1、 Ordinary carbon steel track

(1) Restrictions on train speed

1. Wear and tear cause uneven tracks

-Ordinary carbon steel tracks have poor wear resistance, and under long-term operation of trains, the surface of the track is prone to wear and deformation. For example, as the transportation volume increases, the surface of the track may experience irregularities such as dents and bulges. When the train is running at high speed, this unevenness will cause the train to vibrate more severely, affecting the stability of the train's operation. To ensure safety, the speed of trains on such tracks is often limited.

2. Limited strength affects the safety of high-speed driving

-The strength of ordinary carbon steel tracks is relatively limited. When the train travels at high speed, the impact force of the train on the track will increase, and ordinary carbon steel tracks may not be able to withstand this high-strength impact force. For example, when a high-speed train passes through a bend, the track needs to withstand greater lateral forces due to the centrifugal force. Ordinary carbon steel tracks may experience deformation or even fracture, endangering train safety and therefore not conducive to high-speed train operation.

2、 High manganese steel track

(1) Support for train speed

1. Good wear resistance ensures stability during high-speed driving

-High manganese steel tracks have strong wear resistance and can maintain good flatness on the track surface during long-term train operation. For example, on busy mainline railways, even if trains pass frequently, high manganese steel tracks are not prone to severe wear and tear. This enables the train to run smoothly at high speeds, reducing vibrations caused by uneven tracks, which is beneficial for the train to increase its speed.

2. High resilience to adapt to the impact force of high-speed driving

-High manganese steel has good toughness and can effectively absorb the impact energy during train operation. When the train is traveling at high speed, such as the impact generated by starting, braking, or passing through turnouts, high manganese steel tracks can cope well. This provides safety assurance for trains traveling at high speeds, enabling them to operate stably within the allowed speed range.

3、 Alloy steel track

(1) Positive impact on train speed

1. Adapt to special environments to ensure high-speed driving

-Alloy steel rail props have good comprehensive properties such as corrosion resistance, strength, and toughness. In special environments such as coastal or high-altitude areas, ordinary tracks may affect train speed due to corrosion or low-temperature embrittlement. And alloy steel tracks can adapt to these special environments, ensuring the stability of track performance. For example, on the seaside railway, alloy steel tracks will not suffer structural damage due to seawater corrosion, ensuring that trains can safely travel at their designed speed.

2. High strength and high precision ensure high-speed operation quality

-The high strength of alloy steel tracks can withstand various forces generated during high-speed train operation, including vertical pressure, lateral force, etc. Meanwhile, due to the relatively advanced manufacturing process of alloy steel tracks, high precision requirements can be achieved. For example, the geometric dimensions of the track can be more precise, which helps the train maintain good guidance during high-speed travel, reduce wear and vibration between the wheel and rail, and improve the speed and comfort of the train.