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Cold bed furnace smelting technology improves the purity of titanium alloys

Cold bed furnace smelting technology has significant advantages in improving the purity of titanium alloys, which are mainly reflected in the following aspects:
1. Effectively remove inclusions

Cold bed furnace melting technology can effectively eliminate low-density and high-density inclusions in titanium alloys. During the melting process, low-density inclusions (such as TiN, etc.) can float to the surface of the molten pool, while high-density impurities (such as W, WC, etc.) will settle to the bottom and be captured by the solidification crust. This process ensures the remarkable purity and uniformity of the titanium alloy.

2. Refine regional design
The design of the cooling bed furnace divides the smelting process into multiple zones, including the melting zone, the refining zone and the crystallization zone. In the refining area, the titanium liquid stays for a long time, which helps to remove volatile impurities (such as hydrogen, chlorine, calcium, magnesium, etc.). This partition design makes the impurity removal during the smelting process more thorough.

3. Reduce raw material losses
Compared with traditional vacuum consumable arc melting (VAR), the cooling bed furnace performs melting under conditions close to atmospheric pressure, which can prevent the burning loss of highly volatile elements (such as aluminum, tin, manganese, etc.) and ensure the consistency of the alloy composition. Accurate control. This method is particularly suitable for the production of complex alloys and can improve the utilization of raw materials.

4. Simplify the smelting steps
The cooling bed furnace technology can obtain high-quality titanium alloy ingots through one melting, simplifying the steps required by traditional multiple meltings. This not only improves production efficiency, but also reduces by-products produced by multiple meltings, further improving the purity of the titanium alloy.

5. Improve product quality
Since cold bed furnace melting technology can significantly reduce metallurgical defects, especially hard alpha inclusions and high-density inclusions, this is particularly important for fields such as aerospace and aerospace that require extremely high material performance. Its superior metallurgical quality directly affects the reliability and safety of aeroengines and other key structural parts.

In summary, the cooling bed furnace smelting technology effectively improves the purity of titanium alloys by optimizing the design and process flow, and meets the growing demand for high-performance materials in modern industry.