CN105401109A - Heat treatment process for cunico - Google Patents
Heat treatment process for cunico Download PDFInfo
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- CN105401109A CN105401109A CN201510799754.2A CN201510799754A CN105401109A CN 105401109 A CN105401109 A CN 105401109A CN 201510799754 A CN201510799754 A CN 201510799754A CN 105401109 A CN105401109 A CN 105401109A
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- cunico
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- normal temperature
- temperature
- treatment process
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a heat treatment process for cunico. The heat treatment process comprises the steps that 1, solution treatment is conducted, specifically, the temperature is raised from the normal temperature to 900 DEG C +/- 30 DEG C, heat preservation is carried out for 120 min at the temperature of 900 DEG C +/- 30 DEG C, then, quenching treatment is conducted, and water serves as quenching medium; 2, aging treatment is conducted, specifically, the temperature is raised from the normal temperature to 500 DEG C +/- 50 DEG C, after the heat preservation is carried out for 120 min, the cunico is naturally cooled to the normal temperature; and 3, subzero treatment is conducted, specifically, the cunico is put into a vacuum bottle containing liquid nitrogen and then taken out after being subjected to the subzero treatment for 120 min, and the temperature is naturally raised to the normal temperature. By means of the heat treatment process for the cunico, the test of the product shows that the key quality indexes such as surface hardness, yield strength and electric conductivity of the cunico meet relevant standards and are improved to a certain degree compared with those of the cunico before the heat treatment; the operational reliability of the cunico is high, and the service life is long.
Description
Technical field
The present invention relates to metallic substance thermal treatment process, specifically a kind of thermal treatment process of cunico.
Background technology
Except configuration copper alloy, most fine copper is used in electrical equipment industry to make full use of the performance of its conduction, heat conduction.The quality of fine copper is softer, has stronger plastic deformation ability, can be processed into any section bar, but just because of this, the intensity of fine copper is not suitable for industrial application, only has and carries out to fine copper the application indexes that alloying may reach technological parameter.The application of copper alloy in modern industry is extremely extensive, and the component of copper alloy are often inevitably placed in air or seawater, often require that some corrosion resistant copper alloys are developed the work-ing life in order to extension device.Quite ripe to the research of copper alloy both at home and abroad, various wear-resisting, high-strength, component that high-conductivity copper alloy has been widely used in big machinery.At present, start to rise to the research of cunico both at home and abroad, cunico in adnic, adds existing the novel material that Co forms new alloy, and the character (high connductivity, good stress relaxation drag, formability and high strength) of its uniqueness is particularly suitable for being widely used in lead frame, terminal and other current carrying element etc.Thermal treatment process is the key procedure determining cunico physical properties, and its technology is still immature.
Summary of the invention
Problem to be solved by this invention is, provides a kind of thermal treatment process of cunico, while the basic property retaining copper, improves the comprehensive physical performance of cunico further, and takes into account economy.
For reaching above-mentioned technique effect, the invention provides following technical scheme: a kind of thermal treatment process of cunico, the technical scheme adopted comprises the following steps:
(1) solution treatment: from normal temperature be warming up to be incubated 120min 900 ± 30 DEG C of temperature after carry out quench treatment, quenchant is water;
(2) ageing treatment: naturally cool to normal temperature after normal temperature is warming up to 500 ± 50 DEG C of insulation 120min;
(3) sub-zero treatment: be put in sub-zero treatment 120min in the vacuum flask filling liquid nitrogen and take out, be naturally warming up to normal temperature.
The thermal treatment process inventive principle of this kind of cunico is:
The hardness of as cast condition nickel cobalt-copper alloy raises along with the rising of cobalt contents, the hardness of alloy decline all in various degree after solution treatment.The alloy rigidity of nickel cobalt-copper alloy after the sub-zero treatment of solid solution one timeliness one of different cobalt contents is greater than the hardness through solid solution one deep cooling one timeliness art breading.The alloy of the different cobalt contents alloy rigidity after 870 DEG C of solid solutions/2h mono-deep cooling/2h mono-timeliness/2h, 900 DEG C of solid solution/2h mono-deep cooling/2h mono-timeliness/2h is all higher than only entering 870 DEG C of solid solutions/2h mono-deep cooling/2h, solid solution 900 DEG C/2h mono-deep cooling/2h.The hardness of alloy alloy after the sub-zero treatment of differing temps solid solution one differing temps timeliness one of different cobalt contents is all greater than the hardness of alloy after differing temps solid solution one differing temps ageing treatment.The copper cobalt-nickel alloy of different cobalt contents reduces along with solid solubility temperature raises hardness, and identical solid solubility temperature hardness raises with aging temp and raises, and the hardness of different solid solubility temperature alloy raises with aging temp, and the amplitude that solid solubility temperature high rigidity raises is large.The eutectoid of nickel cobalt-copper alloy after 930 DEG C of solid solutions/2h process in alloy starts to dissolve mutually, and quantity starts to reduce, and during as cast condition, in alloy, erose precipitated phase starts to change round shape into.When alloy air cooling after technique 930 DEG C of solid solution/2h mono-550 DEG C of timeliness/2h, in ag(e)ing process, Ni, Co, Cu and mishmetal are separated out and are formed intermetallic compound [(CoNi) Cu4], and alloy serves the effect of precipitation strength.
The invention has the beneficial effects as follows: cunico alloy interalloy element after differing temps solution treatment forms a large amount of supersaturated solid solutions, the hardness of alloy decreases to shrink between alloy internal grain after sub-zero treatment and makes the hardness of alloy start to improve, alloying element again in Wetted constructures alloy produces Precipitation and produces precipitation strength, the hardness of cunico starts further raising, heightens so the hardness of different cobalt contents nickel cobalt copper is all obvious than as cast condition after this art breading.
Embodiment
Below by embodiment, the present invention is specifically described; only be used to further illustrate the present invention; can not be interpreted as limiting the scope of the present invention, the technician in this field can make some nonessential improvement and adjustment according to the content of foregoing invention to the present invention.
Cunico composition proportion (%)
| Ni | Co | Mishmetal | Cu |
| 1.0 | 0.2-1.0 | 0.1 | Surplus |
Embodiment 1
A thermal treatment process for cunico, comprises the following steps:
(1) solution treatment: from normal temperature be warming up to be incubated 120min 870 DEG C of temperature after carry out quench treatment, quenchant is water;
(2) ageing treatment: naturally cool to normal temperature after normal temperature is warming up to 450 DEG C of insulation 120min;
(3) sub-zero treatment: be put in sub-zero treatment 120min in the vacuum flask filling liquid nitrogen and take out, be naturally warming up to normal temperature.
Physical-property parameter after this art breading is:
Surface hardness: HBS94.8;
Yield strength: 856MPa;
Electric conductivity: 53.8%ICS.
Embodiment 2
A thermal treatment process for cunico, comprises the following steps:
(1) solution treatment: from normal temperature be warming up to be incubated 120min 900 DEG C of temperature after carry out quench treatment, quenchant is water;
(2) ageing treatment: naturally cool to normal temperature after normal temperature is warming up to 500 DEG C of insulation 120min;
(3) sub-zero treatment: be put in sub-zero treatment 120min in the vacuum flask filling liquid nitrogen and take out, be naturally warming up to normal temperature.
Physical-property parameter after this art breading is:
Surface hardness: HBS97.3;
Yield strength: 821MPa;
Electric conductivity: 51.6%ICS.
Embodiment 3
A thermal treatment process for cunico, comprises the following steps:
(1) solution treatment: from normal temperature be warming up to be incubated 120min 930 DEG C of temperature after carry out quench treatment, quenchant is water;
(2) ageing treatment: naturally cool to normal temperature after normal temperature is warming up to 550 DEG C of insulation 120min;
(3) sub-zero treatment: be put in sub-zero treatment 120min in the vacuum flask filling liquid nitrogen and take out, be naturally warming up to normal temperature.
Physical-property parameter after this art breading is:
Surface hardness: HBS96.1;
Yield strength: 859MPa;
Electric conductivity: 51.2%ICS.
Can be found out by above concrete case study on implementation, after tested, the Key Quality Indicator such as its surface hardness, yield strength, electric conductivity all meet relevant criterion to the product selecting present invention process to obtain, and obtain certain lifting before comparing thermal treatment, the working reliability of alloy is high, long service life.
Claims (1)
1. a thermal treatment process for cunico, is characterized in that, comprises the following steps:
(1) solution treatment: from normal temperature be warming up to be incubated 120min 900 ± 30 DEG C of temperature after carry out quench treatment, quenchant is water;
(2) ageing treatment: naturally cool to normal temperature after normal temperature is warming up to 500 ± 50 DEG C of insulation 120min;
(3) sub-zero treatment: be put in sub-zero treatment 120min in the vacuum flask filling liquid nitrogen and take out, be naturally warming up to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799754.2A CN105401109A (en) | 2015-11-19 | 2015-11-19 | Heat treatment process for cunico |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799754.2A CN105401109A (en) | 2015-11-19 | 2015-11-19 | Heat treatment process for cunico |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105401109A true CN105401109A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510799754.2A Pending CN105401109A (en) | 2015-11-19 | 2015-11-19 | Heat treatment process for cunico |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105401109A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671877A (en) * | 2002-07-05 | 2005-09-21 | 奥林公司 | Copper alloy containing cobalt, nickel and silicon |
-
2015
- 2015-11-19 CN CN201510799754.2A patent/CN105401109A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671877A (en) * | 2002-07-05 | 2005-09-21 | 奥林公司 | Copper alloy containing cobalt, nickel and silicon |
Non-Patent Citations (1)
| Title |
|---|
| 李鹏: "《热处理对铜镍钴合金组织性能影响的研究》", 《中国优秀硕士学位论文全文数据库（工程科技Ⅰ辑）》 * |
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Application publication date: 20160316 |
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