CN110669998A - Preparation process of high-stability iron-chromium-aluminum resistance wire - Google Patents
Preparation process of high-stability iron-chromium-aluminum resistance wire Download PDFInfo
- Publication number
- CN110669998A CN110669998A CN201911028652.5A CN201911028652A CN110669998A CN 110669998 A CN110669998 A CN 110669998A CN 201911028652 A CN201911028652 A CN 201911028652A CN 110669998 A CN110669998 A CN 110669998A
- Authority
- CN
- China
- Prior art keywords
- resistance wire
- diameter
- chromium
- temperature
- preparation process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
Abstract
The invention relates to a preparation process of a high-stability iron-chromium-aluminum resistance wire, which comprises the following steps: s1, pretreating raw materials, and baking Ti, Cr, Al and Fe at high temperature; s2, putting the baked raw materials into a vacuum melting furnace for smelting to obtain an alloy ingot; s3, hot forging the alloy ingot into a square billet; s4, carrying out hot rolling processing on the square billet to obtain a hot-rolled wire rod with the diameter of 10 mm; s5, stretching the round bar for the first time by using a die to obtain a resistance wire with the diameter of 5 mm; s6, annealing the resistance wire with the diameter of 5 mm; s7, washing the resistance wire with water; s8, performing secondary stretching on the resistance wire with the diameter of 5mm by using a die; obtaining a resistance wire with the diameter of 2 mm; and S9, annealing the resistance wire with the diameter of 2mm directly to obtain the iron-chromium-aluminum resistance wire. The invention has higher resistivity and lower resistance temperature coefficient, and can ensure the stable and efficient work of the resistance wire.
Description
Technical Field
The invention relates to the field of electrothermal alloy, in particular to a preparation process of a high-stability iron-chromium-aluminum resistance wire.
Background
The electrothermal alloy is an alloy which uses the resistance characteristic of a substance to manufacture a heating body, and when current passes through the alloy element, joule effect is generated, and electric energy is converted into heat energy. The resistivity and the resistance temperature coefficient are important indexes for measuring the resistance wire, the higher the resistivity is, the higher the heating efficiency is, and the lower the resistance temperature coefficient is, the more stable the resistance temperature coefficient is.
Disclosure of Invention
The invention aims to provide a preparation process of a high-stability iron-chromium-aluminum resistance wire.
The invention realizes the purpose through the following technical scheme: a preparation process of a high-stability iron-chromium-aluminum resistance wire comprises the following steps:
s1, pretreating raw materials, and baking 0.1-0.2 part of Ti, 26.5-27.5 parts of Cr, 6-7 parts of Al and 65.3-67.4 parts of Fe at high temperature;
s2, alloy smelting, namely smelting the roasted raw materials in a vacuum smelting furnace to obtain alloy cast ingots;
s3, hot forging the alloy ingot into a square billet;
s4, carrying out hot rolling processing on the square billet to obtain a hot-rolled wire rod with the diameter of 10 mm;
s5, stretching the round bar for the first time by using a die to obtain a resistance wire with the diameter of 5 mm;
s6, annealing the resistance wire with the diameter of 5mm, and protecting with hydrogen;
s7, washing the resistance wire with the thickness of 5mm with water;
s8, performing secondary stretching on the resistance wire with the diameter of 5mm by using a die; obtaining a resistance wire with the diameter of 2 mm;
and S9, annealing the resistance wire with the diameter of 2mm directly, and performing hydrogen protection to obtain the iron-chromium-aluminum resistance wire.
Further, the baking temperature of S1 is 400-500 ℃, and the baking time is 6-8 h.
Furthermore, the smelting temperature of S2 is 1900-2000 ℃, and the time is 40-60 min.
Further, the temperature of the S4 is 1000-1200 ℃,
further, the annealing temperature of S6 is 800-1000 ℃, and the temperature is kept for 2-3 h.
Further, the annealing temperature of S9 is 700-900 ℃, the temperature is kept for 2-3h, and the cooling is carried out for 1-2 h.
