JPS62182266A - Method for sealing pore in plasma-sprayed coating - Google Patents
Method for sealing pore in plasma-sprayed coatingInfo
- Publication number
- JPS62182266A JPS62182266A JP2419886A JP2419886A JPS62182266A JP S62182266 A JPS62182266 A JP S62182266A JP 2419886 A JP2419886 A JP 2419886A JP 2419886 A JP2419886 A JP 2419886A JP S62182266 A JPS62182266 A JP S62182266A
- Authority
- JP
- Japan
- Prior art keywords
- thermal spray
- coating layer
- layer
- powder
- plasma
- 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
- 239000011148 porous material Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 22
- 238000007789 sealing Methods 0.000 title claims description 19
- 238000000576 coating method Methods 0.000 title description 12
- 239000011248 coating agent Substances 0.000 title description 11
- 239000000843 powder Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000011247 coating layer Substances 0.000 claims abstract description 32
- 239000007769 metal material Substances 0.000 claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 238000007750 plasma spraying Methods 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 15
- 239000010410 layer Substances 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 4
- 239000010962 carbon steel Substances 0.000 abstract description 4
- 229910003470 tongbaite Inorganic materials 0.000 abstract description 2
- 229910000599 Cr alloy Inorganic materials 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007751 thermal spraying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔工宜業上の利用分野〕
この発明は溶射被覆の封孔処理方法、更に詳しくは金属
材の表面にコーティングされた溶射被覆の耐食性、耐摩
耗性、耐熱性全向上させるようにした溶射被覆の封孔処
理方法に関するものでおる。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a method for sealing a thermally sprayed coating, and more specifically, to a method for sealing a thermally sprayed coating, and more specifically, to improve the corrosion resistance, abrasion resistance, and heat resistance of a thermally sprayed coating coated on the surface of a metal material. The present invention relates to a method for sealing thermal spray coatings that improves the sealing process.
一収に金属材全ジェットエンジン、ガスタービンの羽、
工具、機械部品等の構成部材として使用する４会には、
耐食性、耐ｊｌ耗性、耐熱性が要求されることから、金
属材の表面に溶射被覆”ｋ ＭｌｉＬで耐食性、耐摩耗
性、耐熱性が得られるようにしていた。All-metal jet engine, gas turbine blades,
There are four types of materials used as components of tools, machine parts, etc.
Since corrosion resistance, abrasion resistance, and heat resistance are required, the surface of the metal material is thermally sprayed to provide corrosion resistance, abrasion resistance, and heat resistance.
これらの特性全金属材に持たせるようにしたコーティン
グ方法として低圧プラズマ溶射法が知られている。A low-pressure plasma spraying method is known as a coating method for imparting these characteristics to all-metal materials.
かかる低圧プラズマ浴射法によって溶射材としてセラミ
ックス系粉末材料を用いて基材となる金属材の表面に溶
射被覆層を形成した湯合、セラミックス系粉末材料は融
点が高く、化繊が低いために金属材表面にコーティング
された溶射被覆１−にはピンホールのような気孔が生じ
、味に耐食性の点で問題があった。また、セラミックス
系粉末材料のうち、窒化物系のものでは、プラズマの高
熱によって液状に溶融されず直接気化即ち昇華してしま
うために溶射被覆層ができにくくなるという難点があっ
た。A thermal spray coating layer is formed on the surface of a base metal material using a ceramic powder material as a thermal spray material by such a low-pressure plasma spraying method. The thermal spray coating 1- coated on the surface of the material had pinhole-like pores, which caused problems in terms of taste and corrosion resistance. Further, among ceramic powder materials, nitride-based materials have the disadvantage that they are not melted into a liquid state by the high heat of plasma but are directly vaporized, that is, sublimated, making it difficult to form a thermal spray coating layer.
このため、セラミックス系粉末材料全使用する場合には
金属粉全混合したもの全溶射材とし、金属粉にバインダ
の役割を果たせるようにしていた。For this reason, when all ceramic powder materials are used, a mixture of all metal powders is used as the all-sprayed material, so that the metal powders can play the role of a binder.
