JPS6250432A - Alloy for electrically conductive roll for electroplating - Google Patents
Alloy for electrically conductive roll for electroplatingInfo
- Publication number
- JPS6250432A JPS6250432A JP19168385A JP19168385A JPS6250432A JP S6250432 A JPS6250432 A JP S6250432A JP 19168385 A JP19168385 A JP 19168385A JP 19168385 A JP19168385 A JP 19168385A JP S6250432 A JPS6250432 A JP S6250432A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- plating
- roll
- plated
- electroplating
- 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.)
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Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、耐食性、耐摩耗性等にすぐれ、かつ胴部表面
に付着するめっき金属の剥離性の良好な電気めっき用通
電ロール合金に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a current-carrying roll alloy for electroplating that has excellent corrosion resistance, abrasion resistance, etc., and has good peelability of plated metal adhering to the surface of the body.
連続電気亜鉛めっき等の電気めっき装置における通電ロ
ールは、所定の通電性のほかに、強酸性液であるめっき
浴(通常pH1〜2)に対する腐食抵抗や、めっき浴中
を連続通過する被めっき鋼板(通板材)との接触に耐え
る摩耗抵抗を備えていることが必要である。In addition to the specified current conductivity, the current-carrying roll in electroplating equipment such as continuous electrogalvanizing has corrosion resistance to a plating bath (usually pH 1 to 2), which is a strong acidic liquid, and the ability of the steel plate to be plated to pass continuously through the plating bath. It is necessary to have abrasion resistance that can withstand contact with (threaded plate material).
また、通電ロールは、使用中、被めっき鋼板と同じく陰
極となり、その胴部表面にも亜鉛等のめっき金°属がめ
っきされるので、その付着しためっき金属を胴部表面か
ら除去しなければならない。In addition, during use, the current-carrying roll becomes a cathode like the steel plate to be plated, and the surface of its body is also plated with zinc or other plating metal, so the adhering plated metal must be removed from the surface of the body. No.
胴部表面にめっき金属が付着したままめっき操業を行う
と、これに当接する被めっき鋼板の表面に疵が付き、め
っき品質が損なわれるからである。This is because if a plating operation is performed with the plating metal attached to the surface of the body, the surface of the steel plate to be plated that comes into contact with the body will be scratched, and the quality of the plating will be impaired.
その付着しためっき金属の除去処理は、胴部表面に砥石
等を摺り付けることにより行われるので、胴部表面は砥
石等の摺接に対する耐研磨摩耗性をも備えていることが
要求される。The adhering plating metal is removed by rubbing a grindstone or the like on the surface of the body, so the surface of the body is required to have abrasive wear resistance against sliding contact with the grindstone or the like.
従来、この電気めっき用通電ロールとして、その胴部が
、ニッケル基合金「ハステロイC」、または高ニツケル
ステンレス鋼であるSUS 316等の合金からなる
ものが賞用されている。Conventionally, rolls with body parts made of a nickel-based alloy "Hastelloy C" or an alloy such as SUS 316, a high nickel stainless steel, have been used as current-carrying rolls for electroplating.
しかるに、上記従来の通電ロールは、耐食性、耐摩耗性
等に一長一短を有し、またその胴部表面に付着しためっ
き金属の除去処理に問題がある。However, the above-mentioned conventional current-carrying roll has advantages and disadvantages in terms of corrosion resistance, abrasion resistance, etc., and also has a problem in removing the plated metal adhering to the surface of its body.
すなわち、ニッケル基合金「ハステロイC」を胴部材料
とする通電ロールは、耐食性の点では全く問題がない反
面、硬度がHs25〜30程度と低く、耐摩耗性が十分
でないため、胴部表面、特に被めっき鋼板エッヂの当接
部分に疵が付き易い。In other words, the current-carrying roll whose body material is made of the nickel-based alloy "Hastelloy C" has no problems in terms of corrosion resistance, but has a low hardness of about 25 to 30 Hs and does not have sufficient wear resistance. In particular, the abutting portion of the edge of the plated steel plate is susceptible to scratches.
