There are two primary types of expansion joints-metal and non-metallic or elastomeric. Metal expansion joints are constructed in a bellows configuration from thin-gauge material designed to absorb mechanical and thermal movement. Elastomeric expansion joints, by contrast, are fabricated from natural or synthetic rubber and fabric. Consisting of an inner elastomeric tube fused to a metal-reinforced fabric body and an elastomeric cover, these types of expansion joints accommodate greater pipe movement and provide more abrasion resistance than metal joints.
Rubber Expansion Joint,Power Plant Expansion ,Expansion Joint Tube,Boiler Fabric Expansion Joint Jinan Yuanda Power Equipment Co.,Ltd. , https://www.jnyuandaboilers.com
It is understood that a small number of leading petrochemical equipment manufacturing companies in China have basically reached the level required by modern large-scale fertilizer and ethylene equipment production, and can provide domestically-made equipment that accounts for nearly 85% of the total investment for large fertilizer or ethylene equipment. However, at the same time, most companies still have insufficient supporting and total quantity of advanced equipment. The quality problems are particularly manifested in a large number of ordinary pressure vessel products, mechanical and electrical products, and supporting equipment. Compared with similar foreign products, the unit operating equipment In terms of efficiency and consumables, there is a very clear gap, which is mainly due to the gap in the management level of domestic equipment manufacturing companies.
In addition, the current domestic joint venture projects are basically designed by foreign countries. Foreign chemical engineering companies are not familiar with the standards and performance of China's petrochemical equipment. When designing and selecting models, they rarely consider Chinese products, making it difficult for domestic equipment to enter these large-scale projects.
In the face of the impact of imported equipment on the domestic market, petroleum and chemical equipment manufacturers must speed up technological transformation, enhance technological innovation and development capabilities, actively adopt international standards, and participate in the global production system led by multinational companies, giving full play to China's conventional petrochemical equipment. The advantages of good quality and low price have achieved better development in the new round of domestic and international market competition.
Expansion joints reduce vibration, dampen sound, and accommodate movement in piping systems.
Experts suggest that equipment manufacturing should shift from “protecting the internal†to “contendingâ€
The 2008 National Pressure Vessel Manufacturing Unit Work Conference held in Changsha on April 12 uploaded information. At present, the foreign-invested companies' investment and market share in China's petrochemical and chemical industries have become very important. The top 100 chemical companies in the world are already in the process. China Investment. Experts suggest that China's petroleum and chemical equipment manufacturing industry must shift from maintaining the domestic market as soon as possible to aligning it with the level of world-class equipment manufacturing.