Operation method for controlling oxygen content during radio frequency electric cable strip casting process
An operation method and radio frequency cable technology, applied in the direction of electric furnace, drum furnace, crucible furnace, etc., can solve the problems of low production efficiency, product scrapping, high production cost, etc., and achieve the effect of reducing oxidation
Inactive Publication Date: 2015-03-11
JIANGSU HUANSHENG COPPER IND
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Problems solved by technology
In the production of radio frequency cable belts, the problem of product scrapping due to excessive oxygen content in the molten ingot often occurs, resulting in high production costs and low production efficiency
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The operation method for controlling the oxygen content in the radio frequency cable tape melting and casting process is characterized in that the content of each element in the radio frequency cable tape casting ingot is Cu≥99.975, P≤0.002, Bi≤0.001, Sb≤0.002, As≤0.002, Fe ≤0.002, Ni≤0.002, Pb≤0.002, Sn≤0.002, S≤0.002, Zn≤0.003, O tertiary, Cd≤0.005.
[0022] The operation steps are as follows:
[0023] 1) Check the metal furnace charge: cut the four sides of the purchased cathode copper; carefully remove the cathode copper with copper rust on the surface and copper beans; dry the cathode copper with moisture on the surface; produce and recycle the same side The material needs to be pickled and cleaned before use; the edge material with oil and moisture needs to be dried and degreased before use;
[0024] 2) Cover the melt with calcined charcoal, and calcine at a high temperature with the temperature controlled at 800-900°C for 4 hours to remove the moisture in the ch...
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The invention relates to an operation method for controlling oxygen content during a radio frequency electric cable strip casting process. Various elements of the radio frequency electric cable strip ingot comprise, by weight, more than or equal to 99.975% of Cu, less than or equal to 0.002% of P, less than or equal to 0.001% of Bi, less than or equal to 0.002% of Sb, less than or equal to 0.002% of As, less than or equal to 0.002% of Fe, less than or equal to 0.002% of Ni, less than or equal to 0.002% of Pb, less than or equal to 0.002% of Sn, less than or equal to 0.002% of S, less than or equal to 0.003% of Zn, three level O, less than or equal to 0.005% of Cd. According to the operation method of the present invention, calcined charcoal is adopted to cover the melt, such that rapid low temperature melting is achieved, and melt oxidation is reduced; a by pass system is sealed so as to prevent air suction oxidation; in order to save money, the mastered technology during application of the existing equipment of the three ton core induction electric furnace or the five ton core induction electric furnace to produce the radio frequency electric cable strip is adopted, such that control of the oxygen content is achieved, the problem of product rejection due to excessive oxygen content in the melt ingot is solved, product quality is ensured, and production efficiency is improved.
Description
technical field [0001] The invention relates to an operation method for controlling oxygen content in the melting and casting process of radio frequency cable strips. Background technique [0002] RF cable tapes have high requirements on the performance of materials, such as electrical conductivity, thermal conductivity, ductility, and mechanical properties. The standard selection is the national standard No. 2 oxygen-free copper. In the process of producing ingots, there are very strict requirements on the content of alloy impurities, especially the control of oxygen content is the key to the production technology of oxygen-free copper. The domestic production of oxygen-free copper strip mainly uses cored induction furnace melting. Semi-continuous casting, high-purity oxygen-free copper is smelted in a vacuum electric furnace. The company currently has a vertical three-ton melting and casting furnace group designed by Xi'an Electric Furnace, a five-ton horizontal cored po...
Claims
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IPC IPC(8): C22B15/00B22D21/00
Inventor 仇文秋
Owner JIANGSU HUANSHENG COPPER IND