Method, system and equipment for manufacturing single-crystal casting
A manufacturing method and technology of a manufacturing system, applied in the field of precision manufacturing and casting, can solve the problems of low yield and production efficiency of miscellaneous crystals and single crystal castings, achieve refining solidification structure, improve yield and production efficiency, and avoid miscellaneous crystals The effect of defects
Inactive Publication Date: 2019-02-15
深圳市万泽中南研究院有限公司 +1
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Problems solved by technology
[0003] In view of this, the present invention provides a method, system and equipment for manufacturing single crystal castings, which solves the technical problem of low yield and production efficiency of single crystal castings due to the fact that miscellaneous crystal defects are easily generated during the manufacture of existing single crystal castings
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[0022] The technical solutions of the present invention will be further described in more detail in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. According to the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0023] In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connectio...
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The invention relates to the technical field of precision casting and discloses a method, a system and equipment for manufacturing a single-crystal casting. The method for manufacturing the single-crystal casting comprises steps as follows: analyzing shape features and historical experimental data of the single-crystal casting to obtain the stray grain susceptible position of the single-crystal casting; determining an adjusting zone of pulling velocity according to the acquired stray grain susceptible position; determining adjustment range of the pulling velocity according to occurrence frequency and severity degree of stray grains in the historical experimental data; determining the pulling velocity of the adjusting zone according to preset pulling velocity and the determined adjustment range of the pulling velocity; performing speed-change treatment on the adjusting zone determined by directional solidification of the single-crystal casting according to the determined pulling velocity of the adjusting zone. The directional solidification of the single-crystal casting is subjected to targeted slowdown pulling treatment in the stray grain susceptible zone and subjected to targetedaccelerated pulling treatment in a stray grain insusceptible zone, so that yield and production efficiency of the single-crystal casting are increased.
Description
technical field [0001] The invention relates to the technical field of precision manufacturing and casting, in particular to a method, system and equipment for manufacturing a single crystal casting. Background technique [0002] In the field of manufacturing single crystal castings, single crystal castings such as the edge plate of single crystal blades have a large section expansion, and the heat dissipation at the corners of the single crystal castings is too fast under the conventional preset drawing speed, which makes the melt supercooled and easily generates miscellaneous crystal defects. At the same time, the use of slower conventional preset drawing speeds in the blade and blade body areas where single crystal blades are not prone to miscellaneous crystal defects will affect manufacturing efficiency, resulting in low yield and production efficiency of single crystal castings. Contents of the invention [0003] In view of this, the present invention provides a metho...
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IPC IPC(8): C30B11/00
CPCC30B11/006
Inventor 马德新郭建政冯杰
Owner 深圳市万泽中南研究院有限公司