CN202490913U - Evanescent die for casting soft sealing gate valve - Google Patents
Evanescent die for casting soft sealing gate valve Download PDFInfo
- Publication number
- CN202490913U CN202490913U CN2012200512078U CN201220051207U CN202490913U CN 202490913 U CN202490913 U CN 202490913U CN 2012200512078 U CN2012200512078 U CN 2012200512078U CN 201220051207 U CN201220051207 U CN 201220051207U CN 202490913 U CN202490913 U CN 202490913U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- gate valve
- evanescent
- die
- 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.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an evanescent die for casting a soft sealing gate valve. The evanescent die comprises a valve body, a valve cover, a valve rod and a gate evanescent die plastic part which are formed in an extrusion manner; a conical surface is arranged at the bottom of the upper port of a valve body plastic part; a wedged block is arranged on the upper end of a gate plastic part; the wedged block and the conical surface at the bottom of the upper port of the valve body plastic part move up and down; and the diameter of the upper end of the wedged block is more than the aperture of the bottom of the upper port of the valve body plastic part. The evanescent die disclosed by the utility model has the characteristics of reasonable structure and capabilities of improving the sealing property of the cast gate valve, reducing the abradability of the gate valve body and the gate and improving the performance of the gate valve.
Description
Technical field
The utility model relates to disappearance mould field, is specifically related to a kind of disappearance mould that is used to cast soft sealing gate valve.
Background technology
The opening and closing element of gate valve is a flashboard, and the direction of motion and the flow direction of flashboard are perpendicular, and gate valve can only be made standard-sized sheet and complete shut-down, can not do to regulate and throttling.
Lost foam casting (claiming cavityless casting again) is that paraffin similar with the casting dimension shape or bubbles model bonding are combined into model cluster; After brushing fireproof coating and oven dry; Be embedded in vibration molding in the dried quartz sand, under negative pressure, pour into a mould, make the model gasification; Liquid metals occupies modal position, solidifies the novel casting method that the cooling back forms foundry goods.
The flashboard of the gate valve through existing lost foam casting in the course of the work, and frequent friction between the valve body causes the inner surface generation wearing and tearing in various degree of the outer surface and the valve body of flashboard, can reduce sealing property, thereby reduce the performance of gate valve.
The utility model content
The purpose of the utility model provides a kind of disappearance mould that is used to cast soft sealing gate valve, improves the sealing property of casting back gate valve, reduces the wear intensity of gate valve body and flashboard.
The technical scheme of the utility model is following:
A kind of disappearance mould that is used to cast soft sealing gate valve; It is characterized in that: include valve body, valve gap, valve rod and flashboard plastic through extrusion moulding; Said valve body plastic bottom suitable for reading is provided with the conical surface; The upper end of said flashboard plastic is provided with wedge, and the conical surface of described wedge and valve body plastic bottom suitable for reading moves up and down, and the upper end diameter of wedge is greater than the bore of valve body plastic bottom suitable for reading.
The described disappearance mould that is used to cast soft sealing gate valve is characterized in that: be provided with runner in the said valve body plastic, and the two ends of valve body plastic are respectively equipped with import and export.
The beneficial effect of the utility model:
The utility model is rational in infrastructure, has improved the sealing property of casting back gate valve, has reduced the wear intensity of gate valve body and flashboard, thereby has improved the performance of gate valve.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to Fig. 1; A kind of disappearance mould that is used to cast soft sealing gate valve; Include valve body, valve gap, valve rod and flashboard plastic 1,2,3,4 through extrusion moulding, valve body plastic 1 bottom suitable for reading is provided with the conical surface 5, and the upper end of flashboard plastic 4 is provided with wedge 6; Wedge 6 moves up and down with the conical surface 5 of valve body plastic 1 bottom suitable for reading, and the upper end diameter of wedge 6 is greater than the bore of valve body plastic 1 bottom suitable for reading.
Be provided with runner 7 in the valve body plastic 1, and the two ends of valve body plastic 1 are respectively equipped with import and export 8,9.
Claims (2)
1. disappearance mould that is used to cast soft sealing gate valve; It is characterized in that: include valve body, valve gap, valve rod and flashboard plastic through extrusion moulding; Said valve body plastic bottom suitable for reading is provided with the conical surface; The upper end of said flashboard plastic is provided with wedge, and the conical surface of described wedge and valve body plastic bottom suitable for reading moves up and down, and the upper end diameter of wedge is greater than the bore of valve body plastic bottom suitable for reading.
2. the disappearance mould that is used to cast soft sealing gate valve according to claim 1 is characterized in that: be provided with runner in the said valve body plastic, and the two ends of valve body plastic are respectively equipped with import and export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200512078U CN202490913U (en) | 2012-02-17 | 2012-02-17 | Evanescent die for casting soft sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200512078U CN202490913U (en) | 2012-02-17 | 2012-02-17 | Evanescent die for casting soft sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202490913U true CN202490913U (en) | 2012-10-17 |
Family
ID=46997157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200512078U Expired - Fee Related CN202490913U (en) | 2012-02-17 | 2012-02-17 | Evanescent die for casting soft sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202490913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658519A (en) * | 2013-12-03 | 2014-03-26 | 安徽凯司汀精铸有限公司 | Soft sealing gate valve lost foam and pouring method thereof |
-
2012
- 2012-02-17 CN CN2012200512078U patent/CN202490913U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658519A (en) * | 2013-12-03 | 2014-03-26 | 安徽凯司汀精铸有限公司 | Soft sealing gate valve lost foam and pouring method thereof |
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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: 20121017 Termination date: 20140217 |