Electric heating preparation method for copper-aluminum alloy raw material

A copper-aluminum alloy and raw material technology, which is applied in the field of electrothermal preparation of copper-aluminum alloy raw materials, can solve the problems of increasing the production cost of copper-aluminum alloy, high cost of copper-aluminum alloy raw materials, complicated processes, etc., and achieves excellent performance, reduced production cost and process. easy effect

Inactive Publication Date: 2019-05-17
李康宁
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Problems solved by technology

The kaolin concentrate in the raw materials used is obtained by beneficiating kaolin through complex processes, and its cost is much higher than that of kaolin; the carbon reducing agent in the raw materials used is mainly petroleum coke, and a small amount of bituminous coal is used, and its cost is relatively high; therefore, the produced The cost of raw materials for copper and aluminum alloys is relatively high
In addition

Method used

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Embodiment

[0040] 1. Put alumina, kaolin produced in Shuozhou, Shanxi processed by step 1 in the production method of the above-mentioned copper-aluminum alloy, and bituminous coal produced in Shenfu Coalfield, Shaanxi respectively in the raw material tank; The density of 3 tons of sodium sulfonate prepared with hot water at 35°C is 1.12 g / cm 3 The sodium lignosulfonate liquid is put into the insulation raw material tank.

[0041] 2, with the ratio of 58 tons of kaolin, 6 tons of alumina, 36 tons of bituminous coal, and 20 tons of the above-mentioned sodium lignosulfonate liquid, the copper-aluminum alloy is produced according to steps 3 and 4 in the production method of the above-mentioned copper-aluminum alloy, and the output per hour is 1 ton of copper and aluminum alloys. The weight percentage composition of the following elements in the copper aluminum alloy includes: aluminum 56, silicon 39, titanium 1.0, iron 1.0 calcium 0.4, carbon 1.4 and other impurities 1.2.

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Abstract

The invention discloses an electric heating preparation method for a copper-aluminum alloy raw material. The copper-aluminum alloy raw material comprises the following components of, by weight percent, 49-58% of kaolin with Cu2O3 weight percentage less than or equal to 1%, 5-13% of aluminum oxid, 34-38% of bituminous coal with volatile weight percentage more than or equal to 32%, and sodium ligninsulfonate liquid accounting for 20-22% of the total weight of the three mentioned raw materials, prepared by hot water at 30-60 DEG C and having a density of 1.100-1.200 g/cm<3>. According to the electric heating preparation method for the copper-aluminum alloy raw material, the high-quality kaolin and the bituminous coal produced in China are adopted, cost of the copper-aluminum alloy raw material is low and reduced by 15-20%, meanwhile harmful substances contained in the copper-aluminum alloy are less, and an impurity removal process is simple and convenient. The copper-aluminum alloy prepared by the preparation method for the copper-aluminum alloy raw material equally includes the following elements of, by weight percent, 56.7% of Al, 38.8% of Si, 0.87% of Ti, 1.3% of Fe, 0.37% of Ca, 1.5% of C and 0.5% of other impurities.

Description

technical field [0001] The invention relates to a raw material for preparing copper-aluminum alloy, in particular to an electrothermal preparation method of copper-aluminum alloy raw material. Background technique [0002] At present, a copper-aluminum alloy raw material electrothermal preparation method in Ukraine includes: kaolin concentrate, kyanite-sillimanite concentrate, alumina, carbon reducing agent and binder-sodium sulfonate. The kaolin concentrate in the raw materials used is obtained by beneficiating kaolin through complex processes, and its cost is much higher than that of kaolin; the carbon reducing agent in the raw materials used is mainly petroleum coke, and a small amount of bituminous coal is used, and its cost is relatively high; therefore, the produced The cost of raw materials for copper and aluminum alloys is relatively high. In addition, due to the impurities contained in the kyanite-sillimanite concentrate in the raw material such as ZrO 2 SiO 2 、T...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22B4/06
Inventor 李康宁
Owner 李康宁
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