CN103614677A - Subzero treatment process of copper material - Google Patents
Subzero treatment process of copper material Download PDFInfo
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- CN103614677A CN103614677A CN201310647017.1A CN201310647017A CN103614677A CN 103614677 A CN103614677 A CN 103614677A CN 201310647017 A CN201310647017 A CN 201310647017A CN 103614677 A CN103614677 A CN 103614677A
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- copper material
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Abstract
The invention discloses a subzero treatment process of a copper material. The subzero treatment process comprises the following steps: (1) dehumidifying, namely, dehumidifying and drying the to-be-treated copper material; (2) cooling, namely, putting the dried copper material into subzero equipment, and controlling the subzero equipment by using a computer so as to reduce the temperature linearly, wherein the reduction speed is 0.5-1 DEG C/minute, and the temperature is reduced to be minus 190 DEG C to minus 196 DEG C from normal temperature; (3) performing heat preservation, namely performing heat preservation for greater than or equal to 2 hours at minus 190 DEG C to minus 196 DEG C according to the size of the material; (4) raising the temperature, namely, linearly and slowly raising the temperature back to be the normal temperature in a balance circulation mode. Compared with the prior art, the subzero treatment process has the advantages that the problems that only the physical properties of a copper tissue are changed and the electric property influence is counteracted after subzero treatment are solved; according to the practical application situation, materials with different hardness and tension forces are treated by controlling the heat preservation time at minus 190 DEG C to minus 196 DEG. The copper material treated by the process can be applied to audios and liners, and the sound quality can be greatly improved.
Description
Technical field
The present invention relates to a kind of cryogenic treatment process of copper material.
Background technology
Existing copper material (red copper), for the heat treatment process such as quench hot (annealing) technique are made, although it is available, but the thermal treatment due to process, make the grain boundaries of copper have the defects such as a large amount of impurity, room and dislocation, so just cause the scattering phase of electronics to strengthen, be unfavorable for the transmission of electronics, thereby reduced the conductivity of material.The material of sub-zero treatment rapidly, although there is variation in crystal mechanism, make the reduction of vacancy concentration reduce the scattering effect of electronics, resistivity is declined, improved conductivity, but also can make the grain boundaries of copper have the defects such as room and dislocation while adopting traditional deep freeze refrigeration plant to carry out rapidly deep cooling, so just caused the scattering phase of electronics to strengthen, being unfavorable for the transmission of electronics, so repeal by implication in two aspects, is also can not have any raising to conductivity.
Summary of the invention
The present invention is in order to solve above-mentioned deficiency, and a kind of cryogenic treatment process of copper material is provided.
Above-mentioned purpose of the present invention realizes by following technical scheme: a kind of cryogenic treatment process of copper material, is characterized in that: comprise the following steps:
(1) dehumidifying: by copper material to be processed, dehumidify, drying and processing;
(2) cooling: the copper material after drying is placed in deep freeze refrigeration plant, utilizes computer to control deep freeze refrigeration plant, temperature linearity is declined, reduction of speed is 0.5～1 ℃/min, is down to-190～-196 ℃ from normal temperature, does different choice according to the difference of quality of materials;
(3) insulation: be incubated >=2 hours according to material size at-190～-196 ℃;
(4) heat up: with equalization cycle mode linearity, slowly temperature is risen back to normal temperature.
The present invention compared with prior art has the following advantages: the cooling sub-zero treatment of this linear mode, has solved after sub-zero treatment and only to copper, organized physicals to change, the problem that impact is offset on electric property; Can, according to actual service condition, by controlling the duration of-190～-196 ℃ of soaking times, process out the material of the pulling force of different hardness.The copper material of processing by this method is used has higher lifting to tonequality on sound equipment, courage machine; Also can be according to self-demand, increase pliability and intensity that soaking time promoted or reduced material, the life-span of material is also improved.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
A cryogenic treatment process for copper material, is characterized in that: comprise the following steps:
(1) dehumidifying: by copper material to be processed, dehumidify, drying and processing;
(2) cooling: the copper material after drying is placed in deep freeze refrigeration plant, utilizes computer to control deep freeze refrigeration plant, temperature linearity is declined, reduction of speed is 0.5～1 ℃/min, is down to-190～-196 ℃ from normal temperature;
(3) insulation: be incubated >=2 hours according to material size at-190～-196 ℃;
(4) heat up: with equalization cycle mode linearity, slowly temperature is risen back to normal temperature.
Finally it should be noted that: above-described embodiment is only for example of the present invention is clearly described; and the not restriction to embodiment; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here exhaustive without also giving all embodiments; and apparent variation or the change of being amplified out thus, still among protection scope of the present invention.
