CN105154776A - Electric heating alloy material with excellent high-temperature oxidation resistance and preparing method for material - Google Patents
Electric heating alloy material with excellent high-temperature oxidation resistance and preparing method for material Download PDFInfo
- Publication number
- CN105154776A CN105154776A CN201510516555.6A CN201510516555A CN105154776A CN 105154776 A CN105154776 A CN 105154776A CN 201510516555 A CN201510516555 A CN 201510516555A CN 105154776 A CN105154776 A CN 105154776A
- Authority
- CN
- China
- Prior art keywords
- oxidation resistance
- electrical heating
- temperature oxidation
- excellent high
- high temperature
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses an electric heating alloy material with excellent high-temperature oxidation resistance and a preparing method for the material. The electric heating alloy material comprises, by mass percent, not larger than 0.06% of C, 19.5% to 23.5% of Cr, 5.5% to 6.5% of Al, not larger than 0.03% of N, not larger than 0.5% of Si, not larger than 0.5% of Mn, not larger than 0.03% of P, not larger than 0.03% of S, 0.5% to 2.5% of Co, 0.1% to 1.0% of Nb, 0.1% to 0.25% of Zr, 0.02% to 0.2% of Y and the balance Fe and inevitable impurities. A vacuum induction smelting technology is adopted, casting moulding is achieved after smelting, and the material is finally prepared through hot forging, hot rolling, recrystallizing heat treatment, cold rolling and cold drawing. The electric heating alloy material overcomes high-temperature embrittlement of an existing Fe-Cr-Al alloy and improves oxidation resistance, heat resistance of the material is improved, the high-temperature oxidation resistance is enhanced, and the excellent comprehensive performance of the material is achieved.
Description
Technical field
The invention belongs to steel alloy material technical field, be specifically related to a kind of electrical heating alloys material and preparation method thereof.
Background technology
Fe-Cr-Al electrical heating alloys belongs to ultrahigh-temperature rank electrical heating alloys, and because containing a large amount of chromium, aluminium element in alloy, alloy has excellent high-temperature oxidation resistance.Fe-Cr-Al electrical heating alloys is the most widely used electrical heating alloys of China; it has good thermotolerance, high temperature oxidation resistance; resistivity coefficient is larger; temperature coefficient of resistance is little; power stability, generates fine and close Al2O3 and Cr2O3 oxide film, plays a good protection in oxidizing atmosphere; and cheap, be mainly used to manufacture various medium and high temperature heating inset.Electric energy conversion can be effectively heat energy by high resistivity, can also save thermo electric material.Fe-Cr-Al electrical heating alloys is generally containing 13-27wt.%Cr, 3.5-7wt.%Al, and matrix has body-centered cubic structure.Conventional Fe-Cr-Al alloy material has 0Cr23Al5,0Cr21Al6 and 0Cr27Al7Mo2 etc.The reasonable model being the KANTHAL company of Sweden produces that current Fe-Cr-Al alloy does is KanthalA-1 alloy, and its use temperature can reach 1400 ° of C, and has very high resistivity and excellent high-temperature oxidation resistance; And the use temperature as normal in 0Cr27Al7Mo2 that China produces is at 1200-1300 ° of C, compare a certain distance in addition with same kind of products at abroad.The Fe-Cr-Al electrical heating alloys hot strength of domestic production is low, easily produces creep strain, and after applied at elevated temperature, grain growth is remarkable, and abnormal thick crystal grain easily causes the brittle failure of heating element.At present, during the electric stove wire of Fe-Cr-Al electrical heating alloys for the manufacture of process furnace, it is too short that the subject matter of existence is exactly work-ing life.If replace Fe-Cr-Al alloy by Ni-Cr alloy, then use temperature is difficult to meet; If replace with refractory metal or non-metal electric heating body, price is expensive again.Therefore, the development of industrial furnace, in the urgent need to developing new Fe-Cr-Al electrical heating alloys, improves its hot strength, oxidation-resistance and work-ing life.
Summary of the invention
The object of the present invention is to provide a kind of electrical heating alloys material with excellent high temperature oxidation resistance and preparation method thereof, the electrical heating alloys in this composition range is mainly used in the electrical heating element of working temperature at the powder metallurgy sintering furnace, high temperature heat treatment furnace etc. of 1000-1300 ° of C.
The present invention is achieved by the following technical solution:
There is the electrical heating alloys material of excellent high temperature oxidation resistance, there is following composition and mass percent (%): C≤0.06, Cr:19.5-23.5, Al:5.5-6.5, N≤0.03, Si≤0.5, Mn≤0.5, P≤0.03, S≤0.03, Co:0.5-2.5, Nb:0.1-1.0, Zr:0.1-0.25, Y:0.02-0.2, surplus is Fe and inevitable impurity.
There is following composition and mass percent (%): 0.025 < C≤0.06, Cr:21.6-23.5, Al:5.5-6.5, N≤0.03, Si≤0.5,0.21 < Mn≤0.5, P≤0.03, S≤0.03, Co:0.5-2.5, Nb:0.1-1.0, Zr:0.16-0.25, Y:0.02-0.2, surplus is Fe and inevitable impurity.
The described preparation method with the electrical heating alloys material of excellent high temperature oxidation resistance, adopt vacuum induction melting processing method, cast molding after melting, through the electrical heating alloys material of the final obtained required different diameter of forge hot, hot rolling, dynamic recrystallization treatment, cold rolling and cold-drawn.Steel in this composition range after cold rolling and cold-drawn after, at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gains lower than 10mg/cm
2, and its oxidation weight gain curve follows parabola rule.
Al adds with the form of pure Al, and Zr adds with the form of pure Zr, and Co adds with the form of pure Co, and Cr is added by the form of extra low carbon ferrochromium, and Y adds with the form of Fe-Y master alloy, and Nb adds with Fe-Nb alloy form.
Mechanism of the present invention is as described below: add the formation that appropriate Zr and Rare Earth Y can promote protective oxide film, significantly falls the weightening finish of low-alloyed isothermal oxidation, improves the resistance to flaking of oxide film, improve the antioxidant property of alloy under harsh service condition; And can crystal grain thinning, pinning crystal boundary, inhibiting grain growth, thus the speed slowing down the grain coarsening of Fe-Cr-Al electrical heating alloys high temperature, extend high temperature life.
The present invention compared with prior art has following beneficial effect:
The present invention improves the brittle ability of oxidation-resistance, high temperature life and anti-heating element by interpolation Zr and Rare Earth Y.The present invention relates to a kind of electrical heating alloys material with excellent high temperature oxidation resistance containing Zr and Rare Earth Y, not only overcome the high-temperature embrittlement of existing Fe-Cr-Al alloy, improve oxidation-resistance, and its heat resistance have also been obtained raising, resistance to high temperature corrosion ability strengthens, and has excellent over-all properties.Add the speed that certain Zr and Y can reduce the consumption of Fe-Cr-Al Aluminum in Alloy, improve high temperature oxidation resistance and hot strength, improve work-ing life.Electrical heating alloys material within the scope of present component after cold rolling and cold-drawn, at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gains lower than 10mg/cm
2, and its oxidation weight gain curve follows parabola rule.
Accompanying drawing explanation
Fig. 1 is that the electrical heating alloys of embodiment 1 and embodiment 2 in embodiment is at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gain curves.
Embodiment
Below by embodiment, and by reference to the accompanying drawings technical scheme of the present invention is described in further detail.
Embodiment 1:
In the present embodiment, adopt there is the composition of the electrical heating alloys material of excellent high temperature oxidation resistance and mass percent as follows:
Cr21.23%
Al6.03%
Co1.33%
Zr0.14%
Rare Earth Y 0.04%
Nb0.43%
Mn0.23%
Si0.18%
C0.016%
N0.015%
S0.008%
P0.009%
Fe surplus
Adopt vacuum induction melting, after comprehensive metering calculating and batching melting, cast molding, again through forge hot, hot rolling, dynamic recrystallization treatment, cold rolling and cold-drawn, the final obtained electrical heating alloys material with excellent high temperature oxidation resistance containing Zr and Rare Earth Y alloying element, it is about 6.98mg/cm at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gains
2, and its oxidation weight gain curve follows parabola rule.
