JP4882015B2 - Notch roll and manufacturing method thereof - Google Patents

Notch roll and manufacturing method thereof Download PDF

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JP4882015B2
JP4882015B2 JP2010107665A JP2010107665A JP4882015B2 JP 4882015 B2 JP4882015 B2 JP 4882015B2 JP 2010107665 A JP2010107665 A JP 2010107665A JP 2010107665 A JP2010107665 A JP 2010107665A JP 4882015 B2 JP4882015 B2 JP 4882015B2
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roll material
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JP2011235221A (en
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昌夫 平井
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HIRAI KOGYO CORPORATION
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Description

本発明は、塗工装置において基材ウェブに塗布された塗工液が均一になるように膜厚をコントロールするためのエッジ部を備えたノッチロールとその製造方法に関する。   The present invention relates to a notch roll having an edge portion for controlling a film thickness so that a coating liquid applied to a substrate web in a coating apparatus is uniform, and a manufacturing method thereof.

ノッチロールは、回転するバックアップロールとの間で一方向に走行する基材ウェブの一面に塗布された塗工液が均一になるようにエッジ部によって膜厚をコントロールするロールで、通常固定された状態で使用される。このノッチロールはバックアップロールとの隙間が均一でないと、塗工膜厚にバラツキが生じてしまい、またエッジ部のごく小さな傷でも塗工面の均一化に悪影響を及ぼし、従ってノッチロールの特にエッジ部には高精度が要求される。   The notch roll is a roll that controls the film thickness by the edge so that the coating liquid applied to one surface of the base web traveling in one direction with the rotating backup roll is uniform, and is usually fixed Used in state. If the gap between the notch roll and the backup roll is not uniform, the coating film thickness will vary, and even a very small scratch on the edge will adversely affect the uniformity of the coating surface. Requires high precision.

従来、ノッチロールの製造にあたっては、エッジ部を、耐食性及び耐摩耗性の良好な硬質材料によりロール本体と別体に形成し、このエッジ部材をロール本体にボルトによって取り付け固定するようにしている。   Conventionally, when manufacturing a notch roll, an edge portion is formed separately from a roll body with a hard material having good corrosion resistance and wear resistance, and this edge member is fixedly attached to the roll body with a bolt.

上記従来のノッチロールの製造方法では、硬質材料のエッジ部材にボルト用のネジ孔を形成する必要があり、そのネジ孔加工が面倒であると共に、エッジ部材の取付作業に非常な手間がかかり、製作コストが高くつくといった問題があった。   In the manufacturing method of the above conventional notch roll, it is necessary to form screw holes for bolts in the edge member made of a hard material, and the screw hole processing is troublesome, and it takes a lot of labor to attach the edge member, There was a problem that the production cost was high.

本発明は、上記の課題に鑑み、高精度で耐久性に優れたエッジ部材をもつノッチロールを低コストで製造できるノッチロールとその製造方法を提供することを目的とする。   An object of this invention is to provide the notch roll which can manufacture the notch roll which has an edge member excellent in durability with high precision at low cost in view of said subject, and its manufacturing method.

上記課題を解決するための手段を、後述する実施形態の参照符号を付して説明すると、請求項１に係る発明のノッチロールの製造方法は、ロール素材５にその軸方向に平行な一つ又は複数の深孔６を穿設し、このロール素材５の深孔６に耐食性及び耐摩耗性の良好な合金粉末７を充填して、カプセル９を形成し、このカプセル９をＨＩＰ（熱間等方圧加圧）処理することにより、ロール素材５の深孔６に合金粉末のＨＩＰ層１２を形成し、その後ロール素材５をＨＩＰ層１２の一部が外周部に表れるように円筒状に切削加工すると共に、ロール素材５の外周部とＨＩＰ層１２との間にロール素材５の軸方向に平行な切欠溝３を削成し、この切欠溝３に臨むＨＩＰ層１２部分を仕上げ加工してノッチロール１のエッジ部４を形成するようにしたことを特徴とするものである。 Means for solving the above problems will be described with reference numerals in the embodiments described later. The notch roll manufacturing method according to the first aspect of the present invention is a roll material 5 that is parallel to the axial direction. Alternatively, a plurality of deep holes 6 are formed, and the deep holes 6 of the roll material 5 are filled with alloy powder 7 having good corrosion resistance and wear resistance to form capsules 9, and the capsules 9 are formed as HIP (hot Isotropic pressurization), the HIP layer 12 of alloy powder is formed in the deep holes 6 of the roll material 5, and then the roll material 5 is formed into a cylindrical shape so that a part of the HIP layer 12 appears on the outer periphery. In addition to cutting, the notch groove 3 parallel to the axial direction of the roll material 5 is cut between the outer periphery of the roll material 5 and the HIP layer 12, and the HIP layer 12 part facing the notch groove 3 is finished. To form the edge 4 of the notch roll 1 And it is characterized in and.

