A kind of liquid die forging aluminum alloy sy04 and preparation method thereof

A technology of liquid die forging and aluminum alloy, which is applied in the field of liquid die forging aluminum alloy SY04 and its preparation, can solve the problems of destroying material fluidity and solid solution strengthening, lead is harmful to the human body, and physical properties decline, and achieve good deformation Processing technology performance, low melting cost, and the effect of improving strength and toughness

Active Publication Date: 2022-08-02
邢书明 +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing aluminum alloys for liquid die forging, such as A356, ADC10, ADC12, etc., generally have a silicon content of more than 4%, or even as high as 10%. Although they have good casting fluidity and machining performance, their welding performance is poor. In order to improve the welding performance of aluminum alloy castings, it is necessary to reduce the silicon content in the formula of aluminum alloy castings, or add an appropriate amount of lead. However, lead is harmful to the human body. For products that come into contact with the human body, there is currently a clear definition of the content of lead elements. However, to ensure that aluminum alloy castings have good welding performance, the lead content must exceed the safety standard. If you are in contact with aluminum alloy castings with excessive lead content for a long time, it will cause certain harm to the human body.
In addition, the addition of lead will also reduce the physical properties of aluminum alloy castings in other aspects, reduce the silicon content, and destroy the fluidity and solid solution strengthening of the material, so it is necessary to improve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of liquid die forging aluminum alloy sy04 and preparation method thereof
  • A kind of liquid die forging aluminum alloy sy04 and preparation method thereof
  • A kind of liquid die forging aluminum alloy sy04 and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Liquid die forging aluminum alloy SY04, the mass percentage of each component is shown in Table 1:

[0029] Table 1

[0030]

[0031]

[0032] (2) Prepare raw materials by mass percentage: aluminum alloy remelting ingot, aluminum-magnesium-silicon deformed aluminum alloy scrap, SY04 alloy return material, crystalline silicon, copper rice, magnesium ingot, aluminum-titanium-boron refiner, strontium salt, rare earth Lanthanum, electrolytic manganese.

[0033] Aluminum alloy remelting ingot: the main alloying elements are silicon and magnesium, of which silicon≤10%, magnesium≤2%;

[0034] Aluminum-magnesium-silicon deformed aluminum alloy scraps: including scraps of commonly used alloys such as 6061, 6082, 6066, 6063, and iron content ≤ 0.6%;

[0035] SY04 alloy return material: the residual material of the pouring riser process, the cake and the waste products formed by this alloy are rare earth lanthanum, electrolytic manganese, crystalline silicon, copper ri...

Embodiment 2

[0041] With embodiment 1, the difference is that the raw materials in step (2) are aluminum alloy remelting ingot, aluminum-magnesium-silicon deformed aluminum alloy scrap, SY04 alloy return charge, aluminum-silicon master alloy, aluminum-copper master alloy, aluminum-magnesium intermediate Alloy, aluminum titanium boron refiner, aluminum strontium master alloy, rare earth cerium, electrolytic manganese.

Embodiment 3

[0043] With embodiment 1, the difference is that the mass percent of each component of step (1) is as shown in table 2:

[0044] Table 2

[0045] Element Mass percentage (%) Si 3.9 Mg 1.0 Cu 1.5 Rare Earth Elements 0.2 Sr 0.02 Ti 0.20 Mn 0.1 Fe 0.3 Al and impurities margin

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a liquid die forging aluminum alloy SY04 and a preparation method thereof, belonging to the technical field of alloy preparation. The preparation method of the aluminum alloy SY04 includes the following steps: remelting the aluminum alloy ingot, the aluminum-magnesium-silicon-based deformed aluminum alloy scrap, and the SY04 alloy return material, heating and melting, and then adding silicon and copper when the temperature is 700-780 ° C. and magnesium, melt evenly; adjust the temperature to 700 ~ 750 ℃, then add aluminum-titanium-boron refiner, strontium, rare earth and electrolytic manganese, melt evenly, add refining agent, refine to obtain liquid die-forged aluminum alloy liquid, cast ingot Afterwards, liquid die forging aluminum alloy SY04 is obtained. The aluminum alloy SY04 prepared by the invention is suitable for direct liquid die forging, indirect liquid die forging, low pressure casting and die casting aluminum alloy parts, and can also be cold worked, and has excellent performance.

Description

technical field [0001] The invention relates to the technical field of alloy preparation, in particular to a liquid die forging aluminum alloy SY04 and a preparation method thereof. Background technique [0002] Liquid die forging is to pour molten metal into the mold cavity, and solidify and form the molten metal under the direct action of pressure. Liquid die forging is a metal forming technology that combines casting and forging. It not only has the advantages of simple casting process, low production cost, and can form parts with complex shapes, but also has the advantages of fine grain and uniform structure of die forging parts. , Good mechanical properties and high forming accuracy, it has broad application prospects in electronic appliances, automobiles, rail transit, aerospace, weaponry and other fields. [0003] However, the existing aluminum alloys for liquid die forging, such as A356, ADC10, ADC12, etc., generally have a silicon content of more than 4%, or even a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): C22C21/04C22C1/03
CPCC22C21/04C22C1/026C22C1/03C22C32/0078
Inventor邢书明欧黎明甘玉秀侯景路杨茂秀李江邢三臭
Owner邢书明