その疵は被めっき鋼板表面に転写され、めっき品質低下
の原因となる。加えて、その胴部表面ば著しくめっき金
属が付着し易く、それを除去するには胴部表面に絶えず
砥石等を強く摺り付けていなければならないため、胴部
表面が疵付き易く、かつ摩耗し易い。The flaws are transferred to the surface of the steel plate to be plated, causing deterioration in plating quality. In addition, plating metal is extremely likely to adhere to the surface of the body, and in order to remove it, the surface of the body must be constantly rubbed strongly with a grindstone, etc., making the surface of the body easy to scratch and wear out. easy.
一方、SUS 316・ステンレス鋼を胴部材料とす
る通電ロールについても、硬度がHs20〜25程度と
低く、耐摩耗性に乏しいうえに、胴部表面にめっき金属
が付着し易いという点で、上記ハステロイCからなる通
電ロールと同様の問題があり、これに加えてめっき浴に
対する腐食抵抗性の点にも問題が残されている。On the other hand, the hardness of energized rolls whose body is made of SUS 316/stainless steel is as low as 20 to 25 Hs, which is poor in abrasion resistance, and the plated metal easily adheres to the surface of the body. There are problems similar to those of the current-carrying roll made of Hastelloy C, and in addition, problems remain in terms of corrosion resistance to plating baths.
このため、従来の通電ロールは、ロール胴部表面の損耗
・劣化の進みが速く、短期間、例えば約1カ月の周期で
、胴部表面を修復するための研磨加工を必要としており
、従って頻繁なロール取替と、そのための操業中断を余
儀なくされると共に、ロールの再研磨加工に多大のコス
ト負担を強いられている。For this reason, in conventional energized rolls, wear and deterioration of the roll body surface progresses rapidly, and polishing is required to repair the body surface in a short period of time, for example, every one month, and therefore, frequently. In addition to being forced to replace the rolls and suspend operations to do so, they are also forced to incur a large cost burden for re-polishing the rolls.
本発明は上述の問題点を解決するための、改良された電
気めっき用通電ロール合金を提供しようとするものであ
る。The present invention aims to provide an improved current-carrying roll alloy for electroplating in order to solve the above-mentioned problems.
〔問題点を解決するための手段および作用〕本発明の電
気めっき用通電ロール合金は、C:0.2〜3%、Si
:2%以下、Mn:2%以下、Ni:5%以下、Cr:
20〜35%、w:2〜15%、不純物であるFe:1
0%以下、残部は実質的にCoからなる。[Means and effects for solving the problems] The current-carrying roll alloy for electroplating of the present invention contains C: 0.2 to 3%, Si
: 2% or less, Mn: 2% or less, Ni: 5% or less, Cr:
20-35%, w: 2-15%, impurity Fe: 1
0% or less, and the remainder essentially consists of Co.
本発明合金からなる通電ロールは、めっき浴に対するす
ぐれた腐食抵抗を有すると共に、その腐食環境における
耐摩耗性(以下、「耐腐食摩耗性」とも言う)にすぐれ
ている。しかも、その胴部表面にめっき金属が付着して
も、胴部表面に対する密着力が微弱であるから、砥石等
により容易に除去することができ、従って砥石等による
胴部表面の疵・摩耗の発生量も極めて少ない。The current-carrying roll made of the alloy of the present invention has excellent corrosion resistance against plating baths and also has excellent wear resistance in the corrosive environment (hereinafter also referred to as "corrosion wear resistance"). Moreover, even if plated metal adheres to the surface of the body, the adhesion to the surface of the body is weak, so it can be easily removed with a grindstone, etc., and therefore the surface of the body will not be scratched or worn by the grindstone. The amount generated is also extremely small.
なお、電気めっき用通電ロールの耐食性、耐腐食摩耗性
およびこれに付着するめっき金属の剥離除去の難易性は
表面に関する問題であるから、ロール胴部の全体に本発
明合金を適用する必要はない。すなわち、ロール胴部の
芯体を他種材料にて形成し、その表面に、例えば肉盛溶
接により本発明合金からなる被覆層(表層部)を形成す
ることにより通電ロールに仕上げることもできる。本発
明合金の成分組成はかかる点をも考慮して定められたも
のである。Note that the corrosion resistance and corrosion abrasion resistance of the electroplating roll and the difficulty in peeling off and removing the plated metal adhering to it are surface-related problems, so it is not necessary to apply the present alloy to the entire roll body. . That is, the core of the roll body can be made of a different material, and a coating layer (surface layer) made of the alloy of the present invention can be formed on the surface of the core by, for example, overlay welding, thereby producing an energized roll. The composition of the alloy of the present invention was determined taking such points into consideration.
