CN104637640A - Processing technology of iron-chromium-aluminum resistance wire - Google Patents
Processing technology of iron-chromium-aluminum resistance wire Download PDFInfo
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- CN104637640A CN104637640A CN201310544405.7A CN201310544405A CN104637640A CN 104637640 A CN104637640 A CN 104637640A CN 201310544405 A CN201310544405 A CN 201310544405A CN 104637640 A CN104637640 A CN 104637640A
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Abstract
The invention discloses a processing technology of an iron-chromium-aluminum resistance wire, and relates to the metal processing field; the processing technology includes five technology steps of raw material selection, heating melting, casting molding, cold drawing and annealing treatment; iron, chromium, aluminum, rhenium, molybdenum and the like are selected as processing raw materials, can improve a highest use temperature of the iron-chromium-aluminum resistance wire and increases the service life; the raw materials are powdery so as to facilitate uniform mixing; the raw materials are put into an induction furnace and subjected to heating melting, the heating speed is fast, the production efficiency is high, the material utilization rate can be improved, and production costs are saved; after the resistance wire is subjected to annealing treatment in an electric furnace, the tensile strength of the resistance wire can be enhanced, and the mechanical properties are improved.
Description
Technical field
The present invention relates to metal processing sectors, be specifically related to a kind of processing technology of Kanthal wire.
Background technology
Along with the development of China's industry, electrified degree improves constantly, resistance wire is as components and parts requisite in circuit, purposes is broad, of a great variety, the optimization of its processing technology and innovation, always by people are inquired into, from the prior art, all can not solve and how enhance productivity, save production cost, how to strengthen the tensile strength of resistance wire, how to promote the problem of the maximum operation (service) temperature of resistance wire.
Summary of the invention
For overcoming the deficiency in prior art, the object of the invention is to provide a kind of processing technology of Kanthal wire.
For realizing object of the present invention, technical scheme of the present invention is as follows:
A processing technology for Kanthal wire, described processing technology comprises the steps:
(1) raw material is chosen: choose pulverous iron, chromium, aluminium, rhenium, molybdenum etc. as processing raw material, in described raw material, the ratio of iron is 75.9%-80.6%, and the ratio of chromium is 12.5%-15.0%, and the ratio of aluminium is 4.6%-6.0%, the ratio of rhenium is 0.5%-0.8%, and surplus is molybdenum.
(2) add hot smelting: select magnesia crucible, first add raw material and stir, then put it in induction furnace and add hot smelting, obtain metallic solution, described heating-up temperature is 1520 DEG C-1650 DEG C.
(3) cast molding: be cast in resistance wire copper mold by gained in (2), and cooling forming under vacuum conditions, obtain resistance wire blank.
(4) cold-drawn is long: under the environment of 20 DEG C-25 DEG C, resistance wire blank is carried out pulling process, obtains the resistance wire that diameter is 2.0mm-4.5mm.
(5) annealing in process: by gained annealing in process in electric furnace in (4), described annealing temperature is 283 DEG C-350 DEG C.
Preferably, described induction furnace is intermediate frequency furnace.
Preferably, the temperature of described resistance wire copper mold is 100 DEG C-150 DEG C.
Preferably, described electric furnace is bench vehicle type electrical resistance furnace.
Beneficial effect of the present invention: in the course of processing of Kanthal wire, choose iron, chromium, aluminium, rhenium, molybdenums etc. are as processing raw material, the maximum operation (service) temperature of Kanthal wire can be promoted, increase its useful life, raw material is mix Powdered being conducive to, raw material is put into induction furnace and adds hot smelting, firing rate is fast, production efficiency is high, the utilance of material can be promoted, save production cost, metallic solution is cast in resistance wire copper mold, and cooling forming under vacuum conditions, copper mold is reusable, production cost can be reduced, cooling forming under vacuum conditions, Kanthal wire can not be made oxidized, long to the cold-drawn of resistance wire blank, the resistance wire precision obtained is high, surface smoothness is good, by resistance wire annealing in process in electric furnace, the tensile strength of resistance wire can be strengthened, improve its mechanical property.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
embodiment 1:
A processing technology for Kanthal wire, described processing technology comprises the steps:
(1) raw material is chosen: choose pulverous iron, chromium, aluminium, rhenium, molybdenum etc. as processing raw material, the maximum operation (service) temperature of Kanthal wire can be promoted, increase its useful life, raw material is mix Powdered being conducive to, in described raw material, the ratio of iron is 75.9%, and the ratio of chromium is 12.5%, and the ratio of aluminium is 4.6%, the ratio of rhenium is 0.5%, and surplus is molybdenum.
(2) add hot smelting: select magnesia crucible, first add raw material and stir, then put it in intermediate frequency furnace and add hot smelting, obtain metallic solution, firing rate is fast, and production efficiency is high, can promote the utilance of material, save production cost, described heating-up temperature is 1520 DEG C.
(3) cast molding: it is in 100 DEG C of resistance wire copper molds that gained in (2) is cast to temperature, and cooling forming under vacuum conditions, obtain resistance wire blank, copper mold is reusable, can production cost be reduced, under vacuum conditions cooling forming, Kanthal wire can not be made oxidized.
(4) cold-drawn is long: under the environment of 20 DEG C, and resistance wire blank is carried out pulling process, obtain the resistance wire that diameter is 2.0mm, resistance wire precision is high, surface smoothness good.
(5) annealing in process: by gained annealing in process in bench vehicle type electrical resistance furnace in (4), described annealing temperature is 283 DEG C, can strengthen the tensile strength of resistance wire, improves its mechanical property.
embodiment 2:
All the other are identical with embodiment 1, difference is, in described step (1), in described raw material, the ratio of iron is 80.6%, the ratio of chromium is 15.0%, and the ratio of aluminium is 6.0%, and the ratio of rhenium is 0.8%, surplus is molybdenum, in described step (2), described heating-up temperature is 1650 DEG C, in described step (3), the temperature of described resistance wire copper mold is 150 DEG C, in described step (4), described temperature is 25 DEG C, and the diameter of described resistance wire is 4.5mm, in described step (5), described annealing temperature is 350 DEG C.
embodiment 3:
All the other are identical with embodiment 1, difference is, in described step (1), in described raw material, the ratio of iron is 79.6%, the ratio of chromium is 14.5%, and the ratio of aluminium is 5.8%, and the ratio of rhenium is 0.7%, surplus is molybdenum, in described step (2), described heating-up temperature is 1630 DEG C, in described step (3), the temperature of described resistance wire copper mold is 120 DEG C, in described step (4), described temperature is 22 DEG C, and the diameter of described resistance wire is 3.5mm, in described step (5), described annealing temperature is 300 DEG C.
After above-mentioned PROCESS FOR TREATMENT, take out sample respectively, measurement result is as follows:
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Standard high-class product |
| Tensile strength | 750Mpa | 735Mpa | 733Mpa | 730Mpa |
| Hardness | 248HB | 245HB | 255HB | 240HB |
| Maximum operation (service) temperature | 1420℃ | 1410℃ | 1400℃ | 1400℃ |
Known through practical application, in the course of processing of Kanthal wire, choose iron, chromium, aluminium, rhenium, molybdenums etc. are as processing raw material, the maximum operation (service) temperature of Kanthal wire can be promoted, increase its useful life, raw material is mix Powdered being conducive to, raw material is put into induction furnace and adds hot smelting, firing rate is fast, production efficiency is high, the utilance of material can be promoted, save production cost, metallic solution is cast in resistance wire copper mold, and cooling forming under vacuum conditions, copper mold is reusable, production cost can be reduced, cooling forming under vacuum conditions, Kanthal wire can not be made oxidized, long to the cold-drawn of resistance wire blank, the resistance wire precision obtained is high, surface smoothness is good, by resistance wire annealing in process in electric furnace, the tensile strength of resistance wire can be strengthened, improve its mechanical property.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a processing technology for Kanthal wire, is characterized in that, described processing technology comprises the steps:
Raw material is chosen: choose pulverous iron, chromium, aluminium, rhenium, molybdenum etc. as processing raw material, in described raw material, the ratio of iron is 75.9%-80.6%, and the ratio of chromium is 12.5%-15.0%, and the ratio of aluminium is 4.6%-6.0%, the ratio of rhenium is 0.5%-0.8%, and surplus is molybdenum;
Add hot smelting: select magnesia crucible, first add raw material and stir, then put it in induction furnace and add hot smelting, obtain metallic solution, described heating-up temperature is 1520 DEG C-1650 DEG C;
Cast molding: be cast in resistance wire copper mold by gained in (2), and cooling forming under vacuum conditions, obtain resistance wire blank;
Cold-drawn is long: under the environment of 20 DEG C-25 DEG C, resistance wire blank is carried out pulling process, obtains the resistance wire that diameter is 2.0mm-4.5mm;
Annealing in process: by gained annealing in process in electric furnace in (4), described annealing temperature is 283 DEG C-350 DEG C.
2. will impose the processing technology of a kind of Kanthal wire described in 1 according to right, it is characterized in that, in described step (2), described induction furnace is intermediate frequency furnace.
3. will impose the processing technology of a kind of Kanthal wire described in 1 according to right, it is characterized in that, in described step (3), the temperature of described resistance wire copper mold is 100 DEG C-150 DEG C.
4. will impose the processing technology of a kind of Kanthal wire described in 1 according to right, it is characterized in that, in described step (4), described electric furnace is bench vehicle type electrical resistance furnace.
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| CN201310544405.7A CN104637640A (en) | 2013-11-07 | 2013-11-07 | Processing technology of iron-chromium-aluminum resistance wire |
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| CN201310544405.7A CN104637640A (en) | 2013-11-07 | 2013-11-07 | Processing technology of iron-chromium-aluminum resistance wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294158A (en) * | 2014-09-19 | 2015-01-21 | 中山市鸿程科研技术服务有限公司 | Processing process of iron-chromium-aluminum resistance wire |
| CN106298126A (en) * | 2016-08-01 | 2017-01-04 | 安徽贝莱电子科技有限公司 | A kind of resistance wire manufacturing process |
| CN107805688A (en) * | 2017-11-03 | 2018-03-16 | 北京首钢吉泰安新材料有限公司 | A kind of method for controlling Aludirome filament rice resistance fluctuation scope |
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| CN1122839A (en) * | 1994-11-11 | 1996-05-22 | 冶金工业部包头稀土研究院 | Process for producing high rare earth content, Cr-Al-rare earth metal-Fe alloy |
| CN1537177A (en) * | 2001-04-26 | 2004-10-13 | ��ɭ��³�յ¹����Ͻ�����������˾ | Iron-chrome-aluminium-alloy |
| CN101892436A (en) * | 2009-05-19 | 2010-11-24 | 朱耀霄 | Fe-Ni-Cr-Al system electrothermal alloy and manufacturing method and application thereof |
| CN102586699A (en) * | 2011-01-07 | 2012-07-18 | 朱士章 | Proportioning method for multi-element alloy high temperature resistance wire |
| CN102693793A (en) * | 2012-06-04 | 2012-09-26 | 惠州市富济电子材料有限公司 | Heating resistant material, ceramic heating component provided with same, and preparing and application |
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2013
- 2013-11-07 CN CN201310544405.7A patent/CN104637640A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1122839A (en) * | 1994-11-11 | 1996-05-22 | 冶金工业部包头稀土研究院 | Process for producing high rare earth content, Cr-Al-rare earth metal-Fe alloy |
| CN1537177A (en) * | 2001-04-26 | 2004-10-13 | ��ɭ��³�յ¹����Ͻ�����������˾ | Iron-chrome-aluminium-alloy |
| CN101892436A (en) * | 2009-05-19 | 2010-11-24 | 朱耀霄 | Fe-Ni-Cr-Al system electrothermal alloy and manufacturing method and application thereof |
| CN102586699A (en) * | 2011-01-07 | 2012-07-18 | 朱士章 | Proportioning method for multi-element alloy high temperature resistance wire |
| CN102693793A (en) * | 2012-06-04 | 2012-09-26 | 惠州市富济电子材料有限公司 | Heating resistant material, ceramic heating component provided with same, and preparing and application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294158A (en) * | 2014-09-19 | 2015-01-21 | 中山市鸿程科研技术服务有限公司 | Processing process of iron-chromium-aluminum resistance wire |
| CN106298126A (en) * | 2016-08-01 | 2017-01-04 | 安徽贝莱电子科技有限公司 | A kind of resistance wire manufacturing process |
| CN107805688A (en) * | 2017-11-03 | 2018-03-16 | 北京首钢吉泰安新材料有限公司 | A kind of method for controlling Aludirome filament rice resistance fluctuation scope |
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Application publication date: 20150520 |