JP2000329411A - Water touching part for corrosion resistant hot water supply apparatus, manufacture thereof and hot water supply apparatus employing it - Google Patents
Water touching part for corrosion resistant hot water supply apparatus, manufacture thereof and hot water supply apparatus employing itInfo
- Publication number
- JP2000329411A JP2000329411A JP11141521A JP14152199A JP2000329411A JP 2000329411 A JP2000329411 A JP 2000329411A JP 11141521 A JP11141521 A JP 11141521A JP 14152199 A JP14152199 A JP 14152199A JP 2000329411 A JP2000329411 A JP 2000329411A
- Authority
- JP
- Japan
- Prior art keywords
- water
- copper
- supply apparatus
- copper alloy
- hot water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims 4
- 239000005871 repellent Substances 0.000 claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 20
- 229910000077 silane Inorganic materials 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- -1 polysiloxane Polymers 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 125000001165 hydrophobic group Chemical group 0.000 claims abstract description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052710 silicon Inorganic materials 0.000 claims abstract 2
- 239000010703 silicon Substances 0.000 claims abstract 2
- 239000000758 substrate Substances 0.000 claims description 11
- 239000004447 silicone coating Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 150000001343 alkyl silanes Chemical class 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims 2
- 238000006297 dehydration reaction Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 12
- 230000002940 repellent Effects 0.000 abstract description 8
- 125000000217 alkyl group Chemical group 0.000 abstract description 4
- 125000003709 fluoroalkyl group Chemical group 0.000 abstract description 4
- 239000010409 thin film Substances 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 125000003545 alkoxy group Chemical group 0.000 abstract description 2
- 125000004429 atom Chemical group 0.000 abstract description 2
- 229910052736 halogen Inorganic materials 0.000 abstract description 2
- 150000002367 halogens Chemical group 0.000 abstract description 2
- 125000005372 silanol group Chemical group 0.000 abstract description 2
- 125000001424 substituent group Chemical group 0.000 abstract description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 239000010408 film Substances 0.000 description 4
- 229920002050 silicone resin Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- KKYDYRWEUFJLER-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F KKYDYRWEUFJLER-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920006268 silicone film Polymers 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- MLCDUXFOESLBDF-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecylsilane Chemical compound FC(F)(F)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)[SiH3] MLCDUXFOESLBDF-UHFFFAOYSA-N 0.000 description 1
- 241001311547 Patina Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RAOSIAYCXKBGFE-UHFFFAOYSA-K [Cu+3].[O-]P([O-])([O-])=O Chemical compound [Cu+3].[O-]P([O-])([O-])=O RAOSIAYCXKBGFE-UHFFFAOYSA-K 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Details Of Fluid Heaters (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は給湯機の銅又は銅合
金からなる少なくとも水と接触する内表面に耐腐食性に
優れた被膜が形成されてなる耐腐食性給湯機用接水部品
及びそれを部品として含む給湯機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-repellent component for a corrosion-resistant water heater having a coating having excellent corrosion resistance formed on at least the inner surface of a water heater made of copper or copper alloy which comes into contact with water. And a water heater including as a part.
【０００２】[0002]
【従来の技術】従来、瞬間湯沸器、給湯機の基材は、熱
伝導性、導電性に加えて耐熱性に優れたリン酸脱酸銅を
使用している。腐食性を防止するために、前記リン酸脱
酸銅の表面上にフッ素樹脂を薄く塗布した後、焼き付け
塗装する方法が取られる。またそのほかの樹脂を塗布す
る方法においては、溶剤に溶解又は懸濁させた塗料を塗
布して溶剤を乾燥するなどの手段がとられる。2. Description of the Related Art Conventionally, as a base material of an instantaneous water heater and a water heater, copper phosphate deoxidized which has excellent heat resistance in addition to heat conductivity and conductivity is used. In order to prevent the corrosiveness, a method of applying a thin fluororesin on the surface of the phosphoric acid-deoxidized copper and then baking it is adopted. In addition, other methods of applying a resin include a method of applying a paint dissolved or suspended in a solvent and drying the solvent.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記の
フッ素樹脂を塗布する方法では、給湯機の銅または銅合
金製基材との密着が悪く、耐久性に問題があった。ま
た、その他の樹脂を塗布する方法も密着性が弱く、耐久
性に問題が合った。そこで、本発明では、密着性及び耐
久性に優れた被膜を形成し、給湯機の銅または銅合金の
腐食を防止することを目的とする。However, in the above-mentioned method of applying a fluororesin, adhesion to a copper or copper alloy substrate of a water heater is poor, and there is a problem in durability. In addition, the method of applying other resins also has poor adhesion, and has a problem in durability. Therefore, an object of the present invention is to form a film having excellent adhesion and durability and prevent corrosion of copper or a copper alloy of a water heater.
