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Preparation method of germanium metal ball

A technology of metal balls and hemispheres, applied in the field of germanium metal, can solve problems such as extended production and processing cycles, increased demand for raw materials, and complicated production processes, and achieve the effect of simplifying the process

Active Publication Date: 2021-10-29
安徽光智科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the reduced germanium on the market is all large germanium ingots. For orders with less materials and large batches, large germanium ingots must be cut, resulting in prolonged production and processing cycles, complex production processes and increased demand for raw materials. and other phenomena
The current production process urgently needs to focus on the production and preparation process of germanium pellets with small particles

Method used

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  • Preparation method of germanium metal ball
  • Preparation method of germanium metal ball
  • Preparation method of germanium metal ball

Examples

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preparation example Construction

[0026] Firstly, the mold 100 for preparing germanium metal pellets of the present disclosure will be described.

[0027] refer to Figure 1 to Figure 4 , the mold 100 is a plate body, the plate body has an upper surface 1 and a lower surface 2 opposite in the thickness direction; the plate body is provided with a U-shaped hole 3; the U-shaped hole 3 has an opening 31 located on the upper surface 1 of the plate body, from the plate A cylinder 32 extending downwards from the upper surface 1 of the body and a hemisphere 33 extending downwards from the cylinder 32; The faces are completely coincident in the thickness direction of the plate body. During the preparation process, based on germanium oxide, germanium is obtained through reduction reaction, the volume occupied by germanium is reduced, and at the same time, the gaps between the germanium oxide particles of the raw material are also eliminated, and then using the hemisphere 33 combined with the cooling volume expansion o...

Embodiment 1

[0046] Step 1, prepare the mold 100, the mold 100 is a graphite plate, the plate body has an upper surface 1 and a lower surface 2 opposite in the thickness direction, the plate body is provided with a U-shaped hole 3, and the U-shaped hole 3 has an upper surface 1 located on the plate body The opening 31 of the plate body, the cylinder 32 extending downward from the upper surface 1 of the plate body, and the hemisphere 33 extending downward from the cylinder 32, the radius R of the cylinder 32 is the same as the radius R of the hemisphere 33, and the radius R of the cylinder 32 The bottom surface and the top surface of the hemisphere 33 completely overlap in the thickness direction of graphite, the height H of the cylinder 32 is 6mm, the radius R of the cylinder 32 is 4mm, the gray scale of the graphite plate is lower than 20ppm, and the thickness of the plate is 20mm;

[0047] Step 2, spread the germanium oxide on the mold 100 so that it fills the plurality of U-shaped holes ...

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Abstract

The invention provides a preparation method of a germanium metal ball. The method comprises the steps that a mold is prepared, the mold is a plate body, a U-shaped hole is formed in the plate body, and the U-shaped hole is provided with an opening located in the upper surface of the plate body, a cylinder and a hemisphere; the U-shaped hole is filled with germanium oxide; a graphite plate is put in a graphite boat; the graphite boat is put in a horizontal reduction furnace; nitrogen is introduced into the horizontal reduction furnace, and redundant air in the horizontal reduction furnace is removed; 6, hydrogen is introduced into the horizontal reduction furnace, the temperature is increased, heat preservation is conducted at the temperature of about 750-780 DEG C, germanium elementary substances are formed through a reduction reaction, and meanwhile, water formed in the reduction process overflows in a gaseous state; the introduction of hydrogen and the normal exhaust of a gas outlet of the horizontal reduction furnace are kept, after the reduction reaction is completed, the temperature is increased to 950-1050 DEG C, and heat preservation is conducted; and the introduction of hydrogen and the normal exhaust of the gas outlet of the horizontal reduction furnace are kept, and gradual cooling is conducted to reach room temperature, so that the germanium elementary substances in the U-shaped hole form a ball shape. Therefore, a germanium ingot in the background technology does not need to be formed, and the process is greatly simplified.

Description

technical field [0001] The present disclosure relates to the field of germanium metal, in particular to a preparation method of germanium metal pellets. Background technique [0002] With the increasing demand for infrared semiconductor laser materials in domestic and foreign markets, the demand for infrared semiconductor materials is also diversified. Infrared materials are used for coating and epitaxy to improve various properties of materials. At present, domestic pure germanium is obtained through high-temperature thermal reduction of germanium oxide, using hydrogen as a reducing agent, and high-purity germanium is obtained through high-temperature zone melting. At present, the reduced germanium on the market is all large germanium ingots. For orders with less materials and large batches, large germanium ingots must be cut, resulting in prolonged production and processing cycles, complex production processes and increased demand for raw materials. And so on. The curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/22B22D23/06
CPCB22F9/22B22D23/06Y02P10/20
Inventor 黄治成郭晨光熊聪尹士平马天亮龙瑞泽黄雪丽
Owner 安徽光智科技有限公司
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