Precise casting module and casting method for preparing nickel base single crystal guide blade with precisely controllable crystal orientation by using precise casting module
A module and precision casting technology, which is applied in the field of precision casting, can solve problems such as limiting the development of aero-engines, achieve good grain integrity, improve casting pass rate and quality, and have good crystal orientation.
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[0030] Such as figure 1 As shown, a nickel-based single crystal guide vane precision casting module that can precisely control the crystal orientation includes a subgroup tree structure 6 arranged on a bottom plate 5, a pouring system 7 and a sprue cup 8, and the sprue The cup 8 is arranged on the upper part of the pouring system 7, and the subgroup tree structure 6 is composed of two parts: the guide vane 9 and the grain generator 10. The guide vane 9 has a fan-shaped arc structure, including the blade body 1, the inner Arc shroud 2 , outer arc shroud 3 , lacing boss 4 ; the grain generator 10 includes a crystal raising section 13 , and the crystal raising section 13 is in contact with the lower end surface of the blade body 1 .
[0031] It also includes a seeding strip 14 for preventing miscellaneous crystals, and the seeding strip 14 is located in the space formed between the inner arc surrounding band 2, the outer arc surrounding band 3 and the rib boss 4 of the guide van...
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