Brand:Zhong Rui
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Braking System-Cast Iron Brake Shoe
The brake is fitting for the locomotive which speed is less than 100Km /H
There are three types as following:
1. Grey Cast Iron
2. High Phosphorus Cast Iron
3. Alloy Cast Iron
A. The chemical composition and mechanical properties
Material | Chemical Composition% | Tensile Strength Mpa | Hardness HBW10/3000 | |||
C | Si | Mn | P | |||
Grey Cast Iron | 2.9-3.5 | 1.8-2.2 | 0.6-1.2 | ≤1.0 | ≥150 | 179-255 |
High Phosphorus Cast Iron | 2.8-3.6 | 1.5-2.2 | 0.8-1.2 | 1.3-2.0 | ≥150 | 179-255 |
Alloy Cast Iron | 2.8-3.6 | 1.28-1.8 | 1.2-1.9 | ≤0.15 | 200-320 | 200-260 |
B. Average Friction Coefficient
Braking speed Km/H | Grey Cast Iron | High Phosphorus Cast Iron | Alloy Cast Iron |
100 | 0.1 | 0.13 | 0.1 |
80 | 0.11 | 0.15 | 0.11 |
