This article is reproduced from: Heilongjiang Daily
Aerospace Sea Eagle HaTi
Develop and deliver the heaviest titanium alloy precision casting product in China
Report from this newspaper (Zou Yan, Chen Shuaiqi, reporter Xue Jing) Recently, Aerospace Haiying (Harbin) Titanium Co., Ltd. (referred to as Aerospace Haiying Harbin Titanium) successfully developed and delivered a large new generation marine pump system with a single weight of 1.8 tons. The key load-bearing and flow-passing components are the titanium alloy precision casting products with the largest known single weight in China, marking that the company's development and production capabilities in the field of ultra-large, high-precision and complex structure titanium alloy casting have once again passed the actual test and won customers Highly recognized.
It is reported that the product has a large wall thickness difference, has a multi-layer complex cross-shaped surface structure, and the internal blades and ribs are intertwined. It is extremely difficult to form and process the casting. At the same time, due to the heavy weight of the product and the intense transition between thickness and thickness, the metallurgical quality of the product is compromised. It is extremely difficult to ensure and control deformation. In addition, the product development and delivery cycle is tight, and it is a huge challenge to complete the task on schedule.
In the early stages of product development, the Aerospace Sea Eagle Harbin Titanium project team conducted a large number of simulation tests and analyses, from the formulation of the overall process plan, simulation and optimization of multiple rounds of subdivided process plans, to production preparations for subdivided processes and emergency plans. Formulated, and then launched into development and production, focusing on product forming quality control and product dimensional accuracy control, and finally successfully conquered many core technologies such as high-quality control technology and high dimensional accuracy control technology for ultra-large and complex multi-layer titanium alloy castings The key technology meets the test requirements for the titanium alloy pump body prototype of the new generation of marine equipment.