JPH04107250A - Surface preparation for forming sprayed coating - Google Patents
Surface preparation for forming sprayed coatingInfo
- Publication number
- JPH04107250A JPH04107250A JP22514290A JP22514290A JPH04107250A JP H04107250 A JPH04107250 A JP H04107250A JP 22514290 A JP22514290 A JP 22514290A JP 22514290 A JP22514290 A JP 22514290A JP H04107250 A JPH04107250 A JP H04107250A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- concrete
- layer
- thermal spraying
- resistant mortar
- 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
- 239000011248 coating agent Substances 0.000 title claims description 3
- 238000000576 coating method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title abstract 3
- 239000010410 layer Substances 0.000 claims abstract description 31
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 24
- 238000007751 thermal spraying Methods 0.000 claims abstract description 24
- 239000011247 coating layer Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 24
- 239000002184 metal Substances 0.000 abstract description 10
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000000919 ceramic Substances 0.000 abstract description 7
- 230000008021 deposition Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 18
- 239000004568 cement Substances 0.000 description 9
- 230000006866 deterioration Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004381 surface treatment Methods 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 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、コンクリート表面に金属又はセラミックスを
溶射する際の下地処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for treating a surface of concrete when spraying metal or ceramics onto the surface.
（従来の技術）
従来、装飾性を高めるためにコンクリートの表面に金属
とかセラミックスを溶射することが提案されており、例
えば、特開昭６３−４７４４７号公報に開示される建築
用ブロックがある。(Prior Art) Conventionally, it has been proposed to thermally spray metal or ceramics onto the surface of concrete in order to improve its decorativeness. For example, there is a building block disclosed in Japanese Patent Application Laid-Open No. 63-47447.
即ち、かかる建築用ブロックは母材として気泡コンクリ
ートを用い、この気泡コンクリートの表面に樹脂を介し
てセメント層を形成し、このセメント層の表面に金属溶
射による被膜層を形成するようになっている。That is, such building blocks use aerated concrete as a base material, a cement layer is formed on the surface of this aerated concrete via a resin, and a coating layer is formed by metal spraying on the surface of this cement layer. .
（発明が解決しようとする課題）
しかしながら、溶射による被膜層を形成する場合、溶射
ガンを用いて金属溶射が行われるが、この溶射ガンの噴
出孔から噴出した金属粉末粒子は、この噴出孔周縁に設
けられた燃焼孔から生ずる燃焼炎によって加熱され、こ
の加熱溶融状態となったものが上記セメント層の表面に
固着されることになる。(Problem to be Solved by the Invention) However, when forming a coating layer by thermal spraying, metal spraying is performed using a thermal spray gun, but the metal powder particles ejected from the nozzle of this thermal spray gun are It is heated by the combustion flame generated from the combustion hole provided in the cement layer, and this heated and molten material is fixed to the surface of the cement layer.
従って、溶射されるときの温度は著しく高温となり、上
記気泡コンクリートの表面を樹脂を介して覆うセメント
層の温度は著しく高くなってしまつＯ
このため、セメント層の水和組織が熱により破壊されて
劣化が発生し、溶射皮膜層の接着性が著しく低下されて
しまう。Therefore, the temperature during thermal spraying becomes extremely high, and the temperature of the cement layer that covers the surface of the aerated concrete through the resin becomes extremely high. Therefore, the hydration structure of the cement layer is destroyed by the heat. This causes deterioration and the adhesion of the sprayed coating layer is significantly reduced.
特に、金属溶射と同様にセラミックスを溶射する場合、
コンクリート表面温度は数１００℃以上となって、皮膜
層の接着性低下が顕著になる。In particular, when spraying ceramics as well as metal spraying,
When the concrete surface temperature reaches several hundred degrees centigrade or more, the adhesiveness of the film layer decreases significantly.
また、上記セメント層の下地となる樹脂も熱に対して弱
く、樹脂の劣化が来されてしまうという課題があった。Furthermore, the resin that forms the base of the cement layer is also sensitive to heat, resulting in deterioration of the resin.
そこで、本発明はかかる従来の課題に鑑みてなされたも
ので、金属又はセラミックスをコンクリート表面に溶射
する際に、このコンクリート表面が熱劣化を生ずるのを
抑制して、溶射皮膜層の接着性の向上を図ることができ
る溶射皮膜形成のための下地処理方法を提供することを
目的とする。Therefore, the present invention has been made in view of such conventional problems, and it suppresses thermal deterioration of the concrete surface when thermally spraying metals or ceramics onto the concrete surface, and improves the adhesion of the thermally sprayed coating layer. It is an object of the present invention to provide a method for treating a base for forming a thermal spray coating, which can improve the performance of the thermal spray coating.
（課題を解決するための手段）
かかる目的を達成するために本発明は、コンクリートの
表面に耐熱モルタル層を形成する下地処理工程と、この
下地処理工程で形成された耐熱モルタル層の上に溶射に
よる被膜層を形成する溶射工程とを備える方法とする。(Means for Solving the Problems) In order to achieve the above object, the present invention includes a base treatment step for forming a heat-resistant mortar layer on the surface of concrete, and a thermal spraying process on the heat-resistant mortar layer formed in this base treatment step. The method includes a thermal spraying step of forming a coating layer by.
（作用）
以上の構成により本発明の溶射皮膜形成のための下地処
理方法にあっては、下地処理工程によりコンクリートの
表面に耐熱モルタル層を形成し、この耐熱モルタル層の
上に溶射による被膜層を形成するようにしたので、上記
耐熱モルタル層により溶射皮膜形成時の高熱がコンクリ
ート表面に及ぶのを著しく抑制することができるため、
コンクリートの劣化を防止し、もって、溶射被膜層の接
着性が著しく向上されることになる。(Function) According to the base treatment method for forming a thermal spray coating of the present invention with the above configuration, a heat-resistant mortar layer is formed on the surface of concrete in the base treatment step, and a coating layer is formed by thermal spraying on top of this heat-resistant mortar layer. Since the above heat-resistant mortar layer can significantly suppress the high heat applied to the concrete surface during the formation of the thermal spray coating,
Deterioration of the concrete is prevented, and the adhesion of the sprayed coating layer is thereby significantly improved.
（実施例） 以下、本発明の実施例を図に基づいて詳細に説明する。(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第１図、第２図は本発明にかかる溶射皮膜形成のための
下地処理方法の一実施例を示し、第１図は下地処理工程
を示す説明図、第２図は溶射工程を示す説明図である。1 and 2 show an embodiment of the base treatment method for forming a thermal spray coating according to the present invention, FIG. 1 is an explanatory diagram showing the base treatment process, and FIG. 2 is an explanatory diagram showing the thermal spraying process. It is.
即ち、本実施例の溶射皮膜形成のための下地処理方法で
は、まず、第１図に示す下地処理工程によって、コンク
リート１０の表面に耐熱モルタル層１２を形成する。That is, in the base treatment method for forming a thermal spray coating of this embodiment, first, a heat-resistant mortar layer 12 is formed on the surface of concrete 10 by the base treatment step shown in FIG.
この耐熱モルタル層１２に用いられるモルタルは、その
主成分を構成するセメントとしてアルミナセメントを使
用し、かつ、これに混入される骨材としてシャモット、
コランダム、ボーキサイトを使用し、このときの水セメ
ント比を３５％とした。The mortar used for this heat-resistant mortar layer 12 uses alumina cement as its main component, and chamotte and chamotte as aggregates mixed into it.
Corundum and bauxite were used, and the water-cement ratio was 35%.
また、上記耐熱モルタル層１２は、本例では１〜２（７
）程度の厚さをもって形成した。すなわち、あまり薄す
ぎると充分な遮熱効果を発揮することができず、また逆
に厚すぎても厚さを増したわりに遮熱効果ののびが少な
く、効率的でないからである。この厚さは下地となるコ
ンクリートの種類等によって任意に設定されるものでこ
の数値に限定されるものではない。Further, in this example, the heat-resistant mortar layer 12 has a thickness of 1 to 2 (7
) thickness. That is, if it is too thin, it will not be able to exhibit a sufficient heat shielding effect, and if it is too thick, the heat shielding effect will not extend as much despite the increased thickness, making it inefficient. This thickness is arbitrarily set depending on the type of concrete used as the base, etc., and is not limited to this value.
次に、第２図に示す溶射工程では、溶射ガン１４を用い
て上記耐熱モルタル層１２の上から金属又はセラミック
スを溶射し、この金属又はセラミックスによる被膜層１
６を形成する。Next, in the thermal spraying step shown in FIG. 2, a thermal spraying gun 14 is used to thermally spray metal or ceramics from above the heat-resistant mortar layer 12, and a coating layer 1 of this metal or ceramics is formed.
form 6.
