JPH0649573A - High hardness roll material - Google Patents

High hardness roll material

Info

Publication number
JPH0649573A
JPH0649573A JP40946190A JP40946190A JPH0649573A JP H0649573 A JPH0649573 A JP H0649573A JP 40946190 A JP40946190 A JP 40946190A JP 40946190 A JP40946190 A JP 40946190A JP H0649573 A JPH0649573 A JP H0649573A
Authority
JP
Japan
Prior art keywords
roll material
alloy
hardness
roll
high hardness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP40946190A
Other languages
Japanese (ja)
Inventor
Hiroshi Omori
浩志 大森
Yohachi Nishikawa
洋八 西川
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP40946190A priority Critical patent/JPH0649573A/en
Publication of JPH0649573A publication Critical patent/JPH0649573A/en
Pending legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To impart excellent hardness to a roll material as well as corrosion resistance by adding B and Al to an Ni-Cr alloy increased in the content of Cr. CONSTITUTION:The Ni-Cr alloy having, by weight, 30 to 60% Cr content is added with B and Al as third components. B is added usually in the ratio of 10%, preferably, <=5%, and Al is added usually in the ratio of <=5%, preferably, about <=3%. B and Al are elemental components essential for improving the hardness of the roll material, and they greatly contribute the hardness to the grain boundaries of the alloy. This alloy roll material may be furthermore added with one or more kinds among Mo, Nb, Sn, Ta and Fe according to necessary. In this way, the wear resistant roll material having excellent hardness can be obtd.

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、高硬度ロール材に関
するものである。さらに詳しくは、この発明は、Pb,
Zn,Ni等の金属メッキ処理用のコンダクターロール
等に有用な、耐摩耗性に優れた高硬度ロール材に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high hardness roll material. More specifically, the present invention relates to Pb,
The present invention relates to a high hardness roll material having excellent wear resistance, which is useful as a conductor roll for metal plating of Zn, Ni or the like.

【0002】[0002]

【従来の技術とその課題】従来より、自動車用鋼板、構
造用材、その他の広範囲な用途に、Pb,Zn,Ni等
の金属の電気メッキ、あるいは溶融メッキを施したもの
が広く使用されてきている。これらのメッキ処理の工程
においては、電気化学反応処理のために、合金製のコン
ダクターロールが使用されてきており、通常、このよう
なコンダクターロールとしては、メッキ鋼板の表面を平
滑に処理し、しかもロールの摩耗を抑えるためにインコ
ネル等の合金が使用されてきている。
2. Description of the Related Art Conventionally, electroplated or hot-dipped metal such as Pb, Zn, Ni has been widely used for a wide range of applications such as steel plates for automobiles, structural materials and the like. There is. In these plating processes, conductor rolls made of an alloy have been used for electrochemical reaction treatment, and normally, as such a conductor roll, the surface of a plated steel sheet is smoothed, and Alloys such as Inconel have been used to reduce roll wear.

【0003】しかしながら、このような従来のロール材
の場合には、メッキ処理時の鋼板表面の平滑性が満足で
きるほどには得られず、またロール材の摩耗、そして腐
食が大きいという欠点があった。このため、従来のロー
ル材においては、そのライフサイクルが短く、メッキ処
理コストの低減化の制約要因となっていた。
However, in the case of such a conventional roll material, there is a drawback that the smoothness of the surface of the steel sheet at the time of plating is not sufficiently obtained, and the roll material is largely worn and corroded. It was For this reason, the conventional roll material has a short life cycle, which has been a limiting factor for reducing the plating cost.

【0004】この発明は、以上の通りの事情に鑑みてな
されたものであり、従来のロール材の欠点を改善し、平
滑な鋼板表面を得ることができ、しかもロール材の耐摩
耗性、さらには耐食性にも優れた、メッキ用コンダクタ
ーロール等として有用な高硬度ロール材を提供すること
を目的としている。
The present invention has been made in view of the circumstances as described above, and it is possible to improve the drawbacks of the conventional roll material and obtain a smooth steel plate surface, and further, the wear resistance of the roll material, Aims to provide a high hardness roll material having excellent corrosion resistance and useful as a conductor roll for plating.

