Cs2HPO4 aerosol for semi-solid pulping of aluminum-silicon alloy and using method of Cs2HPO4 aerosol

An aluminum-silicon alloy, aerosol technology, applied in chemical instruments and methods, phosphorus compounds, non-metallic elements, etc., can solve the problems of long production cycle, low nucleation rate, unsuitable promotion, etc., to solve the problem of poor uniformity and improve The effect of melt quality, high production practical value

Active Publication Date: 2020-07-03
辽宁瑞鸥新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above method has achieved good application results in research and actual production, there is a blind spot in the stirring pulping method, which leads to insufficient stirring, uneven distribution of the melt flow field during the stirring process, and a low nucleation rate. The uniformity of the primary phase of the slurry is poor; the process of continuous rheological conversion method is complicated, the pipeline is easy to block and difficult to clean, and the temperature control of the inclined plate method with low superheat is difficult, and the influence of factors such as the inclination angle of the inclined plate and the length of the plate need to be considered , the contact area between the melt and the air is large, the oxidation inclusions are serious, and it is difficult to ensure the quality of the slurry; the rotary enthalpy balance method requires better heat transfer control, complex process, and long production cycle, so it is not suitable for promotion
The production process of most semi-solid slurries has poor stability and is greatly affected by external disturbance factors. It is difficult to guarantee the quality in large-scale production. Obtaining a good semi-solid slurries is the basis and key of metal semi-solid forming. To develop new alloy semi-solid slurries technology is particularly urgent

Method used

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  • Cs2HPO4 aerosol for semi-solid pulping of aluminum-silicon alloy and using method of Cs2HPO4 aerosol
  • Cs2HPO4 aerosol for semi-solid pulping of aluminum-silicon alloy and using method of Cs2HPO4 aerosol
  • Cs2HPO4 aerosol for semi-solid pulping of aluminum-silicon alloy and using method of Cs2HPO4 aerosol

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Adopt the present invention to prepare 2Kg-brand 6A02 aluminum-silicon alloy semi-solid slurry

[0034] The aerosol solvent raw material gas adopts CO with a purity of 5N 2 , Ar, Kr; the aerosol solute is analytically pure Cs 2 HPO 4 Powder, analytically pure Cs 2 HPO 4 The powder diameter is 200nm.

[0035] Cs prepared by volumetric method 2 HPO 4 Aerosol, will contain a certain amount of analytically pure Cs 2 HPO 4 Powder and a 100L airtight container with a relative pressure of -65KPa is filled with CO with a volume ratio of 31:49:20 under the same temperature and pressure conditions. 2 , Ar, Kr, Cs 2 HPO 4 The mass fraction of the powder added in the aerosol accounted for 94%, and the Cs for semi-solid slurrying of aluminum-silicon alloys was prepared. 2 HPO 4 aerosol.

[0036] Weigh 2Kg of the 6A02 alloy that has been polished to remove the oxide layer, and the prepared Cs for semi-solid slurrying of aluminum-silicon alloys 2 HPO 4 The aerosol is he...

Embodiment 2

[0038] Adopt the present invention to prepare 2Kg-grade 6A51 aluminum alloy semi-solid slurry

[0039] The aerosol solvent raw material gas adopts CO with a purity of 5.8N 2 , Ar, Kr; the aerosol solute is analytically pure Cs 2 HPO 4 Powder, analytically pure Cs 2 HPO 4 The powder diameter is 210nm.

[0040] Cs prepared by volumetric method 2 HPO 4 Aerosol, will contain a certain amount of analytically pure Cs 2 HPO 4 Powder and a 100L airtight container with a relative pressure of -75KPa is filled with CO with a volume ratio of 32:46:22 under the same temperature and pressure conditions. 2 , Ar, Kr, Cs 2 HPO 4 The mass fraction of the powder added in the aerosol accounted for 95%, and the Cs for semi-solid slurrying of aluminum-silicon alloys was prepared. 2 HPO 4 aerosol.

[0041] Weigh 2Kg of the 6A51 alloy that has been polished to remove the oxide layer, and prepare the prepared Cs for semi-solid slurrying of aluminum-silicon alloys. 2 HPO 4 The aerosol is...

Embodiment 3

[0043] Adopt the present invention to prepare 2Kg-brand A356 aluminum alloy semi-solid slurry

[0044] The aerosol solvent uses CO with a purity of 6N 2 , Ar, Kr; the aerosol solute is analytically pure Cs 2 HPO 4 Powder, analytically pure Cs 2 HPO 4 The powder diameter is 220nm.

[0045] Cs prepared by volumetric method 2 HPO 4 Aerosol, will contain a certain amount of analytically pure Cs 2 HPO 4 Powder and a 100L airtight container with a relative pressure of -60KPa is filled with CO with a ratio of 33:45:22 under the same temperature and pressure conditions. 2 , Ar, Kr, Cs 2 HPO 4 The mass fraction of the powder added in the aerosol accounted for 95%, and the Cs for semi-solid slurrying of aluminum-silicon alloys was prepared. 2 HPO 4 aerosol.

[0046] Weigh 2Kg of the A356 alloy that has been polished to remove the oxide layer, and prepare the Cs for semi-solid slurrying of aluminum-silicon alloys 2 HPO 4 The aerosol is heated to 530°C. Melt the A356 alloy...

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Abstract

The invention discloses Cs2HPO4 aerosol for semi-solid pulping of an aluminum-silicon alloy and a using method of the Cs2HPO4 aerosol, and belongs to the field of metal material preparation. The Cs2HPO4 aerosol for semi-solid pulping of the aluminum-silicon alloy comprises a Cs2HPO4 powder aerosol solute and an aerosol solvent, and the aerosol solute accounts for 94%-96% of the Cs2HPO4 aerosol forsemi-solid pulping of the aluminum-silicon alloy in percentage by mass, wherein the aerosol solvent is mixed gas of Ar, CO2 and Kr. The Cs2HPO4 aerosol is prepared by adopting a volumetric method andis filled into aluminum-silicon alloy melt in a semi-solid temperature interval, and a slurrying process is completed under the action of an active component Cs2HPO4 to obtain the aluminum-silicon series alloy semi-solid slurry. The method is suitable for preparing the aluminum-silicon alloy semi-solid slurry, and can effectively solve the problems of poor uniformity, complex process, high energyconsumption and the like in the traditional preparation process of the aluminum alloy semi-solid slurry.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a Cs used for semi-solid pulping of aluminum-silicon alloys 2 HPO 4 Aerosols and methods of use. Background technique [0002] Metal semi-solid processing technology is the frontier metal processing technology in the 21st century. Metal semi-solid processing is that during the solidification process of the metal, the dendrites generated by strong stirring or by controlling the solidification conditions to inhibit the growth or breakage of the dendrites form an equiaxed, uniform, and fine primary phase, which is evenly distributed in the liquid phase. suspended semi-solid slurry. When the solid phase ratio reaches 60%, the semi-solid slurry still has good fluidity, can process complex structures, and has mechanical properties close to forging products, which has good development and development prospects. Semi-solid slurry is the core of semi-solid process technology....

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C01B25/30B22D1/00
CPCB22D1/002C01B25/30C01P2004/62C01P2006/80
Inventor铁镝颜路飞付莹孙栋刘海峰陈民芳管仁国张德良
Owner辽宁瑞鸥新材料科技有限公司