JPH06201573A - Evaluating method of adhesion properties of plating - Google Patents

Evaluating method of adhesion properties of plating

Info

Publication number
JPH06201573A
JPH06201573A JP4348563A JP34856392A JPH06201573A JP H06201573 A JPH06201573 A JP H06201573A JP 4348563 A JP4348563 A JP 4348563A JP 34856392 A JP34856392 A JP 34856392A JP H06201573 A JPH06201573 A JP H06201573A
Authority
JP
Japan
Prior art keywords
plating
test piece
rotating body
adhesion
test
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.)
Withdrawn
Application number
JP4348563A
Other languages
Japanese (ja)
Inventor
Hiroyasu Yamamoto
普康 山本
Toshiyuki Shiraishi
利幸 白石
Matsuo Adaka
松男 阿高
Kazuo Kanamaru
和雄 金丸
Ryoji Sato
良司 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUJIMURA KOGYO KK
ISHIKAWA KINZOKU KOGYO KK
Nippon Steel Corp
Original Assignee
FUJIMURA KOGYO KK
ISHIKAWA KINZOKU KOGYO KK
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FUJIMURA KOGYO KK, ISHIKAWA KINZOKU KOGYO KK, Nippon Steel Corp filed Critical FUJIMURA KOGYO KK
Priority to JP4348563A priority Critical patent/JPH06201573A/en
Publication of JPH06201573A publication Critical patent/JPH06201573A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE:To provide an evaluating method of adhesion properties of plating whereby the adhesion properties of plating is correctly evaluated and the optimum plating condition is obtained. CONSTITUTION:An annular or disc-like test piece 4 of the same material and the same diameter as those of a rotary body 1 is attached to a side end of the rotary body 1. The test piece 4 is subjected to a composite plating together with the rotary body 1. The adhesion properties of the plated test piece 4 is tested. Since the test piece 4 is processed through the same composite plating as that of the rotary body 1, the adhesion properties of the plating of the test piece 4 are substantially identical to those of tone rotary body 1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明はメッキ密着性評価方
法、特に金属製の回転体の周面に施された複合メッキの
密着性を評価する方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plating adhesion evaluation method, and more particularly to a method for evaluating adhesion of a composite plating applied to the peripheral surface of a metallic rotating body.

【0002】[0002]

【従来の技術】周面に比較的大きな荷重が加わる圧延ロ
ール、搬送ローラーなどの回転体で、摩耗を防ぎ寿命を
延ばすために、回転体周面にメッキを施すことが行われ
ている。メッキとして、Ni,Ni−P,Crなどの単
体メッキまたは前記金属をマトリックスとし、これにS
iC,ZrB2 などの硬質粒子を分散させた複合メッキ
が用いられている。また、上記のような回転体では要求
される耐摩耗性の点からメッキの密着性が重要である。
したがって、メッキされた回転体について密着性を評価
し、またこの結果に基づいてメッキ条件などの最適条件
を求めている。
2. Description of the Related Art A rotating body such as a rolling roll or a conveying roller, which has a relatively large load on its peripheral surface, is plated on the peripheral surface of the rotating body in order to prevent wear and extend its life. As the plating, a single plating such as Ni, Ni-P, Cr or the above metal is used as a matrix, and S is added to this.
Composite plating in which hard particles such as iC and ZrB 2 are dispersed is used. Further, in the rotating body as described above, the adhesion of plating is important from the viewpoint of wear resistance required.
Therefore, the plated rotor is evaluated for adhesion, and optimal conditions such as plating conditions are determined based on the results.

【0003】従来、単体メッキではメッキの密着性はメ
ッキ面の光沢度と関係があるため、メッキ表面の光沢度
からメッキの密着性を推定している。一方、複合メッキ
では硬質粒子による凹凸によりメッキ表面に光沢が生じ
ないので、メッキの外観からメッキの密着性を推定する
ことは困難であった。そのため、小さなモデルメッキ装
置を用いて最適メッキ条件を求める方法が一般にとられ
ている(特開昭62−120498参照)。
Conventionally, in single plating, the adhesion of plating is related to the glossiness of the plating surface, so the adhesion of plating is estimated from the glossiness of the plating surface. On the other hand, in the case of composite plating, it is difficult to estimate the adhesion of the plating from the appearance of the plating, because the plating surface does not have gloss due to the unevenness of the hard particles. Therefore, a method of obtaining the optimum plating conditions using a small model plating apparatus is generally used (see Japanese Patent Laid-Open No. 62-120498).

【0004】[0004]

【発明が解決しようとする課題】しかし、上記モデルメ
ッキ装置によりメッキしたものと実機メッキ装置により
メッキしたものでは、メッキの性状が必ずしも一致しな
い。したがって、モデルメッキ装置を用いて決定した最
適メッキ条件は、実機メッキ装置にスケールアップした
際に最適条件とはならないことがある。このような場
合、密着性の不十分なメッキが発生し、メッキが剥離し
て十分な耐摩耗性が得られないという問題があった。
However, the properties of plating do not always match between those plated by the model plating device and those plated by the actual plating device. Therefore, the optimum plating conditions determined using the model plating device may not be the optimum conditions when scaled up to the actual plating device. In such a case, there is a problem that plating with insufficient adhesion occurs, the plating is peeled off, and sufficient abrasion resistance cannot be obtained.

【0005】この発明は、メッキ密着性を正確に評価
し、最適なメッキ条件を得ることができるメッキ密着性
評価方法を提供しようとするものである。
The present invention is intended to provide a plating adhesion evaluation method capable of accurately evaluating plating adhesion and obtaining optimum plating conditions.

【0006】[0006]

【課題を解決するための手段】第1の発明のメッキ密着
性評価方法は、回転体と同材質かつ同径の環状または円
板状試験片を回転体の側端に取り付け、回転体とともに
試験片を複合メッキし、複合メッキした試験片について
密着性試験を行う。
According to a first aspect of the present invention, there is provided a plating adhesion evaluation method in which a ring-shaped or disk-shaped test piece having the same material and diameter as that of a rotating body is attached to a side end of the rotating body and tested together with the rotating body. A piece is composite-plated, and an adhesion test is performed on the composite-plated test piece.

【0007】複合メッキのマトリックスは、Ni,Ni
−P,Crなどであり、分散剤はSiC,ZrB2 Si
3 4 ,Al2 3 ,Cr3 2 ,B4 C,CBN,ダ
イヤモンドなどの硬質粒子である。メッキ法は電解法ま
たは無電解法のいずれであってもよい。
The matrix of the composite plating is Ni, Ni
-P, Cr, etc., and the dispersant is SiC, ZrB 2 Si
Hard particles such as 3 N 4 , Al 2 O 3 , Cr 3 C 2 , B 4 C, CBN, and diamond. The plating method may be either an electrolytic method or an electroless method.

【0008】試験片の幅は回転体の直径の1/2〜1/
50程度である。ボルト止め、局部溶接、局部ろう付け
など取外し容易な方法により、試験片を回転体の側端面
に固定する。試験片は回転体の両側端面にそれぞれ取り
付けてもよい。
The width of the test piece is 1/2 to 1/1 / the diameter of the rotating body.
It is about 50. Fix the test piece to the side end surface of the rotating body by an easily removable method such as bolting, local welding, and local brazing. The test pieces may be attached to both end surfaces of the rotating body.

【0009】密着性試験を行うには、試験片に圧下ロー
ルを押し付けた状態で、試験片および圧下ロールのうち
の少なくとも一方を回転する。試験片に与える平均面圧
は、50〜200kgf/mm2 程度である。また、試験片と
圧下ロールとの間の速度差の割合((圧下ロール周速度
−試験片周速度)/試験片周速度)は、0〜0.2程度
である。
To perform the adhesion test, at least one of the test piece and the pressing roll is rotated while the pressing roll is pressed against the test piece. The average surface pressure applied to the test piece is about 50 to 200 kgf / mm 2 . The ratio of the speed difference between the test piece and the reduction roll ((rolling roll peripheral speed-test piece peripheral speed) / test piece peripheral speed) is about 0 to 0.2.

【0010】第2の発明のメッキ密着性評価方法は、回
転体と同材質の帯状試験片を回転体の側端寄り周面に巻
き付け、回転体とともに試験片を複合メッキし、複合メ
ッキした試験片について密着性試験を行う。
In the plating adhesion evaluation method of the second invention, a strip-shaped test piece made of the same material as that of the rotating body is wound around the peripheral surface of the rotating body near the side end, and the test piece is composite-plated together with the rotating body. Perform an adhesion test on one piece.

【0011】複合メッキのマトリックスおよび分散剤は
上記第1の発明のものと同じである。
The matrix of the composite plating and the dispersant are the same as those of the first invention.

【0012】試験片の幅は回転体の直径の1/2〜1/
50程度、厚みは0.1〜0.5 mm 程度である。ま
た、回転体の周面に巻き付けた帯板状の試験片の両端部
を溶接またはろう付けにして試験片を回転体の側端部周
面に固定する。試験片は回転体の両側の端部寄り周面に
それぞれ取り付けてもよい。
The width of the test piece is 1/2 to 1/1 / the diameter of the rotating body.
The thickness is about 50 and the thickness is about 0.1 to 0.5 mm. Further, both ends of a strip-shaped test piece wound around the peripheral surface of the rotating body are welded or brazed to fix the test piece to the peripheral surface of the side end portion of the rotating body. The test pieces may be attached to the peripheral surfaces on both sides of the rotating body near the ends.

【0013】密着性試験を行うには、試験片に摺動子を
押し付けた状態で、試験片および摺動子のうちの少なく
とも一方を移動する。試験片に与える平均面圧は、50
〜200kgf/mm2 程度、摺動速度は0.001〜0.1
m/s程度である。また、上記摺動試験の他に、折り曲げ
試験、ダイヤモンドカッター試験、表面粗度試験、走査
電子顕微鏡写真、液体ホーニングによる剥離試験などを
用いることもできる。
To perform the adhesion test, at least one of the test piece and the slider is moved while the slider is pressed against the test piece. The average surface pressure applied to the test piece is 50
~200kgf / mm 2 about, sliding speed is 0.001 to 0.1
It is about m / s. In addition to the sliding test, a bending test, a diamond cutter test, a surface roughness test, a scanning electron micrograph, a peeling test by liquid honing, and the like can be used.

【0014】[0014]

【作用】回転体と同材質かつ同径の試験片が回転体とと
もにメッキされるので、回転体および試験片はメッキ条
件(メッキ浴、メッキ浴温度、メッキ電流密度その他)
が同じとなる。したがって、試験片には回転体と同一の
複合メッキが施され、試験片のメッキ密着性は回転体の
メッキ密着性と実質的に同じである。
[Function] Since the test piece of the same material and the same diameter as the rotating body is plated together with the rotating body, the rotating body and the test piece have plating conditions (plating bath, plating bath temperature, plating current density, etc.).
Will be the same. Therefore, the test piece is subjected to the same composite plating as that of the rotating body, and the plating adhesion of the test piece is substantially the same as the plating adhesion of the rotating body.

【0015】[0015]

【実施例】【Example】

実施例1 図1は第1の発明の実施例を示している。回転体は圧延
ロール1であって、胴部2の両側端にそれぞれ環状の試
験片3がろう付けにより固定されている。圧延ロール1
は、メッキ室6に挿入され複合メッキされる。メッキ室
6は円筒状をしており、内周面に電極7が取り付けられ
ている。メッキ室6はメッキ浴9が充満され、ロール軸
3が貫通する部分にはシール装置8が設けられている。
圧延ロール1を回転しながら、圧延ロール1および試験
片4の周面をメッキする。メッキ後、ろう付けを切断し
て圧延ロール1より試験片4を分離し、密着性試験を行
う。
Embodiment 1 FIG. 1 shows an embodiment of the first invention. The rotating body is a rolling roll 1, and annular test pieces 3 are fixed to both ends of the body 2 by brazing. Rolling roll 1
Are inserted into the plating chamber 6 and subjected to composite plating. The plating chamber 6 has a cylindrical shape, and the electrode 7 is attached to the inner peripheral surface thereof. The plating chamber 6 is filled with a plating bath 9, and a seal device 8 is provided at a portion where the roll shaft 3 penetrates.
The rolling roll 1 and the peripheral surface of the test piece 4 are plated while rotating the rolling roll 1. After plating, the brazing is cut, the test piece 4 is separated from the rolling roll 1, and an adhesion test is performed.

【0016】図2は密着性試験装置を模式的に示してい
る。回転可能に支持した試験片4に圧下ロール11を押
し付けた状態で、圧下ロール11を回転駆動する。圧下
ロール11を所定回数回転した後、試験片4の周面を観
察し、メッキ剥離の有無を調べる。
FIG. 2 schematically shows the adhesion test apparatus. The pressing roll 11 is rotationally driven while the pressing roll 11 is pressed against the test piece 4 rotatably supported. After rotating the pressing roll 11 a predetermined number of times, the peripheral surface of the test piece 4 is observed to check whether or not plating is peeled off.

【0017】ここで、試験例について説明する。圧延ロ
ールおよび試験片はいずれも、ステンレス鋼SUS(4
30)製である。圧延ロールは直径;40 mm 、胴長;
400 mm であり、試験片は直径;40 mm 、幅;10
mm である。試験片を圧延ロールの片側端にボルトで固
定し、両者を一体にして複合メッキした。複合メッキ
は、マトリックスがCr、分散剤がSiCである。つぎ
に、直径;160 mm 、幅;15 mm の圧下ロールを、
試験片にすべり率((VA −VD )/VD ×100)3
0%で転動摩耗させたのち、試験片表面を観察した。そ
の結果に基づいて最適なメッキ条件を決定した。この結
果、圧延ロールは20万回転以上の耐剥離性が得られ
た。
Here, a test example will be described. Both the rolling roll and the test piece were made of stainless steel SUS (4
30). The rolling roll has a diameter of 40 mm and a body length of 40 mm.
400 mm, test piece diameter: 40 mm, width: 10
mm. The test piece was fixed to one end of the rolling roll with a bolt, and both were integrated to perform composite plating. In the composite plating, the matrix is Cr and the dispersant is SiC. Next, a reduction roll having a diameter of 160 mm and a width of 15 mm is
Slip rate ((V A −V D ) / V D × 100) on the test piece 3
After rolling wear at 0%, the surface of the test piece was observed. The optimum plating conditions were determined based on the results. As a result, the rolling roll obtained a peeling resistance of 200,000 rotations or more.

【0018】実施例2 図3は第2の発明の実施例を示している。回転体は圧延
ロール1であって、胴部2の両側端寄りの周面にそれぞ
れ帯状の試験片5が巻き付けられ、試験片5の両端はろ
う付けされている。メッキ装置およびメッキ方法は第1
の実施例のものと同じである。メッキ後、ろう付けを切
断して圧延ロール1より試験片5を分離し、密着性試験
を行う。
Embodiment 2 FIG. 3 shows an embodiment of the second invention. The rotating body is a rolling roll 1, and strip-shaped test pieces 5 are wound around the peripheral surfaces of the body portion 2 near both ends, and both ends of the test pieces 5 are brazed. The plating apparatus and plating method are first
Is the same as that of the embodiment. After plating, the brazing is cut, the test piece 5 is separated from the rolling roll 1, and an adhesion test is performed.

【0019】図4は密着性試験装置を模式的に示してい
る。定盤14に固定したした試験片5に摺動子13を押
し付けた状態で、摺動子13を試験片5の長手方向に沿
って移動する。試験片5の全長にわたって摺動子13を
摺動させた後、試験片5の表面を観察し、メッキ剥離の
有無を調べる。
FIG. 4 schematically shows the adhesion test apparatus. The slider 13 is moved along the longitudinal direction of the test piece 5 while the slider 13 is pressed against the test piece 5 fixed to the surface plate 14. After sliding the slider 13 over the entire length of the test piece 5, the surface of the test piece 5 is observed to check whether plating is peeled off.

【0020】ここで、試験例について説明する。圧延ロ
ールおよび試験片(いずれもステンレス鋼(SUS43
0))にマトリックスがCr、分散剤がSiCの複合メ
ッキを行った。圧延ロールは直径;40 mm 、胴長;4
00 mm である。また、試験片は厚み;0.2 mm 、
幅;15 mm である。この試験片に平均面圧100kgf/
mm2 、摺動速度0.01m/s を与えたのち試験片表面を
観察し、その結果に基づいて最適なメッキ条件を決定し
た。この結果、圧延ロールは20万回転以上の耐剥離性
が得られた。
Here, a test example will be described. Rolling rolls and test pieces (stainless steel (SUS43
0)) was subjected to composite plating in which the matrix was Cr and the dispersant was SiC. The rolling roll has a diameter of 40 mm and a body length of 4
It is 00 mm. The test piece has a thickness of 0.2 mm,
Width: 15 mm. Average surface pressure of 100kgf /
After giving a mm 2 and a sliding speed of 0.01 m / s, the surface of the test piece was observed, and the optimum plating condition was determined based on the result. As a result, the rolling roll obtained a peeling resistance of 200,000 rotations or more.

【0021】[0021]

【発明の効果】このメッキ密着性評価方法では、試験片
は回転体と同一の複合メッキが施されるので、試験片の
メッキ密着性は回転体のメッキ密着性と実質的に同じと
なる。したがって、メッキ密着性を正確に評価し、最適
なメッキ条件を得ることができ、耐摩耗性に優れた回転
体を提供することができる。
In this plating adhesion evaluation method, the test piece is subjected to the same composite plating as the rotating body, so that the plating adhesion of the test piece is substantially the same as that of the rotating body. Therefore, it is possible to accurately evaluate the plating adhesion, obtain optimum plating conditions, and provide a rotating body having excellent wear resistance.

【0022】なお、メッキ密着性試験でメッキが不良で
あることが判明した場合、たとえば3価Cr複合メッキ
であれば塩酸でメッキを除去して、より最適な条件で再
メッキすることができる。
When the plating adhesion test shows that the plating is defective, for example, in the case of trivalent Cr composite plating, the plating can be removed with hydrochloric acid and replating can be performed under more optimal conditions.

【図面の簡単な説明】[Brief description of drawings]

【図1】第1の発明の実施例であって、圧延ロールを環
状試験片とともに複合メッキしている状態を模式的に示
す図面である。
FIG. 1 is a drawing schematically showing an embodiment of the first invention, in which a rolling roll and an annular test piece are composite-plated.

【図2】第1の実施例で用いられる密着性試験装置を模
式的に示す図面である。
FIG. 2 is a drawing schematically showing an adhesion test apparatus used in the first embodiment.

【図3】第2の発明の実施例であって、圧延ロールを帯
状試験片とともに複合メッキしている状態を模式的に示
す図面である。
FIG. 3 is a drawing schematically showing an example of the second invention, in which a rolling roll and a strip test piece are composite-plated.

【図4】第2の実施例で用いられる密着性試験装置を模
式的に示す図面である。
FIG. 4 is a drawing schematically showing an adhesion test device used in a second embodiment.

