CN100460547C - High-temperature-resistance FeNiCo constant-modulus alloy, its preparation method, and method for preparing components by using same - Google Patents
High-temperature-resistance FeNiCo constant-modulus alloy, its preparation method, and method for preparing components by using same Download PDFInfo
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- CN100460547C CN100460547C CNB2006100952700A CN200610095270A CN100460547C CN 100460547 C CN100460547 C CN 100460547C CN B2006100952700 A CNB2006100952700 A CN B2006100952700A CN 200610095270 A CN200610095270 A CN 200610095270A CN 100460547 C CN100460547 C CN 100460547C
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Abstract
The invention discloses a constant-elasticity alloy of thermostable FeNiCo and preparing method, which comprises the following parts: 27.0-30.0% Ni, 24.0-27.0% Co, 1.0-3.5% Cr, 1.0-3.5% Nb, 1.0-3.0% Ti, 0.1-2.5% Al and Fe. The preparing method comprises the following steps: adopting vacuum induction to fuse; ingoting through refusing electric slag; forging into bar mould according the kinds of size; quenching; manufacturing into bar; loading element in the vacuum disposing furnace; proceeding ageing effect disposal; obtaining the product without inner stress and stable constant-elasticity.
Description
Technical field the present invention relates to a kind of alloy, particularly a kind of high-temperature-resistance FeNiCo constant-modulus and preparation method thereof and the method for preparing element with this alloy.
Background technology is in the manufacturing processed of precision instrumentation, usually need to use in certain temperature range, the very little or alloy of " constant " of its elastic modulus change that is to say that the natural vibration frequency of alloy does not change with temperature, and this type of alloy just belongs to constant modulus alloy.
Constant modulus alloy is mainly used in aspects such as mechanics of communication, aerospace flight technology, high-precision instrument and timing device, is used to make stable frequency element, instrument hairspring, elastic sensing element etc.Constant modulus alloy mainly can be divided into two big classes: the one, and iron magnetic constant elastic alloy, the 2nd, paramagnetism or antiferromagnetism constant modulus alloy, no matter be from research or angle from using, iron magnetic constant elastic alloy is comparative maturity all, use also relatively extensively, in general all belong to the mutation that Ni-SpanC is an alloy.FeNi base constant modulus alloy 3J53,3J58 alloy that China has formed the trade mark, extensive application at present just belong to iron magnetic constant elastic alloy, they also are the alloys of Ni-SpanC type, near these alloys (one 40～+ 80 ℃ or 100 ℃) room temperature have less frequency-temperature coefficient, can satisfy near the service requirements of instrument room temperature.Along with science and technology development, the use temperature of instrument is more and more higher, scope is also more and more wideer, when under comparatively high temps, using, the frequency-temperature coefficient meeting control breakdown of these alloys, lose its permanent elastic performance, cause bigger deviation to instrument, high temperature resistant constant modulus alloy develops just thus.
Summary of the invention purpose of the present invention is exactly at the deficiencies in the prior art, provide a kind of in wide temperature range-60～+ 185 ℃, high-temperature-resistance FeNiCo constant-modulus with low frequency temperature coefficient, another object of the present invention provides a kind of method for preparing this alloy, and a further object of the invention just provides the method that this alloy of a kind of usefulness prepares element.
For achieving the above object, the present invention adopts following technical scheme:
A kind of high-temperature-resistance FeNiCo constant-modulus, the weight percent of this alloy composition is: Ni 27.0～30.0%, Co 24.0～27.0%, Cr 1.0～3.5%, Nb 1.0～3.5%, Ti 1.0～3.0%, Al 0.1～2.5%, surplus are Fe.
The Curie temperature of FeNi base alloy is low, and this has just limited its use temperature scope, and the interpolation of Co element has improved the Curie temperature of FeNi base alloy, develops into the ferromegnetism alloy with constant elasticity at high temp.Below Curie temperature, because invar is unusual and Δ E effect, causes the elasticity abnormality, thereby can in wide temperature range, obtain permanent elastic performance, have low frequency temperature coefficient.
The preparation method of described high-temperature-resistance FeNiCo constant-modulus comprises the steps:
A), by weight percentage take by weighing each component of alloy, adopt vacuum induction melting, melting technology is 15～30 minutes for fusing power 80Kw, refining power 20～30Kw, vacuum tightness 1～2Pa, smelting time;
B), become ingot casting, be heated to 1150～1200 ℃ in diesel oil stove, forge hot becomes excellent base through esr;
C), excellent base that forge hot is become is 980～1020 ℃ of insulations 30 minutes down, the finished product bar is processed in the shrend solution treatment.
Adjust alloy organizing and performance by suitable thermal treatment process, the frequency-temperature coefficient of alloy is remained unchanged in wide temperature range substantially, satisfy the wide temperature service requirements of high precision instrument instrument.
Prepare the method for element with the above high-temperature-resistance FeNiCo constant-modulus, the finished product bar is processed into element, place vacuum heat treatment furnace to carry out final timeliness thermal treatment,, comprise the steps: to adjust and the permanent elastic performance of stable alloy
A), be incubated 2 hours down at 700 ± 5 ℃;
B), cool to 600 ± 5 ℃ of insulations after 4 hours furnace cooling make the high-temperature-resistance FeNiCo constant-modulus element to room temperature.
The salient features that this alloy reaches is as follows:
1, the frequency-temperature coefficient of alloy: β
F (60～+ 185 ℃)=(20～+ 30) * 10
-6/ ℃,
2, the Young's modulus of alloy (room temperature): E=160～170GPa,
3, the Curie temperature of alloy: T
c〉=400 ℃.
High-temperature-resistance FeNiCo constant-modulus of the present invention has high Curie temperature, in wide temperature range, has low frequency-temperature coefficient.Adopt high-temperature-resistance FeNiCo constant-modulus preparation method of the present invention, adjustable whole alloy organizing and performance, the frequency-temperature coefficient of alloy is remained unchanged in wide temperature range substantially, satisfy the wide temperature service requirements of high precision instrument instrument, can satisfy the high temperature service requirements of high precision instrument instrument.Adopt high-temperature-resistance FeNiCo constant-modulus of the present invention to prepare the method for element, can eliminate internal stress, the permanent elastic performance of raising and stable alloy.
Embodiment
Embodiment 1
The component content of choosing alloy is: Ni 27.5%, and Co 25.0%, and Cr 1.8%, and Nb 1.2%, and Ti 1.5%, and Al 0.9%, and remainder is Fe.
Mentioned component is adopted vacuum induction melting, and melting technology is 15～30 minutes for fusing power 80Kw, refining power 20～30Kw, vacuum tightness 1～2Pa, smelting time; Become ingot casting through esr again, be heated to 1150～1200 ℃ in diesel oil stove, forge hot becomes the excellent base of all size, after 980～1020 ℃ of insulations shrend solution treatment in 30 minutes, is processed into the finished product bar of required specification.
Be processed into element with this bar, in the vacuum heat treatment furnace of again element being packed into, be incubated 2 hours down at 700 ± 5 ℃; Cool to 600 ± 5 ℃ of insulations after 4 hours furnace cooling make the high-temperature-resistance FeNiCo constant-modulus element to room temperature.
Embodiment 2
The component content of choosing alloy is: Ni 29.0%, and Co 26.5%, and Cr 2.5%, and Nb 2.7%, and Ti 2.0%, and Al 1.6%, and remainder is Fe.
Production method is with embodiment 1.
Embodiment 3
The component content of choosing alloy is: Ni 30.0%, and Co 26.8%, and Cr 3.1%, and Nb 3.0%, and Ti 2.7%, and Al 2.1%, and remainder is Fe.
Production method is with embodiment 1.
Claims (3)
1. high-temperature-resistance FeNiCo constant-modulus, it is characterized in that the weight percent of this alloy composition is: Ni 27.0～30.0%, Co 24.0～27.0%, Cr 1.0～3.5%, Nb 1.0～3.5%, Ti 1.0～3.0%, Al 0.1～2.5%, surplus are Fe.
2. the preparation method of the described high-temperature-resistance FeNiCo constant-modulus of claim 1 is characterized in that comprising the steps:
A), by weight percentage take by weighing each component of alloy, adopt vacuum induction melting, melting technology is 15～30 minutes for fusing power 80Kw, refining power 20～30Kw, vacuum tightness 1～2Pa, smelting time;
B), become ingot casting, be heated to 1150～1200 ℃ in diesel oil stove, forge hot becomes excellent base through esr;
C), excellent base that forge hot is become is 980～1020 ℃ of insulations 30 minutes down, the finished product bar is processed in the shrend solution treatment.
3. the method for preparing element with the described high-temperature-resistance FeNiCo constant-modulus of claim 1, it is characterized in that the finished product bar is processed into element, place vacuum heat treatment furnace to carry out final timeliness thermal treatment, the permanent elastic performance with adjustment and stable alloy comprises the steps:
A), be incubated 2 hours down at 700 ± 5 ℃;
B), cool to 600 ± 5 ℃ of insulations after 4 hours furnace cooling make the high-temperature-resistance FeNiCo constant-modulus element to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100952700A CN100460547C (en) | 2006-12-08 | 2006-12-08 | High-temperature-resistance FeNiCo constant-modulus alloy, its preparation method, and method for preparing components by using same |
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| CNB2006100952700A CN100460547C (en) | 2006-12-08 | 2006-12-08 | High-temperature-resistance FeNiCo constant-modulus alloy, its preparation method, and method for preparing components by using same |
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| CN100460547C true CN100460547C (en) | 2009-02-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100489134C (en) * | 2007-06-22 | 2009-05-20 | 钢铁研究总院 | Low-density magnetism-free constant elasticity alloy |
| CN103498066B (en) * | 2013-09-26 | 2015-12-09 | 山西太钢不锈钢股份有限公司 | A kind of containing Mg superalloy smelting process |
| CN104328325B (en) * | 2014-09-29 | 2017-05-17 | 钢铁研究总院 | Iron-nickel-based low-delaying constant-elastic alloy used in diaphragm capsule sensor and preparation method thereof |
| CN112746217B (en) * | 2019-10-31 | 2022-10-21 | 宝武特种冶金有限公司 | High-strength low-expansion invar alloy wire and manufacturing method thereof |
| CN111705255B (en) * | 2020-07-30 | 2022-02-18 | 北京北冶功能材料有限公司 | high-Q-value low-frequency temperature coefficient constant-elasticity alloy and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4517158A (en) * | 1983-03-31 | 1985-05-14 | Tokyo Shibaura Denki Kabushiki Kaisha | Alloy with constant modulus of elasticity |
| JPH0611900B2 (en) * | 1983-03-31 | 1994-02-16 | 株式会社東芝 | Constant elasticity alloy |
| CN1100160C (en) * | 2000-12-12 | 2003-01-29 | 钢铁研究总院 | High-strength alloy with constant elasticity at high temp and its preparing process |
-
2006
- 2006-12-08 CN CNB2006100952700A patent/CN100460547C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4517158A (en) * | 1983-03-31 | 1985-05-14 | Tokyo Shibaura Denki Kabushiki Kaisha | Alloy with constant modulus of elasticity |
| JPH0611900B2 (en) * | 1983-03-31 | 1994-02-16 | 株式会社東芝 | Constant elasticity alloy |
| CN1100160C (en) * | 2000-12-12 | 2003-01-29 | 钢铁研究总院 | High-strength alloy with constant elasticity at high temp and its preparing process |
Non-Patent Citations (2)
| Title |
|---|
| FeNiCo高温恒弹性合金特性研究. 郭卫民，谭军，黄水清.功能材料，第36卷第2005年第8期. 2005 |
| FeNiCo高温恒弹性合金特性研究. 郭卫民，谭军，黄水清.功能材料，第36卷第2005年第8期. 2005 * |
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