WO2001025752A1 - Tribometre a disque avec chauffage par induction - Google Patents
Tribometre a disque avec chauffage par induction Download PDFInfo
- Publication number
- WO2001025752A1 WO2001025752A1 PCT/FR2000/002743 FR0002743W WO0125752A1 WO 2001025752 A1 WO2001025752 A1 WO 2001025752A1 FR 0002743 W FR0002743 W FR 0002743W WO 0125752 A1 WO0125752 A1 WO 0125752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tribometer
- tribometer according
- supports
- test pieces
- rotary
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/30—Oils, i.e. hydrocarbon liquids for lubricating properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Definitions
- the present invention relates to the field of metrology equipment and more particularly tribo meters.
- Such equipment is intended for the measurement of mechanical, tribological and thermal phenomena occurring between two bodies in motion rubbing against each other, as well as the influence of materials interposed between two bodies in relative motion.
- the general principle of such equipment is well known.
- the tribometer described in French patent FR2660756, for example, is known for a device for improving the evaluation of the performance of a lubricant.
- This device makes it possible to load a moving part on a fixed part in punctual, linear or surface contact in the presence of a lubricant.
- a cylinder acts on one of the parts in contact.
- Force sensors measure the force applied.
- Another French patent FR2685774 describes a device comprising a fixed assembly formed by a box and a first vertical drive electrospindle driving a first disc.
- a mobile assembly includes a second box supporting a second electrospindle which can pivot around an axis of articulation.
- Other tribometers are described in Japanese patents JP1006581, JP06281563 or JP62278427, English GB2232091 or American US4914958.
- Some measurements require that one or both of the test specimens come into contact with each other.
- the problem is that of precise temperature control, and that of maintaining a temperature differential between the two test specimens in contact.
- JP07113735 is certainly known in the state of the art. This document relates to the use of an induction coil, not to ensure the heating of one of the test pieces during a test period by a tribometer, but to denature the material by heating and cooling cycles. Such an application is not satisfactory with regard to the measurements usually performed in tribometry.
- the invention proposes a solution to this problem, making it possible to produce an improved tribometer.
- the invention relates to a disc tribometer for measuring tribological, mechanical and thermal phenomena comprising at least a first rotary support for receiving a test piece and a second rotary support for receiving a second test piece, as well as means for measuring the torque applied to each of said supports, characterized in that it also comprises at least at least one induction coil arranged to heat the test pieces driven in rotation.
- the heating is controlled to ensure a substantially constant temperature during the measurement phase of the tribological parameters, throughout the duration of the measurement. It can also be ordered according to a time trend curve, over a time range corresponding to the duration of the measurement.
- it comprises an induction coil intended to ensure the heating of one of the rotating test pieces only.
- a tribometer according to the invention allows precise regulation of the temperature of one of the test pieces, without disturbing the measurement.
- the induction coil is coaxial with one of the rotary supports.
- the tribometer according to the invention further comprises a pyrometer arranged to capture the thermal radiation produced at the interface of the two test pieces.
- the tribometer comprises an enclosure surrounding the rotary supports, said enclosure being connected to a system for controlling the atmosphere.
- At least one of the rotary supports is driven by a motor supported by a plate balanced by an adjustable load and in that it comprises a sensor for measuring the instantaneous force applied by said load.
- FIG. 1 shows a side view of a tribometer 1 according to the invention
- Figure 2 shows a front view of said tribometer.
- Figures 1 and 2 show schematic views of equipment according to the invention.
- the equipment according to the example described comprises a chassis (1) supporting a first motor (2) driving a shaft (3) ensuring the rotation of a plate (4) comprising a mandrel to receive a first test tube (5).
- This motor (2) is equipped with a speed and / or position sensor, as well as a power sensor measuring the electromotive or counter electromotive force applied to the plate (4).
- the equipment comprises a second motorized assembly constituted by a plate (6) supporting a second motor (7) driving a second shaft (8) perpendicular to the first shaft (3).
- This assembly drives a second plate (9) provided with a mandrel capable of receiving a second test piece (10) coming into linear or point contact with the first test piece (5).
- the two test pieces are driven in relative rotation along perpendicular axes of rotation, at speeds ensuring sliding or, on the contrary, at homologous speeds ensuring contact without sliding.
- the induction loop is oriented along an axis corresponding to the axis of rotation of one of the test pieces. If two induction coils are used, the axes of the two coils will be perpendicular, each corresponding to the axis of rotation of one of the test pieces.