請求項２は、請求項１に記載のノッチロールの製造方法において、ロール素材５は丸棒材５ａからなることを特徴とするものである。 A second aspect of the present invention is the method of manufacturing a notch roll according to the first aspect, wherein the roll material 5 is made of a round bar 5a.

請求項３は、請求項１に記載のノッチロールの製造方法において、ロール素材５はパイプ材５ｂからなることを特徴とするものである。 A third aspect of the present invention is the method of manufacturing a notch roll according to the first aspect, wherein the roll material 5 is made of a pipe material 5b.

請求項４は、請求項１〜３の何れか１項に記載のノッチロールの製造方法によって、ロール素材５の外周面に耐食性及び耐摩耗性の良好な合金粉末７がＨＩＰ（熱間等方圧加圧）処理された合金粉末のＨＩＰ層１２を形成し、このＨＩＰ層１２にノッチロールのエッジ部４が一体形成されてなることを特徴とするものである。 According to a fourth aspect of the present invention, the alloy powder 7 having good corrosion resistance and wear resistance is formed on the outer peripheral surface of the roll material 5 by the method of manufacturing a notch roll according to any one of the first to third aspects. A HIP layer 12 of the alloy powder that has been subjected to pressure and pressure treatment is formed, and the edge portion 4 of the notch roll is integrally formed on the HIP layer 12.

請求項５は、請求項４に記載のノッチロールにおいて、ロール素材５の外周部に複数個のエッジ部４が形成されてなることを特徴とするものである。 A fifth aspect of the present invention is the notch roll according to the fourth aspect, wherein a plurality of edge portions 4 are formed on the outer peripheral portion of the roll material 5.

上記解決手段による発明の効果を、後述する実施形態の参照符号を付して説明すると、請求項１に係る発明によれば、ロール素材５に軸方向の深孔６を穿設し、深孔６に耐食性及び耐摩耗性の良好な合金粉末７を充填してカプセル９を形成し、このカプセル９をＨＩＰ処理することによりロール素材５の深孔６に合金粉末のＨＩＰ層１２を形成した後に、ロール素材５をＨＩＰ層１２の一部が外周部に表れるよう円筒状に切削加工すると共に、ロール素材５の外周部とＨＩＰ層１２の間に切欠溝３を削成し、この切欠溝３に臨むＨＩＰ層１２部分を仕上げ加工してノッチロール１のエッジ部４を形成するようにしたから、エッジ部材をロール本体部と別体に製作してボルト止めしていた従来の製造方法に比べ、ノッチロール１の製造が簡単容易となって、その製造コストを安くできると共に、耐食性及び耐摩耗性の良好な合金粉末７をＨＩＰ処理した硬質のＨＩＰ層１２によって、キズや摩耗、腐食に強く、耐久性に優れた高精度のエッジ部４を形成することができる。 The effect of the invention by the above means will be described with reference numerals of the embodiments described later. According to the invention according to claim 1, the deep hole 6 in the axial direction is formed in the roll material 5, and the deep hole is formed. 6 is filled with an alloy powder 7 having good corrosion resistance and wear resistance to form a capsule 9, and the capsule 9 is subjected to HIP treatment to form a HIP layer 12 of the alloy powder in the deep hole 6 of the roll material 5. The roll material 5 is cut into a cylindrical shape so that a part of the HIP layer 12 appears on the outer periphery, and the notch groove 3 is formed between the outer periphery of the roll material 5 and the HIP layer 12. Since the edge part 4 of the notch roll 1 is formed by finishing the HIP layer 12 facing the surface, the edge member is manufactured separately from the roll body part and bolted to the conventional manufacturing method. Easy manufacture of notch roll 1 The manufacturing cost can be reduced, and the hard HIP layer 12 obtained by HIP-treating the alloy powder 7 having good corrosion resistance and wear resistance is highly resistant to scratches, wear and corrosion, and has high durability. The edge part 4 can be formed.

