A Diffusion Bonding Method of High nb-tial Alloy
A technology of diffusion bonding and alloying, which is applied in the direction of welding equipment, metal processing equipment, welding/welding/cutting items, etc., can solve the problems of high diffusion bonding temperature, complicated diffusion bonding process, poor quality of diffusion bonding joints, etc., and achieve simplified diffusion The effect of joining process, improving quality and reducing processing cost
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Embodiment 1
[0026] The concrete process of this embodiment is:
[0027] Step 1: Treatment of the connecting surface of the specimen. Use 240#, 400#, 600#, 800#, 1000# and 1500# SiC water sandpaper to polish the surface of the sample in sequence, and use 1.5# diamond grinding paste for mechanical polishing after eliminating obvious scratches on the surface to be connected. The connection surface presents a mirror effect, and then the sample is immersed in absolute ethanol for ultrasonic degreasing treatment for 5 minutes, and stored in absolute ethanol.
[0028] Step 2: Vacuum diffusion connection. Combine the samples to be connected according to the connection requirements and put them into the vacuum diffusion welding machine for diffusion connection. When implementing diffusion connection, vacuum the chamber of the vacuum diffusion welding machine to 5×10 -3 Pa. The furnace chamber temperature of the vacuum diffusion welding machine was raised to 950°C at a heating rate of 10°C / min....
Embodiment 2
[0033] The concrete process of this embodiment is:
[0034] Step 1: Treatment of the connecting surface of the specimen. Treatment of the surface to be joined of high Nb-TiAl alloy forged samples. Use 240#, 400#, 600#, 800#, 1000# and 1500# SiC water sandpaper to polish the surface of the sample in sequence, and use 1.5# diamond grinding paste for mechanical polishing after eliminating obvious scratches on the surface to be connected. The connection surface presents a mirror effect, and then the sample is immersed in absolute ethanol for ultrasonic degreasing treatment for 5 minutes, and stored in absolute ethanol.
[0035] Step 2: Vacuum diffusion connection. Combine the samples to be connected according to the connection requirements and put them into the vacuum diffusion welding machine for diffusion connection. When implementing diffusion connection, vacuum the chamber of the vacuum diffusion welding machine to 5×10 -3 Pa. The furnace chamber temperature of the vacuum...
Embodiment 3
[0040] The concrete process of this embodiment is:
[0041] Step 1: Treatment of the connecting surface of the specimen. Treatment of the surface to be joined of high Nb-TiAl alloy forged samples. Use 240#, 400#, 600#, 800#, 1000# and 1500# SiC water sandpaper to polish the surface of the sample in sequence, and use 1.5# diamond grinding paste for mechanical polishing after eliminating obvious scratches on the surface to be connected. The connection surface presents a mirror effect, and then the sample is immersed in absolute ethanol for ultrasonic degreasing treatment for 5 minutes, and stored in absolute ethanol.
[0042] Step 2: Vacuum diffusion connection. Combine the samples to be connected according to the connection requirements and put them into the vacuum diffusion welding machine for diffusion connection. When implementing diffusion connection, vacuum the chamber of the vacuum diffusion welding machine to 5×10 -3 Pa. The furnace chamber temperature of the vacuum...
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