Zheng Yabo, 34, is currently working as a technical team leader in the BYTY Titanium Alloy Technology Group's smelting plant. After 11 years of production frontline experience accumulation and innovative learning. His titanium alloy smelting process team has made many important achievements and progress in the field of titanium alloy smelting. Among them, what he is most proud of is the innovative proposal to produce TB6 titanium alloy by "low melting rate + argon filling" melting method.
TB6 titanium alloy is mainly used in aircraft landing gear. The alloy contains 2% iron, and iron is prone to chemical segregation in titanium alloys. For a long time, there has been a "beta spot problem". The serious situation will cause the material to break and fail during the flight, resulting in The plane crashed. If the "beta spot problem" cannot be solved, the application of TB6 titanium alloy in Chinese aircraft will also be hindered, and this problem has always troubled enterprises.
After many tests, Zheng Yabo finally found that one of the previously used smelting methods was "low melting speed" and the other was "argon-filled" smelting method. The "argon-filled" smelting method has never been used on this titanium alloy grade. Zheng Yabo has a bold idea, can combining the two smelting methods solve the "beta spot problem"?
The team adjusts and tests the process parameters of the smelting process to ensure stability and reliability during the melting process and provide effective guarantee for production. After passing three to four batches of small-scale tests before and after, the inspection results of the bars produced by the product are very good, and the "β spots" displayed by the imaging tissue are basically eliminated. The success of the small batch test represents a certain feasibility of using the "low melting rate + argon filling" melting method to solve the "beta spot problem" of TB6 titanium alloy.
Based on the success of the previous batches, the team increased the amount of process trials. Subsequently, more than a dozen batches of titanium alloy products were produced, totaling more than 20 tons. Through the practice in recent years, the products are finally produced stably. TB6 titanium alloy has been suffering from “β-spot defects” for many years, and it is also a scientific and technological problem. The titanium alloy industry has been conquering for many years. Now there are staged solutions and preliminary results have been obtained. Very optimistic. The stable application of new technologies in the later period can create tens of millions of economic benefits for enterprises. It also played a role in promoting enterprises to occupy domestic and foreign high-end product markets.