【０００４】[0004]
【課題を解決するための手段】本発明では、上記課題を
解決すべく、給湯機用接水部品の銅または銅合金製基材
の少なくとも水と接する面に撥水性シリコーン被膜を形
成する。そうすることにより、前記基材の腐食の原因と
なる遊離炭酸などが直接銅または銅合金製基材と接触さ
せないようになるので、腐食の原因となる銅合金材料中
のＣｕ、Ｓｎ、Ｚｎ等の溶出を抑制し、給湯機の接水部
品の耐腐食性を向上させる。According to the present invention, a water-repellent silicone coating is formed on at least a surface of a copper or copper alloy substrate of a water-contacting part for a water heater, which is in contact with water. By doing so, free carbonic acid and the like that cause corrosion of the base material do not come into direct contact with the copper or copper alloy base material, so that Cu, Sn, Zn, etc. in the copper alloy material that causes corrosion Of water and improve the corrosion resistance of wetted parts of the water heater.
【０００５】前記撥水性シリコーン被膜にシラン系化合
物を用いるとより好ましい。そうすることで、前記基材
と共有結合で一体化している分子コート膜が得られるた
め、極めて厚さの薄い膜で合って密着強度が高く、耐食
性に優れた耐腐食性給湯機を提供することが可能とな
る。It is more preferable to use a silane compound for the water-repellent silicone coating. By doing so, a molecular coat film that is covalently integrated with the base material can be obtained, so that a very thin film can be fitted to provide high adhesion strength and provide a corrosion-resistant water heater with excellent corrosion resistance. It becomes possible.
【０００６】[0006]
【発明の実施の形態】以下に、本発明を詳細に説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
【０００７】撥水性被膜には、例えば、アルキルシラン
・フルオロアルキルシラン等の疎水性基を有するシラン
系化合物の重合体であるシリコーン樹脂等が利用でき
る。シリコーン樹脂は、銅または銅合金製基材の密着に
おいて優れている。また、フルオロアルキルシランの重
合体であるフルオロ基を有するシリコーン樹脂は、上記
シリコーン樹脂の有する性質に加えて、表面エネルギー
が極めて低く、他の物質との反応性が低い長所をも兼ね
備えており、より好ましい。For the water-repellent coating, for example, a silicone resin or the like, which is a polymer of a silane compound having a hydrophobic group such as alkylsilane and fluoroalkylsilane, can be used. Silicone resin is excellent in adhesion of a copper or copper alloy substrate. Further, a silicone resin having a fluoro group which is a polymer of a fluoroalkylsilane, in addition to the properties of the above silicone resin, has an extremely low surface energy and also has an advantage of low reactivity with other substances, More preferred.
