Preparing method for particle reinforcement aluminum matrix composite large-size thick-wall pipe material

A technology of particle-reinforced aluminum and composite materials, which is applied in the field of manufacturing large-sized thick-walled pipes of particle-reinforced aluminum-based composite materials, can solve the problems of high cost, need, and long process route, and achieve good plasticity, cost reduction, and uniform shrinkage. Effect

Active Publication Date: 2017-05-31
有研金属复材技术有限公司
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  • Abstract
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Problems solved by technology

After searching the existing technical literature, it is found that the Chinese patent publications report that the manufacturing method of large-scale thin-walled pipes of particle-reinforced aluminum matrix composites is mainly spinning, and the manufacturing methods of large-scale thick-walled pipes for spinning are casting or powder. Metallurgical billet + reverse extrusion, this method has a long process route and high cost, and requires a large extrusion machine

Method used

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  • Preparing method for particle reinforcement aluminum matrix composite large-size thick-wall pipe material
  • Preparing method for particle reinforcement aluminum matrix composite large-size thick-wall pipe material
  • Preparing method for particle reinforcement aluminum matrix composite large-size thick-wall pipe material

Examples

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Embodiment 1

[0032] The composition of the composite pipe prepared in this example is 15vol.% SiCp / 2009Al, and the size of the pipe is 1000mm in outer diameter, 150mm in wall thickness, and 800mm in length.

[0033] according to figure 1 The preparation method shown: (1) uniformly mix silicon carbide powder and 2009Al alloy powder according to the volume ratio of 15:75, and the average particle size of silicon carbide powder is d 0.5 5.5μm, the average particle size of 2009Al powder d 0.5The mixing steel ball is made of bearing stainless steel, the specification is Φ20mm, the weight ratio of the ball to material is 5:1, the speed of the mixer is 30r / min, and the mixing time is 48 hours; (2) each cold isostatic pressing package assembly Sequential assembly, the material of the cold-pressed and shaped mandrel is stainless steel, with an outer diameter of 690mm, a wall thickness of 10mm, and a length of 820mm; the material of the cold-pressed sealed mandrel is made of No. 45 steel, with an o...

Embodiment 2

[0035] The composition of the composite pipe prepared in this example is 5vol.% Al 2 o 3 / 2024Al, the pipe size is 500mm in outer diameter, 80mm in wall thickness, and 500mm in length.

[0036] according to figure 1 The preparation method shown: (1) Al 2 o 3 Powder and 2024Al alloy powder are evenly mixed according to the volume ratio of 5:95, Al 2 o 3 Powder average particle size d 0.5 2μm, the average particle size of 2024Al powder d 0.5 5 μm; the material of the mixing steel ball is bearing stainless steel, the specification is Φ10mm, the weight ratio of the ball to material is 8:1, the speed of the mixer is 40r / min, and the mixing time is 48 hours; (2) each cold isostatic pressing package assembly Sequential assembly, the material of the cold-pressed and shaped mandrel is stainless steel, with an outer diameter of 330mm, a wall thickness of 6mm, and a length of 520mm; the material of the cold-pressed sealed mandrel is made of No. 45 steel, with an outer diameter of ...

Embodiment 3

[0038] The composition of the composite pipe prepared in this example is 10vol.% B 4 C / 6061Al, the pipe size is 200mm in outer diameter, 20mm in wall thickness, and 1500mm in length.

[0039] according to figure 1 The preparation method shown: (1) with B 4 C powder and 6061Al alloy powder are uniformly mixed according to the volume ratio of 10:90, B 4 C powder average particle size d 0.5 20μm, 6061Al powder average particle size d 0.5 The mixing steel ball is made of bearing stainless steel, the specification is Φ15mm, the weight ratio of the ball to material is 15:1, the speed of the mixer is 60r / min, and the mixing time is 24 hours; (2) each cold isostatic pressing package assembly Sequential assembly, the material of the cold-pressed and shaped mandrel is stainless steel, with an outer diameter of 156mm, a wall thickness of 4mm, and a length of 1520mm; the material of the cold-pressed sealed mandrel is made of No. 45 steel, with an outer diameter of 147mm and a wall thi...

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Abstract

The invention discloses a preparing method for a particle reinforcement aluminum matrix composite large-size thick-wall pipe material and belongs to the technical field of preparing of metal matrix composite pipe materials. According to the preparing method, reinforcement particles and aluminum alloy powder are evenly mixed according to a certain proportion; obtained mixed powder is packaged in a cold isostatic pressing sheathing assembly to be subjected to cold isostatic pressing forming, and a pipe blank is formed; the cold pressing pipe blank is subjected to vacuum gas removing, then hot isostatic pressing densifying is conducted, and a completely-dense pipe material is prepared; and finally the composite pipe material is obtained through machining. The prepared large-size thick-wall pipe material has the beneficial effects of being light, high in strength, high in modulus and the like, in addition, the quality is stable, the cost is low, and the large-size thick-wall pipe material can be widely applied to high-strength and light large-size pipes in the fields of aerospace, automobiles, advanced weapons and the like.

Description

technical field [0001] The invention belongs to the technical field of metal-matrix composite material pipe preparation, and in particular relates to a method for manufacturing a large-size thick-walled pipe material of particle-reinforced aluminum-matrix composite material. Background technique [0002] Particle-reinforced aluminum matrix composites are an advanced structural material developed in recent years. This material has excellent properties such as high specific strength and specific stiffness, wear resistance, fatigue resistance and low density. Since the early 1980s, countries around the world have conducted many basic researches on this kind of materials, and achieved remarkable results. At present, in developed countries such as the United States and Europe, particle-reinforced aluminum matrix composites have been applied in a series of important occasions. For example, DWA Company replaced the original 2214 aluminum alloy skin with 6092 / SiC / 17.5p For the vent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/04B22F3/15B22F3/03B22F5/12C22C32/00C22C1/05C22C1/10
CPCB22F3/03B22F3/04B22F3/1208B22F3/15B22F5/106C22C1/05C22C32/0036C22C32/0052C22C32/0057C22C32/0063C22C32/0068
Inventor 魏少华左涛刘彦强聂俊辉马自力樊建中郝心想
Owner 有研金属复材技术有限公司
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