このときの溶射工程では、上記溶射ガン１４により溶射
しようとする粉末粒子を火炎により加熱して溶融状態と
し、これを上記耐熱モルタル層１２の表面に固着させる
ことにより行われる。In this thermal spraying process, the powder particles to be thermally sprayed by the thermal spraying gun 14 are heated by flame to a molten state, and this is fixed to the surface of the heat-resistant mortar layer 12.
以上の下地処理工程および溶射工程を経て行われる本実
施例の下地処理方法では、溶射工程で形成される皮膜層
１６の前段階で、コンクリート１０表面に耐熱モルタル
層１２が形成されるので、この耐熱モルタル層１２によ
りコンクリート１０表面を熱から保護した状態で上記溶
射工程を行うことができる。In the surface treatment method of this embodiment, which is carried out through the above-mentioned surface treatment process and thermal spraying process, the heat-resistant mortar layer 12 is formed on the surface of the concrete 10 before the coating layer 16 is formed in the thermal spraying process. The thermal spraying process can be performed while the surface of the concrete 10 is protected from heat by the heat-resistant mortar layer 12.
従って、前記溶射工程を行う際に、上記耐熱モルタル層
１２により溶射皮膜形成時の高熱がコンクリート１０の
表面に及ぶのを著しく抑制することができるようになり
、このためコンクリート１０の劣化を防止し、もって、
溶射被膜の接着性が著しく向上されることになる。Therefore, when performing the thermal spraying process, the heat-resistant mortar layer 12 can significantly suppress the high heat during the formation of the thermal spray coating from reaching the surface of the concrete 10, thereby preventing deterioration of the concrete 10. , have it,
The adhesion of the sprayed coating will be significantly improved.
（発明の効果）
以上説明したように本発明の溶射被膜形成のための下地
処理方法にあっては、コンクリートの表面に耐熱モルタ
ル層を形成する下地処理工程と、この下地処理工程で形
成された耐熱モルタル層の上に溶射被膜を形成する溶射
工程とを備えたので、溶射工程の前段階で形成される耐
熱モルタル層により、コンクリート表面への遮熱性を著
しく向上し、溶射工程において溶射皮膜層の接着性を著
しく向上することができる。(Effects of the Invention) As explained above, the base treatment method for forming a thermal spray coating of the present invention includes a base treatment step of forming a heat-resistant mortar layer on the surface of concrete, and a layer of heat-resistant mortar formed in this base treatment step. The thermal spraying process forms a thermal spray coating on the heat-resistant mortar layer, so the heat-resistant mortar layer formed before the thermal spraying process significantly improves the heat shielding properties of the concrete surface, and the thermal spray coating layer is formed in the thermal spraying process. can significantly improve the adhesion of
第１図は本発明にかかる溶射皮膜形成のための下地処理
方法で行われる下地処理工程を示す説明図、第２図は本
発明で行われる溶射工程を示す説明図である。
第１図
１０・・・・・コンクリート
１２・・・・・耐熱モルタル層
１４・・−・溶射ガン
１６・・・・・溶射皮膜層
第２図FIG. 1 is an explanatory diagram showing a base treatment step performed in the base treatment method for forming a thermal spray coating according to the present invention, and FIG. 2 is an explanatory diagram showing a thermal spraying process performed in the present invention. Fig. 1 10... Concrete 12... Heat-resistant mortar layer 14... Thermal spray gun 16... Thermal spray coating layer Fig. 2
Claims (1)
理工程と、 この下地処理工程で形成された耐熱モルタル層の上に、
溶射による被膜層を形成する溶射工程とを備えたことを
特徴とする溶射被膜形成のための下地処理方法。[Claims] A base treatment step for forming a heat-resistant mortar layer on the surface of concrete, and on top of the heat-resistant mortar layer formed in this base treatment step,
1. A method for treating a base for forming a thermally sprayed coating, comprising: a thermal spraying process for forming a coating layer by thermal spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22514290A JPH04107250A (en) | 1990-08-29 | 1990-08-29 | Surface preparation for forming sprayed coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22514290A JPH04107250A (en) | 1990-08-29 | 1990-08-29 | Surface preparation for forming sprayed coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04107250A true JPH04107250A (en) | 1992-04-08 |
Family
ID=16824611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22514290A Pending JPH04107250A (en) | 1990-08-29 | 1990-08-29 | Surface preparation for forming sprayed coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04107250A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383353A (en) * | 1986-09-24 | 1988-04-14 | 岩本 秀次 | Block for decorating building and its production |
-
1990
- 1990-08-29 JP JP22514290A patent/JPH04107250A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383353A (en) * | 1986-09-24 | 1988-04-14 | 岩本 秀次 | Block for decorating building and its production |
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