CN103668021B - Improve the online annealing method of niti-shaped memorial alloy plasticity - Google Patents
Improve the online annealing method of niti-shaped memorial alloy plasticity Download PDFInfo
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- CN103668021B CN103668021B CN201310675100.XA CN201310675100A CN103668021B CN 103668021 B CN103668021 B CN 103668021B CN 201310675100 A CN201310675100 A CN 201310675100A CN 103668021 B CN103668021 B CN 103668021B
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Abstract
The invention discloses a kind of online annealing method improving niti-shaped memorial alloy plasticity, in drawing process, online anneal is carried out to rich nickel-Ti shape memory alloy, then cools.The present invention improves the online annealing method of niti-shaped memorial alloy plasticity, by carrying out online anneal to rich nickel-Ti shape memory alloy drawing limit in limit in drawing process, rich nickel-Ti shape memory alloy is made to have good plasticity, not yielding, stable performance, and its method is simple, saves time, improve working (machining) efficiency.
Description
Technical field
The invention belongs to Alloy Processing field, relate to a kind of online annealing method improving niti-shaped memorial alloy plasticity.
Background technology
Rich nickel-Ti shape memory alloy is subject to the extensive attention of academia and engineering circles because having excellent shape memory effect and complicated transformation behavior.In the last few years, the performance study of rich nickel-Ti binary alloy in shape memory alloy plasticity also achieved valuable achievement.Relevant article and report are pointed out, in order to make rich nickel-Ti memorial alloy, there is better shape memory effect and good plasticity, usual employing following methods processes: medium annealing process and Full Annealing process, these two kinds of methods existing carry out anneal after Ni-Ti shape memory alloy machines, and there is annealing length consuming time, efficiency is low, operation is various, heat the defects such as uneven.
Summary of the invention
The object of this invention is to provide a kind of online annealing method improving niti-shaped memorial alloy plasticity, solve problems of the prior art.
The technical solution adopted in the present invention is, improves the online annealing method of niti-shaped memorial alloy plasticity, carries out online anneal, then cool rich nickel-Ti shape memory alloy in drawing process.
Feature of the present invention is also,
Online annealing is online annealing 1.0 ~ 5.0min at 780 ~ 850 DEG C.
Online annealing is online annealing 1.0 ~ 3.0min at 780 ~ 810 DEG C, and then the 1.0 ~ 5.0min that anneals online at 810 DEG C ~ 850 DEG C.
Cooling adopts water or oil to cool.
Optimum scheme is, to rich nickel-Ti shape memory alloy in drawing process, first at 810 DEG C, heats 2.3min again after online annealing 1.8min at 830 DEG C, finally cools with water.
The invention has the beneficial effects as follows, the present invention improves the online annealing method of niti-shaped memorial alloy plasticity, by carrying out online anneal to rich nickel-Ti shape memory alloy drawing limit in limit in drawing process, rich nickel-Ti shape memory alloy is made to have good plasticity, not yielding, stable performance, and its method is simple, save time, improve working (machining) efficiency.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Improve the online annealing method of niti-shaped memorial alloy plasticity, in drawing process, online anneal is carried out to rich nickel-Ti shape memory alloy, then carries out cooling with water or oil.
Online annealing process is: anneal online 1.0 ~ 5.0min or the 1.0 ~ 3.0min that first anneals online at 780 ~ 810 DEG C at 780 ~ 850 DEG C, and then the 1.0 ~ 5.0min that anneals online at 810 DEG C ~ 850 DEG C.
The present invention improves the online annealing method of niti-shaped memorial alloy plasticity, by carrying out online anneal to rich nickel-Ti shape memory alloy drawing limit in limit in drawing process, rich nickel-Ti shape memory alloy is made to have good plasticity, not yielding, stable performance, and its method is simple, saves time, improve working (machining) efficiency.
Embodiment 1
By rich nickel-Ti shape memory alloy in drawing process, anneal online 3.0min at 780 DEG C, cools with water.
Embodiment 2
By rich nickel-Ti shape memory alloy in drawing process, anneal online 2.3min at 800 DEG C, cools with water.
Embodiment 3
By rich nickel-Ti shape memory alloy in drawing process, anneal online 1.8min at 810 DEG C, cools with oil.
