Baoji Taicheng Clad Metal Materials Co., Ltd uses explosive welding technology to weld the heat exchanger and the tube sheet, which provides customers with great economic benefits. Especially for dissimilar materials and high temperature and high pressure vessels, explosive welding shows great advantages. In the case of a small amount of medicine, the explosive expansion joint has also achieved satisfactory quality and technical effects.
As the combination of the thick-walled tube and the tube sheet of the heat exchanger, the method of explosive expansion tube and hermetic welding is established. This method has the characteristics of large pull-off force, no porosity during welding, and high reliability of the heat exchanger under high temperature and high pressure for long-term use. In addition, for thick-walled small-diameter pipes, the pipe removal process is simple and safe, especially cost-saving. As a complete set of equipment, the heat exchanger is one of the most typical products. It not only uses the plate explosive welding process and the tube explosive welding process, but also uses the tube and tube sheet explosive welding process. This technical improvement can be summarized into five major advantages:
1. Using clad materials instead of ordinary carbon steel to manufacture heat exchangers can significantly increase the service life of equipment, improve product quality and ensure normal production.
2. Replacing pure precious metals with composite materials can save a lot of rare metals and reduce equipment cost.
3. Use explosive and rolling process instead of pure rolling process to manufacture bimetallic tubes. This kind of tube is used as the tube bundle of the exchanger, which can obviously improve the heat transfer efficiency.
4. Explosive welding is used in the connection of the tube and the tube sheet. Compared with mechanical expansion of the tube, it can improve the reliability of the seal and reduce physical labor at the same time. Compared with melt welding, it can significantly improve the corrosion resistance of the weld. In addition, because the explosive welding has an expansion joint effect at the same time, the gap between the tube and the tube sheet can be eliminated, and crevice corrosion can be avoided. Especially when a bimetallic tube sheet is used, it can be welded to the base cladding layer of the tube sheet at the same time when the tube and the tube sheet are explosively welded.
5. The application of composite materials not only makes it possible to require the tube side and the tube shell to be resistant to corrosion by different media respectively, but also makes it possible to use the same material for the tube side and the tube shell respectively. This not only helps to avoid electrochemical corrosion, but also facilitates the use of a welded structure between the cylinder and the tube sheet instead of a flange connection.
Baoji Taicheng Clad Metal Materials Co., Ltd is a professional manufacturer of metal composite materials. In addition to metal clad plates, we also have a metal clad tube sheet factory. We can provide you with customized services . Please contact us for inquiries.
Sales Manager: Mr. Yang
Email: yangchen@bjtcjs.com
