A notable feature of titanium plate is the strong corrosion resistance. This is because it has a particularly strong affinity for oxygen and can form a dense oxide film on its surface, which can protect titanium from medium corrosion. It has good stability in acidic, alkaline, neutral saline solutions and oxidizing media, and its corrosion resistance is better than that of existing stainless steel and other commonly used non-ferrous metals.
The quality of titanium plate is largely determined by the titanium plate manufacturer's smelting process, including the chemical composition of the titanium, the cleanliness of the titanium water (gases, harmful elements, inclusions), and the quality of the ingot (composition segregation, decarburization, and surface condition). These aspects are key control points in the smelting operation.
In addition, industrial titanium plate must have sufficient hardenability to ensure uniform microstructure and mechanical properties across the entire spring cross-section. The primary cause of fatigue cracks is oxide inclusions in titanium, with Class D inclusions being more detrimental to fatigue life than Class B inclusions. Therefore, international titanium and automotive manufacturers have established higher standards for oxide inclusions in industrial titanium plate. For example, the Swedish SKF standard requires an oxygen content of less than 15×10⁻⁶ in titanium and a lower level of Class D inclusions than Class B inclusions. Al₂O₃ and TiN inclusions are particularly detrimental to the fatigue life of titanium springs. To produce high-quality industrial titanium plate, specialized smelting methods such as electric furnace-electroslag remelting or vacuum arc remelting were typically used.
Due to the unique physical and chemical properties of titanium, its welding process differs significantly from that of other metals. Titanium welding utilizes a TiG (Titanium Gas) welding process that effectively protects the weld zone with inert argon gas. Before using argon, verify the purity of the gas by checking the factory certificate on the bottle. Then, check the bottle valve for leaks or malfunctions.
When welding titanium, the following must be ensured:
The metal in the weld zone must be free from contamination by reactive gases such as NOx and harmful impurities such as CFeMn at temperatures above 250°C. The purity must be no less than 99.98%, and the water content must be less than 50 mg/m³. Argon: Industrial Grade 1 pure argon. Coarse grains must not form.
The welding process must follow a predetermined sequence, and significant residual stresses and deformation must be avoided. Therefore, strict process quality management standards must be adhered to, and quality control must be implemented throughout the entire process. This ensures that all factors, including personnel, machinery, materials, and methods, are under good control, ensuring quality within a reasonable construction schedule.
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Baoji Reliab Metal Materials Co.,Ltd
Tel: +86-917-8883215
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