JPH0351786B2 - - Google Patents
Info
- Publication number
- JPH0351786B2 JPH0351786B2 JP60073084A JP7308485A JPH0351786B2 JP H0351786 B2 JPH0351786 B2 JP H0351786B2 JP 60073084 A JP60073084 A JP 60073084A JP 7308485 A JP7308485 A JP 7308485A JP H0351786 B2 JPH0351786 B2 JP H0351786B2
- Authority
- JP
- Japan
- Prior art keywords
- thermal
- sprayed
- plate
- thermal spray
- thin plate
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 26
- 238000007751 thermal spraying Methods 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000005422 blasting Methods 0.000 claims description 7
- 230000003746 surface roughness Effects 0.000 claims description 6
- 238000007788 roughening Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000013000 roll bending Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-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
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
- Nozzles (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、金属薄板上へ溶射被覆層を形成する
方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for forming a thermal spray coating layer on a metal sheet.
従来から、金属板へ金属やセラミツクスを溶射
するに際しては、被溶射体である素地表面を清浄
化したのち、グリツトによるブラスト処理を行つ
て粗面化し、溶射物と素地との投錨効果によつて
溶射皮膜の密着性を高め、さらに高い密着性を必
要とする場合には素材を粗面化後予熱して下地処
理を行つている。
Conventionally, when spraying metal or ceramics onto a metal plate, the surface of the base material to be sprayed is cleaned, then blasted with grit to roughen the surface, and the anchoring effect between the sprayed material and the base material To increase the adhesion of the thermal spray coating, if even higher adhesion is required, the surface of the material is roughened and then preheated to perform surface treatment.
しかしながら、例えば、被溶射体が１mm厚以下
のアルミや薄鋼板材のような薄板の場合、高密着
性の溶射体を得るための通常の熱処理や粗面化処
理を行なつたのでは、多数の溶射粒子が偏平化し
た層構造である溶射皮膜は、それらの下地処理に
より生じる素材の不規則な歪が加わつて溶射熱に
よる歪の発生が増大し、板の反りのみではなく、
溶射皮膜を健全な状態で保つことも不可能である
という問題が生じる。 However, for example, when the object to be thermally sprayed is a thin plate such as aluminum or thin steel plate with a thickness of 1 mm or less, it is difficult to perform conventional heat treatment or surface roughening treatment to obtain a thermally sprayed object with high adhesion. Thermal sprayed coatings have a layered structure of flattened thermal spray particles, and the irregular distortion of the material caused by the surface treatment increases the distortion caused by the spraying heat, which causes not only warping of the plate, but also
A problem arises in that it is also impossible to maintain the thermal spray coating in a healthy state.
そのため、前処理としての粗面化は素材の歪を
抑制するために被処理薄板をブラスト処理したロ
ールに通す圧下転写により行ない、また溶射も素
材の熱歪を低減し得るような低温度で行う等の対
策が採られている。 Therefore, surface roughening as a pre-treatment is carried out by rolling the thin plate to be treated through a blasted roll in order to suppress distortion of the material, and thermal spraying is also carried out at a low temperature to reduce thermal distortion of the material. Measures such as these are being taken.
しかしながら、かかる方法によつて得られた素
材表面に形成された転写粗面はある程度方向性を
持つたものとなる上、低温度での溶射であること
からその製品は、溶射物と素材との密着性が極め
て低く、溶射表面も凹凸が多い等品質が低いもの
であつた。
However, the roughened transfer surface formed on the surface of the material obtained by this method has some degree of directionality, and since the thermal spraying is carried out at a low temperature, the product is difficult to form due to the relationship between the sprayed material and the material. Adhesion was extremely low, and the sprayed surface was of low quality with many irregularities.
本発明の目的は、かかる従来の金属薄板への溶
射皮膜形成における欠点を解消して、被溶射体自
体の変形を防止するとともに、溶射皮膜の表面状
態がよく、また素地との密着性も径300mmφのロ
ール曲げテストにおいて剥離しない溶射皮膜を得
る方法を提供することにある。 The purpose of the present invention is to eliminate such drawbacks in the conventional formation of a thermal spray coating on a thin metal plate, to prevent the deformation of the thermal sprayed object itself, to ensure that the surface condition of the thermal spray coating is good, and that the adhesion to the substrate is also improved. The object of the present invention is to provide a method for obtaining a thermal spray coating that does not peel off in a roll bending test of 300 mmφ.
本発明の金属薄板への溶射方法は、被溶射体で
ある厚み１mm以下の金属薄板をブラスト処理によ
り表面粗度Rz10μｍ以下に粗面化したのち、同粗
面化した薄板の裏面に冷却裏当て材をあてがつて
裏面から冷却しつつ、粗面化した薄板の表面に溶
射処理を施すことを特徴とする。
The method of thermal spraying on a thin metal plate of the present invention involves roughening a thin metal plate with a thickness of 1 mm or less by blasting to a surface roughness Rz of 10 μm or less, and then applying a cooling backing to the back side of the roughened thin plate. It is characterized by applying thermal spraying to the roughened surface of the thin plate while cooling it from the back side.
〔作用〕
薄板の厚みが１mm以下の場合、素材の表面粗度
は、ブラストによつて得られた表面のみを毳立た
せたような状態になるRz10μｍ以下にすることに
よつて素材形状の平坦性を維持でき、かつ充分な
密着性を得ることができる。[Function] When the thickness of the thin plate is 1 mm or less, the surface roughness of the material can be reduced to Rz 10 μm or less, which makes only the surface obtained by blasting stand out, thereby improving the flatness of the material shape. can be maintained and sufficient adhesion can be obtained.
この粗度がRz10μｍを超えるブラスト処理を行
うと薄板そのものの変形が著しく、それによつて
形成する溶射皮膜も均一性を欠くものとなり、ま
た、ブラスト処理以外の方法により薄板の変形を
防ぎ溶射皮膜の均一性をねらつたものでは無方向
性の粗面は得難く溶射皮膜と素材との密着性に欠
ける等きわめて不都合な結果となる。 If blasting is performed with a roughness exceeding Rz10μm, the thin plate itself will be significantly deformed, resulting in the formed thermal spray coating lacking uniformity.Furthermore, methods other than blasting may be used to prevent the thin plate from deforming and improve the thermal spray coating. If uniformity is aimed at, it is difficult to obtain a non-directional rough surface, resulting in extremely disadvantageous results such as poor adhesion between the sprayed coating and the material.
このRz10μｍ以下の表面粗度を得るためには普
通鋼板の場合、３Kg／cm2のブラスト圧のもとで、
＃220の研掃材を用いて100〜150mm間隔で処理し
たときにその平坦性を損なうことなく上記の粗度
が得られる。 In order to obtain a surface roughness of Rz10μm or less, in the case of ordinary steel sheets, under a blasting pressure of 3Kg/ cm2 ,
When processing with #220 abrasive material at intervals of 100 to 150 mm, the above roughness can be obtained without impairing the flatness.
また、冷却用の裏当て材としては放射性の良い
材質及び構造のものが良い。通常は添付図に示す
ように、溶射ガン１からの溶射材２が当たる金属
薄板３の裏面に、裏当て材４として銅板を当てが
い、これに冷却風５を当てて更に放熱を促進させ
る。 In addition, the cooling backing material is preferably made of a material and has a structure with good radioactivity. Usually, as shown in the attached drawing, a copper plate is applied as a backing material 4 to the back surface of a thin metal plate 3, which is in contact with the thermal spray material 2 from the thermal spray gun 1, and cooling air 5 is applied to this to further promote heat dissipation.
さらに、溶射に当たつては一回当りの材料供給
量を減少せしめて、複数回の繰り返し溶射を行な
つて溶射皮膜６を形成するのがよい。 Further, in thermal spraying, it is preferable to reduce the amount of material supplied per time and repeat thermal spraying a plurality of times to form the thermal sprayed coating 6.
本発明の溶射方法を適用するに当たつては、素
材と溶射材は何等制限を受けるものではなく、溶
射材としては、金属アルミニウム、アルミナ、燐
酸カルシウム等任意の溶射材が適用できる。 When applying the thermal spraying method of the present invention, the material and the spraying material are not limited in any way, and any thermal spraying material such as metal aluminum, alumina, calcium phosphate, etc. can be used as the spraying material.
200×450mmの表面積を有する0.3mm厚の鋼板に
３Kg／cm2のブラスト圧のもとで、＃220の研掃材
を用いてノズルからの距離120mmでブラスト処理
を行い、表面粗度がRz8μｍの粗面化表面を得た。
この粗面化した鋼板を12mm厚の銅板上にテープ貼
りによつて密着固定して、背面から冷却空気を当
てながら、500amp、75v、キヤリアガス流量42
／minの条件下で、粒径が５〜25μｍのAl2O3を
プラズマ溶射した。プラズマガンのトラバース速
度は75ｍ／分で５回パス処理を行つた。
A 0.3 mm thick steel plate with a surface area of 200 x 450 mm was blasted at a distance of 120 mm from the nozzle using #220 abrasive material under a blasting pressure of 3 Kg/ cm2 , and the surface roughness was Rz8 μm. A roughened surface was obtained.
This roughened steel plate was tightly fixed with tape on a 12 mm thick copper plate, and while cooling air was applied from the back, 500 amp, 75 V, carrier gas flow rate of 42
Al 2 O 3 having a particle size of 5 to 25 μm was plasma sprayed under the condition of /min. The traverse speed of the plasma gun was 75 m/min, and five passes were performed.
溶射後の鋼板の反り変形はなく、厚み20μｍ
で、表面の粗度がRz15〜20μｍのアルミナ溶射皮
膜を得ることができ、また、溶射皮膜は径300mm
φのロール曲げテストの剥離試験においても剥離
しない接着強度を有するものであつた。 There is no warping of the steel plate after thermal spraying, and the thickness is 20μm.
It is possible to obtain an alumina sprayed coating with a surface roughness of Rz 15 to 20μm, and the diameter of the sprayed coating is 300mm.
The adhesive strength was such that it did not peel off even in the peel test of the φ roll bending test.
本発明の溶射法によつて薄板の金属板において
も素材そのものの曲がり、歪を極力押さえること
が可能となり、径300mmφのロール曲げテストに
おいて剥離しない密着性を有するとともにその表
面状態においても凹凸の少ない優れた溶射皮膜を
得ることができる。
The thermal spraying method of the present invention makes it possible to minimize the bending and distortion of the material itself, even for thin metal plates, and it has adhesion that does not peel off in a roll bending test with a diameter of 300 mmφ, and its surface has little unevenness. Excellent thermal spray coating can be obtained.
図面は本発明の溶射法の実施態様の一つの説明
図である。
１：溶射ガン、２：溶射材、３：金属薄板、
４：裏当て材、５：冷却風、６：溶射皮膜。
The drawing is an explanatory diagram of one embodiment of the thermal spraying method of the present invention. 1: Thermal spray gun, 2: Thermal spray material, 3: Metal thin plate,
4: Backing material, 5: Cooling air, 6: Thermal spray coating.
Claims (1)
ラスト処理により表面粗度Rz10μｍ以下に粗面化
したのち、同粗面化した薄板の裏面に冷却裏当て
材をあてがつて裏面から冷却しつつ、粗面化した
薄板の表面に溶射処理を施すことを特徴とする金
属薄板への溶射方法。1 After roughening a metal thin plate with a thickness of 1 mm or less, which is the object to be thermally sprayed, to a surface roughness of Rz 10 μm or less by blasting, a cooling backing material is applied to the back side of the roughened thin plate while cooling from the back side. , a method for thermal spraying on a thin metal plate, characterized in that a thermal spraying treatment is applied to a roughened surface of the thin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60073084A JPS61230761A (en) | 1985-04-05 | 1985-04-05 | Method for flame spraying of metal thin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60073084A JPS61230761A (en) | 1985-04-05 | 1985-04-05 | Method for flame spraying of metal thin plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61230761A JPS61230761A (en) | 1986-10-15 |
| JPH0351786B2 true JPH0351786B2 (en) | 1991-08-07 |
Family
ID=13508111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60073084A Granted JPS61230761A (en) | 1985-04-05 | 1985-04-05 | Method for flame spraying of metal thin plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61230761A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63259062A (en) * | 1987-04-15 | 1988-10-26 | Eguro Tekkosho:Kk | Ceramic coating method by thermal spraying |
| JP2715471B2 (en) * | 1988-09-14 | 1998-02-18 | 日立化成工業株式会社 | Method of spraying ceramic on metal foil |
| JP2569756B2 (en) * | 1988-09-14 | 1997-01-08 | 日立化成工業株式会社 | Manufacturing method of ceramic sprayed metal foil |
| DE4210900A1 (en) * | 1992-04-02 | 1993-10-14 | Hoechst Ag | Process for producing an adhesive bond between copper layers and ceramic |
| JP2011017078A (en) * | 2009-06-10 | 2011-01-27 | Denso Corp | Method for forming thermal splay coating |
-
1985
- 1985-04-05 JP JP60073084A patent/JPS61230761A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61230761A (en) | 1986-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |