Thermal correction method of titanium alloy special-shaped tubular casting

[0020] Firstly, determine the deformed part of the titanium alloy special-shaped tubular casting, and apply an anti-oxidation coating (KBC-12) of 0.2 mm to this part. Design and manufacture 5-turn induction coil according to the cross-sectional shape of the special-shaped tubular casting, fix the tubular casting and mold in the induction coil through tooling and fixtures, make the gap between the coil and the casting reach 25mm, move the induction coil to the deformed part through the transmission device, Gradually increase the induction power to 40kw within 60s, the frequency is 6000Hz, remove the induction coil after heating for 50s. Utilize a hydraulic press to apply an external force to the heating part, and the correcting external force is 1000N, so that the deformed part is plastically deformed, and the thermal rectification process of the present invention is completed. This rectification method can effectively avoid the occurrence of secondary cracking of the casting, a...

[0022] Firstly, determine the deformed part of the titanium alloy special-shaped tubular casting, and apply an anti-oxidation coating (KBC-12) of 0.3 mm to this part. According to the cross-sectional shape of the special-shaped tubular casting, a 3-turn induction coil is designed and manufactured, and the tubular casting and mold are fixed in the induction coil through tooling and fixtures, so that the gap between the coil and the casting reaches 30mm, and the induction coil is moved to the deformed part through the transmission device. Gradually increase the induction power to 50kw within 75s, the frequency is 5500Hz, remove the induction coil after heating for 40s. Utilize a hydraulic press to apply an external force to the heating part, and the correcting external force is 1100N, so that the deformed part is plastically deformed, and the thermal rectification process of the present invention is completed. This rectification method can effectively avoid the occurrence of seco...

[0024] Firstly, the deformation part of the titanium alloy special-shaped tubular casting is determined, and an anti-oxidation coating (KBC-12) of 0.4mm is coated on this part. According to the cross-sectional shape of the special-shaped tubular casting, the 7-turn induction coil is designed and manufactured. The tubular casting and the mold are fixed in the induction coil through tooling and fixtures, so that the gap between the coil and the casting reaches 35mm, and the induction coil is moved to the deformed part through the transmission device. Gradually increase the induction power to 60kw within 90s, the frequency is 5000Hz, remove the induction coil after heating for 30s. Utilize a hydraulic press to apply an external force to the heating part, and the correcting external force is 1300N, so that the deformed part is plastically deformed, and the thermal rectification process of the present invention is completed. This rectification method can effectively avoid the occurr...