Blog - Jinan Zhongchuan Equipment Co., Ltd.

16 2025.04

Heat Dip Galvanizing for Bolt Fasteners Surface Treatment

Bolts play a crucial role as fasteners in various engineering applications, and their surface treatment directly affects their corrosion resistance and overall performance. Among them, hot-dip galvani...

15 2025.04

What Are the Key Challenges Facing the Wind Turbine Fastener Market in Europe?

The European wind energy sector is rapidly expanding, driven by ambitious decarbonization goals. However, the growing demand for wind turbine components, particularly high-performance fasteners, faces...

11 2025.04

What Are the Fatigue Failure Modes of Bolted Connections?

Bolt Assembly Torsion FractureThe characteristic of torsion fracture is obvious necking elongation at the fracture location. The common causes of torsion fracture are mainly due to the small coefficie...

06 2025.04

The Tightening Torque Standard of High Quality Bolts, The Selection of Pre-Tightening Force and the Checking of Bolt Strength

Standard Tightening Torque for High-Quality BoltsTightening torque and breaking torque are two distinct concepts. Tightening torque refers to the recommended value for screwing the bolt into the workp...

01 2025.04

What Type of Bolts are Used in Tower Cranes?

In the field of industrial precision machining parts and high-strength special fasteners, bolts play a crucial role in tower cranes. These bolts not only need to withstand high strength and heavy load...

14 2023.10

Factors Leading to Hydrogen Embrittlement

Factors that generate hydrogenThere are various factors that generate hydrogen. In most cases of hydrogen embrittlement failure in fasteners, the highest number of factors come from the pickling and s...

07 2023.10

What Is Hydrogen Embrittlement?

Hydrogen embrittlement is a serious problem,it can cause changes in the structure of materials and lead to a sharp decrease in mechanical properties. Despite decades of in-depth research, there are st...

04 2023.10

What Are the Microscopic Changes in Annealing During Heat Treatment?

Annealing ProcessThe heat treatment process of heating the metal or alloy to a suitable temperature, holding it for a certain period of time, and then slowly cooling it (generally cooling with the fur...

11 2023.09

What Are the Microscopic Changes in Austenitizing during Heat Treatment?

Normalizing ProcessNormalizing is a metal heat treatment process that involves heating the steel parts above the critical temperature (the temperature at which complete austenitization occurs) by 30~5...