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A high-zinc-aluminum-manganese-iron-copper alloy used for manufacturing electrode wires for unidirectional wire travel
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A technology of electrode wire and copper alloy, applied in the field of high-zinc-aluminum-manganese-iron-copper alloy, which can solve the problems of expensive production equipment, complicated preparation process, and numerous procedures
Active Publication Date: 2019-04-23
NINGBO BODE HIGHTECH CO LTD +1
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[0008] At present, for the preparation method of electrode wire for unidirectional wire electric spark erosion machining, the extrusion method and the horizontal continuous casting method are generally adopted: the above two methods are used to manufacture the billet rod, and after intermediate annealing and pressure processing, the core rod is made. Then the finished product is processed into the electrode wire required by the customer, but these two methods have problems such as complicated preparation process, numerous procedures, and expensive production equipment (one extruder costs 20 million RMB), which makes the Its production cost increases
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[0042] 1.1. For the discharge waste wire recycled by the customer, purchase aluminum, manganese, magnesium, silicon, sodium, lithium, potassium, calcium, and phosphorus at an appropriate market price, and start batching after passing the chemical analysis;
[0043] 1.2. According to the alloy composition shown in Table 1, mix ingredients with appropriate losses, and transport the prepared raw materials to the smelting site for smelting;
[0044] 1.3. Melting is an important process for manufacturing electrode wire materials. All the addition of alloying elements is completed in this process. Melting adopts continuous casting by upward drawing method, and the casting temperature is selected between 950-1080°C;
[0045] 1.4. The feeding sequence is: input of discharge waste wire → chemical analysis → copper and zinc compensation → input of one or more of cryolite, borax, glass → stirring → input of trace elements or their intermediate alloys → stirring → aluminum, manganese Or t...
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Abstract
The invention provides a high-zinc-aluminum-manganese-iron-copper alloy for manufacturing of a wire electrode for one-way wire winding. The high-zinc-aluminum-manganese-iron-copper alloy is characterized by comprising, by weight, 37.0-42.0% of zinc, 0.0005-0.85% of aluminum, 0.005-0.5% of manganese, 0.01-0.30% of iron, 0.0005-0.01% of microelements, impurities composed of one or several of V, Cr, Ni, Mo, Co, Ti, W and C, less than 0.5% of other inevitable impurity elements, and the balance copper, wherein the microelements include one or more of magnesium, silicon, sodium, lithium, potassium, calcium and phosphorus; the content of all the elements in the impurities is less than 0.005%; the iron and part of copper and zinc are obtained after discharged waste wires are subjected to cleaning and impurity removal. Compared with the prior art, the wire electrode manufactured through the method is stable in gasification performance, higher in mechanical performance, low in processing cost and wide in application and has broad market prospects.
Description
technical field [0001] The invention relates to a copper alloy, in particular to a high-zinc-aluminum-manganese-iron-copper alloy used for manufacturing electrode wires for unidirectional wire feeding. Background technique [0002] Slow-moving wire EDM, my country's metallurgical industry standard calls unidirectional wire EDM for CNC machine tools, and the professional field has also become electric corrosion machining (EDM: Electrical Discharge Machining). A tool electrode material used in electrical discharge machining. [0003] Unidirectional wire EDM is a precision machining method. It has been more than 30 years since it was introduced into China in the 1980s. More than 85% of the unidirectional wire EDM electrode materials used in the Chinese mainland market are electrode wires made of ordinary brass alloys. There are also a small number of slow-moving wire users who use composite copper alloy electrode wires. However, due to the backwardness of slow-moving wire disc...
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