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sw-cnts and n-sicp reinforced magnesium alloy workpiece and method

A technology for strengthening magnesium alloys and magnesium alloys, which is applied in the field of preparation of the SW-CNTs and N-SiCp reinforced magnesium alloy workpieces, can solve the problems of restricting the performance of SW-CNTs short fibers and easy entanglement, and achieve weight reduction, The effect of expanding the application field

Active Publication Date: 2021-08-06
西咸新区镁高镁诺奖科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is a relatively strong van der Waals force between SW-CNTs, which makes it easy to entangle or agglomerate into bundles, which seriously restricts the performance of SW-CNTs short fibers.

Method used

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  • sw-cnts and n-sicp reinforced magnesium alloy workpiece and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Weigh the following raw materials according to weight percentage: SW-CNTs short fiber content is 0.5%, N-SiCp particle content is 1%, the rest is 650 mesh AZ91 powder, the sum of the weight percentages of the above components is 100%; choose 650 mesh AZ91 alloy powder is used as the matrix of the composite material, SW-CNTs are fibers with a length of 2 μm, and the particle size of N-SiCp particles is 50 nm; B of Φ8 mm is used 4 C Grinding Balls and Capsule Grinding Balls, B 4 C grinding balls and capsule grinding balls have the same number, B 4 The ratio of the total weight of C grinding balls and capsule grinding balls to the weight of the mixed powder is 1:1.

[0046] The above-mentioned mixed powder and balls were put into a ball mill tank together, and the mixed powder was ball-milled for 36 hours in a horizontal high-energy ball mill at 300 rpm under the protection of argon.

[0047] After ball milling, SW-CNTs short fibers, N-SiCp particles and magnesium alloy ...

Embodiment 2

[0050] Weigh the following raw materials according to weight percentage: SW-CNTs short fiber content is 1%, N-SiCp particle content is 3%, and the rest is 650 mesh AZ80 powder, the sum of the weight percentages of the above components is 100%; choose 650 mesh AZ80 alloy powder is used as the matrix of composite materials, SW-CNTs are fibers with a length of 3 μm, and the particle size of N-SiCp particles is 50 nm. 4 C Grinding Balls and Capsule Grinding Balls, B 4 C grinding balls and capsule grinding balls have the same number, B 4 The ratio of the total weight of C grinding balls and capsule grinding balls to the weight of the mixed powder is 1:1.

[0051] The above-mentioned mixed powder and balls were put into a ball mill tank together, and the mixed powder was ball-milled for 36 hours in a horizontal high-energy ball mill at 300 rpm under the protection of argon.

[0052] After ball milling, SW-CNTs short fibers, N-SiCp particles and magnesium alloy powder, which are co...

Embodiment 3

[0056] Weigh the following raw materials according to weight percentage: SW-CNTs short fiber content is 1.5%, N-SiCp particle content is 5%, and the rest is 650-mesh ZK60 powder. The sum of the weight percentages of the above components is 100%. 650-mesh ZK60 alloy powder is selected as the matrix of the composite material, SW-CNTs are fibers with a length of 5 μm, the particle size of N-SiCp particles is 100 nm, and B of Φ8 mm is used 4 C Grinding Balls and Capsule Grinding Balls, B 4 C grinding balls and capsule grinding balls have the same number, B 4 The ratio of the total weight of C grinding balls and capsule grinding balls to the weight of the mixed powder is 1:1.

[0057] The above-mentioned mixed powder and balls were put into a ball mill tank together, and the mixed powder was ball-milled for 36 hours in a horizontal high-energy ball mill at 300 rpm under the protection of argon.

[0058] After ball milling, SW-CNTs short fibers, N-SiCp particles and magnesium allo...

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Abstract

The invention discloses SW-CNTs and N-SiCp reinforced magnesium alloy workpiece, which is composed of the following raw material components by weight percentage: 0.5-1.5% of SW-CNTs short fibers, 1-15% of N-SiCp particles, and the balance is magnesium alloy Powder, the sum of the weight percentages of the above components is 100%. The workpiece gives full play to the role of SW-CNTs short fibers and N-SiCp particles in strengthening the magnesium alloy matrix, and improves the comprehensive mechanical properties and physical and chemical properties of the composite material. The preparation method of the workpiece with the above-mentioned material is as follows: step 1: take the raw materials according to the above-mentioned proportion; step 2: put the SW-CNTs short fibers, N-SiCp particles and magnesium alloy powder that are completely mixed uniformly after the ball milling in step 1 into the semi-solid injection molding device to directly form composite material blanks or workpieces.

Description

technical field [0001] The invention belongs to the field of metal matrix composite materials, in particular to SW-CNTs and N-SiCp reinforced magnesium alloy workpieces, and also relates to a preparation method of the SW-CNTs and N-SiCp reinforced magnesium alloy workpieces. Background technique [0002] With the expansion of the application fields of magnesium and magnesium alloys, magnesium-based composite materials are widely used in aviation for their excellent wear resistance, corrosion resistance, vibration damping performance, high temperature performance and good electromagnetic shielding, high electronegativity and thermal conductivity. Applications in aerospace, military product manufacturing, automotive lightweight, electronics and transportation industries are also becoming more and more extensive. American scholar Logsdon pointed out that the future development prospects of metal matrix composites mainly lie in non-long fiber reinforcement. Single-walled carbon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C49/04B22D17/00C22C47/12C22C101/10
CPCB22D17/007C22C47/12C22C49/04
Inventor 徐春杰李岩任国璐武向权郭灿张忠明曾凡宏D·谢赫特曼
Owner 西咸新区镁高镁诺奖科技有限公司
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