Embodiment 2:
In the present embodiment, electrical heating alloys material does not comprise Zr and Rare Earth Y alloying element, and composition and the weight percent of electrical heating alloys material are as follows:
Cr21.34%
Al5.98%
Co1.41%
Nb0.48%
Mn0.21%
Si0.19%
C0.016%
N0.017%
S0.009%
P0.007%
Fe surplus
Adopt vacuum induction melting, after comprehensive metering calculating and batching melting, cast molding, again through forge hot, hot rolling, dynamic recrystallization treatment, cold rolling and cold-drawn, the final obtained electrical heating alloys material not containing Zr and Rare Earth Y alloying element, it is about 12.17mg/cm at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gains
2, its oxidation weight gain curve also follows parabola rule.
Shown in Figure 1, the electrical heating alloys not containing Zr and Rare Earth Y in embodiment 2 contains the oxidation weight gain of appropriate Zr and Rare Earth Y alloying element electrical heating alloys in the rear oxidation weightening finish in 360 hours of 1300 ° of C isothermal processes is higher than embodiment 1.
Embodiment 3:
In the present embodiment, adopt there is the composition of the electrical heating alloys material of excellent high temperature oxidation resistance and mass percent as follows:
Cr22.65%
Al5.68%
Co0.6%
Zr0.18%
Rare Earth Y 0.04%
Nb0.12%
Mn0.33%
Si0.18%
C0.029%
N0.015%
S0.008%
P0.009%
Fe surplus
Adopt vacuum induction melting, after comprehensive metering calculating and batching melting, cast molding, again through forge hot, hot rolling, dynamic recrystallization treatment, cold rolling and cold-drawn, the final obtained electrical heating alloys material with excellent high temperature oxidation resistance containing Zr and Rare Earth Y alloying element, it is about 7.39mg/cm at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gains
2, and its oxidation weight gain curve follows parabola rule.
Embodiment 4:
In the present embodiment, adopt there is the composition of the electrical heating alloys material of excellent high temperature oxidation resistance and mass percent as follows:
Cr23.45%
Al6.33%
Co2.4%
Zr0.23%
Rare Earth Y 0.04%
Nb0.96%
Mn0.46%
Si0.18%
C0.057%
N0.015%
S0.008%
P0.009%
Fe surplus
Adopt vacuum induction melting, after comprehensive metering calculating and batching melting, cast molding, again through forge hot, hot rolling, dynamic recrystallization treatment, cold rolling and cold-drawn, the final obtained electrical heating alloys material with excellent high temperature oxidation resistance containing Zr and Rare Earth Y alloying element, it is about 8.01mg/cm at 1300 ° of C isothermal oxidations, 360 hours oxidation weight gains
2, and its oxidation weight gain curve follows parabola rule.
The electrical heating alloys material that the present invention has an excellent high temperature oxidation resistance is obviously better than not adding the high temperature oxidation resistance of the electrical heating alloys material of Zr and Rare Earth Y element at 1250-1300 ° of C isothermal antioxidant property.Such electrical heating alloys material with excellent high temperature oxidation resistance containing Zr and Rare Earth Y can be used as the electrical heating element of working temperature at the sintering oven, heat treatment furnace etc. of 1000-1300 ° of C.
Embodiment is just for the ease of understanding technical scheme of the present invention; do not form limiting the scope of the invention; every do not depart from technical solution of the present invention interior perhaps above scheme is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong within scope.
Claims (4)
1. there is the electrical heating alloys material of excellent high temperature oxidation resistance, it is characterized in that: there is following composition and mass percent (%): C≤0.06, Cr:19.5-23.5, Al:5.5-6.5, N≤0.03, Si≤0.5, Mn≤0.5, P≤0.03, S≤0.03, Co:0.5-2.5, Nb:0.1-1.0, Zr:0.1-0.25, Y:0.02-0.2, surplus is Fe and inevitable impurity.
2. there is the electrical heating alloys material of excellent high temperature oxidation resistance according to claim 1, it is characterized in that: there is following composition and mass percent (%): 0.025 < C≤0.06, Cr:21.6-23.5, Al:5.5-6.5, N≤0.03, Si≤0.5,0.21 < Mn≤0.5, P≤0.03, S≤0.03, Co:0.5-2.5, Nb:0.1-1.0, Zr:0.16-0.25, Y:0.02-0.2, surplus is Fe and inevitable impurity.
3. there is the preparation method of the electrical heating alloys material of excellent high temperature oxidation resistance according to claim 1 or 2, it is characterized in that: adopt vacuum induction melting processing method, cast molding after melting, through the electrical heating alloys material of the final obtained required different diameter of forge hot, hot rolling, dynamic recrystallization treatment, cold rolling and cold-drawn.
4. there is the preparation method of the electrical heating alloys material of excellent high temperature oxidation resistance according to claim 3, it is characterized in that: Al adds with the form of pure Al, Zr adds with the form of pure Zr, Co adds with the form of pure Co, Cr is added by the form of extra low carbon ferrochromium, Y adds with the form of Fe-Y master alloy, and Nb adds with Fe-Nb alloy form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516555.6A CN105154776B (en) | 2015-08-21 | 2015-08-21 | Electrothermal alloy material with excellent high temperature oxidation resistance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516555.6A CN105154776B (en) | 2015-08-21 | 2015-08-21 | Electrothermal alloy material with excellent high temperature oxidation resistance and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105154776A true CN105154776A (en) | 2015-12-16 |
| CN105154776B CN105154776B (en) | 2017-08-25 |
Family
ID=54795813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510516555.6A Active CN105154776B (en) | 2015-08-21 | 2015-08-21 | Electrothermal alloy material with excellent high temperature oxidation resistance and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105154776B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350766A (en) * | 2016-08-27 | 2017-01-25 | 江苏金达电热电器有限公司 | Aluminized Ni-Cr alloy resistance wire and preparing method thereof |
| CN107454689A (en) * | 2017-07-29 | 2017-12-08 | 江苏华海冶金机械设备有限公司 | Anti-oxidant electrothermal radiation tube |
| CN109207870A (en) * | 2018-11-16 | 2019-01-15 | 陈万勤 | A kind of Fe-Cr-Al system alloy and its production method |
| CN113073234A (en) * | 2021-03-23 | 2021-07-06 | 成都先进金属材料产业技术研究院股份有限公司 | Nickel-chromium high-resistance electrothermal alloy and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243743A (en) * | 1989-03-17 | 1990-09-27 | Daido Steel Co Ltd | Material for durable heating wire |
| CN101892434A (en) * | 2010-06-12 | 2010-11-24 | 北京首钢吉泰安新材料有限公司 | Ultra-high temperature electrothermal alloy and preparation method thereof |
| CN102912238A (en) * | 2012-11-22 | 2013-02-06 | 丹阳兄弟合金有限公司 | Electrothermal alloy |
| CN103938102A (en) * | 2014-05-12 | 2014-07-23 | 盐城市鑫洋电热材料有限公司 | Preparation method of iron, chromium and aluminum multielement electrothermal alloy with high resistance |
| CN104726778A (en) * | 2015-03-25 | 2015-06-24 | 上海大学兴化特种不锈钢研究院 | Rare-earth La containing electrothermal alloy material having excellent high-temperature oxidation resistance |
-
2015
- 2015-08-21 CN CN201510516555.6A patent/CN105154776B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243743A (en) * | 1989-03-17 | 1990-09-27 | Daido Steel Co Ltd | Material for durable heating wire |
| CN101892434A (en) * | 2010-06-12 | 2010-11-24 | 北京首钢吉泰安新材料有限公司 | Ultra-high temperature electrothermal alloy and preparation method thereof |
| CN102912238A (en) * | 2012-11-22 | 2013-02-06 | 丹阳兄弟合金有限公司 | Electrothermal alloy |
| CN103938102A (en) * | 2014-05-12 | 2014-07-23 | 盐城市鑫洋电热材料有限公司 | Preparation method of iron, chromium and aluminum multielement electrothermal alloy with high resistance |
| CN104726778A (en) * | 2015-03-25 | 2015-06-24 | 上海大学兴化特种不锈钢研究院 | Rare-earth La containing electrothermal alloy material having excellent high-temperature oxidation resistance |
Non-Patent Citations (3)
| Title |
|---|
| 何开元: "《精密合金材料学》", 31 May 1991, 冶金工业出版社 * |
| 李喜桥等: "《加工工艺学》", 31 May 2009, 北京航空航天大学出版社 * |
| 汤忠义等: "《金属材料与热处理》", 31 August 2011, 北京理工大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350766A (en) * | 2016-08-27 | 2017-01-25 | 江苏金达电热电器有限公司 | Aluminized Ni-Cr alloy resistance wire and preparing method thereof |
