It is reported that the “S793 Tapered Roller Bearing Vibration Measuring Instrument†appraisal chaired by the Science and Technology Bureau of Yantai City was commissioned by the Science and Technology Department of Shandong Province on May 10. Mr. Meng, Director of the Science and Technology Bureau of Yantai City, Mr. Wang Dong, Director of the Achievements Section, and Liu Dongfu, Chairman of the Axis Association of Shandong Province, Professor Zhu Kongmin, Director of the Instrument Department of Luoyang Axis Institute, and Professor Hou Zhiqiang, Professor of Vibration of the Naval Aeronautical Engineering Institute, participated in nine industry experts. Identification meeting. Leaders and experts at the meeting listened to the work report and technical report of the company, and conducted on-site inquiry, and carried out serious review of relevant documents and product operation tests and tests.
Leaders and experts at the conference gave high praise to the research and development of the product. They believed that the project was selected correctly, in line with the key technical requirements of the industry, and met the market demand. In the process of research and development, we insisted on independent innovation, and adhered to the leadership and the old and middle-aged engineering and technical personnel. The close integration of the mechanics and the combination of theory and practice in scientific experiments have successfully completed the scientific and technological research projects. It is hoped that Yantai Bearing Instrument Co., Ltd. will further optimize product design and production process, speed up mass production, meet user needs, and make greater contributions to the development of the industry.
Cobalt-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent high-temperature properties and resistance to wear and corrosion. These alloys are typically composed of cobalt as the base metal, with various alloying elements such as chromium, tungsten, nickel, and carbon added to enhance specific properties.
The use of cobalt-based alloy powders in PTAW offers several advantages, including:
1. High-temperature strength: Cobalt-based alloys exhibit excellent strength and resistance to deformation at elevated temperatures, making them suitable for welding applications that involve high heat.
2. Wear resistance: These alloys have a high hardness and resistance to wear, making them ideal for welding applications where the welded parts are subjected to abrasive or erosive conditions.
3. Corrosion resistance: Cobalt-based alloys offer good resistance to corrosion, making them suitable for welding applications in aggressive environments, such as those involving chemicals or saltwater.
4. Thermal conductivity: Cobalt-based alloys have good thermal conductivity, allowing for efficient heat transfer during welding and reducing the risk of heat-affected zone (HAZ) defects.
5. Compatibility with other materials: Cobalt-based alloys can be easily welded to a wide range of base metals, including stainless steels, nickel alloys, and other cobalt-based alloys, providing versatility in welding applications.
To use cobalt-based alloy powders for PTAW, the powder is typically fed into the plasma arc using a powder feeder. The powder is then melted by the high-temperature plasma arc and deposited onto the workpiece, forming a weld bead. The specific welding parameters, such as arc current, travel speed, and powder feed rate, will depend on the specific alloy and application requirements.
It is important to note that the selection of the cobalt-based alloy powder should be based on the specific welding application and the desired properties of the final weld. Different cobalt-based a
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