The best vacuum brazing method for titanium and titanium alloys

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Titanium and titanium alloys have the advantages of low density, high strength, good heat resistance and corrosion resistance. They are metal structural materials with excellent comprehensive performance and are widely used in aerospace, electricity, biomedicine, petrochemical and other fields. Vacuum brazing is one of the most common ways to connect titanium alloys.

Vacuum brazing has the advantages of small deformation of brazed workpieces, low brazing temperature, small welding deformation and high production efficiency. In addition, the use of vacuum brazing during the processing can effectively control welding residual stress and residual deformation, and realize the precision forming of complex components. Therefore, vacuum brazing is an effective method for connecting titanium and titanium alloys themselves and other materials.

Vacuum brazing has the following main advantages:

① High precision, small deformation of each part of the component, uniform heating, suitable for precise and compact component connection

② Suitable brazing filler metal can be designed according to the melting point of the parent material

③ High production efficiency, can complete many tasks that other welding technologies cannot complete

④ It has great advantages for the connection of welded parts of different types of materials.

Vacuum brazing connection of titanium and titanium alloys

TiAI, TC4, TC17 and other titanium alloys have excellent performance and are widely used in aerospace and other fields. Vacuum brazing of heterogeneous titanium alloys can bring out their respective advantages and has broad application prospects in the manufacture of composite components.

Vacuum brazing connection of titanium and titanium alloys with stainless steel

Titanium alloy/stainless steel composite components have the characteristics of good corrosion resistance, light weight and high specific strength, and have great application potential in engineering. Titanium-based brazing filler metal is one of the best brazing fillers for vacuum brazing titanium alloy and stainless steel. The titanium-based brazing fillers currently used include Ti-Zr-Cu, Ti-Cu-Ni and Ti-Zr-Cu-Ni systems.

Vacuum brazing connection of titanium and titanium alloys with ceramics

Ceramic materials have been widely used in connection with metal materials with high plasticity and good toughness due to their good high temperature performance, good corrosion resistance and high strength. However, due to the high hardness and great brittleness of ceramics, there are also some difficulties in vacuum brazing ceramics and titanium alloys while bringing out the common advantages of both. The main difficulty is to reduce the brittleness of ceramics and improve the wettability of ceramic surface oxides. The solution is usually to add an appropriate amount of active elements to the brazing filler metal or use special brazing filler metal. At present, the ceramic materials that can be vacuum brazed with titanium and titanium alloys include alumina, zirconium oxide, silicon carbide, silicon nitride, etc.

The vacuum brazing connection of titanium and titanium alloys with dissimilar materials helps to combine the advantages of the two materials to obtain structural parts with high strength and good high temperature performance.

SIMUWU High Temperature Vacuum Brazing Furnace recommendation

Model	Working Zone Size(W*H*L)	Max. Temperature	Ultimate Pressure	Temperature Uniformity	LoadingCapacity
RHVB-446H	400*400*600mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	200Kg
RHVB-557H	500*500*700mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	300Kg
RHVB-669H	600*600*900mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	500Kg
RHVB-7710H	700*700*1000mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	700Kg
RHVB-8812H	800*800*1200mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	1000Kg
RHVB-9915H	900*900*1500mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	1200Kg
RHVB-101013H	1000*1000*1300mm	1300℃	6.7*10-1Pa ~10-3Pa	±5℃	1500Kg
Remark: The working zone of equipment could be customized base on customer’s production.