1. Titanium high-pressure elbow is not widely used. Due to the influence of titanium seamless pipe specification, elbows above DN150 are made by pressing two pieces.
2. The material requirements of titanium are generally TA1, Because it has good elongation and is suitable for deformation, cracks are not easy to appear in the press molding.
3. The profiled titanium elbow shall be subject to stress relief annealing. It is best to anneal in a vacuum. The oxide scale on the surface after annealing must be cleaned, borax or alkali pickling.
4. During welding, argon purity is required to be 99.99%, and more than 6 thicknesses shall be welded on both sides.
5. 100% X-ray flaw detection is required for welds
6. After welding, the weld shall be subject to stress relief annealing
7. Both ends shall be cut to the standard size by wire cutting or water, and the cut surface shall be free of oxide skin.
8. Dye flaw detection shall be carried out on the surface of finished products.
9. The titanium elbows shall be packed in wooden cases when leaving the factory.
