Method for preparing aluminum-silicon alloy by using high-iron-content ZL102 infiltrated aluminum alloy and aluminum-silicon alloy

Abstract

The invention provides a method for preparing an aluminum-silicon alloy by using a high-iron-content ZL102 infiltrated aluminum alloy and the aluminum-silicon alloy. Technical problems that a recoveryrate of a process for recycling high-iron-content ZL102 is only 1%, but a yield of the high-iron-content ZL102 is 5%, the recovery rate is low, and economic losses are large in the prior art are solved. The method comprises the following steps of (1) adding manganese into the ZL102 infiltrated aluminum alloy with a high iron content and remelting to obtain a remelted ZL102 ingot with a refined iron phase; and (2) preparing the aluminum-silicon alloy. After the manganese is added into the ZL102 alloy with the high iron content and remelting is performed, and an iron phase structure is shortened and thinned so as to obtain the remelted ZL102 ingot with a refined iron phase; an adding amount can reach 5% of total weight of the aluminum-silicon alloy and can be completely counteracted with output, the recovery rate is greatly increased, and the economic losses are avoided.

Description

technical field [0001] The invention relates to a recovery process of high-iron-content ZL102 infiltrated aluminum alloy, in particular to a method for preparing aluminum-silicon alloy by using high-iron-content ZL102 infiltrated aluminum alloy and the aluminum-silicon alloy. Background technique [0002] In the prior art, the first ring groove of the aluminum piston is inlaid with a cast iron ring to increase wear resistance and thermal conductivity. The cast iron insert is put in when the aluminum piston is cast. In order to ensure the bonding rate and bonding strength between the cast iron insert and the aluminum piston, the cast iron insert needs to be aluminized. [0003] The aluminizing treatment uses the ZL102 alloy, and as the aluminizing proceeds, the iron content of the ZL102 alloy can be as high as 6%. According to the production situation, generally speaking, every 20 tons of ring-mounted pistons will produce 1 ton of ZL102 with high iron content, and the output...

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Problems solved by technology

[0012] The purpose of the present invention is to provide a method for preparing aluminum-silicon alloy and aluminum-silicon alloy by using high-iron-content ZL102 infiltrated aluminum alloy, so as to solve the process of recovering high-iron-content ZL102 in the prior art, the recovery rate is only 1%, and The output rate of ZL102 with high iron content is 5%, the recovery rate is low, and the technical problems of large economic losses

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