Phosphorus-doped aluminum alloy and manufacture method thereof

A manufacturing method and technology for aluminum alloys, applied in the field of aluminum-based alloys, can solve the problems of slow solidification of alloys, large porosity, affecting the mechanical properties of castings, etc., and achieve the effect of fast shrinkage speed and high mechanical properties of castings

Inactive Publication Date: 2012-05-30
SHANGHAI WANTAI ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of mechanical manufacturing, cast aluminum alloys are mostly used, but the current cast aluminum alloys still have the problem of slow alloy solidification, which makes the porosity of the cast products larger due to shrinkage, which affects the mechanical properties of the castings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An aluminum alloy doped with phosphorus, including aluminum, phosphorus and silicon, the mass ratio of silicon to aluminum is 0.12, and the mass ratio of phosphorus to aluminum is 0.008%.

[0014] A method for manufacturing an aluminum alloy mixed with phosphorus, comprising six steps of batching, melting, stirring, adding phosphorous copper, degassing and casting in sequence; = 0.12 and mix evenly; when melting, heat the raw materials in the furnace until they are molten; when stirring, stir the molten aluminum with a stirrer; when adding phosphorus copper, the mass ratio of phosphorus to aluminum is 0.008%, The temperature of the molten aluminum is controlled at 855°C, and the mass percent concentration of phosphorous copper added is 8%.

Embodiment 2

[0016] An aluminum alloy doped with phosphorus, including aluminum, phosphorus and silicon, the mass ratio of silicon to aluminum is 0.13, and the mass ratio of phosphorus to aluminum is 0.01%.

[0017] A method for manufacturing an aluminum alloy mixed with phosphorus, comprising six steps of batching, melting, stirring, adding phosphorus copper, degassing and casting in sequence. When adding phosphorus copper, the mass ratio of phosphorus to aluminum is 0.01 %, the temperature of the molten aluminum is controlled at 870°C, and the mass percent concentration of phosphorous copper added is 10%. Other steps are all the same with embodiment 1.

Embodiment 3

[0019] An aluminum alloy doped with phosphorus, including aluminum, phosphorus and silicon, the mass ratio of silicon to aluminum is 0.15, and the mass ratio of phosphorus to aluminum is 0.012%.

[0020] A method for manufacturing an aluminum alloy doped with phosphorus, comprising six steps of batching, melting, stirring, adding phosphorus copper, degassing and casting in sequence. When adding phosphorus copper, the mass ratio of phosphorus to aluminum is 0.012 %, the temperature of the molten aluminum is controlled at 885°C, and the mass percent concentration of phosphorous copper added is 12%. Other steps are all the same with embodiment 1.

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Abstract

The present invention relates to the field of an aluminum-base alloy adopting silicon as a subordinate main component, and specifically to a phosphorus-doped aluminum alloy and a manufacture method thereof. The phosphorus-doped aluminum alloy comprises aluminum and silicon, wherein a mass ratio of the silicon to the aluminum is 0.12-0.15. The phosphorus-doped aluminum alloy is characterized in that: the phosphorus-doped aluminum alloy further comprises phosphorus, wherein a mass ratio of the phosphorus to the aluminum is 0.008-0.012%. The manufacture method for the phosphorus-doped aluminum alloy sequentially comprises five steps of material preparing, melting, stirring, degassing and casting, and is characterized in that: the method further comprises: adding phosphor-copper, wherein the phosphor-copper adding step is performed between the stirring step and the degassing step, and the aluminum liquid temperature is controlled to 855-885 DEG C during the phosphor-copper adding process. With the present invention, the shrinking speed is rapid during casting, and the mechanical property of the cast is high.

Description

technical field [0001] The invention relates to the field of aluminum-based alloys with silicon as the secondary main component, in particular to an aluminum alloy doped with phosphorus and a manufacturing method thereof. Background technique [0002] Aluminum alloys are widely used in aviation and automobile fields due to their light weight and corrosion resistance. In the field of mechanical manufacturing, cast aluminum alloys are mostly used, but the current cast aluminum alloys still have the problem of slow alloy solidification, which makes the porosity in the cast products larger due to shrinkage, which affects the mechanical properties of the castings. Contents of the invention [0003] In order to overcome the defects of the prior art and provide a cast aluminum alloy with fast shrinkage speed and high casting mechanical properties, the invention discloses an aluminum alloy doped with phosphorus element and a manufacturing method thereof. [0004] The present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03
Inventor 徐宏应伟勇
Owner SHANGHAI WANTAI ALUMINUM
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