CN104561844A - Method for preparing iron-chromium-aluminum alloy metal fibers - Google Patents
Method for preparing iron-chromium-aluminum alloy metal fibers Download PDFInfo
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- CN104561844A CN104561844A CN201310513965.6A CN201310513965A CN104561844A CN 104561844 A CN104561844 A CN 104561844A CN 201310513965 A CN201310513965 A CN 201310513965A CN 104561844 A CN104561844 A CN 104561844A
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Abstract
The invention discloses a method for preparing iron-chromium-aluminum alloy metal fibers and relates to the field of processing and manufacturing of iron-chromium-aluminum alloys. The method comprises the following four craft processes: preparing a blank, preparing a metal complex, heat treatment and preparing iron-chromium-aluminum metal fiber bundles. A bundle-drawing method is adopted in the preparation method to prepare iron-chromium-aluminum metal fibers, the preparation process is simple, the production efficiency is high, automation and mass production are easy to achieve, vacuum heat treatment furnace equipment is adopted in the heat treatment process, the temperature and heat preservation duration of the heat treatment are strictly controlled, so that the breaking strength of a single fiber of the prepared iron-chromium-aluminum metal fibers is high, the tensile property is improved, and the costs of the equipment and the raw materials used in the preparation process are lower, thereby having an obvious cost advantage and good process stability.
Description
Technical field
The present invention relates to Aludirome processing and manufacturing field, be specifically related to a kind of preparation method of Aludirome steel fiber.
Background technology
Aludirome is a kind of important electrical heating alloys, owing to there is a large amount of Cr in composition, A1, when high temperature, alloy table and can form fine and close oxide film, extends the work-ing life of alloy material, the high resistivity that can also improve of A1 content, electric energy conversion can be heat energy by high resistivity effectively, saves thermo electric material.Cost ratio nickel chromium triangle system electrical heating alloys, the stainless steel system alloy material cheap 20% ~ 30% of Aludirome material simultaneously, therefore, this excellent high-temperature oxidation resistance of Aludirome material and high resistivity and cheap price provide condition for it uses in a large number, application number is that CN97104028.1 discloses a kind of Aludirome and manufacture method thereof, the chemical composition proportioning (% by weight) of the Aludirome described in this invention: Cr10 ~ 30%, A1 3 ~ 7%, Al
2o
30.1 ~ 2%, remaining is FeO, first its manufacture method adopts powder metallurgy process to prepare Aludirome blank, and then be processed into goods, powder metallurgy process is prepared Aludirome blank and is comprised powder process, mechanical alloying, shaping and sintering circuit, the Aludirome goods prepared by the present invention are adopted to have antioxidant property and the processing characteristics of higher hot strength and Geng Gao, thus use temperature is high, life-span is long, but Aludirome breaking tenacity prepared by this invention is not high, the course of processing is comparatively complicated, and cost is high.
Summary of the invention
It is high that problem to be solved by this invention is to provide a kind of single wire fracture intensity, and the course of processing is simple, the preparation method of Aludirome steel fiber with low cost.
To achieve these goals, the technical scheme that the present invention takes is: a kind of preparation method of Aludirome steel fiber, comprises following processing step:
(1) preparation of stock: select diameter be the Aludirome steel wire of 0.5 ~ 0.7mm as stock, and at surface application one deck copper separant of stock;
(2) composite metal is prepared: 1000, wire in preparation step (1) after copper coated separant, then forms composite metal by integrated for wire a branch of loading Low Carbon Steel Pipe;
(3) thermal treatment: a branch of composite metal casement integrated in step (2) is repeatedly stretched and heat-treated, and heat treated temperature controls at 500 ~ 700 DEG C, and is incubated 15 ~ 55min;
(4) preparation of iron-chromium-aluminum metal fiber bundle: composite metal is after being repeatedly stretched to diameter and being 25 μm in step (3), adopts fractionation to remove copper sealing coat and steel pipe obtains 22 μm of iron-chromium-aluminum metal fiber bundles.
Preferably, in described step (1), the chemical composition proportioning (% by weight) of Aludirome stock is Al 5.4, Cr 20.35, Cu 0.04, Mn 0.17, Si 0.26, Ti 0.03, La 0.01, Ce 0.01, C 0.03, S 0.001, and remaining is Fe.
Preferably, the equipment that in described step (2), coating process adopts is high pressure airless spray equipment.
Preferably, the equipment that in described step (3), heat treatment process adopts is vacuum heat treatment furnace.
Preferably, the concrete operation method of the fractionation in described step (4) is composite metal is put into the nitric acid pond that concentration is 23%, after reaction 20min, cleans with clear water.
Adopt technical scheme of the present invention, this kind of preparation method adopts clustered drawing to prepare iron-chromium-aluminum metal fiber, preparation process is simple, production efficiency is high, easily be automated and produce in enormous quantities, described heat treatment process, adopt vacuum heat treatment furnace apparatus, by strictly controlling heat treated temperature and soaking time, the iron-chromium-aluminum metal fiber single wire fracture intensity prepared is high, add its tensile property, and the equipment adopted in preparation process and raw materials cost are all comparatively cheap, there is obvious cost advantage, technology stability is good, the equipment that coating process adopts is high pressure airless spray equipment, the layers of copper on stock surface is evenly distributed, spraying effect is good, in described fractionation, the clearance of the copper separant of metal composite surface is high, obtained steel fiber bundle surface quality is good.
Embodiment
embodiment 1:
(1) preparation of stock: select diameter be the Aludirome steel wire of 0.5mm as stock, and with the surface application one deck copper separant of high pressure airless spray equipment at stock, the chemical composition proportioning (% by weight) of described Aludirome stock is Al 5.4, Cr 20.35, Cu 0.04, Mn 0.17, Si 0.26, Ti 0.03, La 0.01, Ce 0.01, C 0.03, S 0.001, remaining is Fe;
(2) composite metal is prepared: 1000, wire in preparation step (1) after copper coated separant, then forms composite metal by integrated for wire a branch of loading Low Carbon Steel Pipe;
(3) thermal treatment: repeatedly stretched and put into vacuum heat treatment furnace by a branch of composite metal casement integrated in step (2) and heat-treat, controlling heat treated temperature is 552 DEG C, and is incubated 20min;
(4) preparation of iron-chromium-aluminum metal fiber bundle: treat that in step (3), composite metal is 25 μm through being repeatedly stretched to diameter, composite metal is put into the nitric acid pond that concentration is 23%, after reaction 20min, clean with clear water, just can remove copper sealing coat and steel pipe obtains 22 μm of iron-chromium-aluminum metal fiber bundles.
embodiment 2:all the other are identical with embodiment 1, and difference is that, in described step (1), the Aludirome gauge of wire selected is 0.6mm; In described step (3), controlling heat treated temperature is 620 DEG C, and is incubated 22min.
embodiment 3:all the other are identical with embodiment 1, and difference is that, in described step (1), the Aludirome gauge of wire selected is 0.7mm; In described step (3), controlling heat treated temperature is 568 DEG C, and is incubated 28min.
After above processing step, take out iron-chromium-aluminum metal fiber bundle sample, to be measured:
| Sequence number | Single wire fracture intensity/N | Oxidation-resistance | Surface quality | Maximum operating temperature/DEG C | Qualification rate/% |
| Embodiment 1 | 0.6 | Excellent | Good | 1480 | 98 |
| Embodiment 2 | 0.7 | Excellent | Good | 1479 | 97 |
| Embodiment 3 | 0.8 | Excellent | Good | 1482 | 98 |
From above data, the iron-chromium-aluminum metal fiber bundle single wire fracture intensity prepared reaches more than 0.6N, and intensity is high, oxidation-resistance is excellent, and show that quality is good, maximum operating temperature reaches more than 1400 DEG C, high thermal resistance is good, and qualification rate is also very high, and technology stability is good.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (5)
1. a preparation method for Aludirome steel fiber, comprises following processing step:
(1) preparation of stock: select diameter be the Aludirome steel wire of 0.5mm as stock, and at surface application one deck copper separant of stock;
(2) composite metal is prepared: 1000, wire in preparation step (1) after copper coated separant, then forms composite metal by integrated for wire a branch of loading Low Carbon Steel Pipe;
(3) thermal treatment: a branch of composite metal casement integrated in step (2) is repeatedly stretched and heat-treated, and heat treated temperature controls at 500 ~ 700 DEG C, and is incubated 15 ~ 55min;
(4) preparation of iron-chromium-aluminum metal fiber bundle: composite metal is after being repeatedly stretched to diameter and being 25 μm in step (3), adopts fractionation to remove copper sealing coat and steel pipe obtains 22 μm of iron-chromium-aluminum metal fiber bundles.
2. the preparation method of a kind of Aludirome steel fiber according to claim 1, it is characterized in that: in described step (1), the chemical composition proportioning (% by weight) of Aludirome stock is Al 5.4, Cr 20.35, Cu 0.04, Mn 0.17, Si 0.26, Ti 0.03, La 0.01, Ce 0.01, C 0.03, S 0.001, remaining is Fe.
3. the preparation method of a kind of Aludirome steel fiber according to claim 1, is characterized in that: the equipment that in described step (2), coating process adopts is high pressure airless spray equipment.
4. the preparation method of a kind of Aludirome steel fiber according to claim 1, is characterized in that: the equipment that in described step (3), heat treatment process adopts is vacuum heat treatment furnace.
5. the preparation method of a kind of Aludirome steel fiber according to claim 1, it is characterized in that: the concrete operation method of the fractionation in described step (4) is composite metal is put into the nitric acid pond that concentration is 23%, after reaction 20min, clean with clear water.
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| CN201310513965.6A CN104561844A (en) | 2013-10-28 | 2013-10-28 | Method for preparing iron-chromium-aluminum alloy metal fibers |
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| CN201310513965.6A CN104561844A (en) | 2013-10-28 | 2013-10-28 | Method for preparing iron-chromium-aluminum alloy metal fibers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106811586A (en) * | 2015-12-01 | 2017-06-09 | 河北小蜜蜂工具集团有限公司 | A kind of manufacture method of dilval metallic fiber |
Citations (6)
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| EP0899365A2 (en) * | 1997-09-01 | 1999-03-03 | Bridgestone Metalpha Corporation | Titanium fiber and method of producing the same |
| CN1900345A (en) * | 2006-07-21 | 2007-01-24 | 周建华 | Metal fiber wire and its producing process |
| JP2008125813A (en) * | 2006-11-21 | 2008-06-05 | National Institute Of Advanced Industrial & Technology | Biosensor cartridge and biosensor device |
| CN101220449A (en) * | 2008-01-25 | 2008-07-16 | 湖南惠同新材料股份有限公司 | Fire resistant iron chromium aluminum filament and production technique |
| CN101671793A (en) * | 2008-09-12 | 2010-03-17 | 潘琰静 | Iron-chromium-aluminum filament |
| CN102477577A (en) * | 2010-11-22 | 2012-05-30 | 湖南汇博金属材料有限责任公司 | Preparation process for metal fibers |
-
2013
- 2013-10-28 CN CN201310513965.6A patent/CN104561844A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0899365A2 (en) * | 1997-09-01 | 1999-03-03 | Bridgestone Metalpha Corporation | Titanium fiber and method of producing the same |
| CN1900345A (en) * | 2006-07-21 | 2007-01-24 | 周建华 | Metal fiber wire and its producing process |
| JP2008125813A (en) * | 2006-11-21 | 2008-06-05 | National Institute Of Advanced Industrial & Technology | Biosensor cartridge and biosensor device |
| CN101220449A (en) * | 2008-01-25 | 2008-07-16 | 湖南惠同新材料股份有限公司 | Fire resistant iron chromium aluminum filament and production technique |
| CN101671793A (en) * | 2008-09-12 | 2010-03-17 | 潘琰静 | Iron-chromium-aluminum filament |
| CN102477577A (en) * | 2010-11-22 | 2012-05-30 | 湖南汇博金属材料有限责任公司 | Preparation process for metal fibers |
Non-Patent Citations (1)
| Title |
|---|
| 杨照玲等: "铁铬铝金属纤维的制备与性能", 《稀有金属材料与工程》, vol. 37, no. 9, 30 September 2008 (2008-09-30), pages 1684 - 1687 * |
Cited By (1)
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|---|---|---|---|---|
| CN106811586A (en) * | 2015-12-01 | 2017-06-09 | 河北小蜜蜂工具集团有限公司 | A kind of manufacture method of dilval metallic fiber |
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Application publication date: 20150429 |