Preparation method for superfine zirconium powder
A zirconium powder and powder technology is applied in the field of preparation of ultra-fine zirconium powder, which can solve the problems that ultra-fine zirconium powder is prone to spontaneous combustion and self-explosion, restricts ultra-fine zirconium powder, safety accidents, etc., so as to eliminate the risk of spontaneous combustion and self-explosion and reduce surface activity. , the effect of inhibiting growth behavior
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0045] Step 1 Sponge zirconium hydropermeation:
[0046] The material of the grinding balls used in this embodiment is cemented carbide balls.
[0047]Take 2kg of sponge zirconium whose composition requirements meet the industry standard of YS / T397~2007, and mechanically crush it to a particle size of less than 3mm, and place it in a vacuum furnace. The stages are kept warm for 1 hour each, and at the end of the heat preservation, high-purity hydrogen gas permeates for 2 hours at a constant temperature of 650°C;
[0048] Step 2 mechanically crushing zirconium hydride particles:
[0049] Divide the zirconium hydride particles obtained in the first step into 4 groups of 500g each, numbered 1#, 2#, 3#, 4#, and add 50g sodium chloride, 50g potassium chloride, 62.5g sodium sulfate, 62.5 g Potassium sulfate is subjected to high-energy ball milling in anhydrous ethanol medium, the grinding balls are cemented carbide balls, the mass ratio of grinding balls to zirconium hydride is 8:...
Embodiment 2
[0060] The material of the grinding balls used in this embodiment is cemented carbide balls.
[0061] Step 1 Sponge zirconium hydropermeation:
[0062] Take 2kg of sponge zirconium whose composition requirements meet the industry standard of YS / T397~2007, and mechanically crush it to a particle size of less than 3mm, and place it in a vacuum furnace. The stages are kept warm for 1 hour each, and at the end of the heat preservation, high-purity hydrogen gas permeates for 2 hours at a constant temperature of 650°C;
[0063] Step 2 mechanically crushing zirconium hydride particles:
[0064] Add 200g of sodium chloride to the zirconium hydride particles obtained in the first step and carry out high-energy ball milling in anhydrous ethanol medium. The mass ratio of balls to zirconium hydride is 8:1, the ball milling speed is 40r / min, and the liquid level of the ball milling medium is high Take 2 cm of zirconium hydride powder, and after ball milling for 2 hours, vacuum-dry at a v...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com