JP3130220B2 - Conductor roll for electroplating line and method of manufacturing the same - Google Patents
Conductor roll for electroplating line and method of manufacturing the sameInfo
- Publication number
- JP3130220B2 JP3130220B2 JP06330358A JP33035894A JP3130220B2 JP 3130220 B2 JP3130220 B2 JP 3130220B2 JP 06330358 A JP06330358 A JP 06330358A JP 33035894 A JP33035894 A JP 33035894A JP 3130220 B2 JP3130220 B2 JP 3130220B2
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- Prior art keywords
- roll
- particles
- sprayed
- alloy
- powder
- Prior art date
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Description
【０００１】[0001]
【産業上の利用分野】本発明は電気めっきライン用のコ
ンダクタロ−ルに係り、特に耐食性と耐摩耗性に優れた
前記コンダクタロ−ルとその製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductor roll for an electroplating line, and more particularly to a conductor roll excellent in corrosion resistance and abrasion resistance and a method for producing the same.
【０００２】[0002]
【従来の技術】従来から、亜鉛，錫等の電気めっき装置
に使用されるコンダクタロ−ルには、ロ−ルとしての寿
命を長くするために、めっき液による浸食が起こりにく
く、且つ耐摩耗性に優れる等の条件が要求されている。2. Description of the Related Art Conventionally, conductor rolls used for electroplating equipment of zinc, tin, etc., are less likely to be eroded by a plating solution in order to prolong the life as a roll, and have abrasion resistance. Are required.
【０００３】これらの要求に応えられる電気めっき処理
用のコンダクタロ−ルとして、本発明の発明者らは先に
特公昭61-21320号公報に記載されたコンダクタロ−ルを
提案した。このコンダクタロ−ルは、ロ−ルの胴部表面
に、金属炭化物粉末10〜90重量％、残部がＮｉ-Ｃｒ系
自溶合金粉末から成る混合粉末を溶射し再溶融処理して
被覆させることを要件として製造されるもので、前記溶
射により形成された皮膜はＮｉ-Ｃｒ系合金中に球状の
金属炭化物粒子がランダムに分散した組織である。As a conductor roll for electroplating that meets these requirements, the inventors of the present invention have previously proposed a conductor roll described in Japanese Patent Publication No. 61-21320. This conductor roll coats the surface of the roll body by spraying and re-melting a mixed powder composed of 10 to 90% by weight of a metal carbide powder and the balance being a Ni-Cr-based self-fluxing alloy powder. Manufactured as a requirement, the coating formed by thermal spraying has a structure in which spherical metal carbide particles are randomly dispersed in a Ni—Cr-based alloy.
【０００４】上記コンダクタロ−ルは、ロ−ル表面皮膜
が、Ｎｉ-Ｃｒ系合金を目地としている故に耐食性が良
好であり、加えて、皮膜中に分散した金属炭化物粒子に
よって高い耐摩耗性の電気めっきライン用コンダクタロ
−ルに形成された。このロ−ルは、Ｃｒめっきが施され
た従来のコンダクタロ−ルと比べて、５倍以上に耐久し
た。然し乍ら、長時間使用すると金属炭化物粒子の脱落
が起こり、脱落後のピットに異物が付着し、被めっき鋼
鈑に対して押し傷を発生させるという問題のあることが
判明した。[0004] The above conductor roll has good corrosion resistance because the roll surface film is jointed with a Ni-Cr alloy, and in addition, has high wear resistance due to metal carbide particles dispersed in the film. It was formed on a conductor roll for plating lines. This roll was more than five times as durable as the conventional conductor roll plated with Cr. However, it has been found that if used for a long time, the metal carbide particles fall off, foreign matter adheres to the pits after falling off, and there is a problem that a press scratch is generated on the steel plate to be plated.
【０００５】このような問題点を解決するため、本発明
者らはさらに、特開平5-9699号公報に記載された電気め
っきライン用のコンダクタロ−ルを提案した。このコン
ダクタロ−ルは、Ｎｉ-Ｃｒ系自溶合金粉末にＷＣを20
〜80重量％の範囲で混合した粉末を、ＷＣ粒子が楕円状
に変形し、且つ、該ＷＣ粒子の長径が皮膜層と平行に配
列されるように溶射し、更に、これを適切な加熱温度で
再溶融処理することによって、ＷＣ粒子の脱落による問
題が生じにくい皮膜層を形成させたものであり、これに
よって、先に述べた特公昭61-21320号公報に記載された
コンダクタロ−ルの２倍以上の寿命での連続使用が可能
となった。In order to solve such problems, the present inventors further proposed a conductor roll for an electroplating line described in Japanese Patent Application Laid-Open No. 5-9699. This conductor roll is made by adding WC to Ni-Cr based self-fluxing alloy powder.
The powder mixed in the range of ~ 80% by weight is sprayed so that the WC particles are deformed into an elliptical shape and the major axis of the WC particles is arranged in parallel with the coating layer. To form a coating layer which is less likely to cause problems due to the WC particles falling off. Thus, the conductor roll described in JP-B-61-21320 described above can be used. Continuous use with more than twice the life has become possible.
【０００６】然し乍ら、上記ロ−ルは溶射後に施す再溶
融処理の処理温度が1100℃前後と高温であるため、ロ−
ル母材が劣化したり、変形が生じる傾向があり、その対
策には多大なコストを要するという難点があった。However, since the above-mentioned roll has a high re-melting treatment temperature of about 1100 ° C. after thermal spraying, the roll has a high temperature.
The base metal tends to deteriorate or be deformed, and there has been a problem that a great deal of cost is required for the countermeasure.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記の問題
を解決するため、金属炭化物粒子を含むＮｉ-Ｃｒ系の
自溶合金等の溶射を施して形成する電気めっきライン用
コンダクタロ−ルにおいて、再溶融処理を施すことな
く、溶射したままの状態で従来の再溶融処理品に匹敵す
る性能を溶射皮膜に具備させることを、課題とするもの
である。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a conductor roll for an electroplating line formed by spraying a Ni-Cr-based self-fluxing alloy containing metal carbide particles. It is an object of the present invention to provide a sprayed coating with a performance comparable to that of a conventional remelted product in a state of being sprayed without performing remelting.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決すること
を目的として鋭意研究の結果なされた本発明電気めっき
用コンダクタロ−ルの構成は、ロ−ル胴部表面に直接
に、またはロ−ル胴部表面に金属炭化物を含まない合金
から成る下地溶射層を設けて該下地溶射層の上に、ＷＣ
とＮｉ-Ｃｒ系合金から成る混合粉末を溶射し、Ｎｉ-Ｃ
ｒ系合金の粒子が固結した目地中に、偏平状に分散した
ＷＣ粒子が散りばめられた組織を形成したことを特徴と
するものである。Means for Solving the Problems The conductor roll for electroplating of the present invention, which has been intensively studied for solving the above-mentioned problems, is provided directly on a roll body surface or on a roll. A base spraying layer made of an alloy containing no metal carbide is provided on the body surface, and WC is formed on the base spraying layer.
Sprayed a mixed powder consisting of Ni-Cr alloy and Ni-C
A structure in which flat-dispersed WC particles are scattered and formed in joints where the r-based alloy particles are consolidated.
