CN103350191A - Rapid dewaxing kettle - Google Patents
Rapid dewaxing kettle Download PDFInfo
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- CN103350191A CN103350191A CN2013101977669A CN201310197766A CN103350191A CN 103350191 A CN103350191 A CN 103350191A CN 2013101977669 A CN2013101977669 A CN 2013101977669A CN 201310197766 A CN201310197766 A CN 201310197766A CN 103350191 A CN103350191 A CN 103350191A
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- inner bag
- dewaxing kettle
- outer courage
- inner container
- outer container
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Abstract
The invention relates to a dewaxing kettle belonging to the precise casting field. A problem to be solved is providing a rapid dewaxing kettle realizing no expansion of the wax mould. A technical scheme adopted in the invention for solving the above problem is characterized in that the rapid dewaxing kettle comprises a heat insulation layer, an outer container, an inner container, heating tubes and a wax recovery pipeline, the inner container is positioned in the middle of the outer container, the heating tubes are positioned between the outer container and the inner container, and the volume ratio of the outer container to the inner container is equal to or greater than 1.6:1, and preferably 1.75:1. By adopting the above technical scheme, the work pressure of the dewaxing kettle is 8kg/5s, the pressure climbing time is improved 2.6 times, the precisions of workpieces are stable, and the work efficiency is improved by 15%.
Description
Technical field
The present invention relates to a kind of hot investment casting instrument, relate in particular to a kind of dewaxing kettle for the precision casting mold dewaxing.
Background technology
In the prior art, dewaxing kettle comprises outer courage, inner bag, and the heating tube between outer courage and inner bag, and outer courage is the steam generation district, and inner bag is the workspace.During work, at first outwards add a certain amount of water in the courage, heat by the water in the external courage of heating tube again, thereby generation steam, then open inlet valve, steam just enters inner bag by steam inlet pipe, higher vapour pressure and temperature is provided for the mould in the workspace.And the outer courage specification of the standard component of dewaxing kettle is 100*140cm at present, the inner bag specification is 80*120cm, the volumetric ratio of outer courage and inner bag is 1.46:1, pressure was 8 seconds 5kg when the dewaxing kettle of this structure was worked, 13 seconds 8kg, long the time-to-climb of whole pressure, the wax material burn-off rate is slow, wax is from the solid-state volumetric expansion that produces to liquid state, easily make the spalling of shell mould, the cracking of shell mould then can badly influence the surface quality of foundry goods, batch seam that the rear cast(ing) surface of cast is produced with regard to having liquid steel water inflow crack at the position of cracking, the lighter need to polish and reprocess, and the serious foundry goods that causes is scrapped.
Summary of the invention
The technical problem to be solved in the present invention provides the fast dewaxing still that a kind of shell mould is difficult for spalling.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of fast dewaxing still, comprise heat-insulation layer, outer courage, inner bag, heating tube and wax recovery channel, and described inner bag is positioned in the middle of the outer courage, described heating tube between outer courage and inner bag, the volumetric ratio 〉=1.6:1 of described outer courage and inner bag.
The preferred technical scheme of the present invention is: the volumetric ratio 〉=1.75:1 of described outer courage and inner bag.
Adopt technique scheme, the operating pressure of dewaxing kettle is 5 seconds 8kg, promotes 2.6 times time-to-climb of pressure, and workpiece accuracy is stable, and operating efficiency promotes 15%.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in the figure: a kind of fast dewaxing still, comprise heat-insulation layer 1, outer courage 2, inner bag 3, heating tube 4 and wax recovery channel 5, described inner bag 3 is positioned in the middle of the outer courage 2, described heating tube 4 is between outer courage 2 and inner bag 3, the specification of described outer courage 2 is 120*140cm, inner bag 3 specifications are 80*120cm, the volumetric ratio of outer courage 2 and inner bag 3 is 1.75:1, water inlet pipe 10 and water-level gauge 9 are housed on the described outer courage 2, safety valve 7, wax recovery channel 5 and vapor discharge channel 8 are housed on the described inner bag 3, outer courage 2 is connected with inner bag by steam inlet pipe 6 connections, on the described steam inlet pipe 6 inlet valve 61 is housed, and described wax-pattern 11 is placed in the inner bag 3.
Claims (2)
1. a fast dewaxing still comprises heat-insulation layer, outer courage, inner bag, heating tube and wax recovery channel, and described inner bag is positioned in the middle of the outer courage, and described heating tube is characterized in that between outer courage and inner bag: the volumetric ratio 〉=1.6:1 of described outer courage and inner bag.
2. fast dewaxing still according to claim 1 is characterized in that: the volumetric ratio 〉=1.75:1 of described outer courage and inner bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197766.9A CN103350191B (en) | 2013-05-25 | 2013-05-25 | Rapid dewaxing kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197766.9A CN103350191B (en) | 2013-05-25 | 2013-05-25 | Rapid dewaxing kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103350191A true CN103350191A (en) | 2013-10-16 |
| CN103350191B CN103350191B (en) | 2015-07-15 |
Family
ID=49306653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310197766.9A Active CN103350191B (en) | 2013-05-25 | 2013-05-25 | Rapid dewaxing kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103350191B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301322A (en) * | 1999-04-16 | 2000-10-31 | Nissan Motor Co Ltd | Casting method |
| CN202079245U (en) * | 2011-06-10 | 2011-12-21 | 河南豫兴铸造有限公司 | Dewaxing device for wax mould shell |
| CN202683937U (en) * | 2012-07-26 | 2013-01-23 | 安徽应流铸业有限公司 | Steam dewaxing kettle |
-
2013
- 2013-05-25 CN CN201310197766.9A patent/CN103350191B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000301322A (en) * | 1999-04-16 | 2000-10-31 | Nissan Motor Co Ltd | Casting method |
| CN202079245U (en) * | 2011-06-10 | 2011-12-21 | 河南豫兴铸造有限公司 | Dewaxing device for wax mould shell |
| CN202683937U (en) * | 2012-07-26 | 2013-01-23 | 安徽应流铸业有限公司 | Steam dewaxing kettle |
Non-Patent Citations (1)
| Title |
|---|
| 铸造设备选用手册编委会: "《铸造设备选用手册》", 31 March 2001, 机械工业出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103350191B (en) | 2015-07-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tan Qiuhua Inventor before: Liu Chang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU CHANG TO: TAN QIUHUA |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |