JPH11245101A - Manufacture of metallic seamless member - Google Patents

Manufacture of metallic seamless member

Info

Publication number
JPH11245101A
JPH11245101A JP4938198A JP4938198A JPH11245101A JP H11245101 A JPH11245101 A JP H11245101A JP 4938198 A JP4938198 A JP 4938198A JP 4938198 A JP4938198 A JP 4938198A JP H11245101 A JPH11245101 A JP H11245101A
Authority
JP
Japan
Prior art keywords
seamless
core
metal
peripheral surface
belt
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Withdrawn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
JP4938198A
Other languages
Japanese (ja)
Inventor
Kosaburo Matsuzawa
幸三郎 松澤
Junji Fujii
淳司 藤井
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.)
MATSUZAWA SEISAKUSHO KK
Idemitsu Petrochemical Co Ltd
Original Assignee
MATSUZAWA SEISAKUSHO KK
Idemitsu Petrochemical 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 MATSUZAWA SEISAKUSHO KK, Idemitsu Petrochemical Co Ltd filed Critical MATSUZAWA SEISAKUSHO KK
Priority to JP4938198A priority Critical patent/JPH11245101A/en
Publication of JPH11245101A publication Critical patent/JPH11245101A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a metallic belt which can attain a seamless member with improved fatigue strength. SOLUTION: The outer periphery surface of a seamless raw material 21 where a sheet-shaped metallic material formed out of marageing steel is continuous in an annular form is cut so as to form a fixed thickness. At the time of this manufacture, the outer periphery is formed into a cylindrical surface, and its outer-periphery diameter uses a core 11 smaller than the inner-periphery diameter of the seamless raw material 21. The seamless raw material 21 is fitted to the outer-periphery surface of the core 11, and the core 11 is heated for expansion, so as to press the outer-periphery surface of the core 11 into contact with the outer-periphery surface of the seamless raw material 21. The outer-periphery surface of the seamless raw material 21 is cut under this condition to keep the thickness of the whole belt constant, and the core 11 is cooled for contraction, so as to remove the belt from the core 11.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は金属製シームレス部
材の製造方法に関し、シームレスベルトやシームレスス
リーブの製造に適用できる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a metal seamless member, and is applicable to the production of a seamless belt or a seamless sleeve.

【0002】[0002]

【背景技術及び発明が解決しようとする課題】従来、搬
送用のコンベアベルトには、薄板状の金属材料を環状に
連続させた金属製エンドレスベルトが用いられている。
また、金属製エンドレスベルトは、合成樹脂製のフィル
ム、シート、ボード等の成形装置の部品としても利用さ
れている。特に、表面の平滑性が要求される光学用フィ
ルム、シート、ボードの製造用には、表面を鏡面仕上げ
した鏡面ベルトが用いられる。
2. Description of the Related Art Conventionally, as a conveyor belt for conveyance, a metal endless belt in which thin metal materials are continuously connected in a ring shape has been used.
The metal endless belt is also used as a part of a molding device such as a film, a sheet, and a board made of a synthetic resin. In particular, a mirror-finished belt whose surface is mirror-finished is used for the production of optical films, sheets, and boards that require a smooth surface.

【0003】従来、このような金属製エンドレスベルト
の作製法としては、例えば、電解鋳造によるニッケル製
のエンドレスベルトの作製法(特公昭33-8274号公
報)、このニッケル製エンドレスベルトにタングステン
を溶射し、更に硬化層を形成する方法(特開昭63-25924
5号公報)、等が提案されている。しかし、これらの製
法によって得られたベルトは、ニッケル製であるため、
耐久性の低いものである。
[0003] Conventionally, as a method for producing such a metal endless belt, for example, a method for producing an endless belt made of nickel by electrolytic casting (Japanese Patent Publication No. 33-8274), and spraying tungsten on this endless belt made of nickel. And a method of further forming a hardened layer (JP-A-63-25924)
No. 5) and the like have been proposed. However, since the belt obtained by these methods is made of nickel,
It has low durability.

【0004】また、18Niマルエージング鋼帯の両端を溶
接し、表面をガス窒化処理する製法(特開昭59-197642
号公報)、溶体化処理済みのマルエージング鋼板を溶接
した後、薄肉化し、その後軟窒化処理する方法(特開昭
62-80225号公報)等が提案されている。しかし、これら
の製法による金属製エンドレスベルトは、いずれも溶接
されたものであるため、溶接部から破断する虞れがあ
る。
[0004] Further, a method of welding both ends of an 18Ni maraging steel strip and subjecting the surface to gas nitriding treatment (Japanese Patent Laid-Open No. 59-197642).
Japanese Patent Application Laid-Open No. H10-260, and a method in which a solution-treated maraging steel sheet is welded, thinned, and then nitrocarburized.
No. 62-80225) has been proposed. However, since the metal endless belts manufactured by these methods are all welded, there is a possibility that the metal endless belts may break from the welded portions.

【0005】一方、本出願人は、特開平9-267222号公報
において、継目のないシームレス素材の外周面を切削し
て厚さを一定にすることにより作製するシームレス金属
ベルトの製造方法を提案した。この発明において使用す
るベルト材料は、析出硬化系ステンレス等であり、疲労
強度の点では、更に向上したものが要望されている。
On the other hand, the applicant of the present invention has proposed in Japanese Patent Application Laid-Open No. 9-267222 a method of manufacturing a seamless metal belt manufactured by cutting the outer peripheral surface of a seamless seamless material to make the thickness constant. . The belt material used in the present invention is a precipitation hardening stainless steel or the like, and further improved in fatigue strength is demanded.

【0006】そこで、本発明は、疲労強度の向上したシ
ームレス部材が得られる金属製シームレス部材の製造方
法を提供することを目的とする。
Accordingly, an object of the present invention is to provide a method for manufacturing a metal seamless member from which a seamless member having improved fatigue strength can be obtained.

【0007】[0007]

【課題を解決するための手段】本発明の第1発明は、薄
板状の金属材料が環状に連続した金属製シームレス部材
の製造方法であって、マルエージング鋼よりなる薄板状
金属材料が環状に連続したシームレス素材に対して、そ
のシームレス素材の外周面を切削してその厚さが一定の
金属製シームレス部材とすることを特徴とする。
A first invention of the present invention is a method of manufacturing a metal seamless member in which a thin metal material is continuously annularly formed, wherein the thin metal material made of maraging steel is annularly formed. For a continuous seamless material, the outer peripheral surface of the seamless material is cut to form a metal seamless member having a constant thickness.

【0008】前記マルエージング鋼は、靱性に富んだb
ccマルテンサイト基質にNi3Mo及びNi3Tiが析出したも
のであり、高い強度と靱性が得られる。また、このマル
エージング鋼には、Crを含有させて耐食性を付与したマ
ルエージングステンレス鋼を含む。本発明によれば、環
状の金属製シームレス素材の外周を切削することによ
り、シームレス部材の厚さを一定の厚さにすることがで
きる。この切削の際、例えばシームレス素材の内周を真
円に維持しておき、後述するコアを用いて、外周面を回
転切削等することにより、厚さを高精度に制御すること
ができる。前記金属製シームレス部材の具体例は、ベル
ト、スリーブ(円筒)、等である。
The maraging steel has a high toughness b
Ni 3 Mo and Ni 3 Ti are precipitated on the cc martensite substrate, and high strength and toughness can be obtained. The maraging steel includes a maraging stainless steel in which Cr is added to impart corrosion resistance. According to the present invention, the thickness of the seamless member can be made constant by cutting the outer periphery of the annular metal seamless material. In this cutting, the thickness can be controlled with high precision by, for example, keeping the inner circumference of the seamless material in a perfect circle and rotating-cutting the outer circumference using a core described later. Specific examples of the metal seamless member include a belt and a sleeve (cylindrical).

【0009】本発明の第2発明に係る金属製シームレス
部材の製造方法は、第1発明において、外周が円筒面と
され、かつ外周径が前記シームレス素材の内周径より小
さいコアを使用し、このコアの外周面に前記シームレス
素材を装着し、前記コアを加熱膨張させて前記コアの外
周面を前記シームレス素材の内周面に圧着し、この状態
で前記シームレス素材の外周面を切削して前記ベルト全
体の厚さが一定の金属製シームレス部材とした後、前記
コアを冷却収縮させて前記コアから前記金属製シームレ
ス部材を取り外すことを特徴とする。
A method for manufacturing a metal seamless member according to a second invention of the present invention is the method according to the first invention, wherein the outer periphery is a cylindrical surface, and the outer diameter is smaller than the inner diameter of the seamless material. Attach the seamless material to the outer peripheral surface of this core, heat-expand the core and crimp the outer peripheral surface of the core to the inner peripheral surface of the seamless material, and cut the outer peripheral surface of the seamless material in this state. After forming the metal seamless member having a constant thickness of the entire belt, the core is cooled and contracted to remove the metal seamless member from the core.

