JP2015169249A5 - - Google Patents
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- JP2015169249A5 JP2015169249A5 JP2014043753A JP2014043753A JP2015169249A5 JP 2015169249 A5 JP2015169249 A5 JP 2015169249A5 JP 2014043753 A JP2014043753 A JP 2014043753A JP 2014043753 A JP2014043753 A JP 2014043753A JP 2015169249 A5 JP2015169249 A5 JP 2015169249A5
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- steel
- ring according
- nominal diameter
- cylindrical material
- 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.)
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- 239000000463 material Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005242 forging Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 6
- 230000002093 peripheral Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 229910000639 Spring steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- TWXTWZIUMCFMSG-UHFFFAOYSA-N nitride(3-) Chemical compound [N-3] TWXTWZIUMCFMSG-UHFFFAOYSA-N 0.000 claims 2
- 238000007747 plating Methods 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 238000007733 ion plating Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Description
また、前記ピストンリングの母材に用いられる鋼は、炭素鋼、低合金鋼、バネ鋼、軸受鋼、マルテンサイト系ステンレス鋼から選択された鋼であることが好ましくい。さらに、前記ピストンリングは、周方向にファイバーフロー組織を有するリング素材から製造されることが好ましく、その母材は190 GPa以上のヤング率を有することが好ましい。
The steel used for the base material of the piston ring is preferably a steel selected from carbon steel, low alloy steel, spring steel, bearing steel, and martensitic stainless steel. Furthermore, the piston ring is preferably manufactured from a ring material having a fiber flow structure in the circumferential direction, and the base material preferably has a Young's modulus of 190 GPa or more.
前記ピストンリングを製造する方法は、所定の長さに切断された円柱状鋼素材を加熱し、プレス成形によって円板状成形体に据込み加工する第１の熱間鍛造工程と、前記円板状成形体からコアポンチにより中央部に凹部を形成し穴開け加工して第１の円筒状素材に加工する第２の熱間鍛造工程と、前記第１の円筒状素材からリングローリングミルにより拡径した第２の円筒状素材に加工する第３の熱間加工工程と、前記第２の円筒状素材からピストンリングに加工する機械加工工程を含むことが好ましい。さらに、前記ピストンリングが軸に直角な断面で非円形形状を有するように、前記第３の熱間鍛造工程の後に、前記第２の円筒状素材を軸に直角な方向にプレス成形することが好ましい。
The method of manufacturing the piston ring includes: a first hot forging step in which a columnar steel material cut to a predetermined length is heated, and the disk is formed by press forming; A second hot forging step in which a concave portion is formed in the central portion by a core punch from the shaped molded body and drilled to form a first cylindrical material, and the diameter is expanded from the first cylindrical material by a ring rolling mill It is preferable to include a third hot working process for processing the second cylindrical material and a machining process for processing the second cylindrical material into a piston ring. Further, after the third hot forging step, the second cylindrical material may be press-molded in a direction perpendicular to the axis so that the piston ring has a non-circular shape with a cross section perpendicular to the axis. preferable.
上記のリングローリング加工により製造した第２の円筒状素材(6,12)は、機械加工工程によりピストンリングに加工される。この機械加工工程には、例えば、外周旋削加工、内周旋削加工、端面旋削加工、突切加工又は切断加工、側面研削加工、合口切断加工、合口フライス加工、外周カムならい旋削加工、外周研磨加工、外周バフ研磨加工、さらには、オイルリングのオイル穴加工、等が含まれる。 The second cylindrical material (6, 12) produced by the ring rolling process is processed into a piston ring by a machining process . This machining process includes, for example, outer peripheral turning, inner peripheral turning, end face turning, parting or cutting, side grinding, joint cutting, joint milling, peripheral cam profile turning, peripheral polishing, Peripheral buffing processing, and further, oil ring oil hole processing and the like are included.
