1959

This volume is a collection of technical papers from a symposium dedicated to the properties, performance, and applications of hydraulic fluids in industrial and mechanical systems. It reflects the growing importance of hydraulic technology in manufacturing, aerospace, and heavy machinery during the mid-20th century.

The book begins with an overview of the role of hydraulic fluids as power transmission media in hydraulic systems. It outlines the essential functions these fluids must perform, including energy transfer, lubrication, sealing, and heat dissipation.

A major focus of the symposium is on the physical and chemical properties of hydraulic fluids, such as:

Viscosity and viscosity-temperature behavior
Compressibility and density
Thermal stability and oxidation resistance
Lubricating characteristics and wear prevention

The volume also addresses fluid composition and formulation, comparing different base fluids (e.g., mineral oils, synthetic fluids) and the use of additives to enhance performance, such as anti-wear agents, corrosion inhibitors, and antioxidants.

Additional topics include:

System performance and reliability: how fluid properties affect efficiency, component life, and maintenance
Contamination control: effects of particles, water, and degradation products on system operation
Testing and standards: methods for evaluating fluid quality and suitability for specific applications
Fire-resistant and specialized fluids: particularly relevant for high-risk industrial environments