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Stable operation method for restraining deteriorated alusil alloy strontium from inhaling

A technology of aluminum-silicon alloy and operation method, which is applied in the field of stable operation, aluminum-silicon alloy strontium degeneration and inhibition of gas absorption, can solve the problems of inability to achieve long-term heat preservation pouring, inability to apply high-end aluminum castings, etc., to extend the effective time, gas The effect of content reduction and avoidance of aspiration

Inactive Publication Date: 2013-03-27
闫卫平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at present, strontium deterioration can only be used in general civilian fields, where it is used to produce low-demand products or to complete pouring in a short period of time; it cannot be applied to high-end aluminum castings, nor can it be used for long-term heat preservation pouring

Method used

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  • Stable operation method for restraining deteriorated alusil alloy strontium from inhaling
  • Stable operation method for restraining deteriorated alusil alloy strontium from inhaling
  • Stable operation method for restraining deteriorated alusil alloy strontium from inhaling

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Effect test

Embodiment 1

[0049] Embodiment 1 of the present invention provides a stabilizing operation method for deteriorating strontium of aluminum-silicon alloy and suppressing gettering, such as figure 1 shown, including the following steps:

[0050]101) Put the main components of the aluminum-silicon alloy into the crucible to melt it into a liquid alloy liquid, and keep the temperature of the alloy liquid within the range of 690-780°C;

[0051] 102) Put the secondary components of the aluminum-silicon alloy into the crucible one by one to melt and stir evenly, wherein the temperature of the alloy liquid is always kept within the range of 690-780°C;

[0052] 103) Put the modifier containing strontium element into the crucible, melt it and stir evenly, wherein, by weight, the strontium element accounts for 0.005%-0.03% of the aluminum-silicon alloy product, and the temperature of the liquid is always kept at In the range of 690~780℃;

[0053] 104) Keep the temperature of the alloy liquid in the ...

Embodiment 2

[0058] In order to further improve the effect, Embodiment 2 of the present invention improves the stabilizing operation method of Al-Si alloy strontium modification to suppress gettering on the basis of Embodiment 1, such as figure 2 shown, including the following steps:

[0059] 201) Cleaning and preheating the crucible;

[0060] 202) Preheating the substances to be added into the crucible at 100-350°C for 30-120 minutes;

[0061] 203) Put the main components of the aluminum-silicon alloy into the crucible to melt it into a liquid alloy liquid, and keep the temperature of the alloy liquid within the range of 690-780°C;

[0062] 204) Put the secondary components in the aluminum-silicon alloy into the crucible in turn, melt them and stir them evenly, and then remove the slag, wherein the temperature of the alloy liquid is always kept in the range of 690-780°C;

[0063] 205) Put the aluminum-strontium alloy into the crucible, melt it and stir it evenly, and then remove the sl...

Embodiment 3

[0082] Embodiment 3 of the present invention takes the smelting process of ZL114A or ZL101A alloy as an example to describe in detail. Such as image 3 shown, including the following steps:

[0083] 301) The crucible is cleaned and preheated; tools are cleaned, preheated, painted, and baked to remove moisture;

[0084] 302) Ingredients according to the ingredient list, including aluminum ingots, magnesium ingots, single crystal silicon, aluminum-titanium alloys, recycled materials, aluminum-strontium alloys, aluminum-titanium-boron refiners;

[0085] 303) Preheat the materials that need to be added to the crucible in the heating furnace at 100-350°C for 30-120 minutes, put the aluminum ingots and recycle materials into the furnace, and put the others on the edge of the furnace for preheating;

[0086] 304) Putting the returned material and aluminum ingot into the crucible to melt it into a liquid alloy liquid, and keeping the temperature of the alloy liquid within the range ...

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Abstract

The invention relates to the field of metal alloy refining, in particular to a stable operation method for restraining deteriorated alusil alloy strontium from inhaling, which comprises the following steps of inputting main components of alusil alloy into a crucible so as to be melted into alloy liquid, and keeping the temperature of the alloy liquid between 690 and 780 DEG C; sequentially inputting secondary components of the alusil alloy into the crucible so as to be melted and evenly mixed, inputting alterant with element of strontium into the crucible so as to be melted and evenly mixed, wherein according to weight, the element of strontium is 0.005%-0.03% of alusil alloy product, the temperature of the liquid is always kept between 690 and 780 DEG C; and keeping the temperature of the alloy liquid between 690 and 780 DEG C, and standing. According to the method, alloy liquid can be effectively prevented from inhaling, and the alloy liquid with the strontium deteriorated can be guaranteed to be valid for more than 7 hours.

Description

technical field [0001] The invention relates to the field of metal alloy refining, in particular to a stabilizing operation method for suppressing gas absorption by the modification of aluminum-silicon alloy strontium. Background technique [0002] At present, there are several methods of aluminum alloy modification: sodium salt modification, strontium modification, antimony modification, and tellurium modification. Among them, the first two methods are more commonly used, and the latter two methods are less used in China due to their high cost. [0003] The effect of sodium salt deterioration is good, but the effective time is very short. In production practice, the longest sustainable deterioration effect is about 2 hours. Strontium modification is a long-term modification agent. Foreign studies have compared the changes in strontium and sodium content over time, proving the long-term effect of strontium modification. [0004] However, after the strontium has deteriorated...

Claims

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Application Information

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IPC IPC(8): C22C21/04C22C1/02C22C1/03
Inventor 闫卫平
Owner 闫卫平
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