Can an electric heating vacuum brazing furnace brazing diamond?
04-23-2025 Author: KJ technology
The electric heating vacuum brazing furnace can brazing diamond. The following is a detailed analysis of this issue:
1. Technical background of vacuum brazing diamond
Diamond has high hardness and excellent physical and mechanical properties, playing an important role in processing various hard materials. However, diamond has a high interfacial energy with general metals and alloys. In traditional manufacturing methods, diamond particles are embedded in the metal matrix of the matrix solely by the mechanical clamping force generated by the cold shrinkage of the matrix, resulting in poor adhesion and easy detachment of diamond particles. Vacuum brazing technology heats diamond, brazing alloy, and substrate in a vacuum environment, causing them to undergo a series of physical and chemical reactions, achieving strong chemical bonding or metallurgical bonding, thereby significantly improving the life and performance of diamond tools.
2. Application of Electric Heating Vacuum Brazing Furnace in Diamond Brazing
The electric heating vacuum brazing furnace has the characteristics of high vacuum environment, precise temperature control, and efficient heating, making it very suitable for brazing diamond. In a vacuum environment, it can reduce the thermal damage of diamond and prevent its graphitization; At the same time, precise temperature control can ensure the stability of temperature during the brazing process, avoiding adverse effects on diamonds and brazing alloys caused by excessively high or low temperatures.
3. The specific process of diamond vacuum brazing
Diamond surface pretreatment: In order to improve the wettability between diamond and brazing material, it is usually necessary to pretreat the diamond surface, such as metallization treatment.
Assembly of brazing material and substrate: Assemble the pre treated diamond, brazing material alloy, and substrate according to the design requirements.
Vacuum brazing: Place the assembled workpiece into an electric heating vacuum brazing furnace, vacuum it to a predetermined value, and then heat and insulate it according to the set brazing process parameters. During the brazing process, the brazing alloy melts and wets the surface of the diamond and substrate, forming a strong metallurgical bond.
Cooling and post-processing: After brazing is completed, turn off the heating power and let the workpiece cool naturally to room temperature in the furnace. Then take out the workpiece for necessary post-processing, such as cleaning, polishing, etc.
4. The advantages of diamond vacuum brazing
Improving the lifespan and performance of diamond tools: Through vacuum brazing technology, a strong metallurgical bond is formed between diamond and the substrate, significantly enhancing the wear resistance and service life of diamond tools.
Reducing diamond detachment: Vacuum brazing technology effectively solves the problem of diamond detachment in traditional manufacturing methods and improves the reliability of diamond tools.
Manufacturing of complex shaped tools: Vacuum brazing technology can manufacture various complex shaped diamond tools to meet different processing needs.
