Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Alloy microwave absorbing material added with vanadium and preparation method

A technology of microwave absorbing materials and alloys, which is applied in the field of preparation of iron-based alloy microwave absorbing materials, can solve the problems of narrow absorbing frequency band, and achieve the effect of low cost and simple preparation process

Inactive Publication Date: 2015-08-19
黄鹏腾
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

FeNd alloys have been extensively studied for their excellent absorbing properties. Although some achievements have been made, there are still shortcomings such as a narrow absorbing frequency band.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take an appropriate amount of metal Fe, Nd and V with a purity greater than 99.5% as Fe, Nd and V according to the atomic ratio 17 Nd 1.8 V 0.2 Ingredients, smelt the prepared raw materials into alloy ingots with the help of a vacuum arc furnace, take out the smelted alloy ingots, and vacuum seal them with quartz glass tubes, and then put the sealed quartz glass tubes into water to check their tightness. Bubble, indicating that the seal is intact, then put the glass tube into the box-type resistance furnace for homogenization annealing treatment, the temperature in the furnace is kept at 500 ° C, the sample is taken out after annealing for 15 days, quenched, and then the glass tube is broken to take out the sample. The surface layer is ground off, and then the mortar is used for preliminary mechanical pulverization. The pulverized samples are poured into a ball mill. Under the protection of gasoline, the mass ratio of ball to material is 15:1 and the speed is 200 r / min...

Embodiment 2

[0026] Take an appropriate amount of metal Fe, Nd and V with a purity greater than 99.5% as Fe, Nd and V according to the atomic ratio 17 Nd 1.7 V 0.3 Ingredients, smelt the prepared raw materials into alloy ingots with the help of a vacuum arc furnace, take out the smelted alloy ingots, and vacuum seal them with quartz glass tubes, and then put the sealed quartz glass tubes into water to check their tightness. Bubble, indicating that the seal is intact, and then put the glass tube into the box-type resistance furnace for homogenization annealing treatment, the temperature in the furnace is kept at 500 ° C, the sample is taken out after annealing for 14 days, quenched, and then the glass tube is smashed to take out the sample. The surface layer is polished off, and then the mortar is used for preliminary mechanical crushing. The crushed samples are poured into a ball mill. Under the protection of gasoline, the mass ratio of ball to material is 15:1 and the speed is 250 r / min....

Embodiment 3

[0028] Take an appropriate amount of metal Fe, Nd and V with a purity greater than 99.5% as Fe, Nd and V according to the atomic ratio 17 Nd 1.6 V 0.4 Ingredients, smelt the prepared raw materials into alloy ingots with the help of a vacuum arc furnace, take out the smelted alloy ingots, and vacuum seal them with quartz glass tubes, and then put the sealed quartz glass tubes into water to check their tightness. Bubble, indicating that the seal is intact, and then put the glass tube into the box-type resistance furnace for homogenization annealing treatment, the temperature in the furnace is kept at 600 ° C, the sample is taken out after annealing for 13 days, quenched, and then the glass tube is broken to take out the sample. Grind the surface layer off, and then use a mortar for preliminary mechanical crushing. Pour the crushed samples into a ball mill. Under the protection of gasoline, the mass ratio of ball to material is 15:1 and the speed is 300 r / min. , use a planetary...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an alloy microwave absorbing material added with vanadium and a preparation method. The preparation method comprises the following steps: taking proper amounts of metal Fe, Nd and V of which the purities are higher than 99.5% respectively for dosage according to the atomic ratio of Fe17Nd2-xVx, wherein X is more than or equal to 0.1 and is less than or equal to 0.8; smelting into an alloy ingot by using a vacuum electric-arc furnace; performing vacuum sealing by using a quartz glass tube; inspecting the airtightness by soaking the glass tube in water; performing operations such as homogenization, quenching and mechanical preliminary pulverization; pouring the sample into a ball-milling jar, and performing ball-milling by using a planetary ball mill under the gasoline environment protection condition; pouring out the gasoline after the ball-milling is finished; taking out sample powder and drying, thus obtaining an alloy micro powder wave absorbing material.

Description

technical field [0001] The invention relates to a microwave absorption material and a preparation method, in particular to a preparation method of a vanadium-added iron-based alloy microwave absorption material. Background technique [0002] In the military, with the continuous development of stealth technology and stealth equipment, microwave absorbing materials are the key to stealth technology, and the development of microwave absorbing materials has become a major subject of material science. And in civilian use, microwave absorbing materials can avoid serious problems such as communication interruption and equipment failure caused by mutual interference of electromagnetic waves generated by a large number of electronic products. As a functional material that can absorb electromagnetic waves, microwave absorbing materials can convert electromagnetic wave energy into other forms of energy, thereby suppressing electromagnetic wave radiation and interference. [0003] The ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C1/02B22F9/04
Inventor 黄鹏腾
Owner 黄鹏腾
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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