CN210188413U - Efficient heat dissipation core pin - Google Patents
Efficient heat dissipation core pin Download PDFInfo
- Publication number
- CN210188413U CN210188413U CN201921179999.5U CN201921179999U CN210188413U CN 210188413 U CN210188413 U CN 210188413U CN 201921179999 U CN201921179999 U CN 201921179999U CN 210188413 U CN210188413 U CN 210188413U
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- CN
- China
- Prior art keywords
- head
- pin head
- pin
- extension
- round pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 7
- 229910002804 graphite Inorganic materials 0.000 abstract description 6
- 239000010439 graphite Substances 0.000 abstract description 6
- -1 graphite alkene Chemical class 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005266 casting Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 150000001721 carbon Chemical group 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a high-efficient heat dissipation core round pin, including round pin head, extension, tail step, plunger head, round pin head diameter ratio extension is little, and the size matches with the hole of waiting to process, the extension with the round pin head is connected, the end of extension is provided with the tail step that the diameter is bigger, extension and tail step are fixed in the die holder of mould, the round pin head stretches out the die holder, round pin head, extension, tail step are as an organic whole, and central processing has the cooling blind hole, pack graphite alkene powder in the cooling blind hole, the plunger head is screwed up at the end of cooling blind hole, the plunger head other end contacts with the die carrier. In order to prevent heat concentration and improve strength, the front end of the pin head is hemispherical. The utility model discloses the cooling effect is fabulous, and the simultaneous production processing is convenient, and the processing cost is low, and long service life does not occupation space, can apply to complicated mould, and application scope is wide.
Description
Technical Field
The utility model belongs to the mould field, concretely relates to high-efficient heat dissipation core round pin.
Background
The core pin is used for casting a mould and is a part forming a hole-shaped space of a product, and in the casting process, the core pin is matched with the convex-concave mould to form a bulge, and the bulge is drawn away after the molten metal liquid is cooled to form a hole. In the casting production, the regulation and control of the mold temperature are very important, because the core pin is always in contact with the molten metal, the shape is long and thin, the heat is easy to concentrate, when the temperature is too high, bubbles are easy to appear in the product, and the core pin is adhered to the cooled molten metal such as aluminum liquid, so that the quality of the hole is poor. The core pin is cooled by a partition plate type cooling method, a blind hole is formed in the center of the core pin, and a partition plate is arranged in the blind hole. The working process is as follows: the cooling water flows in from the water inlet, flows to the top end of the core along one side of the partition plate for cooling, and then flows to the water outlet from the other side of the partition plate, and the heat is rapidly discharged along with the circulating flow of the cooling water, so that the purpose of cooling the core is achieved.
At present, along with the improvement of the complexity of a casting mold, a cooling water path is easy to interfere with other components of the mold, such as a position of a core pin to be taken away by the water path, a thimble is just arranged, and the thimble cannot be cancelled; meanwhile, the water circulation system is greatly influenced by water temperature and flow velocity, and if water is cut off, products and core pins are easily damaged, and the stability is not high.
SUMMERY OF THE UTILITY MODEL
The aforesaid that exists to prior art is not enough, the to-be-solved technical problem of the utility model is that the core round pin adopts hydrologic cycle, needs occupation space, and the structure is complicated, can't dispose on some moulds, and hydrologic cycle cooling receives the water route operation situation to influence simultaneously, and is unstable.
In order to solve the technical problem, the utility model discloses a following technical scheme: an efficient heat dissipation core pin comprises a pin head, an extension part, a tail step and a plunger head,
the pin head is smaller in diameter than the extension part, the size of the pin head is matched with a hole to be processed, the extension part is connected with the pin head, the tail end of the extension part is provided with a tail step with a larger diameter,
the extension part and the tail step are fixed in a die holder of the die, the pin head extends out of the die holder,
the pin head, the extending part and the tail step are integrated, a cooling blind hole is machined in the center of the pin head, graphene powder is filled in the cooling blind hole, the plunger head is screwed at the tail end of the cooling blind hole, and the other end of the plunger head is in contact with the die carrier.
Further, the plunger head is made of beryllium copper.
Further, in order to prevent heat concentration and improve strength, the front end of the pin head is hemispherical.
Further, the extension and the pin head are in a transition by an oblique angle.
Further, the plunger head is subjected to quenching and tempering treatment, and the hardness is HRC 35-45 degrees.
Further, the diameter of the blind cooling hole is 1/4-2/3 of the diameter of the pin head.
The utility model has the advantages that:
1. an auxiliary cooling structure is not required to be added, the space is not occupied, the die can be applied to a complex die, and the application range is wide;
2. the graphene material with excellent heat conductivity is utilized, the transfer delay of temperature is low, heat is conducted to the die carrier with fast heat dissipation and large contact area, heat concentration is avoided, and the quality of a formed pore channel is good;
3. the production and processing are convenient, the processing cost is low, and the service life is long.
Drawings
Fig. 1 is a schematic side view of the high-efficiency heat dissipation core pin of the present invention.
In the figure: 1. a pin head; 2. an extension; 3. graphene powder; 4. a plunger head; 5. a mold frame; 6. cooling the blind holes; 7. a tail step.
Detailed Description
The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.
As shown in fig. 1, 1. a high-efficiency heat-dissipation core pin comprises a pin head 1, an extension part 2, a tail step and a plunger head 4,
the diameter of the pin head 1 is smaller than that of the extension part 2, the size of the pin head is matched with that of a hole to be processed, the extension part 2 is connected with the pin head 1, the tail end of the extension part 2 is provided with a tail step with a larger diameter,
the extension part 2 and the tail step are fixed in a die holder of the die, the pin head 1 extends out of the die holder,
the pin head 1, the extension part 2 and the tail step are integrated, a cooling blind hole 6 is machined in the center, graphene powder 3 is filled in the cooling blind hole 6, the plunger head 4 is screwed at the tail end of the cooling blind hole 6, and the other end of the plunger head 4 is in contact with the die carrier 5.
In practical application, the plunger head 4 is made of a metal material, preferably beryllium copper, and the hardness of the plunger head 4 is HRC 35-45 degrees after quenching and tempering.
In practical application, the front end of the pin head 1 is hemispherical in order to prevent heat concentration and improve strength.
In practice, the extension 2 and the pin head 1 are in a transition by means of an oblique angle.
In practical application, the diameter of the blind cooling hole 6 is 1/4-2/3 of the diameter of the pin head 1.
The principle of the utility model is that:
some complicated moulds do not have spatial arrangement circulation water route, adopt the utility model discloses a design, packing graphite alkene powder 3 in cooling blind hole 6, the structure of graphite alkene is very stable, and connection between the inside carbon atom of graphite alkene is very pliable and tough, and when applying external force in graphite alkene, the carbon atom face can bending deformation for carbon atom needn't rearrange and adapt to external force, thereby keeps stable in structure, and this kind of stable lattice structure makes graphite alkene have outstanding heat conductivity. Since graphene has very good thermal conductivity, the thermal conductivity of pure defect-free single-layer graphene is as high as 5300W/mK, and the graphene is the carbon material with the highest thermal conductivity so far.
The beryllium copper plunger head 4 is used for sealing the graphene powder 3, and meanwhile, the beryllium copper plunger head 4 is used as a heat dissipation connecting piece to be fixed on the die carrier 5, so that the contact area of the die carrier 5 and air is large, and the heat dissipation effect is good.
To sum up, the utility model discloses the cooling effect is fabulous, and it is convenient to produce the processing simultaneously, and the processing cost is low, and long service life does not occupation space, can apply to complicated mould, and application scope is wide.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.
Claims (6)
1. A high-efficiency heat-dissipation core pin, which comprises a pin head (1), an extension part (2), a tail step and a plunger head (4),
the diameter of the pin head (1) is smaller than that of the extension part (2), the size of the pin head is matched with that of a hole to be processed, the extension part (2) is connected with the pin head (1), the tail end of the extension part (2) is provided with a tail step with a larger diameter,
the extension part (2) and the tail step are fixed in a die holder of the die, the pin head (1) extends out of the die holder,
the pin head (1), the extension part (2) and the tail step are integrated, a cooling blind hole (6) is machined in the center, graphene powder (3) is filled in the cooling blind hole (6), the plunger head (4) is screwed at the tail end of the cooling blind hole (6), and the other end of the plunger head (4) is in contact with the die carrier (5).
2. A high efficiency heat dissipating core pin in accordance with claim 1, wherein: the plunger head (4) is made of beryllium copper.
3. A high efficiency heat dissipating core pin in accordance with claim 2, wherein: and the plunger head (4) is subjected to quenching and tempering, and the hardness is HRC 35-45 degrees.
4. A high efficiency heat dissipating core pin in accordance with claim 1, wherein: the front end of the pin head (1) is hemispherical.
5. A high efficiency heat dissipating core pin in accordance with claim 1, wherein: the extension part (2) and the pin head (1) are in transition through an oblique angle.
6. A high efficiency heat dissipating core pin in accordance with any one of claims 1 to 5, wherein: the diameter of the blind cooling hole (6) is 1/4-2/3 of the diameter of the pin head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921179999.5U CN210188413U (en) | 2019-07-25 | 2019-07-25 | Efficient heat dissipation core pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921179999.5U CN210188413U (en) | 2019-07-25 | 2019-07-25 | Efficient heat dissipation core pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210188413U true CN210188413U (en) | 2020-03-27 |
Family
ID=69868465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921179999.5U Expired - Fee Related CN210188413U (en) | 2019-07-25 | 2019-07-25 | Efficient heat dissipation core pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210188413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280724A (en) * | 2019-07-25 | 2019-09-27 | 盐城泰欧昌机械有限公司 | A kind of high efficiency and heat radiation core pins |
-
2019
- 2019-07-25 CN CN201921179999.5U patent/CN210188413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280724A (en) * | 2019-07-25 | 2019-09-27 | 盐城泰欧昌机械有限公司 | A kind of high efficiency and heat radiation core pins |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 |