So Cute It's Overwhelming! Where Did All These “Bows” Come From?

It’s called the “button” of a railroad track, but its shape isn’t round—it’s an adorable “bow.” That’s the rail clip.Clips are one of the most important components of the fastening system. They generate clamping force on the rails through their own bending and torsional deformation, effectively ensuring a reliable connection between the rails and the substructure. Although people don’t usually notice them, there are approximately 7,000 of them per kilometer of track, and their reliability is directly linked to railway operational safety.

The following is a description of the rail clip.

My companions and I come from an automated spring clip production line that supports intelligent, automated assembly-line production of spring clips and can manufacture various models. Now, let’s take a look at how we “overcome the challenges”! I started out as an ordinary piece of spring steel. After being heated in a medium-frequency induction furnace, I had to pass three challenges to hone my skills.

Stage 1: High-Temperature Forging—Three Stages of “Pressure”

When my temperature reaches 900 to 1,000 degrees Celsius, I am sent to the forging facility (forming area), where my basic shape is forged through three stages of stamping.

Stage 2:    A “Cold Bath” to Temper the Body

Once formed, I slid down a “slide” into the quenching tank.    After more than 40 seconds in the “cold water bath,” I successfully forged a “tough body.”

Stage 3:    Tempering and Reforging—Strengthening the Structure

Next, I’ll board the conveyor belt and enter the tempering furnace to undergo another round of “fire tempering,” making my body even more “resilient.” This process creates a high-quality steel rail “button.”

After undergoing this kind of intelligent “training,” these rail “buttons” possess top-notch qualities. Whether facing extreme weather conditions—from scorching heat to bitter cold—or withstanding the immense pressure exerted by trains, they perform flawlessly on the tracks.