| CN107454689A (en) * | 2017-07-29 | 2017-12-08 | 江苏华海冶金机械设备有限公司 | Anti-oxidant electrothermal radiation tube |
| CN109207870A (en) * | 2018-11-16 | 2019-01-15 | 陈万勤 | A kind of Fe-Cr-Al system alloy and its production method |
| CN113073234A (en) * | 2021-03-23 | 2021-07-06 | 成都先进金属材料产业技术研究院股份有限公司 | Nickel-chromium high-resistance electrothermal alloy and preparation method thereof |
| CN113073234B (en) * | 2021-03-23 | 2022-05-24 | 成都先进金属材料产业技术研究院股份有限公司 | Nickel-chromium high-resistance electrothermal alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105154776B (en) | 2017-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101892436B (en) | Fe-Ni-Cr-Al system electrothermal alloy and manufacturing method and application thereof | |
| CN105154776A (en) | Electric heating alloy material with excellent high-temperature oxidation resistance and preparing method for material | |
| CN104726778A (en) | Rare-earth La containing electrothermal alloy material having excellent high-temperature oxidation resistance | |
| CN103952594B (en) | A kind of preparation method of nickel chromium triangle system multi-element high-resistance electrothermal alloy | |
| CN102061406A (en) | Novel high-elasticity Cu-Ni-Mn alloy and preparation method thereof | |
| CN103938102A (en) | Preparation method of iron, chromium and aluminum multielement electrothermal alloy with high resistance | |
| CN103725972A (en) | Low-carbon multi-element high-resistance electrothermal alloy and preparation method thereof | |
| CN104357752A (en) | Alloy material for valve casting and processing process thereof | |
| CN111057937A (en) | Electrothermal alloy iron-chromium-aluminum wire material and preparation method thereof | |
| CN103173649A (en) | Anti-stress relaxation beryllium free copper alloy with high strength and high elasticity as well as preparation and processing methods thereof | |
| CN111118348A (en) | Preparation method of electrothermal alloy nickel-chromium wire | |
| CN107937814A (en) | A kind of preparation method of Aludirome | |
| CN111996397A (en) | Method for regulating hydrogen embrittlement resistance and corrosion resistance of CoNiV medium-entropy alloy | |
| CN103422030A (en) | High-chromium alloy for sintering pallet bar grate and manufacturing method of high-chromium alloy | |
| CN103436769B (en) | The wear-resistant Fe-Cr-B-Al casting alloy of a kind of high temperature | |
| CN103938032B (en) | A kind of nickel chromium triangle that improves is the electrothermal alloy method in service life | |
| CN112522545B (en) | Nickel-chromium high-resistance electrothermal alloy | |
| CN108866434A (en) | Novel acidproof heat-proof electrothermal alloy 0Cr21Al4ZrTi and preparation method | |
| CN104233103A (en) | Silicon-carbide-reinforced iron-chromium-aluminum electric heating composite material and preparation method thereof | |
| CN103938111A (en) | Method for reducing non-metallic inclusions in iron-chromium-aluminum electrothermal alloy | |
| CN104087786A (en) | Nickel-chromium electro-thermal composite material and preparation method thereof | |
| CN105039858A (en) | Electrothermal alloy material with excellent high-temperature resistant grain growth behavior and manufacturing method thereof | |
| CN105256203A (en) | Preparation method of aluminum alloy conductors | |
| CN101935805A (en) | Grate bar and preparation method thereof | |
| CN103866158A (en) | High temperature resistant Mn-Cu alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electrothermal alloy material with excellent high temperature oxidation resistance and its preparation method Effective date of registration: 20220302 Granted publication date: 20170825 Pledgee: Jiangsu Xinghua Rural Commercial Bank Co.,Ltd. Chengdong sub branch Pledgor: JIANGSU JINDA ELECTRICAL HEATING ELECTRICAL APPLIANCE CO.,LTD. Registration number: Y2022320000095 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |