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Energy-saving and efficient aluminum alloy casting process

An aluminum alloy and process technology, which is applied in the field of aluminum alloy melting and casting technology, can solve problems affecting the mechanical properties of aluminum alloy castings, insufficient mechanical properties of aluminum alloy materials, and uneven distribution of components, so as to achieve improved mechanical properties, excellent mechanical properties, and production high efficiency effect

Active Publication Date: 2015-07-15
XINGFA ALUMINUM CHENGDU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional aluminum alloy melting and casting process, aluminum-silicon alloy ingots cast through iron molds are generally added. Since the silicon phase structure of aluminum-silicon alloy ingots is relatively coarse and the distribution of components is uneven, the final result is The poor refinement of the silicon phase of aluminum alloy castings and the inhomogeneity of its composition seriously affect the mechanical properties of aluminum alloy castings, and generally no manganese is added in the traditional process, which also leads to insufficient mechanical properties of aluminum alloy materials; the traditional process The smelting temperature is 750-760°C, the refining temperature is 730-740°C, the energy consumption is large, the cost is high, and the production efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Complete the melting and casting process of aluminum alloy products according to the following steps:

[0013] (1) charge preparation;

[0014] (2) Furnace loading: Load the aluminum-silicon rods cast by the hot top;

[0015] (3) Melting: keep the temperature at 715-725°C;

[0016] (4) Add auxiliary materials: auxiliary materials include magnesium ingot and manganese agent, the purity of manganese agent is 75%, and the mass ratio of manganese agent and aluminum liquid is 0.8: 1000. When adding, first pry the manganese agent into powder and evenly with a shovel into the furnace;

[0017] (5) Stirring: Stir repeatedly with an iron griddle to make it completely melted;

[0018] (6) The first refining: keep the temperature at 695-705°C;

[0019] (7) Sampling analysis after slag removal: mainly analyze the specific content of its components, which is convenient for controlling the components of the product;

[0020] (8) Adjusting ingredients: according to the analysis r...

Embodiment 2

[0026] Complete the melting and casting process of aluminum alloy products according to the following steps:

[0027] (1) charge preparation;

[0028] (2) Furnace loading: Load the aluminum-silicon rods cast by the hot top;

[0029] (3) Melting: keep the temperature at 710-715°C;

[0030] (4) Add auxiliary materials: auxiliary materials include magnesium ingot and manganese agent, the purity of manganese agent is 75%, and the mass ratio of manganese agent and aluminum liquid is 0.8: 1000. When adding, first pry the manganese agent into powder and evenly with a shovel into the furnace;

[0031] (5) Stirring: Stir repeatedly with an iron griddle to make it completely melted;

[0032] (6) The first refining: keep the temperature at 690-695°C;

[0033] (7) Sampling analysis after slag removal: mainly analyze the specific content of its components, which is convenient for controlling the components of the product;

[0034] (8) Adjusting ingredients: according to the analysis r...

Embodiment 3

[0040] Complete the melting and casting process of aluminum alloy products according to the following steps:

[0041] (1) charge preparation;

[0042] (2) Furnace loading: Load the aluminum-silicon rods cast by the hot top;

[0043] (3) Melting: keep the temperature at 725-730°C;

[0044] (4) Add auxiliary materials: auxiliary materials include magnesium ingot and manganese agent, the purity of manganese agent is 75%, and the mass ratio of manganese agent and aluminum liquid is 0.8: 1000. When adding, first pry the manganese agent into powder and evenly with a shovel into the furnace;

[0045] (5) Stirring: Stir repeatedly with an iron griddle to make it completely melted;

[0046] (6) The first refining: keep the temperature at 705-710°C;

[0047] (7) Sampling analysis after slag removal: mainly analyze the specific content of its components, which is convenient for controlling the components of the product;

[0048] (8) Adjusting ingredients: according to the analysis r...

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Abstract

The invention discloses an energy-saving and efficient aluminum alloy casting process. The casting process comprises steps of preparing a furnace charge, charging a furnace, smelting, adding an auxiliary material containing a magnesium ingot, stirring, refining for the first time, sampling and analyzing after slagging off, adjusting component, refining for the second time, sampling and analyzing after slagging off, covering and standing by, and casting and molding. The casting process is characterized in that in the step of charging the furnace, a hot-top casted and molded aluminum silicon bar is charged; the smelting step is performed at 710-730 DEG C; in the step of adding the auxiliary material containing the magnesium ingot, a manganese agent with purity of 75% is added; and the steps of refining for the first time and refining for the second time are performed at 690-710 DEG C. For the casting process, by adding the hot-top casted and molded aluminum silicon bar in the step of charging the furnace, so that the smelting temperature and refining temperature are lower than those of the traditional process, and the cast aluminum alloy product is uniform and fine in texture, excellent in quality and good in mechanical performance; meanwhile, the casting process is saved in energy and high in production efficiency; in addition, the addition of the manganese agent is favorable for improvement of mechanical performance of the aluminum alloy product.

Description

technical field [0001] The invention relates to an aluminum alloy melting and casting process, in particular to an aluminum alloy melting and casting process. Background technique [0002] Aluminum alloy casting is the smelting and casting of aluminum alloy, among which the smelting process has the greatest impact on the quality of aluminum alloy castings. In the traditional aluminum alloy melting and casting process, aluminum-silicon alloy ingots cast through iron molds are generally added. Since the silicon phase structure of aluminum-silicon alloy ingots is relatively coarse and the distribution of components is uneven, the final result is The poor refinement of the silicon phase of the aluminum alloy castings and the inhomogeneity of its composition seriously affect the mechanical properties of the aluminum alloy castings, and generally no manganese is added in the traditional process, which also leads to insufficient mechanical properties of the aluminum alloy material;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C1/06C22C21/00
Inventor 温涛张家文
Owner XINGFA ALUMINUM CHENGDU