しかし、この場合でも、気孔率は低下するものの零には
ならず、上記唯点が完全には解決されなかった。However, even in this case, although the porosity decreased, it did not become zero, and the above problem was not completely solved.
そこで、この碓点全屏央するために、第３図に示すよう
なレーザ光を利用した溶射被覆の封孔処理方法が従来よ
り川られている。Therefore, in order to completely eliminate this problem, a method of sealing the thermal spray coating using a laser beam as shown in FIG. 3 has been developed.
この溶射破ｊの封孔処理方法は金属材（１）の表面にセ
ラミックス系粉末材料（２）と金属粉（３）全混合した
各射材全低圧プラズマ溶射して形成された溶射破１．シ
！ｍ（４１にＶ−ザ光（５）？照射して溶射被覆層（４
）の気孔（６）全封孔処理するようにした方法である。This method of sealing a thermal spray blast is a thermal spray blast that is formed by low-pressure plasma spraying of a mixture of ceramic powder material (2) and metal powder (3) on the surface of a metal material (1). Shi! m (41) is irradiated with V-za light (5)? to form a thermal spray coating layer (4
This is a method in which the pores (6) of (6) are completely sealed.
〔発明が解決１−ようとする問題点〕
しかしなから、従来のＶ−ザ尤金利用した溶射４）１
ｉｉの封孔処理方法にあっては、溶射被覆層（４）にレ
ーザ光（５）茫第４図（ａ）に示すように照射すると溶
射被覆層（４）は溶融されるが、セラミックス系粉末材
料（２Ｊと金属粉（３）とではＶ−ザ元の吸収能が相違
し、即ちセラミックス系粉末材料（２）でｔｒｌＶ−ザ
光のＩ及収ｔｉピが大きく、金属＃ （３）ではレーザ
光の１及収能が小さいために溶射被覆層（４）全４Ｎ成
するセラミックス系粉末材料（２）はＬ！２ｉ温となり
、分解、溶解或いは昇華し、金属粉（３）はあ１り温度
が上昇せず、溶融１−ないため、第４図（ｂ）に示すよ
うに溶射被覆層（４）の表」が凹凸状となると共に気孔
（６）の封孔処理が充分でないという問題点があった。[Problems that the invention attempts to solve 1] However, the conventional thermal spraying using V-the-additional metal 4) 1
In the sealing method ii, when the thermal spray coating layer (4) is irradiated with a laser beam (5) as shown in FIG. 4(a), the thermal spray coating layer (4) is melted. The powder material (2J) and the metal powder (3) have different absorption capacities of V-the light, that is, the ceramic powder material (2) has a large trlV-the light I absorption ti, and the metal powder (3) In this case, since the power of the laser beam is small, the ceramic powder material (2) consisting of 4N in the thermal spray coating layer (4) reaches a temperature of L!2i, decomposes, melts or sublimates, and the metal powder (3) Since the temperature does not rise and there is no melting, the surface of the sprayed coating layer (4) becomes uneven as shown in Figure 4(b), and the pores (6) are not sufficiently sealed. There was a problem.
この発明は、かかる問題点を解決するためになされたも
ので、溶射被覆層における気孔の封孔処理が充分に行わ
れ、金属材の表面にコーティングされた溶射被覆層の耐
食性、耐摩耗性、耐熱性全向上させることができる溶射
被覆の封孔処理方法ｔ−得ることｔ目的とする。This invention was made to solve such problems, and the pores in the thermal sprayed coating layer are sufficiently sealed, and the thermal sprayed coating layer coated on the surface of the metal material has excellent corrosion resistance, abrasion resistance, and The object of the present invention is to obtain a method for sealing thermal spray coatings that can completely improve heat resistance.