【0010】本発明によれば、コアの熱膨張、収縮を利
用して、いわゆる「しまりばめ」の状態が得られるた
め、シームレス素材を確実に保持することができる。こ
のしまりばめの際、コアを均質な材料で外周が真円とな
るように作製しておけば、その熱膨張があっても外周面
の真円度が維持され、これによりシームレス素材の切削
の際において、シームレス部材の厚さの高精度化を実現
することができる。また、本発明によれば、使用する装
置が構造的に簡単になり、シームレス素材の装着作業も
容易になる。
According to the present invention, a so-called "tight fit" state can be obtained by utilizing the thermal expansion and contraction of the core, so that the seamless material can be reliably held. In the case of this tight fit, if the core is made of a homogeneous material so that the outer circumference is a perfect circle, the roundness of the outer circumference will be maintained even if the thermal expansion occurs, thereby cutting the seamless material. In this case, the thickness of the seamless member can be increased in accuracy. Further, according to the present invention, the device to be used is structurally simple, and the work of mounting the seamless material is also easy.

【0011】本発明の第3発明に係る金属製シームレス
部材の製造方法は、第1又は第2発明において、前記シ
ームレス素材は、押出し成形、引抜き成形、鋳造、遠心
鋳造、鍛造のいずれかにより得られた素材であることを
特徴とする。前記製法により得られた素材は、全周にわ
たって継目がなく、均質なシームレス素材であるため、
本発明の切削により製造される金属製シームレス部材の
品質を一層向上させることができる。
According to a third aspect of the present invention, in the method for manufacturing a metal seamless member according to the first or second aspect, the seamless material is obtained by any one of extrusion molding, pultrusion molding, casting, centrifugal casting, and forging. It is characterized in that it is a material obtained. The material obtained by the above manufacturing method is seamless over the entire circumference and is a homogeneous seamless material.
The quality of the metal seamless member manufactured by the cutting of the present invention can be further improved.

【0012】本発明の第4発明に係る金属製シームレス
部材の製造方法は、第1〜第3発明のいずれかにおい
て、前記シームレス素材の切削後の厚さが50μm〜2mm
であることを特徴とする。前記シームレス素材の切削後
の厚さが50μmより薄いと、張力に対して伸び易くな
り、2mmより厚いと、繰り返し曲げ疲労強度が低くな
る。
A method for manufacturing a metal seamless member according to a fourth aspect of the present invention is the method according to any one of the first to third aspects, wherein the thickness of the seamless material after cutting is 50 μm to 2 mm.
It is characterized by being. If the thickness of the seamless material after cutting is less than 50 μm, the material is easily stretched with respect to tension, and if it is more than 2 mm, the bending fatigue strength is low.

【0013】[0013]

【発明の実施の形態】図面を参照して、本発明の一実施
形態に係る金属製シームレス部材である金属製シームレ
スベルト20の製造方法を説明する。本実施形態におい
て、シームレス素材21の外周面を切削するための装置と
しては、既存の旋盤やフライス盤を用いることができ
る。図1、2に示すように、この装置13は、シームレス
素材21が装着されるコア11と、このコア11が装着された
支持軸31と、この支持軸31を回転自在に支持する一対の
軸受32と、支持軸31を回転させるモータ34とを備えて構
成されている。前記コア11は、断面が真円の円柱形状を
有し、アルミニウム等の熱伝導性が良好な金属よりな
る。このコア11の内部には、カートリッジ式のヒータ12
が内蔵されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a metal seamless belt 20 which is a metal seamless member according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, an existing lathe or milling machine can be used as a device for cutting the outer peripheral surface of the seamless material 21. As shown in FIGS. 1 and 2, the device 13 includes a core 11 on which a seamless material 21 is mounted, a support shaft 31 on which the core 11 is mounted, and a pair of bearings for rotatably supporting the support shaft 31. 32, and a motor 34 for rotating the support shaft 31. The core 11 has a columnar shape with a perfect circular cross section, and is made of a metal having good thermal conductivity such as aluminum. Inside the core 11, a cartridge type heater 12 is provided.
Is built-in.

