CN203608498U - Mandrel for forming heat tubes - Google Patents
Mandrel for forming heat tubes Download PDFInfo
- Publication number
- CN203608498U CN203608498U CN201320409509.2U CN201320409509U CN203608498U CN 203608498 U CN203608498 U CN 203608498U CN 201320409509 U CN201320409509 U CN 201320409509U CN 203608498 U CN203608498 U CN 203608498U
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- plug
- utility
- cylinder part
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- mandrel
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Abstract
The utility model discloses a mandrel for forming heat tubes, which comprises a longwise extending ceramic rod body, and a conical positioning part at least arranged at the tail end of the ceramic rod body. According to the technical scheme of the utility model, the ceramic material does not easily stick to copper powders during the sintering process and is high-temperature-resistant, so that the service life of the mandrel is prolonged. The manufacturing cost of heat tube is reduced. Meanwhile, the ceramic rod body is composed of a first cylindrical portion and a second cylindrical portion, wherein the two cylindrical portions are varied in diameter. In this way, after the sintering process of heat tubes, the sintered mandrel can be easily drawn out. Therefore, the production efficiency is improved and the quality of heat tubes is also improved.
Description
Technical field
The utility model relates to forming heat pipe tool, is specifically related to a kind of plug for forming heat pipe.
Background technology
Heat pipe is the heat abstractor of electronic component in a kind of computer, its mainly comprise hollow shell, be close to the capillary wick of inner wall of tube shell and be sealed in the heat-conducting liquid in shell, it is by the high thermal conductivity of copper pipe and the capillary theory of capillary wick, thereby there is higher radiating efficiency, and be mainly used in the heat radiation of electronic component in computer.
In the prior art, the plug of conventionally stainless steel being made inserts in copper pipe.The diameter of plug is slightly less than the internal diameter of copper pipe.Then copper powder is added in the gap in copper pipe and plug, form the capillary wick of tool capillary pipe structure by high temperature sintering.
But, conventionally adopt stainless steel to make for the plug of forming heat pipe at present, only have ten its useful life, thereby cause the manufacturing cost of heat pipe high; Meanwhile, copper pipe inserts after plug sintering, and plug can be sintered together with copper powder, causes plug to be difficult to be drawn out of.
In view of this, be necessary the plug for forming heat pipe of the prior art to be improved, to address the above problem.
Utility model content
The purpose of this utility model is to provide a kind of useful life longer plug, in order to reduce the manufacturing cost of heat pipe; Prevent from sticking together after plug and copper powder sintering simultaneously, be convenient to the extraction of plug after sintering, enhance productivity, improve the quality of heat pipe.
For achieving the above object, the utility model provides a kind of plug for forming heat pipe, comprising:
Be the ceramic body of rod that lengthwise extends, and be at least arranged on described ceramic body of rod end and be conical location division, any cross section of the described ceramic body of rod is circle, the tapering of described location division is 0.35～1, and the described ceramic body of rod comprises the first cylinder part, the second cylinder part and connects the connecting portion of described the first cylinder part and the second cylinder part.
As further improvement of the utility model, the diameter of described the first cylinder part is less than the diameter of described the second cylinder part.
As further improvement of the utility model, the tapering of described connecting portion is 0.15.
As further improvement of the utility model, the end of described location division is also provided with a plane.
Compared with prior art, the beneficial effects of the utility model are: by pottery is difficult for and copper powder sticks together in sintering process characteristic and resistant to elevated temperatures characteristic, extended the useful life of plug, by the manufacturing cost of heat pipe; The first cylinder part and the second cylinder part that change by the ceramic body of rod being arranged to diameter simultaneously, thus after heat pipe sintering, make this plug easily be drawn out of after sintering, improve production efficiency, improve the quality of heat pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of plug for forming heat pipe of the utility model;
Fig. 2 is the partial enlarged drawing that in Fig. 1, label is A.
Embodiment
Below in conjunction with each execution mode shown in the drawings, the utility model is elaborated; but should be noted that; these execution modes are not limitation of the utility model; those of ordinary skills are according to these execution mode institute work energy, method or structural equivalent transformation or alternative, within all belonging to protection range of the present utility model.
Shown in please refer to the drawing 1, Fig. 1 is the structural representation of a kind of plug for forming heat pipe of the utility model.In the present embodiment, a kind of plug 100 for forming heat pipe, comprises; Be the ceramic body of rod 10 that lengthwise extends, and be at least arranged on the described ceramic body of rod 10 ends and be conical location division 20.Any cross section of the described ceramic body of rod 10 is circle.
Concrete, this plug 100 is formed through the high temperature sintering of 1600 degrees Celsius by the zirconia of 94wt% and the aluminium oxide of 6wt%.The plug utilization pottery of ceramic material is difficult for the characteristic and the resistant to elevated temperatures characteristic that in sintering process, stick together with copper powder, has extended the useful life of plug.In the utility model, reach the useful life of this plug 100 500 to 1000 times, far away higher than 10 to 50 useful lifes of stainless steel plug in prior art, thereby reduce the manufacturing cost of heat pipe.
Concrete, in the present embodiment, the described ceramic body of rod 10 comprises the first cylinder part 101, the second cylinder part 102 and connects the connecting portion 103 of described the first cylinder part 101 and the second cylinder part 102.The diameter of described the first cylinder part 101 is less than the diameter of described the second cylinder part 102.By the structure of diameter generation gradual change, make plug 100 put into copper pipe (not shown) thereby and add copper powder to carry out sintering to form after heat pipe, be more prone to this plug 100 to extract out from heat pipe, prevent that this plug 100 from destroying capillary wick (not shown), thereby improved the product quality of heat pipe.
In the present embodiment, the tapering C of described location division 20 is 0.35～1, and is preferably 0.45; The tapering C ' of described connecting portion 103 is 0.15.
Meanwhile, be also provided with a plane 201 at the end of described location division 20.Can play and the effect of the plane positioning of unsintered copper pipe bottom by this plane 201, prevent that plug 100 is in the inner run-off the straight of copper pipe, the wall thickness of capillary wick be realized and be uniformly distributed.
Listed a series of detailed description is above only illustrating for feasibility execution mode of the present utility model; they are not in order to limit protection range of the present utility model, all do not depart from the equivalent execution mode that the utility model skill spirit does or change and all should be included in protection range of the present utility model within.
In addition, be to be understood that, although this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (4)
1. the plug for forming heat pipe (100), is characterized in that, comprising:
Be the ceramic body of rod (10) that lengthwise extends, and be at least arranged on the described ceramic body of rod (10) end and be conical location division (20), any cross section of the described ceramic body of rod (10) is circle, the tapering of described location division (20) is 0.35～1, and the described ceramic body of rod (10) comprises the first cylinder part (101), the second cylinder part (102) and connects described the first cylinder part (101) and the connecting portion (103) of the second cylinder part (102).
2. plug according to claim 1, is characterized in that, the diameter of described the first cylinder part (101) is less than the diameter of described the second cylinder part (102).
3. plug according to claim 1, is characterized in that, the tapering of described connecting portion (103) is 0.15.
4. plug according to claim 1, is characterized in that, the end of described location division (20) is also provided with a plane (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320409509.2U CN203608498U (en) | 2013-07-11 | 2013-07-11 | Mandrel for forming heat tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320409509.2U CN203608498U (en) | 2013-07-11 | 2013-07-11 | Mandrel for forming heat tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203608498U true CN203608498U (en) | 2014-05-21 |
Family
ID=50721151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320409509.2U Expired - Fee Related CN203608498U (en) | 2013-07-11 | 2013-07-11 | Mandrel for forming heat tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203608498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690545A (en) * | 2016-04-07 | 2016-06-22 | 广州三环新材料有限责任公司 | Core and ceramic core inserting mold with core |
| CN110319722A (en) * | 2019-07-31 | 2019-10-11 | 东莞市沐源不锈钢有限公司 | Plug and preparation method thereof in a kind of stainless steel |
| CN114674167A (en) * | 2022-03-21 | 2022-06-28 | 太仓欣华盈电子有限公司 | Expanding mandrel |
-
2013
- 2013-07-11 CN CN201320409509.2U patent/CN203608498U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105690545A (en) * | 2016-04-07 | 2016-06-22 | 广州三环新材料有限责任公司 | Core and ceramic core inserting mold with core |
| CN105690545B (en) * | 2016-04-07 | 2018-11-16 | 潮州三环（集团）股份有限公司 | A kind of type core and the ceramic insertion core mold containing the type core |
| CN110319722A (en) * | 2019-07-31 | 2019-10-11 | 东莞市沐源不锈钢有限公司 | Plug and preparation method thereof in a kind of stainless steel |
| CN114674167A (en) * | 2022-03-21 | 2022-06-28 | 太仓欣华盈电子有限公司 | Expanding mandrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20200711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |