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Method of preparing large non crystal/fiber composite material and tis equipment

A technology of fiber composite materials and amorphous alloys, applied in the field of vacuum infiltration casting, can solve the problems of large size of fiber reinforced amorphous alloy composite materials, restricting the application range of materials engineering, etc., and achieve the effect of reducing manufacturing costs

Inactive Publication Date: 2003-09-17
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

The disadvantage of this method is that only the quartz crucible is evacuated and filled with argon and quenched with saturated brine, so that the size of the obtained fiber-reinforced amorphous alloy composite material cannot be very large, which seriously restricts the scope of engineering applications of the material

Method used

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  • Method of preparing large non crystal/fiber composite material and tis equipment
  • Method of preparing large non crystal/fiber composite material and tis equipment
  • Method of preparing large non crystal/fiber composite material and tis equipment

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Embodiment Construction

[0015] Five high-purity pure metals are selected, namely Zr (99.99wt%), Ni (99.95wt%), Cu (99.95wt%), Al (99.95wt%), Nb (99.99wt%). According to the atomic percentage: Zr is 57, Cu is 15.4, Ni is 12.6, Al is 10, and Nb is 5. Under the protection of high-purity argon with a purity of 99.8%, the purification technology of the liquid master alloy is applied, and the electric arc is used. The master alloy is obtained by melting. In order to ensure the homogeneity of each component in the master alloy, the master alloy was remelted three times. The surface of the master alloy ingot is mechanically ground and polished to remove surface oxide scale, then crushed into small pieces and the surface is cleaned with alcohol. Straighten the tungsten fiber with a diameter of 250μm and cut it into a length of 100mm. In order to ensure a good distribution of the tungsten fiber and avoid uneven density, the tungsten wire should be properly bent. First clean the oxide layer on the surface of ...

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Abstract

A process and equipment for preparing great non-crystal / fibre composition block is disclosed. Its equipment features that its heater is composed of a Mo layer and 6 reflecting layers, the mould made of quartz glass or graphite is arranged in said heater and is pneumatically drawn by a drawing mechanism under it, a cooling water tank is under the mould, and a dual-wall design is used for flowing cooling water between two walls and holding Ga-In or Ga-In-Sn alloy in the center. Its advantages are high control capability, less pollution to molten body and low cost.

Description

technical field [0001] The invention provides a vacuum infiltration casting method and corresponding equipment for preparing high-strength and high-toughness bulk amorphous / fiber composite materials. Background technique [0002] In the early 1990s, A.Inoue, T Zhang and T.Masumoto.Mater.Trans., JIM, 30(1989), 965 and A.Peker and W.L.Johnson, Appl.Phys.Lett., 63(1993 ), 2342 has broken through the limitation of high-speed cooling conditions through the design of alloy composition. Under the cooling speed conditions that can be achieved by conventional casting technology (~10 1 K / s) prepared bulk amorphous alloy materials, making the research and application of amorphous alloys enter a new era. At present, Zr-based, Pd-based, La-based, Fe-based, Mg-based and Ti-based blocks have been prepared by using technologies such as water-cooled copper mold casting method, deep supercooling method, spray casting-suction casting method and suspension injection method. Amorphous alloy ma...

Claims

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Application Information

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IPC IPC(8): C22C45/10C22C47/08C22C49/10
Inventor 惠希东寇宏超陈俊崔新发陈国良
Owner UNIV OF SCI & TECH BEIJING
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