Forming method of high-strength and thin-wall longer high temperature alloy pipe
A technology of superalloy and forming method, which is applied in the field of forming high-strength and long-length thin-walled superalloy tubes, can solve the problems of fracture, wrinkle, cracks of high-strength and long-length thin-walled superalloy tubes, etc., so as to reduce hardness and increase Flexible and low-cost effects
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Embodiment 1
[0024] A method for forming high-strength and large-length thin-wall superalloy pipes, comprising the following steps:
[0025] (1) Softening: Select GH738 ultra-high-strength high-temperature alloy pipe with a diameter of ф6.3mm, a wall thickness of 0.2mm, and a length of 1800mm. Put the pipe into a vacuum furnace, adjust the temperature to 830°C, and soften the pipe for 150 minutes , so as to facilitate bending during molding;
[0026] (2) Plugging: Seal one end of the pipe tightly with a hard tapered cork, and control the length of the cork into the pipe to 15mm to ensure a tight seal, leaving a length of 40mm to facilitate pulling out the cork after forming out;
[0027] (3) Filling: inject the corundum with a fineness of 60 mesh into the pipe from the unblocked end of the pipe through the funnel, and shake or vibrate the pipe continuously during the process of filling the corundum so that the corundum can better fill the entire pipeline space. Stop filling when it is 15...
Embodiment 2
[0032] A method for forming high-strength and large-length thin-wall superalloy pipes, comprising the following steps:
[0033] (1) Softening: Select GH738 ultra-high-strength high-temperature alloy pipe with a diameter of ф8.6mm, a wall thickness of 0.1mm, and a length of 1750mm. Put the pipe into a quenching furnace, adjust the temperature to 850°C, and soften the pipe for 120 minutes , so as to facilitate bending during molding;
[0034] (2) Plugging: Seal one end of the pipe tightly with a hard tapered cork, and control the length of the cork into the pipe to 20mm to ensure a tight plug. The outer length is 40mm, which is convenient for pulling out the cork after forming out;
[0035] (3) Filling: inject the corundum with a fineness of 80 mesh into the pipe from the unblocked end of the pipe through the funnel, and shake or shake the pipe continuously during the filling process so that the corundum can better fill the entire pipeline space. Stop filling when it is 20mm a...
Embodiment 3
[0040] A method for forming high-strength and large-length thin-wall superalloy pipes, comprising the following steps:
[0041] (1) Softening: Select GH4648 ultra-high-strength high-temperature alloy pipe with a diameter of ф16mm, a wall thickness of 0.5mm, and a length of 1600mm. Put the pipe into a quenching furnace, adjust the temperature to 840°C, and soften the pipe for 130 minutes, so that bending during forming;
[0042] (2) Plugging: Seal one end of the pipe tightly with a hard tapered cork, and control the length of the cork into the pipe to 18mm to ensure a tight plug. The outer length is 30mm, which is convenient for pulling out the cork after forming out;
[0043] (3) Filling: inject the corundum with a fineness of 80 mesh into the pipe from the unblocked end of the pipe through the funnel, and shake or shake the pipe continuously during the filling process so that the corundum can better fill the entire pipeline space. Stop filling when it is 18mm away from the ...
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