METHOD FOR MANUFACTURE OF CAST SLEEPER FOR WIDE TRACK RAILS Russian patent published in 2002 - IPC

Abstract RU 2179923 C2

FIELD: wood-working industry. SUBSTANCE: method involves manufacturing sleepers from wooden fibers, wires, rubber and viscose. Composition mixture contains, wt%: wooden fibers 50-70; wire 30-10; rubber 5-10; viscose 5-10. Sleeper is pressed under pressure of at least 75 MPa and held for at least 1 min at temperature of 75-100 C, with air admission being limited. EFFECT: improved operating characteristics of sleepers, reduced weight and cost. 2 dwg, 1 tbl

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RU 2 179 923 C2

Authors

Zanegin L.A.

Selivanov N.F.

Petrov Ju.L.

Dates

2002-02-27Published

2000-03-30Filed