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Additive for aluminum alloy smelting and preparation method thereof

An additive and aluminum alloy technology, applied in the field of aluminum alloys, can solve the problems of low Si yield, low Ti yield, and burning loss of aluminum melt, so as to reduce material costs, reduce energy consumption, and save energy costs. Effect

Pending Publication Date: 2022-06-28
哈尔滨金铝科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] The main purpose of the present invention is to provide an additive for aluminum alloy smelting and a preparation method thereof, so as to solve the problem of existing additives for aluminum alloy smelting in the prior art or the Si yield rate is low, or the Ti yield rate is low, or Aluminum melt has burning loss, or high energy consumption

Method used

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  • Additive for aluminum alloy smelting and preparation method thereof
  • Additive for aluminum alloy smelting and preparation method thereof

Examples

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preparation example Construction

[0030] The present invention also provides a preparation method of the aforementioned silicon-titanium composite element additive for aluminum alloy smelting. The preparation method comprises: mixing silicon and titanium, and then sequentially melting and casting to obtain the silicon-titanium composite element additive; The weight ratio of silicon element and titanium element in the element additive is (6~8):(0.1~0.2).

[0031] Based on the foregoing reasons, the present invention pre-alloys the silicon and titanium elements to further optimize the structure and density of the silicon and titanium elements, so that it can have the following beneficial effects during subsequent aluminum alloy melting: First, the feeding method is simplified: silicon and titanium elements are added at the same time, and batch feeding is no longer required, which saves manpower and simplifies operation steps. Second, it saves energy: the silicon and titanium elements are pre-alloyed, omitting th...

Embodiment 1

[0041] Inject 2 tons of 553 molten silicon liquid (temperature is 1023 ℃) into the ladle, turn on the electromagnetic stirring of the ladle at a speed of 30r / min, and at the same time add 0.0447 tons of sponge titanium particles with a particle size of 0.1 to 0.3 mm into the molten silicon liquid, Continue to stir for 70 min, and control the temperature to not be lower than 1050°C during the stirring process. After stirring evenly, the mixed solution was cast into the iron mold through a continuous casting machine (vacuum degree of 96MPa) at a casting speed of 40mm / min. After cooling to room temperature, the finished product was obtained after mold release, crushing and screening.

[0042] The weight ratio of silicon and titanium in the finished product is about 6.07:0.13, and the density is about 2.95g / cm 3 , the specification is 50mm-100mm,

Embodiment 2

[0044] The only difference from Example 1 is that the weight ratio of silicon element and titanium element in the finished product is controlled to be 7.0:0.2, and the density is 2.92g / cm 3 .

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Abstract

The invention provides an additive for aluminum alloy smelting, the additive is a silicon-titanium alloy, and the weight ratio of a silicon element to a titanium element in the silicon-titanium alloy is (6-8): (0.1-0.2). When the composite additive is used in the aluminum alloy smelting process, compared with a traditional metal silicon additive, the composite additive is higher in density, the burning loss of the metal silicon element is greatly reduced, and therefore the actual yield of the silicon element is further increased. Meanwhile, compared with a traditional titanium additive, the titanium element is applied to the smelting process in a silicon-titanium alloy mode through the composite additive, the titanium element can be more easily melted into molten aluminum, and therefore the actual yield of the titanium element can be further increased. In addition, no extra flux needs to be added during smelting of the silicon-titanium composite element additive, and the silicon-titanium composite element additive is free of pollution and better in environmental protection property.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular, to an additive for aluminum alloy smelting and a preparation method thereof. Background technique [0002] The global automotive wheel materials have mainly experienced the evolution process of steel materials and alloy materials (such as aluminum alloys), and currently aluminum alloy wheels are the main ones. From the perspective of the development of aluminum alloy wheels, steel wheels have dominated the wheel manufacturing industry for a long time. With its characteristics of safety, energy saving, beauty and comfort, it has gradually replaced steel wheels. In the early 20th century, Europe began to use sand molds to cast aluminum alloy car wheels, which were used in racing cars. In 1958, there were aluminum alloy wheels cast with integral metal molds, and they began to be used in ordinary passenger cars. In 1997, the proportion of steel wheels as standard configuration of majo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03B22F9/04
CPCC22C1/03C22C1/026B22F9/04
Inventor 高业龙张忠凯王春阳张春宇康昕伟
Owner 哈尔滨金铝科技有限公司
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