Claims (11)
1×10-2 < h1/d1 < 1.8×10-2
の関係を満たすことを特徴とするピストンリング。 A piston ring having a nominal diameter (d1) of 200 mm or more, wherein the base material of the piston ring is steel, and the width (h1) and the nominal diameter (d1) are
1 × 10 -2 <h1 / d1 <1.8 × 10 -2
Piston ring characterized by satisfying the relationship
2×10-2 < a1/d1 < 2.8×10-2
の関係を満たすことを特徴とするピストンリング。 The piston ring according to claim 1, wherein the thickness (a1) and the nominal diameter (d1) are
2 × 10 -2 <a1 / d1 <2.8 × 10 -2
Piston ring characterized by satisfying the relationship
2×10-4 < h1×a1/(d1)2 < 5×10-4
の関係を満たすことを特徴とするピストンリング。 The piston ring according to claim 1 or 2, wherein the width (h1), the thickness (a1), and the nominal diameter (d1) are:
2 × 10 -4 <h1 × a1 / (d1) 2 <5 × 10 -4
Piston ring characterized by satisfying the relationship
11. The method of manufacturing a piston ring according to claim 10 , wherein the second cylindrical material is provided after the third hot forging step so that the piston ring has a non-circular shape in a cross section perpendicular to the axis. A method characterized in that press molding is performed in a direction perpendicular to the axis.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014043753A JP6475416B2 (en) | 2014-03-06 | 2014-03-06 | Piston ring and manufacturing method thereof |
| CN201710243544.4A CN107255053B (en) | 2013-06-07 | 2014-06-05 | Piston ring raw material |
| EP14807123.6A EP3006787A4 (en) | 2013-06-07 | 2014-06-05 | Piston ring, raw material therefor, and production method for both |
| KR1020167000225A KR20160029793A (en) | 2013-06-07 | 2014-06-05 | Piston ring, raw material therefor, and production method for both |
| CN201710243543.XA CN107262641A (en) | 2013-06-07 | 2014-06-05 | The manufacture method of piston ring |
| CN201480030692.2A CN105283697B (en) | 2013-06-07 | 2014-06-05 | Piston ring and its raw material and their manufacture method |
| CN201710243454.5A CN107269836A (en) | 2013-06-07 | 2014-06-05 | Piston ring raw material |
| PCT/JP2014/065010 WO2014196614A1 (en) | 2013-06-07 | 2014-06-05 | Piston ring, raw material therefor, and production method for both |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014043753A JP6475416B2 (en) | 2014-03-06 | 2014-03-06 | Piston ring and manufacturing method thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2015169249A JP2015169249A (en) | 2015-09-28 |
| JP2015169249A5 true JP2015169249A5 (en) | 2017-03-30 |
| JP6475416B2 JP6475416B2 (en) | 2019-02-27 |
Family
ID=54202182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014043753A Active JP6475416B2 (en) | 2013-06-07 | 2014-03-06 | Piston ring and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6475416B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835674B (en) * | 2019-10-14 | 2021-04-27 | 攀钢集团江油长城特殊钢有限公司 | Forging method of tungsten-containing high-chromium martensitic stainless steel |
| CN112658612B (en) * | 2020-12-17 | 2022-04-05 | 哈尔滨电气动力装备有限公司 | Manufacturing and detecting process method of nuclear main pump piston ring of nuclear power station |
| CN113977363B (en) * | 2021-11-22 | 2023-09-22 | 中国航发贵州黎阳航空动力有限公司 | Processing method of high-precision planeness and high-grade roughness plane |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63237819A (en) * | 1987-03-27 | 1988-10-04 | Riken Corp | Manufacture of inside bevel ring |
| JPH02217667A (en) * | 1989-02-17 | 1990-08-30 | Honda Motor Co Ltd | Fiber-reinforced piston ring for internal combustion engine |
| JPH06313482A (en) * | 1991-02-19 | 1994-11-08 | Riken Corp | Piston ring |
| JPH04105262U (en) * | 1991-02-19 | 1992-09-10 | 株式会社リケン | piston ring |
| JP2003254157A (en) * | 2002-03-05 | 2003-09-10 | Nippon Piston Ring Co Ltd | Piston ring |
| JP2004069048A (en) * | 2002-06-14 | 2004-03-04 | Riken Corp | Piston ring and method of manufacturing the same |
-
2014
- 2014-03-06 JP JP2014043753A patent/JP6475416B2/en active Active
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