Alloy material with high resistivity and high elongation and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of alloy materials and high resistivity, applied in the field of alloy materials and their preparation, to achieve the effects of subsequent processing such as drawing and rolling, excellent plastic deformation ability, and improved mechanical properties
Active Publication Date: 2020-09-18
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Including the need for alloys with higher resistivity to achieve high heat conversion efficiency, and better processing properties to meet the needs of different service environments for material shapes, while maintaining lower costs, while the existing nickel-chromium alloys are becoming more and more The more difficult it is to meet these needs
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0021] (2) a kind of preparation method of the alloy material of high electrical resistivity, high elongation, described method step is as follows:
[0022] ①Smelting: Weigh the raw material according to the chemical composition of the high resistivity alloy material, and prepare the master alloy ingot by vacuum induction melting under the protection of argon;
[0023] ②Remelting and casting: Under the protection of argon, heat the master alloy ingot to 1400-1600°C for remelting, and prepare a high-resistivity alloy material by turning over casting, wherein the current 550A;
[0024] The vacuum degree during melting, remelting and casting is 2.0×10 -3 Pa, the size of the alloy material is 50mm×13mm×40mm.
[0025] (3) The microstructure characterization, electrical resistivity and mechanical properties of the prepared alloy materials were tested under the same conditions: the phase structure used Bruker's X-ray diffractometer (D8 ADVANCE), and the test sample size was 10×10× ...
Embodiment 1
[0027] The chemical composition and mass percentage of the alloy material in this embodiment are: iron: 25%, cobalt: 14%, chromium: 10%, aluminum: 0.5%, non-metallic element silicon: 0.5% and boron: 0.5%, the balance For nickel and unavoidable impurities.
Embodiment 2
[0029] The chemical composition and mass percentage of the alloy material in this embodiment are: iron: 17%, cobalt: 25%, chromium: 18%, aluminum: 5%, silicon: 0.3%, boron: 0.8%, and the balance is nickel and unavoidable impurities.
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
Property
Measurement
Unit
elongation
aaaaa
aaaaa
Login to view more
Abstract
The invention relates to an alloy material with high resistivity and high elongation and a preparation method thereof, and belongs to the field of alloy materials. A total mass of the alloy material is counted as 100%, the alloy material comprises the following chemical components of, by mass in percentage, 17%-25% of iron, 14%-25% of cobalt, 10%-19% of chromium, 0.5%-6% of aluminum, 0.2%-2% of anon-metallic element, the balance nickel and unavoidable impurities, wherein the non-metallic element is one or more of boron, carbon and silicon. Raw materials are smelted, remelted and cast to obtain the alloy material with the high resistivity and the high elongation. By regulating a content of each element, the resistivity of the alloy material is improved, and the mechanical property of the alloy material is improved while a single-phase structure is obtained, processing deformation of different requirements is conveniently realized, and the material has a wide application prospect.
Description
technical field [0001] The invention relates to an alloy material with high resistivity and high elongation and a preparation method thereof, belonging to the field of alloy materials. Background technique [0002] Electrothermal alloys are a class of materials that use the electrical resistance properties of materials to generate Joule effects to convert electrical energy into thermal energy, such as typical nickel-chromium alloy resistance wires. However, with the development of industry, people have higher and higher performance requirements for various heating elements. Including the need for alloys with higher resistivity to achieve high heat conversion efficiency, and better processing properties to meet the needs of different service environments for material shapes, while maintaining lower costs, while the existing nickel-chromium alloys are getting more and more The more difficult it is to meet these needs. Contents of the invention [0003] In view of the probl...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more