JPH1134190A - Corrugating roll for corrugating machine - Google Patents
Corrugating roll for corrugating machineInfo
- Publication number
- JPH1134190A JPH1134190A JP18802097A JP18802097A JPH1134190A JP H1134190 A JPH1134190 A JP H1134190A JP 18802097 A JP18802097 A JP 18802097A JP 18802097 A JP18802097 A JP 18802097A JP H1134190 A JPH1134190 A JP H1134190A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- roll
- spray coating
- corrugating
- sprayed
- 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
Links
- 239000010410 layer Substances 0.000 claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- 229910009043 WC-Co Inorganic materials 0.000 abstract description 7
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 6
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 4
- 239000011247 coating layer Substances 0.000 abstract 5
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 10
- 238000007747 plating Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Landscapes
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は紙との摩擦係数が低
く、かつ耐摩耗性を要求されるコルゲートマシン用の段
ロールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step roll for a corrugating machine which has a low coefficient of friction with paper and is required to have abrasion resistance.
【０００２】[0002]
【従来の技術】段ボールを製造するコルゲートマシン用
段ロールとしては、従来大別して（Ａ）ＳＣＭ４４０な
どの低合金鋼に高周波表面焼入し、Ｃｒメッキしたもの
（Ｂ）ＷＣ−Ｃｏなどの耐摩耗性材料を溶射したものが
あり、さらに（Ｃ）ＷＣ−Ｃｏなどの耐摩耗性溶射皮膜
表面に、Ｎｉメッキ皮膜を形成したもの（特開平６−６
５７０５号公報）もみられる。2. Description of the Related Art Conventionally, corrugated rolls for corrugating machines are roughly classified into (A) low-alloy steel such as SCM440, which is subjected to high-frequency surface quenching and Cr plating, and (B) abrasion resistance such as WC-Co. (A), a Ni-plated film is formed on the surface of a wear-resistant thermally sprayed film such as WC-Co (Japanese Patent Laid-Open No. 6-6).
No. 5705).
【０００３】[0003]
【発明が解決しようとする課題】従来の、（Ａ）低合金
鋼を高周波表面焼入し、Ｃｒメッキした段ロールにおい
ては、使用中に紙との接触によってＣｒメッキが摩耗し
易く、耐用年数が短い問題があり、同じく従来の（Ｂ）
ＷＣ−Ｃｏなどの耐摩耗性材料を溶射した段ロールにお
いては、（Ａ）のＣｒメッキ品に比較して耐用年数の増
加は期待できるが、硬質体を含む耐摩耗層であるがゆえ
に、平滑な表面に仕上げることが困難で紙との摩擦係数
が高く、特に、使用初期において段ボール成形時の紙の
破断が発生し易い問題があった。さらに、（Ｃ）ＷＣ−
Ｃｏなどの耐摩耗性溶射皮膜表面に、Ｎｉメッキ皮膜を
施したものは、前記（Ｂ）段ロールと同様、段ボール成
形時の紙の破断が発生し易い問題があった。In the conventional (A) high-frequency surface quenched low-alloy steel and Cr-plated corrugated roll, the Cr plating is liable to wear due to contact with paper during use, and its service life Has a short problem, and the conventional (B)
In a step roll sprayed with a wear-resistant material such as WC-Co, the service life can be expected to be increased as compared with the Cr-plated product (A). However, there is a problem that it is difficult to finish the surface, and the coefficient of friction with paper is high. Furthermore, (C) WC-
In the case where the surface of the abrasion-resistant sprayed coating of Co or the like is coated with a Ni plating film, as in the case of the (B) corrugated roll, there is a problem that the paper is easily broken at the time of corrugated cardboard molding.