【０００８】接水部品１の水と接する面を図１（Ａ）に
示すシラン系化合物（ＲＳｉＸ：Ｒはアルキル基やフル
オロアルキル基等の疎水性基、Ｘはハロゲンやアルコキ
シル基などの置換基）で処理すると、給湯機の銅または
銅合金製基材の接水部品の上記面に存在しているシラノ
ール基（−Ｓｉ−ＯＨ）に結合するとともに縮合してポ
リシロキサンの層を生成する。その結果、同図（Ｂ）の
ようにアルキル基、フルオロアルキル基等の疎水性基に
より銅または銅合金製基材１表面がおおわれ、撥水層２
が形成される。この撥水層２は基材１の銅または銅合金
を構成する金属原子と共有結合で一体化しており、密着
性、耐久性に極めて優れた薄膜となっている。FIG. 1A shows a silane compound (RSix: R is a hydrophobic group such as an alkyl group or a fluoroalkyl group, and X is a substituent such as a halogen or alkoxyl group) shown in FIG. ), It binds to and condenses with silanol groups (-Si-OH) present on the above-mentioned surface of the wetted parts of the copper or copper alloy base material of the water heater to form a polysiloxane layer. As a result, the surface of the copper or copper alloy substrate 1 is covered with a hydrophobic group such as an alkyl group or a fluoroalkyl group as shown in FIG.
Is formed. The water-repellent layer 2 is covalently integrated with the metal atoms constituting the copper or copper alloy of the base material 1 and is a thin film having extremely excellent adhesion and durability.
【０００９】アルキルシラン、フルオロアルキルシラン
などのシラン系化合物の固形分は、溶媒に対して好まし
くは０．５重量％をこえ５重量％以下、より好ましくは
１重量％以上３重量％以下とするのがよい。溶媒はイソ
プロピルアルコールの他、メタノール、メチルエチルケ
トン、トルエンなどを適用することができる。また、加
水分解用の水をシラン化合物に対して必要モル量添加
し、さらに、触媒として硝酸もしくは塩酸を必要に応じ
て少量添加してもよい。The solid content of the silane compound such as alkylsilane and fluoroalkylsilane is preferably more than 0.5% by weight and 5% by weight or less, more preferably 1% by weight or more and 3% by weight or less based on the solvent. Is good. As the solvent, methanol, methyl ethyl ketone, toluene, or the like can be used in addition to isopropyl alcohol. Further, water for hydrolysis may be added in a necessary molar amount to the silane compound, and a small amount of nitric acid or hydrochloric acid may be further added as a catalyst if necessary.
【００１０】接水部品の水と接する面にコーテイングす
る方法としては、例えば、スプレー法、印刷法、ディッ
ピング法等が好適に利用できる。このうち、特に、給湯
機の銅または銅合金基材の内表面にコーティングするに
は、デイッピング法が優れている。[0010] As a method of coating the surface of the water-contacting part which comes into contact with water, for example, a spraying method, a printing method, a dipping method and the like can be suitably used. Among them, the dipping method is particularly excellent for coating the inner surface of the copper or copper alloy base material of the water heater.
【００１１】[0011]
【実施例】以下に実施例を挙げて本発明をより具体的に
説明する。給湯機の熱交換機の部材として使用されてい
るリン脱酸素銅サンプルを用意し、有機溶媒で洗浄後、
例えば撥水性シリコーン被膜となるヘプタデカフルオロ
デシルトリメトキシシランを含む撥水剤を調合し、ディ
ッピングした。 撥水剤の配合 ｇ ・ヘプタデカフルオロデシルトリメトキシシラン ３２ ・水 ４．６ ・硝酸 ２．６ ・イソプロピルアルコール １６００ 撥水剤中にサンプルを３０分間浸せきすると、サンプル
膜表面には水酸基が多数含まれているので、ヘプタデカ
フルオロデシルトリメトキシシランのメトキシ基と前記
水酸基が反応し、脱メトキシ反応が生じる。その後、サ
ンプルを取り出し、自然乾燥後に約２００℃の温度で焼
き付ける。サンプル表面にはヘプタデカフルオロデシル
シランの結合が生成され、図１のＢに示すような結合状
態で約１ｎｍの膜厚が生成できる。The present invention will be described more specifically with reference to the following examples. Prepare a phosphorus deoxidized copper sample used as a member of the heat exchanger of the water heater, wash with an organic solvent,
For example, a water repellent containing heptadecafluorodecyltrimethoxysilane to be a water repellent silicone coating was prepared and dipped. Formulation of water repellent g ・ Heptadecafluorodecyltrimethoxysilane 32 ・ Water 4.6 ・ Nitric acid 2.6 ・ Isopropyl alcohol 1600 When the sample is immersed in the water repellent for 30 minutes, the surface of the sample film contains many hydroxyl groups. Therefore, the methoxy group of heptadecafluorodecyltrimethoxysilane reacts with the hydroxyl group to cause a demethoxylation reaction. After that, the sample is taken out and, after natural drying, is baked at a temperature of about 200 ° C. A bond of heptadecafluorodecylsilane is formed on the sample surface, and a film thickness of about 1 nm can be formed in a bonded state as shown in FIG. 1B.