Compared with the prior art, the preparation process of the high-stability iron-chromium-aluminum resistance wire has the beneficial effects that: the resistance wire has higher resistivity and lower resistance temperature coefficient, and can ensure the stable and efficient work of the resistance wire.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
Example 1
A preparation process of a high-stability iron-chromium-aluminum resistance wire comprises the following steps:
s1, pretreating raw materials, and baking 0.1 part of Ti, 26.5 parts of Cr, 7 parts of Al and 67.4 parts of Fe at a high temperature of 400 ℃ for 8 hours;
s2, alloy smelting, namely smelting the roasted raw materials in a vacuum smelting furnace at 1950 ℃ for 40min to obtain alloy cast ingots;
s3, hot forging the alloy ingot into a square billet;
s4, carrying out hot rolling processing on the square billet at the temperature of 1000 ℃ to obtain a hot-rolled wire rod with the diameter of 10 mm;
s5, stretching the round bar for the first time by using a die to obtain a resistance wire with the diameter of 5 mm;
s6, annealing the resistance wire with the diameter of 5mm, and preserving heat for 3 hours at the annealing temperature of 800 ℃ under the protection of hydrogen;
s7, washing the resistance wire with the thickness of 5mm with water;
s8, performing secondary stretching on the resistance wire with the diameter of 5mm by using a die; obtaining a resistance wire with the diameter of 2 mm;
s9, annealing the resistance wire with the diameter of 2mm directly, protecting the annealing temperature by using hydrogen at 700 ℃, preserving the heat for 2h, and cooling for 1h to obtain the iron-chromium-aluminum resistance wire.
Example 2
A preparation process of a high-stability iron-chromium-aluminum resistance wire comprises the following steps:
s1, pretreating raw materials, and baking 0.2 part of Ti, 27.5 parts of Cr, 6 parts of Al and 65.3 parts of Fe at a high temperature of 500 ℃ for 8 hours;
s2, alloy smelting, namely smelting the roasted raw materials in a vacuum smelting furnace at 2000 ℃ for 60min to obtain alloy cast ingots;
s3, hot forging the alloy ingot into a square billet;
s4, carrying out hot rolling processing on the square billet at the temperature of 1200 ℃ to obtain a hot-rolled wire rod with the diameter of 10 mm;
s5, stretching the round bar for the first time by using a die to obtain a resistance wire with the diameter of 5 mm;
s6, annealing the resistance wire with the diameter of 5mm, and preserving heat for 2 hours at the annealing temperature of 1000 ℃ under the protection of hydrogen;
s7, washing the resistance wire with the thickness of 5mm with water;
s8, performing secondary stretching on the resistance wire with the diameter of 5mm by using a die; obtaining a resistance wire with the diameter of 2 mm;
and S9, annealing the resistance wire with the diameter of 2mm directly, protecting the annealing temperature by using hydrogen at 900 ℃, preserving the heat for 3h, and cooling for 2h to obtain the iron-chromium-aluminum resistance wire.
Example 3
A preparation process of a high-stability iron-chromium-aluminum resistance wire comprises the following steps:
s1, pretreating raw materials, and baking 0.15 part of Ti, 27 parts of Cr, 6.5 parts of Al and 66 parts of Fe at the high temperature of 450 ℃ for 7 hours;
s2, alloy smelting, namely smelting the roasted raw materials in a vacuum smelting furnace at 1900 ℃ for 50min to obtain alloy cast ingots;
s3, hot forging the alloy ingot into a square billet;
s4, carrying out hot rolling processing on the square billet at the temperature of 1100 ℃ to obtain a hot-rolled wire rod with the diameter of 10 mm;
s5, stretching the round bar for the first time by using a die to obtain a resistance wire with the diameter of 5 mm;
s6, annealing the resistance wire with the diameter of 5mm by adopting hydrogen protection, keeping the annealing temperature at 900 ℃ and keeping the temperature for 2.5 h;
s7, washing the resistance wire with the thickness of 5mm with water;
s8, performing secondary stretching on the resistance wire with the diameter of 5mm by using a die; obtaining a resistance wire with the diameter of 2 mm;
and S9, annealing the resistance wire with the diameter of 2mm directly, protecting the annealing temperature by using hydrogen at 800 ℃, preserving the heat for 2.5h, and cooling for 1.5h to obtain the iron-chromium-aluminum resistance wire.
