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A method for dust-free treatment of beryllium powder

A technology of dusting and inert liquid, which is applied in the field of dust-free treatment of beryllium powder, can solve the problems of flying beryllium powder dust, etc., achieve the effect of preventing oxidation, simple method, and avoiding the contact between beryllium powder and air

Active Publication Date: 2021-11-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that beryllium powder is prone to dust flying during storage, transportation or use, the present invention proposes a dust-free treatment method for beryllium powder

Method used

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  • A method for dust-free treatment of beryllium powder
  • A method for dust-free treatment of beryllium powder

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specific Embodiment approach 1

[0017] Specific embodiment one: the method for dust-free treatment of beryllium powder in this embodiment is carried out according to the following steps:

[0018] 1. Take the beryllium powder and inert liquid in the sealed package;

[0019] The inert liquid is a liquid hydrocarbon that does not react with beryllium powder at room temperature and has a boiling point lower than 400°C, or a polymer that does not react with beryllium powder at room temperature, whose decomposition temperature is lower than 400°C, and whose decomposition products are all volatile products thing;

[0020] 2. Mix the beryllium powder and the inert liquid in the step 1 evenly to obtain the mixture;

[0021] 3. The mixture obtained in step 2 is left to stand for processing, and it is completed. After static treatment, the beryllium powder is fully wetted with the liquid and the inert liquid completely covers the beryllium powder;

[0022] This embodiment has the following beneficial effects:

[00...

specific Embodiment approach 2

[0024] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the liquid hydrocarbons described in step 1 that do not react with beryllium powder at room temperature and have a boiling point lower than 400°C are kerosene, n-undecane, and n-dodecane , n-tridecane, n-tetradecane, n-pentadecane or n-hexadecane; polymers that do not react with beryllium powder at room temperature, whose decomposition temperature is lower than 400°C, and whose decomposition products are all volatile products are poly Ethylene glycol-200, polyethylene glycol-300, polyethylene glycol-400, polypropylene glycol-400, etc.

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment differs from Embodiment 1 or 2 in that: the volume of the inert liquid described in Step 1 is 0.5-2 times the volume of beryllium powder (natural accumulation).

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Abstract

A method for dust-free treatment of beryllium powder relates to a method for dust-free treatment of beryllium powder. The purpose is to solve the problem that beryllium powder is prone to dust flying during storage, transportation or use. The method for dust-free treatment of beryllium powder: take the sealed beryllium powder and the inert liquid, and mix the beryllium powder and the inert liquid evenly to obtain a mixture; The invention is a low-cost non-toxic treatment method for beryllium powder. After the beryllium powder is coated and liquid-sealed by a low-boiling inert liquid, the environmental pollution and health risks caused by the flying of the beryllium powder during the transfer process are avoided, and the protection process is simplified at the same time. The effect of dust-free treatment is achieved; the inert liquid is completely volatilized and has no residue when the temperature is higher than 400 ℃, so it does not affect the performance of the beryllium material and the beryllium composite material; the inert liquid can effectively prevent the oxidation of the beryllium powder. The invention is suitable for the dust-free treatment of beryllium powder.

Description

technical field [0001] The invention relates to a method for dust-free treatment of beryllium powder. Background technique [0002] As a rare light metal, beryllium has outstanding specific stiffness, specific strength, high specific heat capacity and good thermal conductivity. It not only achieves remarkable results in atomic energy reactors, but also is an important raw material for the production of beryllium-containing alloys. , missiles, satellites, spacecraft and aircraft have partially replaced aluminum, magnesium and titanium, occupying a very important position. [0003] At present, the raw material beryllium used for beryllium materials and beryllium alloys is beryllium powder prepared by impact pulverization or atomization pulverization, and beryllium powder is highly toxic, and the flying of beryllium powder dust during storage, transportation and beryllium material preparation will be harmful to human health. It poses a huge threat. Short-term inhalation of hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/02
CPCB22F1/102
Inventor 匡泽洋武高辉杨文澍陈国钦芶华松康鹏超乔菁周畅
Owner HARBIN INST OF TECH
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