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Molds suitable for preparing bulk bulk amorphous alloys and their composite materials

A technology for amorphous alloys and composite materials, which is applied in the field of molds for preparing large-volume bulk amorphous alloys and their composite materials, can solve problems such as inconvenience in use and complicated processing technology, avoid repeated processing, and save mold materials and shapes. simple effect

Inactive Publication Date: 2016-04-20
XIAN TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the copper mold used above is in use, there are two outstanding problems: one is that the copper mold is an integral part with a fixed-sized inner cavity, which can only be used to prepare a fixed-shaped bulk amorphous
The water-cooled copper mold can provide stronger cooling capacity, but it makes the mold processing process more complicated. At the same time, it requires cooling water to be introduced into the vacuum chamber of the electric arc furnace or induction furnace, which is inconvenient to use
Moreover, the water-cooled copper mold still has the first problem mentioned above

Method used

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  • Molds suitable for preparing bulk bulk amorphous alloys and their composite materials
  • Molds suitable for preparing bulk bulk amorphous alloys and their composite materials
  • Molds suitable for preparing bulk bulk amorphous alloys and their composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Arc melting casting 10000mm 3 CuZrAlY amorphous plate

[0034] 1) Zr with a purity of 99.8%, Cu, Al, and Y with a purity of 99.99% according to Cu 45 Zr 45 Al 8 Y 2 100g of the nominal composition ingredients, placed in the electric arc furnace;

[0035] 2) Vacuum the electric arc furnace, and the vacuum degree reaches 5×10 -3 After the Pa is filled with argon to 0.8 atmospheric pressure, the molten Ti absorbs oxygen first, and then the prepared raw materials are smelted for 3 to 5 times to ensure that the composition is uniform, and a button-shaped master alloy ingot is obtained.

[0036] 3) see image 3 , Figure 4 , Figure 5 , select the cavity size as 50×50×4mm 3 The inner mold 3 of the inner mold 3 is used to prepare a rectangular sheet amorphous, and the sealing strip 4 is placed in the positioning slot 6 of the inner mold 3. After the two halves of the inner mold 3 are fastened with the fastening bolts 5, the copper inner mold 3 is inserted...

Embodiment 2

[0040] Example 2: Induction melting casting 7000mm 3 CuZrTi amorphous composite wafer

[0041] 1) Zr with a purity of 99.8%, Cu and Ti with a purity of 99.99% are compared with Cu 60 Zr 30 Ti 10 Put 50g of the nominal ingredients into a magnesia crucible with an inner diameter of 60mm and a depth of 80mm;

[0042] 2) see Image 6 , Figure 7 , Figure 8 , choose an inner mold with a cavity size of Φ60mm and a thickness of 2.5mm to prepare circular sheet amorphous, place the sealing strip 4 in the positioning slot 6 of the inner mold 3, and fasten the two halves of the inner mold 3 together with fastening bolts 5 After the mold is fastened, insert the copper inner mold 3 into the positioning slot 6 of the stainless steel outer mold 1 and fix it, and finally fill the outer mold 1 with 3.5 kg of gallium-indium alloy 2 . Put the assembled mold into the vacuum chamber and adjust the proper position to ensure that the alloy liquid can be poured into the mold smoothly.

[004...

Embodiment 3

[0047] Example 3 : Induction heating spray casting 4000mm 3 CuZrAlY amorphous rod

[0048] 1) Zr with a purity of 99.8%, Cu, Al, and Y with a purity of 99.99% according to Cu 41 Zr 49 Al 8 Y 2 The nominal composition of the batch is 30g; after 3~5 times of electric arc melting to ensure uniform composition, after mechanical crushing, it is loaded into a quartz tube with a nozzle at the bottom, and then the quartz tube is installed in a vacuum induction melting furnace.

[0049] 2) see Figure 9 , Figure 10 , Figure 11 , select the cavity size as Φ10 mm, length 60mm The inner mold 3 of the inner mold 3 is used to prepare cylindrical amorphous, and the sealing strip 4 is placed in the positioning slot 6 of the inner mold 3. After the two halves of the inner mold 3 are fastened with the fastening bolt 5, the copper inner mold 3 is inserted into the stainless steel 6 positioning slots of the outer mold 1 are fixed, and finally 2.5 kg of gallium-indium alloy 2 is fille...

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Abstract

The invention relates to a mold suitable for preparing bulk amorphous alloys and composite materials thereof, which includes a copper inner mold and a stainless steel outer mold with an upper opening, the inner mold is a split type, and the inner film is clamped on There is a distance between the bottom of the outer mold and the outer mold, and gallium indium alloy is filled in the cavity between the inner mold and the outer mold. The inner side of the outer mold is vertically provided with a positioning slot, and the convex strip on the inner mold is set in the positioning slot. The inner mold is divided into two symmetrical parts, the parting surface is processed with a sealing groove for placing the sealing strip, and the two symmetrical parts are connected by fastening bolts. The complete mold of the present invention is composed of cooling and forming parts, which avoids repeated processing of the cooling part and greatly saves mold materials. The mold structure is reasonable, simple, and easy to operate, and is especially suitable for processing large-volume bulk amorphous.

Description

technical field [0001] The invention belongs to the field of preparation of block amorphous alloy and composite material thereof. In particular, it is a mold suitable for preparing large-volume bulk amorphous alloys and their composite materials. Background technique [0002] Amorphous alloys have special properties due to their unique internal structure and have broad application prospects. In recent years, amorphous alloys have been a research hotspot in the fields of material science, condensed matter physics and mechanics. When amorphous alloys are formed, a high cooling rate is required to inhibit the nucleation and growth of crystals. Therefore, only small-sized amorphous samples can be obtained. This problem severely limits the wide application of amorphous alloys. The preparation of large-volume bulk amorphous alloys of different shapes and sizes is a key technology that scholars from all over the world have been working on. [0003] In recent years, the copper mol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D27/04
Inventor 李炳杨珂范新会王鑫陈建
Owner XIAN TECH UNIV
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