【0005】[0005]

【課題を解決するための手段】この発明は、上記の課題
を解決するものとして、30〜60重量%のCrを含有
するNi−Cr合金にBおよび/またはAlを添加して
なることを特徴とする高硬度ロール材を提供する。ま
た、この発明は、さらに上記組成の合金にMo,Nb,
Sn,TaおよびFeの1種以上を添加した高硬度ロー
ル材をも提供し、これらのロール材のための合金粉末
と、その粉末焼結によるロール材を好ましい態様として
提供するものでもある。
In order to solve the above problems, the present invention is characterized by adding B and / or Al to a Ni-Cr alloy containing 30 to 60% by weight of Cr. And a high hardness roll material. In addition, the present invention further includes an alloy having the above composition with Mo, Nb,
It also provides a high hardness roll material to which one or more of Sn, Ta and Fe are added, and an alloy powder for these roll materials and a roll material obtained by powder sintering thereof are also provided as preferred embodiments.

【0006】この発明においては、ロール材としての高
硬度品を提供するために、そのための合金としてNi−
Crからなることを基本とするが、この場合のCr含有
率は30〜60%としている。Cr含有率が30%未満
の場合には、ロール材の耐食性が劣り、腐食によってロ
ール材表面に損傷が生じ、メッキ鋼板に凹凸や損傷がも
たらされる。ロールのライフサイクルの向上が難しくな
る。一方、Cr含有量が60%を超える場合には、所要
の硬度が得られず、摩耗によってメッキ処理鋼板に凹凸
を与え、平滑性の付与が難しくなるばかりか、ロールと
してのライフサイクルが短くなり、生産コストの低減化
を困難とする。
In the present invention, in order to provide a high hardness product as a roll material, Ni--
Although it is basically composed of Cr, the Cr content in this case is set to 30 to 60%. If the Cr content is less than 30%, the corrosion resistance of the roll material is poor, and the surface of the roll material is damaged by corrosion, resulting in unevenness and damage to the plated steel sheet. It becomes difficult to improve the life cycle of the roll. On the other hand, if the Cr content exceeds 60%, the required hardness cannot be obtained, and the plated steel sheet becomes uneven due to wear, making it difficult to impart smoothness and shortening the life cycle of the roll. , Making it difficult to reduce production costs.

【0007】このため、この発明のロール材において
は、Cr含有量を30〜60重量%とする。また、この
Ni,Cr以外に、この発明においては、第3添加成分
としてBおよび/またはAlを添加することを特徴とし
てもいる。このB,Alは、ロール材の硬度向上のため
に必須の元素成分であり、合金の結晶粒界において強度
向上に大きく作用する。
Therefore, in the roll material of the present invention, the Cr content is set to 30 to 60% by weight. In addition to Ni and Cr, the present invention is characterized by adding B and / or Al as a third additive component. These B and Al are essential elemental components for improving the hardness of the roll material, and have a great effect on improving the strength at the crystal grain boundaries of the alloy.

【0008】Bとしては、通常は、10重量%以下、よ
り好ましくは5%以下の割合で添加し、また、Alにつ
いても、通常は5%以下、より好ましくは3%以下程度
の割合で添加する。いずれのものも、BとAlとの合計
量は15%以下とするのが好ましい。それを超える場合
には、靭性が低下するので好ましくない。また、さらに
この発明のロール材においては、Mo,Nb,Sn,T
a,Feの1種以上のものを添加するが、これらと上記
B,Alとの合計量も15重量%以下とするのが一般的
に好ましい。これら第4成分も硬度向上および耐食性向
上にとって重要である。
B is usually added in a proportion of 10% by weight or less, more preferably 5% or less, and Al is also added in a proportion of usually 5% or less, more preferably 3% or less. To do. In all cases, the total amount of B and Al is preferably 15% or less. If it exceeds this value, the toughness decreases, which is not preferable. Further, in the roll material of the present invention, Mo, Nb, Sn, T
At least one of a and Fe is added, but it is generally preferable that the total amount of these and B and Al is 15% by weight or less. These fourth components are also important for improving hardness and corrosion resistance.

【0009】ロール材としての以上の合金は、合金成分
を溶解し、ガスアトマイズ法、遠心噴霧法等によって粉
末とし、これをホットプレス、HIP等の手段によって
焼結して成形することが好ましい。粉末焼結によって、
優れた硬度、そして耐食性の良好なロール材が実現され
る。このロール材は、メッキ処理工程におけるコンダク
ターロール等として極めて有用なものである。
The above alloy as a roll material is preferably formed by melting the alloy components and forming a powder by a gas atomizing method, a centrifugal atomizing method or the like, and sintering the powder by means such as hot pressing or HIP. By powder sintering,
A roll material having excellent hardness and good corrosion resistance is realized. This roll material is extremely useful as a conductor roll or the like in the plating process.

【0010】以下、実施例を示し、さらに詳しくこの発
明の高硬度ロール材について説明する。
Examples will be shown below to describe the high hardness roll material of the present invention in more detail.

【0011】[0011]

【実施例】表1に示した通りのこの発明のロール材合金
と、比較合金とを、各々噴霧法によって粉末成形し、3
2下の分級品によってHIP法によって所定のロール材
に成形した。この時のHIP条件としては、実施例1〜
3の場合には1050℃×1200気圧×2時間とし、それ以外
の場合には、1200℃×1200気圧×2時間とした。
EXAMPLE A roll material alloy of the present invention as shown in Table 1 and a comparative alloy were powder-molded by a spraying method, respectively, and 3
The classified product under 2 was formed into a predetermined roll material by the HIP method. The HIP conditions at this time are as follows:
In the case of 3, it was 1050 ° C. × 1200 atm × 2 hours, and in other cases, it was 1200 ° C. × 1200 atm × 2 hours.

【0012】得られたロール成形品について、HIP後
と、さらにエージング(AG)(800℃×5時間AC)
後にその硬度(HB)を評価した。また、以下の条件下
におけるパルス通電腐食減量(g/m2 )を評価した。 ・Znメッキ模擬液 Fe(SO4 3 ・xH2 O 75g/l H2 SO4 22g/l H2 O 残部 ・電流密度 260A/dm2 ・パルス 0.2秒ON−0.5秒OFF ・時 間 8時間 ・温 度 50℃ その結果を示したものが表2である。
The roll-formed product obtained was subjected to HIP and then aging (AG) (800 ° C. × 5 hours AC).
The hardness (HB) was evaluated later. Further, the pulse current corrosion weight loss (g / m 2 ) was evaluated under the following conditions.・ Zn plating simulation liquid Fe (SO 4 ) 3・ xH 2 O 75 g / l H 2 SO 4 22 g / l H 2 O balance ・ Current density 260 A / dm 2・ Pulse 0.2 seconds ON-0.5 seconds OFF ・ Time 8 hours・ Temperature: 50 ℃ Table 2 shows the results.

【0013】この表2の結果から明らかなように、この
発明のロール材においては、耐食性とともに、その硬度
が優れ、耐摩耗性が良好であることがわかる。もちろ
ん、この発明のロール材は、これらの実施例に限定され
るものではない。様々な態様がさらに可能である。
As is clear from the results shown in Table 2, the roll material of the present invention is excellent in corrosion resistance, hardness, and wear resistance. Of course, the roll material of the present invention is not limited to these examples. Various aspects are also possible.

【0014】[0014]

【表1】 [Table 1]

【0015】[0015]

【表2】 [Table 2]

【0016】[0016]