【０００４】本発明は上記技術水準に鑑み、従来の段ロ
ールにおける上記の問題点を解決し、段ロールの耐用年
数を従来の（Ａ）Ｃｒメッキ品に比べて著しく長寿命化
すると共に、特に使用初期における段ボール成形時の紙
の破断を従来の（Ｂ）ＷＣ−Ｃｏ溶射品及び（Ｃ）ＷＣ
−Ｃｏなどの耐摩耗性溶射皮膜＋Ｎｉメッキ品に比べて
著しく低減することによって、長寿命、高信頼性段ロー
ルを提供しようとするものである。The present invention has been made in view of the above-mentioned technical state, and solves the above-mentioned problems in the conventional step roll. The service life of the step roll is remarkably extended as compared with the conventional (A) Cr-plated product. In the early stage of use, the paper breakage during corrugated cardboard molding was reduced by the conventional (B) WC-Co sprayed product and (C) WC
An object of the present invention is to provide a long-life, high-reliability corrugated roll by significantly reducing the wear-resistant sprayed coating of -Co or the like and a Ni-plated product.
【０００５】[0005]
【課題を解決するための手段】本発明はロール体表面に
形成される表面層の最内層がロール本体母材との密着性
がよいＮｉもしくはＮｉ＋Ｃｒ溶射層、最外層がＣｒ層
であり、その中間層がＷＣ＋Ｎｉ＋Ｃｒ溶射層によって
形成されてなることを特徴とするコルゲートマシン用段
ロールである。According to the present invention, the innermost layer of the surface layer formed on the surface of the roll body is a Ni or Ni + Cr sprayed layer having good adhesion to the roll base material, and the outermost layer is a Cr layer. A step roll for a corrugating machine, wherein the intermediate layer is formed by a WC + Ni + Cr sprayed layer.
【０００６】[0006]
【発明の実施の形態】本発明の対象とする段ロール本体
母材としては、Ｓ４５Ｃ，ＳＣＭ４４０などの鉄鋼材料
が使用される。該段ロール本体母材表面層の最内層には
該母材材料との密着性が優れたＮｉもしくはＮｉ＋Ｃｒ
よりなる溶射層が適用される。Ｎｉ＋Ｃｒよりなる溶射
層を適用する際には母材との密着性を考慮して、先ずＮ
ｉ：１００％に近いものを溶射し、徐々にＣｒ量を増し
た傾斜組成のＮｉ＋Ｃｒ層を溶射することが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION As a base material of a corrugated roll main body to which the present invention is applied, a steel material such as S45C and SCM440 is used. The innermost layer of the step roll body base material surface layer is Ni or Ni + Cr having excellent adhesion to the base material.
A thermal spray layer is applied. When applying a thermal sprayed layer made of Ni + Cr, first consider N
i: It is preferable to spray a material close to 100% and spray a Ni + Cr layer having a gradient composition in which the amount of Cr is gradually increased.
【０００７】段ロール本体母材に密着性の優れたＮｉも
しくはＮｉ＋Ｃｒよりなる溶射層を形成させた後、ＷＣ
＋Ｎｉ＋Ｃｒよりなる中間層を溶射により形成する。こ
の場合も外側にいくほどＣｒ量を増し、中間層の組成を
傾斜組成とし、中間層の最外層がＣｒのみになるように
することが好ましい。このように中間層を溶射した後、
最後に該中間層をＣｒ層で被覆し、本発明の段ロールが
製造される。After forming a sprayed layer of Ni or Ni + Cr having excellent adhesion on the base material of the step roll body, the WC
An intermediate layer of + Ni + Cr is formed by thermal spraying. Also in this case, it is preferable that the amount of Cr increases toward the outside, the composition of the intermediate layer is a graded composition, and the outermost layer of the intermediate layer is only Cr. After spraying the intermediate layer in this way,
Finally, the intermediate layer is coated with a Cr layer to produce the step roll of the present invention.
【０００８】（作用）本発明で製造された段ロールは硬
質体であるＷＣを含む耐摩耗性の中間溶射層を最外層の
Ｃｒで被覆している。このため、表面における摩擦係数
は使用初期においても、従来のＣｒメッキ品と変わるこ
となく、ＷＣ−Ｃｏ溶射品やそのＮｉメッキ品で見られ
るような段ボール成形時の紙の破断は発生しない。(Effect) The corrugated roll manufactured in the present invention has a wear-resistant intermediate sprayed layer containing WC, which is a hard body, covered with the outermost layer of Cr. For this reason, even in the early stage of use, the friction coefficient on the surface does not differ from that of the conventional Cr-plated product, and the paper does not break during corrugated cardboard molding as seen in the WC-Co sprayed product or its Ni-plated product.
【０００９】本発明で製造された段ロールを使用し続け
ると、やがて表面のＣｒ層が摩耗し、消滅すると硬質体
を含む耐摩耗性の中間溶射層が現出し、段ロールの耐摩
耗寿命を維持することとなる。なおこの時、紙による摩
耗面は極めて平滑である。すなわち、表面のＣｒ層が摩
減後に現出する硬質体を含む耐摩耗性の中間溶射層の表
面も極めて平滑となっており、紙の破断の原因となる摩
擦係数も十分に小さくなっており、紙の破断を起こすこ
となく、操業を維持することができる。また、最内層を
ＮｉもしくはＮｉ＋Ｃｒ溶射層とすることで、ロール本
体と表面層の密着力を向上することができる。If the step roll manufactured by the present invention is continued to be used, the Cr layer on the surface wears out soon, and when it disappears, a wear-resistant intermediate sprayed layer including a hard body appears, and the wear life of the step roll is reduced. Will be maintained. At this time, the wear surface made of paper is extremely smooth. In other words, the surface of the wear-resistant intermediate sprayed layer including the hard body that appears after the wear of the Cr layer on the surface is extremely smooth, and the coefficient of friction that causes paper breakage is sufficiently small. The operation can be maintained without causing paper breakage. Further, by forming the innermost layer as a Ni or Ni + Cr sprayed layer, the adhesion between the roll body and the surface layer can be improved.
【００１０】[0010]
【実施例】以下、本発明の具体的な実施例をあげ、本発
明の効果を明らかにする。EXAMPLES Hereinafter, specific examples of the present invention will be described to clarify the effects of the present invention.
【００１１】（例１）以下、図１により、具体的に説明
する。図１（ａ）は段ロール断面の概念図、（ｂ）は歯
形部の拡大図及び層構成を示す図である。図１におい
て、１はロール本体であり、低合金鋼：ＳＣＭ４４０で
製作されている。２は最内層のＮｉ溶射層、３は最外層
のＣｒ層、４は中間層のＷＣ＋Ｎｉ＋Ｃｒ溶射層であ
る。なお、２の最内層の層厚みは５μｍ、３の最外層の
層厚みは中間層を被覆できる範囲で薄くてよいが、ここ
では３μｍ、４の中間層の厚みは２２μｍである。(Example 1) Hereinafter, a specific description will be given with reference to FIG. 1A is a conceptual diagram of a cross section of a step roll, and FIG. 1B is an enlarged view of a tooth profile and a diagram showing a layer structure. In FIG. 1, reference numeral 1 denotes a roll body, which is made of low alloy steel: SCM440. Reference numeral 2 denotes an innermost Ni sprayed layer, 3 denotes an outermost Cr layer, and 4 denotes an intermediate WC + Ni + Cr sprayed layer. The thickness of the innermost layer 2 may be 5 μm, and the thickness of the outermost layer 3 may be as thin as the intermediate layer can be covered. Here, the thickness of the intermediate layer 3 μm and 4 is 22 μm.
【００１２】（例２）同じく、図１によって、他の具体
例を説明する。この例では図１の１はロール本体であ
り、低合金鋼ＳＣＭ４４０で製作されている。２の最内
層をＮｉ＋Ｃｒ溶射層とし、３の最外層をＣｒ層、４の
中間層をＷＣ＋Ｎｉ＋Ｃｒ溶射層とした。なお、２の最
内層の層厚みは５μｍ、３の最外層の層厚みは３μｍ、
４の中間層の厚みは２２μｍである。(Example 2) Similarly, another specific example will be described with reference to FIG. In this example, reference numeral 1 in FIG. 1 denotes a roll body, which is made of low alloy steel SCM440. The innermost layer 2 was a Ni + Cr sprayed layer, the outermost layer 3 was a Cr layer, and the middle layer 4 was a WC + Ni + Cr sprayed layer. The thickness of the innermost layer of 2 is 5 μm, the thickness of the outermost layer of 3 is 3 μm,
The thickness of the intermediate layer of No. 4 is 22 μm.
【００１３】（例３）同じく、図１により、さらに他の
具体例を説明する。この例では図１の１はロール本体で
あり、低合金鋼ＳＣＭ４４０で製作されている。２の最
内層はＮｉメッキ層であり、３の最外層はＣｒ層、４の
中間層はＷＣ＋Ｎｉ＋Ｃｒ溶射層とした。なお、２の最
内層の層厚みは５μｍ、３の最外層の層厚みは３μｍ、
４の中間層の厚みは２２μｍである。Example 3 Similarly, another specific example will be described with reference to FIG. In this example, reference numeral 1 in FIG. 1 denotes a roll body, which is made of low alloy steel SCM440. The innermost layer 2 was a Ni plating layer, the outermost layer 3 was a Cr layer, and the middle layer 4 was a WC + Ni + Cr sprayed layer. The thickness of the innermost layer of 2 is 5 μm, the thickness of the outermost layer of 3 is 3 μm,
The thickness of the intermediate layer of No. 4 is 22 μm.
【００１４】[0014]
【発明の効果】本発明によるコルゲートマシン用の段ロ
ールは従来の（Ｂ）ＷＣ−Ｃｏ溶射品及びそのＮｉメッ
キ被覆品のように特に使用初期における紙の破断トラブ
ルもなく、また、従来の（Ａ）Ｃｒメッキ品に比べて約
２倍の大幅な長寿命化を達成することができる。According to the present invention, the corrugating step roll for a corrugating machine according to the present invention has no trouble of breaking the paper in the early stage of use, unlike the conventional (B) WC-Co sprayed product and its Ni-plated coated product. A) It is possible to achieve a substantially longer service life, which is about twice that of a Cr-plated product.
【図１】本発明の対象とするコルゲートマシン用段ロー
ルの概略図を示し、（ａ）はその断面の概念図、（ｂ）
は歯形部の拡大図及び層構成を示す。FIG. 1 is a schematic view of a corrugating machine corrugated roll to which the present invention is applied; FIG.
Shows an enlarged view of the tooth profile and the layer configuration.
Claims (1)
層がロール本体母材との密着性がよいＮｉもしくはＮｉ
＋Ｃｒ溶射層、最外層がＣｒ層であり、その中間層がＷ
Ｃ＋Ｎｉ＋Ｃｒ溶射層によって形成されてなることを特
徴とするコルゲートマシン用段ロール。An inner layer of a surface layer formed on the surface of a roll body is made of Ni or Ni having good adhesion to a roll base material.
+ Cr sprayed layer, the outermost layer is a Cr layer, and the intermediate layer is W
A corrugating machine step roll formed by a C + Ni + Cr sprayed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18802097A JPH1134190A (en) | 1997-07-14 | 1997-07-14 | Corrugating roll for corrugating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18802097A JPH1134190A (en) | 1997-07-14 | 1997-07-14 | Corrugating roll for corrugating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1134190A true JPH1134190A (en) | 1999-02-09 |
Family
ID=16216265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18802097A Pending JPH1134190A (en) | 1997-07-14 | 1997-07-14 | Corrugating roll for corrugating machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1134190A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1028265A1 (en) | 1999-02-12 | 2000-08-16 | Nsk Ltd | Roller clutch built-in type pulley apparatus for alternator |
| US7150923B2 (en) * | 2000-10-24 | 2006-12-19 | Goodrich Technology Corporation | Chrome coating composition |
-
1997
- 1997-07-14 JP JP18802097A patent/JPH1134190A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1028265A1 (en) | 1999-02-12 | 2000-08-16 | Nsk Ltd | Roller clutch built-in type pulley apparatus for alternator |
| US7150923B2 (en) * | 2000-10-24 | 2006-12-19 | Goodrich Technology Corporation | Chrome coating composition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20030218 |