Introduction to the Manufacturing Process of Titanium Flanges

The production and manufacturing technology of titanium plate welded flanges is a topic of much discussion. Many people have questions about titanium plate welded flanges, particularly the quality, which is often considered inferior to forged welded flanges. To address this, a professional titanium flange manufacturer has conducted research on the welding process and quality of titanium plate flanges. Gr3 Pure Titanium Foil / titanium alloy flange / ASTM F67 Gr2 Titanium Sheet

Firstly, regarding welding quality, our staff explains that the actual quality of titanium plate welded flanges is the same as that of forged welded flanges. However, during the entire manufacturing process, the raw materials for titanium plate welded flanges are rarely inspected. Therefore, titanium plate welded flange materials without systematic testing after production cannot meet quality standards. This is why the quality of titanium plate welded flanges sold on the market cannot compare with that of forged welded flanges.

So, what exactly is the welding method for titanium plate flanges?

Before welding, the machines and equipment must be inspected and adjusted to ensure their normal operation. Then, φ4.0J402 welding wire is prepared in advance. Ideally, it should be dried at 300℃-350℃ for one hour.

During welding, the conical flange and the large flange must be assembled according to the engineering drawings, and then the large flange is divided into eight equal parts. At this point, due to the flange thickness and large weld seam, careful attention must be paid to the welding; therefore, symmetrical and double-layer welding must be selected according to the cross-section.

After welding, the titanium flange must at least reach the compressive strength of the butt weld and the weld surface must be smooth and clean, without defects such as pores, weld beads, or weld leaks, and the misalignment must be less than 3mm. That is a standard flange.