【発明の効果】この発明により、以上詳しく説明したよ
うに、耐食性とともにその硬度に優れた耐摩耗性ロール
材が実現される。メッキ用コンダクターロール等のロー
ル材として有用であって、そのライフサイクルは延長さ
れ、生産コスト低減に大きく寄与する。
As described in detail above, according to the present invention, a wear resistant roll material having excellent corrosion resistance and hardness can be realized. It is useful as a roll material such as a conductor roll for plating and has a long life cycle, which greatly contributes to the reduction of production cost.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 30〜60重量%のCrを含有するNi
−Cr合金にBおよび/またはAlを添加してなること
を特徴とする高硬度ロール材。
1. Ni containing 30-60 wt% Cr.
A high hardness roll material, which is obtained by adding B and / or Al to a Cr alloy.
【請求項2】 請求項1の合金に、さらにMo,Nb,
Sn,TaおよびFeの1種以上を添加してなることを
特徴とする高硬度ロール材。
2. The alloy of claim 1 further comprising Mo, Nb,
A high hardness roll material comprising one or more of Sn, Ta and Fe added.
【請求項3】 粉末焼結してなる請求項1または2の高
硬度ロール材。
3. The high hardness roll material according to claim 1, which is formed by powder sintering.
【請求項4】 請求項1または2の合金からなる焼結用
ロール材粉末。
4. A roll material powder for sintering, comprising the alloy according to claim 1 or 2.
JP40946190A 1990-12-28 1990-12-28 High hardness roll material Pending JPH0649573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP40946190A JPH0649573A (en) 1990-12-28 1990-12-28 High hardness roll material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP40946190A JPH0649573A (en) 1990-12-28 1990-12-28 High hardness roll material

Publications (1)

Publication Number Publication Date
JPH0649573A true JPH0649573A (en) 1994-02-22

Family

ID=18518797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP40946190A Pending JPH0649573A (en) 1990-12-28 1990-12-28 High hardness roll material

Country Status (1)

Country Link
JP (1) JPH0649573A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011162803A (en) * 2010-02-04 2011-08-25 Daido Steel Co Ltd Powder alloy for build-up thermal spraying having excellent wear resistance and high temperature corrosion resistance
WO2019189531A1 (en) * 2018-03-28 2019-10-03 日立金属株式会社 Cr-Ni BASED ALLOY, RAPIDLY SOLIDIFIED MOLDED BODY MADE OF Cr-Ni BASED ALLOY, ALLOY POWDER, POWDER METALLURGY MOLDED BODY, CAST MOLDED BODY, PRODUCTION METHOD FOR Cr-Ni BASED ALLOY AND MECHANICAL EQUIPMENT USING Cr-Ni BASED ALLOY, AND PIPING MEMBER
WO2019189532A1 (en) * 2018-03-28 2019-10-03 日立金属株式会社 Wear-resistant component
WO2020196879A1 (en) * 2019-03-27 2020-10-01 日立金属株式会社 Alloy composition, method for producing alloy composition, and die

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011162803A (en) * 2010-02-04 2011-08-25 Daido Steel Co Ltd Powder alloy for build-up thermal spraying having excellent wear resistance and high temperature corrosion resistance
WO2019189531A1 (en) * 2018-03-28 2019-10-03 日立金属株式会社 Cr-Ni BASED ALLOY, RAPIDLY SOLIDIFIED MOLDED BODY MADE OF Cr-Ni BASED ALLOY, ALLOY POWDER, POWDER METALLURGY MOLDED BODY, CAST MOLDED BODY, PRODUCTION METHOD FOR Cr-Ni BASED ALLOY AND MECHANICAL EQUIPMENT USING Cr-Ni BASED ALLOY, AND PIPING MEMBER
WO2019189532A1 (en) * 2018-03-28 2019-10-03 日立金属株式会社 Wear-resistant component
JPWO2019189532A1 (en) * 2018-03-28 2021-04-08 日立金属株式会社 Abrasion resistant parts
JPWO2019189531A1 (en) * 2018-03-28 2021-04-08 日立金属株式会社 Cr-Ni-based alloys, quench-solidified molded bodies made of Cr-Ni-based alloys, alloy powders, powder metallurgy molded bodies, cast molded bodies, methods for manufacturing Cr-Ni-based alloys, and machinery and equipment using Cr-Ni-based alloys. Piping member
WO2020196879A1 (en) * 2019-03-27 2020-10-01 日立金属株式会社 Alloy composition, method for producing alloy composition, and die
JPWO2020196879A1 (en) * 2019-03-27 2021-09-13 日立金属株式会社 Alloy composition, method of manufacturing alloy composition, and mold
US11932921B2 (en) 2019-03-27 2024-03-19 Hitachi Metals, Ltd. Alloy composition, method for producing alloy composition, and die

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