【０００９】また、このロ−ルの製造方法の構成は、Ｗ
ＣとＮｉ-Ｃｒ系合金から成る混合粉末を溶射してロ−
ル胴部表面に皮膜を形成させる電気めっきライン用コン
ダクタロ−ルの製造方法において、前記粉末に粒度40〜
90μmの粉末を用い、該粉末を10〜20kg/hrで送給すると
共に、溶射機内の燃焼圧力を1.0〜1.5MPaとして溶射粒
子速度500〜1000m/secで溶射を行うことを特徴とするも
のであって、ロ−ル胴部表面に予め金属炭化物を含まな
い合金から成る下地溶射層を設けて、該下地溶射層の上
に上記方法を適用してもよい。[0009] The structure of this roll manufacturing method is the same as that of
Thermal spraying of mixed powder composed of C and Ni-Cr alloy
A method for producing a conductor roll for an electroplating line in which a film is formed on the surface of
Using 90μm powder, while feeding the powder at 10 ~ 20kg / hr, the spray pressure at the spray pressure of 1.0 ~ 1.5MPa and spraying at a spray particle speed of 500 ~ 1000m / sec, characterized in that Then, a base sprayed layer made of an alloy containing no metal carbide may be provided on the roll body surface in advance, and the above method may be applied on the base sprayed layer.
【００１０】即ち、本発明の発明者らは、ＷＣとＮｉ-
Ｃｒ合金の混合粉末を溶射するに際して、溶射粒子の溶
融度合を、凝固寸前で、溶融相が極少量しか含まれない
流動性が失われかけたレベルとし、該溶射粒子を高速で
対象面に衝突させれば、上記粒子同士が強固に結合して
一体化し、母材にも強く結合した緻密な皮膜が得られる
との着想に基づき、電気めっきライン用コンダクタロ−
ルに対しては、溶射材粒度並びに溶射条件を前記のよう
に限定すれば、所期の耐久性が得られることを知得し
て、本発明を達成したのである。[0010] That is, the inventors of the present invention, WC and Ni-
When spraying a mixed powder of a Cr alloy, the degree of melting of the sprayed particles is set to a level at which the fluidity containing only a small amount of the molten phase is about to be lost just before solidification, and the sprayed particles collide with the target surface at high speed Then, based on the idea that the above-mentioned particles are firmly bonded and integrated and a dense film strongly bonded to the base material is obtained, a conductor for an electroplating line can be obtained.
As a result, it was found that if the particle size of the sprayed material and the spraying conditions were limited as described above, the desired durability could be obtained, and the present invention was achieved.
【００１１】而して、本発明に用いる溶射材料は、従来
から知られるＷＣ20〜80重量％と残部Ｎｉ-Ｃｒ系合金
から成るものでよい。使用条件に応じてＷＣ含量を上記
範囲を目安に選定し、耐食性と耐摩耗性の兼合いを図る
ことによって、総合的に優れた耐久性が得られる。The thermal spraying material used in the present invention may be composed of a conventionally known WC of 20 to 80% by weight and a balance of a Ni--Cr alloy. By selecting the WC content according to the use conditions within the above range as a guide and achieving a balance between corrosion resistance and abrasion resistance, excellent overall durability can be obtained.
【００１２】溶射材粒度については、40μmよりも小粒
のものは早く溶融し、本発明に必要な前記溶融度合を得
にくく、一方、90μmよりも大粒のものは未溶融のまま
で投射される合金粒子が生じてくるほかＷＣ粒子につい
ても前述の使用時の脱粒問題があるため、40〜90μmの
範囲とする。Regarding the particle size of the sprayed material, alloy particles smaller than 40 μm are melted quickly, and it is difficult to obtain the above-mentioned degree of melting required for the present invention. On the other hand, alloy particles larger than 90 μm are projected unmelted. In addition to the generation of particles, WC particles also have a problem of shedding during use as described above.
