JPH0813116A - Surface treatment for metallic parts - Google Patents
Surface treatment for metallic partsInfo
- Publication number
- JPH0813116A JPH0813116A JP14787194A JP14787194A JPH0813116A JP H0813116 A JPH0813116 A JP H0813116A JP 14787194 A JP14787194 A JP 14787194A JP 14787194 A JP14787194 A JP 14787194A JP H0813116 A JPH0813116 A JP H0813116A
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- Prior art keywords
- powder
- welding
- alloy material
- surface treatment
- vol
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属部品の表面処理方
法、特に溶融アルミニウムめっき浴中金属部品の表面処
理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment method for metal parts, and more particularly to a surface treatment method for metal parts in a hot-dip aluminum plating bath.
【０００２】[0002]
【従来の技術】鋼板にアルミニウムめっきを施すには、
鋼板をスナウトから溶融アルミニウムめっき浴槽に投入
し、めっき浴中でガイドロールの周囲を搬送しつつ、ス
ナップロールによって浴槽から引き上げていた。ところ
で、ロール類及びロールのスリーブや軸受は、ステライ
トＮｏ．６、Ｎｏ．２１あるいはＳＵＳ３１６ＬやＳ５
５Ｃ（いずれもＪＩＳ規格）を素材としているが、アル
ミニウム浴中での耐腐食性や耐摩耗性に問題があり、実
質的に３〜７日程度の稼動が限界であった。アルミニウ
ムめっき浴には、アルミニウム５５ｖｏｌ％と亜鉛４５
ｖｏｌ％、アルミニウム９０ｖｏｌ％とシリコン１０ｖ
ｏｌ％、アルミニウム１００％の３種類があり、アルミ
ニウムの比が大きくなるほど耐用日数も短くなる。2. Description of the Related Art To plate a steel sheet with aluminum,
The steel plate was put into a molten aluminum plating bath from a snout, and while being transported around the guide roll in the plating bath, it was pulled up from the bath by a snap roll. By the way, rolls, roll sleeves and bearings are made of Stellite No. 6, No. 21 or SUS316L or S5
Although 5C (all JIS standards) is used as a material, there is a problem in corrosion resistance and wear resistance in an aluminum bath, and the operation for about 3 to 7 days is practically limited. The aluminum plating bath contains 55 vol% aluminum and 45 zinc.
vol%, aluminum 90 vol% and silicon 10v
There are three types, ol% and 100% aluminum, and the longer the ratio of aluminum, the shorter the service life.
【０００３】[0003]
【発明の目的、構成、作用、効果】そこで、本発明の目
的は、アルミニウムめっき浴中での耐腐食性、耐摩耗性
に優れた金属部品の表面処理方法を提供することにあ
る。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a surface treatment method for metal parts having excellent corrosion resistance and wear resistance in an aluminum plating bath.
【０００４】以上の目的を達成するため、本発明に係る
金属部品の表面処理方法は、金属部品の表面に金属粉末
をプラズマ粉体溶接にて肉盛りし、ライニング層を形成
する。肉盛りする金属は、Ｃｏ−Ｃｒ−Ｆｅ合金材料か
らなる粉末、この合金材料にＷ2Ｃ又はＣｒ3Ｃ2を加え
た粉末、あるいはステライト合金材料にＷ2Ｃを加えた
粉末である。In order to achieve the above object, the surface treatment method for metal parts according to the present invention forms a lining layer by depositing metal powder on the surface of the metal part by plasma powder welding. The metal to be built up is a powder made of a Co—Cr—Fe alloy material, a powder obtained by adding W 2 C or Cr 3 C 2 to this alloy material, or a powder obtained by adding W 2 C to a stellite alloy material.
【０００５】以上の表面処理を施した金属部品は、アル
ミニウムめっき浴中での耐腐食性、耐摩耗性が良好であ
り、従来品の約４倍を超える稼動実績を示した。The metal parts which have been subjected to the above surface treatment have good corrosion resistance and wear resistance in an aluminum plating bath, and have shown an operating record of about four times that of conventional products.
【０００６】[0006]
【実施例】以下、本発明に係る金属部品の表面処理方法
の実施例について添付図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the surface treatment method for metal parts according to the present invention will be described below with reference to the accompanying drawings.
【０００７】図１はスリーブ１、図２はその軸受２を示
し、これらは連続アルミニウムめっき装置のめっき浴中
に配置されるロール類のスリーブ及び軸受として使用さ
れる。FIG. 1 shows a sleeve 1 and FIG. 2 shows a bearing 2 thereof, which are used as sleeves and bearings for rolls arranged in a plating bath of a continuous aluminum plating apparatus.
【０００８】スリーブ１及び軸受２はＳＵＳ３１６Ｌを
母材としてその表面にプラズマ粉体溶接で以下に説明す
る金属粉末を肉盛りし、ライニング層１ａ，２ａを形成
した。具体的には、スリーブ１は外径１６０ｍｍ、軸受
２は内径が１６２ｍｍであり、ライニング層１ａ，２ａ
の厚さはそれぞれ３ｍｍである。溶接した金属粉末は、
第１例がＣｏ−Ｃｒ−Ｆｅ合金材料である。組成は、Ｃ
ｏ５０ｖｏｌ％、Ｃｒ３０ｖｏｌ％、Ｆｅ２０ｖｏｌ％
であり、これらをアトマイズ法によって＃１００〜２５
０の球状粉末とした。第２例は前記組成のＣｏ−Ｃｒ−
Ｆｅ合金材料５０ｖｏｌ％に５０ｖｏｌ％のＣｒ3Ｃ2を
加えて球状粉末としたものである。なお、Ｃｒ3Ｃ2は約
３０〜６０ｖｏｌ％の範囲で加えることができる。第３
例は６０ｖｏｌ％のステライトＮｏ．２１に４０ｖｏｌ
％のＷ2Ｃを加えて球状粉末としたものである。なお、
Ｗ2Ｃは約３０〜６０ｖｏｌ％の範囲で加えることがで
きる。第４例は前記組成のＣｏ−Ｃｒ−Ｆｅ合金材料６
０ｖｏｌ％に４０ｖｏｌ％のＷ2Ｃを加えて球状粉末と
したものである。なお、Ｗ2Ｃは約３０〜６０ｖｏｌ％
の範囲で加えることができる。The sleeve 1 and the bearing 2 are made of SUS316L as a base material, and the surface thereof is covered with a metal powder described below by plasma powder welding to form lining layers 1a and 2a. Specifically, the sleeve 1 has an outer diameter of 160 mm, the bearing 2 has an inner diameter of 162 mm, and the lining layers 1a and 2a
The thickness of each is 3 mm. The welded metal powder is
The first example is a Co-Cr-Fe alloy material. The composition is C
o50vol%, Cr30vol%, Fe20vol%
And these are # 100-25 according to the atomization method.
It was a spherical powder of 0. The second example is Co—Cr— having the above composition.
A spherical powder is obtained by adding 50 vol% Cr 3 C 2 to 50 vol% Fe alloy material. Incidentally, Cr 3 C 2 may be added in the range of about 30~60vol%. Third
An example is 60 vol% Stellite No. 21 to 40 vol
% W 2 C was added to obtain a spherical powder. In addition,
W 2 C may be added in the range of about 30~60vol%. The fourth example is a Co—Cr—Fe alloy material 6 having the above composition.
A spherical powder was obtained by adding 40 vol% W 2 C to 0 vol%. In addition, W 2 C is about 30 to 60 vol%
Can be added in the range of.
