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Method and equipment of preparing massive great-specific weight Zr-W-base amorphous alloy

An amorphous alloy, high specific gravity technology, applied in the field of vacuum suction casting preparation, can solve the problems of complex copper mold manufacturing, and achieve the effects of improving the filling speed, reducing manufacturing costs and facilitating mold replacement.

Inactive Publication Date: 2002-05-08
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

After the master alloy is melted, the baffle between the upper and lower copper molds is opened, and the liquid alloy is sucked into the water-cooled copper mold below under the action of vacuum suction, and the bulk amorphous is prepared by the strong cooling effect of the water-cooled copper mold. The disadvantage of this equipment is Copper mold manufacturing is complex, considering not only the shape of the sample, but also the vacuum sealing of the copper mold

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  • Method and equipment of preparing massive great-specific weight Zr-W-base amorphous alloy
  • Method and equipment of preparing massive great-specific weight Zr-W-base amorphous alloy
  • Method and equipment of preparing massive great-specific weight Zr-W-base amorphous alloy

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Embodiment Construction

[0021] Select high-purity 6 pure metals, namely Zr (99.9999wt%), Ni (99.999wt%), Cu (99.99wt%), Al (99.999wt%), W (99.99wt%), B (99.9999wt%) ). The atomic percentage is: Zr is 55.2, Cu is 14.8, Ni is 8.5, Al is 6.4, W is 10, and B is 5. Under the protection of high-purity argon, the purification technology of liquid master alloy is applied, and the electric arc is used to 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. These master alloy nuggets are put into the quartz tube, utilize the device as shown in accompanying drawing 1, according to the working principle as mentioned above, prepare Zr as shown in accompanying drawing 2 55.2 Cu 14.8 Ni 8.5 Al 6.4 W 10 B 5 Rod, the specific gravit...

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Abstract

The massive amorphous alloy has the components (in atomicity percentage): Zr 40-60, Cu 5-25, Ni 5-20, Al 2-10, W 5-15 and B2-10. The suspension smelting and double chamber casting equipment for producing the alloy consists of mechanical pump, diffusion pump, air valve, vacuum chamber, elevator, water cooled copper mold, upper and lower connection and sealing structure, suspension coil, quartz glass crucible, thermocouple, power supply and other parts. The amorphous alloy of the present invention has specific weight of 7.5-8.0 g / cu cm, 15-20 % greater than that of traditional Zr-base massive amorphous alloy. The suspension smelting can purify and homogenize melt and the double chamber casting can raise melt filling speed, simplify mold design and manufacture and lower manufacture cost.

Description

Technical field: [0001] The invention provides a vacuum suction casting preparation method and corresponding equipment of a tungsten-containing high specific gravity Zr-W-Cu-Ni-Al-B bulk amorphous alloy. Background technique: [0002] Since Duwez first prepared Au-Si amorphous alloy by melt quenching technology in 1960, the amorphous alloy has strongly attracted scientists with its unique structure and excellent performance, and was first used in transformer core materials , Catalyst materials and other aspects have obtained industrial applications. However, due to the necessary rapid cooling conditions (>10 6 K / s), amorphous alloys can only exist in low-dimensional forms such as powder, wire, and thin strips for a long period of time in the future, which greatly weakens the full potential of amorphous alloy performance and also limits The widespread use of amorphous alloys. Until the nineties, A. Inoue, T Zhang and T. Masumoto. Mater. Trans., JIM, 30(1989), 965 and A....

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Application Information

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IPC IPC(8): C22C45/10
Inventor 惠希东王艳丽宋西平林均品林志陈国良
Owner UNIV OF SCI & TECH BEIJING
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