【００１３】本発明においては、上記溶射材料を通常の
フレ−ム温度2500〜3500℃で溶射するものであるが、こ
の際の溶射条件についても、前記溶融度合を得るため
に、材料の送給量（送給速度）を通常の溶射より大と
し、且つ、溶射材料がフレ−ム中に滞留する時間が長く
なり過ぎないようにする必要がある。一方、送給量が過
大或いは滞留時間が極度に短いと全く溶融しない。従っ
て、供給量を従来好適とされた２〜10kg/hrより大な10
〜20kg/hrのレベルとし、滞留時間に関る粒子速度を従
来の200〜1000m/secに対して500〜1000m/secとした。こ
のように大量でしかも粒度の大な溶射材料を高速で噴射
させるためには、従来の0.2〜0.6MPaを大幅に上回る1.0
〜1.5MPaという大きな燃焼圧力が必要となるのである。In the present invention, the above-mentioned sprayed material is sprayed at a normal frame temperature of 2500 to 3500 ° C. In order to obtain the above-mentioned degree of melting, the feeding of the material is also performed under the spraying conditions. The quantity (feed rate) must be greater than normal spraying, and the time that the sprayed material remains in the frame is not too long. On the other hand, if the feed rate is excessive or the residence time is extremely short, no melting occurs. Therefore, the supply amount is larger than 10 kg / hr, which is conventionally regarded as suitable.
The particle velocity related to the residence time was set to 500 to 1000 m / sec, compared to the conventional 200 to 1000 m / sec. In order to inject such a large amount of sprayed material having a large particle size at a high speed, it is necessary to increase the amount of 1.0 by 1.0, which is significantly higher than the conventional 0.2 to 0.6 MPa.
A large combustion pressure of ~ 1.5MPa is required.
【００１４】上記500〜1000m/secの粒子速度は、上述の
ようにして溶融度合が調整された固体に近い性状の粒子
を高速でロ−ル表面に衝突させて、粒子同士或いは母材
との間の結合一体化を行わせるための速度条件としても
適切であることを確認している。The particle speed of 500 to 1000 m / sec is such that particles having properties similar to a solid whose melting degree is adjusted as described above are caused to collide with the roll surface at a high speed, and the particles are mixed with each other or with the base material. It has been confirmed that it is also appropriate as a speed condition for performing integration between the two.
【００１５】上記諸条件を特定するために、テストピ−
スを用いて行ったフレ−ム溶射の実験結果を表１に示
す。表１に見られるとおり、10〜20kg/hrで送給した溶
射材料に500〜1000m/secの粒子速度を与えることによっ
て、好ましい皮膜性状が得られると共に、大量に投射さ
れた粒子がよく定着し、溶射効率の面でも優れていた。
また、上記のように送給される溶射材料に上記粒子速度
を付与するのに適した燃焼圧力は1.0〜1.5MPaの範囲に
あることが判った。In order to specify the above conditions, a test peak
Table 1 shows the results of the frame spraying experiment performed using the above-described method. As can be seen from Table 1, by applying a particle speed of 500 to 1000 m / sec to the sprayed material fed at 10 to 20 kg / hr, favorable film properties can be obtained, and particles projected in large quantities are well fixed. Also, the spray efficiency was excellent.
Further, it has been found that the combustion pressure suitable for imparting the above-mentioned particle velocity to the sprayed material fed as described above is in the range of 1.0 to 1.5 MPa.
【００１６】[0016]
【表１】 [Table 1]
【００１７】上述のように構成した本発明においても、
溶射材料中のＷＣが多くなると、母材との結合力が低く
なる傾向にあるため、このような場合には、ＷＣなどの
金属炭化物を含まない合金粉末による下地溶射を施すこ
とにより、良好な皮膜が得られる。この下地溶射につい
ても、ＷＣを含む材料に関する前述の溶射条件によるこ
とが望ましい。In the present invention configured as described above,
When the amount of WC in the thermal spray material increases, the bonding strength with the base material tends to decrease. In such a case, by performing base thermal spraying with an alloy powder not containing a metal carbide such as WC, a favorable A film is obtained. It is desirable that the base thermal spraying be performed under the above-described thermal spraying conditions for the material containing WC.
【００１８】[0018]
【作用】特開平5-9699号公報に記載された従来の溶射法
では、図３，図４に示すように、溶射されてロ−ルの胴
部１に形成された皮膜層４は、溶融した溶射材料を投射
することにより偏平粒２，３（金属炭化粒子２とＮｉ-
Ｃｒ系合金３）が積層された組織となっている。即ち、
皮膜形成時にも溶融相がかなり残存し、充分な流動性を
有していたために偏平化したものであり、従って、積層
時の反力も小さいことから、偏平粒２，３同士は完全に
一体化しているわけではなく、微視的には粒間に間隙が
存在している。また、皮膜には上記溶融相の凝固収縮に
よる引張応力が残存して、付着力・粒子間結合力とも弱
く、溶射のままでは使用に耐えない。According to the conventional thermal spraying method described in Japanese Patent Laid-Open No. 5-9699, as shown in FIGS. 3 and 4, the coating layer 4 formed on the roll body 1 by thermal spraying is melted. The flattened particles 2 and 3 (metal carbide particles 2 and Ni-
It has a structure in which a Cr-based alloy 3) is laminated. That is,
Even when the film was formed, a considerable amount of the molten phase remained and was flattened because it had sufficient fluidity. Therefore, since the reaction force during lamination was small, the flat grains 2 and 3 were completely integrated. It does not mean that there are microscopic gaps between the grains. Further, a tensile stress due to the solidification shrinkage of the molten phase remains in the film, and the adhesive force and the bonding force between the particles are weak, so that the thermal spraying cannot withstand use.
【００１９】そこで、上記従来方法においては、この皮
膜に再溶融処理を施すことにより、皮膜を溶融凝固し、
図５，図６に示すような緻密化皮膜が得られるようにし
ている。然し乍ら、この再溶融処理は、処理温度が1100
℃前後と高温のため、母材の劣化や寸法変化が問題とな
り、また、この対策のためコスト高を引き起こしてしま
うという難点のあることは先に述べた通りである。Therefore, in the above-mentioned conventional method, the film is melted and solidified by subjecting the film to a remelting treatment.
A densified film as shown in FIGS. 5 and 6 is obtained. However, this re-melting process requires a processing temperature of 1100
As described above, there is a problem that deterioration of the base material and dimensional change become a problem due to a high temperature of about ° C., and that the cost is increased due to this countermeasure.
【００２０】これに対して、本発明においては、2500〜
3500℃の通常のフレ−ム温度の下で、溶射材料粉末の粒
度並びに該粉末の送給量を前述のように規制することに
よって、溶射粒子の溶融度合を、凝固寸前の、溶融相が
極少量しか含まれず、流動性が失われかけたレベルと
し、更に、該溶射粒子を前記高速でロ−ル胴部に衝突さ
せることによって、上記衝突時に粒子間或いは粒子母材
間に相互に圧縮し合う力が生じ、しかも、これが極少量
とは言え、結合剤の役割を果す溶融金属の共存下で起る
ため、加圧焼結と同様の固結状態並びに母材との強固な
結合が生起されるのである。On the other hand, in the present invention, 2500 to
At a normal frame temperature of 3500 ° C., by regulating the particle size of the thermal spray material powder and the feed rate of the powder as described above, the degree of melting of the thermal spray particles can be reduced to a level where the molten phase immediately before solidification is extremely small. It contains only a small amount and has a level at which fluidity is about to be lost. Further, by impinging the sprayed particles against the roll body at the high speed, the particles are mutually compressed between the particles or between the particle base materials at the time of the collision. A matching force is generated, and even though this is a very small amount, it occurs in the coexistence of molten metal that plays the role of a binder, so that a solidification state similar to pressure sintering and a strong bond with the base material occur It is done.
【００２１】このようにして得られた皮膜は、図１，２
に示すように、Ｎｉ-Ｃｒ系合金３が、その粒同士が一
体化した緻密な目地を形成しており、該目地中に、前記
衝突時の強い圧縮力によって偏平状に分散したＷＣ粒子
２が表面に平行に配位して散りばめられた組織となって
いる。しかも、皮膜内で起る凝固は、極少量しか含まれ
ない溶融金属が最終的に凝固するだけであって、有意な
収縮は起らず、一方、前述の強い相互圧縮力の作用下で
母材と接触することにより、母材の大きな熱容量に起因
して、上記極小量溶融相の凝固はほぼ瞬時に完了するた
め、上記圧縮力が凍結され、ショットピ−ニングに類似
した圧縮応力が残留する。The film thus obtained is shown in FIGS.
As shown in FIG. 3, the Ni—Cr alloy 3 forms a dense joint in which the grains are integrated, and the WC particles 2 dispersed flat by the strong compressive force at the time of the collision in the joint. Are arranged parallel to the surface to form a scattered structure. Moreover, the solidification that occurs in the coating only finally solidifies the molten metal, which contains only a very small amount, and does not cause significant shrinkage, while the mother is under the action of the strong mutual compressive force described above. Due to the large heat capacity of the base material due to contact with the material, the solidification of the minimal amount of molten phase is completed almost instantaneously, so that the compressive force is frozen, and a compressive stress similar to shot peening remains. .
【００２２】即ち、本発明においては、溶射材料粉末の
粒度，溶射材料の送給量（送給速度），溶射粒子速度及
びこれらを実現するための燃焼圧力のそれぞれについて
の規制が相俟って、前記作用が得られるものであり、例
えば、上記送給量が本発明における下限を下回ると、粒
子の溶融が進み過ぎて、前記皮膜が得られないばかりで
なく、衝突時に粒子が飛散するなどの不具合が生じるこ
とになる。That is, in the present invention, the regulation of the particle size of the thermal spraying material powder, the amount of the thermal spraying material (feeding speed), the thermal spraying particle speed, and the combustion pressure for realizing these are combined. For example, if the above-mentioned feed rate is below the lower limit in the present invention, the melting of the particles proceeds too much, not only the film is not obtained, but also the particles are scattered at the time of collision. Will occur.
【００２３】[0023]
【実施例】而して、本発明の実施例は表２に示すとおり
である。この実施例は本発明の効果を確認するためのも
のであって、本発明はこの実施例に限定されるものでは
ない。ここでは、ハロゲン法電気めっきラインのコンダ
クタロ−ルに本発明を適用し、この本発明ロ−ルと、従
来技術により同仕様のロ−ルに皮膜を形成した従来ロ−
ルとを比較した。また、図１は本発明方法により形成し
た溶射皮膜（溶射したまま）の一例の断面図、図２は図
１の皮膜の部分拡大図、図３は従来提案されている溶射
皮膜（溶射したまま）の一例の断面図、図４は図３の皮
膜の部分拡大図、図５は従来提案されている溶射皮膜の
再溶融処理後の断面図、図６は図５の皮膜の部分拡大
図、であり、図において、１はロ−ルの胴部、２は金属
炭化物粒子（ＷＣ粒子）、３はＮｉ-Ｃｒ系合金、４は
皮膜を示す。Embodiments Embodiments of the present invention are as shown in Table 2. This example is for confirming the effects of the present invention, and the present invention is not limited to this example. Here, the present invention is applied to a conductor roll of a halogen method electroplating line, and a roll of the present invention and a conventional roll in which a film is formed on a roll having the same specifications by a conventional technique.
And compared. FIG. 1 is a cross-sectional view of an example of a sprayed coating (as sprayed) formed by the method of the present invention, FIG. 2 is a partially enlarged view of the coating in FIG. 1, and FIG. 3 is a conventional sprayed coating (as sprayed). ), FIG. 4 is a partially enlarged view of the coating of FIG. 3, FIG. 5 is a cross-sectional view of a conventionally proposed sprayed coating after remelting, FIG. 6 is a partially enlarged view of the coating of FIG. In the figure, 1 indicates a roll body, 2 indicates metal carbide particles (WC particles), 3 indicates a Ni-Cr alloy, and 4 indicates a film.
