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Iron Bone and Tender Heart: How Ductile Iron Makes Gearbox Strong and Resilient
When a high-speed train travels at over 300 km/h, its core power transmission component—the gearbox housing—endures enormous loads and impacts. It needs a steel-like frame (“Iron Bone”) to bear the weight and…
How Sand Casting Technology Connect Ancient and Today?
When the Eastern Zhou “Pan Chi” Bronze Ding sits in the Luoyang Museum, its patina hides an ancient Chinese invention: sectional mold casting. Three thousand years ago, artisans used clay molds for…
What Are The Differences Among The Four Types Of Materials, Q235A, Q235B, Q235C And Q235D?
Q235 series is the most widely used carbon structural casting steel in China. Its naming rule is “Q + number + quality grade symbol”, where “Q” stands for yield strength, “235” indicates…
Sand Casting: The “Iron Cradle” of High-Speed Rail Gearboxes
Across fields, valleys, tunnels, and viaducts, high-speed trains fly past. Inside these trains, gears play a vital role. These gears need a home, a place to reside – this is the gearbox…
Must-Know Advantages of Ductile Iron
1. What is Ductile Iron? 1.1 Ordinary cast iron is like a piece of biscuit – hard but full of empty structures inside, so that it is very easily crackedd. It’s easy…
Comparison of Manganese Steel and High Carbon Steel in Railway Parts
In the world of railways, steel is the silent backbone. Choosing which type of steel is not a simple matter of theoretical discussion; it directly affects the operational safety, maintenance costs, and…
How To Install Railway Fish Plates and Q&A
I. Precise Installation Of Railway Fish Plates 1.1. Pre-construction Preparation: Check “Workpiece”: Carefully verify the model of the fish plate, and inspect for any scratches, dents, or rust. Thoroughly clean the steel…
Analysis Of Five Common Faults of Railway Switches And Efficient Solutions
I. Fault One: Switch Jamming 1.1 Fault Phenomenon: When the operator issues a conversion command in the control room, the switch moves slowly and with difficulty, or even gets completely stuck, and…
Railway Flange: How It Firmly “Holds” Safety
You look at the endless railway tracks. A train speeds past. Do you know that an important part is guarding the train’s safety? This part is the railway flange. 1. How the Railway Flange Works:…
How To Choose High-Strength Fishplates?
In the vast network of railway systems, the junction of two steel rails is not merely a simple “joint” but a strategic location that concerns the safety, stability, and efficiency of the…
What Is The Purpose Of Rail Grinding?
When we marvel at the lightning-fast speed and smoothness of high-speed trains, we often attribute the credit to advanced locomotives and vehicles as well as intelligent control systems. However, what underpins this…
Quality Standards in Precision Casting Using Furan Casting
Precision casting demands high standards. Furan casting is a key process for this work. It is known for its accuracy and strength. Many foundries use Furan casting to make quality parts. To…