CN202291362U - Riser tube for die casting - Google Patents
Riser tube for die casting Download PDFInfo
- Publication number
- CN202291362U CN202291362U CN2011203648535U CN201120364853U CN202291362U CN 202291362 U CN202291362 U CN 202291362U CN 2011203648535 U CN2011203648535 U CN 2011203648535U CN 201120364853 U CN201120364853 U CN 201120364853U CN 202291362 U CN202291362 U CN 202291362U
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- Prior art keywords
- pipe
- stalk
- die casting
- tube
- casting according
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Abstract
The utility model discloses a riser tube for die casting, which includes an upper tube and a lower tube, wherein the upper and the lower tubes are in threaded connection and identical in inner diameter; the upper tube is a metal tube; and the lower tube is a silicon carbide ceramic tube. The riser tube for die casting can have the expected intensity, as well as excellent bearing capacity and wear resisting property, and can effectively avoid unfavorable chemical reaction between the metal tube and molten metal as the silicon carbide ceramic tube and a high-temperature resistance material layer can excellently prevent molten metal from permeating into the metal tube.
Description
Technical field
The utility model relates to the die casting field, particularly relates to a kind of stalk that is used for die casting.
Background technology
In the process of making the foundry goods such as wheel hub, can adopt stalk to carry out die casting usually.For example; The hypomere immersion of stalk is contained with in the crucible or melting furnace of high-temperature liquid metal (for example, aluminium water), and raising through pressure makes molten metal through being inserted in the stalk in crucible or the melting furnace; Immerse casting mould along the direction opposite, and further pressurize to constitute foundry goods with gravity.
Usually, stalk is formed by the cylindrical element structure of hollow.Comparatively common stalk is divided into two kinds at present: a kind of is by metal metal stalks such as iron, stainless steels, and another kind is by nonmetal nonmetal stalks of processing such as graphite, clays.But these two kinds of stalks all have shortcoming separately.
For the metal stalk; Since the temperature of the molten metal in crucible or the melting furnace often up to 800 ℃ to 1000 ℃, so metal stalk (for example, iron pipe) is if long period of soaking is at high-temperature liquid metal (for example; Aluminium water) in, can cause the metal ingredient of stalk to get into high-temperature liquid metal.If these two kinds of metals are also inequality, will have a strong impact on the quality of product, and stalk itself also can receive very big infringement.In addition, owing to can produce expansion after metal heated, also can exert an influence to the metal stalk.
For nonmetal stalk, because temperature-resistant material weight capacity such as graphite, clay and anti-wear performance are relatively poor, stalk very easily wearing and tearing under the pressure of mould, broken and fracture.In addition, owing to need to adopt special equipment to make nonmetal stalk, its manufacturing cost is also very high.
Therefore, be badly in need of at present with lower cost make a kind of not only had higher firmness but also not can with the stalk of high-temperature liquid metal generation adverse effect.
The utility model content
The technical problem that the utility model mainly solves provides a kind of problem that can overcome the stalk corrosion, prevents that aluminium liquid from increasing iron, has the stalk that is used for die casting of higher weight capacity and wearability.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of stalk that is used for die casting is provided, comprises pipe and following pipe; Said going up managed and managed down through being threaded; Last pipe is consistent with following bore, and the said pipe of going up is metal tube, and said pipe down is silicon carbide ceramic.
In preferred embodiment of the utility model, the said pipe outer wall of going up is provided with one deck exotic material layer.
In preferred embodiment of the utility model, said exotic material layer is a kind of in carborundum films, refractory fiber floor and the cementitious coating.
In preferred embodiment of the utility model, said metal tube is a kind of in stainless steel tube, iron pipe, the steel pipe.
In preferred embodiment of the utility model, the said pipe lower end of going up is provided with external screw thread.
In preferred embodiment of the utility model, said pipe down upper end is the step circular hole, and the step circle hole wall is provided with the internal thread that cooperates with last pipe.
In preferred embodiment of the utility model, said pipe and the following pipe junction water glass capsulation gone up.
The beneficial effect of the utility model is: the stalk that the utility model is used for die casting both can have desired intensity; Can have good weight capacity and anti-wear performance again; In addition; Because silicon carbide ceramic and exotic material layer can prevent well that molten metal from infiltrating through metal tube, therefore can prevent to take place between metal tube and the molten metal disadvantageous chemical reaction effectively.
Description of drawings
Fig. 1 is the perspective view that the utility model is used for stalk one preferred embodiment of die casting;
The mark of each parts is following in the accompanying drawing: 1, go up pipe, 2, pipe down, 3, the exotic material layer.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the utility model embodiment comprises:
A kind of stalk that is used for die casting; Comprise pipe 1 and manage 2 down; Said pipe 1 and the pipe 2 down gone up be through being threaded, on manage 1 with pipe 2 internal diameters are consistent down, it is said that upward to manage 1 be metal tube; Said down pipe 2 is a silicon carbide ceramic, and this silicon carbide ceramic mainly is made up of about 60% carborundum and about 40% silicon nitride.