- the plate (6) is pivotally mounted relative to a pivot (11) perpendicular to the two shafts (3, 8).
- a load (12) makes it possible to adjust the bearing force of the second test piece (10) on the first test piece (4).
- the equipment includes an extensometer (20) or a force sensor for measuring the instantaneous force applied to the sample. This force is not constant, and varies in particular according to the inertia of the system.
- the two test pieces are driven so as to create a controllable friction zone.
- the parameters measured make it possible to analyze the tribological phenomena of the materials constituting the test pieces and possibly of the lubrication materials introduced between the test pieces.
- An indicator is formed by the result of a function of the normal force applied to a specimen, and of the tangential force measured.
- the equipment further comprises a high frequency generator (14) supplying an induction loop (15).
- This induction loop surrounds one of the test pieces (10) and ensures its temperature setting and its thermoregulation. It does not cause contact with the test pieces, and therefore does not disturb the measurement.
- Thermoregulation consists, according to one mode of implementation, of keeping only one of the test pieces at a constant temperature.
- the two test pieces are maintained at different constant temperatures, to measure the effect of a temperature differential.
- two pyrometers are provided, for independent measurement of the temperature of each of the samples.
- the heating temperatures are, for certain applications, between 600 and 1200 °.
- the induction coil is formed by a winding of a few turns, 6 in the example described, made of copper wire with a section of 3 mm.
- the coils have a section of 500 mm, to allow the positioning of a test tube of 450 mm section at most.
- the dimensions of the coil can be modified by a person skilled in the art to meet the needs of a measurement.
- the high frequency generator delivers an electrical signal from 30 to 300 kHz at a power of 25 kilowatts.
- test tube supports, the test tubes and the induction loop can be inserted into a sealed enclosure, having shaft passages, to allow the control of
- the equipment also includes an infrared pyrometer (16), and / or thermocouples, measuring the temperature of the contact area.
- the data concerning the torques and absorbed power, the tangential force exerted by the second test piece on the first test piece, as a function of the load (12), the heating power, the measured temperature and possibly other parameters are used by a computer. for the determination of a coefficient of friction of the pair of test pieces.
- the invention can give rise to different variant embodiments. It may include an induction loop for each of the test pieces, or else a cooled support. It may also include a filtering system allowing the analysis of wear debris continuously when operating in lubrication.
- the equipment can also include an additional sample holder for heating test pieces formed of a non-conductive material.
- the sample holder will in this case consist of a receptacle made of an electrically conductive material intended to receive the specimen and to transmit mechanical and thermal stresses to it. This sample holder is secured to one of the rotary supports, so as to ensure the drive of the test piece formed from an insulating or weakly conductive material.
- the rotary supports can be parallel, or perpendicular. In the latter case, it is advantageous for one of the supports to be horizontal, so as to avoid the fall of the debris, which must be taken into account in tribological phenomena.
- the speeds of the two supports can be homologous (that is to say at speeds ensuring a displacement of the two test pieces without sliding) or different, and one of the supports may have a zero rotation speed.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU76717/00A AU7671700A (en) | 1999-10-06 | 2000-10-03 | Induction-heated disc tribometer |
