Nickel-chromium high-resistance electrothermal alloy
An electrothermal alloy, high-resistance technology, applied in the field of alloy materials, can solve the problems of material cracking, wave shape, tensile strength, yield strength and other problems such as unsatisfactory physical and chemical properties, and achieve the effect of uniform heating and improved oxidation resistance.
Active Publication Date: 2012-06-13
JIANGSU LIXIN ALLOY IND GENERAL
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The maximum service temperature of components made of other alloys is 1200 ° C, and the surface load rate (surface power) is 1.5 W / cm 2 , when the material needs to be subjected to high temperature conditions above 1200°C, it is prone to cracking and waving, and its physical and chemical properties such as tensile strength and yield strength are not ideal
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0009] A nickel-chromium high-resistance electric heating alloy, its chemical composition and mass percentage content are: C is 0.02, P is 0.01, S is 0.01, Mn is 0.20, Si is 1.0, Cr is 20.0, Al is 0.1, and Fe is 0.8 , Ti is 0.1, Zr is 0.5, Ce is 0.05, and Ni is 77.21.
Embodiment 2
[0011] A nickel-chromium high-resistance electric heating alloy, its chemical composition and mass percentage content are: C is 0.04, P is 0.02, S is 0.011, Mn is 0.3, Si is 1.5, Cr is 23, Al is 0.15, Fe is 0.7, Ti is 0.18, Zr is 0.2, La is 0.03, and Ni is 73.869.
Embodiment 3
[0013] A nickel-chromium high-resistance electric heating alloy, its chemical composition and mass percentage content are: C is 0.045, P is 0.017, S is 0.013, Mn is 0.55, Si is 1.2, Cr is 22, Al is 0.18, and Fe is 0.6 , Ti is 0.17, Zr is 0.28, Y is 0.03, and Ni is 74.915.
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 |
|---|---|---|
| melting point | aaaaa | aaaaa |
| boiling point | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a nickel-chromium high-resistance electrothermal alloy. The alloy is characterized by comprising the following components in percentage by mass: 0.02 to 0.06 percent of C, 0.010 to 0.020 percent of P, 0.010 to 0.015 percent of S, 0.02 to 0.60 percent of Mn, 1.00 to 1.50 percent of Si, 20.0 to 23.0 percent of Cr, 0.1 to 0.20 percent of Al, 0.4 to 0.8 percent of Fe, 0.1 to 0.20 percent of Ti, 0.20 to 0.50 percent of Zr, 0.01 to 0.05 percent of RE and the balance of Ni. Metal zirconium and a rare-earth material are added into a metal alloy, the zirconium is contacted withthe air to form a zirconia protective layer, so that the surface oxidation resistance of the alloy is greatly improved; and moreover, far infrared rays can be generated, and heating is uniform, so that the highest operating temperature of the alloy steel can be up to 1,300 DEG C, and the surface load of the alloy steel can be up to 5 W / cm<2>.
Description
technical field [0001] The invention relates to an alloy material, specifically a nickel-chromium high-resistance electrothermal alloy, which belongs to the field of metallurgy. Background technique [0002] High-resistance electrothermal alloys refer to alloys that are used to manufacture electric heating elements with resistance as the main characteristic. This type of alloy can be divided into iron-chromium-aluminum alloys, iron-chromium-nickel alloys, nickel- Three types of chromium alloys. Commonly used grades are 0Cr25Al5, 0Cr21Al6Nb, Cr15Ni60, Cr20Ni80, Cr30Ni70, etc. Cr20Ni80 (nickel-chromium wire) alloy has excellent comprehensive properties and is the first choice for making high-quality electric heating elements. It has good oxygen resistance, high strength, non-magnetic, high emissivity, good corrosion resistance, and no softening. Series of advantages, no deformation and small permanent elongation when used for a long time, the chemical composition and mass pe...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05
Inventor 杜小良
Owner JIANGSU LIXIN ALLOY IND GENERAL