【符号の説明】[Explanation of symbols]

1 圧延ロール 2 ロール胴部 3 ロール軸 4 環状試験片 5 帯状試験片 6 メッキ室 7 電極 8 シール装置 9 メッキ浴 11 圧下ロール 13 摺動子 1 Rolling Roll 2 Roll Body 3 Roll Shaft 4 Annular Test Specimen 5 Strip Test Specimen 6 Plating Chamber 7 Electrode 8 Sealing Device 9 Plating Bath 11 Rolling Roll 13 Slider

───────────────────────────────────────────────────── フロントページの続き (72)発明者 山本 普康 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 (72)発明者 白石 利幸 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 (72)発明者 阿高 松男 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 (72)発明者 金丸 和雄 福岡県北九州市小倉北区赤坂海岸2−1 石川金属工業株式会社内 (72)発明者 佐藤 良司 福岡県北九州市若松区大字二島495−143 藤村工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Fuyasu Yamamoto 20-1 Shintomi, Futtsu City, Chiba Shin Nippon Steel Co., Ltd. Technology Development Headquarters (72) Inventor Toshiyuki Shiraishi 20-1 Shintomi, Futtsu City, Chiba Prefecture (72) Inventor, Matsuo Ataka, 20-1 Shintomi, Futtsu City, Chiba Prefecture Nippon Steel Co., Ltd., Technical Development Headquarters (72) Inventor, Kazuo Kanemaru Akasakakaigan, Kitakyushu, Kitakyushu, Fukuoka 2-1 Ishikawa Metal Industry Co., Ltd. (72) Inventor Ryoji Sato 495-143 Niijima, Fukushima, Wakamatsu-ku, Kitakyushu City, Fukuoka Prefecture Fujimura Industry Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 回転体の周面に施された複合メッキの密
着性評価方法において、回転体と同材質かつ同径の環状
または円板状試験片を回転体の側端に取り付け、回転体
とともに試験片を複合メッキし、複合メッキした試験片
について密着性試験を行うことを特徴とするメッキ密着
性評価方法。
1. A method for evaluating adhesion of composite plating applied to a peripheral surface of a rotating body, wherein an annular or disk-shaped test piece having the same material and diameter as that of the rotating body is attached to a side end of the rotating body. A method for evaluating the adhesion of plating, which is characterized in that a test piece is composite-plated together with the test, and a test of the composite plating is performed.
【請求項2】 回転体の周面に施された複合メッキの密
着性評価方法において、回転体と同材質の帯状試験片を
回転体の側端寄り周面に巻き付け、回転体とともに試験
片を複合メッキし、複合メッキした試験片について密着
性試験を行うことを特徴とするメッキ密着性評価方法。
2. A method for evaluating the adhesion of composite plating applied to the peripheral surface of a rotating body, wherein a strip-shaped test piece made of the same material as that of the rotating body is wound around the peripheral surface of the rotating body near the side end to form the test piece together with the rotating body. A plating adhesion evaluation method, which comprises performing composite adhesion and performing an adhesion test on a composite-plated test piece.
JP4348563A 1992-12-28 1992-12-28 Evaluating method of adhesion properties of plating Withdrawn JPH06201573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4348563A JPH06201573A (en) 1992-12-28 1992-12-28 Evaluating method of adhesion properties of plating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4348563A JPH06201573A (en) 1992-12-28 1992-12-28 Evaluating method of adhesion properties of plating

Publications (1)

Publication Number Publication Date
JPH06201573A true JPH06201573A (en) 1994-07-19

Family

ID=18397864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4348563A Withdrawn JPH06201573A (en) 1992-12-28 1992-12-28 Evaluating method of adhesion properties of plating

Country Status (1)

Country Link
JP (1) JPH06201573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001116746A (en) * 1999-07-28 2001-04-27 General Electric Co <Ge> Method for assessment of quality of coating treatment and assembly for it
US6478264B1 (en) 1999-12-14 2002-11-12 Sonoco Development, Inc. Peel test mandrel assembly and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001116746A (en) * 1999-07-28 2001-04-27 General Electric Co <Ge> Method for assessment of quality of coating treatment and assembly for it
US6478264B1 (en) 1999-12-14 2002-11-12 Sonoco Development, Inc. Peel test mandrel assembly and method

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