JPS6323269B2 - - Google Patents
Info
- Publication number
- JPS6323269B2 JPS6323269B2 JP12243682A JP12243682A JPS6323269B2 JP S6323269 B2 JPS6323269 B2 JP S6323269B2 JP 12243682 A JP12243682 A JP 12243682A JP 12243682 A JP12243682 A JP 12243682A JP S6323269 B2 JPS6323269 B2 JP S6323269B2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- metal structure
- metal
- ceramic coating
- film
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 238000005524 ceramic coating Methods 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 238000003486 chemical etching Methods 0.000 claims description 3
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 238000005530 etching Methods 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 238000007747 plating Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 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 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 150000001845 chromium compounds Chemical class 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Chemically Coating (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】
本発明は金属の表面にセラミツクの被膜をもつ
て被着構成してなるセラミツク被膜金属構造体に
関し、特にこの金属表面上でのセラミツク被膜の
結合力の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ceramic-coated metal structure comprising a ceramic coating adhered to a metal surface, and particularly relates to improving the bonding strength of the ceramic coating on the metal surface. be.
最近、耐熱性、耐食性或いは耐摩性等に関連し
て金属構造体の表面にセラミツクの被膜を被着構
成するため、種々の研究開発が試みられている状
況にある。従来のこのセラミツク被覆金属構造体
は、例えば第２図に図示するようにサンド・ブラ
スト処理によつて粗面構造となした金属構造体１
１の表面１２に、直接セラミツクの被膜１３を被
着して構成していたに過ぎず、従つてこのサン
ド・ブラスト処理による凹凸状からなる粗面構造
により単に表面積を増したのみの態様となるた
め、概して金属表面１２でのセラミツク被膜１３
の結合力が不充分という傾向にあり、且つバラツ
キとも相埃つてしばしば剥離、亀裂、或いはピン
ホール等の発生を余儀なくされ、一層の改善が望
まれる状況にあつた。 Recently, various research and development efforts have been made to form ceramic coatings on the surfaces of metal structures in relation to heat resistance, corrosion resistance, abrasion resistance, etc. This conventional ceramic-coated metal structure includes, for example, a metal structure 1 having a rough surface structure by sand blasting, as shown in FIG.
The ceramic film 13 was simply applied directly to the surface 12 of the 1, and therefore the surface area was simply increased by the rough surface structure consisting of the unevenness created by the sandblasting process. Therefore, generally the ceramic coating 13 on the metal surface 12
The bonding strength tends to be insufficient, and due to variations and dust, peeling, cracking, pinholes, etc. often occur, and further improvements are desired.
本発明の目的はこのような問題を省除したセラ
ミツク被覆金属構造体を提供することで、金属構
造体の表面上に中間層として多孔性からなる鍍金
被膜を敷設介在せしめ、且つセラミツク被膜自体
の靭性及び緻密性とに相乗して極めて簡易且つ効
果的に構成しうるものである。 The object of the present invention is to provide a ceramic-coated metal structure that eliminates such problems, and in which a porous plating film is laid as an intermediate layer on the surface of the metal structure, and the ceramic film itself is Combined with toughness and compactness, it can be constructed extremely simply and effectively.
以下本発明の実施例を第１図について詳述すれ
ば、棒、管、板及び帯等の材料或いは各種成型さ
れた製品形状を有する金属構造体１は、例えば塩
酸水溶液或いはシアン水溶液等により予め化学腐
蝕処理を行い、その表面１′上に形成された該腐
蝕処理液によつて容易に溶解し易い金属と溶解し
難い金属との少なくとも２種以上の合金（例えば
Ni基或いはFe基によるAl，Cd，Cu，Sn，Znと
のそれぞれの合金、又はCr基によるCd，Snとの
それぞれの合金）からなる多孔性鍍金被膜２の表
面２′に、クローム化合物の焼成変換した酸化ク
ロームによつて化学結合されたSiO2、Cr2O3及び
Al2O3からなる組成を有するセラミツクの被膜３
を被着重合して構成してなるものである。 Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 1. A metal structure 1 having materials such as rods, tubes, plates, and bands or having various molded product shapes is prepared in advance by using, for example, an aqueous solution of hydrochloric acid or an aqueous cyanide solution. An alloy of at least two kinds of metals (for example, metals that are easily soluble and metals that are difficult to dissolve) formed on the surface 1' by chemical etching treatment and the etching solution formed on the surface 1'
A chromium compound is applied to the surface 2' of the porous plating film 2 consisting of Ni-based or Fe-based alloys with Al, Cd, Cu, Sn, and Zn, or Cr-based alloys with Cd and Sn. SiO 2 , Cr 2 O 3 and chemically bonded by chromium oxide converted by firing
Ceramic coating 3 having a composition consisting of Al 2 O 3
It is formed by depositing and polymerizing.
このセラミツク被膜３の被着に際しては、可溶
性クローム化合物の濃水溶液（例えばH2CrO4）
に珪石（SiO2）、酸化クローム（Cr2O3）及び溶
融アルミナ（α−Al2O3）からなる微粉末を添加
し、更に少量の界面活性剤（例えば商品名アデカ
NPE）を加えて充分に撹拌混成した懸濁液中に
前記金属構造体１を浸漬するか、或いは刷毛、ス
プレー等により塗着せしめ、次いで一時乾燥した
後にこの塗着部を460℃以上に加熱処理すること
によつて、微粒子相互及び金属構造体１の表面
１′に介在するクローム酸化物が各組成物と化学
結合して靭性及び緻密性とに富んだセラミツクの
被膜３を構成してなるものである。 When applying this ceramic coating 3, a concentrated aqueous solution of a soluble chromium compound (for example, H 2 CrO 4 ) is used.
Fine powder consisting of silica stone (SiO 2 ), chromium oxide (Cr 2 O 3 ) and molten alumina (α-Al 2 O 3 ) is added to
The metal structure 1 is immersed in a suspension in which NPE) is added and thoroughly stirred, or the metal structure 1 is coated with a brush, spray, etc., and then, after temporarily drying, the coated part is heated to 460°C or higher. Through the treatment, the chromium oxide interposed between the fine particles and on the surface 1' of the metal structure 1 chemically bonds with each composition to form a ceramic coating 3 rich in toughness and denseness. It is something.
なお、この被膜３の組成比は、好ましくは
SiO2が15wt％乃至25wt％、Cr2O3が30wt％乃至
50wt％、Al2O3が35wt％乃至45wt％の範囲であ
る。 Note that the composition ratio of this coating 3 is preferably
SiO 2 is 15wt% to 25wt%, Cr 2 O 3 is 30wt% to
50wt%, and Al2O3 ranges from 35wt% to 45wt%.
以上の通り、本発明によれば、単に化学腐蝕処
理により中間層として敷設介在した鍍金被膜２
を、特に多孔性の被膜構造となさしめ、該被膜の
表面２′に前記セラミツクの被膜３を被着重合し
てなるため、前記表面２′の内部まで無数探透状
に形成された多孔効果によつて、被着重合したセ
ラミツクの被膜３との結合力を著しく強力となす
結果となり、従つて剥離、亀裂或いはピンホール
等の発生の憂いを極度に軽減することができるも
のである。 As described above, according to the present invention, the plating film 2 is simply laid down as an intermediate layer by chemical etching treatment.
is made into a particularly porous film structure, and the ceramic film 3 is deposited and polymerized on the surface 2' of the film, so that the pores are formed in a countless penetrating manner to the inside of the surface 2'. As a result, the bonding force between the deposited and polymerized ceramic coating 3 becomes extremely strong, and therefore, the occurrence of peeling, cracking, pinholes, etc. can be extremely reduced.
第１図は本発明の一実施例に係るセラミツク被
覆金属構造体の一部拡大断面図、第２図は従来例
の一部拡大断面図である。
１……金属構造体、１′……表面、２……多孔
性鍍金被膜、２′……表面、３……セラミツクの
被膜。
FIG. 1 is a partially enlarged sectional view of a ceramic-coated metal structure according to an embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Metal structure, 1'... Surface, 2... Porous plating film, 2'... Surface, 3... Ceramic coating.
Claims (1)
１′上に形成された該腐蝕処理液により容易に溶
解し易い金属と溶解し難い金属との少なくとも２
種以上の合金からなる多孔性鍍金被膜２の表面
２′に、クローム化合物の焼成変換した酸化クロ
ームによつて化学結合されたSiO2、Cr2O3及び
Al2O3からなる組成を有するセラミツクの被膜３
を被着重合して構成せしめてなることを特徴とす
るセラミツク被覆金属構造体。1 At least two metals, a metal that is easily dissolved by the etching solution and a metal that is difficult to dissolve, formed on the surface 1' of the metal structure 1 by chemical etching treatment.
SiO2 , Cr2O3 and
Ceramic coating 3 having a composition consisting of Al 2 O 3
What is claimed is: 1. A ceramic-coated metal structure characterized by being formed by depositing and polymerizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12243682A JPS5913073A (en) | 1982-07-14 | 1982-07-14 | Metallic structural body coated with ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12243682A JPS5913073A (en) | 1982-07-14 | 1982-07-14 | Metallic structural body coated with ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5913073A JPS5913073A (en) | 1984-01-23 |
| JPS6323269B2 true JPS6323269B2 (en) | 1988-05-16 |
Family
ID=14835798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12243682A Granted JPS5913073A (en) | 1982-07-14 | 1982-07-14 | Metallic structural body coated with ceramic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913073A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0176464U (en) * | 1987-11-11 | 1989-05-23 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5360634A (en) * | 1988-12-05 | 1994-11-01 | Adiabatics, Inc. | Composition and methods for densifying refractory oxide coatings |
| EP2006420A1 (en) * | 2007-06-22 | 2008-12-24 | Danmarks Tekniske Universitet - DTU | A microporous layer for lowering friction in metal forming processes |
| CN101992244A (en) * | 2009-08-13 | 2011-03-30 | 深圳富泰宏精密工业有限公司 | Metallic high-temperature forming die and manufacturing method thereof |
| CN106660106B (en) * | 2014-09-29 | 2019-05-07 | 日立金属株式会社 | Manufacturing method of Ni-based superalloy |
| JP6581592B2 (en) * | 2014-10-24 | 2019-09-25 | イビデン株式会社 | Method for producing coated metal substrate |
-
1982
- 1982-07-14 JP JP12243682A patent/JPS5913073A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0176464U (en) * | 1987-11-11 | 1989-05-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5913073A (en) | 1984-01-23 |
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