CN103074513B - Heat-pipe-use material, and preparation method and application thereof - Google Patents
Heat-pipe-use material, and preparation method and application thereof Download PDFInfo
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- CN103074513B CN103074513B CN201210060319.4A CN201210060319A CN103074513B CN 103074513 B CN103074513 B CN 103074513B CN 201210060319 A CN201210060319 A CN 201210060319A CN 103074513 B CN103074513 B CN 103074513B
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- heat pipe
- zirconium
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Abstract
The invention is suitable for the technical field of heat pipes, and provides a heat-pipe-use material, a preparation method thereof, and an application thereof. The preparation method of the heat-pipe-use material comprises the steps of electrolytic copper melting, molten copper transferring, molten copper refining and temperature maintaining, condensation casting, and the like. According to the heat-pipe-use material preparation method provided by the invention, zirconium element is introduced into the preparation process, such that heat-pipe-use material grain size is greatly improved. According to the heat-pipe-use material provided by the invention, material grain size is improved by using the zirconium element, such that processing performance and appearance of the heat-pipe-use material are substantially improved.
Description
Technical field
The invention belongs to hot pipe technique field, particularly relate to a kind of heat pipe material, its preparation method and application.
Background technology
Existing normal temperature heat pipe (30-250 DEG C) is concentrated with the material of tubing and is adopted high-purity oxygen-free copper (GB TU2 or TU1, the C1020 of similar Nippon Standard JISH) pipe.The heat conductivility excellent due to this metal trade mark and high purity inclusion-free, can keep not losing efficacy for a long time at the working temperature, praised highly as only selection by industry.The chemical composition of this metal trade mark is as follows:
Although this metal trade mark was applied for two more than ten years by heat pipe industry, be especially used in IT industry.If but carry out sintered heat pipe with oxygen free copper smooth tubes (containing internal surface fluted tube), due to sintering temperature high (950-990 DEG C), crystal grain often grows too fast, metal inside is caused to organize overheated or burning, greatly reduce process industrial art performance, the forming process such as to bend, flatten to heat pipe and bring many quality problems, the coarse peeling in bending rear surface, depression after flattening, affect outward appearance and reduce its heat pipe power-performance, even curved splitting causes heat pipe failure etc., reduces heat pipe lumber recovery.In addition, because after traditional oxygenless copper material sintering, crystal grain is abnormal thick, surface hardness is low, also can bring heat pipe difficulty of processing, as problems such as the flexible discounting of draw process.
Summary of the invention
In view of this, the invention provides a kind of heat pipe material preparation method, solve that the prior art heat pipe outward appearance of producing is coarse, the technical problem of poor processability.
The present invention is achieved in that
A preparation method for heat pipe material, comprises the steps:
Electrolytic copper melting unit is melted, obtains electrolytic copper melting copper water;
Described electrolytic copper melting copper water is transferred to casting equipment from melting unit, in electrolytic copper melting copper water, zirconium copper alloy is added in described transfer step, obtain the melting copper water containing zirconium, in described zirconium copper alloy, the massfraction of zirconium is 5 ~ 35%, and described is 2 ~ 48ppm containing the massfraction of zirconium in the melting copper water of zirconium;
The described melting copper water condensation containing zirconium is cast as heat pipe material.
The present invention further provides the preparation-obtained heat pipe material of aforesaid method, this heat pipe material comprises electrolytic copper, also comprises zirconium, and the massfraction of this zirconium is 2 ~ 48ppm.
The present invention further provides the application of above-mentioned heat pipe material in heat pipe.
The preparation method of heat pipe material of the present invention, by introducing zr element in preparation process, substantially improves the grain fineness number of heat pipe material; Heat pipe material of the present invention, improves the grain fineness number of material by zr element, make heat pipe Drawing abillity obtain remarkable lifting, outward appearance be improved significantly.
