Process method for reopening old furnace of cored line-frequency induction electric furnace for producing copper-nickel alloy
A technology of induction electric furnace and process method, which is applied to the improvement of process efficiency, furnace, crucible furnace, etc., which can solve the problems of not being able to stop and start immediately, less investment in equipment, and low power consumption, so as to prolong the absolute service life and reduce production. Cost, guarantee the effect of repeated use
Inactive Publication Date: 2010-06-02
洛阳双瑞达特铜有限公司
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[0002] Among the main equipment used in the production of copper alloys, the main advantages of the power frequency cored induction furnace are: less investment in equipment, high electrical efficiency, and low power consumption per unit product; slag-free casting can be achieved, and the quality of the ingot is higher; the main disadvantages Yes: Compared with the medium frequency coreless electric furnace with the same capacity, the cored power frequency induction furnace has a slower melting speed, which is suitable for large-scale, continuous and single-species production. It cannot be stopped and started immediately, and it is not easy to c
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[0015] The present invention is further described in conjunction with the embodiment that accompanying drawing provides:
[0016] A process method for reopening an old furnace with a cored power frequency induction furnace for producing white copper, the specific operation steps are:
[0017] a. Before the shutdown of the white copper with a cored power frequency induction furnace, add electrolytic copper for alloying and smelting to dilute the impurity composition of the melting groove mold, so that the nickel content of the white copper melting groove mold will be reduced to less than 3% when the old furnace is reopened. At the same time, the composition of iron and manganese is reduced to less than 0.5%. By reducing the content of nickel, iron and manganese in the melting channel mold, the temperature of the melting channel mold is lowered to prepare for the next furnace start;
[0018] b. Check whether the main circuit, control circuit and cooling water system are normal b...
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The invention discloses a process method for reopening an old furnace of a cored line-frequency induction electric furnace for producing a copper-nickel alloy, comprising the following steps of: adding impurity components obtained by alloying and smelting electrolytic copper for diluting a smelt groove die before stopping the cored line-frequency induction electric furnace for producing the copper-nickel alloy; introducing cooling water before opening the furnace, feeding 240 V of electricity to check a main circuit, a control loop and a cooling water system in a short time; inducting and heating to smelt the smelt groove die by an iron core coil to communicate the smelt groove die by adopting a mode of adjusting the voltage to gradually and stably rise; and heating an upper hearth and the smelt groove die while feeding electricity and baking to smoothly fuse the smelt groove die in a short time. The invention ensures the reuse of the old furnace, prolongs the absolute service life of the cored line-frequency induction electric furnace, saves the fees of the cored line-frequency induction electric furnace for building and casting the furnace and reduces the production cost of each ton of products.
Description
technical field [0001] The invention belongs to the technical field of starting an old furnace of a cored power-frequency induction furnace, and mainly relates to a process method for restarting an old furnace of a cored power-frequency induction furnace for producing white copper. Background technique [0002] Among the main equipment used in the production of copper alloys, the main advantages of the power frequency cored induction furnace are: less investment in equipment, high electrical efficiency, and low power consumption per unit product; slag-free casting can be achieved, and the quality of the ingot is higher; the main disadvantages Yes: Compared with the medium frequency coreless electric furnace, the cored power frequency induction furnace with the same capacity has a slower melting speed, which is suitable for large-scale, continuous and single-species production. It cannot be stopped and started immediately, and it is not easy to change the alloy grade. Every t...
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Login to view more IPC IPC(8): F27B14/06C22C9/06
CPCY02P10/25
Inventor 陈卫郜贞轩詹尧
Owner 洛阳双瑞达特铜有限公司
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