Effect of Lubricant on Lifetime of Au-plated Slip-Ring and Ag-Pd-Cu Brush System for Small Electric Power-2-
スポンサーリンク
概要
- 論文の詳細を見る
The authors have been investigating degradation process of Au plated slip ring and Ag-Pd-Cu brush system. In almost all cases the lifetime of the sliding system ends, when Au plating layer is worn out, the ring surface is oxidized to be black in color and contact resistance becomes very high. Further, the lifetime is very short without lubricant. So, the lubricant is very effective to make the lifetime longer. However, even with lubricant the lifetime is varied from about 1000 hours to almost 7000 hours in the past experiments. It is an important issue how the lubricant works on the lifetime of the system. In this paper the effect of lubricant on the degradation process of contact resistance is focused on. In the past tests the lubricant is supplied only once before the test. In this test the lubricant is regularly supplied almost every 1000 operation hours. Consequently, the operation more than 9000 hours is realized, which is the longest among tests so far. In addition the contact voltage drop stays almost constant around 50mV and after that contact voltage drop increase gradually until 5000 hours. According to the Element Analysis after the test the Ni base plating layer is totally exposed in many tracks. It means that the Au plating layer is gradually worn out probably at the stage of increasing voltage drop. In the previous tests the lifetime ended even when the Ni plating layer remained. So, the reason of long operation in this test is guessed to be that the lubricant not only decreases wear of ring and brush, but also suppresses oxidation of the Ni layer.
- 2012-11-23
著者
-
Ueno Takahiro
Nippon Inst. Technol. Saitama Jpn
-
Sawa Koichiro
Nippon Inst. Of Technol. Saitama‐ken Jpn
-
KITAJIMA Hideki
Nippon Institute of Technology
関連論文
- Influence of Surface Finish Processing on Contact Voltage Drop of Sliding Contact(Session 2 -Sliding Contact-)
- The Relationship between Contact Resistance and Frictional Coefficient under High Current Sliding Contact(Session 2 -Sliding Contact-)
- Brush Sliding Contact Voltage Deviation Analysis based on the Evaluation of Displacement Excited Vibration caused by Collector Ring Profile Distortion : for Turbine Generators & Traction Motors(Session 2 -Sliding Contact-)
- Research of high reliability of noble metal slip-ring for supply of small electric power
- Influence of Voltage on Arc Duration and Electrode Mass Change of AgNi Contacts for Electromagnetic Contactors
- A Relation between Commutator Erosion and Commutation Arc for DC Motor
- A Study on Wear of Carbon Flat Commutator and Brush of DC Motor for Automotive Fuel Pump
- Effect of Inert Gas on Surface Film Formation and on Voltage Drop of Sliding Contacts(Recent Development of Electro-Mechanical Devices (IS-EMD 2002))
- An Effect of Inert Gas on Surface Film Formation and Voltage Drop of Sliding Contacts (国際セッションIS-EMD2002〔英文〕)
- Effect of Inert Gas on Surface Film Formation and on Voltage Drop of Sliding Contacts
- Influence of Surface Roughness on Contact Voltage Drop of Sliding Contacts (国際セッションIS--EMD 2003) -- (Session 3 Sliding contacts and connectors)
- Influence of Surface Roughness on Contact Voltage Drop of Sliding Contacts
- Relation between ambient temperature and contact voltage drop of sliding contacts(Session 7 : Contact Phenomena)
- Relationship between Contact Voltage Drop and Frictional Coefficient under High-current Sliding Contact
- Influence of Surface Finish Processing on Contact Voltage Drop in Cu/C Electrical Sliding Contacts
- A study on influence of surrounding atmosphere to gaseous phase transition in break arc
- A Study on Wear of Brush and Carbon Flat Commutator of DC Motor for Automotive Fuel Pump
- Research of high reliability of noble metal slip-ring for supply of small electric power
- Electrode Mass Change of AgNi Contacts for Electromagnetic Contactor : Influence of Voltage when only Break Arc is Generated
- An experiment on carbon Commutator and Brush Wear by Arc Discharge
- Effect of Lubricant on Lifetime of Au-Plated Slip-Ring and Ag-Pd-Cu Brush System for Small Electric Power
- Evaluation of Basic Dynamical Parameters in Printed Circuit Board — Mass, Force, and Acceleration —
- Effect of Lubricant on Lifetime of Au-plated Slip-Ring and Ag-Pd-Cu Brush System for Small Electric Power-2-
- Arc Erosion of Carbon Contacts in Bio-fuels for Automobile
- Effect of Lubricant on Lifetime of Au-Plated Slip-Ring and Ag-Pd-Cu Brush System for Small Electric Power