【0014】図1に示すように、このコア11は、冷却状
態では外径dc1であり、ヒータ12により加熱された状態
では熱膨張により外径dc2となる。従って、内径db1(dc
2>db1>dc1)のシームレス素材21であれば、コア11が
冷却状態でコア11の外周面に装着可能であり、この状態
でコア11を加熱して膨張させると、コア11の外周面がシ
ームレス素材21の内周面に密着し、シームレス素材21を
嵌合状態で保持することになる。なお、コア11は自然空
冷により冷却してもよいが、コア11内に水冷式等の冷却
手段を設けたり、コア11の側方に送風式の冷却手段を設
けて強制的にコア11を冷却するようにしてもよい。
As shown in FIG. 1, the core 11 has an outer diameter dc1 in a cooled state, and has an outer diameter dc2 due to thermal expansion when heated by a heater 12. Therefore, the inner diameter db1 (dc
2>db1> dc1), the core 11 can be mounted on the outer peripheral surface of the core 11 in a cooled state, and when the core 11 is heated and expanded in this state, the outer peripheral surface of the core 11 becomes It comes into close contact with the inner peripheral surface of the seamless material 21 and holds the seamless material 21 in a fitted state. The core 11 may be cooled by natural air cooling.However, a cooling means such as a water cooling type is provided in the core 11, or a cooling means of a ventilation type is provided beside the core 11 to forcibly cool the core 11. You may make it.

【0015】前記支持軸31は、コア11の中心を貫通する
ようにしてコア11を支持している。この支持軸31の一端
には歯車33及びモータ34が設けられている。支持軸31の
他端にはスリップリング35が設けられ、コア11に内蔵さ
れたヒータ12の電源線はこのスリップリング35に接続さ
れている。このスリップリング35には外部の電源に接続
されたスリップブラシ36が摺接している。コア11の側方
には、外周面を切削するための切削工具14が配置されて
いる。切削工具14は、コア11に対して精密に相対移動可
能なように装置13の工具取付部に支持されている。
The support shaft 31 supports the core 11 so as to pass through the center of the core 11. A gear 33 and a motor 34 are provided at one end of the support shaft 31. A slip ring 35 is provided at the other end of the support shaft 31, and a power supply line of the heater 12 built in the core 11 is connected to the slip ring 35. The slip ring 35 is in sliding contact with a slip brush 36 connected to an external power supply. A cutting tool 14 for cutting the outer peripheral surface is disposed on the side of the core 11. The cutting tool 14 is supported by a tool mounting portion of the device 13 so as to be able to move relative to the core 11 precisely.

【0016】この装置13を用いて次のように金属製シー
ムレスベルト20を製造する。先ず、図3に示すように、
シームレス素材21となる円筒状素材22を作製する。この
円筒状素材22は、マルエージング鋼よりなる。円筒状素
材22の作製には、鍛造、押出し、引抜き、鋳造、遠心鋳
造などの手法を利用する。この円筒状素材22は、内径db
2がコア11の冷却時の外径dc1より十分に小さく、外径db
3は内径db2より所定厚さt2だけ大きくなるように作製す
る。
Using this apparatus 13, a metal seamless belt 20 is manufactured as follows. First, as shown in FIG.
A cylindrical material 22 to be a seamless material 21 is produced. This cylindrical material 22 is made of maraging steel. For the production of the cylindrical material 22, techniques such as forging, extrusion, drawing, casting and centrifugal casting are used. This cylindrical material 22 has an inner diameter db
2 is sufficiently smaller than the outer diameter dc1 when the core 11 is cooled, and the outer diameter db
3 is manufactured so as to be larger than the inner diameter db2 by a predetermined thickness t2.

【0017】次に、図4に示すように、この円筒状素材
22の内周面を内径db1の真円となるように切削して、シ
ームレス素材21を作製する。内周面の切削には、ホーニ
ング加工、スピニング加工等の既知の手法を利用でき
る。この際、シームレス素材21の内周面の全周長は、製
造すべき金属製シームレスベルト20の内周面の全周長に
要求される寸法に正確に調整する。次に、このシームレ
ス素材21をコア11に装着し、続いてコア11を外周面切削
用の装置13に装着する。
Next, as shown in FIG.
The inner peripheral surface of 22 is cut so as to be a perfect circle having an inner diameter db1, thereby producing a seamless material 21. Known methods such as honing and spinning can be used for cutting the inner peripheral surface. At this time, the entire peripheral length of the inner peripheral surface of the seamless material 21 is accurately adjusted to a dimension required for the entire peripheral length of the inner peripheral surface of the metal seamless belt 20 to be manufactured. Next, the seamless material 21 is mounted on the core 11, and then the core 11 is mounted on the outer peripheral surface cutting device 13.