Said pipe 1 lower end of going up is provided with external screw thread, and said pipe down 2 upper ends are the step circular hole, and about step circle hole depth 100mm, the step circle hole wall is provided with the internal thread that cooperates with last pipe 1, on manage 1 with pipe 2 junction water glass capsulations down, the junction is formed seals.
The said pipe 1 of going up be a kind of in stainless steel tube, iron pipe, the steel pipe, can guarantee that stalk has desired intensity, and be unlikely to when pressurization, to take place broken and rupture.On the other hand; Last pipe 1 outer wall is provided with one deck exotic material layer 3; Said exotic material layer 3 is a kind of in carborundum films, refractory fiber floor and the cementitious coating, can prevent effectively that aluminium water from getting into to go up pipe 1, thereby in proof strength, obtain good weight capacity and anti-wear performance.
The stalk that the utility model is used for die casting both can have desired intensity; Can have good weight capacity and anti-wear performance again; In addition; Because silicon carbide ceramic and exotic material layer 3 can prevent well that molten metal from infiltrating through metal tube, therefore can prevent to take place between metal tube and the molten metal disadvantageous chemical reaction effectively.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (7)
1. stalk that is used for die casting; It is characterized in that: comprise pipe (1) and manage (2) down, said upward pipe (1) and following pipe (2) are through being threaded, and last pipe (1) is consistent with following (2) internal diameter of managing; Said upward pipe (1) is a metal tube, and said pipe (2) down is a silicon carbide ceramic.
2. the stalk that is used for die casting according to claim 1 is characterized in that: said pipe (1) outer wall of going up is provided with one deck exotic material layer (3).
3. the stalk that is used for die casting according to claim 2 is characterized in that: a kind of in carborundum films, refractory fiber floor and the cementitious coating of said exotic material layer (3).
4. the stalk that is used for die casting according to claim 1 is characterized in that: said metal tube is a kind of in stainless steel tube, iron pipe, the steel pipe.
5. the stalk that is used for die casting according to claim 1 is characterized in that: said pipe (1) lower end of going up is provided with external screw thread.
6. the stalk that is used for die casting according to claim 1 is characterized in that: said pipe (2) down upper end is the step circular hole, and the step circle hole wall is provided with the internal thread that cooperates with last pipe (1).
7. the stalk that is used for die casting according to claim 1 is characterized in that: said pipe (1) and following pipe (2) junction water glass capsulation gone up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203648535U CN202291362U (en) | 2011-09-27 | 2011-09-27 | Riser tube for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203648535U CN202291362U (en) | 2011-09-27 | 2011-09-27 | Riser tube for die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202291362U true CN202291362U (en) | 2012-07-04 |
Family
ID=46360342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203648535U Expired - Fee Related CN202291362U (en) | 2011-09-27 | 2011-09-27 | Riser tube for die casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202291362U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103113127A (en) * | 2013-02-28 | 2013-05-22 | 中国科学院宁波材料技术与工程研究所 | Insulated sealed metal gas pipe |
| CN103464723A (en) * | 2013-08-14 | 2013-12-25 | 无锡永兴机械制造有限公司 | Thin twisting blade compressor impeller casting device |
| CN104439160A (en) * | 2014-11-25 | 2015-03-25 | 柳州金特机械有限公司 | Lift tube for casting |
| CN106611895A (en) * | 2015-10-21 | 2017-05-03 | 波音公司 | Whisker reinforced high fracture toughness ceramic tips for radomes |
-
2011
- 2011-09-27 CN CN2011203648535U patent/CN202291362U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103113127A (en) * | 2013-02-28 | 2013-05-22 | 中国科学院宁波材料技术与工程研究所 | Insulated sealed metal gas pipe |
| CN103113127B (en) * | 2013-02-28 | 2014-07-09 | 中国科学院宁波材料技术与工程研究所 | Insulated and sealed metal air tube |
| CN103464723A (en) * | 2013-08-14 | 2013-12-25 | 无锡永兴机械制造有限公司 | Thin twisting blade compressor impeller casting device |
| CN103464723B (en) * | 2013-08-14 | 2015-10-28 | 无锡永兴机械制造有限公司 | Slim twisted blade pressure impeller pouring device |
| CN104439160A (en) * | 2014-11-25 | 2015-03-25 | 柳州金特机械有限公司 | Lift tube for casting |
| CN106611895A (en) * | 2015-10-21 | 2017-05-03 | 波音公司 | Whisker reinforced high fracture toughness ceramic tips for radomes |
| CN106611895B (en) * | 2015-10-21 | 2020-12-18 | 波音公司 | Whisker reinforced high fracture toughness ceramic tip for radome |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120927 |