| 摘要 |
A brake shoe for an elevator emergency stop has a including a brake body having a braking face and (b) plurality of braking pieces embodied in the braking face side of the brake body to be projected from a braking face. The projection of each of the braking pieces forms a column or a multi-cornered pole having rounded corners. The braking pieces are made of a composite material containing a ceramic base material selected from the group consisting of silicon nitride, silicon carbide and sialon, and particles of at least one ceramic material selected from the group consisting of a carbide, a nitride and a boride. The ceramic particles have a particle size in the range of 10 to 150 mu m, and dispersed into the ceramic base material. |
