CN1041116C - Iron-nickel-copper series new-type thermal magnetic alloy - Google Patents
Iron-nickel-copper series new-type thermal magnetic alloy Download PDFInfo
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- CN1041116C CN1041116C CN94120001A CN94120001A CN1041116C CN 1041116 C CN1041116 C CN 1041116C CN 94120001 A CN94120001 A CN 94120001A CN 94120001 A CN94120001 A CN 94120001A CN 1041116 C CN1041116 C CN 1041116C
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Abstract
The present invention relates to an iron-nickel-copper series novel thermomagnetic alloy using cheap Cu to replace expensive Ni in the Fe-Ni and Fe-Ni-Cr series thermomagnetic alloy. The content of Cu in the alloy is from 0.5 to 15%, the content of Ni is from 24 to 36%, and 0.3 to 5% of alloy elements, such as Mn, Cr, Mo, Nb, etc., can also be added. The addition of the alloy elements can adjust the Curie point of the alloy, improve the shape of thermomagnetic characteristic curves and stabilize the phase structure of austenite. Compared with the Fe-Ni or Fe-Ni-Cr type thermomagnetic alloy which is frequently used and has equivalent thermomagnetic properties, the new alloy has good processing performance, high corrosion resistance and great cost reduction of prepared raw materials.
Description
The invention belongs to Precise Alloy, is a kind of novel thermo-magnetic alloy specifically.
Thermo-magnetic alloy is one of series of products of soft magnetic materials in the Precise Alloy, and it has in operating ambient temperature range, and the magnetic induction density of material varies with temperature and characteristic jumpy.Be usually used in manufacturing all temps control device, device and pyromagnetic coupled apparatus etc. are repaid in the magnetic temperature compensation.Fe-Ni is that alloy and Fe-Ni-Cr are that alloy is two kinds of thermo-magnetic alloy materials using always, its Ni content is 30%～40%, when adopting the lower Fe-30%Ni of Ni content to make thermo-magnetic alloy, when working temperature is low, be prone to the higher ferrite α phase of Curie temperature, cause the reversibility of thermo-magnetic characteristics to degenerate, in addition this alloy Curie-point temperature lower (about 110 ℃), can not be implemented in and adjust Curie temperature in the wide temperature range, be difficult to satisfy the needs of all kinds of pyromagnetic devices; If when adopting ni content higher (as containing Ni38%) to make thermo-magnetic alloy, then need add the shape that a large amount of Cr adjust Curie temperature and thermo-magnetic characteristics curve, cause alloy material to prepare expense and increase, this moment, alloy system was a thermo-magnetic alloy for Fe-Ni-Cr in fact.At present, a large amount of a kind of thermo-magnetic alloy material FeNi38Cr7Mo that use on the electric cooker thermostat are exactly to pass through to add metallic element Cr on the Fe-38%Ni basis, and Mo etc. reduce Curie temperature and adjust thermo-magnetic characteristics, to be suitable for electric cooker temperature control requirement on devices.When this alloy prepares with Fe, Ni, Cr, the Mo starting material finally are processed into components and parts through smelting, forging, hot rolling, annealing, pickling, cold rolling one-tenth band or cold-drawn Cheng Sicai, annealing or unannealed state under use.This alloy has good processing properties, and by cold working and annealing or unannealed processing, Curie temperature can be adjusted in 140～170 ℃ of scopes, is suitable for making thermo-magnetic alloy element in the thermostat that electric cooker thermostat and other require similar Curie's point value.But because this alloy contains the more expensive Ni of price, Cr, Mo makes to be unfavorable for the large-scale popularization use by the production cost height.
The objective of the invention is: provide a kind of thermo-magnetic characteristics, erosion resistance suitable with thermo-magnetic alloy material at present commonly used, but cheap novel thermo-magnetic alloy material.
It is that Fe and ni content are to add 0.5～15% metal Cu in 24%～36% the Fe-Ni alloy that the present invention is achieved in that at principal element, change the method for Fe-Ni alloy lattice constant by Cu, adjust the alloy Curie temperature and, improve the thermo-magnetic characteristics reversibility by Cu stable alloy austenite phase structure.Can also in this type of alloy, add 0.3～5% metal M n, by Mn stable alloy austenite phase structure and improve thermo-magnetic characteristics, also can continue to add again content and be respectively 0.3～5% Cr, Mo, Nb, the adding of these alloying elements all can play a part to adjust Curie temperature or improve the thermo-magnetic characteristics curve shape in alloy.When new alloy prepares, with above-mentioned Fe, Ni, metals such as Cu use under annealing or unannealed state through batching → smelting → forging → hot rolling → annealing → pickling → reconditioning → cold rolling one-tenth band or cold drawing Cheng Sicai → make components and parts.FeNiCu is that the prime advantage of novel thermo-magnetic alloy is: obtaining under the prerequisite of identical thermo-magnetic characteristics, the preparation new alloy has significantly reduction than the cost of raw and processed materials of preparation Fe-Ni type and Fe-Ni-Cr type traditional hot magnetic alloy.
It is one embodiment of the present of invention below: the preparation of FeNi29Cu8.5Mn3 thermo-magnetic alloy material of electric cooker thermostat.
With technically pure iron, 1. No. 1. electrolytic coppers of number electrolysis Ni. and JMn97 make raw material, raw material weighs 20 kilograms altogether, proportion scale is Fe: Ni: Cu: Mn=58: 29.5: 9: 3.5, in 25 kilograms of vacuum induction furnaces, smelt and casting ingot-forming, then through 1150 ℃ of heats forged and be rolled into the made-up belt of 4.0 * 140mm, made-up belt is through 900 ℃ of annealing, cold rolling one-tenth 1.0 * 140mm band after pickling and the reconditioning, and the band punching out becomes the electric cooker thermostat with pyromagnetic element and through annealing back use in 750 ℃ * 30 minutes.This new alloy and FeNi38Cr7Mo alloy phase ratio, the former processing characteristics is better, and both thermo-magnetic characteristics and corrosion stability are suitable, and in the mill, the new alloy cost of raw and processed materials can reduce by 27%.
Fig. 1 is the comparison diagram of both thermo-magnetic characteristics curves under the operating ambient temperature.
Annotate: ordinate during for test with the corresponding test coil output of a magnetic induction density B millivolt number; Abscissa is the probe temperature value.
Claims (3)
1, iron-nickel-copper series new-type thermal magnetic alloy is characterized in that, contain Ni24-36%, Cu0.5-1.5%, Fe all the other.
2, according to the described thermo-magnetic alloy of claim 1, it is characterized in that, also contain Mn0.3-0.5%.
3, according to claim 1,2 described thermo-magnetic alloys, it is characterized in that, also contain Nb0.3-5.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94120001A CN1041116C (en) | 1994-12-27 | 1994-12-27 | Iron-nickel-copper series new-type thermal magnetic alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94120001A CN1041116C (en) | 1994-12-27 | 1994-12-27 | Iron-nickel-copper series new-type thermal magnetic alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1125778A CN1125778A (en) | 1996-07-03 |
| CN1041116C true CN1041116C (en) | 1998-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94120001A Expired - Fee Related CN1041116C (en) | 1994-12-27 | 1994-12-27 | Iron-nickel-copper series new-type thermal magnetic alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041116C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892423A (en) * | 2010-07-29 | 2010-11-24 | 大连理工大学 | Cu-containing Fe-Ni stainless steel alloy |
| CN104451415A (en) * | 2014-12-02 | 2015-03-25 | 常熟市良益金属材料有限公司 | Magnetic alloy |
| CN110699609B (en) * | 2019-11-18 | 2021-01-15 | 国网湖南省电力有限公司 | Doped ferromagnetic alloy, ferromagnetic alloy wire anti-icing material and preparation method thereof |
| CN111690881A (en) * | 2020-06-11 | 2020-09-22 | 湘潭大学 | Method for increasing ordered transformation temperature of iron-nickel alloy |
| CN112962031B (en) * | 2021-02-03 | 2022-05-03 | 北京北冶功能材料有限公司 | Deicing material for power transmission line and preparation method thereof |
-
1994
- 1994-12-27 CN CN94120001A patent/CN1041116C/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 精密合金材料(上) 1984.3.1 《精密合金材料》编写小组 * |
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| Publication number | Publication date |
|---|---|
| CN1125778A (en) | 1996-07-03 |
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