Accompanying drawing explanation
Fig. 1 is the grain fineness number comparison diagram of the heat pipe material of embodiment of the present invention production and the heat resistant material of prior art production;
Fig. 2 is the heat pipe material of embodiment of the present invention production and the figure of the tube surface hardness balance prepared by heat resistant material of prior art production;
Fig. 3 is the heat pipe material of embodiment of the present invention production and the tube surface slickness comparison diagram prepared by heat resistant material of prior art production;
Fig. 4 is the heat pipe material surface conditions figure prepared by preparation method of embodiment of the present invention heat pipe material;
Fig. 5 is the heat pipe material surface conditions figure that prior art is produced;
The heat pipe cross-sectional view prepared by heat pipe material that Fig. 6 display application embodiment of the present invention is produced;
The heat pipe cross-sectional view prepared by heat resistant material that Fig. 7 display application prior art is produced.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of heat pipe material preparation method, comprises the steps:
Step S01, fusing electrolytic copper
Electrolytic copper melting unit is melted, obtains electrolytic copper melting copper water;
Step S02, preparation is containing the electrolytic copper melting copper water of zirconium
Described electrolytic copper melting copper water is transferred to casting equipment from melting unit, in electrolytic copper melting copper water, zirconium copper alloy is added in described transfer step, obtain the melting copper water containing zirconium, in described zirconium copper alloy, the massfraction of zirconium is 5 ~ 35%, and described is 2 ~ 48ppm containing the massfraction of zirconium in the melting copper water of zirconium;
Step S03, condensation is cast
The described melting copper water condensation containing zirconium is cast as heat pipe material.
Particularly, embodiment of the present invention step S01, S02, S03 carry out under anaerobic, this oxygen free condition does not limit, such as electrolytic copper melting copper water surface covers calcining charcoal or dry Graphite Powder 99, logical nitrogen realization etc., and embodiment of the present invention preparation method preparation-obtained heat pipe material belongs to special oxygen free copper.Particularly, in step S01, the catholyte copper that this electrolytic copper obtains after referring to electrorefining is such as Cu-CATH-1 Cu-CATH-1.
This melting unit does not limit, such as smelting furnace, is melted by electrolytic copper by melting unit, obtains electrolytic copper melting copper water.
Particularly, in step S02, this casting equipment does not limit, such as, and foundry furnace.
Preferably, be provided with a chute between this melting unit and casting equipment, smelting furnace is communicated with foundry furnace by this chute.This chute makes the electrolytic copper melting copper water in melting unit pour in this chute, and electrolytic copper melting copper water enters in foundry furnace by this chute, completes electrolytic copper melting copper water from smelting furnace to the transfer of foundry furnace.
In step S02, before pour electrolytic copper melting copper water in chute or among, in chute, place zirconium copper alloy, zirconium copper alloy, through chute, melts by electrolytic copper melting copper water, obtains the electrolytic copper melting copper water containing zirconium, then enters together in foundry furnace.In this zirconium copper alloy, the massfraction of zirconium is 5-35%, such as, and 10%, 15%, 20%, 30% etc.The add-on of this zirconium copper alloy is 2 ~ 48ppm (hundred is several very much) according to the massfraction of zirconium in the electrolytic copper melting copper water containing zirconium, such as, and 20ppm, 30ppm, 45ppm.
Further, this zirconium copper alloy adds several times, preferably 2 ~ 10 times, such as 5 times, 8 inferior.The quality once needing the electrolytic copper melting copper water to foundry furnace transfer is a, determine that the zirconium copper alloy quality needing to add is b through calculating, can be added in electrolytic copper melting copper water by disposable for the zirconium copper alloy of b quality, also can be divided into and adding for 2 ~ 10 times, the amount at every turn added does not limit.By adding several times, zirconium can be made fully to disperse in electrolytic copper melting copper water, finally make the grain fineness number of material effectively be improved.
Particularly, in step S03, by the electrolytic copper melting copper water condensation containing zirconium in foundry furnace, be cast as copper ingot, namely obtain heat pipe material.The speed of this step condenses casting starts with minimum speed, and the copper ingot base surface quality situation according to casting determines whether progressively promote casting speed; In order to reduce casting mould plug-hole risk, casting nib can suitably strengthen, and reduces plug-hole chance;
If the defect such as cold shut, pore appears in surface in castingprocesses, can take to stop casting leaving standstill for some time method, like this, temporary plug after the slag of casting nib floats, casting can be restarted, like this, the Production Life of casting die can be extended.
