A method for continuous production of tantalum or tantalum alloy large size wire, characterized by: First rolling into the diamond of tantalum and tantalum alloy billet using roller die drawing machine or rolling mill, it become the cleaning, washing, drying and middle prestressed after annealing treatment, using 1 ~ 10 mm pointing machine mould requirements rolled into the required size, then pointing of tantalum and tantalum alloy round bar after the introduction of wire drawing machine, after multichannel continuous large size drawing for tantalum or tantalum alloy wire. The invention makes use of drawing technology and welding technology to realize continuous, automatic, high efficiency and clean production of tantalum or tantalum alloy large size wire. Through the invention, the finished wire material below Ф7.0mm can be produced, and the continuous drawing of large size tantalum bar can be realized, and the working efficiency is high, the labor intensity is small, and the working environment is improved.
Tantalum or tantalum alloy wire is mainly used in : making heating belt of high temperature vacuum furnace, heating element in chemical industry, valve spring and tantalum net. The tantalum mesh has excellent corrosion resistance to concentrated alkali solution, and excellent corrosion resistance to alkaline and neutral solution media of carbonate, nitrate, chloride, vinegar and other salts. It is also resistant to fatty acid corrosion and stable in atmosphere, fresh water and sea water. Tantalum mesh is widely used in alkali making industry, chlor-alkali chemical industry and organic chloride production, food processing, vacuum electrical components, electronic instruments, water treatment, high temperature halogen and so on. Tantalum and tantalum alloy made of rivets, screws and nuts. (3) used in the production of tantalum electrolytic capacitor anode lead, manufacturing process of tantalum electrolytic capacitor is usually used to tantalum powder embedded in die form compact tantalum suppression, the briquette in the vacuum furnace burning form between particles of interconnected porous body, then the porous sintered body in the proper electrolyte to the anode oxidation, surface of porous particles formed uniform interconnected dielectric oxide film, The anode is formed, and then the cathode material is coated on the surface of the oxide film, and then the anode and cathode of the capacitor are encapsulated and formed.
Kind of continuous production of tantalum and tantalum alloy large size wire method, its character is: the first will be rolled into the diamond of tantalum and tantalum alloy billet using roller die drawing machine or rolling mill, it become the cleaning, washing, drying and middle prestressed after annealing treatment, the I ~ 1 mm pointing machine mould requirements rolled into the required size, then pointing of tantalum and tantalum alloy round bar after the introduction of wire drawing machine, The large size wire of tantalum or tantalum alloy is obtained after multiple passes of continuous drawing.