また、この製造方法によれば、ＨＩＰ層１２はミリ単位の十分な厚さで存在するので、エッジ部４が摩耗しても、その補修は、研削加工したり鏡面加工するだけでよく、従ってエッジ部４が機能を発揮する間は繰り返し使用することができる。又、エッジ部４は、マイクロスコープ測定で１ミクロン単位まで自由に削成することができ、その表面粗度はＲｙ０．１ミクロンまでに仕上げることができる。Further, according to this manufacturing method, since the HIP layer 12 exists in a sufficient thickness of millimeter units, even if the edge portion 4 is worn, the repair may be performed only by grinding or mirror finishing. It can be used repeatedly while the edge part 4 exhibits its function. Further, the edge portion 4 can be freely cut to the 1 micron unit by microscope measurement, and the surface roughness can be finished to Ry 0.1 micron.

一方、請求項２に係る発明のように、ロール素材５が丸棒材からなる場合は、深孔６の孔開け加工は容易であるが、ロール重量が重くなるため、小型のノッチロールを製造する場合に適している。On the other hand, when the roll material 5 is made of a round bar as in the invention according to claim 2, the drilling of the deep hole 6 is easy, but the roll weight becomes heavy, so a small notch roll is manufactured. Suitable for you.

また、請求項３に係る発明のように、ロール素材５が厚肉のパイプ材（中空材）５ｂからなる場合は、深孔６の孔開け加工は困難であるが、中空状であるためロール重量の軽減化を図ることができ、大型のノッチロール１を製造する場合に適している。Further, when the roll material 5 is made of a thick pipe material (hollow material) 5b as in the invention according to claim 3, the deep hole 6 is difficult to be drilled, but the roll material 5 is hollow and thus has a roll shape. The weight can be reduced, which is suitable for manufacturing a large notch roll 1.

請求項４に係る発明によれば、上記製造方法によって、ロール素材５の外周面に耐食性及び耐摩耗性の良好な合金粉末７がＨＩＰ（熱間等方圧加圧）処理された合金粉末のＨＩＰ層１２を形成し、このＨＩＰ層１２にノッチロールのエッジ部４が一体形成されてなるため、エッジ部材をロール本体部と別体に製作してボルト止めしていた従来の製造方法に比べ、ノッチロール１の製造が簡単容易となって、その製造コストを安くできると共に、耐食性及び耐摩耗性の良好な合金粉末７をＨＩＰ処理した硬質のＨＩＰ層１２によって、キズや摩耗、腐食に強く、耐久性に優れた高精度のエッジ部４を形成することができる。According to the invention of claim 4, the alloy powder obtained by subjecting the outer peripheral surface of the roll material 5 to the HIP (hot isostatic pressing) treatment of the alloy powder 7 having good corrosion resistance and wear resistance by the manufacturing method described above. Since the HIP layer 12 is formed and the edge portion 4 of the notch roll is integrally formed on the HIP layer 12, the edge member is manufactured separately from the roll main body portion and is bolted to the conventional manufacturing method. The notch roll 1 can be manufactured easily and easily, its manufacturing cost can be reduced, and the hard HIP layer 12 obtained by HIP treatment of the alloy powder 7 having good corrosion resistance and wear resistance is resistant to scratches, wear and corrosion. Thus, it is possible to form the highly accurate edge portion 4 having excellent durability.

