Rapid preparation method for single crystal blade
A technology of single crystal blades and blades, which is applied in the field of rapid preparation of single crystal blades, can solve the problems that the roughness is difficult to meet the use requirements, and the single crystal blades cannot be printed with wax patterns.
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Embodiment 1
[0026] In this embodiment, a rapid preparation method of a single crystal blade is as follows:
[0027] Design the blade model, the height of the blade is 50mm, add the seeding structure at the tip of the blade, and set the supporting wax structure at the bottom of the blade model, input the set model to the 3D printing device, set the shrinkage rate to 2%, and print the wax model . After printing, soak the wax model in a mixed solvent of alcohol and polypropylene glycol (PPG) at a volume ratio of 1:1 at 45°C for 20 minutes to remove the supporting wax structure. Then use the blue light scanner to check the appearance size of the printed wax model. The deviation between the size of the wax model and the theoretical size meets the dimensional tolerance requirements of the casting, that is, a wax model with a qualified size ( figure 2 ). Connect the wax model with the single crystal riser to form a single crystal module. Then the surface of the module was cleaned, coated wit...
Embodiment 2
[0030] In this embodiment, a rapid preparation method of a single crystal blade is as follows:
[0031] Design the blade model, the height of the blade is 25mm, because the size of the blade is small, it is not necessary to set the seeding structure, and set the supporting wax structure at the bottom of the blade model, input the set model to the 3D printing device, set the shrinkage rate to 1.9%, and print Wax model. After the wax model is printed, soak the wax model in a mixed solvent of alcohol and polypropylene glycol (PPG) at a volume ratio of 1:1 at 35°C for 50 minutes to remove the supporting wax structure. Then, the printed wax pattern is inspected with a blue-ray scanner to check its dimensions. The deviation between the wax pattern size and the theoretical size meets the dimensional tolerance requirements of the casting, that is, a wax pattern with a qualified size is obtained. Connect the wax model with the single crystal riser to form a single crystal module. The...
Embodiment 3
[0034] In this embodiment, a rapid preparation method of a single crystal blade is as follows:
[0035] Design the blade model, the height of the blade is 250mm, add the seeding structure at the tenon, and set the supporting wax structure at the bottom of the blade model, input the set model to the 3D printing device, set the shrinkage rate to 2%, and print the wax model. After the wax model is printed, the wax model is soaked in a mixed solvent of alcohol and polypropylene glycol (PPG) at a volume ratio of 1:1 at 48°C for 20 minutes to remove the supporting wax structure. Then use the blue light scanner to check the appearance of the printed wax model. The deviation between the size of the wax model and the theoretical size exceeds the dimensional tolerance requirements of the casting. Make corresponding modifications to the model for the out-of-tolerance position, and then re-enter the 3D printing equipment Print and remove the supporting wax, and the deviation between the s...
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Abstract
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