The invention relates to a composition
brake shoe for an
urban rail vehicle and a manufacturing method of the composition
brake shoe for the
urban rail vehicle. The composition
brake shoe comprises the following components of, by weight, 10-15 parts of butadiene-
acrylonitrile rubber, 10-20 parts of
cashew nut shell oil modified phenolic resin, 6-10 parts of
basalt fibers, 4-8 parts of
carbon fibers, 8-15 parts of steel fibers, 5-8 parts of
sepiolite fibers, 2-6 parts of
hexamethylenetetramine, 5-8 parts of
iron oxide powder, 5-7 parts of crystalline
flake graphite, 5-7 parts of
chromite, 6-9 parts of
barium sulfate, 3-6 parts of
potassium feldspar and 5-8 parts of frictional
powder. The manufacturing method of the composition
brake shoe is a dry method production technology, and comprises the steps of steel back production,
abrasive blasting
processing, shaping, burdening, mixing, hot compacting,
heat processing, subsequent
processing, finished product forming and inspection. The manufactured composition
brake shoe is inspected through the 1:1 rack test, is excellent in friction and abrasion resisting performance, stable in brake performance, safe and
environmentally friendly, and solves the problem that the
friction coefficient drops too fast under the conditions of damascene of the composition
brake shoe for the
urban rail vehicle, hot cracks, hot spots and rain and
snow weather.