**I. Introduction** Qingdao's sewage treatment plant, with a first phase capacity of 50,000 tons per day, was completed in 2002. The second phase, also with a capacity of 50,000 tons per day, was finished in 2008. A major renovation project was carried out in 2011 to upgrade the facility. In total ...more
After completing the installation of NTN bearings, it is essential to perform a thorough inspection to ensure everything is functioning correctly. For smaller equipment, manually rotate the bearing to check for smooth operation and identify any potential issues such as foreign objects, scratches, or ...more
**Chemical Composition and Mechanical Properties of 25Cr2Mo1VA Steel, Main Applications** **Material Name:** 25Cr2Mo1VA **Standard:** GB/T 3077-1999 (High Quality Steel) **Chemical Composition:** - **Carbon (C):** 0.22–0.29% - **Silicon (Si):** 0.17–0.37% - **Manganese ...more
After the NTN bearing installation is completed, it's essential to perform a thorough inspection to ensure everything is functioning correctly. For smaller equipment, you can manually rotate the bearing to check if it turns smoothly without any resistance. During this process, inspect for any foreig ...more
**Chemical Composition and Mechanical Properties of 25Cr2Mo1VA, Main Applications** The **25Cr2Mo1VA** is a high-quality alloy steel specified under the **GB/T 3077-1999** standard. It is a medium-carbon heat-resistant steel known for its excellent strength and toughness. This material is part ...more
**I. Introduction** Qingdao's sewage treatment plant has undergone several phases of development. The first phase, with a capacity of 50,000 tons per day, was completed in 2002. The second phase, also with a capacity of 50,000 tons per day, was finished in 2008. A major upgrade was carried out in 2 ...more
Slender rod-shaped tools, such as drills and reamers, play a critical role in machining processes. The sharpening of these tools directly determines the shape and precision of their cutting edges, making it a crucial step in ensuring both the performance of the tool and the quality of the final mach ...more