この発明に係る溶射被覆の封孔処理は、基材となる金属
材表面にセラミックス系粉末材料と金属粉を混合した溶
射材で、低圧プラズマ溶射して形成された溶射被覆層ｔ
１低圧雰囲気下に！き、該溶射被覆層に向けてアークを
飛ばして各射被覆層の気孔を封孔処理するように信成し
たものである。The sealing treatment of the thermal spray coating according to the present invention is a thermal spray coating layer t formed by low-pressure plasma spraying with a thermal spray material containing a mixture of ceramic powder material and metal powder on the surface of a metal material serving as a base material.
1 Under a low pressure atmosphere! The method is designed to seal the pores of each sprayed coating layer by firing an arc toward the sprayed coating layer.
この発明においては、基材となる金属材表団にセラミッ
クス系粉末材料と金属粉とを混合した溶射材で、低圧プ
ラズマ溶射して形成された溶射被覆、・−を低圧雰囲気
下に置き、該溶射ｆｔＬ覆層に向けてアークを飛ばして
溶射被覆層表面部分におけるセラミックス系粉末材料の
衣ｕｃＴ ｉ溶解させると共に金属粉を溶、錬させるか
ら、直射被護Ｊ−の表面部分における気孔が（６）属防
の溶融によって消滅し、溶射被４ｙｉｊａが緻密となる
。In this invention, a thermal spray coating formed by low-pressure plasma spraying with a thermal spray material containing a mixture of ceramic powder material and metal powder on a metal surface serving as a base material is placed in a low-pressure atmosphere. Since an arc is ejected toward the thermally sprayed ftL coating layer to melt the coating of ceramic powder material on the surface of the thermal sprayed coating layer, and to melt and smelt the metal powder, the pores on the surface of the directly exposed J- ) It disappears due to the melting of the metal shield, and the thermal spray coating becomes dense.
第１図はこの発明の一実施例を示す説明図、第２図（ａ
）、（ｂ）Ｕこの発明により封孔処理される工程をそれ
ぞル示す説明図でおる。FIG. 1 is an explanatory diagram showing one embodiment of the present invention, and FIG. 2 (a
), (b) U are explanatory views showing the steps of sealing according to the present invention.
図において、（１）は基材となる炭素鋼製の平板な金属
材である。（２）は溶射材の一つである例えば、Ｃｒ２
Ｃ２のセラミックス系粉末材料、（３） ｕ 溶射材の
もう一つである例えば２５ ＮｌＣｙ合金の金属粉、（
４〉は金属材（１）の表面に低圧プラズマ溶射によって
形成さｎｆｃ溶射被覆ｊ−１（６）は溶射被覆ノ裔（４
）内に生じている気孔、（８）は溶射破ｔｉ！ ｊ−（
４）に向けてアーク（９）を飛ばすためのアーク棒、叫
はアークによって封孔処理された溶融溶射被覆層である
。In the figure, (1) is a flat metal material made of carbon steel that serves as a base material. (2) is one of the thermal spray materials, for example, Cr2
C2 ceramic powder material, (3) u metal powder of 25 NlCy alloy, which is another thermal spraying material, (
4> is formed on the surface of metal material (1) by low-pressure plasma spraying, and NFC sprayed coating j-1 (6) is a descendant of the sprayed coating (4).
), the pores (8) are formed by thermal spraying ti! j-(
4) The arc rod for ejecting the arc (9) toward the target is a molten sprayed coating layer that has been sealed by the arc.
次に、この発明方法について説明する。Next, the method of this invention will be explained.
まず、その前に金属材表面に溶射被覆層全形成する方法
について説明する。First, a method for forming the entire thermal spray coating layer on the surface of the metal material will be explained.
炭素鋼製の金属材（１）ｔプラズマ溶射雰囲気圧２００
〜２５０ Ｔｏｒｒ Ｏ下に置き、プラズマ出力全６
５ＯＡ×８０ｖ 程度にし、プラズマガスにＡｒと５％
）１２ノ混合ガス金用い、Ｃｒ３Ｃ２のセラミックス系
粉末材料（２）と２５ ＮｉＣｒ合金の金属＃（３）と
ｔ均一に混合した溶射材をプラズマジェットにして曾属
材（１）の表面に噴射して低圧プラズマ溶射を行う。Carbon steel metal material (1) t plasma spraying atmospheric pressure 200
Placed under ~250 Torr O, plasma output total 6
Approximately 5OA x 80V, and 5% Ar and 5% plasma gas.
) Using 12 mixed gas gold, spraying material uniformly mixed with Cr3C2 ceramic powder material (2) and 25 NiCr alloy metal #3 is sprayed onto the surface of the metal material (1) using a plasma jet. Perform low-pressure plasma spraying.
そうすると、金属材（１）の表面にはＭ１図に示すよう
に厚さが約２００〜２５０μＩｎの溶射被覆層（４）が
形成される。Then, a thermal spray coating layer (4) having a thickness of about 200 to 250 μIn is formed on the surface of the metal material (1) as shown in Fig. M1.
次に、第２図（ａ）に示す溶射被覆層（４）を有する金
属材（４）を０．０１ Ｔｏｒｒ 程度の低圧雰囲気
下に置いて、アーク棒（８）より溶射ｍ偵層（４）の表
面に向けてアーク（９）を飛ばして気孔（６）の封孔処
理上行う。そうすると、溶射破一層（４）の表面におけ
るセラミックス系粉末材料（２）は表面部分が少し溶解
するだけで固定状類を保ち、金属粉（３）が溶融されて
溶射被覆層（４）の表面部分中の気孔（６）を埋めるこ
ととなる。従って、溶融溶射破；ｊ層００の表面部分は
緻密な被覆となって１１吋食性、耐摩耗性、耐熱性が向
上する。Next, the metal material (4) having the thermally sprayed coating layer (4) shown in FIG. ) to seal the pores (6). Then, the ceramic powder material (2) on the surface of the thermal spray coating layer (4) maintains its fixed state with only a small portion of the surface melting, and the metal powder (3) is melted and the surface of the thermal spray coating layer (4) is melted. This will fill the pores (6) in the part. Therefore, the surface portion of the melt-sprayed layer 00 becomes a dense coating, improving corrosion resistance, abrasion resistance, and heat resistance.
これは、セラミックス系粉末材料（２） ｉｄ金属粉（
３）に比べて融薇か動く、金属粉（３）が溶融する温度
ではセラミックス系粉末材料（２）は溶解しないためで
ある。This is ceramic powder material (2) id metal powder (
This is because the ceramic powder material (2) does not melt at the temperature at which the metal powder (3) melts, which causes the melt to move as compared to 3).
なお、アーク（９）？飛び出させるアーク棒（８）の移
動は金属材（１）の表面に形成され之溶射坂覆層（４）
の表面全体が溶融されるように行われることは勿論であ
る。Furthermore, arc (9)? The movement of the arc rod (8) to be ejected is caused by the sprayed slope covering layer (4) formed on the surface of the metal material (1).
Of course, the process is carried out so that the entire surface of the surface is melted.
次に、この発明の具体的な実施例上説明する。Next, a concrete example of the present invention will be explained.
この実施例に使用された基材となる金属材（１）の材質
は炭素鋼、厚さは８順である。The metal material (1) serving as the base material used in this example is made of carbon steel and has a thickness of 8.
筐た、金属材（１）の表面に溶射被覆＋ｆｉ（４） ｋ
形［ｉ２ Ｌ。Thermal spray coating + fi (4) k on the surface of the metal material (1)
Form [i2 L.
た低圧プラズマ溶射条件は次の通りである。The low pressure plasma spraying conditions were as follows.
溶射材はＣｒ３Ｃ２ＮｉＣｒ粉末、プラズマ出カバ６５
０ＡＸ３ＱＶ、プラズマガスはＡｒと５％Ｈ２の混合ガ
ス、溶射雰囲戒圧は２５０’ｌ”ｏｒｒである。杉或さ
ｉｔた１容射１１１１１ｉ ｄ ’ｍ （４）の厚さｒ
ｒｉ２５０ｚｏｙ＋ テある。Thermal spraying material is Cr3C2NiCr powder, plasma output cover 65
0AX3QV, the plasma gas is a mixed gas of Ar and 5% H2, and the thermal spraying atmospheric pressure is 250'l''orr.
There is ri250zoy+.
更に、１氏上プラズマ、・容射抜に行った低圧′ＮＮ気
気下おけるアークによる封孔・港昔里姿注は次の通りで
ある。Furthermore, the details of the hole sealing by arc under low-pressure NN air and Minato Machizato's appearance are as follows.
アーク（９）のアークル流は２００ Ａ、アーク直圧は
６０■、低圧雰囲気圧１−ＬＯ，０１Ｔｏｒｒ、アーク
棒（８）の停動速Ｗ ｕ ｏ、 ３ ｍ ／ ｍｉｎで
ある。The arc flow of the arc (9) is 200 A, the arc direct pressure is 60 cm, the low atmospheric pressure is 1-LO,01 Torr, and the stopping speed of the arc rod (8) is 3 m/min.
上記条件の下で、金属材（１）の表面に低圧プラズマ溶
射して形成された溶射被覆層（４）の表面に向けてアー
ク（９）’を飛ばして溶射被＆層（４）の表面部分の気
孔（６）の封孔処理を実施した。Under the above conditions, an arc (9)' is emitted toward the surface of the thermal spray coating layer (4) formed by low-pressure plasma spraying on the surface of the metal material (1). The pores (6) in the portion were sealed.
カカルアークの封孔処理により、低圧プラズマ溶射て形
成さｎた溶射被護ノｍ （４）の表面部分における気孔
（６）は全て消滅し、成品な被覆が得られた。By the pore sealing treatment of Kakaru Arc, all the pores (6) on the surface portion of the thermally sprayed coating (4) formed by low-pressure plasma spraying disappeared, and a finished coating was obtained.
下記の表は従来のンーザ元により溶射被積層全封孔処理
したものと、本願発明の実施例によるものとのｍ食試験
の結果を示すものである。The table below shows the results of the m-corrosion test for the thermally sprayed, laminated, and completely sealed materials using a conventional laser source and the materials according to the embodiments of the present invention.
この腐食試験は液温２０℃の５％ＨＣ１に本発明方法に
より形成された溶射被覆層を有する金属材と従来方法に
より形成された溶射被覆層を有する金属材とを１年間浸
漬して腐食減ｔ’ｒ測定したものである。This corrosion test was conducted by immersing a metal material having a thermally sprayed coating layer formed by the method of the present invention and a metal material having a thermally sprayed coating layer formed by a conventional method in 5% HC1 at a liquid temperature of 20°C for one year to reduce corrosion. t'r was measured.
表
この表から従来方法によれば、腐食減量が８．８ｍ／ｙ
ｅａｒであるのに対し、本発明方法によれば、腐食減量
がＱ、 １ ｍ ／ ｙｅａｒであり、溶射被覆ｊ−の
耐食性か著しく向上していることがわかる。また、耐食
性の向上に伴い耐摩耗性、耐熱性が向上していることも
勿論である。From this table, according to the conventional method, the corrosion loss was 8.8 m/y.
In contrast, according to the method of the present invention, the corrosion weight loss was Q, 1 m/year, indicating that the corrosion resistance of the thermal spray coating J- was significantly improved. Furthermore, it goes without saying that the wear resistance and heat resistance are improved along with the improvement in corrosion resistance.
この発明は以上説明したとおり、基材となる金属材表面
にセラミックス系粉末材料と金属粉と全混合した溶射材
を低圧プラズマで溶射して形成された溶射被覆層全低圧
雰囲気下に置き、該溶射被覆層に向けてアーク會飛ばし
て溶射彼ｒｆ局表面におけるセラミックス系粉末材料の
表面部分全溶解させると共に金属粉全溶融させるように
したので、溶射被蝿層の表面部分における気孔が金属粉
の溶融によって消滅し、溶射被覆ｊ−が緻密となって耐
食性、耐摩耗性、耐熱性が向上するという効果がある。As explained above, the present invention is a thermal spray coating layer formed by spraying a thermal spray material completely mixed with ceramic powder material and metal powder onto the surface of a metal material serving as a base material using low pressure plasma, and placing the entire thermal spray coating layer under a low pressure atmosphere. By blowing an arc toward the thermal spray coating layer, the surface of the ceramic powder material on the surface of the thermal spray RF beam was completely melted, and the metal powder was completely melted, so that the pores on the surface of the thermal spray coating layer were It disappears by melting, and the sprayed coating becomes denser, which has the effect of improving corrosion resistance, abrasion resistance, and heat resistance.
第１図は、この発明の一実施沙ＩＩを示す説明図、第２
図（ａ）、（ｂ）はこの発明により封孔処理される工程
をそ几ぞれ示す説明図、第６図は従来の溶射被覆の封孔
処理方法を示す説明図、第４図（ａ）、 （ｂ）に同封
孔処理により封孔処理される工程ケそれぞれ示す説明図
でおる。
図において、（１）は金属材、（２）はセラミックス系
粉末材料、（３）は金属粉、（４）は溶射彼覆ｊ替、（
６）は気孔、（９）はアークである。
代理人 弁理士 佐 藤 正 年
第１１災
第２図
（ａ） （ｂ）Ｉ
第４図FIG. 1 is an explanatory diagram showing one embodiment II of the present invention, and FIG.
Figures (a) and (b) are explanatory diagrams showing the steps of sealing according to the present invention, Figure 6 is an explanatory diagram showing a conventional sealing method for thermal spray coating, and Figure 4 (a) ) and (b) are explanatory diagrams each showing the process of sealing by the hole sealing process. In the figure, (1) is a metal material, (2) is a ceramic powder material, (3) is a metal powder, (4) is a thermal spray coating, (
6) is a pore, and (9) is an arc. Agent Patent Attorney Tadashi Sato Figure 2 (a) (b) I Figure 4
Claims (1)
粉を混合した溶射材で低圧プラズマ溶射して形成された
溶射被覆層を低圧雰囲気下に置き、該溶射被覆層に向け
てアークを飛ばして溶射被覆層の気孔を封孔処理するよ
うにしたことを特徴とする溶射被覆の封孔処理方法。A thermal spray coating layer formed by low-pressure plasma spraying on the surface of a metal material, which is a base material, with a thermal spray material containing a mixture of ceramic powder material and metal powder is placed in a low-pressure atmosphere, and an arc is directed toward the thermal spray coating layer. 1. A method for sealing a thermal spray coating, comprising sealing pores in a thermal spray coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2419886A JPS62182266A (en) | 1986-02-07 | 1986-02-07 | Method for sealing pore in plasma-sprayed coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2419886A JPS62182266A (en) | 1986-02-07 | 1986-02-07 | Method for sealing pore in plasma-sprayed coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62182266A true JPS62182266A (en) | 1987-08-10 |
Family
ID=12131625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2419886A Pending JPS62182266A (en) | 1986-02-07 | 1986-02-07 | Method for sealing pore in plasma-sprayed coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62182266A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0427189U (en) * | 1990-06-27 | 1992-03-04 | ||
| WO1997033012A1 (en) * | 1996-03-05 | 1997-09-12 | Sprayform Holdings Limited | Filling porosity or voids in articles formed in spray deposition processes |
-
1986
- 1986-02-07 JP JP2419886A patent/JPS62182266A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0427189U (en) * | 1990-06-27 | 1992-03-04 | ||
| WO1997033012A1 (en) * | 1996-03-05 | 1997-09-12 | Sprayform Holdings Limited | Filling porosity or voids in articles formed in spray deposition processes |
| US6074737A (en) * | 1996-03-05 | 2000-06-13 | Sprayform Holdings Limited | Filling porosity or voids in articles formed in spray deposition processes |
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