| EP00966269A EP1218721A1 (fr) | 1999-10-06 | 2000-10-03 | Tribometre a disque avec chauffage par induction |
| US10/116,356 US6783272B2 (en) | 1999-10-06 | 2002-04-04 | Induction-heated disc tribometer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9912462A FR2799547B1 (fr) | 1999-10-06 | 1999-10-06 | Tribometre a disque pour la mesure des phenomenes tribologiques |
| FR99/12462 | 1999-10-06 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/116,356 Continuation US6783272B2 (en) | 1999-10-06 | 2002-04-04 | Induction-heated disc tribometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001025752A1 true WO2001025752A1 (fr) | 2001-04-12 |
Family
ID=9550631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2000/002743 Ceased WO2001025752A1 (fr) | 1999-10-06 | 2000-10-03 | Tribometre a disque avec chauffage par induction |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6783272B2 (fr) |
| EP (1) | EP1218721A1 (fr) |
| AU (1) | AU7671700A (fr) |
| FR (1) | FR2799547B1 (fr) |
| WO (1) | WO2001025752A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183418A (zh) * | 2011-03-02 | 2011-09-14 | 华中科技大学 | 一种低维材料微扭转力学性能测试装置 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8944978B2 (en) | 2008-11-03 | 2015-02-03 | David Kristiansen | Ergonomic pull handle and associated exercise methods |
| CN102271768A (zh) | 2008-11-03 | 2011-12-07 | 大卫·克里斯蒂安森 | 人体工学拉手和相关的运动方法 |
| CN107907216B (zh) * | 2017-11-09 | 2019-06-07 | 中国航发湖南动力机械研究所 | 刷式密封动态温度场测量装置 |
| EP3650830B1 (fr) * | 2018-11-08 | 2023-07-19 | Goodrich Actuation Systems SAS | Tribomètre à disque double capable de mouvement réciproque et / ou non-collinéaire |
| CN110595929B (zh) * | 2019-09-18 | 2024-06-18 | 一汽奔腾轿车有限公司 | 一种乘用车开关表面印刷品耐磨性试验装置 |
| CN110823739A (zh) * | 2019-11-06 | 2020-02-21 | 上海卫星装备研究所 | 真空高低温球-盘摩擦磨损试验装置及方法 |
| EP4166927B1 (fr) * | 2021-10-13 | 2024-07-03 | Technicka univerzita v Liberci | Appareil de détermination du coefficient de frottement dynamique d'une textile planaire et/out linéaire et un procédé de détermination du coefficient de frottement dynamique |
| CN116840088A (zh) * | 2023-07-07 | 2023-10-03 | 吉林大学 | 带有支撑的超高温摩擦磨损板状试样加热装置及方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62278427A (ja) * | 1986-05-28 | 1987-12-03 | Hitachi Ltd | 高温摩耗特性評価装置 |
| US4914958A (en) * | 1986-02-14 | 1990-04-10 | Optimol Instruments Gmbh | Apparatus for investigating the behavior of contraform contacts |
| GB2232091A (en) * | 1989-05-25 | 1990-12-05 | Coal Ind | Debris monitoring apparatus |
| FR2685774A1 (fr) * | 1991-12-27 | 1993-07-02 | Europ Propulsion | Tribometre bidisque permettant notamment des vitesses elevees en environnements extremes. |
| JPH06281563A (ja) * | 1993-03-25 | 1994-10-07 | Cosmo Sogo Kenkyusho:Kk | 摩擦試験機のテストピース温度測定装置およびテストピース温度測定方法 |
| JPH07113735A (ja) * | 1993-10-19 | 1995-05-02 | Hitachi Metals Ltd | ヒートクラック発生型高温摩耗試験方法及び同試験装置 |
| JPH1026581A (ja) * | 1996-07-11 | 1998-01-27 | Nippon Soken Inc | 摩擦摩耗試験機 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3535914A (en) * | 1969-02-07 | 1970-10-27 | Goodrich Co B F | Continuous shear dynamometer |
| DE2733099C2 (de) * | 1977-07-22 | 1979-12-13 | Brabender Ohg, 4100 Duisburg | Rotationsviskosimeter |
| JPS6025738B2 (ja) * | 1979-01-08 | 1985-06-20 | 出光興産株式会社 | 自動流動点試験器 |
| JPS5757952A (en) * | 1980-09-20 | 1982-04-07 | Japan Synthetic Rubber Co Ltd | Method and device for converting rotary motion into rotary vibrating motion |
| JPS5828656A (ja) * | 1981-08-14 | 1983-02-19 | Kazuo Makino | 示差熱示差圧粘度同時測定装置 |
| GB8525662D0 (en) * | 1985-10-17 | 1985-11-20 | Deer J J | Induction heating |
| JPH02201138A (ja) * | 1989-01-30 | 1990-08-09 | Sekisui Chem Co Ltd | 摩擦試験装置 |
| GB8921241D0 (en) * | 1989-09-20 | 1989-11-08 | Monsanto Plc | Testing of viscoelastic materials |
