A preparation method for directly producing copper ingots for environmental protection sanitary ware by using waste miscellaneous copper
A technology of waste miscellaneous copper and copper ingots, which is applied in the field of preparing copper ingots for environmental protection sanitary ware directly by using waste miscellaneous copper, can solve the problems of high raw material cost, high cost, complicated process, etc., and achieve low raw material cost, short process, Good polishing effect
Active Publication Date: 2022-02-15
JINTIAN COPPER GROUP CORP NINGBO
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Problems solved by technology
The raw materials of copper ingots for bathroom are more than 80% of red copper and zinc, and 20% of a single brand of recycled brass. The cost of raw materials is relatively high, and the recycled brass needs to go through the process of "waste brass-anode copper-cathode copper-brass" , complex process and high cost
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[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] The copper ingot preparation method of the embodiment of the present invention 1 to 3:
[0032] 1) Set the voltage of the smelting furnace to 380-420V, first add iron-removing copper powder and 2# red copper, then add aluminum rare earth and grain refiner;
[0033] 2) After it is melted, increase the voltage of the smelting furnace to 780-820V, and add broken copper in batches. boron alloy;
[0034] 3) After the copper water in step 2 is completely melted, adjust the voltage of the smelting furnace to 580-620V, take the copper water to test the composition, and add an appropriate amount of zinc ingot according to the composition ratio;
[0035] 4) Then add refining agent and slag remover, stir, and adjust the voltage to 380-420V for slag removal;
[0036] 5) Add magnesium ingots, keep the temperature of copper water at 1020-1060°C, a...
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The invention relates to a preparation method for directly producing copper ingots for environmental protection sanitary ware by using scrap copper, which is characterized in that it includes the following preparation process: 1) Set the voltage of the smelting furnace to 380-420V, first add iron-removing copper powder and 2# red copper , and then add aluminum rare earth and grain refiner; 2) After it melts, increase the voltage of the melting furnace to 780-820V, add broken copper in batches, and after each batch of broken copper is melted, lower the voltage to 380-420V, carry out the slag removal operation; finally add aluminum-boron alloy; 3) After the copper water in step 2 is completely melted, adjust the voltage of the melting furnace to 580-620V, take the copper water test composition, and add an appropriate amount according to the composition ratio Zinc ingots. The invention adopts waste miscellaneous copper as the main raw material, and the cost of the raw material is reduced; the grade of the copper ingot is first-class, and the structure grain is fine and uniform, which meets the use requirements of the copper ingot for bathroom.
Description
technical field [0001] The invention relates to a preparation method of copper ingots, in particular to a preparation method for directly producing copper ingots for environment-friendly sanitary ware by using waste miscellaneous copper. Background technique [0002] With the advancement of my country's urbanization process and the rapid development of the real estate market, my country's sanitary ware market has also developed rapidly. According to statistics from relevant state departments, the copper ingots used to produce sanitary valves are increasing at a rate of more than 20% every year. The demand for ordinary sanitary products The volume will be larger. The current sanitary products are mainly plumbing parts. Such products have extremely high requirements on surface quality, strength, toughness and other properties. Therefore, it is required that the copper ingot alloy base used must also have good organizational structure and mechanical properties. The raw material...
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IPC IPC(8): C22C1/03C22C9/04
CPCC22C1/03C22C9/04
Inventor 欧阳好郑良玉
Owner JINTIAN COPPER GROUP CORP NINGBO