelength.
Claims (1)
さである遠赤外線放射体用ステンレス鋼。1. Stainless steel for far-infrared radiators having a surface roughness of 0.5 μm or more and 30 μm or less in Ra.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9728589A JPH02277716A (en) | 1989-04-19 | 1989-04-19 | Stainless steel for far infrared radiation emitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9728589A JPH02277716A (en) | 1989-04-19 | 1989-04-19 | Stainless steel for far infrared radiation emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02277716A true JPH02277716A (en) | 1990-11-14 |
Family
ID=14188243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9728589A Pending JPH02277716A (en) | 1989-04-19 | 1989-04-19 | Stainless steel for far infrared radiation emitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02277716A (en) |
Citations (1)
| 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 |
-
1989
- 1989-04-19 JP JP9728589A patent/JPH02277716A/en active Pending
Patent Citations (1)
| 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 |
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