Tungsten alloy shield plate and preparation method thereof

A technology of shielding plate and tungsten alloy, which is applied in the field of tungsten alloy shielding plate and its preparation, can solve the problems of difficult to meet the demand and poor shielding performance of tungsten alloy, and achieve good neutron absorption performance, good conductivity and good conductivity Effect

Active Publication Date: 2016-08-31
GUANGDONG HUASITE ALLOY PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current tungsten alloy has poor shielding performance and is difficult to meet the needs of the market

Method used

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  • Tungsten alloy shield plate and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0037] A tungsten alloy shielding plate, comprising raw materials in the following proportions by weight: 140 parts of tungsten powder, 10 parts of nickel powder, 50 parts of copper powder, 20 parts of samarium powder, 2 parts of neodymium powder, 10 parts of silver powder, and 2 parts of yttrium oxide , 10 parts of molybdenum wire, 10 parts of rhenium wire and 3 parts of tin oxide.

[0038] A kind of preparation method of tungsten alloy shielding plate comprises the following steps:

[0039] 1) Pour 140 parts of tungsten powder, 10 parts of nickel powder, 50 parts of copper powder, 20 parts of samarium powder, 2 parts of neodymium powder, 10 parts of silver powder, 2 parts of yttrium oxide and 3 parts of tin oxide into the container, and then place Carry out drying treatment in a vacuum heating furnace at a drying temperature of 70°C, a vacuum degree of 5 Pa, and a drying time of 9 minutes to obtain dry powder for later use;

[0040] 2) Pour the dry powder prepared in step 1...

Embodiment 2

[0048]A tungsten alloy shielding plate, comprising raw materials in the following proportions by weight: 200 parts of tungsten powder, 70 parts of nickel powder, 120 parts of copper powder, 80 parts of samarium powder, 8 parts of neodymium powder, 16 parts of silver powder, and 8 parts of yttrium oxide , 16 parts of molybdenum wire, 16 parts of rhenium wire and 9 parts of tin oxide.

[0049] A preparation method of a tungsten alloy shielding plate, comprising the following steps:

[0050] 1) Pour 200 parts of tungsten powder, 70 parts of nickel powder, 120 parts of copper powder, 80 parts of samarium powder, 8 parts of neodymium powder, 16 parts of silver powder, 8 parts of yttrium oxide and 9 parts of tin oxide into the container, and then put Carry out drying treatment in a vacuum heating furnace at a drying temperature of 90°C, a vacuum degree of 7Pa, and a drying time of 11 minutes to obtain dry powder for later use;

[0051] 2) Pour the dry powder prepared in step 1) int...

Embodiment 3

[0059] A tungsten alloy shielding plate, comprising raw materials in the following proportions by weight: 170 parts of tungsten powder, 40 parts of nickel powder, 80 parts of copper powder, 50 parts of samarium powder, 5 parts of neodymium powder, 13 parts of silver powder, and 5 parts of yttrium oxide , 13 parts of molybdenum wire, 13 parts of rhenium wire and 6 parts of tin oxide.

[0060] A preparation method of a tungsten alloy shielding plate, comprising the following steps:

[0061] 1) Pour 170 parts of tungsten powder, 40 parts of nickel powder, 80 parts of copper powder, 50 parts of samarium powder, 5 parts of neodymium powder, 13 parts of silver powder, 5 parts of yttrium oxide and 6 parts of tin oxide into the container, and then place Carry out drying treatment in a vacuum heating furnace at a drying temperature of 80°C, a vacuum degree of 6 Pa, and a drying time of 10 minutes to obtain dry powder for later use;

[0062] 2) Pour the dry powder prepared in step 1) i...

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PUM

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Abstract

The invention discloses a tungsten alloy shield plate. The tungsten alloy shield plate comprises, by weight, 140-200 parts of tungsten powder, 10-70 parts of nickel powder, 50-120 parts of copper powder, 20-80 parts of samarium powder, 2-8 parts of neodymium powder, 10-16 parts of silver powder, 2-8 parts of yttrium oxide, 10-16 parts of molybdenum wires, 10-16 parts of rhenium wires and 3-9 parts of stannic oxide. The tungsten alloy shield plate has the excellent radiation protection effect.

Description

technical field [0001] The invention relates to a tungsten alloy shielding plate and a preparation method thereof. Background technique [0002] Tungsten was first used to make incandescent filaments. In 1909, Coolidge in the United States made tungsten wire by pressing tungsten powder, remelting, swaging, and wire drawing. Since then, the production of tungsten wire has developed rapidly. In 1913, Langmeer and Rogers discovered that tungsten-thorium wires had better electron emission properties than pure tungsten wires, and began to use tungsten-thorium wires, which are still widely used today. In 1922, a tungsten wire with excellent anti-sagging performance was developed, which was a major progress in the research of tungsten wire. Non-sagging tungsten wire is an excellent filament and cathode material for widespread use. In the 1950s and 1960s, extensive exploration and research was carried out on tungsten-based alloys, hoping to develop tungsten alloys that can work a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/06C22C47/14C22C49/10C22F1/18C22F1/16B22F3/16C22C49/02C22C111/00
CPCB22F3/16C22C1/05C22C27/04C22C30/02C22C30/04C22C47/066C22C47/14C22C49/02C22C49/10C22C49/14C22F1/002C22F1/16C22F1/18
Inventor 温浩月
Owner GUANGDONG HUASITE ALLOY PROD CO LTD
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