The iron-chromium-aluminum resistance wire prepared by the preparation process has the maximum use temperature of 1400 ℃ and the resistivity of 1.53 +/-0.07 omega mm2M, temperature coefficient of resistance of 5 x 10-5/° C, density 7.1/cm3The linear expansion coefficient (20-100 ℃) is 16 x (2 x 10)-6/° c), specific heat of 0.494KJ/kg.k, thermal coefficient of 12w/m.k, and elongation of more than or equal to 10%.
The invention has higher resistivity and lower resistance temperature coefficient, and can ensure the stable and efficient work of the resistance wire.
The two characteristics make up the defects of the outdoor fabric fully, the cost has great competitiveness, and the market space is very large. While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A preparation process of a high-stability iron-chromium-aluminum resistance wire is characterized by comprising the following steps:
s1, pretreating raw materials, and baking 0.1-0.2 part of Ti, 26.5-27.5 parts of Cr, 6-7 parts of Al and 65.3-67.4 parts of Fe at high temperature;
s2, alloy smelting, namely smelting the roasted raw materials in a vacuum smelting furnace to obtain alloy cast ingots;
s3, hot forging the alloy ingot into a square billet;
s4, carrying out hot rolling processing on the square billet to obtain a hot-rolled wire rod with the diameter of 10 mm;
s5, stretching the round bar for the first time by using a die to obtain a resistance wire with the diameter of 5 mm;
s6, annealing the resistance wire with the diameter of 5mm, and protecting with hydrogen;
s7, washing the resistance wire with the thickness of 5mm with water;
s8, performing secondary stretching on the resistance wire with the diameter of 5mm by using a die; obtaining a resistance wire with the diameter of 2 mm;
and S9, annealing the resistance wire with the diameter of 2mm directly, and performing hydrogen protection to obtain the iron-chromium-aluminum resistance wire.
2. The preparation process of the high-stability iron-chromium-aluminum resistance wire according to claim 1, which is characterized in that: the baking temperature of the S1 is 400-500 ℃, and the baking time is 6-8 h.
3. The preparation process of the high-stability iron-chromium-aluminum resistance wire according to claim 1, which is characterized in that: the smelting temperature of S2 is 1900-2000 ℃, and the time is 40-60 min.
4. The preparation process of the high-stability iron-chromium-aluminum resistance wire according to claim 1, which is characterized in that: the temperature of the S4 is 1000-1200 ℃.
5. The preparation process of the high-stability iron-chromium-aluminum resistance wire according to claim 1, which is characterized in that: the annealing temperature of S6 is 800-1000 ℃, and the temperature is kept for 2-3 h.
6. The preparation process of the high-stability iron-chromium-aluminum resistance wire according to claim 1, which is characterized in that: the annealing temperature of S9 is 700-900 ℃, the temperature is kept for 2-3h, and the cooling is carried out for 1-2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028652.5A CN110669998A (en) | 2019-10-28 | 2019-10-28 | Preparation process of high-stability iron-chromium-aluminum resistance wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028652.5A CN110669998A (en) | 2019-10-28 | 2019-10-28 | Preparation process of high-stability iron-chromium-aluminum resistance wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110669998A true CN110669998A (en) | 2020-01-10 |
Family
ID=69084193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911028652.5A Pending CN110669998A (en) | 2019-10-28 | 2019-10-28 | Preparation process of high-stability iron-chromium-aluminum resistance wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110669998A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255648A (en) * | 1988-04-05 | 1989-10-12 | Kawasaki Steel Corp | Fe-cr-al alloy excellent in oxidation resistance and resistance to high temperature embrittlement |
| JP2002249858A (en) * | 2000-12-28 | 2002-09-06 | Korea Electrotechnology Research Inst | Iron - chromium - aluminum alloy for heating wire |
| CN1392812A (en) * | 2000-09-04 | 2003-01-22 | 桑德维克公司 | Fecral-alloy for use as electrical heating elements |
| CN101231197A (en) * | 2007-01-25 | 2008-07-30 | 袁勤华 | Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof |
| CN102162064A (en) * | 2011-05-08 | 2011-08-24 | 山西太钢不锈钢股份有限公司 | Iron-chromium-aluminum alloy and strip coil thereof |
| CN104513929A (en) * | 2013-09-29 | 2015-04-15 | 上海埃鲁秘工业炉制造有限公司 | Resistance wire alloy and pre-oxidation treatment method |
| CN106636963A (en) * | 2016-10-21 | 2017-05-10 | 广东电网有限责任公司电力科学研究院 | Novel alloy material |
-
2019
- 2019-10-28 CN CN201911028652.5A patent/CN110669998A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255648A (en) * | 1988-04-05 | 1989-10-12 | Kawasaki Steel Corp | Fe-cr-al alloy excellent in oxidation resistance and resistance to high temperature embrittlement |
| CN1392812A (en) * | 2000-09-04 | 2003-01-22 | 桑德维克公司 | Fecral-alloy for use as electrical heating elements |
| JP2002249858A (en) * | 2000-12-28 | 2002-09-06 | Korea Electrotechnology Research Inst | Iron - chromium - aluminum alloy for heating wire |
| CN101231197A (en) * | 2007-01-25 | 2008-07-30 | 袁勤华 | Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof |
| CN102162064A (en) * | 2011-05-08 | 2011-08-24 | 山西太钢不锈钢股份有限公司 | Iron-chromium-aluminum alloy and strip coil thereof |
| CN104513929A (en) * | 2013-09-29 | 2015-04-15 | 上海埃鲁秘工业炉制造有限公司 | Resistance wire alloy and pre-oxidation treatment method |
| CN106636963A (en) * | 2016-10-21 | 2017-05-10 | 广东电网有限责任公司电力科学研究院 | Novel alloy material |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局: "《中华人民共和国国家标准GB/T 1234-2012》", 30 April 2013, 中国标准出版社 * |
| 邢宜泺: "1400℃铁铬铝电热合金", 《上海冶金》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5086598B2 (en) | Cold work material | |
| CN106282836A (en) | Steam turbine is by 2Cr11MoVNbN forging and manufacture method thereof | |
| CN103952594B (en) | A kind of preparation method of nickel chromium triangle system multi-element high-resistance electrothermal alloy | |
| CN104073684A (en) | Titanium alloy containing Cr and Mn elements and preparation method thereof | |
| CN103160720A (en) | Method for producing aluminum alloy bar material | |
| CN111118348A (en) | Preparation method of electrothermal alloy nickel-chromium wire | |
| CN104630633A (en) | Preparation method of anti-carburizing electrothermal alloy | |
| CN104372203A (en) | Novel alpha titanium alloy and preparation method of panel and bar of alpha titanium alloy | |
| JP5086592B2 (en) | Cold work material | |
| CN108998635B (en) | The preparation method of anti-oxidant electrothermal alloy | |
| CN109454122A (en) | A kind of preparation process of nickel chromium triangle ferro-aluminum precision electrical resistance alloy band | |
| CN103014510A (en) | High-strength cold-extrusion die steel and processing technology thereof | |
| CN103834872A (en) | Die steel with high-wearing resistance | |
| CN109295346B (en) | High-conductivity soft aluminum alloy and preparation method and application thereof | |
| CN104233137B (en) | Deformation and thermal treatment technology of nichrome alloy | |
| WO2023050860A1 (en) | Multi-component precision high-resistance alloy with high strength and toughness, and preparation method therefor | |
| CN102787263B (en) | Method for manufacturing aluminum alloy rivet rod for aerospace product | |
| CN109554578B (en) | Negative expansion memory alloy and preparation method thereof | |
| CN103938058A (en) | Method for preparing nickel/chromium/iron multi-component high-resistance electrothermal alloy strip | |
| CN114058906B (en) | Large-size Ni-Cr electrothermal alloy blank and hot working method | |
| CN107267901A (en) | A kind of preparation method of high intensity without ferromagnetism texture Ni W alloy base band | |
| CN110616358A (en) | Preparation process of high-durability nickel-chromium resistance wire | |
| CN105323878A (en) | Heating wire material and preparation method thereof | |
| CN106337156B (en) | The manufacturing method of anti-corrosion Langaloy | |
| CN110669998A (en) | Preparation process of high-stability iron-chromium-aluminum resistance wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
|
| RJ01 | Rejection of invention patent application after publication |