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This document covers the process parameters for normalizing, annealing, quenching and tempering of common carbon steels, alloy structural steels, tool‑and‑die steels and steel castings, specifications for heating and holding duration, as well as hardness values at different tempering temperatures. Ⅰ.…

  These terms refer to mechanical performance indicators involved in the design and raw material selection of automobile leaf springs. Their definitions and differences are as follows: 1. Stiffness Definition: The ability of a material or structure to resist elastic…

I. Test Basis and Standards GB/T19844-2018 “Leaf Springs” 2. Test product drawings or technical conditions. Ii. Test Equipment Leaf spring fatigue testing machine. Iii. Operating Procedures 1. Clamping and supporting methods The clamping and support methods for the end with…

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  —   As the Labor Day holiday unfolded, our company once again demonstrated the strength of a well-coordinated team. While the administrative staff embarked on a mountain climbing and team-building retreat, the production department remained at their posts, working…

1‌.65Mn steel ‌ : This is a high strength, high toughness alloy steel, especially suitable for use in harsh environments such as impact, pressure and wear. The original hardness of 65Mn steel is generally lower than HRC20, but after heat…

You are not alone if you haven’t heard of a leaf spring U-bolt. Most people have no idea what type of function this little part plays in the average truck’s operation. Truck U-bolts are used within vehicle suspension to connect…

Spring is here, and everything is stretching and coming to life. For vehicles, the leaf spring is the “spring” of the chassis—it uses its flexibility to absorb bumps and make the ride as smooth as a flat road. Hengsaier leaf…

Replace worn, cracked or damaged car and truck leaf springs with OEM-quality automotive springs. In Houston, USA, we have a large stock of OEM-quality alternative leaf springs made of the highest quality steel. Select your brand, year and model, and…

1.After a new vehicle has traveled 1,000 kilometers, the U-bolts of the leaf spring saddle should be tightened (maintaining the tightening torque value at the factory) to prevent the U-bolts from loosening, which may cause the leaf spring to shift,…