As consumers pay more attention to drinking water health and lightweight vessels, titanium cups are moving from "niche high-end" to a broader market. However, titanium metal is far more difficult to process than stainless steel, and its forming, welding, and surface treatment processes are a key benchmark for measuring the technical depth of a cup processing enterprise.
Titanium metal has low density, high strength, corrosion resistance, and good biological compatibility, but this also means it places almost harsh requirements on processing technology. The deep drawing and stretching process that is mature in stainless steel cup processing often does not work when directly applied to titanium material. Titanium material has low elongation, severe springback, and an obvious tendency toward work hardening. This means that in the cup body forming stage, more precise mold design and multi-pass drawing processes are often required to avoid cup wall cracking or wrinkling and to ensure the dimensional accuracy of the inner liner and outer cup.
What truly sets titanium cup quality apart is welding and vacuum technology. Titanium easily reacts with elements such as oxygen, nitrogen, and hydrogen at high temperatures, causing weld seams to become brittle and discolored. Therefore, titanium cup welding usually must be carried out in a vacuum environment or under high-purity inert gas protection. In titanium cup processing, Wotai adopts precise laser welding technology combined with strict protective measures to ensure that the cup body weld seams are flat and airtight, which is the basis for subsequent vacuumizing to achieve long-lasting heat preservation.
The most eye-catching surface crystallization coloring process of titanium cups is even more a precise control of "temperature and vacuum." Pure titanium itself is silver-gray, but through specific vacuum heat treatment, a dense oxide film grows on its surface, and under light interference it presents natural colors such as golden yellow, deep blue, and violet. This process requires multi-stage stepped heating and holding in a vacuum furnace, with temperatures reaching above 1100°C, and extremely strict requirements for vacuum stability. Wotai Technology has a mature vacuum heat treatment production line, and through precise temperature control curves, it can enable each titanium cup to retain the true color of the metal while obtaining a unique crystalline texture and color aesthetics.
From material adaptation to crystallization temperature control, titanium cup processing tests the comprehensive heritage of a manufacturing system. Wotai Technology extends the precision genes of stainless steel cup manufacturing to the emerging track of titanium cups, providing brand customers with a one-stop titanium cup processing solution from structural design to surface treatment.