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 comp

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

Examples

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Example Embodiment

[0048] Example one

[0049] The first embodiment of the present invention provides a stabilizing operation method for suppressing gettering due to deterioration of strontium aluminum-silicon alloy, such as figure 1 As 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 in the range of 690 to 780°C;

[0051] 102) Put the minor components in the aluminum-silicon alloy into the crucible in turn to melt and stir evenly, in which the temperature of the alloy liquid is always kept in the range of 690-780℃;

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

[0053] 104) Keep the temperature of the...

Example Embodiment

[0057] Example two

[0058] In order to further improve the effect, the second embodiment of the present invention improves the stabilization operation method for suppressing gettering due to the deterioration of the aluminum-silicon alloy strontium on the basis of the first embodiment, such as figure 2 As shown, including the following steps:

[0059] 201) Clean and preheat the crucible;

[0060] 202) Preheat the material to be added to 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 in the range of 690 to 780°C;

[0062] 204) Put the minor components in the aluminum-silicon alloy into the crucible in turn, melt them and stir them evenly, and then carry out slagging, wherein the temperature of the alloy liquid is always kept in the range of 690-780℃;

[0063] 205) Put the aluminum-strontium alloy into a crucible, melt it...

Example Embodiment

[0081] Example three

[0082] In the third embodiment of the present invention, the smelting process of ZL114A or ZL101A alloy is taken as an example for detailed description. Such as image 3 As shown, including the following steps:

[0083] 301) The crucible is cleaned and preheated; the tools are cleaned, preheated, painted, baked, and water removed;

[0084] 302) According to the list of ingredients, including aluminum ingots, magnesium ingots, single crystal silicon, aluminum-titanium alloy, reheating material, aluminum-strontium alloy, aluminum-titanium-boron refiner;

[0085] 303) Preheat the material that needs to be added into the crucible in the heating furnace at 100-350°C for 30-120 minutes. The aluminum ingots and reheating materials are placed in the furnace, and the rest are placed on the furnace side for preheating;

[0086] 304) Put the reheating material and aluminum ingot into the crucible to melt it into a liquid alloy liquid, and keep the temperature of the alloy l...

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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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