以下、本発明合金の成分限定理由について説明する。The reasons for limiting the components of the alloy of the present invention will be explained below.
C:0.2〜3%
Cの存在は、耐食性の点からは好ましくないが、その反
面、Cr、W等と結合し、炭化物を形成することにより
硬度を高め、耐摩耗性の改善に寄与する。本発明では耐
食性については、Co、W、Cr等の元素で対処し、耐
摩耗性の点からclを少なくとも0.2%含有すること
とする。C量の増加に伴って硬度が増し、耐摩耗性の向
上をみるが、3%を越えると、効果は飽和し、材質の脆
化に伴い、溶接性が悪化し、溶接肉盛時に割れが生じ易
くなる。従って、3%を上限とする。C: 0.2-3% The presence of C is unfavorable from the viewpoint of corrosion resistance, but on the other hand, it combines with Cr, W, etc. and forms carbides, increasing hardness and contributing to improving wear resistance. do. In the present invention, corrosion resistance is addressed by elements such as Co, W, and Cr, and from the viewpoint of wear resistance, at least 0.2% of Cl is contained. As the amount of C increases, hardness increases and wear resistance improves, but when it exceeds 3%, the effect is saturated and the material becomes brittle, weldability deteriorates and cracks occur during weld overlay. It becomes more likely to occur. Therefore, the upper limit is set at 3%.
Si:2%以下 Siは合金ン容製時の脱酸剤として添加される。Si: 2% or less Si is added as a deoxidizing agent during alloy manufacturing.
その量は2%を越える必要はない。The amount need not exceed 2%.
Mn:2%以下
Mnは合金溶製時に脱酸作用を果たす。その量は2%ま
でで十分である。Mn: 2% or less Mn performs a deoxidizing function during alloy melting. Its amount up to 2% is sufficient.
Cr : 20〜35%
Crは、クロムカーバイトとして基地中に分散析出する
ことにより、耐摩耗性を大きく高める。Cr: 20-35% Cr greatly improves wear resistance by being dispersed and precipitated in the matrix as chromium carbide.
また、Crは、めっき液に対する腐食溶解速度が小さく
、かつCo、Ni、l”e等と共にマトリックスを構成
し、緻密で強固な保護皮膜を形成することにより不働態
化をもたらす。この効果を得るには、少なくとも20%
のCrを必要とする。Cr量の増加に伴ってその効果は
増大するが、35%を越えると、材質が脆化し、溶接性
に問題が生じるので、35%を上限とする。In addition, Cr has a low corrosion dissolution rate in the plating solution, and forms a matrix together with Co, Ni, l''e, etc., and forms a dense and strong protective film, resulting in passivation. at least 20%
of Cr is required. The effect increases as the amount of Cr increases, but if it exceeds 35%, the material becomes brittle and problems arise in weldability, so the upper limit is set at 35%.
Ni:5%以下
Niは耐食性の改善に奏効するほか、Co基地を強化し
て耐摩耗性を高める効果を有する。このための添加量は
5%までで十分であり、好ましくは0.1〜5%である
。5%を越えて添加しても、添加量に見合う効果は得難
く、経済性を損なうので5%を上限とする。Ni: 5% or less Ni is effective in improving corrosion resistance, and also has the effect of strengthening the Co base and increasing wear resistance. For this purpose, an amount of up to 5% is sufficient, preferably 0.1 to 5%. Even if it is added in an amount exceeding 5%, it is difficult to obtain an effect commensurate with the amount added, which impairs economic efficiency, so the upper limit is set at 5%.
W:2〜15%
Wは、タングステンカーバイド(WC)としてCo基地
中に分散することにより大幅に硬度を高め、しかも耐食
性の向上に寄与する。この効果を得るためには、少なく
とも2%のWを必要とし、その効果はWの増量に伴って
増大する。但し、15%を越えると、なお硬度向上効果
はあるものの、反面、通電性の低下、溶接性の低下を招
く。また、Wは高価な元素であり、15%を越えるとコ
ストに見合う効果は得られない。よって、15%を上限
とする。W: 2 to 15% W is dispersed in the Co matrix as tungsten carbide (WC), thereby significantly increasing the hardness and contributing to improving corrosion resistance. To obtain this effect, at least 2% W is required, and the effect increases as the amount of W increases. However, if it exceeds 15%, although there is still an effect of improving hardness, on the other hand, it causes a decrease in electrical conductivity and a decrease in weldability. Further, W is an expensive element, and if it exceeds 15%, no effect commensurate with the cost can be obtained. Therefore, the upper limit is set at 15%.
Fe:10%以下
Feは本発明合金においては必要元素ではなく、10%
までの混在が許容される不純物元素である。Fe: 10% or less Fe is not a necessary element in the alloy of the present invention;
It is an impurity element that is allowed to be mixed up to.
10%を許容上限値とするのは、それを越えると、Fe
−Cr等の金属間化合物が析出することにより、耐食性
が低下し、また通電ロールとしての実使用において、胴
部表面に対するめっき金属の密化力が強くなり、その剥
離除去が困難となるからである。なお、Feが不純物と
して混在量が厳しく制限される場合は、溶解原料の選別
および精錬工程でのFe分の除去等のために製造コスト
の増加を伴うが、本発明合金においては、Feはそれ程
、有害な存在ではなく、10%もの比較的多量の混在が
許されるので、経済的に有利である。The reason why 10% is set as the allowable upper limit is that if it exceeds 10%, Fe
- Corrosion resistance decreases due to the precipitation of intermetallic compounds such as Cr, and in actual use as a current-carrying roll, the densification force of the plating metal to the body surface becomes stronger, making it difficult to peel off and remove. be. Note that if the amount of Fe mixed as an impurity is strictly limited, manufacturing costs will increase due to selection of melted raw materials and removal of Fe in the refining process, but in the alloy of the present invention, Fe is , is not harmful, and is economically advantageous because it is allowed to be mixed in a relatively large amount of 10%.
CO:残部
Coは本発明合金の基本成分であり、マトリックスをオ
ーステナイト組織として安定化すると共に、その硬度を
高める。また、Coは、イオン化傾向が貴であり、腐食
性皮膜は緻密で安定性に富むので、すぐれた不働態化能
を有しており、めっき液に対するすぐれた腐食抵抗をも
たらす。CO: The remainder Co is a basic component of the alloy of the present invention, which stabilizes the matrix as an austenitic structure and increases its hardness. In addition, Co has a noble ionization tendency, and the corrosive film is dense and highly stable, so it has excellent passivation ability and provides excellent corrosion resistance against plating solutions.
更に、COを基本成分とする本発明合金の重要な点は、
通電ロールとして良好な通電性を有していると同時に、
胴部表面の被めっき性が低く、その表面にめっき金属が
付着しても、付着力が弱く剥離し易い、ということであ
る。従って、付着しためっき金属を除去するための砥石
等の摺り付けに起因するロール胴部表面の疵・摩損が効
果的に軽減されるという利点を有している。Furthermore, the important point of the present alloy containing CO as a basic component is that
It has good electrical conductivity as a current-carrying roll, and at the same time,
This means that the surface of the body is poorly plated, and even if plated metal adheres to the surface, the adhesion is weak and it easily peels off. Therefore, it has the advantage that scratches and abrasion on the surface of the roll body caused by grinding with a grindstone or the like for removing attached plated metal can be effectively reduced.
ところで、電気めっき用通電ロールは、第1図に示すよ
うに、ロール胴部をなす中空円筒体(10)と、その両
端に嵌着された給電部材を兼ねる軸部材(20)とを基
本構成部材とする。なお、(31)は冷却水流路であっ
て、胴部の中空孔内に、これと同心円状に嵌装された筒
体(30)によって胴部内側に画成され、軸部材(20
)に穿設された流路(21)と連通している。By the way, as shown in FIG. 1, the electroplating current-carrying roll basically consists of a hollow cylindrical body (10) that forms the body of the roll, and shaft members (20) that also serve as power supply members fitted to both ends of the hollow cylindrical body (10). As a member. In addition, (31) is a cooling water flow path, which is defined inside the body by a cylinder (30) fitted concentrically in a hollow hole of the body, and is connected to the shaft member (20).
) is in communication with a flow path (21) bored in the hole.
本発明合金を通電ロール材料として適用する場合、図示
のように、胴部の表層部(12)のみを本発明合金で形
成すれば十分であり、その方が経済的でもある。このよ
うな多層構造の胴部(1o)を形成するには、胴部芯体
(11)として、適当な他種材料(例えば、SU3 3
04等のステンレス鋼、または335 C等の炭素鋼等
)からなる円筒状鋳造品または塑性加工品を準備し、そ
の外周面に、溶接肉盛法あるいは溶射法等の被覆層形成
法を適用して本発明合金からなる表層部(12)を適当
な層厚(例えば、1〜10報)に形成すればよい。また
、別法として、本発明合金からなるスリーブ(中空筒体
)を、鋳造または塑性加工等により製作し、これを胴部
芯体(11)に坑底めその他の方法で嵌着一体化する方
法を適用することもできる。When the alloy of the present invention is applied as a current-carrying roll material, it is sufficient to form only the surface layer (12) of the body with the alloy of the present invention as shown in the figure, and this is also more economical. In order to form the body (1o) having such a multilayer structure, a suitable other material (for example, SU33) is used as the body core (11).
A cylindrical cast or plastic-worked product made of stainless steel such as 04 or carbon steel such as 335C is prepared, and a coating layer forming method such as welding or thermal spraying is applied to the outer peripheral surface of the product. The surface layer portion (12) made of the alloy of the present invention may be formed to have an appropriate layer thickness (for example, 1 to 10 layers). Alternatively, a sleeve (hollow cylindrical body) made of the alloy of the present invention may be manufactured by casting or plastic working, and this may be integrated into the body core (11) by fitting it into the bottom of a pit or by other methods. Methods can also be applied.
第1表に示す成分組成を有する各合金について、腐食試
験、腐食摩耗試験、溶接性試験を行うと共に、硬度、め
っき金属密着強度を測定し、同表右欄に示す結果を得た
。For each alloy having the composition shown in Table 1, a corrosion test, a corrosion wear test, and a weldability test were conducted, and the hardness and plating metal adhesion strength were measured, and the results shown in the right column of the table were obtained.
表中、賦香(Na)1〜9は本発明例、11h101〜
10Bは比較例である。比較例11m101〜108の
うち、m 101は従来材であるSUS 316相当
、Ilh102は従来材である「ハステロイC」相当の
例であり、隘103〜108は、本発明合金に類似する
成分組成を有しているが、いずれかの元素の含有量(表
中、下線付)が本発明の規定からはずれている例である
。In the table, fragrance (Na) 1 to 9 are examples of the present invention, 11h101 to
10B is a comparative example. Comparative Examples 11m101-108, m101 is equivalent to SUS 316 which is a conventional material, Ilh102 is an example equivalent to "Hastelloy C" which is a conventional material, and numbers 103 to 108 are examples having a composition similar to the present alloy. However, the content of one of the elements (underlined in the table) deviates from the provisions of the present invention.
各測定および試験条件は次ぎのとおりである。Each measurement and test condition is as follows.
CI)硬度測定 ショア硬さ計により供試材の表面硬さを測定。CI) Hardness measurement Measure the surface hardness of the sample material using a Shore hardness meter.
[n)めっき金属付着強度の測定
(イ)めっき層の形成
板状試片(20w X 30fl) (T )の表面を
湿式研磨(#1000) した後、第2図に示すように
リード線(Iりを接続すると共に、被めっき面(A)(
20mmx20n)を残して樹脂でマスキングし、これ
を陰極とし、亜鉛板を陽極として亜鉛めっきを行う。[n) Measurement of adhesion strength of plated metal (a) Formation of plated layer After wet polishing (#1000) the surface of the plate-shaped specimen (20w x 30fl) (T), the lead wire ( At the same time, connect the plated surface (A) (
20mm x 20n) was left and masked with resin, and this was used as a cathode, and zinc plating was performed using a zinc plate as an anode.
めっき液組成:20g/jl!HzSOい 100 g
/ I!Na z S O4,150g / l Z
n S 04(液温50℃)、電流密度: 50A
/ d rd、電極間距離:3(Jan(一定)、通電
時間:50分。Plating solution composition: 20g/jl! HzSO 100g
/ I! Naz SO4,150g/l Z
n S 04 (liquid temperature 50°C), current density: 50A
/d rd, distance between electrodes: 3 (Jan (constant), energization time: 50 minutes.
(ロ)めっき層剥離試験
上記めっきの後、被めっき面に、エポキシ樹脂を介して
、第2図に示すようにり6字状ステンレス鋼板片(板厚
2龍)(P)を接着し、120°cx1時間の硬化処理
を施す。ついで、引張試験機にて、L字状鋼板片(P)
の突片(Pl)と、試験片(T)の裏面に予め接合して
いた支持棒(B)とをチャッキングして破断させ、めっ
き層の剥離状況を目視観察し、破断荷重とめっき層の剥
離面積とから、めっき付着強度(kg / c++l
)を求める。(b) Plating layer peeling test After the above plating, a six-shaped stainless steel plate piece (plate thickness 2 dragons) (P) was adhered to the surface to be plated via epoxy resin as shown in Fig. 2, A curing treatment is performed at 120°c for 1 hour. Then, using a tensile tester, the L-shaped steel plate piece (P)
The protruding piece (Pl) and the support rod (B) previously joined to the back surface of the test piece (T) were broken by chucking, and the peeling status of the plating layer was visually observed, and the breaking load and the plating layer were From the peeling area of , the plating adhesion strength (kg/c++l
).
(II[)腐食試験
試験片(20’X30LX 5 t、鰭)を、硫酸酸性
腐食液である亜鉛めっき液中に7日間浸漬した後、試験
片の腐食減量(g / rd h )を測定する。(II [) Corrosion test After immersing a test piece (20' x 30 L x 5 t, fin) in a galvanizing solution, which is a sulfuric acid acid corrosive solution, for 7 days, the corrosion loss (g/rd h) of the test piece is measured. .
めっき液組成: 20g / ff HzS 04.1
00g/jl’Na z S Oa、150 g /
l Z n S Os、液A=50℃
(IV)腐食摩耗試験
丸棒状試験片(15φ×100L、 fl)を、亜鉛め
っき液中、300rpmで回転させながら、その表面に
相手材として5GP50を2 kgの荷重で押付け、7
日間の連続負荷後の摩耗による試験片の重量減少を測定
する。各供試材の摩耗減量は、比較例隘101(S U
S 316相当)の摩耗減量を100とする重量比
で表した。Plating solution composition: 20g/ff HzS 04.1
00g/jl'Na z S Oa, 150g/
l Z n S Os, liquid A = 50°C (IV) Corrosion and wear test A round rod-shaped test piece (15φ x 100L, fl) was rotated at 300 rpm in a galvanizing solution, and 2 pieces of 5GP50 were applied to its surface as a mating material. Press with a load of kg, 7
Measure the weight loss of the specimen due to wear after days of continuous loading. The abrasion loss of each sample material is shown in Comparative Example No. 101 (S U
It is expressed as a weight ratio, with the abrasion loss of S316 (equivalent to S316) being 100.
めっき液組成:20g/1H2soい100g/xNa
zsOn、150 g/l Zn5Oa液温:50℃
(V)溶接性試験
各供試合金からなる棒状フィラーメタル(断面4龍φ、
長さ200〜2501m)を用い、TIG溶接法により
、平板状基材(SUS304相当材、予熱温度600℃
)の表面に肉盛溶接を行い、ビード長さ100 n、ビ
ード幅2011の肉盛層を形成した。Plating solution composition: 20g/1H2so 100g/xNa
zsOn, 150 g/l Zn5Oa liquid temperature: 50°C (V) Weldability test Rod-shaped filler metal (cross section 4 dragon φ,
A flat base material (SUS304 equivalent material, preheating temperature 600℃) was welded using TIG welding method.
) to form a build-up layer with a bead length of 100 n and a bead width of 2011 mm.
上記肉盛溶接後、その基材を、ビードの長手方向に20
酊の間隔をおいて、合計5個所でビード長手方向に対し
直角方向に切断し、肉盛層の切断端面における割れの有
無を液体浸透探傷試験により判定し、溶接性の良否を評
価した。表中、「溶接性」欄の「○」は割れ無し、「×
」は割れ有り、を意味する。After the above-mentioned overlay welding, the base material is
The bead was cut in a direction perpendicular to the longitudinal direction of the bead at a total of five locations at equal intervals, and the presence or absence of cracks on the cut end surface of the built-up layer was determined by a liquid penetrant test to evaluate the quality of weldability. In the table, "○" in the "Weldability" column means no cracking, "×"
” means that there is a crack.
第1表に示すとおり、本発明例は、従来材である5US
316材(賦香101)や「ハステロイC」(賦香10
2)に比し、めっき金属の付着強度が小さく、その剥離
性が良好であること、および硬度と摩耗減量との総合比
較から、約3倍以上の摩耗抵抗を有していることがわか
る。また、耐食性も、これらの従来材と同等ないしはそ
れ以上であり、溶接性も良好である。なお、本発明合金
に類する成分組成を有する比較何階103〜108につ
いてみると、Th103(C量不足)では、硬度が低く
、耐摩耗性が不足しており、Th104(C量過剰)で
は、溶接性が悪(、またll&x105(W不足)は、
耐摩耗性および耐食性に劣る点で本発明例に及ばない。As shown in Table 1, the example of the present invention is made of 5US, which is a conventional material.
316 material (scented 101) and "Hastelloy C" (scented 10)
Compared to 2), it can be seen that the adhesion strength of the plated metal is lower and its releasability is better, and from a comprehensive comparison of hardness and abrasion loss, it has about three times or more of the abrasion resistance. Furthermore, the corrosion resistance is equal to or higher than those of these conventional materials, and the weldability is also good. In addition, when looking at comparative grades 103 to 108 having a composition similar to the present alloy, Th103 (insufficient C amount) has low hardness and lacks wear resistance, and Th104 (excessive C amount), Poor weldability (also ll&x105 (insufficient W),
It is inferior to the examples of the present invention in terms of poor wear resistance and corrosion resistance.
更に、m106(Cr不足)は硬さおよび耐摩耗性が低
く(これはクロムカーバイトの生成量の不足による)、
一方隘107(Cr過剰)では、溶接性が悪(、しかも
Cr41の多い割に硬度の向上効果はわずかであり、ま
たFe量が上限を越える患108はCr−Fe等の金属
間化合物の析出により耐食性が悪く、いずれも本発明例
に及ばない。Furthermore, m106 (Cr deficient) has low hardness and wear resistance (this is due to the insufficient amount of chromium carbide produced),
On the other hand, in No. 107 (excessive Cr), weldability is poor (and the effect of improving hardness is small despite the large amount of Cr41), and in No. 108, where the amount of Fe exceeds the upper limit, intermetallic compounds such as Cr-Fe are precipitated. Therefore, the corrosion resistance was poor, and both were inferior to the examples of the present invention.
本発明の通電ロール合金は、めっき液の腐食環境におけ
る耐食性、耐腐食摩耗性にすぐれていることに加えて、
被めっき性が低く、めっき金属の付着強度が小さい。The current-carrying roll alloy of the present invention has excellent corrosion resistance and corrosion wear resistance in the corrosive environment of plating solutions, as well as
Poor plating properties and low adhesion strength of plating metal.
本発明合金からなる表層部を有する電気めっき用通電ロ
ールは、めっき液による腐食、および被めっき鋼板の接
触による腐食摩耗量が少なく、かつ表面に付着しためっ
き金属を除去するための砥石等の摺り付けに起因する疵
・摩損の発生も軽微であるので、長期にわたって平滑美
麗な表面状態が保持される。従って、従来のような@緊
なロール取替の煩わしさやロール再生のための研磨加工
に要する費用が大幅に軽減されると共に、安定した連続
めっき操業が維持され、しかもめっき製品の品質向上・
安定化の効果が得られる。The current-carrying roll for electroplating, which has a surface layer made of the alloy of the present invention, has less corrosion caused by the plating solution and corrosion caused by contact with the steel plate to be plated, and is suitable for grinding with a grindstone or the like to remove plated metal adhering to the surface. Since the occurrence of scratches and abrasion due to application is slight, the smooth and beautiful surface condition is maintained for a long period of time. Therefore, the hassle of conventional roll replacements and the cost of polishing for roll regeneration are significantly reduced, stable continuous plating operations are maintained, and the quality of plated products is improved.
