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What does brazing mean? What are the characteristics

by:Kehua     2022-07-24
What does brazing mean? I believe that many of my friends don’t know, what are its application characteristics, and what do you know about it? With these questions, let the editor of Kehua website briefly explain to you, there are Interested friends can come and see. What does brazing mean? Brazing means brazing refers to the welding method in which the solder and the solder below the melting point of the solder are heated to the melting temperature of the solder at the same time, and the gap between the solid workpiece is filled with the liquid solder to connect the metals. . According to the different melting points of the solder, brazing is divided into brazing and soldering. The brazing deformation is small, the joints are smooth and beautiful, and it is suitable for welding precision, complex and components composed of different materials, such as honeycomb structure plates, turbine blades, carbide cutting tools and printed circuit boards. Before brazing, the workpiece must be carefully processed and strictly cleaned to remove oil stains and excessively thick oxide film to ensure the interface assembly gap. The gap is generally required to be between 0.01 and 0.1 mm. Compared with fusion welding, the base metal is not melted during brazing, only the brazing material is melted; compared with pressure welding, no pressure is applied to the weldment during brazing. The weld formed by brazing is called brazing. The filler metal used for brazing is called brazing filler metal. Brazing process: The workpieces that have been cleaned on the surface are assembled together in a lap joint pattern, and the solder is placed near or between the joint gaps. When the workpiece and the solder are heated to a temperature slightly higher than the melting point of the solder, the solder melts (the workpiece is not melted), and is sucked in by capillary action and fills the gap between the solid workpieces. The liquid solder and the workpiece metal diffuse and dissolve with each other. A brazed joint is formed after condensation. What does brazing mean? What are the application characteristics? (1) The brazing heating temperature is low, the joint is smooth and flat, the change in structure and mechanical properties is small, the deformation is small, and the size of the workpiece is accurate. (2) It can weld the same metal or dissimilar materials, and there is no strict limit on the thickness difference of the workpiece. ⑶ Some brazing methods can weld multiple weldments and joints at the same time, and the productivity is very high. ⑷The brazing equipment is simple and the production investment cost is low. ⑸The strength of the joint is low, the heat resistance is poor, and the cleaning requirements before welding are strict, and the price of the solder is relatively expensive. Well, after listening to the editor's introduction, I wonder if you have a certain understanding of what brazing means. If you have any other opinions, please leave us a message. You can also follow the Kehua website.
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