請求項５に係る発明によれば、ロール素材５の外周部に複数個のエッジ部４が形成されてなるため、エッジ部４が摩耗した場合には、ノッチロール１を取り替えることなく、そのノッチロール１を取付台に対し回転させて他のエッジ部４をセットすることにより、そのまま使用することができるから、より経済的に使用することができる。According to the fifth aspect of the present invention, since the plurality of edge portions 4 are formed on the outer peripheral portion of the roll material 5, when the edge portion 4 is worn, the notch roll 1 is not replaced and the notch is replaced. By rotating the roll 1 with respect to the mounting base and setting the other edge portion 4, it can be used as it is, so that it can be used more economically.

(a) は本発明方法により製造されたノッチロールを示す正面図、(b) は(a) のＡ−Ａ線断面図である。(a) is a front view which shows the notch roll manufactured by the method of this invention, (b) is the sectional view on the AA line of (a). 図１に示すノッチロールの使用状態を説明する断面図である。It is sectional drawing explaining the use condition of the notch roll shown in FIG. ノッチロールの製造工程を示すもので、(a) はロール素材に深孔を穿設した状態の断面図、(b) は(a) のＢ−Ｂ線断面図である。The manufacturing process of a notch roll is shown, (a) is a cross-sectional view of a state in which a deep hole is formed in a roll material, and (b) is a cross-sectional view taken along line BB of (a). (a) はロール素材の深孔に合金粉末を充填して形成したカプセルを示す断面図、(b) は(a) のＣ−Ｃ線断面図である。(a) is sectional drawing which shows the capsule formed by filling the alloy powder in the deep hole of the roll raw material, (b) is CC sectional view taken on the line of (a). (a) はカプセルをＨＩＰ処理装置に入れてＨＩＰ処理している状態を概略的に説明する説明図、(b) はＨＩＰ処理されたカプセルを機械加工する状態の説明断面図、(c) は切削加工して形成された状態の断面図、(d) は(c) 仕上げ加工して形成したエッジ部を含むノッチロールの一部拡大図である。(a) is an explanatory diagram for schematically explaining a state in which the capsule is put into the HIP processing apparatus and is subjected to HIP processing, (b) is an explanatory sectional view of a state in which the capsule subjected to HIP processing is machined, and (c) is Sectional drawing of the state formed by cutting, (d) is a partially enlarged view of a notch roll including an edge portion formed by (c) finishing. (a) は他の形態のカプセルを示す縦断面図、(b) は(a) に示すカプセルの端面図、(c) は機械加工して形成されたノッチロールの端面図である。(a) is a longitudinal sectional view showing another form of capsule, (b) is an end view of the capsule shown in (a), and (c) is an end view of a notch roll formed by machining. (a) は更に他のカプセルの端面図、(b) は機械加工して形成されたノッチロールの端面図である。(a) is an end view of still another capsule, and (b) is an end view of a notch roll formed by machining. パイプ材からなるロール素材に深孔を穿設した状態の縦断面図、(b) はその端面図である。FIG. 3 is a longitudinal sectional view of a state in which a deep hole is formed in a roll material made of a pipe material, and FIG.

以下に本発明の好適な実施形態を図面に基づいて説明すると、図１の(a) は本発明方法により製造されたノッチロールを示す正面図、(b) は(a) のＡ−Ａ線断面図であり、この図において、１はノッチロールであり、このノッチロール１の両端部には、塗工装置の機台（図示せず）に対しノッチロールを固定するためのボス２，２が取り付けられている。また、このノッチロール１には、ノッチロール１の軸方向に平行な切欠溝３が周方向に１８０°の間隔をおいて２つ形成され、各切欠溝３にはエッジ部４が設けられている。   A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a front view showing a notch roll manufactured by the method of the present invention, and FIG. 1 (b) is an AA line of (a). 1 is a notch roll, and bosses 2 and 2 for fixing the notch roll to a machine base (not shown) of a coating apparatus are provided at both ends of the notch roll 1. Is attached. Further, the notch roll 1 is formed with two notch grooves 3 parallel to the axial direction of the notch roll 1 at intervals of 180 ° in the circumferential direction, and each notch groove 3 is provided with an edge portion 4. Yes.

