CN101797635B - Vacuum negative-pressure self-casting device for melting crucibles - Google Patents
Vacuum negative-pressure self-casting device for melting crucibles Download PDFInfo
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- CN101797635B CN101797635B CN2010101068624A CN201010106862A CN101797635B CN 101797635 B CN101797635 B CN 101797635B CN 2010101068624 A CN2010101068624 A CN 2010101068624A CN 201010106862 A CN201010106862 A CN 201010106862A CN 101797635 B CN101797635 B CN 101797635B
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- melting
- red copper
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Abstract
The invention discloses a vacuum negative-pressure self-casting device for melting crucibles. A melting crucible is arranged on a fixing flange through a crucible base; the bottom of the melting crucible is provided with a red copper screw; a central through hole of the red copper screw is communicated to the bottom of the melting crucible; a negative-pressure cavity is arranged on the fixing flange at the lower end of the red copper screw; a lower-end opening of the negative-pressure cavity is connected with a molding die; a gap is reserved between an upper-end opening of the molding die and the lower end of the red copper screw; a molding die jacket is provided with a negative-pressure suction tube; and the negative-pressure suction tube is communicated with the negative-pressure cavity through a plurality of through holes on the fixing flange. The device fundamentally overcomes the deficiencies of the prior casting technique, allows the negative-pressure cavity and the melting crucible to be balanced in pressure in the melting process, ensures that melting raw material with certain viscosity cannot flow into a die cavity, utilizes the negative-pressure suction tube to suck the die cavity communicated with the negative-pressure cavity through the gap to be under negative pressure via the through holes in the casting process, and allows the melting raw material to slowly flow into the die cavity under the pressure of protective gas so as to automatically finish mold-casting work.
Description
Technical field
The present invention relates to a kind of corollary apparatus of arc-melting furnace, specifically relate to a kind of vacuum negative-pressure self-casting device of melting kettle.
Background technology
Arc-melting furnace is to utilize electrode discharge melting raw material in crucible; Raw material after the melting needs casting forming; Three kinds of casting modes are roughly arranged in the prior art: the one, be cooled to ingot naturally after the employing melting, this method is the most original, can not obtain the sample of required form, specification; Therefore be unfavorable for analysis that the shaping sample is correlated with, even some analysis operations can not carry out; The 2nd, carry out the die casting moulding in that vacuum melting furnace is indoor, but complex structure, operation is difficulty relatively; The 3rd, adopt the suction pouring method; Respectively open an aperture in die tip and bottom; Aperture through mold bottom is to the mold cavity generation negative pressure of bleeding; The melting raw material sucks mold cavity cooling forming again through the aperture of die tip, though this method has advantages such as simple in structure, easy to operate, the mold failure phenomenon that causes because of reasons such as aperture obstructions usually takes place also.In the arc-melting furnace technical field, existing casting technique is not mature enough, and those skilled in the art is is actively researching and developing some new casting modes.
Summary of the invention
The present invention solves the existing in prior technology technical problem, and a kind of vacuum negative-pressure self-casting device of melting kettle is provided.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of vacuum negative-pressure self-casting device of melting kettle; Be arranged on melting kettle below; Melting kettle is arranged on the mounting flange through the crucible pedestal; Said melting kettle bottom is provided with the red copper screw rod, and the central through hole of red copper screw rod is communicated to the bottom of melting kettle; The lower end place of said red copper screw rod; On mounting flange, be provided with negative pressure cavity; The lower port of negative pressure cavity connects into type die; Be provided with the gap between the lower end of mould port and red copper screw rod, mould is arranged with negative pressure straw outward, and negative pressure straw is connected with negative pressure cavity through the some through holes on the mounting flange.
As preferably, be provided with graphite lining core in the central through hole of said red copper screw rod, when taking place to stop up in the use, only need to change graphite lining core and get final product, help practicing thrift cost.
As preferably, said red copper screw rod is fixed on the bottom of melting kettle through threaded engagement, adopts the screw thread detaching structure, and is convenient for installation and maintenance.
As preferably, the lower end of said red copper screw rod and mould are down between the trumpet-shaped port and are provided with the gap.
Be filled with the protective gas of certain pressure in the arc-melting furnace; Negative pressure cavity and melting kettle pressure balance during melting; Have the melting raw material of certain viscosity can not flow in the mold cavity, utilize the negative pressure straw via through holes to inhale into negative pressure through the mold cavity that the gap is communicated with negative pressure cavity during casting, the melting raw material slowly flows to mold cavity under the pressure of protective gas; Automatically accomplish mold work, can change the mould of difformity die cavity according to actual needs.The present invention has fundamentally solved the deficiency of existing casting technique, and is simple in structure, reasonable in design, convenient and practical, makes equipment casting sample success rate reach 100%.
Description of drawings
Fig. 1 is a kind of perspective view of the present invention;
Fig. 2 is a kind of sectional structure sketch map of the present invention.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.
Embodiment: referring to Fig. 1 and Fig. 2, among the present invention, melting kettle 1 is arranged on the mounting flange 2 through crucible pedestal 11; Be provided with cooling water cavity 3 in the crucible pedestal 11; Cooling water cavity 3 one sides connect water inlet pipe 14, and opposite side connects outlet pipe 15, constitute the cooling water circulation canal; Melting kettle 1 bottom is fixed with red copper screw rod 4 through threaded engagement; The central through hole of red copper screw rod 4 is communicated to the bottom of melting kettle 1, is provided with graphite lining core 5 in the central through hole of red copper screw rod 4, when taking place to stop up in the use; Only need to change graphite lining core and get final product, help practicing thrift cost; The lower end place of red copper screw rod 4; On mounting flange 2, be provided with negative pressure cavity 8; The lower port of negative pressure cavity 8 connects into type die 6, and mould 6 is down between the lower end of trumpet-shaped port and red copper screw rod 4 and is provided with gap 7, the mould 6 outer negative pressure straws 10 that are arranged with; Negative pressure straw 10 is connected with negative pressure cavity 8 through the some through holes 9 on the mounting flange 2, and the adpting flange 12 of negative pressure straw 10 ends is through connecting soft pipe connection to the stop valve of vacuum system.