Further, the copper ingot prepared by step S03 is processed into the oxygen-free copper pipe (or fluted tube) needing specification, with this material production sintered heat pipe (containing compound or half multiple-unit tube) through extruding or continuous casting and rolling pressure processing method
Embodiment of the present invention heat pipe material preparation method, by adding zirconium copper alloy in electrolytic copper melting copper water, zirconium is introduced in electrolytic copper melting copper water, electrolytic copper melting copper water condensation forming core crystallization in condensation casting step, at intra-die, there is compound that zirconium atom and zirconium and minute quantity impurity element (lead, bismuth etc.) are formed in lattice, at crystal boundary, there is the compound that zirconium and minute quantity impurity element (lead, bismuth etc.) are formed, hinder dislocation moving ability comparatively strong, cast structure's crystallite size can be reduced.
Apply in this heat pipe material sintering process, also due to: increase nucleation rate simultaneously, intra-die after forming core is grown up, have compound that zirconium atom and zirconium and minute quantity impurity element (lead, bismuth etc.) are formed in lattice; At crystal boundary, there is the compound that zirconium and minute quantity impurity element (lead, bismuth etc.) are formed, the inside and outside dislocation moving ability that hinders of crystal grain is stronger, obstruction crystal grain increases, greatly improve the crystallization effect of heat pipe material, achieve, by the heat pipe prepared by this heat pipe material, there is excellent outward appearance, good processing characteristics; Simultaneously due to the improvement of grain fineness number, achieve, by the heat pipe prepared by this heat pipe material, there is excellent physical strength.
Refer to Fig. 1, Fig. 1 is the grain fineness number comparison diagram of the heat pipe material of embodiment of the present invention production and the heat resistant material of prior art production, as can be seen from Figure 1, heat pipe prepared by the embodiment of the present invention with material grains degree between 0.080 ~ 0.100mm, particle diameter is little and rangeability is narrow, and the heat resistant material grain fineness number that prior art is produced is between 0.120 ~ 0.180mm, particle diameter is comparatively large and rangeability is wider, alternatively bright thus, the grain fineness number of the heat pipe material prepared by the embodiment of the present invention obtains obvious improvement;
Refer to 2, Fig. 2 shows the heat pipe material of embodiment of the present invention production and the figure of the tube surface hardness balance prepared by heat resistant material of prior art production, as can be seen from Figure 2, heat pipe material hardness prepared by the embodiment of the present invention is between HV40.5 ~ 42, hardness is comparatively large, and the heat resistant material hardness that prior art is produced is between HV38.9 ~ 39.8, and hardness is lower, alternatively bright thus, the hardness of the heat pipe material prepared by the embodiment of the present invention obtains obvious improvement;
Refer to Fig. 3, the heat pipe material that Fig. 3 display application embodiment of the present invention is produced and the tube surface slickness comparison diagram prepared by heat resistant material that prior art is produced, as can be seen from Figure 3, the tube surface prepared by heat pipe material prepared by the embodiment of the present invention is smooth, smooth, and the tube surface prepared by heat resistant material that prior art is produced is coarse, there is depression, alternatively bright thus, slickness, the outward appearance of the heat pipe material prepared by the embodiment of the present invention obtain obvious improvement;
Refer to Fig. 4 and Fig. 5, Fig. 4 is the heat pipe material surface conditions figure prepared by preparation method of embodiment of the present invention heat pipe material, Fig. 5 is the heat pipe material surface conditions figure that prior art is produced, as can be seen from Fig. 4 and Fig. 5, careful many of the heat pipe material surface produced than conventional art of heat pipe material prepared by the embodiment of the present invention, gap between crystal grain and crystal grain is less, illustrates that the grain fineness number of the heat pipe material prepared by the embodiment of the present invention obtains obvious improvement;
Refer to Fig. 6 and Fig. 7, the heat pipe cross-sectional view prepared by heat pipe material that Fig. 6 display application embodiment of the present invention is produced, the heat pipe cross-sectional view prepared by heat resistant material that Fig. 7 display application prior art is produced, as can be seen from Fig. 6 and Fig. 7, careful many in the heat pipe vertical section that produces than conventional art of heat pipe material prepared by the embodiment of the present invention, comprise more crystal grain, gap between crystal grain and crystal grain is less, illustrates that the grain fineness number of the heat pipe material prepared by the embodiment of the present invention obtains obvious improvement;
The embodiment of the present invention provides a kind of heat pipe material further, and this heat pipe material comprises electrolytic copper, also comprises zirconium, and the massfraction of this zirconium is 2 ~ 48ppm.Embodiment of the present invention heat pipe material has prepared by above-mentioned heat pipe material preparation method and obtains.
Embodiment of the present invention heat pipe material, owing to adding zirconium, at intra-die, the compound that zirconium atom and zirconium and minute quantity impurity element (lead, bismuth etc.) are formed is present in lattice, at the compound that crystal boundary has zirconium and minute quantity impurity element (lead, bismuth etc.) to be formed, therefore dislocation moving is hindered inside and outside crystal grain, hinder grain growth, crystallite size can be reduced, greatly improve the crystallization effect of heat pipe material, achieve, by the heat pipe prepared by this heat pipe material, there is excellent outward appearance, good processing characteristics; Simultaneously due to the improvement of grain fineness number, achieve, by the heat pipe prepared by this heat pipe material, there is excellent physical strength.
The present invention further provides the application of above-mentioned heat pipe material in heat pipe.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a preparation method for heat pipe material, comprises the steps:
Electrolytic copper melting unit is melted under anaerobic, obtains electrolytic copper melting copper water;
Described electrolytic copper melting copper water is transferred to casting equipment from melting unit, in electrolytic copper melting copper water, zirconium copper alloy is added in described transfer step, obtain the melting copper water containing zirconium, in described zirconium copper alloy, the massfraction of zirconium is 5 ~ 35%, and described is 2 ~ 48ppm containing the massfraction of zirconium in the melting copper water of zirconium;
The described melting copper water condensation containing zirconium is cast as heat pipe material;
Described zirconium copper alloy divides 1 ~ 10 time and adds.
2. the preparation method of heat pipe material as claimed in claim 1, it is characterized in that, be communicated with chute between described melting unit and casting equipment, described electrolytic copper melting copper water is transferred to casting equipment from melting unit by described chute.
3. the heat pipe material for preparing of the preparation method of a heat pipe material according to claim 1 and 2.
4. the application of heat pipe material in heat pipe as claimed in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210060319.4A CN103074513B (en) | 2012-03-08 | 2012-03-08 | Heat-pipe-use material, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210060319.4A CN103074513B (en) | 2012-03-08 | 2012-03-08 | Heat-pipe-use material, and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN103074513A CN103074513A (en) | 2013-05-01 |
| CN103074513B true CN103074513B (en) | 2015-06-10 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4951517B2 (en) * | 2005-09-30 | 2012-06-13 | 三菱伸銅株式会社 | Melt-solidified product, copper alloy material for melt-solidification, and method for producing the same |
| JP5260109B2 (en) * | 2007-03-31 | 2013-08-14 | 株式会社コベルコ マテリアル銅管 | Copper alloy member and heat exchanger |
| CN100587091C (en) * | 2008-09-12 | 2010-02-03 | 邢台鑫晖铜业特种线材有限公司 | Cu-Cr-Zr alloy preparation process for contact wire |
| JP5534777B2 (en) * | 2009-10-28 | 2014-07-02 | 株式会社Ｕａｃｊ | Copper alloy seamless pipe |
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Effective date of registration: 20171227 Address after: 528400 Ma Xin industrial district, Whampoa Town, Zhongshan, Guangdong Province, Xingpu Road East Patentee after: Super superconducting technology (Zhongshan) Co., Ltd. Address before: 528429 Ma Xin Industrial Zone, Huang Zhen Town, Zhongshan, Guangdong Patentee before: Special heat transfer technology (Zhongshan) Co., Ltd. |
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Granted publication date: 20150610 Termination date: 20190308 |