CN101041174A - Technique of founding casing with vacuum - Google Patents
Technique of founding casing with vacuum Download PDFInfo
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- CN101041174A CN101041174A CN 200610031422 CN200610031422A CN101041174A CN 101041174 A CN101041174 A CN 101041174A CN 200610031422 CN200610031422 CN 200610031422 CN 200610031422 A CN200610031422 A CN 200610031422A CN 101041174 A CN101041174 A CN 101041174A
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Abstract
The invention discloses a vacuum epc casting process for complicated workpiece, comprising preparing mould, combining mould, hanging paint, paint drying, modeling, vibrating, casting and cleaning; characterized in that when moulds are combined, filter screen [2] is set in the casting path [1] and head process block [5] is set on the workpiece mould [3]. The casting product in invention can eliminate slag hole, air hole and shrinkage hole. It is provided with smooth product surface and uniform wall thickness. The product standard rate can be improved to more than 90%.
Description
Technical field:
The present invention relates to a kind of technique of founding casing with vacuum.
Background technology:
At present, when adopting technique of founding casing with vacuum to produce foundry goods, to complex-shaped workpiece, because of its loam core too many, easy deformation, it is even easily to produce wall unevenness, easily perforation, sealing surface is easy to generate cinder hole, pore, shrinkage cavity, rough, and allowance is big, the percent defective height.
Summary of the invention:
The technique of founding casing with vacuum that the purpose of this invention is to provide a kind of processed complex workpiece.
The present invention adopts following technical scheme to realize its goal of the invention, a kind of technique of founding casing with vacuum, it comprises molding, group mould, hangs coating, coating drying, moulding, vibration, cast, cleaning, during the group mould, screen pack is set in running channel, rising head technology piece is set on the workpiece mould.
The present invention during the group mould, is provided with the anti-deformation process piece for preventing workpiece when casting distortion on the workpiece mould.
The present invention prevents that the machined surface that workpiece is had relatively high expectations from producing cinder hole, pore, during the group mould, is provided with scum silica frost technology piece on the workpiece mould.
Because adopt technique scheme, the present invention has realized goal of the invention preferably, its cast product has been eliminated cinder hole, pore, shrinkage cavity, and product surface is smooth, wall thickness is even, and the product percentage of A-class goods has been brought up to more than 90%.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the schematic diagram of the embodiment of the invention 3.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing.
Embodiment 1:
As shown in Figure 1, a kind of technique of founding casing with vacuum, it comprises molding, group mould, hangs coating, coating drying, moulding, vibration, cast, cleaning, during the group mould, screen pack 2 is set in running channel 1, and rising head technology piece 5 is set on workpiece mould 3.
The present invention during the group mould, makes rising head technology piece 5 when implementing, be bonded at the appropriate location of workpiece mould 3 respectively with the last 851 stick; Glue running channel 1, good and sound screen pack 2; To workpiece mould 3 dip-coating paints, coating layer thickness 1.5mm-2mm, coating oven dry; Moulding is adopted the fastening quartz sand of shaking table, is buried the case moulding.At shop, sandbox bottom 150mm-200mm quartz sand consolidation, then workpiece mould 3 integral body are imbedded in the sand, the formula way evenly adds sand with drenching with rain, about every adding 200mm, vibrate 1-2 minute, go directly and to go in the sand to workpiece mould 3 integral body, sand is higher than more than the workpiece mould 3 whole 200mm, cover film then, with sand integral body suitable for reading is obturaged, it is to be cast to connect vavuum pump etc.; Molten iron passes through electro-smelting; carry out on-the-spot sample analysis; the pouring molten iron temperature reaches 1480 ℃-1510 ℃; start vavuum pump when beginning to pour into a mould; negative pressure value is 0.05-0.08Mpa, pours vavuum pump shutdown after 8 minutes, 4 hours knockouts of unpacking later on; cleaning polishing, annealing enter machined after the assay was approved.
Embodiment 2:
The present invention during the group mould, is provided with anti-deformation process piece 4 for preventing workpiece when casting distortion on workpiece mould 3, anti-deformation process piece 4 is a lining ring, and is surplus with embodiment 1.
Embodiment 3:
Anti-deformation process piece 4 may be selected to be a skeleton, can be used for circle or square cross, also can be used for other shape workpiece, and present embodiment is circular, surplus with embodiment 1.
Embodiment 4:
The present invention prevents that the machined surface that workpiece is had relatively high expectations from producing cinder hole, pore, during the group mould, scum silica frost technology piece 6 is set on workpiece mould 3, and is surplus with embodiment 1.
Claims (3)
1, a kind of technique of founding casing with vacuum, it comprises molding, group mould, hangs coating, coating drying, moulding, vibration, cast, cleaning, when it is characterized in that organizing mould, screen pack [2] is set in running channel [1], and rising head technology piece [5] is set on workpiece mould [3].
2, technique of founding casing with vacuum according to claim 1 when it is characterized in that organizing mould, is provided with anti-deformation process piece [4] on workpiece mould [3].
3, technique of founding casing with vacuum according to claim 1 and 2 when it is characterized in that organizing mould, is provided with scum silica frost technology piece [6] on workpiece mould [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031422 CN101041174A (en) | 2006-03-21 | 2006-03-21 | Technique of founding casing with vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031422 CN101041174A (en) | 2006-03-21 | 2006-03-21 | Technique of founding casing with vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101041174A true CN101041174A (en) | 2007-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610031422 Pending CN101041174A (en) | 2006-03-21 | 2006-03-21 | Technique of founding casing with vacuum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101041174A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009123A (en) * | 2010-12-14 | 2011-04-13 | 青岛顺联集装箱部件制造有限公司 | Method for manufacturing automobile cross beam lost foam and using method |
| CN102029358A (en) * | 2010-12-14 | 2011-04-27 | 青岛顺联集装箱部件制造有限公司 | Expendable pattern for manufacturing corner fittings of container and manufacturing method and using method thereof |
| CN105397028A (en) * | 2015-12-07 | 2016-03-16 | 天津威尔朗科技有限公司 | Method for evaporative pattern monoblock casting for middle groove member of scraper conveyer |
-
2006
- 2006-03-21 CN CN 200610031422 patent/CN101041174A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009123A (en) * | 2010-12-14 | 2011-04-13 | 青岛顺联集装箱部件制造有限公司 | Method for manufacturing automobile cross beam lost foam and using method |
| CN102029358A (en) * | 2010-12-14 | 2011-04-27 | 青岛顺联集装箱部件制造有限公司 | Expendable pattern for manufacturing corner fittings of container and manufacturing method and using method thereof |
| CN102029358B (en) * | 2010-12-14 | 2013-03-13 | 青岛顺联集装箱部件制造有限公司 | Expendable pattern for manufacturing corner fittings of container and manufacturing method and using method thereof |
| CN102009123B (en) * | 2010-12-14 | 2013-05-22 | 青岛顺联集装箱部件制造有限公司 | Automobile cross beam lost foam as well as manufacturing and using method thereof |
| CN105397028A (en) * | 2015-12-07 | 2016-03-16 | 天津威尔朗科技有限公司 | Method for evaporative pattern monoblock casting for middle groove member of scraper conveyer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070926 |