Several instructions for making titanium elbows:
1. Titanium high-pressure elbows are not widely used. Due to the influence of the specifications of titanium seamless pipes, elbows above DN150 areMade by pressing 2 pieces.
2. The material requirements for titanium are generally TA1. Since TA1 material has good elongation and is suitable for deformation during molding, it does not cause problems during molding.Cracks are prone to occur.
3. Pressed finished products must undergo stress relief annealing. It is best to vacuum anneal. The oxide scale on the surface after annealing must be cleaned., borax or alkali pickling.
4. The purity of argon gas is required to be 99.99% during welding, and double-sided welding is required if the thickness is more than 6.
5. Welds require 100% X-ray flaw detection
6. After welding, the weld seam shall be stress relieved and annealed.
7. Both ends are required to be wire cut or water cut to standard sizes, and there should be no oxide scale on the surface after cutting.
8. The surface of the finished product must be stained and inspected for flaw detection.
9. The goods must be packed in wooden boxes when leaving the factory.