A stabilizing effect can be obtained.
なお、本発明合金は、前記例示の亜鉛めっきに限られず
、錫めっき、ニッケルめっき等、各種の電気めっき用通
電ロール合金として有用であり、更には溶融めっきにお
いて、被めっき鋼板をめっき浴中に通板させる案内ロー
ルであるジンクロール等の材料としても有用である。The alloy of the present invention is useful as a current-carrying roll alloy for various types of electroplating, such as tin plating, nickel plating, etc., and is not limited to the above-mentioned zinc plating. It is also useful as a material for zinc rolls, etc., which are guide rolls for passing sheets through.
第1図は、本発明合金にて胴部表層部を形成する場合の
通電ロールの層構造の例を示す一部切欠正面図、第2図
CI)および(II)は実施例関係の試験片の形態を示
す斜視説明図である。
!0:ロール胴部、11:胴部芯体、12:胴部表層部
、′l゛:試験片。Fig. 1 is a partially cutaway front view showing an example of the layered structure of an energizing roll when the surface layer of the body is formed of the alloy of the present invention, and Fig. 2 CI) and (II) are test pieces related to Examples. It is a perspective explanatory view showing the form of. ! 0: roll body, 11: body core, 12: body surface layer, 'l゛: test piece.
Claims (1)
以下、Ni:5%以下、Cr:20〜35%、W:2〜
15%、不純物であるFe:10%以下、残部実質的に
Coからなる電気めっき用通電ロール合金。(1) C: 0.2-3%, Si: 2% or less, Mn: 2%
Below, Ni: 5% or less, Cr: 20-35%, W: 2-
A current-carrying roll alloy for electroplating consisting of 15% Fe as an impurity, 10% or less, and the remainder substantially Co.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19168385A JPS6250432A (en) | 1985-08-29 | 1985-08-29 | Alloy for electrically conductive roll for electroplating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19168385A JPS6250432A (en) | 1985-08-29 | 1985-08-29 | Alloy for electrically conductive roll for electroplating |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6250432A true JPS6250432A (en) | 1987-03-05 |
Family
ID=16278714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19168385A Pending JPS6250432A (en) | 1985-08-29 | 1985-08-29 | Alloy for electrically conductive roll for electroplating |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6250432A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007007797A1 (en) * | 2005-07-13 | 2007-01-18 | Mitsubishi Materials Corporation | Cobalt- or iron-base alloy excellent in the resistance to corrosion from molten lead-free solder and members of lead-free soldering apparatus which are made of the alloy |
JP2013513021A (en) * | 2009-12-03 | 2013-04-18 | ゾモント・ゲーエムベーハー | Apparatus and method for making electrical contact with processing material in an electroplating apparatus |
JP2018040023A (en) * | 2016-09-05 | 2018-03-15 | 新日鐵住金株式会社 | Member for in-bath apparatus |
JP2018040022A (en) * | 2016-09-05 | 2018-03-15 | 新日鐵住金株式会社 | Member for in-bath apparatus |
JP2020063495A (en) * | 2018-10-19 | 2020-04-23 | 山陽特殊製鋼株式会社 | Co-BASED ALLOY AND POWDER THEREOF |
-
1985
- 1985-08-29 JP JP19168385A patent/JPS6250432A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007007797A1 (en) * | 2005-07-13 | 2007-01-18 | Mitsubishi Materials Corporation | Cobalt- or iron-base alloy excellent in the resistance to corrosion from molten lead-free solder and members of lead-free soldering apparatus which are made of the alloy |
JP2013513021A (en) * | 2009-12-03 | 2013-04-18 | ゾモント・ゲーエムベーハー | Apparatus and method for making electrical contact with processing material in an electroplating apparatus |
JP2018040023A (en) * | 2016-09-05 | 2018-03-15 | 新日鐵住金株式会社 | Member for in-bath apparatus |
JP2018040022A (en) * | 2016-09-05 | 2018-03-15 | 新日鐵住金株式会社 | Member for in-bath apparatus |
JP2020063495A (en) * | 2018-10-19 | 2020-04-23 | 山陽特殊製鋼株式会社 | Co-BASED ALLOY AND POWDER THEREOF |
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