Electric scooters are gaining popularity in urban transportation. However, the risk of stem and neck fractures remains a potential safety concern. In this article, we will delve into how to ensure that electric scooter stems and necks do not break, focusing on three key aspects: safe folding design, forging and heat treatment processes, and appropriate material selection.
Why Are Stems and Necks Prone to Breakage?
A. Location of Maximum Stress Points
The susceptibility of electric scooter stems, suspension and necks to breakage is primarily due to their location at the maximum stress points when riders lean forward. These components bear significant pressure and must possess adequate strength and durability to prevent fractures.
Three Key Aspects: Safe Folding Design, Forging and Heat Treatment Processes, Appropriate Material Selection
B. Safe Folding Design
Firstly, safe folding design is a critical factor in preventing stem and neck fractures. This entails ensuring that these components remain stable during rides while allowing convenient folding and storage. Design engineers must make prudent decisions to balance these two factors, ensuring that stems and necks remain safe during use and storage.
C. Forging and Heat Treatment Processes
Secondly, forging and heat treatment processes are essential for ensuring the strength of stems and necks. Heat treatment is a process that alters the performance of metal materials by controlling heating, insulation, and cooling processes. This enhances the hardness and durability of metals. Additionally, excellent forging processes are crucial for component strength. Employing techniques such as one-time molding, controlling overheating temperatures, and conducting regular third-party inspections are key steps in guaranteeing the quality of stems and necks.
D. Dispelling the Misconception About the Number of Stems
First, it’s essential to dispel a common misconception that the number of stems on an electric scooter significantly influences its susceptibility to breakage. Whether it’s a single stem or a double stem, what truly matters is the quality of the materials and the manufacturing processes, rather than the quantity.
Therefore, to ensure that electric scooter stems and necks do not break, we must consider the following:
- Over-Engineered Frame Design: When designing stems and necks, consider the location of maximum stress points to ensure they are robust enough to withstand the rider’s weight.
- Top-Notch Heat Treatment Processes: Utilize high-quality metal materials and precise heat treatment processes to enhance metal hardness and durability.
- Excellence in Forging Techniques: Employ one-time molding techniques, control overheating temperatures (around 500° ± 10°), and use five temperature control devices. Regular third-party inspections should also be conducted.
In conclusion, ensuring the safety of electric scooter stems and necks is a crucial task that demands high standards in design, manufacturing, and material selection. By focusing on safe folding design, forging and heat treatment processes, and appropriate material selection, we can significantly enhance the safety of electric scooters, making rides more enjoyable and worry-free.
Written by TEVERUN engineer Mr ZHU