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XULONG SPRING — spring manufacturing plant logo XULONG SPRING

Technical articles from the factory

We write about what actually affects spring service life — no marketing. The articles are based on the experience of our engineers and testing in our own laboratory.

Topics

What we plan to write about

Choosing a spring for the task

How wire diameter, number of coils, rate and service life are related. What to ask a supplier.

Materials and heat treatment

How 65Mn, 60Si2Mn and 51CrV4 differ, and why the same drawing can yield different service lives.

Operation in Russian conditions

Low temperatures, abrasive media, shock loads: what to change in the spring design.

Acceptance and documents

Which test reports to request and how to inspect a batch during incoming inspection.

A finished batch of large springs in the factory warehouse before packing
A batch of torsion springs after shot peening — coil surface
Здесь будет фото Photo: spring fracture after a fatigue test (illustration of failure causes)

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