JPH08209320A - Method for manufacturing thermal spray coating - Google Patents
Method for manufacturing thermal spray coatingInfo
- Publication number
- JPH08209320A JPH08209320A JP3605095A JP3605095A JPH08209320A JP H08209320 A JPH08209320 A JP H08209320A JP 3605095 A JP3605095 A JP 3605095A JP 3605095 A JP3605095 A JP 3605095A JP H08209320 A JPH08209320 A JP H08209320A
- Authority
- JP
- Japan
- Prior art keywords
- spray coating
- thermal spray
- treatment
- base material
- adhesion
- 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
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
(57)【要約】
【目的】 溶射被覆材の性能を高める。製造コストを下
げる。
【構成】 母材の表面をブラスト処理した後、ブラスト
面を、処理後の表面精度Ｒａ′と処理前の表面粗度Ｒａ
との比（Ｒａ′／Ｒａ）が0.2 〜１となるように平坦化
する。その表面に溶射被覆を形成した後、溶射皮膜の表
面を目標とする表面粗度に調整する。
(57) [Summary] [Purpose] To improve the performance of thermal spray coatings. Lower manufacturing costs. [Structure] After blasting the surface of a base material, the blasted surface is treated with a surface accuracy Ra 'and a surface roughness Ra before processing.
The surface is flattened so that the ratio (Ra '/ Ra) of the above is 0.2 to 1. After forming the thermal spray coating on the surface, the surface of the thermal spray coating is adjusted to a target surface roughness.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼板や鋼ロール等の母
材の表面にメタル、セラミックス、サーメット等の異種
材を溶射被覆した溶射被覆材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a thermal spray coating material in which the surface of a base material such as a steel plate or a steel roll is spray coated with a different material such as metal, ceramics or cermet.
【０００２】[0002]
【従来の技術】母材が待ち合わせていない耐食性、耐摩
耗性、美観性等の機能を寄与したり、母材の持性を強化
するために母材の表面に異種材を被覆する方法として溶
射がある。2. Description of the Related Art Thermal spraying is a method of coating different materials on the surface of the base material in order to contribute to functions such as corrosion resistance, wear resistance, and aesthetics that the base material does not wait for or to enhance the holding property of the base material. There is.
【０００３】溶射では、溶射材を加熱により溶融状態に
して加圧ガスにより高速で飛ばし、母材に衝突させるこ
とにより、母材表面に溶射皮膜が物理的に付着する。そ
のため、母材の表面粗度が溶射皮膜の密着性に大きく影
響する。この観点から溶射前に母材表面をブラスト処理
してその表面粗度を高めることが一般に行われている。
そして、溶射皮膜の密着性を更に高めるために、ブラス
ト面を軽圧下して、軽圧下後の凹凸最大高さＲ′max と
軽圧下前の凹凸最大高さＲmax との比（Ｒ′max ／Ｒma
x ）が0.０４〜0.２２となるように平滑化する溶射鋼板
の製造方法が特公平４−２１７４７号公報に開示されて
いる。In thermal spraying, the thermal spray material is made into a molten state by heating, is blown at high speed by a pressurized gas, and is made to collide with the base material, whereby the spray coating physically adheres to the surface of the base material. Therefore, the surface roughness of the base material greatly affects the adhesiveness of the thermal spray coating. From this viewpoint, it is common practice to blast the surface of the base material before spraying to increase its surface roughness.
Then, in order to further improve the adhesion of the thermal spray coating, the blast surface is lightly pressed down, and the ratio of the maximum height R'max of the unevenness after the light reduction and the maximum height Rmax of the unevenness before the light reduction (R'max / Rma
Japanese Patent Publication No. 21747/1992 discloses a method for producing a thermal sprayed steel sheet which is smoothed so that x) becomes 0.04 to 0.22.
【０００４】一方、溶射被覆の表面は溶射のままでは粗
いので、用途に応じた粗度に表面を調整する必要があ
る。この粗度調整にはこれまで機械研削仕上げが用いら
れている。しかし、機械研削仕上げには、手数および経
費がかかる。そこで、溶射と同時に溶射面をＲａ１〜１
５μｍに粗度調整することにより、スピッティング欠陥
を防止し、合わせ溶射後の機械研削仕上げ加工を不要に
する溶射被覆形成方法が特開平５−２１４５０５号公報
に開示されている。On the other hand, since the surface of the thermal spray coating is rough as it is, it is necessary to adjust the surface to a roughness according to the application. Mechanical grinding finish has been used for this roughness adjustment. However, mechanical grinding finishing is laborious and expensive. Therefore, at the same time as the thermal spraying, the sprayed surface is Ra1 to Ra1.
Japanese Patent Application Laid-Open No. 5-214505 discloses a method for forming a thermal spray coating that prevents spitting defects by adjusting the roughness to 5 μm and eliminates the need for mechanical grinding finishing after combined thermal spraying.
【０００５】[0005]
【発明が解決しようとする課題】特公平４−２１７４７
号公報に示されているプラスト面の軽圧下による平坦化
処理は、ブラスト面の凹凸をより不規則（不均一）に
し、溶射皮膜の密着性を高めるのに有効である。また、
ブラストままの表面は凸部のピークが高く、この部分で
溶射皮膜が異常に薄くなることから、早期に母材の一部
が露出し、連続焼鈍炉用のハースロール等ではこの部分
に異物が付着するための寿命が著しく制限されるが、ブ
ラスト面を軽圧下すれば一応このような異物付着による
寿命制限も回避される。しかし、溶射後の機械研削仕上
げ加工が必要であり、大幅なコスト増を余儀なくされ
る。[Problems to be Solved by the Invention] Japanese Patent Publication No. 4-21747
The flattening treatment by light reduction of the plast surface, which is disclosed in the publication, is effective in making irregularities on the blast surface more irregular (uneven) and enhancing the adhesiveness of the thermal spray coating. Also,
The as-blasted surface has a high peak of the convex part, and the spray coating is abnormally thin at this part, so part of the base metal is exposed early and foreign matter is found at this part in the hearth roll etc. for the continuous annealing furnace. The life for adhesion is remarkably limited, but if the blast surface is lightly pressed, such life limitation due to adhesion of foreign matter is also avoided. However, mechanical grinding finish processing after thermal spraying is required, and a large cost increase is inevitable.
【０００６】一方、特開平５−２１４５０号公報に示さ
れている溶射中の表面粗度調整は、溶射後の機械研削仕
上げ加工を不要にするが、その一方でスピッティング欠
陥の防止を目的としているため、粗度調整手段としてス
ピッティング原因粒子を押し込む軽圧下は採用できず、
研摩が必要となる。しかし、研摩は密着力の増大につな
がらないばかりか、密着力の弱い溶射中に溶射面を研摩
することは、密着力を低下させる原因になる。特に溶射
材がＡｌ2 Ｏ3 、ＷＣ、Ｍｏのように高硬度材である場
合には、研摩時に大きな押し付け荷重が必要となるた
め、密着力を低下させる危険性が大きい。その上、高硬
度材の研摩においては熟練が必要であり、研摩時間も多
くかかるため、溶射後の機械研摩仕上げ加工を不要にし
たことによる経済的効果が減殺される。On the other hand, the surface roughness adjustment during thermal spraying disclosed in JP-A-5-21450 eliminates the need for mechanical grinding finishing after thermal spraying, but on the other hand, for the purpose of preventing spitting defects. Therefore, it is not possible to adopt a light pressure that pushes the particles that cause spitting as a roughness adjusting means,
Polishing is required. However, polishing does not lead to an increase in adhesion, and polishing a sprayed surface during thermal spraying with weak adhesion causes a decrease in adhesion. Particularly when the thermal spray material is a high hardness material such as Al 2 O 3 , WC, and Mo, a large pressing load is required during polishing, and thus there is a great risk of reducing the adhesion. In addition, polishing a high hardness material requires skill and requires a lot of polishing time, so the economic effect of eliminating the need for mechanical polishing finishing after spraying is diminished.
【０００７】本発明の目的は、溶射皮膜の密着力を高
め、しかも経済性が良好な溶射被覆材の製造方法を提供
することにある。An object of the present invention is to provide a method for producing a thermal spray coating material which enhances the adhesion of the thermal spray coating and is economical.
【０００８】[0008]
【課題を解決するための手段】溶射皮膜の密着力を高め
且つ経済性を向上させる方法として、特公平４−２１７
４７号公報に示されているブラスト面の平坦化処理と、
特開平５−２１４５０５号公報に示されている研摩によ
る溶射中の表面粗度調整との組み合わせが考えられる。
しかし、溶射中の表面処理は、前述した通り、密着力を
低下させる危険がある。そのため、ブラスト面の平坦化
処理による密着力向上以上の効果を得ることはできな
い。その上、表面研摩処理はプロセス的にも問題があ
る。[Means for Solving the Problems] As a method for increasing the adhesion of a thermal spray coating and improving the economical efficiency, Japanese Patent Publication No. 4-217.
Flattening treatment of the blast surface shown in Japanese Patent No. 47,
A combination with the surface roughness adjustment during thermal spraying by polishing, which is disclosed in JP-A-5-214505, is considered.
However, the surface treatment during thermal spraying has a risk of reducing the adhesive force as described above. Therefore, it is impossible to obtain the effect more than the improvement of the adhesion force by the flattening treatment of the blasted surface. In addition, the surface polishing treatment has a process problem.
【０００９】そこで本発明者らは溶射中の研摩に代わる
新たな表面処理法の開発を企画し、種々研究を行ったと
ころ、溶射後の軽圧下が溶射皮膜表面の粗度調整に有効
なことを知見した。溶射後の軽圧下は、溶射中の研摩と
異なり溶射皮膜の密着力を低下させないばかりか、むし
ろその密着力を向上させることができる。また、溶射材
が高硬度材の場合もその表面処理を簡単に行うことがで
きる。従って、ブラスト面の平坦化処理と溶射後の軽圧
下による表面粗度調整との組み合わせにより、溶射皮膜
の密着力および経済性の両方が従来以上に向上する。Therefore, the inventors of the present invention planned the development of a new surface treatment method in place of polishing during thermal spraying and conducted various studies. It was found that a light reduction after thermal spraying is effective for adjusting the roughness of the thermal spray coating surface. I found out. The light reduction after thermal spraying, unlike polishing during thermal spraying, does not lower the adhesion of the thermal spray coating, but rather can improve the adhesion. Further, even when the thermal spray material is a high hardness material, the surface treatment can be easily performed. Therefore, by the combination of the flattening treatment of the blasted surface and the surface roughness adjustment by light reduction after thermal spraying, both the adhesive strength and the economical efficiency of the thermal spray coating are improved more than ever before.
【００１０】本発明は上記知見に基づくもので、母材の
表面をブラスト処理した後にその表面に溶射被覆を形成
する溶射被覆材の製造方法において、１次表面処理とし
てブラスト面を、処理後の表面粗度Ｒａ′と処理前の表
面粗度Ｒａとの比（Ｒａ′／Ｒａ）が0.２〜１となるよ
うに平坦化し、２次表面処理として溶射皮膜の表面を軽
圧下により目標とする表面粗度に調整することを特徴と
する溶射被覆材の製造方法を要旨とする。The present invention is based on the above findings, and in a method for producing a thermal spray coating material in which a surface of a base material is blasted and then a thermal spray coating is formed on the surface, the blast surface after the treatment is treated as a primary surface treatment. The surface roughness Ra ′ is flattened so that the ratio (Ra ′ / Ra) between the surface roughness Ra before treatment and the surface roughness Ra becomes 0.2 to 1, and the surface of the thermal spray coating is targeted by light reduction as the secondary surface treatment. The gist is a method for producing a thermal spray coating material, which is characterized by adjusting the surface roughness.
【００１１】母材がロールである場合には、１次表面処
理および／または２次表面処理をロール同士の回転接触
により行うことが望ましい。When the base material is a roll, it is desirable to perform the primary surface treatment and / or the secondary surface treatment by rotating the rolls into contact with each other.
【００１２】[0012]
【作用】本発明の方法を１次表面処理、２次表面処理の
順に詳述する。The method of the present invention will be described in detail in the order of primary surface treatment and secondary surface treatment.
【００１３】〔１次表面処理〕ブラスト処理を行った母
材の表面を平坦化する加工処理である。この処理により
ブラスト面の凹凸がより不規則になり、皮膜の密着力が
向上する。また凸部のピークが低下することによりこの
部分での皮膜の薄肉化が抑えられ、この点からも溶射被
覆材の寿命が延びる。[Primary surface treatment] This is a processing treatment for flattening the surface of the base material subjected to the blast treatment. This treatment makes irregularities on the blast surface more irregular and improves the adhesion of the coating. Further, since the peak of the convex portion is lowered, the thinning of the coating film at this portion is suppressed, and the life of the thermal spray coating material is extended also from this point.
【００１４】処理法としてはロール等による軽圧下、研
摩、研削のいずれを採用してもよいが、能率の点からは
ロールによる軽圧下が望ましく、母材がロールの場合は
ブラスト後のロール同士を回転接触させる方法が特に望
ましい。As the treatment method, any of light pressure reduction by rolls, polishing and grinding may be adopted. However, from the viewpoint of efficiency, light pressure reduction by rolls is preferable. When the base material is rolls, the rolls after blasting are treated with each other. A method of rotating contact with is particularly desirable.
【００１５】処理条件は、処理後の表面粗度Ｒａ′と処
理前の表面粗度Ｒａとの比（Ｒａ′／Ｒａ）で表わして
0.２〜１とする。この比が0.２未満では平坦化が不足
し、十分な皮膜密着力向上効果が得られず、１を超える
とブラスト面の凹凸が小さくなり過ぎ、アンカー効果が
不足するという点から、やはり十分な皮膜密着力向上効
果が得られない。The treatment conditions are expressed by the ratio (Ra '/ Ra) of the surface roughness Ra' after the treatment and the surface roughness Ra before the treatment.
It should be 0.2-1. If this ratio is less than 0.2, flattening is insufficient, and sufficient effect of improving the film adhesion cannot be obtained. If it exceeds 1, unevenness of the blast surface becomes too small and the anchoring effect is insufficient. The effect of improving film adhesion cannot be obtained.
【００１６】なお、特公平４−２１７４７号公報に示さ
れているブラスト面の平坦化処理では、軽圧下の条件
が、軽圧下後の凹凸最大高さＲ′max と軽圧下前の凹凸
最大高さＲmax との比（Ｒ′max ／Ｒmax ）で0.０４〜
0.２２とされている。その理由は、粒径の大きい（0.７
ｍｍ以上）ブラスト材を用いて表面の粗大化をすると最
大粗さのバラツキが大きくなるからである。一方、母材
の表面粗さを大きくすることにより皮膜の密着力が向上
することが良く知られている。本発明のように、ロール
等の特に密着力を要求される分野では、Ｒａ値による管
理が望ましい。In the flattening process of the blast surface disclosed in Japanese Patent Publication No. 4-21747, the conditions for light reduction are that the maximum height R'max of unevenness after light reduction and the maximum height of unevenness before light reduction. Ratio Rmax (R'max / Rmax) from 0.04
It is set to 0.22. The reason is that the particle size is large (0.7
This is because when the surface is roughened by using a blast material, the variation in the maximum roughness becomes large. On the other hand, it is well known that the adhesion of the coating is improved by increasing the surface roughness of the base material. As in the present invention, it is desirable to control by the Ra value in a field such as a roll where a particularly high adhesion is required.
【００１７】〔２次表面処理〕母材表面に溶射皮膜を形
成した後に、その皮膜表面をロール等により軽圧下して
目標とする表面粗度に調整する加工処理である。この処
理により、溶射後の機械研摩仕上げ加工が不要になる。
また、研摩の場合よりも手数が削減される。そして何よ
りも、１次表面処理で高めた皮膜密着力を更に向上させ
ることができる。その理由としては、軽圧下を溶射後に
行うこと、軽圧下により溶射粒子間の結合が向上し、且
つ溶射皮膜の平滑化がより向上し表面粗度を下げること
が可能になることの２点を挙げることができる。[Secondary surface treatment] This is a processing treatment in which after forming a thermal spray coating on the surface of the base material, the coating surface is lightly pressed down by a roll or the like to adjust it to a target surface roughness. This treatment eliminates the need for mechanical polishing finishing after thermal spraying.
Moreover, the number of steps is reduced as compared with the case of polishing. Above all, it is possible to further improve the film adhesion strength increased by the primary surface treatment. The reason is that light pressure reduction is performed after the thermal spraying, and that the light pressure reduction improves the bonding between the thermal spray particles, and further improves the smoothness of the thermal spray coating, thereby reducing the surface roughness. Can be mentioned.
【００１８】軽圧下の方法としては能率の点からロール
による方法が望ましく、母材がロールの場合は溶射後の
ロール同士を回転接触させる方法が特に望ましい。From the viewpoint of efficiency, a method using rolls is preferable as the method of light pressure reduction, and when the base material is rolls, a method of rotating and contacting the rolls after thermal spraying is particularly preferable.
【００１９】[0019]
【実施例】本発明の実施例を示し、従来例および比較例
と対比することにより、本発明の効果を明らかにする。EXAMPLES The effects of the present invention will be clarified by showing examples of the present invention and comparing them with conventional examples and comparative examples.
【００２０】ＳＭ５０からなる厚さ６ｍｍの鋼板を母材
とし、その母材の表面を表１に示す条件でブラスト処理
した。ブラスト後、１次表面処理として母材をロール間
に通して表面を軽圧下した。軽圧下後、母材の表面に表
２に示す条件でＣｏ−Ｃｒ−Ａｌ−Ｙ合金を１５０μｍ
の厚さにプラズマ溶射した。溶射後、２次表面処理とし
てその溶射皮膜鋼板をロール間に通し、溶射皮膜の表面
を目標表面粗度であるＲａ0.７に軽圧下した。A steel plate having a thickness of 6 mm and made of SM50 was used as a base material, and the surface of the base material was blasted under the conditions shown in Table 1. After the blasting, as a primary surface treatment, the base material was passed between rolls to lightly reduce the surface. After the light pressure reduction, Co-Cr-Al-Y alloy was formed on the surface of the base material under the conditions shown in Table 2 to 150 μm.
Plasma sprayed to a thickness of. After the thermal spraying, the thermally sprayed coating steel sheet was passed between the rolls as a secondary surface treatment, and the surface of the thermally sprayed coating was lightly reduced to Ra 0.7 which is the target surface roughness.
【００２１】こうして製造した溶射皮膜鋼板の耐摩耗性
寿命、耐食性寿命および溶射皮膜の密着力を調査した。
なお、耐摩耗性寿命の調査はＨ８６８２相当で行い、耐
食性寿命の調査はＪＩＳ Ｚ２３７１に準じる方法によ
り行った。また密着力の調査はＪＩＳ Ｂ７７２１の引
張試験機を用いてＨ８６６６相当で行った。ブラスト後
の１次表面処理としてロールによる軽圧下を行い溶射後
の２次表面処理として軽圧下を行わず、機械切削加工に
より目標表面粗度を得た場合を従来例として、その従来
例の調査値を１とした場合の各調査値を図１に示す。The wear resistance life, the corrosion resistance life and the adhesion of the thermal spray coating of the thus spray-coated steel sheet were investigated.
The wear resistance life was examined with H8682 and the corrosion resistance life was examined by a method according to JIS Z2371. Further, the investigation of the adhesion was carried out by using a tensile tester of JIS B7721 corresponding to H8666. Investigation of a conventional example, where a target surface roughness was obtained by mechanical cutting without light reduction as a secondary surface treatment after thermal spraying as a primary surface treatment after blasting and as a secondary surface treatment after thermal spraying. Fig. 1 shows each survey value when the value is 1.
【００２２】本発明の実施例では、耐摩耗性寿命、耐食
性寿命および密着力のいずれも従来例より向上した。こ
れは溶射後の軽圧下により極端な凸状のピークが調整さ
れた結果、膜厚が均一化したこと、皮膜の粒子間結合力
が強化されたことが理由と考えられる。In the examples of the present invention, the wear resistance life, the corrosion resistance life, and the adhesion strength were all improved as compared with the conventional example. It is considered that this is because, as a result of adjusting the extreme convex peaks by light pressure reduction after the thermal spraying, the film thickness was made uniform and the inter-particle bonding force of the coating was strengthened.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【表２】 [Table 2]
【００２５】２５０Ｃｒ−２０Ｎｉからなる外径８００
ｍｍの鋼ロールを母材として、その母材表面を表１に示
す条件でブラスト処理した。ブラスト後、ロール同士を
回転接触させてそれぞれの表面を軽圧下した。軽圧下
後、母材の表面に表３に示す条件でＣｏ−Ｃｒ−Ａｌ−
Ｙを１２０μｍの厚さにプラズマ溶射した。溶射後、ロ
ール同士を回転接触させてそれぞれの表面を目標表面粗
度であるＲａ0.７に軽圧下した。比較例として溶射中に
溶射面を研摩した。Outer diameter 800 made of 250Cr-20Ni
Using a steel roll of mm as the base material, the surface of the base material was blasted under the conditions shown in Table 1. After the blasting, the rolls were brought into rolling contact with each other and the respective surfaces were lightly pressed. After being lightly pressed, Co-Cr-Al-on the surface of the base material under the conditions shown in Table 3.
Y was plasma sprayed to a thickness of 120 μm. After the thermal spraying, the rolls were brought into rotational contact with each other, and the respective surfaces were lightly reduced to a target surface roughness Ra of 0.7. As a comparative example, the sprayed surface was polished during spraying.
【００２６】こうして製造した溶射被覆ロールの耐摩耗
性寿命、耐食性寿命および溶射皮膜の密着力を調査し
た。耐摩耗性寿命の調査はＨ８６８２−３．３より行
い、耐食性寿命の調査はＪＩＳ Ｚ２３７１に準じる方
法により行った。また密着力の調査はＨ８６６６−４．
２．２により行った。ブラスト後の１次表面処理として
ロール軽圧下を行い、溶射後の２次表面処理として軽圧
下を行わず、機械切削加工により目標表面粗度を得た場
合を従来例として、その従来例の調査値を１とした場合
の各調査値を図２に示す。The wear resistance life, corrosion resistance life and adhesion of the thermal spray coating of the thermal spray coating roll thus manufactured were investigated. The wear resistance life was investigated from H8682-3.3, and the corrosion resistance life was investigated by a method according to JIS Z2371. Also, for the investigation of adhesion, see H8666-4.
Performed according to 2.2. Examination of the conventional example, where the target surface roughness was obtained by mechanical cutting without light reduction as the primary surface treatment after blasting and as the secondary surface treatment after thermal spraying. Fig. 2 shows each survey value when the value is 1.
【００２７】ブラスト後の１次表面処理としてロール軽
圧下を行い、２次表面処理として溶射中に溶射面を研摩
した比較例では、耐摩耗性寿命、耐食性寿命および密着
力のいずれも従来例より低下した。これは溶射材が高硬
度材であるため、溶射中の研摩が皮膜特性に悪影響を与
えたためである。しかるに、本発明の実施例では、耐摩
耗性寿命、耐食性寿命および密着力のいずれも従来例よ
り向上した。これは前述した通り溶射後の軽圧下が皮膜
特性に好影響を与えたためである。In the comparative example in which the roll surface was lightly pressed down as the primary surface treatment after blasting and the sprayed surface was polished during the secondary surface treatment, the wear resistance life, the corrosion resistance life and the adhesion were all better than those of the conventional example. Fell. This is because the thermal spraying material is a high hardness material, so polishing during thermal spraying adversely affected the coating properties. However, in the examples of the present invention, all of the wear resistance life, the corrosion resistance life, and the adhesion strength were improved as compared with the conventional example. This is because the light reduction after thermal spraying had a favorable effect on the coating properties as described above.
【００２８】[0028]
【表３】 [Table 3]
【００２９】[0029]
【発明の効果】以上に説明した通り、本発明の溶射被覆
材の製造方法は、ブラスト後に１次表面処理として平坦
化を行うことにより、溶射皮膜の密着力や特性の向上を
図る。溶射後に２次表面処理として軽圧下による表面粗
度調整を行うことにより、粗度調整作業を簡易化し、製
造コストの低減を図ると共に、溶射皮膜の密着力や特性
を更に向上させることができる。従って、高性能な溶射
被覆材を安価に製造することができる。As described above, in the method for producing a thermal spray coating material of the present invention, the adhesion force and the characteristics of the thermal spray coating are improved by performing flattening as the primary surface treatment after blasting. By performing surface roughness adjustment by light pressure reduction as a secondary surface treatment after thermal spraying, the roughness adjusting work can be simplified, the manufacturing cost can be reduced, and the adhesion and characteristics of the thermal spray coating can be further improved. Therefore, a high-performance spray coating material can be manufactured at low cost.
【００３０】請求項２に記載の方法は、表面処理を特に
簡単かつ効率的に行うことができる。The method according to claim 2 makes it possible to carry out the surface treatment particularly easily and efficiently.
【図１】本発明の方法の効果を示す図表である。FIG. 1 is a chart showing the effect of the method of the present invention.
【図２】本発明の方法の効果を示す図表である。FIG. 2 is a chart showing the effect of the method of the present invention.
Claims (2)
表面に溶射皮膜を形成する溶射被覆材の製造方法におい
て、１次表面処理としてブラスト面を、処理後の表面粗
度Ｒａ′と処理前の表面粗度Ｒａとの比（Ｒａ′／Ｒ
ａ）が0.２〜１となるように平坦化し、２次表面処理と
して溶射皮膜の表面を軽圧下により目標とする表面粗度
に調整することを特徴とする溶射被覆材の製造方法。1. A method of manufacturing a thermal spray coating material, comprising forming a thermal spray coating on the surface of a base material after the surface is blasted, wherein a blast surface is used as a primary surface treatment, and a surface roughness Ra ′ after the treatment and a surface roughness Ra ′ after the treatment are used. Of the surface roughness Ra of (Ra '/ R
a) is flattened so as to be 0.2 to 1, and the surface of the thermal spray coating is adjusted to a target surface roughness by light pressure reduction as a secondary surface treatment.
理および／または２次表面処理をロール同士の回転接触
により行うことを特徴とする請求項１に記載の溶射被覆
材の製造方法。2. The method for producing a thermal spray coating material according to claim 1, wherein when the base material is a roll, the primary surface treatment and / or the secondary surface treatment is performed by rotational contact between the rolls. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3605095A JPH08209320A (en) | 1995-01-31 | 1995-01-31 | Method for manufacturing thermal spray coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3605095A JPH08209320A (en) | 1995-01-31 | 1995-01-31 | Method for manufacturing thermal spray coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08209320A true JPH08209320A (en) | 1996-08-13 |
Family
ID=12458895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3605095A Pending JPH08209320A (en) | 1995-01-31 | 1995-01-31 | Method for manufacturing thermal spray coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08209320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866917B2 (en) * | 2006-02-02 | 2012-02-01 | ダイムラー・アクチェンゲゼルシャフト | Surface preparation method for sprayed layer |
| WO2014125621A1 (en) * | 2013-02-15 | 2014-08-21 | 千住金属工業株式会社 | Sliding member and production method for sliding member |
| US9956613B2 (en) | 2012-10-25 | 2018-05-01 | Senju Metal Industry Co., Ltd. | Sliding member and production method for same |
-
1995
- 1995-01-31 JP JP3605095A patent/JPH08209320A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866917B2 (en) * | 2006-02-02 | 2012-02-01 | ダイムラー・アクチェンゲゼルシャフト | Surface preparation method for sprayed layer |
| US9956613B2 (en) | 2012-10-25 | 2018-05-01 | Senju Metal Industry Co., Ltd. | Sliding member and production method for same |
| WO2014125621A1 (en) * | 2013-02-15 | 2014-08-21 | 千住金属工業株式会社 | Sliding member and production method for sliding member |
| CN104981558A (en) * | 2013-02-15 | 2015-10-14 | 千住金属工业株式会社 | Sliding member and production method for sliding member |
| US10036088B2 (en) | 2013-02-15 | 2018-07-31 | Senju Metal Industry Co., Ltd. | Sliding member and method of manufacturing the sliding member |
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