Method for casting high-quality aluminum part through chips of aluminum-silicon pistons

An aluminum-silicon-based, high-quality technology, which is applied in the field of casting high-quality aluminum parts using aluminum-silicon-based piston chips, can solve the problems of aluminum chip oxidation corrosion and waste of raw materials, and achieve the effect of reducing oxidation burning loss and satisfying mechanical properties

Active Publication Date: 2015-11-11
CHENGDU GALAXY POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above-mentioned disclosed patents, when the waste aluminum chips are cleaned with clear water, the

Method used

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  • Method for casting high-quality aluminum part through chips of aluminum-silicon pistons
  • Method for casting high-quality aluminum part through chips of aluminum-silicon pistons
  • Method for casting high-quality aluminum part through chips of aluminum-silicon pistons

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Embodiment 1: a method for casting high-quality aluminum parts using aluminum-silicon-based piston chips, which includes the following steps:

[0025] S1. Inclusion melting: After recycling the machining aluminum-silicon piston chips, they are dried in time. After the magnetic separation process, the chips are quickly added to the natural gas reverberatory furnace for inclusion melting. The feeding time is 5 minutes, and the melting temperature is 740°C;

[0026] S2. Standing at high temperature: the natural gas reverberatory furnace is heated to 850 ℃ and kept for 50 minutes to generate molten aluminum;

[0027] S3. Component detection: The natural gas reverberatory furnace is added with the slag cleaning agent JLAZ powder to carry out slag removal. After the slag removal, the metal magnesium is pressed into the bottom of the aluminum liquid. After static for 5 minutes, the sample is analyzed and adjusted until the content of each component in the aluminum liquid meets ...

Example Embodiment

[0030] Embodiment 2: A method for casting high-quality aluminum parts using aluminum-silicon-based piston chips, which includes the following steps:

[0031] S1. Melting and melting: After recycling the machining aluminum-silicon piston chips, dry them in time. After the magnetic separation process, the chips are quickly added to the natural gas reverberatory furnace for melting and melting. The feeding time is 4 minutes, and the melting temperature is 780°C;

[0032] S2. Standing at high temperature: the natural gas reverberatory furnace is heated to 930 ℃ and kept for 90 minutes to generate molten aluminum;

[0033] S3. Component detection: The natural gas reverberatory furnace is added with the slag cleaning agent JLAZ powder to carry out slag removal. After the slag removal, the metal magnesium is pressed into the bottom of the aluminum liquid. After static for 9 minutes, the sample is analyzed and adjusted until the content of each component in the aluminum liquid meets th...

Example Embodiment

[0036] Embodiment 3: a method for casting high-quality aluminum parts using aluminum-silicon-based piston chips, which includes the following steps:

[0037] S1. Inclusion melting: After recycling the machining aluminum-silicon piston chips, they are dried in time. After the magnetic separation process, the chips are quickly added to the natural gas reverberatory furnace for inclusion melting. The feeding time is 3 minutes and the melting temperature is 750°C. ;

[0038]S2. High temperature standing: the natural gas reverberatory furnace is heated to 865 ℃, and the temperature is kept for 58 minutes to generate aluminum liquid;

[0039] S3. Component detection: The natural gas reverberatory furnace is added with the slag cleaning agent JLAZ powder to carry out slag removal. After the slag removal, the metal magnesium is pressed into the bottom of the aluminum liquid. After static for 6 minutes, the sample is analyzed and adjusted until the content of each component in the alum...

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Abstract

The invention discloses a method for casting a high-quality aluminum part through chips of aluminum-silicon pistons. The method includes the following steps that firstly, embracing and fusion are performed, wherein the machined chips of the aluminum-silicon pistons are recycled, dried and magnetically separated and are then added to a natural gas reverberatory furnace so as to be embraced and fused; secondly, high-temperature standing is performed, wherein the temperature of the natural gas reverberatory furnace is increased to 850 DEG C to 930 DEG C and kept for 50 min to 90 min, and molten aluminum is generated; thirdly, component detection is performed, wherein after slag of the molten aluminum is filtered out, magnesium is pressed to the bottom of the molten aluminum, after the molten aluminum stands still for 5 min to 9 min, a sample is obtained and analyzed, and the molten aluminum is adjusted till the content of each component in the molten aluminum meets the requirement; fourthly, refining and metamorphism are performed, wherein refining is performed before metamorphism; and fifthly, the aluminum part is cast, wherein when the temperature of the refined and metamorphosed molten aluminum ranges from 750 DEG C to 790 DEG C, the molten aluminum is treated through a degassing machine, stands still and is cast into the aluminum part. By the adoption of the method, complex equipment does not need to be invested, operation is easy, secondary aluminum burning losses can be reduced, energy is saved, consumption is reduced, the casting cost of the aluminum part is reduced, the waste aluminum chips are recycled, and the method is suitable for industrial large-scale production.

Description

technical field [0001] The invention belongs to the technical field of waste aluminum recycling, and in particular relates to a method for casting high-quality aluminum parts by using aluminum-silicon piston chips. Background technique [0002] Aluminum-silicon alloy, also known as "silicon-aluminum alloy" or "silicon-aluminum alloy", has good casting performance and wear resistance, and a small thermal expansion coefficient. It is the alloy with the most varieties and the largest amount of casting aluminum alloys. The silicon content is between 4% to 13%. Sometimes 0.2% to 0.6% magnesium is added, and it is widely used in structural parts, such as shells, cylinders, boxes and frames. Sometimes adding an appropriate amount of copper and magnesium can improve the mechanical properties and heat resistance of the alloy, which is widely used in the manufacture of pistons and other components. [0003] The aluminum chips produced after the piston is mechanically processed conta...

Claims

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Application Information

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IPC IPC(8): C22C21/04C22C1/06
Inventor 温志高何光驰徐昌友彭明诚袁仕田
Owner CHENGDU GALAXY POWER CO LTD
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