【００２４】表２から明らかなように、本発明ロ−ル
は、溶射材料粉末の粒度，粉末送給量，燃焼圧力及び粒
子速度をそれぞれ従来より大ないしは高位レベルとして
溶射皮膜を施したことにより、同一の溶射材質でありな
がら、再溶融処理を行っていないにも拘らず、再溶融処
理を施した従来品と同等の耐久性を示しており、再溶融
処理の省略によるコスト低減効果が顕著である。As is apparent from Table 2, the roll of the present invention is obtained by applying a sprayed coating with the particle size of the sprayed material powder, the amount of powder fed, the combustion pressure and the particle speed being respectively higher or higher than those of the conventional one. Despite the same sprayed material, despite the fact that it has not been remelted, it has the same durability as the conventional product that has been remelted, and the cost reduction effect by omitting the remelting process is remarkable It is.
【００２５】本発明ロ−ルが溶射したままの皮膜によっ
てこのような耐久性を得られたのは、図２に示したよう
な固結した緻密なＮｉ-Ｃｒ系合金目地中にＷＣ粒子が
偏平状に分散して存在する皮膜形態並びに皮膜中に残留
した圧縮応力によるものと考えられる。The reason why such a durability was obtained by the coating as it was sprayed with the roll of the present invention is that the WC particles were contained in the solidified dense Ni--Cr alloy joint as shown in FIG. It is thought to be due to the form of the film that is present in a flatly dispersed state and the compressive stress remaining in the film.
【００２６】[0026]
【表２】 [Table 2]
【００２７】[0027]
【発明の効果】本発明は上述のとおりであって、従来法
の溶射後、再溶融処理を施したロ−ルと同様な耐食性、
耐摩耗性に優れた電気めっきライン用のコンダクタロ−
ルを、溶射のままで再溶融処理を施すことなく得ること
ができるので、低コストで製造することが可能となる。The present invention is as described above, and has the same corrosion resistance as a roll which has been subjected to re-melting after thermal spraying according to the conventional method.
Conductor for electroplating line with excellent wear resistance
Can be obtained as it is without thermal spraying and without re-melting, so that it can be manufactured at low cost.
【図１】本発明方法により形成した溶射皮膜（溶射した
まま）の一例の断面図。FIG. 1 is a cross-sectional view of an example of a thermal spray coating (as sprayed) formed by the method of the present invention.
【図２】図１の皮膜の部分拡大図。FIG. 2 is a partially enlarged view of the coating of FIG.
【図３】従来提案されている溶射皮膜（溶射したまま）
の一例の断面図。FIG. 3 shows a conventionally proposed thermal spray coating (as sprayed)
Sectional drawing of an example of FIG.
【図４】図３の皮膜の部分拡大図。FIG. 4 is a partially enlarged view of the coating of FIG.
【図５】従来提案されている溶射皮膜の再溶融処理後の
断面図。FIG. 5 is a cross-sectional view of a conventionally proposed thermal spray coating after a remelting process.
【図６】図５の皮膜の部分拡大図。FIG. 6 is a partially enlarged view of the coating of FIG.