| US5163317A (en) * | 1990-03-26 | 1992-11-17 | Bridgestone Corporation | Apparatus for measuring stress of viscoelastic material |
| US5038601A (en) * | 1990-08-15 | 1991-08-13 | General Motors Corporation | Apparatus for testing friction torque transmitting devices |
| US5221713A (en) * | 1991-10-07 | 1993-06-22 | Rohm And Haas Company | Co-microagglomeration of emulsion polymers (encapsulated core/shell additives for pvc) |
| US5187987A (en) * | 1991-11-19 | 1993-02-23 | The Pennsylvania Research Corporation | Bending beam creep test device with piston having a gas bearing |
| JP3340168B2 (ja) * | 1993-01-28 | 2002-11-05 | 横浜ゴム株式会社 | 摩擦試験装置 |
| US6070457A (en) * | 1993-12-17 | 2000-06-06 | Baker Hughes Incorporated | Viscometer |
| CN1196691A (zh) * | 1996-04-30 | 1998-10-21 | 达德国际有限公司 | 稳定离心机转子的装置和方法 |
| US5795990A (en) * | 1997-07-30 | 1998-08-18 | Center For Tribology, Inc. | Method and apparatus for measuring friction and wear characteristics of materials |
| US6666066B1 (en) * | 1998-04-03 | 2003-12-23 | Tetra Gesellschaft für Sensorik, Robotik und Automation mbH | Device for examining friction conditions |
| US6164818A (en) * | 1999-01-21 | 2000-12-26 | Alpha Technologies | Method and apparatus for measuring viscous heating of viscoelastic materials |
| US6401058B1 (en) * | 1999-02-12 | 2002-06-04 | Wayne State University | Reciprocating system for simulating friction and wear |
| US6418776B1 (en) * | 2000-07-24 | 2002-07-16 | Center For Tribology, Inc. | Method and apparatus for measuring friction and wear characteristics of materials |
| US6484567B1 (en) * | 2000-08-03 | 2002-11-26 | Symyx Technologies, Inc. | Rheometer for rapidly measuring small quantity samples |
| US6655980B2 (en) * | 2002-04-10 | 2003-12-02 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having locks |
-
1999
- 1999-10-06 FR FR9912462A patent/FR2799547B1/fr not_active Expired - Fee Related
-
2000
- 2000-10-03 AU AU76717/00A patent/AU7671700A/en not_active Abandoned
- 2000-10-03 WO PCT/FR2000/002743 patent/WO2001025752A1/fr not_active Ceased
- 2000-10-03 EP EP00966269A patent/EP1218721A1/fr not_active Withdrawn
-
2002
- 2002-04-04 US US10/116,356 patent/US6783272B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4914958A (en) * | 1986-02-14 | 1990-04-10 | Optimol Instruments Gmbh | Apparatus for investigating the behavior of contraform contacts |
| JPS62278427A (ja) * | 1986-05-28 | 1987-12-03 | Hitachi Ltd | 高温摩耗特性評価装置 |
| GB2232091A (en) * | 1989-05-25 | 1990-12-05 | Coal Ind | Debris monitoring apparatus |
| FR2685774A1 (fr) * | 1991-12-27 | 1993-07-02 | Europ Propulsion | Tribometre bidisque permettant notamment des vitesses elevees en environnements extremes. |
| JPH06281563A (ja) * | 1993-03-25 | 1994-10-07 | Cosmo Sogo Kenkyusho:Kk | 摩擦試験機のテストピース温度測定装置およびテストピース温度測定方法 |
| JPH07113735A (ja) * | 1993-10-19 | 1995-05-02 | Hitachi Metals Ltd | ヒートクラック発生型高温摩耗試験方法及び同試験装置 |
| JPH1026581A (ja) * | 1996-07-11 | 1998-01-27 | Nippon Soken Inc | 摩擦摩耗試験機 |
Non-Patent Citations (5)
| Title |
|---|
| CATHERIN J -Y: "LA TRIBOLOGIE SE RENOUVELLE A CHAQUE APPLICATION", MESURES REGULATION AUTOMATISME,FR,CFE. PARIS, no. 687, 1 September 1996 (1996-09-01), pages 61 - 63, XP000633277, ISSN: 0755-219X * |
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 163 (P - 703) 18 May 1988 (1988-05-18) * |
| PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28) * |
| PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08 29 September 1995 (1995-09-29) * |
| PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183418A (zh) * | 2011-03-02 | 2011-09-14 | 华中科技大学 | 一种低维材料微扭转力学性能测试装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2799547A1 (fr) | 2001-04-13 |
| US6783272B2 (en) | 2004-08-31 |
| FR2799547B1 (fr) | 2002-05-24 |
| EP1218721A1 (fr) | 2002-07-03 |
| US20030063652A1 (en) | 2003-04-03 |
| AU7671700A (en) | 2001-05-10 |
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