図２は上記ノッチロール１の使用状態を示しており、このノッチロール１は固定ロールであって、回転するバックアップロール１０との間で一方向に走行する基材ウェブ２０の一面に塗布された高粘度の塗工液３０を、エッジ部４、正確にはそのエッジ面４ａでならして膜厚を均一にするようになっている。   FIG. 2 shows the state of use of the notch roll 1, which is a fixed roll and applied to one surface of the base web 20 that travels in one direction with the rotating backup roll 10. The high-viscosity coating liquid 30 is leveled at the edge portion 4, more precisely the edge surface 4a, so that the film thickness is uniform.

上記ノッチロール１を製造する方法について、図３〜図８を参照しながら、以下に説明する。   A method for manufacturing the notch roll 1 will be described below with reference to FIGS.

先ず、ロール素材５として、ステンレス系材料からなる所定径及び所定長さの円筒形状のムク材（丸棒材）５ａを使用し、このロール素材５に、図３の(a) ，(b) に示すように、軸心から一定半径にある周辺側に所定径の例えば２つの深孔６，６を、ロール素材５の一端から他端側へ軸方向に沿って穿設する。母材であるロール素材５を形成するステンレス系材料としては、例えば、ＳＵＳ３２９Ｊ（オーステナイト／フェライトの２相系ステンレス）等を使用する。   First, as the roll material 5, a cylindrical mug material (round bar material) 5a made of a stainless steel material and having a predetermined diameter and a predetermined length is used, and the roll material 5 has (a) and (b) in FIG. As shown in FIG. 5, two deep holes 6 and 6 having a predetermined diameter are formed along the axial direction from one end of the roll material 5 to the other end side on the peripheral side having a constant radius from the axial center. For example, SUS329J (austenite / ferrite two-phase stainless steel) or the like is used as the stainless steel material forming the roll material 5 as the base material.

それから、図４の(a) ，(b) に示すように、ロール素材５の各深孔６に夫々耐食性及び耐摩耗性の良好な合金粉末７を充填し、各深孔６の開口端部を塞ぎ板８により塞いで密閉することにより、カプセル９を形成する。合金粉末７は、ニッケル基合金粉末、コバルト基合金粉末、タングステンカーバイト含有合金粉末等を使用する。尚、塞ぎ板８は、ロール素材５の端面に当て付けて適宜溶接することにより取り付ける。   Then, as shown in FIGS. 4 (a) and 4 (b), each deep hole 6 of the roll material 5 is filled with an alloy powder 7 having good corrosion resistance and wear resistance, and the open end of each deep hole 6 is filled. The capsule 9 is formed by closing and sealing with a closing plate 8. As the alloy powder 7, a nickel-base alloy powder, a cobalt-base alloy powder, a tungsten carbide-containing alloy powder, or the like is used. The closing plate 8 is attached by being applied to the end surface of the roll material 5 and appropriately welding.

上記のようにして形成したカプセル９を、図５の(a) に示すように、ＨＩＰ（熱間等方圧加圧）装置１１内に入れて、ＨＩＰ処理を施すことにより、ロール素材５の各深孔６内で前記合金粉末７が焼結され、深孔６の壁面に拡散されて一体に接合された円柱状ＨＩＰ層１２を形成する（図５の(b) 参照）。このＨＩＰ層１２は、硬度ＨＲＣ５８前後の硬質の合金である。   As shown in FIG. 5 (a), the capsule 9 formed as described above is placed in a HIP (hot isostatic pressing) device 11 and subjected to HIP treatment, whereby the roll material 5 The alloy powder 7 is sintered in each deep hole 6 to be diffused on the wall surface of the deep hole 6 to form a cylindrical HIP layer 12 that is integrally joined (see FIG. 5B). The HIP layer 12 is a hard alloy having a hardness of around HRC58.

こうして各深孔６にこれと同径の円柱状ＨＩＰ層１２を一体に形成したロール素材５を、図５の(b) 及び(c) に示すように、ＨＩＰ層１２の一部が外周部に表れるように旋盤等によって所要径の円筒状に切削加工し、そしてロール素材５の外周部とＨＩＰ層１２との間にロール素材５の軸方向に平行な切欠溝３をフライス盤や平削り盤等によって削成し、そして更に図５の(d) に示すように、この切欠溝３に臨むＨＩＰ層１２の内端面１２ａを平面研削盤により平面研削加工し、またその外周部分１２ｂを円筒研削盤により円筒研削加工更に鏡面加工して所望の仕上げ加工することにより、硬質のエッジ部４を形成する。鏡面加工には、ダイヤモンド砥石を使用する。   In this way, the roll material 5 in which the cylindrical HIP layer 12 having the same diameter is integrally formed in each deep hole 6, as shown in FIGS. 5B and 5C, a part of the HIP layer 12 is an outer peripheral portion. As shown in FIG. 5, a lathe or the like cuts into a cylindrical shape having a required diameter, and a notch groove 3 parallel to the axial direction of the roll material 5 is formed between the outer peripheral portion of the roll material 5 and the HIP layer 12 in a milling machine or a planing machine. Then, as shown in FIG. 5 (d), the inner end surface 12a of the HIP layer 12 facing the notch groove 3 is surface ground by a surface grinder, and the outer peripheral portion 12b is cylindrically ground. A hard edge portion 4 is formed by cylindrical grinding with a disk and mirror finishing to obtain a desired finish. A diamond grindstone is used for mirror finishing.

上述したようなノッチロール１の製造方法によれば、図３、図４に示すように、ロール素材５にその軸方向に平行な深孔６を穿設し、この深孔６に耐食性及び耐摩耗性の良好な合金粉末７を充填してカプセル９を形成し、図５に示すように、このカプセル９をＨＩＰ装置１１によってＨＩＰ処理することによってロール素材５の深孔６に合金粉末のＨＩＰ層１２を形成した後に、ロール素材５をＨＩＰ層１２の一部が外周部に表れるように円筒状に切削加工すると共に、ロール素材５の外周部とＨＩＰ層１２の間に切欠溝３を削成し、この切欠溝３に臨むＨＩＰ層１２部分を仕上げ加工してノッチロール１のエッジ部４を形成するようにしたから、エッジ部材をロール本体部と別体に製作してボルト止めしていた従来の製造方法に比べると、ノッチロール１の製造が容易となって、その製造コストを安くできると共に、耐食性及び耐摩耗性の良好な合金粉末７をＨＩＰ処理した硬質のＨＩＰ層１２によって、キズや摩耗、腐食に強く、耐久性に優れた高精度のエッジ部４を形成することができる。   According to the method of manufacturing the notch roll 1 as described above, as shown in FIGS. 3 and 4, a deep hole 6 parallel to the axial direction is formed in the roll material 5, and the deep hole 6 has corrosion resistance and resistance. A capsule 9 is formed by filling the alloy powder 7 with good wearability, and the capsule 9 is subjected to HIP treatment by the HIP device 11 as shown in FIG. After forming the layer 12, the roll material 5 is cut into a cylindrical shape so that a part of the HIP layer 12 appears on the outer periphery, and the notch groove 3 is cut between the outer periphery of the roll material 5 and the HIP layer 12. Since the edge portion 4 of the notch roll 1 is formed by finishing the HIP layer 12 portion facing the notch groove 3, the edge member is manufactured separately from the roll body portion and bolted. Compared to the conventional manufacturing method The roll roll 1 can be easily manufactured and its manufacturing cost can be reduced, and the hard HIP layer 12 obtained by HIP treatment of the alloy powder 7 having excellent corrosion resistance and wear resistance is resistant to scratches, wear and corrosion, and is durable. It is possible to form the highly accurate edge portion 4 excellent in the above.

また、この製造方法では、ＨＩＰ層１２はミリ単位の十分な厚さで存在することから、エッジ部４が摩耗しても、その補修は研削加工したり鏡面加工するだけでよく、そのためエッジ部４が機能を発揮する間は何回も繰り返し使用することができる。又、エッジ部４は、マイクロスコープ測定で１ミクロン単位まで自由に削成することができ、その表面粗度はＲｙ０．１ミクロンまでに仕上げることができる。   Further, in this manufacturing method, since the HIP layer 12 is present in a sufficient thickness of millimeter units, even if the edge portion 4 is worn, the repair may be performed only by grinding or mirror finishing. It can be used repeatedly many times while 4 functions. Further, the edge portion 4 can be freely cut to the 1 micron unit by microscope measurement, and the surface roughness can be finished to Ry 0.1 micron.

図１〜図５に示すノッチロール１の製造方法では、カプセル９の形成にあたり、ロール素材５に深孔６を二つ穿設し、これらの深孔６，６に夫々合金粉末７を充填して、カプセル９（図４）を形成しているが、図６の(a) ，(b) は、カプセル９を形成するにあたって、ロール素材５には深孔６を一つだけ穿設し、これに合金粉末７を充填して、カプセル（図示せず）を形成する場合を示し、(c) はその場合のカプセル９をＨＩＰ処理した後、機械加工して製造されたノッチロール１を示す。   In the manufacturing method of the notch roll 1 shown in FIGS. 1 to 5, when forming the capsule 9, two deep holes 6 are formed in the roll material 5, and these deep holes 6 and 6 are filled with the alloy powder 7 respectively. The capsule 9 (FIG. 4) is formed. In FIGS. 6 (a) and 6 (b), when forming the capsule 9, only one deep hole 6 is formed in the roll material 5. This shows a case in which the alloy powder 7 is filled to form a capsule (not shown), and (c) shows the notch roll 1 manufactured by subjecting the capsule 9 in that case to HIP treatment and machining. .

ロール素材５に形成する深孔６は必要に応じて１つでもよいし二つ以上複数でもよい。深孔６を複数穿設すれば、エッジ部４が複数設けられるから、エッジ部４が摩耗した場合には、ノッチロール１を取り替えることなく、そのノッチロール１を取付台に対し回転させて他のエッジ部４をセットすることにより、そのまま使用することができる。   The number of deep holes 6 formed in the roll material 5 may be one or more than two as required. If a plurality of deep holes 6 are formed, a plurality of edge portions 4 are provided. Therefore, when the edge portion 4 is worn, the notch roll 1 is rotated with respect to the mounting base without replacing the notch roll 1. Can be used as they are.

図７の(a) はロール素材５に深孔６を複数穿設した場合であるが、これらの深孔６，６に夫々合金粉末７を充填してカプセル９（図４）を形成し、ＨＩＰ処理した後、ＨＩＰ層１２には塗工に適した任意形状の機械加工を施して、必要とされる所望のエッジ部４を形成することができる。   FIG. 7 (a) shows a case where a plurality of deep holes 6 are formed in the roll material 5. Each of these deep holes 6 and 6 is filled with an alloy powder 7 to form a capsule 9 (FIG. 4). After the HIP treatment, the HIP layer 12 can be machined in an arbitrary shape suitable for coating to form a desired edge portion 4 as required.

図１〜図７に示した実施形態のノッチロール１は、ロール素材５を丸棒材（ムク材）５ａからなるものとし、この丸棒材５ａからなるロール素材５に深孔６を穿設しているが、このような丸棒材からなるロール素材５は、パイプ材（中空材）からなるものに比べて、深孔６の孔開け加工は容易であるが、ロール重量が重くなることから、小型のノッチロール１を製造する場合に適している。   The notch roll 1 according to the embodiment shown in FIGS. 1 to 7 has a roll material 5 made of a round bar material (a waste material) 5a, and a deep hole 6 is formed in the roll material 5 made of this round bar material 5a. However, the roll material 5 made of such a round bar material is easier to drill deep holes 6 than the pipe material (hollow material), but the roll weight is heavy. Therefore, it is suitable for manufacturing a small notch roll 1.

図８の(a) ，(b) はロール素材５が厚肉パイプ材（中空材）５ｂからなる場合を示している。このようにロール素材５が厚肉のパイプ材（中空材）５ｂからなる場合は、深孔６の孔開け加工が困難となるが、中空状であるためロール重量の軽減化を図ることができ、従って大型のノッチロール１を製造する場合に適している。   FIGS. 8A and 8B show a case where the roll material 5 is made of a thick pipe material (hollow material) 5b. As described above, when the roll material 5 is made of a thick pipe material (hollow material) 5b, it is difficult to drill the deep holes 6, but the roll weight can be reduced because of the hollow shape. Therefore, it is suitable for manufacturing a large notch roll 1.

１ ノッチロール
３ 切欠溝
４ エッジ部
５ ロール素材
６ 深孔
７ 合金粉末
９ カプセル
１２ ＨＩＰ層 DESCRIPTION OF SYMBOLS 1 Notch roll 3 Notch groove 4 Edge part 5 Roll raw material 6 Deep hole 7 Alloy powder 9 Capsule 12 HIP layer

Claims (5)

ロール素材にその軸方向に平行な一つ又は複数の深孔を穿設し、このロール素材の深孔に耐食性及び耐摩耗性の良好な合金粉末を充填して、カプセルを形成し、このカプセルをＨＩＰ（熱間等方圧加圧）処理することにより、ロール素材の深孔に合金粉末のＨＩＰ層を形成し、その後ロール素材をＨＩＰ層の一部が外周部に表れるように円筒状に切削加工すると共に、ロール素材の外周部とＨＩＰ層との間にロール素材の軸方向に平行な切欠溝を削成し、この切欠溝に臨むＨＩＰ層部分を仕上げ加工してノッチロールのエッジ部を形成するようにしたノッチロールの製造方法。One or a plurality of deep holes parallel to the axial direction are formed in the roll material, and the capsule is formed by filling the deep holes of the roll material with alloy powder having good corrosion resistance and wear resistance. Is subjected to HIP (hot isostatic pressing) treatment to form an HIP layer of alloy powder in the deep holes of the roll material, and then the roll material is cylindrically shaped so that a part of the HIP layer appears on the outer periphery. Cutting and cutting the notch groove parallel to the axial direction of the roll material between the outer periphery of the roll material and the HIP layer, and finishing the HIP layer part facing the notch groove, the edge part of the notch roll The manufacturing method of the notch roll which made it form. ロール素材は丸棒材からなる請求項１に記載のノッチロールの製造方法。The notch roll manufacturing method according to claim 1, wherein the roll material is a round bar. ロール素材はパイプ材からなる請求項１に記載のノッチロールの製造方法。The notch roll manufacturing method according to claim 1, wherein the roll material is a pipe material. 請求項１〜３の何れか１項に記載のノッチロールの製造方法によって、ロール素材の外周面に耐食性及び耐摩耗性の良好な合金粉末がＨＩＰ（熱間等方圧加圧）処理された合金粉末のＨＩＰ層を形成し、このＨＩＰ層にノッチロールのエッジ部が形成されてなるノッチロール。The alloy powder having good corrosion resistance and wear resistance is subjected to HIP (hot isostatic pressing) treatment on the outer peripheral surface of the roll material by the method for manufacturing a notch roll according to any one of claims 1 to 3. A notch roll in which an HIP layer of alloy powder is formed, and an edge portion of the notch roll is formed on the HIP layer. ロール素材の外周部に複数個のエッジ部が形成されてなる請求項４に記載のノッチロール。The notch roll according to claim 4, wherein a plurality of edge portions are formed on an outer peripheral portion of the roll material.
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