Claims (1)
1. a cryogenic treatment process for copper material, is characterized in that: comprise the following steps:
(1) dehumidifying: by copper material to be processed, dehumidify, drying and processing;
(2) cooling: the copper material after drying is placed in deep freeze refrigeration plant, utilizes computer to control deep freeze refrigeration plant, temperature linearity is declined, reduction of speed is 0.5～1 ℃/min, is down to-190～-196 ℃ from normal temperature;
(3) insulation: be incubated >=2 hours according to material size at-190～-196 ℃;
(4) heat up: with equalization cycle mode linearity, slowly temperature is risen back to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647017.1A CN103614677A (en) | 2013-12-06 | 2013-12-06 | Subzero treatment process of copper material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647017.1A CN103614677A (en) | 2013-12-06 | 2013-12-06 | Subzero treatment process of copper material |
Publications (1)
| Publication Number | Publication Date |
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| CN103614677A true CN103614677A (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310647017.1A Pending CN103614677A (en) | 2013-12-06 | 2013-12-06 | Subzero treatment process of copper material |
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| CN (1) | CN103614677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048689A (en) * | 2020-09-16 | 2020-12-08 | 扬州大学 | Heat treatment method of welding nozzle |
| CN113046543A (en) * | 2021-03-16 | 2021-06-29 | 舜仕(深圳)科技有限公司 | Wire freezing method |
Citations (8)
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| CN1352320A (en) * | 2001-10-16 | 2002-06-05 | 甘肃工业大学 | Cryogenic treatment process for copper alloy band |
| CN1435506A (en) * | 2002-01-30 | 2003-08-13 | 天津大学 | Method for cryogenic treatment of aluminium alloy resistance spot welding electrode |
| CN1435505A (en) * | 2002-01-30 | 2003-08-13 | 天津大学 | Method for cryogenic treatment of galvanized steel sheet resistance spot welding electrode |
| KR20050119046A (en) * | 2004-06-15 | 2005-12-20 | 한국기계연구원 | Process of equal channel angular pressing for workpiece |
| CN101020993A (en) * | 2007-03-14 | 2007-08-22 | 吴永勇 | Cryogenic treating process for aluminium-base, Zinc-base and copper-base axle bush |
| CN102978553A (en) * | 2012-11-28 | 2013-03-20 | 天津美腾铜业有限公司 | Cryogenic treatment process for conductive copper and copper-based alloy material |
| CN102994921A (en) * | 2012-11-26 | 2013-03-27 | 天津大学 | Cryogenic resistance reduction treatment method for copper and copper alloy |
| CN102994920A (en) * | 2012-11-26 | 2013-03-27 | 天津大学 | High and low temperature compound resistance reduction treatment method for copper and copper alloy |
-
2013
- 2013-12-06 CN CN201310647017.1A patent/CN103614677A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352320A (en) * | 2001-10-16 | 2002-06-05 | 甘肃工业大学 | Cryogenic treatment process for copper alloy band |
| CN1435506A (en) * | 2002-01-30 | 2003-08-13 | 天津大学 | Method for cryogenic treatment of aluminium alloy resistance spot welding electrode |
| CN1435505A (en) * | 2002-01-30 | 2003-08-13 | 天津大学 | Method for cryogenic treatment of galvanized steel sheet resistance spot welding electrode |
| KR20050119046A (en) * | 2004-06-15 | 2005-12-20 | 한국기계연구원 | Process of equal channel angular pressing for workpiece |
| CN101020993A (en) * | 2007-03-14 | 2007-08-22 | 吴永勇 | Cryogenic treating process for aluminium-base, Zinc-base and copper-base axle bush |
| CN102994921A (en) * | 2012-11-26 | 2013-03-27 | 天津大学 | Cryogenic resistance reduction treatment method for copper and copper alloy |
| CN102994920A (en) * | 2012-11-26 | 2013-03-27 | 天津大学 | High and low temperature compound resistance reduction treatment method for copper and copper alloy |
| CN102978553A (en) * | 2012-11-28 | 2013-03-20 | 天津美腾铜业有限公司 | Cryogenic treatment process for conductive copper and copper-based alloy material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048689A (en) * | 2020-09-16 | 2020-12-08 | 扬州大学 | Heat treatment method of welding nozzle |
| CN113046543A (en) * | 2021-03-16 | 2021-06-29 | 舜仕(深圳)科技有限公司 | Wire freezing method |
| CN113046543B (en) * | 2021-03-16 | 2022-11-22 | 舜仕(深圳)科技有限公司 | Wire freezing method |
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Application publication date: 20140305 |
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