The Basic Friction and Wear Characteristics of Brake Disks and Linings in Train Brakes on the Narrow-Gage Lines
Toru MIYAUCHI,
Engineer, Tribo-Materials Group, Materials Technology Development Div., Technological Development Dept.
Taro TSUJIMURA, Dr.Eng.,
Chief-Engineer, Tribo-Materials Group, Materials Technology Development Div., Technological Development Dept.
Cast iron disk has been used in train brakes since 1953 in Japan. However there were some problems of wear resistance and heat cracks. So other kinds of disk materials have been sought since 1975. Lining materials were changed from asbestos composite to non-asbestos composited in 1990. Recently a variety of disks and linings are in use. It is important to estimate friction and wear characteristics of some kinds of disks and linings.
In the study we made high sped friction tests and bench tests with combinations of different disks and linings and examined their basic friction and wear characteristics.