【0018】シームレス素材21をコア11に装着する際、
先ずコア11を冷却状態としておき、コア11の一端側から
シームレス素材21を通し、コア11の外周面に装着する。
この状態で、ヒータ12で加熱を行い、コア11を膨張させ
てシームレス素材21をコア11の外周面に密着する。シー
ムレス素材21を装置13に装着した後、コア11を回転させ
るとともに、切削工具14をシームレス素材21の外周面に
接触させ、この外周面を全周及び全幅にわたって精密か
つ均一に切削する。
When attaching the seamless material 21 to the core 11,
First, the core 11 is kept in a cooled state, and the seamless material 21 is passed through from one end of the core 11 and attached to the outer peripheral surface of the core 11.
In this state, heating is performed by the heater 12, and the core 11 is expanded to bring the seamless material 21 into close contact with the outer peripheral surface of the core 11. After the seamless material 21 is mounted on the device 13, the core 11 is rotated, and the cutting tool 14 is brought into contact with the outer peripheral surface of the seamless material 21, and the outer peripheral surface is precisely and uniformly cut over the entire circumference and the entire width.

【0019】この切削は、シームレス素材21の厚さがベ
ルト20の所望の厚さであるt0となるまで行い、これによ
り外径db0で内径db1の金属製シームレスベルト20を作製
する。この後、コア11の回転とヒータ12を止めてコア11
を冷却した後、作製された金属製シームレスベルト20を
コア11から取り外す。
This cutting is performed until the thickness of the seamless material 21 reaches t0, which is the desired thickness of the belt 20, thereby producing a metal seamless belt 20 having an outer diameter db0 and an inner diameter db1. Thereafter, the rotation of the core 11 and the heater 12 are stopped, and the core 11
After cooling, the produced metal seamless belt 20 is removed from the core 11.

【0020】なお、得られた金属製シームレスベルト20
の表面には、窒化処理、溶射処理による硬化層の形成、
電解による硬質クロムメッキ処理、等を施しておいても
良い。また、前記実施形態では、コア11にヒータ12を設
け、加熱状態で熱膨張させてシームレス素材21をコア11
に密着したが、コア11に冷却手段を設け、冷却状態でコ
ア11を通常径より収縮させてシームレス素材21を装着
し、常温に戻った際にシームレス素材21をコア11に密着
するようにしてもよい。
The obtained metal seamless belt 20
The surface of the, nitriding treatment, formation of a hardened layer by thermal spraying treatment,
Hard chrome plating by electrolysis may be performed. Further, in the above-described embodiment, the heater 12 is provided on the core 11, and the seamless material 21 is thermally expanded in a heated state to convert the seamless material 21 into the core 11.
Although the core 11 is provided with a cooling means, the core 11 is contracted from a normal diameter in a cooled state, and the seamless material 21 is attached, and when the temperature returns to room temperature, the seamless material 21 is brought into close contact with the core 11. Is also good.

【0021】[0021]

【実施例】[実施例1]前記実施形態において、具体的
条件を下記の通りとして金属製シームレスベルト20を製
造した。遠心鋳造法により、18Ni175級(175級は曲げ応
力限界の程度を示す)マルエージング鋼よりなる円筒状
素材22を作製した(内径db2≒900mm、外径db3≒1000m
m、周面幅(中心軸方向の長さ)=1000mm)。次に、こ
の円筒状素材22の内周面をホーニング加工して内径db1=
950.0mmのシームレス素材21とした。
[Example 1] In the above embodiment, a metal seamless belt 20 was manufactured under specific conditions as follows. By centrifugal casting, a cylindrical material 22 made of 18Ni175 grade (175 grade indicates the limit of bending stress) maraging steel was manufactured (inner diameter db2 ≒ 900mm, outer diameter db3 ≒ 1000m)
m, peripheral surface width (length in the central axis direction) = 1000 mm). Next, the inner peripheral surface of the cylindrical material 22 is honed and the inner diameter db1 =
950.0 mm seamless material 21 was used.

