Deep Drawn Niobium Strip Metal’s Process Research

The oxide film formed on the surface of metal niobium also has unidirectional conductive properties, and has the conditions for making capacitors. However, because the oxygen solubility of niobium is much higher than that of tantalum, in the anodization process, a thermally stable oxide film cannot be obtained by the general heat treatment process, so the application of niobium electrolytic capacitors is limited. With the development of technology in recent years, many large capacitor manufacturers can produce niobium electrolytic capacitors with properties comparable to tantalum electrolytic capacitors through special processes, such as NEC Corporation. Capacitors are important components of all electronic instruments. As electronic circuits become more and more complex, the number of capacitors in each active device (integrated circuit) has increased significantly. Tantalum and niobium capacitors have the advantages of large capacity and small size, and the demand is also increasing. More and more. At the same time, niobium has the advantages of high reserves and low price, and more and more niobium capacitors are used.

Deep Drawn Niobium Strip Metal is mainly used in the electrolytic capacitor industry. Niobium electrolytic capacitors have better performance than aluminum electrolytic capacitors, and the price is cheaper than tantalum electrolytic capacitors, which has a promising future in the field of electrolytic capacitors. Deep Drawn Niobium Strip Metal is one of the main consumables in the niobium capacitor industry. It has high requirements for its internal structure, mechanical properties, thickness difference and plate shape.

Different production and processing technologies have different effects on Deep Drawn Niobium Strip Metal:

(1) In the forging process, in order to better crush and refine the grains and obtain uniform grains, two forgings and one

Intermediate heat treatment can achieve the purpose well.

(2) Through reversing rolling, the strip shape, thickness tolerance and product mechanical properties can be well resolved.

(3) 1100 ℃ × 90 min is a more suitable heat treatment process. After two forgings and one intermediate heat treatment, the niobium strip produced under the heat treatment conditions of 1100℃×90 min can well meet the requirements of deep drawing niobium strip.

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