During work; The melting raw material is packed into behind the melting kettle, and the sealing arc-melting furnace also is evacuated, and fills the protective gas of certain pressure then in the arc-melting furnace; This moment melting kettle and mould the die cavity air pressure balance; Even raw material by melting after, the die cavity of melting kettle and mould is still keeping pressure balance, has the melting raw material of certain viscosity can not flow in the mold cavity; Utilize the negative pressure straw via through holes to inhale into negative pressure through the mold cavity that the gap is communicated with during casting with negative pressure cavity; The melting raw material slowly flows to mold cavity under the pressure of protective gas; Automatically accomplish mold work, can change the mould of difformity die cavity according to actual needs.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to the foregoing description, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (4)
1. the vacuum negative-pressure self-casting device of a melting kettle; Be arranged on melting kettle (1) below; Melting kettle (1) is arranged on the mounting flange (2) through crucible pedestal (11); It is characterized in that said melting kettle (1) bottom is provided with red copper screw rod (4), the central through hole of red copper screw rod (4) is communicated to the bottom of melting kettle (1); The lower end place of said red copper screw rod (4); On mounting flange (2), be provided with negative pressure cavity (8); The lower port of negative pressure cavity (8) connects into type die (6); Be provided with gap (7) between the lower end of mould (6) port and red copper screw rod (4), mould (6) is outer to be arranged with negative pressure straw (10), and negative pressure straw (10) is connected with negative pressure cavity (8) through the some through holes (9) on the mounting flange (2).
2. the vacuum negative-pressure self-casting device of melting kettle according to claim 1 is characterized in that being provided with graphite lining core (5) in the central through hole of said red copper screw rod (4).
3. the vacuum negative-pressure self-casting device of melting kettle according to claim 1 and 2 is characterized in that said red copper screw rod (4) is fixed on the bottom of melting kettle (1) through threaded engagement.
4. the vacuum negative-pressure self-casting device of melting kettle according to claim 1 and 2, the lower end and the mould (6) that it is characterized in that said red copper screw rod (4) are down and are provided with gap (7) between the trumpet-shaped port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101068624A CN101797635B (en) | 2010-02-08 | 2010-02-08 | Vacuum negative-pressure self-casting device for melting crucibles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101068624A CN101797635B (en) | 2010-02-08 | 2010-02-08 | Vacuum negative-pressure self-casting device for melting crucibles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101797635A CN101797635A (en) | 2010-08-11 |
| CN101797635B true CN101797635B (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101068624A Expired - Fee Related CN101797635B (en) | 2010-02-08 | 2010-02-08 | Vacuum negative-pressure self-casting device for melting crucibles |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9144822B2 (en) | 2012-09-28 | 2015-09-29 | General Electric Company | Methods and systems for joining materials |
| CN103008614B (en) * | 2012-12-18 | 2015-11-18 | 广东工业大学 | A kind of for the preparation of the copper mold of bulk amorphous alloys and the preparation method of copper mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062466A (en) * | 1991-05-10 | 1991-11-05 | General Motors Corporation | Countergravity casting apparatus and method |
| US6332357B1 (en) * | 1996-12-16 | 2001-12-25 | Hiroshima Aluminum Industry Co., Ltd. | Suction-type liquid measuring device and method of feeding molten fluid utilizing same |
| CN1803342A (en) * | 2005-12-16 | 2006-07-19 | 华中科技大学 | Metal glass melt cast moulding method and its device |
| CN201186348Y (en) * | 2008-04-15 | 2009-01-28 | 叶瑞文 | Vacuum upper suction casting equipment |
| CN101580904A (en) * | 2009-06-22 | 2009-11-18 | 北京科技大学 | Method for preparing bulk amorphous alloy under non-vacuum condition and equipment |
| CN201592242U (en) * | 2010-02-08 | 2010-09-29 | 杭州大华仪器制造有限公司 | Vacuum negative pressure self-pouring device for smelting crucible |
-
2010
- 2010-02-08 CN CN2010101068624A patent/CN101797635B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062466A (en) * | 1991-05-10 | 1991-11-05 | General Motors Corporation | Countergravity casting apparatus and method |
| US6332357B1 (en) * | 1996-12-16 | 2001-12-25 | Hiroshima Aluminum Industry Co., Ltd. | Suction-type liquid measuring device and method of feeding molten fluid utilizing same |
| CN1803342A (en) * | 2005-12-16 | 2006-07-19 | 华中科技大学 | Metal glass melt cast moulding method and its device |
| CN201186348Y (en) * | 2008-04-15 | 2009-01-28 | 叶瑞文 | Vacuum upper suction casting equipment |
| CN101580904A (en) * | 2009-06-22 | 2009-11-18 | 北京科技大学 | Method for preparing bulk amorphous alloy under non-vacuum condition and equipment |
| CN201592242U (en) * | 2010-02-08 | 2010-09-29 | 杭州大华仪器制造有限公司 | Vacuum negative pressure self-pouring device for smelting crucible |
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| CN101797635A (en) | 2010-08-11 |
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Granted publication date: 20120418 Termination date: 20210208 |