１ ロ−ルの胴部 ２ 金属炭化物粒子（ＷＣ粒子） ３ Ｎｉ-Ｃｒ系合金 ４ 皮膜 1 Roll body 2 Metal carbide particles (WC particles) 3 Ni-Cr alloy 4 Coating
───────────────────────────────────────────────────── フロントページの続き (72)発明者 緑 川 悟 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社千葉製鉄所内 (58)調査した分野(Int.Cl.7，ＤＢ名) C23C 4/04 C25D 7/06 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Satoru Midorikawa 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Corp. Chiba Works (58) Field surveyed (Int. Cl. 7 , DB name) C23C 4 / 04 C25D 7/06
Claims (3)
胴部表面に金属炭化物を含まない合金から成る下地溶射
層を設けて該下地溶射層の上に、ＷＣとＮｉ-Ｃｒ系合
金から成る混合粉末を溶射し、Ｎｉ-Ｃｒ系合金の粒子
が固結した目地中に、偏平状に分散したＷＣ粒子が散り
ばめられた組織を形成したことを特徴とする電気めっき
ライン用コンダクタロ−ル。An undercoat sprayed layer made of an alloy containing no metal carbide is provided directly on the surface of the roll body or on the surface of the roll body, and WC and Ni-Cr are formed on the undercoat sprayed layer. A conductor powder for an electroplating line characterized by forming a structure in which flat-dispersed WC particles are scattered in joints where Ni-Cr-based alloy particles are solidified by spraying a mixed powder composed of a base alloy. -
末を溶射してロ−ル胴部表面に皮膜を形成させる電気め
っきライン用コンダクタロ−ルの製造方法において、前
記粉末に粒度40〜90μmの粉末を用い、該粉末を10〜20k
g/hrで送給すると共に、溶射機内の燃焼圧力を1.0〜1.5
MPaとして溶射粒子速度500〜1000m/secで溶射を行うこ
とを特徴とする電気めっきライン用コンダクタロ−ルの
製造方法。2. A method for producing a conductor roll for an electroplating line in which a mixed powder composed of WC and a Ni—Cr alloy is sprayed to form a film on the surface of a roll body, wherein the powder has a particle size of 40 to 90 μm. Using powder of 10-20k
g / hr and the combustion pressure inside the sprayer is 1.0-1.5
A method for producing a conductor roll for an electroplating line, wherein spraying is performed at a spraying particle speed of 500 to 1000 m / sec as MPa.
い合金粉末を溶射して下地溶射層を形成し、該下地溶射
層の上に請求項２の方法を適用することを特徴とする電
気めっきライン用コンダクタロ−ルの製造方法。3. The method of claim 2, wherein an alloy powder containing no metal carbide is sprayed on the surface of the roll body to form a base sprayed layer, and the method of claim 2 is applied on the base sprayed layer. For producing a conductor roll for an electroplating line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06330358A JP3130220B2 (en) | 1994-12-07 | 1994-12-07 | Conductor roll for electroplating line and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06330358A JP3130220B2 (en) | 1994-12-07 | 1994-12-07 | Conductor roll for electroplating line and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08158030A JPH08158030A (en) | 1996-06-18 |
| JP3130220B2 true JP3130220B2 (en) | 2001-01-31 |
Family
ID=18231724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06330358A Expired - Fee Related JP3130220B2 (en) | 1994-12-07 | 1994-12-07 | Conductor roll for electroplating line and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3130220B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3204637B2 (en) | 1998-01-29 | 2001-09-04 | トーカロ株式会社 | Manufacturing method of self-fluxing alloy spray-coated member |
| DE19960884C2 (en) * | 1999-12-17 | 2003-10-30 | Daimler Chrysler Ag | Coating method for thermally and mechanically loaded areas of internal combustion engines |
| JP2002088461A (en) * | 2000-09-14 | 2002-03-27 | Kawasaki Steel Corp | Corrosion resisting roll |
| JP4561359B2 (en) * | 2004-12-28 | 2010-10-13 | Ｊｆｅスチール株式会社 | Conductor roll |
| JP2013227609A (en) * | 2012-04-25 | 2013-11-07 | Ebara Corp | Part for pump and feed pump using the same |
| CN102758166B (en) * | 2012-07-27 | 2014-04-23 | 天津衡平复合材料科技有限公司 | Processing process of composite cold roll |
-
1994
- 1994-12-07 JP JP06330358A patent/JP3130220B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08158030A (en) | 1996-06-18 |
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