Embodiment 4
By rich nickel-Ti shape memory alloy in drawing process, anneal online 1.0min at 830 DEG C, cools with water.
Embodiment 5
By rich nickel-Ti shape memory alloy in drawing process, anneal online 0.7min at 850 DEG C, cools with water.
Embodiment 6
By rich nickel-Ti shape memory alloy in drawing process, anneal online after online annealing 1.8min 3.0min at 810 DEG C at 830 DEG C again, finally cools with water.
Embodiment 7
By rich nickel-Ti shape memory alloy in drawing process, first anneal online after online annealing 1.0min 5min at 810 DEG C at 820 DEG C again, finally cools with water.
Embodiment 8
By rich nickel-Ti shape memory alloy in drawing process, first anneal online after online annealing 3min 1.0min at 780 DEG C at 850 DEG C again, finally cools with water.
Embodiment 9
By rich nickel-Ti shape memory alloy in drawing process, first anneal online after online annealing 2min 4min at 800 DEG C at 820 DEG C again, finally cools with oil.
Embodiment 10
By rich nickel-Ti shape memory alloy in drawing process, first anneal online after online annealing 1.5min 2min at 810 DEG C at 840 DEG C again, finally cools with water.
At room temperature utilize electronic tensile test machine to do tension test to the rich nickel-Ti shape memory alloy that embodiment 1-10 process obtains, obtain its unit elongation as shown in table 1.
Table 1 embodiment 1 ~ 10 processes the unit elongation of the rich nickel-Ti shape memory alloy obtained
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Unit elongation/% | 31.0 | 35.5 | 38.2 | 36.5 | 33.5 | 40.5 | 54.5 | 45.6 | 43.5 | 40.0 |
As can be seen from Table 1, the unit elongation of the rich nickel-Ti shape memory alloy that the online annealing method of the present invention obtains all is greater than 30%, and can reach 54.5%, the alloy that visible this method obtains all has higher unit elongation, and plasticity is good.
Claims (1)
1. improve the online annealing method of niti-shaped memorial alloy plasticity, it is characterized in that, in drawing process, carry out online anneal to rich nickel-Ti shape memory alloy, first anneal online after online annealing 1.5min 2min at 810 DEG C at 840 DEG C again, finally cools with water.
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| CN201310675100.XA CN103668021B (en) | 2013-12-11 | 2013-12-11 | Improve the online annealing method of niti-shaped memorial alloy plasticity |
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| CN201310675100.XA CN103668021B (en) | 2013-12-11 | 2013-12-11 | Improve the online annealing method of niti-shaped memorial alloy plasticity |
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| CN103668021A CN103668021A (en) | 2014-03-26 |
| CN103668021B true CN103668021B (en) | 2016-02-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106269972A (en) * | 2016-08-16 | 2017-01-04 | 宝鸡核新金属有限公司 | The preparation for processing of big substance high-performance titanium or titanium alloy light parcel |
| CN110976536A (en) * | 2019-12-30 | 2020-04-10 | 上海埃蒙迪材料科技股份有限公司 | Method for processing nickel-titanium shape memory alloy wire |
| CN111346942B (en) * | 2020-03-12 | 2021-10-29 | 西安华创新材料有限公司 | Method for processing nickel-titanium shape memory alloy high-strength wire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649429A (en) * | 2009-06-30 | 2010-02-17 | 镇江忆诺唯记忆合金有限公司 | Method of producing NiTiV shape memory alloy wire |
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| FR2960003A1 (en) * | 2010-05-12 | 2011-11-18 | Minitubes Sa | SUPERELASTIC MATERIAL WITH HIGH DUCTILITY |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101649429A (en) * | 2009-06-30 | 2010-02-17 | 镇江忆诺唯记忆合金有限公司 | Method of producing NiTiV shape memory alloy wire |
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Effective date of registration: 20210201 Address after: No.10, north section of Weihua Road, Jingwei new town, Xi'an Economic and Technological Development Zone, Shaanxi 710000 Patentee after: XI'AN SAITE SIMAI TITANIUM INDUSTRY Co.,Ltd. Address before: 710021 No. three, No. 46, Fengcheng economic and Technological Development Zone, Shaanxi, Xi'an Patentee before: XI'AN SIWEI METAL MATERIALS Co.,Ltd. |
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