Alloy ingot containing magnesium cerium and preparation method

An alloy ingot and alloying technology, applied in the field of metal alloys, can solve the problems of low mold forming efficiency, poor quality, corrosion resistance, wear resistance, defective machining, etc., to achieve superior mechanical properties, good forming effect, Use a wide range of effects

Inactive Publication Date: 2017-12-22
JINGJIANG XINZHOU ALLOY MATERIALS
3 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0002] Hot-dip galvanizing is a steel surface treatment method that requires high requirements in terms of economy and practicability. It is widely used because of its simple and easy implementation in technology, and its excellent anti-corrosion performance. With the continuous development of soc...
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Method used

Adopt mobile movable zinc chute pouring; Described movable zinc chute comprises tank shell 101; Described tank shell 101 upper end surface is provided with shoulder groove 102, and bottom inner wall is provided with several and through hole 2 Matching detachable column 103; a circular arc transition section 104 is provided between the shoulder groove 102 and the tank shell 101; a pouring space for an alloy ingot containing magnesium and cerium is formed between the tank shell 101 and the column 103 The side wall of the tank shell 101 is opposite to the draft angle direction of the side wall of the column 103; the upper surface of the column 103 is flush with the upper surface of the tank shell 101, which is convenient for forming the alloy ingot containing magnesium and cerium; In actual use, the shoulder groove 102 has a similar function to the riser during casting, which not only facilitates the forming of alloy ingots containing magnesium and cerium and reduces defects, but also cooperates...
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Abstract

An alloy ingot containing magnesium and cerium and a preparation method thereof, the alloy ingot containing magnesium and cerium includes an inverted trapezoidal body, the inverted trapezoidal body is provided with through holes, and two inverted trapezoidal bosses are symmetrically arranged at the bottom; The preparation method described mainly includes the following steps: step ①, ingredients: proportioning alloying elements by weight percentage: 20% to 25% of aluminum, 0.2% to 0.3% of silicon, 1.1% to 1.9% of magnesium, rare earth cerium 0.5% to 0.6%, the balance is zinc; step ②, smelting: step ③, pouring: using a movable zinc chute for pouring; the movable zinc chute includes the tank shell; There are a number of detachable columns that match the through holes; there is a circular arc transition section between the shoulder groove and the tank shell; the pouring space for the alloy ingot containing magnesium and cerium is formed between the tank shell and the column; the groove shell The direction of the draft angle of the side wall and the side wall of the column is opposite; the upper surface of the column is flush with the upper surface of the tank shell; step ④, post-molding treatment.

Technology Topic

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  • Alloy ingot containing magnesium cerium and preparation method
  • Alloy ingot containing magnesium cerium and preparation method
  • Alloy ingot containing magnesium cerium and preparation method

Examples

  • Experimental program(6)

Example Embodiment

[0023] in figure 2 , image 3 Medium: A method for preparing an alloy ingot containing magnesium and cerium, which mainly includes the following steps:
[0024] Step ①, ingredients:
[0025] A magnesium-cerium-containing alloy ingot. The alloying elements are proportioned according to weight percentages: aluminum 20% to 25%, silicon 0.2% to 0.3%, magnesium 1.1% to 1.9%, rare earth cerium 0.5% to 0.6%, The balance is zinc;
[0026] Step ②, smelting:
[0027] Put the proportioned metal into the smelting furnace, heat it up to 650 degrees, combine magnetic stirring and manual stirring to make the components uniformly alloyed to avoid aluminum segregation, remove the scum from the inner surface of the furnace, and then sample at the furnace mouth , Laboratory tests whether the ingredients are uniform;
[0028] Step ③, pouring: the pouring time should not be too fast, otherwise it is easy to produce bubbles, slag inclusions, and cracks. The pouring is 3 minutes. After pouring, the surface slag is removed again for 1-2 minutes and the skin is quickly rubbed;
[0029] The movable zinc chute is used for pouring; the movable zinc chute includes a tank shell 101; the upper end of the tank shell 101 is provided with a shoulder groove 102, and the inner wall of the bottom is provided with a number of movable zinc chutes that cooperate with the through holes 2 The disassembled column 103; the arc transition section 104 is provided between the shoulder groove 102 and the groove shell 101; the pouring space of the magnesium-cerium alloy ingot is formed between the groove shell 101 and the column 103; The draft angle of the side wall of the trough shell 101 is opposite to that of the side wall of the column 103; the upper surface of the column 103 is flush with the upper surface of the trough shell 101, which is convenient for forming the magnesium-cerium alloy ingot; , The said shoulder groove 102, in the pouring, is similar to the role of the pouring riser, not only is conducive to the formation of magnesium-cerium-containing alloy ingots, reducing defects, but also cooperates with the arc transition section 104 to facilitate demolding; After the said column 103 is formed with the magnesium-cerium-containing alloy ingot, it is demolded together with the magnesium-cerium-containing alloy ingot, and then separated from the magnesium-cerium-containing alloy ingot. The column 103 can not only be reused, but also is beneficial to the magnesium-cerium-containing alloy ingot. Forming and demoulding of alloy ingots.
[0030] Step ④, post-molding treatment; when the alloy liquid is poured into the movable zinc chute for 25-30 minutes, observe that the upper surface has been completely solidified and formed, then demold, and check whether the magnesium-cerium alloy ingot has burrs during the mold ejection process , Flash, shrinkage, crack, shrinkage, scum.
[0031] The addition of rare earth cerium element further improves the surface hardness and conductivity of the product without affecting the corrosiveness of the coating, so that it has better scratch resistance, and the scope of use extends to the field of home appliances.

Example

[0032] The first embodiment:
[0033] A preparation method of magnesium-cerium-containing alloy ingots mainly includes the following steps:
[0034] Step ①, ingredients:
[0035] An alloy ingot containing magnesium and cerium. The alloying elements are proportioned according to weight percentages: aluminum 20%, silicon 0.2%, magnesium 1.1%, rare earth cerium 0.5%, and the balance is zinc;
[0036] Step ②, smelting:
[0037] Put the proportioned metal into the smelting furnace, heat it up to 650 degrees, combine magnetic stirring and manual stirring to make the components uniformly alloyed to avoid aluminum segregation, remove the scum from the inner surface of the furnace, and then sample at the furnace mouth , Laboratory tests whether the ingredients are uniform;
[0038] Step ③, pouring: use a movable zinc chute for pouring; the pouring time should not be too fast, otherwise it is easy to produce bubbles, slag inclusions, and cracks. The pouring takes 3 minutes. After pouring, the surface slag is removed and the skin is quickly rubbed after 1 minute;
[0039] Step ④, post-molding treatment; when the alloy liquid is poured into the movable zinc chute for 25 minutes, observe that the upper surface has been completely solidified and formed, and then demold, and check whether the magnesium-cerium-containing alloy ingot has burrs or fly Edges, shrinkage holes, cracks, shrinkage porosity, scum.
[0040] Scratch load test is adopted. The sapphire test needle with a tip radius of 0.05mm is perpendicular to the test part, adjusted to a load of 0.0196N-0.196N, and the test part is moved 20mm. Afterwards, visually observe whether the test part is scratched, and scratches will occur. The smallest scratch load in the test is the actual scratch load of the test. After testing, the hardness of the magnesium-cerium-containing alloy ingot is between 135HV-155HV.

Example

[0041] The second embodiment:
[0042] A preparation method of magnesium-cerium-containing alloy ingots mainly includes the following steps:
[0043] Step ①, ingredients:
[0044] A magnesium-cerium-containing alloy ingot. The alloying elements are proportioned according to weight percentages: 22% aluminum, 0.22% silicon, 1.3% magnesium, 0.52% rare earth cerium, and the balance is zinc;
[0045] Step ②, smelting:
[0046] Put the proportioned metal into the smelting furnace, heat it up to 650 degrees, combine magnetic stirring and manual stirring to make the components uniformly alloyed to avoid aluminum segregation, remove the scum from the inner surface of the furnace, and then sample at the furnace mouth , Laboratory tests whether the ingredients are uniform;
[0047] Step ③, pouring: use a movable zinc chute for pouring; the pouring time should not be too fast, otherwise it is easy to produce bubbles, slag inclusions, and cracks. The pouring takes 3 minutes. After pouring, the surface slag is removed and the skin is quickly rubbed after 1 minute;
[0048] Step ④, post-molding treatment; when the alloy liquid is poured into the movable zinc chute for 25 minutes, observe that the upper surface has been completely solidified and formed, and then demold, and check whether the magnesium-cerium-containing alloy ingot has burrs or fly Edges, shrinkage holes, cracks, shrinkage porosity, scum.
[0049] Scratch load test is adopted. The sapphire test needle with a tip radius of 0.05mm is perpendicular to the test part, adjusted to a load of 0.0196N-0.196N, and the test part is moved 20mm. Afterwards, visually observe whether the test part is scratched, and scratches will occur. The smallest scratch load in the test is the actual scratch load of the test. After testing, the hardness of the magnesium-cerium-containing alloy ingot is between 135HV-155HV.
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PUM

PropertyMeasurementUnit
Hardness135.0 ~ 155.0
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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