【０００９】ここで、プラズマ粉体溶接法について説明
する。プラズマ粉体溶接法は、図３に示すように、溶接
トーチ１０の中心孔１１にタングステン電極１２を設
け、中心孔１１にアルゴンガスを供給してガスプラズマ
を発生させる。溶接トーチ１０の先端からはパイロット
アークＰａ及びメインアークＭａが噴出する。同時に、
溶接トーチ１０の粉末供給孔１３から金属粉末を提供す
る。この粉末はメインアークＭａによって溶融し、母材
１５の表面に溶着し、肉盛層１５ａになる。また、溶接
トーチ１０のガス供給孔１４からはシールドガス（通
常、アルゴンガス）が供給される。Here, the plasma powder welding method will be described. In the plasma powder welding method, as shown in FIG. 3, a tungsten electrode 12 is provided in the center hole 11 of the welding torch 10, and argon gas is supplied to the center hole 11 to generate gas plasma. Pilot arc Pa and main arc Ma are ejected from the tip of welding torch 10. at the same time,
Metal powder is provided from the powder supply hole 13 of the welding torch 10. This powder is melted by the main arc Ma and welded to the surface of the base material 15 to form the buildup layer 15a. A shield gas (usually argon gas) is supplied from the gas supply hole 14 of the welding torch 10.
【００１０】このようなプラズマ粉体溶接法は他の溶接
法（被覆アーク溶接、ティグ溶接、ミグ溶接、サブマー
ジ溶接、ガス溶接）と比較して、以下の特徴を有してい
る。 （１）母材への溶け込み深さが小さく、希釈率は通常５
％以下である。従って、１層で目標の化学成分の肉盛金
属が得られる。 （２）肉盛材料として粉末を用いるため、材料をワイヤ
やロッドに形成する必要がなく、一般金属の他各種炭化
物を主成分とする超硬複合合金の肉盛も容易に行うこと
ができ、炭化物含有量の調整も自由である。Such plasma powder welding method has the following features as compared with other welding methods (covered arc welding, TIG welding, MIG welding, submerged welding, gas welding). (1) The penetration depth into the base metal is small, and the dilution rate is usually 5
% Or less. Therefore, the build-up metal having the target chemical composition can be obtained in one layer. (2) Since powder is used as the build-up material, it is not necessary to form the material into a wire or rod, and it is possible to easily build up a cemented carbide composite alloy whose main component is various carbides in addition to general metals. The carbide content can also be adjusted freely.
【００１１】（３）アルゴンガス中での自動溶接である
ため、ブローホール等の欠陥が少ない。 （４）溶融溶接であるため、母材との結合は冶金結合で
あり、剥離等の問題はない。(3) Since automatic welding is performed in argon gas, there are few defects such as blowholes. (4) Since it is fusion welding, the bond with the base material is metallurgical bond, and there is no problem such as peeling.
【００１２】次に、前記第１例〜第４例のアルミニウム
めっき浴中への浸漬試験結果を示す。図４は５８０℃の
Ａｌ５５ｖｏｌ％−Ｚｎ４５ｖｏｌ％めっき浴中へ７日
間浸漬したときの体積減を示し、図５は同条件での板厚
減を示す。ステライトＮｏ．１及びＮｏ．６は従来例で
あり、比較のために示す。図６は６５０℃のＡｌ９０ｖ
ｏｌ％−Ｓｉ１０ｖｏｌ％めっき浴中へ７日間浸漬した
ときの体積減を示し、図７は同条件での板厚減を示す。
ステライトＮｏ．６及びＮｏ．２１、ＳＵＳ３１６Ｌは
従来例であり、比較のために示す。Next, the results of immersion tests in the aluminum plating baths of the first to fourth examples will be shown. FIG. 4 shows the volume reduction when immersed in an Al 55 vol% -Zn 45 vol% plating bath at 580 ° C. for 7 days, and FIG. 5 shows the plate thickness reduction under the same conditions. Stellite No. 1 and No. 6 is a conventional example and is shown for comparison. Figure 6 shows 650 ℃ Al90v
The volume reduction when immersed in an ol% -Si10vol% plating bath for 7 days is shown, and FIG. 7 shows the plate thickness reduction under the same conditions.
Stellite No. 6 and No. 21 and SUS316L are conventional examples and are shown for comparison.
【００１３】次に、アブレシブ摩耗性について説明す
る。アブレシブ摩耗性は、図８に示すように、回転台１
０の上面にエメリーペーパー１１を貼り付けたピンオン
デスク摩耗試験機によって行った。試験条件を第１表に
示す。Next, the abrasive wear will be described. As shown in FIG. 8, the abrasive wear of the rotary table 1
It was performed by a pin-on-desk abrasion tester in which an emery paper 11 was attached to the upper surface of No. 0. The test conditions are shown in Table 1.
【００１４】[0014]
【表１】 [Table 1]
【００１５】アブレシブ摩耗試験結果は図９に示すとお
りであり、曲線Ａは従来例であるステライトＮｏ．６の
摩耗量を示し、曲線ＢはＣｏ−Ｃｒ−Ｆｅ合金材料５０
ｖｏｌ％に５０ｖｏｌ％のＷ2Ｃを加えた球状粉末をプ
ラズマ粉体溶接して得た試験片の摩耗量を示す。曲線Ｂ
で示した試験片の耐摩耗性は超硬合金に匹敵する優れた
特性である。The results of the abrasive wear test are shown in FIG. 9, and the curve A indicates the conventional example of Stellite No. 6 shows the wear amount, and the curve B shows the Co—Cr—Fe alloy material 50.
The wear amount of the test piece obtained by plasma powder welding a spherical powder obtained by adding 50 vol% W 2 C to vol% is shown. Curve B
The wear resistance of the test piece shown in 1 is an excellent property comparable to that of cemented carbide.
【００１６】次に、摺動摩耗性について説明する。摺動
摩耗性はリングオンデスク摩耗試験方法によって行っ
た。この試験方法は、図１０に示すように、デスク２１
上にリング２２を載置し、一定の圧力の下でデスク２２
を回転させる。耐摩耗性は、試験後の外観（表面粗
さ）、摺動トルク（摩耗係数）、摩耗量（重量減、板厚
減）を評価した。試験条件を第２表に示す。Next, sliding wear will be described. The sliding wear resistance was measured by the ring-on-desk wear test method. As shown in FIG. 10, this test method uses a desk 21
Place the ring 22 on top of the desk 22 under constant pressure.
To rotate. The wear resistance was evaluated by the appearance (surface roughness), sliding torque (wear coefficient), and wear amount (weight reduction, plate thickness reduction) after the test. Table 2 shows the test conditions.
【００１７】[0017]
【表２】 [Table 2]
【００１８】リングとデスクの試験材料は、第３表に示
すように、ＳＵＳ３１６Ｌ、ステライトＮｏ．６、本発
明例とし、それらを第３表に示すＮｏ．１〜Ｎｏ．５の
態様で組み合わせ、試験を行った。The test materials for the ring and desk were SUS316L, Stellite No. 3, as shown in Table 3. No. 6, shown in Table 3, as examples of the present invention. 1 to No. Tests were carried out by combining in 5 modes.
【００１９】[0019]
【表３】 [Table 3]
【００２０】前記リングオンデスク摩耗試験による摺動
トルクと摩擦係数を第４表に示し、摩耗量を第５表に示
す。本発明例の組み合わせは、摺動トルク（摩擦係数）
が小さく、摩耗が殆んど認められず、優れた摺動特性を
示した。また、表面粗さも目視によって殆んど変化は認
められなかった。しかし、他の組み合わせでは、表面が
粗く変化しているのが目視され、かつ、摺動トルク、摩
耗量も大きい。Table 4 shows the sliding torque and coefficient of friction in the ring-on-desk wear test, and Table 5 shows the amount of wear. The combination of the examples of the present invention is the sliding torque (friction coefficient).
Was small, almost no wear was observed, and excellent sliding characteristics were exhibited. In addition, the surface roughness was hardly changed by visual observation. However, in other combinations, the surface was observed to change roughly, and the sliding torque and wear amount were large.
【００２１】[0021]
【表４】 [Table 4]
【００２２】[0022]
【表５】 [Table 5]
【００２３】なお、本発明に係る金属部品の表面処理方
法は前記実施例に限定するものではなく、その要旨の範
囲内で種々に変更可能である。The surface treatment method for metal parts according to the present invention is not limited to the above embodiment, but can be variously modified within the scope of the invention.
【００２４】特に、プラズマ粉体溶接の材料であるＣｏ
−Ｃｒ−Ｆｅ合金材料は、Ｃｏ：５０ｖｏｌ％−Ｃｒ：
３０ｖｏｌ％−Ｆｅ：２０ｖｏｌ％の組成以外に種々の
組成のものを使用することができる。In particular, Co which is a material for plasma powder welding
-Cr-Fe alloy material is Co: 50vol% -Cr:
Various compositions other than the composition of 30 vol% -Fe: 20 vol% can be used.
【００２５】また、本発明によって得られた製品はアル
ミニウムめっき浴中のみでなく、耐腐食性、耐摩耗性を
要求される部品として広く使用することができる。The product obtained by the present invention can be widely used not only in an aluminum plating bath but also as a part requiring corrosion resistance and wear resistance.
【図１】本発明によってライニング層を形成されたスリ
ーブの断面図。FIG. 1 is a cross-sectional view of a sleeve having a lining layer formed according to the present invention.
【図２】本発明によってライニング層を形成された軸受
の斜視図。FIG. 2 is a perspective view of a bearing having a lining layer formed according to the present invention.
【図３】プラズマ粉体溶接の説明図。FIG. 3 is an explanatory view of plasma powder welding.
【図４】アルミニウムめっき浴中への浸漬試験結果を示
すグラフ、体積減を示す。FIG. 4 is a graph showing the results of immersion test in an aluminum plating bath, showing the volume reduction.
【図５】アルミニウムめっき浴中への図４と同じ条件で
の浸漬試験結果を示すグラフ、板厚減を示す。FIG. 5 is a graph showing the results of the immersion test in an aluminum plating bath under the same conditions as in FIG. 4, and the reduction in plate thickness.
【図６】アルミニウムめっき浴中への他の条件での浸漬
試験結果を示すグラフ、体積減を示す。FIG. 6 is a graph showing the results of the immersion test in an aluminum plating bath under other conditions, showing the volume reduction.
【図７】アルミニウムめっき浴中への図６と同じ条件で
の浸漬試験結果を示すグラフ、板厚減を示す。FIG. 7 is a graph showing the results of the immersion test in an aluminum plating bath under the same conditions as in FIG. 6, showing the reduction in plate thickness.
【図８】アブレシブ摩耗試験の説明図。FIG. 8 is an explanatory diagram of an abrasive wear test.
【図９】アブレシブ摩耗試験結果を示すグラフ。FIG. 9 is a graph showing the results of an abrasive wear test.
【図１０】摺動摩耗試験の説明図。FIG. 10 is an explanatory diagram of a sliding wear test.
１…スリーブ １ａ…ライニング層 ２…軸受 ２ａ…ライニング層 DESCRIPTION OF SYMBOLS 1 ... Sleeve 1a ... Lining layer 2 ... Bearing 2a ... Lining layer
Claims (4)
金材料からなる粉末をプラズマ粉体溶接にて肉盛りし、
ライニング層を形成することを特徴とする金属部品の表
面処理方法。1. A surface of a metal part is coated with a powder of a Co—Cr—Fe alloy material by plasma powder welding,
A surface treatment method for a metal component, which comprises forming a lining layer.
金材料にＷ2Ｃを加えた粉末をプラズマ粉体溶接にて肉
盛りし、ライニング層を形成することを特徴とする金属
部品の表面処理方法。2. A lining layer is formed on a surface of a metal part by laminating a powder obtained by adding W 2 C to a Co—Cr—Fe alloy material by plasma powder welding to form a lining layer. Surface treatment method.
金材料にＣｒ3Ｃ2を加えた粉末をプラズマ粉体溶接にて
肉盛りし、ライニング層を形成することを特徴とする金
属部品の表面処理方法。3. A metal part, characterized in that a powder obtained by adding Cr 3 C 2 to a Co—Cr—Fe alloy material is built up by plasma powder welding on the surface of the metal part to form a lining layer. Surface treatment method.
にＷ2Ｃを加えた粉末をプラズマ粉体溶接にて肉盛り
し、ライニング層を形成することを特徴とする金属部品
の表面処理方法。4. A surface treatment method for a metal part, comprising forming a lining layer on the surface of the metal part by depositing a powder obtained by adding W 2 C to a stellite alloy material by plasma powder welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14787194A JP3291128B2 (en) | 1994-06-29 | 1994-06-29 | Surface treatment method for metal parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14787194A JP3291128B2 (en) | 1994-06-29 | 1994-06-29 | Surface treatment method for metal parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0813116A true JPH0813116A (en) | 1996-01-16 |
| JP3291128B2 JP3291128B2 (en) | 2002-06-10 |
Family
ID=15440127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14787194A Expired - Lifetime JP3291128B2 (en) | 1994-06-29 | 1994-06-29 | Surface treatment method for metal parts |
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| Country | Link |
|---|---|
| JP (1) | JP3291128B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159216A (en) * | 2004-12-03 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Material for powder plasma arc welding, and wear resistive member at high temperature |
| JP2008179865A (en) * | 2007-01-25 | 2008-08-07 | Daido Castings:Kk | Method for manufacturing highly corrosion-resistant boiler padded pipe for waste incinerator and powdery padding material used in the method |
| WO2011074131A1 (en) | 2009-12-16 | 2011-06-23 | 住友金属工業株式会社 | Member for conveying high-temperature materials |
| JP2017101273A (en) * | 2015-11-30 | 2017-06-08 | Ｊｆｅスチール株式会社 | Toll shaft member in melting metal plating bath and its production method, and production method of melting metal plating steel plate |
| EP3342529A1 (en) * | 2016-12-28 | 2018-07-04 | General Electric Company | Material, article, and method for forming article with tungsten semicarbide |
-
1994
- 1994-06-29 JP JP14787194A patent/JP3291128B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159216A (en) * | 2004-12-03 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Material for powder plasma arc welding, and wear resistive member at high temperature |
| JP4551201B2 (en) * | 2004-12-03 | 2010-09-22 | 三菱重工業株式会社 | Powder plasma welding material and high temperature wear resistant member |
| JP2008179865A (en) * | 2007-01-25 | 2008-08-07 | Daido Castings:Kk | Method for manufacturing highly corrosion-resistant boiler padded pipe for waste incinerator and powdery padding material used in the method |
| WO2011074131A1 (en) | 2009-12-16 | 2011-06-23 | 住友金属工業株式会社 | Member for conveying high-temperature materials |
| JP2017101273A (en) * | 2015-11-30 | 2017-06-08 | Ｊｆｅスチール株式会社 | Toll shaft member in melting metal plating bath and its production method, and production method of melting metal plating steel plate |
| EP3342529A1 (en) * | 2016-12-28 | 2018-07-04 | General Electric Company | Material, article, and method for forming article with tungsten semicarbide |
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| Publication number | Publication date |
|---|---|
| JP3291128B2 (en) | 2002-06-10 |
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