【００１２】短期間で耐腐食性を評価するため、評価促
進試験を行った。遊離炭酸濃度を高め、水温も常温より
高くし、腐食性の高い水質にし、サンプルにその腐食性
の高い水を３ヶ月間流しつづけた。実施例のサンプル面
にはほとんど腐食は発生せず、比較例のサンプル面には
緑青が激しく発生し、腐食されているという結果が得ら
れた。In order to evaluate the corrosion resistance in a short period of time, an evaluation acceleration test was performed. The free carbonic acid concentration was increased, the water temperature was set higher than room temperature, the water quality was set to be highly corrosive, and the highly corrosive water was continuously supplied to the sample for three months. Corrosion hardly occurred on the sample surface of the example, and patina was strongly generated on the sample surface of the comparative example, and the result that the sample surface was corroded was obtained.
【００１３】[0013]
【発明の効果】以上述べたきたように本発明によれば、
給湯機の銅または銅合金の表面に撥水性シリコーン薄膜
形成するため、腐食することがなく、給湯機の初期性能
が長期間維持される。なお、前記撥水性シリコーン被膜
は、前記撥水性シリコーン被膜表面にスケール発生して
も化学結合することがないため、スケールの堆積がな
く、給湯機の性能低下も防ぐ効果もある。As described above, according to the present invention,
Since the water-repellent silicone thin film is formed on the surface of the copper or copper alloy of the water heater, the initial performance of the water heater is maintained for a long time without corrosion. Since the water-repellent silicone film does not chemically bond to the surface of the water-repellent silicone film even when scale is generated, the water-repellent silicone film has no scale deposition and also has an effect of preventing the performance of the water heater from deteriorating.
【図１】 本発明に係る接水部品の水と接する面におけ
る撥水層の形成工程を概念的に示す図であって、シラン
系化合物により撥水層を形成する場合を示すものであ
る。FIG. 1 is a view conceptually showing a step of forming a water-repellent layer on a surface of a water-contacting part according to the present invention which is in contact with water, and shows a case where a water-repellent layer is formed with a silane-based compound.
１…基材、２…撥水層 1. Base material 2. Water repellent layer
Claims (8)
材の少なくとも水と接する面に撥水性シリコーン被膜が
形成されていることを特徴とする耐腐食性給湯機用接水
部品。1. A water-repellent component for a corrosion-resistant water heater, characterized in that a water-repellent silicone coating is formed on at least a surface of the copper or copper alloy substrate of the water-repellent component for water heater that is in contact with water.
の界面にはＭ−Ｏ−Ｓｉ結合が存在することを特徴とす
る請求項１に記載の耐腐食性給湯機用接水部品（Ｍは銅
合金を構成する金属）。2. The water-repellent component for a corrosion-resistant water heater according to claim 1, wherein an MO—Si bond exists at an interface between the substrate and the water-repellent silicone coating. Is a metal constituting copper alloy).
アルキルシランまたは加水分解性フルオロアルキルシラ
ンの脱水縮合物の被膜であることを特徴とする請求項１
または２に記載の耐腐食性給湯機用接水部品。3. The water-repellent silicone coating is a coating of a hydrolyzable alkyl silane or a dehydration condensate of a hydrolyzable fluoroalkyl silane.
