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Preparation method of aluminum alloy material for polished aluminum and aluminum alloy material thereof

An aluminum alloy material and alloy technology, applied in the field of aluminum alloy materials, can solve the problems of reduced material ductility, product surface damage, increased fracture incidence, etc., to reduce fracture incidence, excellent acid and alkali corrosion resistance, and excellent high temperature resistance. The effect of oxidation

Pending Publication Date: 2022-07-15
珠海市富智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

However, there will be free silicon in the aluminum alloy prepared by the traditional aluminum alloy production process, and the free silicon will be precipitated during the polishing process of the aluminum alloy material, causing damage to the product surface, and the free silicon will also reduce the ductility of the material. Increased incidence of fracture

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  • Preparation method of aluminum alloy material for polished aluminum and aluminum alloy material thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An aluminum alloy material for polishing aluminum is prepared by the following preparation method, comprising the following steps:

[0037] Step 1: Pretreatment: Mix Mg powder and Si powder into a high-energy ball mill for ball milling. The ball milling rate is 300 r / min. The ball milling medium is quenched steel balls. The ratio of ball to material is 18:1. 6.5mm, after ball milling for 1 hour under the protection of high-purity argon, adding reinforcing powder, and continuing ball milling for 1 hour to obtain Mg-Si composite powder; the reinforcing powder is composed of Fe powder, Cu powder, Mn powder, Cr powder, Ti powder, Zn powder With a mass ratio of 5:1:1:1:2:1, the content of reinforcing powder accounts for 0.1% of the total weight of the Mg-Si composite powder;

[0038]Step 2: Preparation of liquid alloy: Put the Mg-Si composite powder into the melting furnace to melt, smelt at 800°C, add Al powder after complete melting to obtain an alloy system, and keep the ...

Embodiment 2

[0048] An aluminum alloy material used for polishing aluminum is prepared by the following preparation method, comprising the following steps:

[0049] Step 1: Pretreatment: Mix Mg powder and Si powder into a high-energy ball mill for ball milling. The ball milling rate is 320 r / min. The ball milling medium is quenched steel balls. The ratio of ball to material is 16:1. The diameter of the quenched steel ball is 6.5mm, after ball-milling for 1h under the protection of high-purity argon gas, adding reinforcing powder and continuing ball-milling for 1h to obtain Mg-Si composite powder; the reinforcing powder is composed of Fe powder, Cu powder, Mn powder, Cr powder, Ti powder, Zn powder With a mass ratio of 3:1:1:1:1:1, the content of reinforcing powder accounts for 0.2% of the total weight of the Mg-Si composite powder;

[0050] Step 2: Preparation of liquid alloy: put the Mg-Si composite powder into the melting furnace to melt, smelt at 800°C, add Al powder after complete melt...

Embodiment 3

[0060] An aluminum alloy material used for polishing aluminum is prepared by the following preparation method, comprising the following steps:

[0061] Step 1: Pretreatment: Mix Mg powder and Si powder into a high-energy ball mill for ball milling. The ball milling rate is 350 r / min. The ball milling medium is quenched steel balls. The ratio of ball to material is 15:1. The diameter of the quenched steel ball is 6.5mm, after ball-milling for 1h under the protection of high-purity argon gas, adding reinforcing powder and continuing ball-milling for 1h to obtain Mg-Si composite powder; the reinforcing powder is composed of Fe powder, Cu powder, Mn powder, Cr powder, Ti powder, Zn powder With a mass ratio of 10:1:1:1:2:1, the content of reinforcing powder accounts for 0.08% of the total weight of the Mg-Si composite powder;

[0062] Step 2: Preparation of liquid alloy: put the Mg-Si composite powder into the melting furnace to melt, smelt at 800°C, add Al powder after complete me...

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Abstract

The invention discloses a preparation method of an aluminum alloy material for polishing aluminum, which comprises the following steps: mixing Mg powder and Si powder, carrying out ball milling for 1-2 hours, adding reinforcing powder, and continuously carrying out ball milling to obtain Mg-Si composite powder and reduce the existence of free silicon; the Mg-Si composite powder after ball milling is smelted at the temperature of 800 DEG C, the primary phase content in the formed Mg-Si alloy is small, then Al powder is added to obtain an alloy system, the aluminum alloy material is prepared through the steps of adding an oxidation compensation agent, refining, slagging-off, degassing, standing, casting, homogenizing and the like, the element content of Mg and Si in the prepared aluminum alloy material is low, and the prepared aluminum alloy material is high in mechanical strength and good in mechanical property. The forming rate of intermediate alloy Mg2Si is reduced, the content of excessive Si can be greatly reduced, the ductility of the material is improved, the aluminum alloy material can be bent, extruded, stamped and other machining is facilitated, free silicon cannot be excessively separated out in the polishing process, the surface of the product is not damaged, the yield of the aluminum alloy polished product can be better improved, and the quality of the finished product is greatly improved.

Description

technical field [0001] The invention belongs to the preparation technology of an aluminum alloy material used for polishing aluminum, and particularly relates to a preparation method of an aluminum alloy material used for polishing aluminum and an aluminum alloy material thereof. Background technique [0002] Aluminum alloys are widely used, ranging from aluminum materials for military industry and aerospace; to aluminum alloy products for building doors and windows, agricultural tools, furniture products, industrial electronic products, sports equipment, and transportation ships. With the development of society, the market competition has become increasingly fierce, and the end consumer market has higher and higher requirements for the performance and appearance of aluminum alloy processing. At present, the aluminum alloys on the market are used in industrial electronics and furniture products. Aluminum alloys are easy to oxidize and color, easy to spray, polish, wire drawi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/08C22C49/06C22C49/14C22F1/047B22D11/06C21D8/06B22F9/04C22C111/00
CPCC22C47/08C22C49/06C22C49/14C22F1/002C22F1/047B22D11/003B22D11/0622C21D8/06B22F9/04B22F2009/043
Inventor 李象明欧珍晖
Owner 珠海市富智新材料科技有限公司
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