CN102337426B - Ni-Al exothermic resistance alloy wire - Google Patents
Ni-Al exothermic resistance alloy wire Download PDFInfo
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- CN102337426B CN102337426B CN 201110335758 CN201110335758A CN102337426B CN 102337426 B CN102337426 B CN 102337426B CN 201110335758 CN201110335758 CN 201110335758 CN 201110335758 A CN201110335758 A CN 201110335758A CN 102337426 B CN102337426 B CN 102337426B
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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 Alloyapplication is in the production overheating protection and precisely control the overheating protective element of current overload, effectively prevent (motor, transformer ... etc.) because electric current is excessive, produce overheated.Because the 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 1200 ℃ of left and right, there is high hot strength, resistance to high temperature oxidation, heat and corrosion resistant performance while 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 generally used at present generally has two types, corresponding to different overheating protective element models, the first is the Ni-Si-Mn-Al alloy, the resistivity of 20 ℃ is 0.31 μ Ω .m, although the resistivity of this type of material meets above-mentioned requirements, but in the time of 1250 ℃, the life-span only has 30min, can't meet the standard of least life 1.5h; Another kind is the Ni-Si-Mn ternary alloy, and the resistivity of 20 ℃ is 0.23 μ Ω .m, and during 1200 ℃ of this material, there is 10h in the life-span, can't meet the standard of the desired least life 15h of this overheating protective element.
Summary of the invention
The purpose of this invention is to provide a kind of nickel aluminium heating resistor B alloy wire, described B alloy wire is in the situation that guarantee resistivity, and high temperature service life is improved significantly.
Described heating resistor B alloy wire material of the present invention is comprised 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 described 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 alloy, but alloy forms obvious intracrystalline strengthening, put forward heavy alloyed intensity, at high temperature the Ti element can stop grain fineness number to be grown up simultaneously, put forward heavy alloyed high-temperature stability, thereby reach the purpose that improves high temperature service life, simultaneously a small amount of Ti element add the alloy resistivity effects very little, hot workability that simultaneously also can alloy causes deterioration.
Embodiment
The proportioning of heating resistor B alloy wire 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 be protected (also can adopt intermediate frequency, electroslag melting); through forge hot,---hot rolling---drawing---annealing, obtain nickel aluminium heating resistor B alloy wire of the present invention.The concrete preparation method of described heating resistor material silk is as follows:
1) adopt the above-mentioned alloy of mode melting of vacuum induction melting or the remelting of employing Medium frequency+electric slag smelting, 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 to drawing after by forge hot, hot rolling, thermal treatment, then by 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
The finished product that the above embodiment of the present invention 1-3 material is made, the finished product that comparative example 1-2 material is made is done the mechanicl test of metal, and test-results is 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 made, the finished product that comparative example 1-2 material is made is done the mechanicl test of metal and can be found out, its tensile strength of finished product that embodiment 1-3 material is made increases, and the finished product that unit elongation and comparative example 1-2 material are made is basic identical.
The finished product that the above embodiment of the present invention 1-2 material is made, the finished product that comparative example 1 material is made is done 1250 ℃ of heating longevity tests of metal; The finished product that embodiment 3 materials are made, the finished product that comparative example 2 materials are made is done 1200 ℃ of heating longevity tests of metal.The condition of its test is: B alloy wire energising 2min, outage 2min, and iterative cycles, until the fracture of silk material, before fracture, the number of times * make-and-break time of silk material circulation is the life-span of heating wire, 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 |
As can be seen from Table 3, the embodiment of the present invention is compared with comparative example, and its heating life-span is improved significantly.
Conclusion: nickel aluminium heating resistor B alloy wire of the present invention, there is high hot strength, resistance to high temperature oxidation, heat and corrosion resistant performance during work, can meet the life requirements to material during use, good result of use is arranged.
Claims (3)
1. a nickel aluminium heating resistor B alloy wire material, it is characterized in that: described material is comprised 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 B 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 B alloy wire material according to claim 1, it 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 |
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| 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 |
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| CN102337426A CN102337426A (en) | 2012-02-01 |
| CN102337426B true CN102337426B (en) | 2013-12-25 |
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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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1867739A1 (en) * | 2006-05-16 | 2007-12-19 | Beru Aktiengesellschaft | Alloy based on nickel and its application for spark plug electrodes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512089B1 (en) * | 1971-04-26 | 1976-01-23 |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1867739A1 (en) * | 2006-05-16 | 2007-12-19 | Beru Aktiengesellschaft | Alloy based on nickel and its application for spark plug electrodes |
Non-Patent Citations (2)
| Title |
|---|
| JP昭51-2089B 1976.01.23 |
| 林肇琦.有色金属材料学.《有色金属材料学》.东北工业学院出版社,1986,第188页. * |
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| CN102337426A (en) | 2012-02-01 |
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