JP7048201B2 - 棒状ワークの熱処理方法および熱処理設備 - Google Patents
棒状ワークの熱処理方法および熱処理設備 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/10—Hardening, e.g. carburizing, carbo-nitriding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2223/00—Surface treatments; Hardening; Coating
- F16C2223/10—Hardening, e.g. carburizing, carbo-nitriding
- F16C2223/18—Hardening, e.g. carburizing, carbo-nitriding with induction hardening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
- Rolling Contact Bearings (AREA)
Description
2 加熱コイル
2A 第1加熱コイル
2B 第2加熱コイル
3 第1高周波電源
4 第2高周波電源
6 回転機構
8 動力伝達機構
10 搬送装置
11 第1軸部材
12 第2軸部材
13 螺旋状の凸部
14 螺旋状溝
15 溝底面
16 ワーク支持部
20 冷却部(冷却装置)
A 熱処理設備
W 棒状ワーク
Claims (6)
- それぞれが断面円形の外周面を有する複数の棒状ワークを、その軸線方向に相互に離間した状態で軸線方向に沿って所定速度で搬送しながら、各棒状ワークを焼入温度に誘導加熱する加熱工程と、該加熱工程から排出された前記棒状ワークを冷却して焼入硬化させる冷却工程と、を含む棒状ワークの熱処理方法であって、
前記棒状ワークが、炭素含有量0.8質量%以上の鋼材からなるころ軸受用のころであり、
前記加熱工程では、第1高周波電源と電気的に接続され、出力が一定に保たれた第1加熱コイルであって軸線方向寸法が前記棒状ワークのそれよりも長寸の前記第1加熱コイルの対向領域を前記棒状ワークが搬送される間に、前記棒状ワークの全体を前記焼入温度以下の所定温度に加熱し、次いで、第2高周波電源と電気的に接続され、出力が一定に保たれた第2加熱コイルであって軸線方向寸法が前記棒状ワークのそれよりも長寸の前記第2加熱コイルの対向領域を前記棒状ワークが搬送される際、前記棒状ワークの全体を前記焼入温度に維持するように加熱することにより、前記棒状ワークの全体を焼入温度に誘導加熱し、
前記冷却工程では、前記第2加熱コイルから排出された前記棒状ワークを冷却液槽に貯留された冷却液に投下することにより、前記棒状ワークを焼入硬化させることを特徴とする棒状ワークの熱処理方法。 - 前記第2加熱コイルが前記第1加熱コイルよりも長寸である請求項1に記載の棒状ワークの熱処理方法。
- 前記加熱工程では、前記棒状ワークを、その軸線回りに回転させながら搬送する請求項1又は2に記載の棒状ワークの熱処理方法。
- 前記加熱工程では、
相互に離間して軸線方向に平行に延び、少なくとも一方が外周に沿って延びた螺旋状の凸部を有するねじ軸からなる第1軸部材及び第2軸部材と、両軸部材を軸線回りに同方向に回転させる回転機構とを備え、
前記凸部によって前記一方の軸部材の外周に画成される螺旋状溝の溝底面と、これに対峙する他方の軸部材の外周面との協働で形成されるワーク支持部であって、前記棒状ワークの外周面を下方側から接触支持する前記ワーク支持部を軸線方向に離間した複数箇所に有する搬送装置により、前記棒状ワークを搬送する請求項1~3の何れか一項に記載の棒状ワークの熱処理方法。 - 前記第1加熱コイルおよび前記第2加熱コイルが、何れも、導電性金属からなる管状体を螺旋状に巻き回した螺旋コイルである請求項1~4の何れか一項に記載の棒状ワークの熱処理方法。
- 断面円形の外周面を有する棒状ワークの全体を焼入温度に誘導加熱する誘導加熱装置と、前記誘導加熱装置から排出された前記棒状ワークを冷却して焼入硬化させる冷却装置と、を含む棒状ワークの熱処理設備であって、
前記棒状ワークが、炭素含有量0.8質量%以上の鋼材からなるころ軸受用のころであり、
前記誘導加熱装置は、前記棒状ワークをその軸線方向に沿って所定速度で搬送する搬送装置と、該搬送装置によって搬送されている前記棒状ワークを誘導加熱する加熱コイルとを備え、
前記搬送装置は、複数の前記棒状ワークを軸線方向に相互に離間した状態で搬送し、
前記加熱コイルは、第1高周波電源と電気的に接続され、軸線方向寸法が前記棒状ワークのそれよりも長寸の第1加熱コイルと、第2高周波電源と電気的に接続され、軸線方向寸法が前記棒状ワークのそれよりも長寸の第2加熱コイルとを軸線方向に連ねて配置してなり、
前記第1加熱コイルは、その対向領域を前記棒状ワークが搬送される間に、前記棒状ワークの全体を前記焼入温度以下の所定温度に加熱する一定出力に設定され、
前記第2加熱コイルは、その対向領域を前記棒状ワークが搬送される際、前記棒状ワークの全体を前記焼入温度に保つ一定出力に設定され、
前記冷却装置は、前記第2加熱コイルから排出された前記棒状ワークが投下される冷却液を貯留した冷却液槽を備えていることを特徴とする棒状ワークの熱処理設備。
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JP2016125716A JP7048201B2 (ja) | 2016-06-24 | 2016-06-24 | 棒状ワークの熱処理方法および熱処理設備 |
EP17815104.9A EP3476954B1 (en) | 2016-06-24 | 2017-05-26 | Heat treatment method of rod-shape workpiece |
PCT/JP2017/019812 WO2017221635A1 (ja) | 2016-06-24 | 2017-05-26 | 棒状ワークの熱処理方法 |
US16/312,368 US10844447B2 (en) | 2016-06-24 | 2017-05-26 | Heat treatment method of rod-shape workpiece |
CN201780038398.XA CN109312417B (zh) | 2016-06-24 | 2017-05-26 | 棒状工件的热处理方法 |
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CN112853074B (zh) * | 2021-01-07 | 2023-05-05 | 黄冈市华窑中晖窑炉有限公司 | 一种筒件热处理用隧道炉 |
CN113621770A (zh) * | 2021-08-13 | 2021-11-09 | 丰县飞洋金属制品有限公司 | 一种半轴淬火装置和应用于该装置的冷却系统及淬火、冷却方法 |
Citations (3)
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DE19827608C1 (de) | 1998-06-20 | 2000-02-24 | Fraunhofer Ges Forschung | Vorrichtung zum Fördern mit Prüfabschnitt |
JP2002145437A (ja) | 2000-11-08 | 2002-05-22 | Yasuhiko Ishii | 搬送装置、加熱脱脂装置及び表面処理剤塗布装置 |
JP2005331005A (ja) | 2004-05-19 | 2005-12-02 | Ntn Corp | 転動体の製造方法および装置 |
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JPS5515531B2 (ja) * | 1972-03-13 | 1980-04-24 | ||
JPS549034A (en) * | 1977-06-22 | 1979-01-23 | Nippon Kokan Kk <Nkk> | Induction heater |
US4552091A (en) * | 1982-05-03 | 1985-11-12 | Darryl Feder | Apparatus for metalizing metal bodies |
JPS59190329A (ja) * | 1983-04-12 | 1984-10-29 | Sumitomo Metal Ind Ltd | 長尺管材焼入設備における搬送制御装置 |
JPH04218621A (ja) * | 1990-05-14 | 1992-08-10 | Chubu Electric Power Co Inc | 長軸材の表面熱処理方法 |
JPH073325A (ja) * | 1993-06-16 | 1995-01-06 | Honda Motor Co Ltd | 成形用素材の加熱装置 |
JP3568343B2 (ja) * | 1997-01-17 | 2004-09-22 | 高周波熱錬株式会社 | 高周波焼入装置 |
JP2012038473A (ja) * | 2010-08-04 | 2012-02-23 | Uchino:Kk | 誘導加熱装置及び誘導加熱方法 |
CN202009508U (zh) | 2011-03-01 | 2011-10-12 | 宝山钢铁股份有限公司 | 圆棒坯料感应加热复合线圈 |
CN103898279A (zh) * | 2012-12-28 | 2014-07-02 | 赫菲斯热处理系统江苏有限公司 | 一种预处理生产线 |
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- 2017-05-26 US US16/312,368 patent/US10844447B2/en active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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DE19827608C1 (de) | 1998-06-20 | 2000-02-24 | Fraunhofer Ges Forschung | Vorrichtung zum Fördern mit Prüfabschnitt |
JP2002145437A (ja) | 2000-11-08 | 2002-05-22 | Yasuhiko Ishii | 搬送装置、加熱脱脂装置及び表面処理剤塗布装置 |
JP2005331005A (ja) | 2004-05-19 | 2005-12-02 | Ntn Corp | 転動体の製造方法および装置 |
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CN109312417A (zh) | 2019-02-05 |
CN109312417B (zh) | 2022-03-04 |
WO2017221635A1 (ja) | 2017-12-28 |
EP3476954A4 (en) | 2020-03-18 |
EP3476954B1 (en) | 2022-08-17 |
US10844447B2 (en) | 2020-11-24 |
JP2017227314A (ja) | 2017-12-28 |
US20190241986A1 (en) | 2019-08-08 |
EP3476954A1 (en) | 2019-05-01 |
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