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Vacuum Heat Treatment Furnace

Vacuum Sintering Furnace

Vacuum Brazing Furnace

Vacuum Heat Treatment Process for Aeronautical Forgings

The rapid development of information technology and the transportation industry has realized the global village. With the aviation forging industry and related industries catching up in this field for many years, it is now time to realize the global standardization of the aviation forging vacuum heat treatment industry. The process of heating, insulating and cooling metal materials or workpieces in an appropriate way to obtain the expected structure and properties.

Vacuum heat treatment process

Precise tissue performance control and precise shape and size control. Customers or general forging specifications generally specify the vacuum heat treatment system for forgings. The vacuum heat treatment system generally consists of at least three process parameters: heating temperature, holding time, and cooling method/speed; vacuum heat treatment for superalloy forgings usually consists of solution treatment, It consists of intermediate treatment and aging treatment, and one, two or three treatments can also be selected.

Aluminum alloy vacuum heat treatment

High-strength and high-toughness 2xxx series and 7xxx series aluminum alloys: In order to meet the high strength, high toughness, corrosion resistance, and fatigue resistance requirements of aircraft and launch vehicles for aluminum alloy materials, in addition to improving the melting and casting technology, the quality of the ingot is guaranteed from the source, and In addition to precise processing technology, it is also necessary to carry out necessary and precise vacuum heat treatment on aluminum alloy.

Titanium alloy vacuum heat treatment

Vacuum annealing: eliminate stress, improve plasticity and stabilize structure, suitable for α-type titanium alloys, near-α-type titanium alloys, and α+β-type titanium alloys.

Double annealing, solution aging: eliminate stress, improve strength and stabilize structure, suitable for near α type titanium alloy, α+β type titanium alloy, β/near β type.

Complex annealing: eliminate stress, improve strength and stabilize structure, suitable for near α-type titanium alloy and α+β-type titanium alloy.

The vacuum heat treatment process of titanium alloy focuses on the furnace loading method, temperature, time and cooling.

Furnace loading method: anti-vacuum heat treatment deformation problem (furnace loading is based on the maximum area of contact with the support surface, taking into account structural characteristics), heating uniformity and cooling hardenability problems (stacking is prohibited, and spacing is maintained).

Temperature: The temperature is related to the proportion of primary equiaxed α phase and β transformation content, which affects the structure and final performance.

Time: The holding time determines the homogenization of the phase, the spheroidization of the structure and the uniformity of solid solution and precipitation. Cooling: Cooling is related to the morphology of secondary α phase, which has a great influence on the final performance of forgings.

Vacuum heat treatment is a special process (special process) mainly used to manufacture key parts and important parts of aircraft and engines that are subjected to alternating loads and concentrated loads. Such as frames, beams, landing gear, joints in the aircraft body, discs, shafts, blades, rings in the engine, etc. It is an important factor in determining the performance and reliability of aircraft and engines.