CN104439160A - Lift tube for casting - Google Patents
Lift tube for casting Download PDFInfo
- Publication number
- CN104439160A CN104439160A CN201410687417.XA CN201410687417A CN104439160A CN 104439160 A CN104439160 A CN 104439160A CN 201410687417 A CN201410687417 A CN 201410687417A CN 104439160 A CN104439160 A CN 104439160A
- Authority
- CN
- China
- Prior art keywords
- casting
- metallic member
- metal liquid
- ceramic segment
- metal
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a lift tube for casting. The lift tube is used for enabling a cavity to be filled with metal liquid in a foundry furnace in the low-pressure casting process so that castings can be formed. The lift tube for casting comprises a ceramic part and a metal part, and the metal part is located on the ceramic part. The lower end of the metal part is connected with the upper end of the ceramic part through threads, the lower middle portion of the ceramic part stretches into the metal liquid in the foundry furnace, and the metal part is not in contact with the metal liquid in the foundry furnace. The lower end of the ceramic part is closed, and a circle of through holes are evenly formed in the side wall, close to the lower end, of the ceramic part at intervals. According to the lift tube for casting, the lifting tube is divided into the ceramic part and the metal part, and on the premise that the quality of the castings is guaranteed, the cost is saved; in addition, the end, being not connected with the iron part, of the ceramic part is closed, the circle of through holes are evenly formed in the side wall of the closed end of the ceramic part, and thus the metal liquid can be prevented from flowing back.
Description
Technical field
The present invention relates to casting field, be specifically related to a kind of casting stalk.
Background technology
During low pressure casting use stalk, it is connect with bolt shimming that mould is connected with stalk upper end, and the about 50cm in stalk lower end, immerse in smelting furnace, solution temperature reaches 785 DEG C ± 5 DEG C.Stalk conventional at present has following several: one is irony structure, and this stalk is dipped in aluminium liquid for a long time can produce irony corrosion, causes aluminium liquid to increase iron, have a strong impact on product quality, and irony corrosion can cause stalk to damage; Another is exactly graphite-structure, but because of its weight capacity and anti-wear performance poor, easy wear and rupture; Also have one to be exactly ceramic structure, but need import, and every bar is all more than 10000 yuan, cost is higher.
In addition, when metal liquid refluxes time, metal liquid stream directly impacts bottom foundry furnace, can be formed to impact to the metal bottom foundry furnace and stir, make the field trash Eddy diffusion bottom precipitation foundry furnace, during cast next time, these field trashes flow to into foundry goods with metal liquid, cause the inclusion defect of foundry goods.
Summary of the invention
For solving the problem, technical problem to be solved by this invention is to provide a kind of casting stalk.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of casting stalk, this stalk be used for low pressure casting time by the metal liquid filling die cavity in foundry furnace, to form foundry goods, comprise ceramic segment and metallic member, described metallic member is in the top of described ceramic segment, the lower end of described metallic member and the upper end of described ceramic segment are threaded connection, and the middle and lower part of described ceramic segment extend in the metal liquid in described foundry furnace, and described metallic member does not contact with the metal liquid in described foundry furnace;
Described ceramic segment lower end closed, and be provided with a ring through hole described ceramic segment is evenly spaced on the sidewall of lower end.
Further, described ceramic segment is silicon carbide ceramic.
Further, described metallic member is the one in stainless steel tube, iron pipe or steel pipe.
Further, also insulated thermal insulating layer is provided with at described metallic member outer surface.
The invention has the beneficial effects as follows: a kind of casting stalk provided by the invention, stalk is divided into ceramic segment and metallic member, ceramic segment is not exclusively immersed in the metal liquid in foundry furnace, metallic member does not contact with the metal liquid in foundry furnace, under cost-saving prerequisite, ensure that the quality of cast member; In addition, one end that ceramic segment is not connected with described irony part is closed, and the sidewall of the one end closed evenly is provided with a ring through hole, when preventing metal liquid from refluxing, causes the inclusion defect of foundry goods.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, ceramic segment, 2, metallic member, 3, through hole, 4, insulated thermal insulating layer.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of casting stalk, this stalk for during low pressure casting by the metal liquid filling die cavity in foundry furnace, to form foundry goods, comprise ceramic segment 1 and metallic member 2, described ceramic segment 1 is silicon carbide ceramic, and casting effect is better.Described metallic member 2 is the one in stainless steel tube, iron pipe or steel pipe.Also be provided with insulated thermal insulating layer 4 at described metallic member 2 outer surface, ensure that the molten metal in metallic member 2 is filled in die cavity in certain temperature.
Described metallic member 2 is in the top of described ceramic segment 1, the lower end of described metallic member 2 and the upper end of described ceramic segment 1 are threaded connection, and the middle and lower part of described ceramic segment 1 extend in the metal liquid in described foundry furnace, described metallic member 2 does not contact with the metal liquid in described foundry furnace.Ceramic structure, but need import, and every bar is all more than 10000 yuan, and cost is higher.Stalk is divided into ceramic segment 1 and metallic member 2, ceramic segment 1 is not exclusively immersed in the metal liquid in foundry furnace, and metallic member 2 does not contact with the metal liquid in foundry furnace, under ensureing the prerequisite of the quality of cast member, has saved cost.