【0022】次に、このシームレス素材21を常温でコア
11に装着した。コア11は、アルミニウム合金製であり、
常温時の外径dc1は949.5mm、カートリッジヒータ12を収
容する部分の内径は910mm、周面幅は1500mmである。そ
して、シームレス素材21を装着したコア11を装置13に取
付け、ヒータ12を加熱してコア11の表面温度を80℃と
し、シームレス素材21をコア11の外周面に密着した。
Next, this seamless material 21 is cored at room temperature.
I attached it to 11. The core 11 is made of an aluminum alloy,
At normal temperature, the outer diameter dc1 is 949.5 mm, the inner diameter of the portion accommodating the cartridge heater 12 is 910 mm, and the peripheral surface width is 1500 mm. Then, the core 11 on which the seamless material 21 was mounted was attached to the device 13, the heater 12 was heated to make the surface temperature of the core 11 80 ° C., and the seamless material 21 was brought into close contact with the outer peripheral surface of the core 11.

【0023】この状態で、コア11を回転させ、シームレ
ス素材21の外周面を切削し、外径を952.0mmとした。そ
して、コア11の表面温度Tを数式1に従って加熱し、更
にシームレス素材21の外周面を切削して金属製シームレ
スベルト20を作製した。なお、数式1において、tはシ
ームレス素材21の厚さ(t<2mm)である。
In this state, the core 11 was rotated to cut the outer peripheral surface of the seamless material 21 so that the outer diameter was 952.0 mm. Then, the surface temperature T of the core 11 was heated in accordance with Equation 1, and the outer peripheral surface of the seamless material 21 was further cut to produce a metal seamless belt 20. In Equation 1, t is the thickness of the seamless material 21 (t <2 mm).

【0024】[0024]

【数1】T=-25t+130[Equation 1] T = -25t + 130

【0025】コア11を常温まで冷却させ、金属製シーム
レスベルト20を取り出した。そして、従来法により、表
面の研削研磨を行い、鏡面ベルトとした。得られた鏡面
仕上げ金属製シームレスベルト20は、外周の長さが4500
mm、幅が1500mm、厚さが0.6mmであった。
The core 11 was cooled to room temperature, and the metal seamless belt 20 was taken out. Then, the surface was ground and polished by a conventional method to obtain a mirror belt. The resulting mirror-finished metal seamless belt 20 has an outer circumference of 4500
mm, the width was 1500 mm, and the thickness was 0.6 mm.

【0026】[実施例2]前記実施形態において、金属
製シームレス部材を金属製シームレススリーブとして、
実施例1と同様の条件で金属製シームレススリーブを製
造した。得られたシームレス金属スリーブは、外径が40
0mm、面長が1500mm、厚さが0.3mmであった。
Example 2 In the above embodiment, the metal seamless member was a metal seamless sleeve.
A metal seamless sleeve was manufactured under the same conditions as in Example 1. The resulting seamless metal sleeve has an outer diameter of 40
The thickness was 0 mm, the surface length was 1500 mm, and the thickness was 0.3 mm.

【0027】[特性の測定]上記実施例1と2によって
得られたシームレスベルトとシームレススリーブに対し
て、回転疲労試験(全応力80kg/mm2)を行った。その結
果、実施例1と2は、いずれも疲労寿命は、1.0×107
以上であり、充分な疲労強度を有していた。また、この
試験中、ベルト又はスリーブの破断やクラックの発生は
見られなかった。
[Measurement of Characteristics] The seamless belt and the seamless sleeve obtained in Examples 1 and 2 were subjected to a rotational fatigue test (total stress of 80 kg / mm 2 ). As a result, both Examples 1 and 2 had a fatigue life of 1.0 × 10 7 times or more, and had sufficient fatigue strength. During the test, no breakage or cracking of the belt or sleeve was observed.

【0028】[0028]

【発明の効果】本発明に係る金属製シームレス部材の製
造方法によれば、マルエージング鋼よりなるため、疲労
強度の向上したシームレス部材が得られる。
According to the method of manufacturing a metal seamless member according to the present invention, a seamless member having improved fatigue strength can be obtained because the member is made of maraging steel.

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

【図1】本発明の一実施形態に係る金属製シームレス部
材の製造方法において使用する装置の要部斜視図であ
る。
FIG. 1 is a perspective view of a main part of an apparatus used in a method for manufacturing a metal seamless member according to an embodiment of the present invention.

【図2】前記実施形態の装置を示す側面図である。FIG. 2 is a side view showing the device of the embodiment.

