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How to use vacuum heat treatment furnace for annealing
The annealing process system is determined according to the requirements of alloy properties, work hardening degree and product technical conditions. The main process parameters of annealing are annealing temperature, holding time, heating speed and cooling method. The determination of the anneal...
Vacuum Furnace Preventive Maintenance Strategies
Daily maintenance of vacuum furnace: (1) Operators should be familiar with various instruments, pumps, and various parts of the equipment. Read and understand various manuals. (2) The cooling water pressure should be maintained between 0.1 and 0.2 MPa, and the outlet water temperature should be ≤...
Optimization measures for vacuum brazing of aluminum alloy water-cooled radiator
Aluminum alloy water-cooled radiators are increasingly widely used in heat dissipation fields such as rail transportation, aerospace, ships, and wind power due to their high efficiency in heat dissipation, green and safe characteristics. Vacuum brazing does not require the addition of brazing flu...
Common defects of vacuum brazing and their solutions
Common defects of vacuum brazing 1. Dissolution Reason: The brazing material does not match the base material, forming a low melting point phase. The heating rate is too slow or the holding time is too long. The vacuum brazing temperature is too high or the local temperature is uneven. Solution: ...
Answering the question of material hardness after vacuum brazing
When vacuum brazing 4340 steel with PDC (polycrystalline diamond composite), it is a technical challenge to ensure that the hardness of 4340 material does not decrease. 4340 steel is a high-strength alloy steel, and its hardness depends on vacuum quenching and vacuum tempering heat treatment. The...
Vacuum brazing process for copper
Copper has excellent electrical conductivity, thermal conductivity, corrosion resistance, ductility and certain strength. Adding various alloy elements to copper can improve its corrosion resistance, strength and improve machining performance. Parent material: 1. Pure copper (divided into oxygen ...
Understand the influence of vacuum degree on the quality of vacuum brazing products
Aluminum vacuum brazing is a welding process performed in a vacuum environment. The core of the process is to use heat to melt the brazing material and fill the tiny gaps between aluminum or aluminum alloy parts, and then form a strong and sealed connection after cooling. This process is widely u...
Vacuum furnace maintenance method
The main reasons for the discoloration failure of vacuum furnace products include the following points The discoloration failure of vacuum furnace products is mainly caused by oxidation, which may be due to insufficient vacuum, contamination or system leakage. Studies have shown that maintaining ...
Vacuum brazing of high temperature ceramic and metal joints
1. Vacuum brazing of structural ceramics Structural ceramics (such as Si₃N₄, SiC, Al₂O₃) have been widely used in mechanical processing, chemical industry, electronics, aerospace and other fields due to their excellent high temperature resistance, corrosion resistance and wear resistance. The rel...
Relationship between material surface roughness and vacuum brazing
Surface roughness is one of the important factors affecting the quality of vacuum brazing, especially in terms of the flow and wetting behavior of the brazing material and the performance of the joint. Vacuum brazing is a brazing process performed in a vacuum environment and is widely used to con...