Preparation method of nickel niobium alloy

A nickel-niobium alloy and alloy technology, which is applied in the field of preparation of intermediate nickel-niobium alloys, can solve the problems of poor alloy uniformity and compactness, affecting alloy performance, reducing alloy purity, etc., achieving uniform and stable alloy, improving quality, and solving easy segregation problems. Effect

Inactive Publication Date: 2015-10-21
CHENGDE TIANDA VANADIUM IND
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many kinds of production methods of nickel-niobium alloy in China, most of which adopt metallothermic reduction method. Because most of metallothermic reduction methods use aluminum as reducing agent, some aluminum elements inevitably exist in nickel-niobium alloy, which undoubtedly reduces The purity of the alloy affects the performance of the alloy. At the same time, the metallothermic reduction method is naturally cooled in the air in most cases, and the cooling time is long, resulting in poor uniformity and compactness of the smelted alloy.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of nickel niobium alloy

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] A method for preparing nickel-niobium alloy, which adopts intermediate frequency vacuum induction melting method, uses high-purity nickel and high-purity niobium as raw materials, and obtains the final product through intermediate frequency vacuum induction furnace melting; alloy composition by weight percentage, Nb: 59.0% ~ 61.0 %, Ni is the balance; a better alloy composition is: Nb: 59.5% to 60.5%, Ni is the balance.

[0018] The preparation method of a kind of nickel-niobium alloy of the present invention, described high-purity nickel and high-purity niobium raw material, its purity is greater than 99%; Its high-purity nickel and high-purity niobium raw material are dried, and drying temperature is 100 ℃~120 ℃, Drying time ≥ 4 hours. under vacuum conditions. According to conventional steps, heating and melting by electromagnetic induction, electromagnetic stirring to make the alloy composition uniform, and obtain the final product; the process parameters of smeltin...

Embodiment 2～5

[0036] Embodiment 2~5, operate according to the method of embodiment 1, see the table below for the difference with embodiment 1.

[0037] Table 2 Examples of nickel-niobium alloys

[0038]

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 discloses a preparation method of a nickel niobium alloy, and relates to a preparation method for producing an intermediate alloy of a titanium alloy. The preparation method is characterized in that high purity nickel and high purity niobium are used as raw materials in the preparation process of the nickel niobium alloy; and the nickel niobium alloy is obtained by smelting through a medium-frequency vacuum induction furnace. Compared with the prior art, the preparation method has the following benefits: (1) the alloy smelting method effectively controls the alloy components, eliminates the influence of the aluminum element on the alloy performance, and guarantees the alloy quality characteristics; (2) the components are stable; the intermediate alloy is produced with the metal oxide as the raw material by using the metallothermics; the alloy is weak in uniformity, higher in segregation degree and bad in compactness; and the produced alloy is stable in uniformity and excellent in compactness; and (3) the alloy smelting method effectively eliminates the influence of the aluminum element on the alloy components, solves the defects of easy alloy segregation and weak compactness, improves the alloy quality, is convenient for the titanium alloy production and operation, and is convenient for the titanium alloy preparation.

Description

technical field [0001] The invention relates to a preparation method of a nickel-niobium alloy, which relates to a preparation method of an intermediate nickel-niobium alloy used for producing high-quality aerospace-grade titanium alloys. Background technique [0002] Titanium alloys are widely used in military industry, aerospace industry and civilian industry, and master alloys are important raw materials for the production of titanium alloys. Nickel-based alloys have the characteristics of high temperature resistance and corrosion resistance, and are often used in the manufacture of aircraft jet engine blades, and play an important role in corrosion-resistant applications in manufacturing. [0003] At present, there are many kinds of production methods of nickel-niobium alloy in China, most of which adopt metallothermic reduction method. Because most of metallothermic reduction methods use aluminum as reducing agent, some aluminum elements inevitably exist in nickel-niobi...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C27/02
Inventor 王志军刘建丰刘强朱艳彬胡利志
Owner CHENGDE TIANDA VANADIUM IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap