Precision casting method for vacuum suction casting titanium base alloy
In order to solve the shortcomings of titanium, titaniu […]
In order to solve the shortcomings of titanium, titanium and aluminum near-net forming precision casting process, the process is complicated, difficult, the production rate is extremely low, and the cost is high. After nearly ten years of research, the company has invented a kind of titanium alloy and titanium-aluminum alloy. A new method of casting and forming - the bottom leakage vacuum suction casting method.
Principle: The water-cooled copper crucible melts titanium and titanium-aluminum-based alloy, and the crucible has a bottom-drain suction-casting function. After the end of the melting, the titanium alloy is pressed into the mold by gas pressure to form a casting. Advantages: This method is particularly suitable for the preparation of thin-walled castings of titanium alloys and titanium-aluminum alloys, which have high activity, high melting point and poor casting properties, and have the following advantages:
1. Near net shape, greatly improve material utilization; 2. Especially suitable for casting complex parts, thin-walled parts and other castings that are difficult to produce by other methods, can form small thin-walled titanium alloy parts with wall thickness of 0.5mm, and this kind Castings are difficult to cast by other methods; 3. Greatly reduce the interfacial reaction between the casting and the mold, reduce the shrinkage defects in the casting, refine the grains, reduce segregation, and improve the performance of the casting.
2. The smelting and casting process is simple, the efficiency is high, the production mode is flexible, and the production cost is on average 50% lower than the investment precision casting and centrifugal casting. The company has mastered the core processing technology of advanced titanium alloy and other high melting point and high activity rare metal materials which are difficult to process in the new material field. It is at the domestic leading level. The cost of adopting this technology product is much lower than the current conventional casting method, with an average low of 50. %the above.