Or the wetted parts for a corrosion-resistant water heater according to 2.
徴とする給湯機。4. A water heater comprising the wetted parts according to claim 1.
シリコーン被膜を形成する工程を含むことを特徴とする
耐腐食性給湯機用接水部品の製造方法。5. A method for producing a water-repellent component for a corrosion-resistant water heater, comprising a step of forming a water-repellent silicone coating on at least a surface of the substrate that is in contact with water.
る熱交換機であり、前記熱交換機の完成後に、前記基材
の少なくとも水と接する面に撥水性シリコーン被膜を形
成する工程を行うことを特徴とする耐腐食性給湯機用接
水部品の製造方法。6. The component is a heat exchanger made of a copper or copper alloy substrate, and after completing the heat exchanger, performing a step of forming a water-repellent silicone coating on at least a surface of the substrate that is in contact with water. A method for producing a wetted part for a corrosion-resistant water heater.
水性シリコーン被膜を形成する工程は、基材の少なくと
も水と接する面に疎水性基を有するシリコン系コーテイ
ング剤を適用することにより被膜を形成する工程と、前
記被膜を硬化させる工程とを含む工程であることを特徴
とする請求項５または６に記載の耐腐食性給湯機用接水
部品の製造方法。7. The step of forming a water-repellent silicone coating on at least the surface of the substrate which is in contact with water comprises applying a silicone-based coating agent having a hydrophobic group to at least the surface of the substrate which is in contact with water. The method according to claim 5 or 6, comprising a step of forming and a step of curing the coating.
分解性アルキルシラン、加水分解性フルオロアルキルシ
ラン、前記シランの加水分解物、前記シランの脱水縮合
物の群から選ばれる少なくとも１種であることを特徴と
する請求項７に記載の耐腐食性給湯機用接水部品の製造
方法。8. The silicon-based coating agent is at least one selected from the group consisting of a hydrolyzable alkyl silane, a hydrolyzable fluoroalkyl silane, a hydrolyzate of the silane, and a dehydration condensate of the silane. The method for producing a wetted part for a corrosion-resistant water heater according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11141521A JP2000329411A (en) | 1999-05-21 | 1999-05-21 | Water touching part for corrosion resistant hot water supply apparatus, manufacture thereof and hot water supply apparatus employing it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11141521A JP2000329411A (en) | 1999-05-21 | 1999-05-21 | Water touching part for corrosion resistant hot water supply apparatus, manufacture thereof and hot water supply apparatus employing it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000329411A true JP2000329411A (en) | 2000-11-30 |
Family
ID=15293910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11141521A Pending JP2000329411A (en) | 1999-05-21 | 1999-05-21 | Water touching part for corrosion resistant hot water supply apparatus, manufacture thereof and hot water supply apparatus employing it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000329411A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2428604A (en) * | 2005-08-05 | 2007-02-07 | Visteon Global Tech Inc | Fluorosiloxane anti-foul coating on heat exchanger |
| JP2013174413A (en) * | 2012-02-27 | 2013-09-05 | Mitsubishi Heavy Ind Ltd | Steel member covering layer and surface treatment method for heat transfer tube |
-
1999
- 1999-05-21 JP JP11141521A patent/JP2000329411A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2428604A (en) * | 2005-08-05 | 2007-02-07 | Visteon Global Tech Inc | Fluorosiloxane anti-foul coating on heat exchanger |
| GB2428604B (en) * | 2005-08-05 | 2010-12-08 | Visteon Global Tech Inc | Anti-Fouling coating |
| JP2013174413A (en) * | 2012-02-27 | 2013-09-05 | Mitsubishi Heavy Ind Ltd | Steel member covering layer and surface treatment method for heat transfer tube |
| US10024609B2 (en) | 2012-02-27 | 2018-07-17 | Mitsubishi Heavy Industries, Ltd. | Steel covering layer and method of surface treatment of heat transfer tube |
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