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A Study on Scoring Resistance of Gears of Biodegradable Synthesis Lubricating Oil

Research Project

Project/Area Number 16560132
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionKure College of Technology

Principal Investigator

KOHNO Masaki  Kure College of Technology, Department of Mechanical Engineering, Professor, 機械工学科, 教授 (20110223)

Co-Investigator(Kenkyū-buntansha) NADANO Hiromasa  Kure College of Technology, Department of Mechanical Engineering, Professor, 機械工学科, 教授 (40043799)
NAKASAKO Masakazu  Kure College of Technology, Department of Mechanical Engineering, Associated Professor, 機械工学科, 助教授 (30259923)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2005: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2004: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsBiodegradable Lubricating Oil / Synthesis Oil / Gear / Scoring / Fatty Acid Ester / Two-Roller Test / Power-Circulating Gear Machine
Research Abstract

To clarify the scoring resistance of biodegradable synthesis lubricating oil made of fatty acid ester, a gear test was carried out using a power- circulating gear machine and a two-roller test was carried out using an Amsler machine. Further, the scoring resistance of the synthesis ester oil was compared with that of vegetable oils. From the test, following results were obtained.
(1)In the two-roller test, the seizure resistance of the synthesis ester oil without additives was about 1.5 times as large as that of turbine oil without additives.
(2)In the two-roller test, the coefficient of friction of the turbine oil without additives was between 0.06 and 0.08. On the other hand, the coefficient of friction of the synthesis ester oil was between 0.04 and 0.07.
(3)In the gear test, the scoring resistance of the synthesis ester oil without additives was about 2.3 times as large as that of the turbine oil without additives.
(4)In the gear test, the critical surface temperature for scoring of the synthesis ester oil was approximately 200℃ higher than that of the turbine oil without additives, and it was about 400〜440℃.
(5)In the gear test, the sound pressure level, the acceleration due to vibration of gear box and loss torqe in case of the synthesis ester oil without additives were lower than those of the synthesis ester oil with additives.
(6)The effects of oxidation inhibitor and anti-wear additive on the scoring resistance and the seizure resistance of the synthesis ester oil were not recognized.
(7)The scoring resistance of rapeseed oil without additives was about 1.7 times as large as that of the turbine oil without additives. On the other hand, the scoring resistance of the synthesis ester oil without additives was about 2.3 times as large as that of the turbine oil without additives.

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (3 results)

All 2005

All Journal Article (3 results)

  • [Journal Article] 二円筒試験における生分解性合成潤滑油の焼付き強さ2005

    • Author(s)
      河野正来
    • Journal Title

      日本設計工学学会中国支部講演論文集 No.22

      Pages: 39-43

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Seizure Resistance of Biodegradable Synthesis Lubricating Oil in Two-Roller Test2005

    • Author(s)
      Masaki KOHNO
    • Journal Title

      Proceedings of Japan Society for Design Engineering Chugoku Branch No.22

      Pages: 39-43

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 二円筒試験における生分解性合成潤滑油の焼付き強さ2005

    • Author(s)
      河野正来
    • Journal Title

      日本設計工学会中国支部講演論文集 No.22

      Pages: 39-43

    • Related Report
      2005 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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