WO2007040161A1 - 放電表面処理用電極及び放電表面処理方法並びに被膜 - Google Patents
放電表面処理用電極及び放電表面処理方法並びに被膜 Download PDFInfo
- Publication number
- WO2007040161A1 WO2007040161A1 PCT/JP2006/319404 JP2006319404W WO2007040161A1 WO 2007040161 A1 WO2007040161 A1 WO 2007040161A1 JP 2006319404 W JP2006319404 W JP 2006319404W WO 2007040161 A1 WO2007040161 A1 WO 2007040161A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- discharge
- surface treatment
- powder
- molded body
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32532—Electrodes
- H01J37/3255—Material
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Definitions
- This reactive film is a solid lubricating film with low shearing properties such as iron sulfide, iron phosphate, salted iron and iron, where active elements such as phosphorus and chlorine added to the lubricating oil undergo a chemical reaction due to frictional heat generation. Abrasion can be suppressed.
- Japanese Patent Application Laid-Open No. 7-70761 uses a discharge surface treatment electrode obtained by compression molding to a desired shape by adding A1 powder as a binding metal to a single powder of a metal that is easily carbonized or a mixed powder of two or more kinds.
- the surface treatment is performed in a machining fluid that generates carbon by being decomposed by discharge of petroleum, kerosene, etc.
- Disclosed is a technology that forms a surface layer of mixed carbides and electrode materials on the surface of the base material A and A1 alloy! Speak.
- JP-A-7-70761 a metal which is easily carbonized is carbonized by electric discharge to form a film made of a hard carbide, and the A1 powder is soft and easily carbonized due to its characteristics.
- the film used as a binder when molding metal powders the strength of the film significantly decreases as the proportion of soft materials such as A1 increases.
- the amount of A1 powder contained in the electrode is suppressed as much as possible, and the weight ratio is 64 wt% or less!
- Ni, Fe, Al, Cu, Zn, etc. are cited as materials that do not form carbides.
- Patent Document 1 Japanese Patent Laid-Open No. 7-70761
- FIG. 1 shows a process for manufacturing an electrode for discharge surface treatment in the present embodiment.
- FIG. 2 is a diagram showing the relationship between the molding pressure when an electrode is manufactured with Zn powder having an average particle size of 2 / zm and the resistance of the electrode by the four-probe method defined in JIS K 7194.
- the powder and powder can be metal-bonded only by the pressure of the press, so the electrode has sufficient strength without heating, but the electrode is made with Cr powder.
- the press alone is not strong enough, so it is necessary to heat-treat at 300 ° C to 500 ° C after pressing.
- Figure 2 shows the relationship between the electrode resistance by the four-probe method specified in JIS K 7194, which determines the resistance by measuring the potential difference between the two probes.
- Fig. 3 shows the relationship of Zn content by EDS (Energy-Dispersive X-ray Spectroscopy) on the coating surface when the surface treatment is applied.
- the amount of Zn was measured with the observation area set to 200 times the surface of the coating, and the acceleration voltage was 15 kV. Analysis by EDS is detected including a certain depth (several / z m) just on the outermost surface of the coating. For this reason, a large amount of Fe, which is a component of the subject S45C below the Zn coating on the surface, is detected.
- the amount of Zn which is a coating
- the amount of Fe decreases. This indicates that the thickness of the Zn film has increased, and that the Zn deposit has increased.
- FIG. 5 shows a cross-sectional photograph and a line analysis result of a Zn film formed on the SCM using a 0.02 ⁇ electrode with a peak current of 5 A and a discharge time of 0.5 ⁇ s.
- Fe which is the main component of the object to be coated, decreases as it goes to the film, and Zn in the film forms a mixed layer that decreases toward the object to be coated. It can be seen that such a film formed by the discharge surface treatment does not peel off from the object to be worked.
- the film thickness is about 2 ⁇ m including the diffusion layer.
- the surface hardness of the coating can be controlled by adjusting the discharge current and the discharge time. Therefore, since it can be made to be of the same level as the hardness of the mating material, both members are not worn, and the durability and reliability of the members can be improved.
- the Zn film is not sufficiently formed and the surface of the workpiece is exposed in some places. If the exposure of the surface of the workpiece increases, a reaction film of Zn is formed, and the proportion of the region increases. Therefore, the amount of wear is increased compared to the case where the entire surface is covered with the Zn film, and the reaction film is increased. The effect of decreases.
- the surface hardness of the film with a test load of 10 gf was 940 HV
- the Zn content by EDS with an acceleration voltage of 15 kV was 10.0%.
- the surface roughness of the coating is also important when utilizing the characteristics of the reaction film, such as reducing the friction coefficient and suppressing wear.
- Ra 1.0 m or less is better considering the actual usage conditions.
- a solid metal electrode made of the same material as the coating is used, and the processing surface of the electrode is opposed to the coating in parallel.
- the surface roughness Ra of the film under the above conditions is about 0.4 / zm.
- raw material of S45C steel about 300 HV was used after nitriding.
- the amount of TiC mixed is further increased from 10 wt%, the amount of TiC contained in the coating increases, and the coating hardness increases, and at the same time, the amount of TiC increases, making it impossible to form a reaction film. like this In the coating, the mating material is worn.
- wax When wax is used, it is necessary to remove the wax from the green compact, and the wax is removed by heating to a temperature higher than the melting point of the wax.
- an electrode for discharge surface treatment having a resistance of 0.002 ⁇ or more was manufactured, and a Zn film could be formed.
- a Zn film having a surface roughness Ra of 1 m or less and a surface hardness of 200 HV or more could be formed.
- the coating film according to the present invention has a high abrasion resistance that does not peel off, and is a coating film that can be a reaction film made of a phosphide or a sulfurized product in a lubricating oil containing phosphorus. form Since these coating films can form films having different surface hardnesses, they are particularly suitable for application to sliding portions in the boundary lubrication region.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007507609A JP5092742B2 (ja) | 2005-09-30 | 2006-09-29 | 放電表面処理方法及び被膜 |
DE112006002588T DE112006002588T5 (de) | 2005-09-30 | 2006-09-29 | Elektrode für eine Entladungsoberflächenbehandlung, Entladungsoberflächenbehandlungsverfahren und Film |
US12/088,632 US20090246463A1 (en) | 2005-09-30 | 2006-09-29 | Electrode for discharge surface treatment, discharge surface treatment method, film, and film forming method |
CN200680036082.9A CN101278070B (zh) | 2005-09-30 | 2006-09-29 | 放电表面处理用电极、放电表面处理方法以及覆膜 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/018111 WO2007043102A1 (ja) | 2005-09-30 | 2005-09-30 | 放電表面処理用電極及び放電表面処理方法並びに被膜 |
JPPCT/JP2005/018111 | 2005-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007040161A1 true WO2007040161A1 (ja) | 2007-04-12 |
Family
ID=37906203
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018111 WO2007043102A1 (ja) | 2005-09-30 | 2005-09-30 | 放電表面処理用電極及び放電表面処理方法並びに被膜 |
PCT/JP2006/319404 WO2007040161A1 (ja) | 2005-09-30 | 2006-09-29 | 放電表面処理用電極及び放電表面処理方法並びに被膜 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018111 WO2007043102A1 (ja) | 2005-09-30 | 2005-09-30 | 放電表面処理用電極及び放電表面処理方法並びに被膜 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090246463A1 (ja) |
CN (1) | CN101278070B (ja) |
DE (1) | DE112006002588T5 (ja) |
WO (2) | WO2007043102A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100320426A1 (en) * | 2008-02-06 | 2010-12-23 | National University Corp. Kumamoto University | Method of producing group ii-vi compound semiconductor, method of producing group ii-vi compound semiconductor phosphor, and hexagonal group ii-vi compound semiconductor |
CN103540933A (zh) * | 2013-09-30 | 2014-01-29 | 华北水利水电大学 | 一种Cr-Ni-Mo系不锈钢表面功能梯度陶瓷耐磨涂层的制备方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010128536A1 (ja) * | 2009-05-07 | 2010-11-11 | 三菱電機株式会社 | 放電表面処理方法および放電表面処理被膜の形成方法 |
WO2014002188A1 (ja) | 2012-06-26 | 2014-01-03 | 三菱電機株式会社 | 放電表面処理装置および放電表面処理方法 |
JP6114007B2 (ja) * | 2012-11-08 | 2017-04-12 | Ntn株式会社 | 転がり軸受用保持器および転がり軸受 |
CN110923636B (zh) * | 2019-11-29 | 2020-11-20 | 南京航空航天大学 | γ-TiAl合金表面电子束复合等离子合金化处理方法 |
CN111394722B (zh) * | 2020-03-25 | 2022-03-25 | 广东工业大学 | 一种多尺度碳化钛颗粒增强铜基复合涂层及其制备方法和应用 |
Citations (6)
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JPS63145766A (ja) * | 1986-07-17 | 1988-06-17 | Kawasaki Steel Corp | 密着性、耐食性および均質性に富む表面被膜をそなえる大表面積鋼板の製造方法 |
WO2000029158A1 (fr) * | 1998-11-13 | 2000-05-25 | Mitsubishi Denki Kabushiki Kaisha | Procede de traitement de surface par decharge et electrode utilisee pour ce traitement |
JP2001316686A (ja) * | 2000-04-28 | 2001-11-16 | Shojiro Miyake | 硬質炭素皮膜摺動部材 |
JP2004232045A (ja) * | 2003-01-31 | 2004-08-19 | Asahi Glass Co Ltd | スパッタリング方法 |
JP2004346363A (ja) * | 2003-05-21 | 2004-12-09 | Nippon Steel Corp | シルバーメタリック調意匠性めっき鋼板及びその製造方法 |
JP2005213561A (ja) * | 2004-01-29 | 2005-08-11 | Mitsubishi Electric Corp | 放電表面処理方法および放電表面処理装置。 |
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EP0834594B1 (en) * | 1995-05-18 | 2004-11-10 | Asahi Glass Company Ltd. | Process for producing sputtering target |
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JPH11125257A (ja) * | 1997-08-19 | 1999-05-11 | Nippon Seiko Kk | 転がり軸受装置 |
CH693767A5 (de) * | 1998-03-11 | 2004-01-30 | Mitsubishi Electric Corp | Gruenlingelektrode fuer Funkenoberflaechenbehandlung und Methode zum Herstellen der Gruenlingelektrode fuer Funkenoberflaechenbehandlung. |
JP2000071126A (ja) * | 1998-08-27 | 2000-03-07 | Mitsubishi Electric Corp | 放電表面処理方法および放電表面処理装置 |
KR100411455B1 (ko) * | 1998-11-13 | 2003-12-18 | 미쓰비시덴키 가부시키가이샤 | 방전표면처리방법 및 방전표면처리용 전극 |
JP2002295473A (ja) * | 2001-03-28 | 2002-10-09 | Senju Metal Ind Co Ltd | 鉛フリージャーナル軸受 |
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EP1640476B1 (en) | 2003-06-05 | 2012-09-12 | Mitsubishi Denki Kabushiki Kaisha | Discharge surface treating electrode, discharge surface treating device and discharge surface treating method |
JP4244329B2 (ja) * | 2004-04-08 | 2009-03-25 | 株式会社神戸製鋼所 | 境界潤滑膜の塑性変形硬度測定方法 |
-
2005
- 2005-09-30 WO PCT/JP2005/018111 patent/WO2007043102A1/ja active Application Filing
-
2006
- 2006-09-29 DE DE112006002588T patent/DE112006002588T5/de not_active Withdrawn
- 2006-09-29 CN CN200680036082.9A patent/CN101278070B/zh active Active
- 2006-09-29 US US12/088,632 patent/US20090246463A1/en not_active Abandoned
- 2006-09-29 WO PCT/JP2006/319404 patent/WO2007040161A1/ja active Application Filing
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JPS63145766A (ja) * | 1986-07-17 | 1988-06-17 | Kawasaki Steel Corp | 密着性、耐食性および均質性に富む表面被膜をそなえる大表面積鋼板の製造方法 |
WO2000029158A1 (fr) * | 1998-11-13 | 2000-05-25 | Mitsubishi Denki Kabushiki Kaisha | Procede de traitement de surface par decharge et electrode utilisee pour ce traitement |
JP2001316686A (ja) * | 2000-04-28 | 2001-11-16 | Shojiro Miyake | 硬質炭素皮膜摺動部材 |
JP2004232045A (ja) * | 2003-01-31 | 2004-08-19 | Asahi Glass Co Ltd | スパッタリング方法 |
JP2004346363A (ja) * | 2003-05-21 | 2004-12-09 | Nippon Steel Corp | シルバーメタリック調意匠性めっき鋼板及びその製造方法 |
JP2005213561A (ja) * | 2004-01-29 | 2005-08-11 | Mitsubishi Electric Corp | 放電表面処理方法および放電表面処理装置。 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100320426A1 (en) * | 2008-02-06 | 2010-12-23 | National University Corp. Kumamoto University | Method of producing group ii-vi compound semiconductor, method of producing group ii-vi compound semiconductor phosphor, and hexagonal group ii-vi compound semiconductor |
US8551363B2 (en) * | 2008-02-06 | 2013-10-08 | National University Corporation Kumamoto University | Method of producing group II-VI compound semiconductor, method of producing group II-VI compound semiconductor phosphor, and hexagonal group II-VI compound semiconductor |
CN103540933A (zh) * | 2013-09-30 | 2014-01-29 | 华北水利水电大学 | 一种Cr-Ni-Mo系不锈钢表面功能梯度陶瓷耐磨涂层的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101278070A (zh) | 2008-10-01 |
CN101278070B (zh) | 2015-09-30 |
WO2007043102A1 (ja) | 2007-04-19 |
DE112006002588T5 (de) | 2008-08-21 |
US20090246463A1 (en) | 2009-10-01 |
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