Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Preparation method of high-surface-quality and high-strength nickel alloy strip

A high-strength, high-surface technology, applied in the direction of metal rolling, manufacturing tools, heat treatment equipment, etc., can solve the problems of nickel strip surface quality decline, affect the economic benefits of enterprises, and low surface hardness, so as to improve surface finish and prevent Effect of casting spatter and improvement of compactness

Active Publication Date: 2019-12-03
无锡市东杨新材料股份有限公司
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After complete recrystallization heat treatment, the nickel strip has low strength and is easily deformed during transportation and production, which has become a major problem in deep processing
At the same time, during the rolling process of nickel material, there will be high heating temperature, serious oxidation problems on the surface, and low surface hardness, which will cause the surface quality of the nickel strip to decline during the rolling process, resulting in an increase in the defective rate. Seriously affect the economic benefits of enterprises
At present, it has been reported that the strength and hardness of the nickel strip can be improved by solid solution strengthening of trace alloy elements, and the surface quality can be improved, but the effect is minimal

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] A method for preparing a high-surface-quality, high-strength nickel alloy strip, comprising the following steps

[0025] (1) Preparation of nickel-yttrium alloy billet: Pure nickel and pure yttrium metal raw materials are vacuumed to 2×10 -2 Melt in a vacuum induction melting furnace with MPa and a temperature of 1453°C to melt and boil and refine for 1 minute. After refining, adjust the temperature of the vacuum induction melting furnace to 1250°C, add a deoxidizer, refine for 10 minutes, and then pour the alloy melt Solidified into an alloy billet in a metal mold, the mass fraction of yttrium in the alloy is 0.02%;

[0026] (2) Billet preheating: Preheat the alloy billet above in an air heating furnace at a heating temperature of 800°C to generate Ni on the surface of the alloy 2 o 3 / Y 2 o 3 composite oxides;

[0027] (3) Hot rolling: the above-mentioned preheated billet is subjected to multi-pass hot rolling to form a plate of required thickness;

[0028] (4)...

Embodiment 2

[0035] A method for preparing a high-surface-quality, high-strength nickel alloy strip, comprising the following steps:

[0036] (1) Preparation of nickel-yttrium alloy billet: Pure nickel and pure yttrium metal raw materials are vacuumed to 2×10 -2 Melt in a vacuum induction melting furnace with MPa and a temperature of 1430°C to melt and boil and refine for 2 minutes. After refining, adjust the temperature of the vacuum induction melting furnace to 1200°C, add a deoxidizer, refine for 10 minutes, and then pour the alloy melt Solidified into an alloy billet in a metal mold, the mass fraction of yttrium in the alloy is 0.06%;

[0037] (2) Billet preheating: Preheat the above alloy billet in an air heating furnace at a heating temperature of 900°C to generate Ni on the surface of the alloy 2 o 3 / Y 2 o 3 composite oxides;

[0038] (3) Hot rolling: the above-mentioned preheated billet is subjected to multi-pass hot rolling to form a plate of required thickness;

[0039] (...

Embodiment 3

[0046] A method for preparing a high-surface-quality, high-strength nickel alloy strip, comprising the following steps:

[0047] (1) Preparation of nickel-yttrium alloy billet: Pure nickel and pure yttrium metal raw materials were prepared in a vacuum of 3×10 -2 Melt in a vacuum induction melting furnace with MPa and a temperature of 1430°C to melt and boil and refine for 1 minute. After refining, adjust the temperature of the vacuum induction melting furnace to 1200°C, add a deoxidizer, refine for 10 minutes, and then pour the alloy melt Solidified into an alloy billet in a metal mold, the mass fraction of yttrium in the alloy is 0.08%;

[0048] (2) Billet preheating: Preheat the alloy billet above in an air heating furnace at a heating temperature of 1100°C to generate Ni on the surface of the alloy 2 o 3 / Y 2 o 3 composite oxides;

[0049] (3) Hot rolling: the above-mentioned preheated billet is subjected to multi-pass hot rolling to form a plate of required thickness...

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 belongs to the technical field of nickel strip processing, and particularly relates to a preparation method of a high-surface-quality and high-strength nickel alloy strip. A deoxidizingagent is added in the refining process; pure nickel and pure yttrium are subjected to vacuum casting to form a nickel-yttrium alloy square billet to be preheated in air and then hot rolling is carriedout; a Ni2O3 / Y2O3 composite oxide is generated on the surface, and ni / Y2O3 is generated after hydrogen reduction annealing; cold-rolling is carried out to form a strip, nano yttrium oxide is generated on the surface of the nickel-yttrium alloy square billet when the nickel-yttrium alloy square billet is preheated in air, so the surface hardness, the matrix strength and the high-temperature oxidation resistance can be improved, the surface smoothness and the surface precision of the plate strip can be improved in the hot / cold rolling machining process, and due to the fact that the size of yttrium oxide particles is nanoscale and the content of the yttrium oxide particles is very small (the mass fraction is smaller than 0.2%), the influence on the heat conduction and electric conduction performance of the nickel material is very small. According to the prepared nickel alloy strip, the strength, hardness and surface quality of the nickel alloy strip can be improved at the same time so asto meet the market requirement for the high-surface-quality nickel alloy strip at present.

Description

technical field [0001] The invention belongs to the technical field of nickel material processing, and in particular relates to a method for preparing nickel alloy strips with high surface quality and high strength. Background technique [0002] Pure nickel has excellent mechanical properties, high corrosion resistance in various environments, magnetostriction and magnetism, high heat transfer, high electrical conductivity, low gas volume and low vapor pressure, etc. , has good spot welding performance, high tensile tension, low resistivity, mainly used in the manufacture of nickel-metal hydride batteries, lithium batteries, combined batteries and electric tools, communication information, special light bulbs and other industries. [0003] After complete recrystallization heat treatment, the nickel strip has low strength and is easily deformed during transportation and production, which has become a major problem in deep processing. At the same time, during the rolling proc...

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): C22C1/02C22C19/03C22F1/10C22F1/02C22C1/06C21D9/00B21B3/00
CPCB21B3/00C21D9/0081C22C1/023C22C1/06C22C19/03C22F1/02C22F1/10
Inventor 陈存广徐建勋
Owner 无锡市东杨新材料股份有限公司
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
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