The lower end closed of described ceramic segment 1, and be provided with a ring through hole 3 described ceramic segment 1 is evenly spaced on the sidewall of lower end.When metal liquid backflow, metal liquid stream enters foundry furnace from the through hole 3 sidewall, metal liquid stream is avoided directly to impact bottom foundry furnace, formed to impact to the metal bottom foundry furnace and stir, make the field trash Eddy diffusion bottom precipitation foundry furnace, during cast next time, these field trashes flow to into foundry goods with metal liquid, cause the inclusion defect of foundry goods.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a casting stalk, this stalk be used for low pressure casting time by the metal liquid filling die cavity in foundry furnace, to form foundry goods, it is characterized in that: comprise ceramic segment (1) and metallic member (2), described metallic member (2) is in the top of described ceramic segment (1), the lower end of described metallic member (2) and the upper end of described ceramic segment (1) are threaded connection, and the middle and lower part of described ceramic segment (1) extend in the metal liquid in described foundry furnace, described metallic member (2) does not contact with the metal liquid in described foundry furnace,
The lower end closed of described ceramic segment (1), and on the sidewall of lower end, evenly spaced be provided with a ring through hole (3) at described ceramic segment (1).
2. a kind of casting stalk according to claim 1, is characterized in that: described ceramic segment (1) is silicon carbide ceramic.
3. a kind of casting stalk according to claim 1, is characterized in that: described metallic member (2) is stainless steel tube, one in iron pipe or steel pipe.
4., according to the arbitrary described one casting stalk of claims 1 to 3, it is characterized in that: be also provided with insulated thermal insulating layer (4) at described metallic member (2) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410687417.XA CN104439160A (en) | 2014-11-25 | 2014-11-25 | Lift tube for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410687417.XA CN104439160A (en) | 2014-11-25 | 2014-11-25 | Lift tube for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104439160A true CN104439160A (en) | 2015-03-25 |
Family
ID=52886350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410687417.XA Pending CN104439160A (en) | 2014-11-25 | 2014-11-25 | Lift tube for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104439160A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735089A (en) * | 2017-02-13 | 2017-05-31 | 无锡市懋锐科技有限公司 | Stalk heat insulation energy-saving device |
| WO2018068528A1 (en) * | 2016-10-12 | 2018-04-19 | 福建省瑞奥麦特轻金属有限责任公司 | Filter-free liquid rising tube for use in low-pressure casting |
| CN109434076A (en) * | 2018-12-21 | 2019-03-08 | 淮阴工学院 | A kind of aluminum alloy low-pressure casting anti-gas-leak heat preservation non-return aluminium titanates stalk |
| CN115475926A (en) * | 2022-08-25 | 2022-12-16 | 浙江明道热能科技有限公司 | Low-pressure sand casting device and method for preparing pure aluminum castings by using same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145358A (en) * | 1981-11-04 | 1983-08-30 | Osamu Madono | Stalk for low pressure casting of aluminum |
| CN101612659A (en) * | 2009-07-28 | 2009-12-30 | 北京科技大学 | One Albatra metal-antigravity casting stalk |
| CN201618842U (en) * | 2009-11-24 | 2010-11-03 | 重庆佰坛机械制造有限公司 | Iron-impermeable riser tube for low-pressure casting |
| CN202291362U (en) * | 2011-09-27 | 2012-07-04 | 陈新华 | Riser tube for die casting |
| CN202316969U (en) * | 2011-11-09 | 2012-07-11 | 陈新华 | Low-pressure casting riser tube |
-
2014
- 2014-11-25 CN CN201410687417.XA patent/CN104439160A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145358A (en) * | 1981-11-04 | 1983-08-30 | Osamu Madono | Stalk for low pressure casting of aluminum |
| CN101612659A (en) * | 2009-07-28 | 2009-12-30 | 北京科技大学 | One Albatra metal-antigravity casting stalk |
| CN201618842U (en) * | 2009-11-24 | 2010-11-03 | 重庆佰坛机械制造有限公司 | Iron-impermeable riser tube for low-pressure casting |
| CN202291362U (en) * | 2011-09-27 | 2012-07-04 | 陈新华 | Riser tube for die casting |
| CN202316969U (en) * | 2011-11-09 | 2012-07-11 | 陈新华 | Low-pressure casting riser tube |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068528A1 (en) * | 2016-10-12 | 2018-04-19 | 福建省瑞奥麦特轻金属有限责任公司 | Filter-free liquid rising tube for use in low-pressure casting |
| CN106735089A (en) * | 2017-02-13 | 2017-05-31 | 无锡市懋锐科技有限公司 | Stalk heat insulation energy-saving device |
| CN109434076A (en) * | 2018-12-21 | 2019-03-08 | 淮阴工学院 | A kind of aluminum alloy low-pressure casting anti-gas-leak heat preservation non-return aluminium titanates stalk |
| CN109434076B (en) * | 2018-12-21 | 2023-12-01 | 淮阴工学院 | Air leakage prevention heat preservation non-return aluminum titanate lift tube for low-pressure casting of aluminum alloy |
| CN115475926A (en) * | 2022-08-25 | 2022-12-16 | 浙江明道热能科技有限公司 | Low-pressure sand casting device and method for preparing pure aluminum castings by using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |