CN102337426A - Ni-Al exothermic resistance alloy wire - Google Patents
Ni-Al exothermic resistance alloy wire Download PDFInfo
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- CN102337426A CN102337426A CN2011103357587A CN201110335758A CN102337426A CN 102337426 A CN102337426 A CN 102337426A CN 2011103357587 A CN2011103357587 A CN 2011103357587A CN 201110335758 A CN201110335758 A CN 201110335758A CN 102337426 A CN102337426 A CN 102337426A
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- alloy
- alloy wire
- resistance alloy
- heating resistor
- nickel aluminium
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Abstract
The invention discloses a Ni-Al exothermic resistance alloy wire. The main components of the Ni-Al exothermic resistance alloy wire are Ni, Si, Mn, Al and Ti. The high-temperature life of the resistance alloy wire is obviously improved when the resistivity is guaranteed.
Description
Technical field
The present invention relates to a kind of resistive material, particularly a kind of nickel aluminium resistance alloy silk.
Background technology
Nickel aluminium heating resistor alloy is applied to the production overheating protection and the accurate overheating protection element of control current overload, prevent effectively (motor, X-former ... etc.) produce because of electric current is excessive overheated.Because electric heating apparatuss such as water dispenser, water-heater, sandwich bread baker, dishwasher, drying machine, sterilizing-cabinet, microwave oven, electric coffee pot, electric caldron, refrigerator, air-conditioning, gluing machine, office equipment, car seat heater are widely used.
Nickel aluminium heating resistor alloy working temperature is about 1200 ℃; Have high hot strength, resistance to high temperature oxidation, heat and corrosion resistant performance when requiring alloy material work, also possess the high reliability of good fatigue property, fracture toughness property, plasticity, structure stability, work etc. simultaneously.The nickel aluminium heating wire material that generally uses at present generally has two types; Corresponding to different overheating protection element models; First kind is the Ni-Si-Mn-Al alloy, and 20 ℃ resistivity is 0.31 μ Ω .m, though the resistivity of this type material satisfies above-mentioned requirements; But the life-span has only 30min in the time of 1250 ℃, can't satisfy the standard of least life 1.5h; Another kind is the Ni-Si-Mn ternary alloy, and 20 ℃ resistivity is 0.23 μ Ω .m, and there is 10h in the life-span during 1200 ℃ of this material, can't satisfy the standard of the desired least life 15h of this overheating protection element.
Summary of the invention
The purpose of this invention is to provide a kind of nickel aluminium heating resistor alloy silk, said alloy silk is under the situation that guarantees resistivity, and high temperature service life is improved significantly.
Said heating resistor alloy wire material of the present invention is made up of Ni, Si, Mn, Al, Ti, and the mass percentage content of each component is: Si:0.5～3.0%; Mn:0.5～3.0%; Al:0.5～2.5%; Ti:0.02～0.5%; Ni: surplus.
The present invention's technical scheme preferably is that the mass percentage content of described each component of material is: Si:2.6～2.8%; Mn:2.6～2.4%; Al:1.6～1.8%; Ti:0.05～0.15%; Ni: surplus.
The resistivity that said material is 20 ℃ is 0.25 μ Ω .m～0.35 μ Ω .m
Advantage of the present invention is:
After adding the Ti element in the alloy; Can form tangible intracrystalline to alloy and strengthen, improve the intensity of alloy, at high temperature the Ti element can stop grain fineness number to be grown up simultaneously; Improve the high-temperature stability of alloy; Thereby reach the purpose that improves high temperature service life, the adding of simultaneously a small amount of Ti element is very little to the alloy resistivity effects, also can not cause deterioration to the hot workability of alloy simultaneously.
Embodiment
The proportioning of heating resistor alloy silk constituent mass per-cent of the present invention is as shown in table 1; Material according to table 1 proportioning is smelted in vacuum induction furnace; Adopt argon gas to protect (also can adopt intermediate frequency, electroslag melting);--hot rolling--drawing---annealing promptly gets nickel aluminium heating resistor alloy silk according to the invention through forge hot.The concrete preparation method of said heating resistor material silk is following:
1) adopt vacuum induction melting perhaps to adopt the above-mentioned alloy of mode melting of intermediate frequency+esr, the adding of each element can adopt pure metal to add, and also can adopt the master alloy form to add.
2) above-mentioned alloy is carried out drawing after through forge hot, hot rolling, thermal treatment, again through thermal treatment repeatedly with pull to the silk material of required specification.
The composition (content) of table 1 nickel aluminium of the present invention heating resistor alloy material
With the finished product that the above embodiment of the present invention 1-3 material is processed, the finished product that comparative example 1-2 material is processed is done the mechanicl test of metal, test-results such as table 2:
| Performance | Tensile strength (MPa) | Unit elongation (%) |
| Embodiment 1 | ?553 | 34 |
| Embodiment 2 | ?543 | 33 |
| Embodiment 3 | ?524 | 34 |
| Comparative example 1 | ?524 | 32 |
| Comparative example 2 | ?423 | 30 |
The finished product that the above embodiment of the present invention 1-3 material is processed; The finished product that comparative example 1-2 material is processed is done the mechanicl test of metal and can be found out; Its tensile strength of finished product that embodiment 1-3 material is processed increases, and the finished product that unit elongation and comparative example 1-2 material are processed is basic identical.
With the finished product that the above embodiment of the present invention 1-2 material is processed, the finished product that comparative example 1 material is processed is done 1250 ℃ of heating longevity tests of metal; The finished product that embodiment 3 materials are processed, the finished product that comparative example 2 materials are processed are done 1200 ℃ of heating longevity tests of metal.The condition of its test is: alloy silk energising 2min, outage 2min, and circulation repeatedly, up to the fracture of silk material, silk material round-robin number of times * make-and-break time is the life-span of heating wire before the fracture, and its lifetime results is as shown in table 3.
Table 3 heating wire longevity test of the present invention
| Performance | The heating wire life-span (h) |
| Embodiment 1 | ?4.5 |
| Embodiment 2 | ?3.8 |
| Embodiment 3 | ?3.1 |
| Comparative example 1 | ?1.4 |
| Comparative example 2 | ?21 |
Can be found out that by table 3 embodiment of the invention is compared with comparative example, its heating life-span is improved significantly.
Conclusion: nickel aluminium heating resistor alloy silk according to the invention, have high hot strength, resistance to high temperature oxidation, heat and corrosion resistant performance during work, can satisfy life requirements during use to material, good result of use is arranged.
Claims (3)
1. nickel aluminium heating resistor alloy wire material, it is characterized in that: described material is made up of Ni, Si, Mn, Al, Ti, and the mass percentage content of each component is:
Si：0.5～3.0％；
Mn：0.5～3.0％；
Al：0.5～2.5％；
Ti：0.02～0.5％；
Ni: surplus.
2. nickel aluminium heating resistor alloy wire material according to claim 1 is characterized in that the mass percentage content of described each component of material is:
Si：2.6～2.8％；
Mn：2.6～2.4％；
Al：1.6～1.8％；
Ti：0.05～0.15％；
Ni: surplus.
3. nickel aluminium heating resistor alloy wire material according to claim 1 is characterized in that: the resistivity that described material is 20 ℃ is 0.25 μ Ω .m～0.35 μ Ω .m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110335758 CN102337426B (en) | 2011-10-29 | 2011-10-29 | Ni-Al exothermic resistance alloy wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110335758 CN102337426B (en) | 2011-10-29 | 2011-10-29 | Ni-Al exothermic resistance alloy wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102337426A true CN102337426A (en) | 2012-02-01 |
| CN102337426B CN102337426B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110335758 Active CN102337426B (en) | 2011-10-29 | 2011-10-29 | Ni-Al exothermic resistance alloy wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342618A (en) * | 2018-05-25 | 2018-07-31 | 江苏湃特瑞电器有限公司 | A kind of electric resistance alloy silk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512089B1 (en) * | 1971-04-26 | 1976-01-23 | ||
| EP1867739A1 (en) * | 2006-05-16 | 2007-12-19 | Beru Aktiengesellschaft | Alloy based on nickel and its application for spark plug electrodes |
-
2011
- 2011-10-29 CN CN 201110335758 patent/CN102337426B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512089B1 (en) * | 1971-04-26 | 1976-01-23 | ||
| EP1867739A1 (en) * | 2006-05-16 | 2007-12-19 | Beru Aktiengesellschaft | Alloy based on nickel and its application for spark plug electrodes |
Non-Patent Citations (1)
| Title |
|---|
| 林肇琦: "《有色金属材料学》", 31 July 1986, 东北工业学院出版社, article "有色金属材料学", pages: 188 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342618A (en) * | 2018-05-25 | 2018-07-31 | 江苏湃特瑞电器有限公司 | A kind of electric resistance alloy silk |
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| CN102337426B (en) | 2013-12-25 |
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