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Reinforcing phase metallic gradient composite material manufacturing process and equipment thereof

A composite material and manufacturing process technology, applied in the field of reinforced phase metal gradient composite material manufacturing process and equipment, can solve the problems of inability to manufacture alloy layer composite products, slow cooling speed of matrix materials, coarse crystal structure, etc. Secondary heating process, avoid internal inclusions and pores, and improve the effect of casting infiltration capacity

Active Publication Date: 2010-06-30
丁家伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process has many advantages compared with the sand casting process, the lost foam casting method also has some disadvantages. Because the alloy paste block and the foam plastic model are put together during the molding, the reinforcement cannot be formed before pouring. Preheating makes it impossible to manufacture composite products with a thicker alloy layer, so that the parts that are severely worn by the overall impact and can only be scrapped when worn at a thickness of tens of mm or even hundreds of mm are limited due to the limitation of composite thickness. It is incompetent, which limits its application field; due to the slow cooling rate of the matrix material during lost foam casting, its crystal structure is coarse and the density of the material is poor.

Method used

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  • Reinforcing phase metallic gradient composite material manufacturing process and equipment thereof
  • Reinforcing phase metallic gradient composite material manufacturing process and equipment thereof
  • Reinforcing phase metallic gradient composite material manufacturing process and equipment thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: In Fig. 1, this equipment has a workbench 15, on the top of the workbench 15, a sand box 6 is installed, on the top of the sand box 6, a sand box cover 4 is installed, on any side of the sand box 6 There is a vacuum pipeline 10, the vacuum pipeline 10 is connected with the control valve 11 and the vacuum pump 12, an electromagnetic induction heater 16 is installed outside the model 5 in the sand box 6, and an electric vibrator 14 is installed on the workbench 15. 6 or the top or side of the sand mold 6 is equipped with pouring funnel 2, and pouring runner 3 is connected with pouring funnel 2 below.

[0019]At the beginning of the work, firstly, materials with special properties such as reinforced particles or reinforced short fibers or solid self-lubricating materials or boron-containing self-fluxing alloys are mixed with binders and solvents, or various strong carbides and nitrides are formed into elemental alloys Powder and carbon powder, nitrogen-contai...

Embodiment 2

[0020] Example 2: In figure 2 Among them, the difference with Fig. 1 is that the alloy paste block 9 is fixed in the middle part of the polystyrene foam plastic model 5, and repeating the composite process of Example 1 can be manufactured into a large thickness containing the alloy layer material in the middle part of the composite material The graded functional composite material 8 or casting product 8 of the alloy layer. Other processes and equipment are the same as in Embodiment 1, omitted.

Embodiment 3

[0021] Embodiment 3: in Fig. 3, the difference with Fig. 1 is that the alloy paste block 9 is fixed on the entire outer surface of the polystyrene foam model 5, and the compound process of repeating embodiment 1 can be manufactured in the composite material The functionally graded composite material 8 or cast product 8 of a large thickness alloy layer containing the alloy layer material on the entire outer surface. Other processes and equipment are the same as in Embodiment 1, omitted.

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Abstract

The present invention discloses process and apparatus for preparing composite material with gradient reinforcing phase. The composite material is prepared through fixing reinforcing alloy blocks in the required positions of the foamed plastic model, vacuum vibrating molding, heating the alloy blocks to 100-1200 deg.c with one outside electromagnetic induction heater, pouring base metal liquid, which infiltrates into the gaps of alloy powder to form great thickness gradient alloy layer with special function in the required positions of the base metal. The process has only once heating, no oxidation of the reinforcing alloy material, and raised flowability and permeability of the metal liquid, and is suitable for thick casting with two phases of different materials in high combination strength and high quality.

Description

technical field [0001] The present invention belongs to the technical field of surface gradient composite materials, and mainly relates to a manufacturing process and equipment of reinforced phase metal gradient composite materials. Background technique [0002] Gradient composite materials are based on the requirements of use, select two kinds of materials with different properties, and use various composite technologies to make the composition and structure of the middle part continuously change in gradients. A new type of composite material whose direction also changes in a gradient. Its remarkable feature is to overcome the performance mismatch problem of the combination of two materials, so that the two sides of the material have different functions. The material is now widely used in aviation industry, aerospace industry, nuclear energy technology, electronics, optics, chemistry, biomedicine and metallurgy, mining, electric power, petrochemical, cutting tool materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/14
Inventor 丁家伟丁刚
Owner 丁家伟
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