CN104766685A - High-performance iron-cobalt soft magnetic alloy forging material - Google Patents
High-performance iron-cobalt soft magnetic alloy forging material Download PDFInfo
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- CN104766685A CN104766685A CN201410214940.0A CN201410214940A CN104766685A CN 104766685 A CN104766685 A CN 104766685A CN 201410214940 A CN201410214940 A CN 201410214940A CN 104766685 A CN104766685 A CN 104766685A
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Abstract
The invention provides a soft magnetic alloy forging material. The soft magnetic alloy forging material is prepared from the following chemical components (in mass fraction%): 48.70-50.10 of cobalt, 1.70-2.01% of vanadium, 0.50-1.10% of nickel, lower than 0.01% of carbon and the balance of iron and inevitable impurities. Under low magnetic fields, the alloy has high magnetic induction density B, high residual magnetism Br and low coercive force Hc, and used for processing relevant production parts, so that electromagnetic apparatuses of a power generator and the like have good working stability, and the structural dimensions and the weight of the electromagnetic apparatuses of the power generator and the like are remarkably reduced. The soft magnetic alloy forging material is suitable for the high-performance and small-size design and using requirements of the electromagnetic apparatuses of the power generator and the like.
Description
Technical field
The present invention relates to a kind of iron cobalt magnetically soft alloy forging material.
Background technology
Along with the level of informatization constantly improves, the demand of each system to electric power gets more and more, and require constantly to increase, require also more and more higher to its job stability, and overall dimension is more tending towards miniaturized to the design objective of the electromagnetic devices such as generator.This just requires that corresponding magnetically soft alloy material has high magnetic induction density B value, the magnetic induction density B particularly under downfield (H=80A/m) and high remanent magnetism Br.At present, the alloy material for the manufacture of generator etc. mainly contains: meet the trade mark 1J22 of GB GB/T15002-1994, Russian trade mark 49K2
and the Hrperco50 of Carpenter company of the U.S. 50A 50HS.The saturation induction density Bs of above-mentioned alloy is about 2.2T, does not all do requirement to the magnetic induction density B under downfield (H=80A/m) and remanent magnetism Br.The highest 1.5T that is no more than of actual remanent magnetism Br of 1J22, works under being usually applicable to highfield; When comparatively low magnetic field operation, often need compensate its defect to increase the electromagnetic device physical dimensions such as generator, thus constrain the requirement of the electromagnetic device Miniaturization Designs such as generator; There is certain magnetization non-uniform phenomenon in lower remanent magnetism Br illustrative material inside, also affects the job stability of the electromagnetic devices such as generator.Therefore, although existing alloy Bs is higher, there is the magnetic induction density B under downfield, remanent magnetism Br is not high enough.Usually take the method for magnetic-field annealing to improve magnetic induction density B, the remanent magnetism Br of existing alloy at present, but processing technology can be caused simultaneously complicated and increase production cost, magnetic-field annealing is simultaneously subject to the restriction of the condition such as equipment and part shape, therefore is difficult to the designing requirement meeting the electromagnetic device miniaturizations such as generator, high stability.
Summary of the invention
The object of the invention is the above-mentioned defect for existing alloy, a kind of novel metal magnetically soft alloy material is provided.This alloy has high magnetic flux density B, high remanent magnetism Br, low-coercivity Hc characteristic under downfield, meets the electromagnetic device high performance miniization design instructions for uses such as modern generator.
Design phiolosophy of the present invention: be basic chemical composition with iron cobalt, by adding the elements such as vanadium, nickel, chromium, molybdenum, improve the magnetic induction density B of alloy under downfield, saturation induction density Bs, improve the remanent magnetism Br of alloy, reduce coercivity H, thus obtain the metal soft magnetic alloy material of a kind of high magnetic flux density B, high remanent magnetism Br, low-coercivity Hc.
Alloying component (mass fraction %) design that the present invention relates to is: controlled by cobalt content 48.70 ~ 50.10, vanadium 1.70 ~ 2.01, nickel 0.50 ~ 1.10, carbon is less than 0.01.
The present invention adopt alloying element to the influence of alloy of the present invention:
Cobalt Co: have high-curie temperature, is conducive to carrying heavy alloyed magnetic flux density, but cobalt content is too high will cause serious processing difficulties, thus cobalt content preferably 48.70 ~ 50.10;
Vanadium V: because iron Co-based alloy is very crisp, is difficult to processing, by adding v element, improves alloy processing characteristics and resistivity.But vanadium has very strong Grain refinement, there is certain influence to the magnetic induction density B under downfield, therefore content of vanadium preferably 1.70 ~ 2.01;
Carbon C: content controls below 0.01, to reduce Formed compound as far as possible.Carbon content is higher, and the carbide that may separate out is more, and increase technical magnetization resistance, the magnetic property of alloy has a negative impact;
Nickel: improve iron Co-based alloy processing characteristics, appropriate nickel contributes to reducing coercivity H, nickel content preferably 0.50 ~ 1.10;
Chromium Cr: appropriate chromium element can improve the magnetic induction density B under downfield while improving iron Co-based alloy processing characteristics, contribute to improving Br, therefore chromium content controls below 0.40;
Molybdenum Mo: improve resistance alloys rate to reduce eddy current loss; Simplify Technology for Heating Processing, the operability of alloy Final Heat Treatment Process is stronger, is convenient to production and processing.But molybdenum affects obviously the magnetic induction density B under downfield and has the effect increasing coercivity H, so molybdenum content controls below 0.30.
The manufacture method of alloy of the present invention is:
Smelting process: induction furnace is smelted;
Processing mode: alloy pig obtains forging material finished product through forging;
Finished product heat treatment: at H
2heat-treat under atmosphere.
By processing and availability be above: magnetic induction density B
80the alloy material of>=1.7T, remanent magnetism Br>=1.7T, saturation induction density Bs>=2.2T, coercivity H≤90A/m.
The advantage that alloy of the present invention is compared with prior art had is:
Metallic iron cobalt magnetically soft alloy of the present invention has magnetic induction density B high under downfield, high remanent magnetism Br and high saturated magnetic induction Bs, makes the electromagnetic devices such as generator significantly can reduce its weight and physical dimension of it; Metallic iron cobalt magnetically soft alloy of the present invention does not need through magnetic-field heat treatment, and Technology for Heating Processing is simple, with low cost, is applicable to suitability for industrialized production.
Embodiment
Technical scheme of the present invention is further illustrated below by specific embodiment.
Embodiment 1: chemical composition: Co49.29, V1.70, C0.01, Ni0.50, remaining is Fe.Adopt vacuum induction furnace smelting, be processed into Φ 45mm bar through routine forging, finished product is at H
2heat-treat under atmosphere, the forging state alloy property obtained is:
B
80＝1.76T；Br＝1.72T；Bs＝2.32T；Hc＝40.8A/m。
Embodiment 2: chemical composition: Co48.70, V1.88, C0.003, Ni0.72, remaining is Fe.Adopt vacuum induction furnace smelting, be processed into 60mm × 60mm section bar through routine forging, finished product is at H
2heat-treat under atmosphere, the forging state alloy property obtained is:
B
80＝1.7T；Br＝1.7T；Bs＝2.26T；Hc＝69.5A/m。
Embodiment 3: chemical composition: Co50.10, V2.01, Si0.03, C0.008, Ni1.10, Cr0.40, Mo0.30, remaining is Fe.Adopt vacuum induction furnace smelting, be processed into 60mm × 250mm section bar through routine forging, finished product is at H
2heat-treat under atmosphere, the forging state alloy property obtained is:
B
80＝1.72T；Br＝1.7T；Bs＝2.28T；Hc＝86.4A/m。
Embodiment 4: chemical composition: Co49.02, V1.76, C0.009, Ni0.60, Cr0.27, remaining is Fe.Adopt vacuum induction furnace smelting, be processed into Φ 18mm bar through routine forging, finished product is at H
2heat-treat under atmosphere, the forging state alloy property obtained is:
B
80＝1.73T；Br＝1.75T；Bs＝2.26T；Hc＝77.8A/m。
Embodiment 5: chemical composition: Co48.97, V1.90, C0.01, Ni0.81, Mo0.11, remaining is Fe.Adopt vacuum induction furnace smelting, be processed into Φ 34mm bar through routine forging, finished product is at H
2heat-treat under atmosphere, the forging state alloy property obtained is:
B
80＝1.7T；Br＝1.73T；Bs＝2.27T；Hc＝88.3A/m。
Claims (3)
1. a high-performance iron cobalt magnetically soft alloy forging material, is characterized in that: alloy composition (mass fraction %) is cobalt 48.70 ~ 50.10, vanadium 1.70 ~ 2.01, nickel 0.50 ~ 1.10, and carbon is less than 0.01, and all the other are iron and inevitable impurity.
2. a magnetically soft alloy forging material as claimed in claim 1, it is characterized in that: also comprise one or more micro alloying elements following in alloy, and its content is chromium 0 ~ 0.40, molybdenum 0 ~ 0.30.
3. a magnetically soft alloy forging material as claimed in claim 1 or 2, is characterized in that: this alloy property reaches following level: B
80>=1.7T, Br>=1.7T, Bs>=2.2T, Hc≤90A/m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410214940.0A CN104766685A (en) | 2014-05-21 | 2014-05-21 | High-performance iron-cobalt soft magnetic alloy forging material |
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| CN201410214940.0A CN104766685A (en) | 2014-05-21 | 2014-05-21 | High-performance iron-cobalt soft magnetic alloy forging material |
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| CN104766685A true CN104766685A (en) | 2015-07-08 |
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| CN201410214940.0A Pending CN104766685A (en) | 2014-05-21 | 2014-05-21 | High-performance iron-cobalt soft magnetic alloy forging material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893199A (en) * | 2017-11-23 | 2018-04-10 | 海盐中达金属电子材料有限公司 | A kind of Co27 siderochrome cobalt magnetically soft alloy steel band |
| CN110129535A (en) * | 2019-06-17 | 2019-08-16 | 陕西新精特钢研精密合金有限公司 | A kind of high intensity 1J22 bar and preparation method thereof |
| CN112662951A (en) * | 2020-12-25 | 2021-04-16 | 江苏新核合金科技有限公司 | Precise alloy material for permanent magnet motor and preparation process thereof |
| CN112680578A (en) * | 2020-12-18 | 2021-04-20 | 孙学银 | Heat treatment preparation method of FeCo soft magnetic alloy with high magnetic permeability and high saturation density |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116727A (en) * | 1975-03-04 | 1978-09-26 | Telcon Metals Limited | Magnetical soft alloys with good mechanical properties |
| CN104488029A (en) * | 2012-08-13 | 2015-04-01 | 山阳特殊制钢株式会社 | Soft magnetic alloy for magnetic recording purposes, sputtering target material, and magnetic recording medium |
-
2014
- 2014-05-21 CN CN201410214940.0A patent/CN104766685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116727A (en) * | 1975-03-04 | 1978-09-26 | Telcon Metals Limited | Magnetical soft alloys with good mechanical properties |
| CN104488029A (en) * | 2012-08-13 | 2015-04-01 | 山阳特殊制钢株式会社 | Soft magnetic alloy for magnetic recording purposes, sputtering target material, and magnetic recording medium |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893199A (en) * | 2017-11-23 | 2018-04-10 | 海盐中达金属电子材料有限公司 | A kind of Co27 siderochrome cobalt magnetically soft alloy steel band |
| CN110129535A (en) * | 2019-06-17 | 2019-08-16 | 陕西新精特钢研精密合金有限公司 | A kind of high intensity 1J22 bar and preparation method thereof |
| CN112680578A (en) * | 2020-12-18 | 2021-04-20 | 孙学银 | Heat treatment preparation method of FeCo soft magnetic alloy with high magnetic permeability and high saturation density |
| CN112662951A (en) * | 2020-12-25 | 2021-04-16 | 江苏新核合金科技有限公司 | Precise alloy material for permanent magnet motor and preparation process thereof |
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Application publication date: 20150708 |