【図3】前記実施形態の円筒状素材の側面図である。FIG. 3 is a side view of the cylindrical material of the embodiment.

【図4】前記実施形態のシームレス素材の側面図であ
る。
FIG. 4 is a side view of the seamless material of the embodiment.

【図5】前記実施形態の金属製シームレス部材の側面図
である。
FIG. 5 is a side view of the metal seamless member of the embodiment.

【符号の説明】[Explanation of symbols]

11 コア 12 ヒータ 14 切削工具 20 金属製シームレス部材 21 シームレス素材 22 円筒状素材 11 Core 12 Heater 14 Cutting tool 20 Seamless metal member 21 Seamless material 22 Cylindrical material

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 薄板状の金属材料が環状に連続した金属
製シームレス部材の製造方法であって、 マルエージング鋼よりなる薄板状金属材料が環状に連続
したシームレス素材に対して、そのシームレス素材の外
周面を切削してその厚さが一定の金属製シームレス部材
とすることを特徴とする金属製シームレス部材の製造方
法。
1. A method of manufacturing a metal seamless member in which a sheet-like metal material is annularly continuous, wherein the sheet-like metal material made of maraging steel is annularly continuous. A method for manufacturing a metal seamless member, characterized in that an outer peripheral surface is cut into a metal seamless member having a constant thickness.
【請求項2】 請求項1に記載の金属製シームレス部材
の製造方法において、 外周が円筒面とされ、かつ外周径が前記シームレス素材
の内周径より小さいコアを使用し、このコアの外周面に
前記シームレス素材を装着し、前記コアを加熱膨張させ
て前記コアの外周面を前記シームレス素材の内周面に圧
着し、 この状態で前記シームレス素材の外周面を切削して前記
ベルト全体の厚さが一定の金属製シームレス部材とした
後、 前記コアを冷却収縮させて前記コアから前記金属製シー
ムレス部材を取り外すことを特徴とする金属製シームレ
ス部材の製造方法。
2. The method for manufacturing a metal seamless member according to claim 1, wherein a core having an outer periphery of a cylindrical surface and an outer diameter smaller than an inner diameter of the seamless material is used. The seamless material is mounted on the core, the core is heated and expanded, and the outer peripheral surface of the core is pressed against the inner peripheral surface of the seamless material. A method for manufacturing a metal seamless member, comprising: cooling and shrinking the core after removing the metal seamless member from the core; and removing the metal seamless member from the core.
【請求項3】 請求項1又は2に記載の金属製シームレ
ス部材の製造方法において、前記シームレス素材は、押
出し成形、引抜き成形、鋳造、遠心鋳造、鍛造のいずれ
かにより得られた素材であることを特徴とする金属製シ
ームレス部材の製造方法。
3. The method for manufacturing a metal seamless member according to claim 1, wherein the seamless material is a material obtained by any one of extrusion molding, drawing molding, casting, centrifugal casting, and forging. A method for producing a metal seamless member, characterized in that:
【請求項4】 請求項1〜3のいずれかに記載の金属製
シームレス部材の製造方法において、前記シームレス素
材の切削後の厚さが50μm〜2mmであることを特徴とす
る金属製シームレス部材の製造方法。
4. The method for manufacturing a metal seamless member according to claim 1, wherein the thickness of the seamless material after cutting is 50 μm to 2 mm. Production method.
JP4938198A 1998-03-02 1998-03-02 Manufacture of metallic seamless member Withdrawn JPH11245101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4938198A JPH11245101A (en) 1998-03-02 1998-03-02 Manufacture of metallic seamless member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4938198A JPH11245101A (en) 1998-03-02 1998-03-02 Manufacture of metallic seamless member

Publications (1)

Publication Number Publication Date
JPH11245101A true JPH11245101A (en) 1999-09-14

Family

ID=12829454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4938198A Withdrawn JPH11245101A (en) 1998-03-02 1998-03-02 Manufacture of metallic seamless member

Country Status (1)

Country Link
JP (1) JPH11245101A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151842A (en) * 2011-01-27 2011-08-17 唐山冶金锯片有限公司 Process method for turning inner hole and outer diameter of saw bit with small or middle diameter and free of fabrication hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151842A (en) * 2011-01-27 2011-08-17 唐山冶金锯片有限公司 Process method for turning inner hole and outer diameter of saw bit with small or middle diameter and free of fabrication hole

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