Method for manufacturing turbine labyrinth seal by wire arc additive manufacturing

The present invention relates to a method for manufacturing a turbine labyrinth seal composed of a ring-shaped body part, and a tooth part protruding from one surface of the ring-shaped body part, which is mounted between a diaphragm of a turbine and a turbine rotor to prevent the leakage of gas whi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BYUN SAM SUB, SON JAE WHA, LEE JONG YEOB, KANG HYUN KI, CHUNG TAEK HO
Format: Patent
Sprache:eng ; kor
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The present invention relates to a method for manufacturing a turbine labyrinth seal composed of a ring-shaped body part, and a tooth part protruding from one surface of the ring-shaped body part, which is mounted between a diaphragm of a turbine and a turbine rotor to prevent the leakage of gas while facilitating the rotation of the turbine rotor by minimizing friction between a rotor such as the turbine rotor and a stator such as the diaphragm during the rotation of the rotor inside the stator, and more specifically, to a method for manufacturing a turbine labyrinth seal using wire arc fusion lamination, wherein the body part is manufactured using a wire arc fusion lamination method, and the tooth part is manufactured using a direct spray lamination method. As described above, according to the method for stacking and manufacturing a hollow turbine labyrinth seal using 3D printing according to the present invention, a labyrinth seal, which is composed of a ring-shaped body part and a tooth part protruding from one surface of the ring-shaped body part, is stacked and manufactured using 3D printing. The body part is manufactured using a wire arc fusion lamination method, and the tooth part is manufactured using a direct spray lamination method, thereby reducing the overall load to improve assemblability, and reducing materials and processing costs to improve productivity. 본 발명은 터빈로터와 같은 회전체가 다이아프램과 같은 고정체 내에서 회전시 서로 간의 마찰을 최소화하여 터빈로터의 회전은 원활하도록 유도하면서도 가스의 누설을 방지하기 위하여 터빈의 다이아프램과 터빈로터 사이에 장착되는 것으로, 링형상의 몸체부와, 상기 링형상의 몸체부의 일면에 돌출되는 투스부로 이루어져 있는 래비린스 씰 제조방법에 관한 것으로, 상기 몸체부는 와이어 아크 용융 적층방식으로 제조하고, 투스부는 직접분사 적층방식으로 제조하는 것이 특징인 와이어 아크 용융 적층을 이용한 터빈 래비린스 씰 제조 방법에 관한 것이다. 상술한 바와 같이 본 발명 3D프린팅을 이용한 중공형 터빈 래비린스 씰 적층제조 방법은 링형상의 몸체부와, 상기 링형상의 몸체부의 일면에 돌출되는 투스부로 이루어져 있는 래비린스 씰 3D프린팅으로 적층제조하되, 몸체부는 와이어 아크 용융 적층방식으로 제조하고, 투스부는 직접분사 적층방식으로 제조함으로써 전체하중이 줄어들어 조립성을 향상시킬 수 있으며, 또한 소재와 가공비를 절감하여 생산성을 향상시킬 수 있다는 등의 현저한 효과가 있다.