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What’s The principle Of Railway Train Braking?
When we drive a car and step on the brake shoes, the car slows down immediately. Even at a speed of 100 kilometers per hour, it only takes 30 to 40 meters…
The Secret to Smoother Castings: The Microscopic World of Self-Lubricating Cast Iron
1. Graphite Morphology: The Microscopic Secret of Natural Lubrication 1.1 Type A Graphite: Microscopic Ball Bearings in a Metal Matrix Under a microscope, type A graphite exists as evenly distributed flakes, resembling…
How to Achieve “Zero Burr” After Rough Machining of Rail Castings? — Five Core Processes and Production Practices
In rail transit equipment manufacturing, the quality of rail castings is directly related to the safety and stability of train operations. However, the burrs produced after rough machining remain a persistent pain…
Railway Track Clamps and Fasteners: The Core Connecting Technology of Railway Systems
In the crisscrossing railway network, track clamps (commonly known as fishplates) and fasteners (also called clips) are like the “joints” and “skeleton” of the rails, jointly constructing a precise system capable of…
Why Do Your Castings Always Rust After Shipping? You May Have Overlooked This ASTM Standard
1.1 The Root Cause of Casting Rust: The Dual Effects of Salt Spray and Electrochemical Corrosion The maritime environment is far more corrosive to metal castings than land transport. High concentrations of…
Sand Casting vs. Lost Foam Casting: A Guide to Selecting a Rail Part Production Method
In rail transit equipment manufacturing, casting quality directly impacts the safety and reliability of train operations. As the two main processes for rail part production, sand casting (sand casting) and lost foam…
What Is The Railway Tie Plate?
The rails are not directly fixed to the sleepers but are instead fixed to them through railway tie plates. Wooden sleepers typically use steel railway tie plates, while concrete sleepers typically use…
Railway Track Castings Quality: Defect Analysis & Comprehensive Prevention Guide
1. Introduction: The Importance of Quality and Failure Analysis of Track Castings Track castings are important components in the railway transportation system, responsible for supporting train operation and transmitting loads. The quality…
High-speed Railway Rail Welding Technology: Aluminothermic Welding, Pressure Welding, Flash Welding
As the construction of high-speed railway projects continues to deepen, the country has imposed stricter quality requirements on railway tracks. The steel rail is a key component of railway tracks, and choosing…
Green Casting in Progress: How to Achieve Zero Wastewater in the Meltshop
As the global manufacturing industry accelerates its transition toward sustainability, the traditional foundry industry faces severe environmental challenges. As a core foundation for rail transit equipment, the foundry industry consumes an average…
What Are Mine Electric Locomotive Brake Shoes?: Safety Guarantee For Underground Locomotive Braking
In the deep mine tunnels, mine electric locomotives rumble and shuttle, carrying the safety of minerals and miners. When deceleration or emergency braking is needed, a reliable and efficient braking system is…
From Cast Iron to Alloy Steel: A Century-Long Evolution of Track Materials
On September 27, 1825, a steam locomotive belched white smoke as it slowly pulled a coal-laden carriage along the Stockton to Darlington line in England. This 32-kilometer-long line was not only the…