CN201744613U - Blind riser - Google Patents
Blind riser Download PDFInfo
- Publication number
- CN201744613U CN201744613U CN2010202996565U CN201020299656U CN201744613U CN 201744613 U CN201744613 U CN 201744613U CN 2010202996565 U CN2010202996565 U CN 2010202996565U CN 201020299656 U CN201020299656 U CN 201020299656U CN 201744613 U CN201744613 U CN 201744613U
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- CN
- China
- Prior art keywords
- gas outlet
- blind riser
- venthole
- sand layer
- utility
- 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 - Lifetime
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Abstract
The utility model provides a blind riser, which comprises a blind riser body equipped inside the sand layer and corresponding to a casting chamber. The center of the blind riser body top is provided with a gas outlet. And the sand layer center is provided with a gas outlet hole corresponding to the gas outlet. A high temperature resistant layer is provided in the sidewall of the gas outlet hole and corresponds to the gas outlet. The utility model which can prevent the fall of foreign materials such as sand grains during the casting process and improve the casting quality makes pattern drawing easy and convenient.
Description
Technical field
The utility model relates to casting field, is specifically related to a kind of blind riser that is used to cast.
Background technology
As shown in Figure 1, existing blind riser comprises and is located in the molding sand layer 2 the blind riser main body 1 corresponding with foundry goods chamber 6, described blind riser main body 1 center of top is provided with gas outlet 3, described molding sand layer 2 central authorities are provided with the venthole 4 corresponding with gas outlet 3, general this venthole 4 is produced with molding sand layer 2, identical with molding sand layer 2 material, foundry goods chamber 6 is swabbings, has very high refractoriness, the sand grains that can not drop during high temperature, and venthole 4 is brushes less than coating, when molten metal enters foundry goods chamber 6, can be from a large amount of flames of venthole 4 ejections, have very high temperature, the molding sand of venthole 4 peripheries is roasting loosening, make sand grains 5 serious coming off, fall into foundry goods chamber 6, bring burning into sand to foundry goods, defective such as be mingled with.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of blind riser, can avoid dropping of foreign material such as sand grains in the casting process, improves the quality of foundry goods, makes molding simple, convenient.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: a kind of blind riser, comprise and be located at the blind riser main body corresponding in the molding sand layer with the foundry goods chamber, described blind riser main body center of top is provided with the gas outlet, described molding sand layer central authorities are provided with the venthole corresponding with the gas outlet, and described venthole sidewall is provided with the high-temperature-resistant layer corresponding with the gas outlet.
As preferably, described high-temperature-resistant layer adopts the earthenware structure.High-temperature resistant result is good.
Beneficial effect:
The utility model adopts technique scheme that a kind of blind riser is provided, and avoided dropping of foreign material such as sand grains in the casting process, improved the quality of foundry goods, makes molding simple, convenient.
Description of drawings
Fig. 1 is the structural representation of existing blind riser;
Fig. 2 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 2, a kind of blind riser, comprise and be located in the molding sand layer 2 the blind riser main body 1 corresponding with foundry goods chamber 6, described blind riser main body 1 center of top is provided with gas outlet 3, described molding sand layer 2 central authorities are provided with the venthole 4 corresponding with gas outlet 3, and described venthole 4 sidewalls are provided with the high-temperature-resistant layer 7 corresponding with gas outlet 3.Described high-temperature-resistant layer 7 adopts the earthenware structure.Avoid dropping of foreign material such as sand grains in the casting process, improved the quality of foundry goods, made molding simple, convenient.
Claims (2)
1. blind riser, comprise and be located at the blind riser main body (1) corresponding in the molding sand layer (2) with foundry goods chamber (6), described blind riser main body (1) center of top is provided with gas outlet (3), described molding sand layer (2) central authorities are provided with the venthole (4) corresponding with gas outlet (3), it is characterized in that: described venthole (4) sidewall is provided with the high-temperature-resistant layer (7) corresponding with gas outlet (3).
2. a kind of blind riser according to claim 1 is characterized in that: described high-temperature-resistant layer (7) adopts the earthenware structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202996565U CN201744613U (en) | 2010-08-18 | 2010-08-18 | Blind riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202996565U CN201744613U (en) | 2010-08-18 | 2010-08-18 | Blind riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201744613U true CN201744613U (en) | 2011-02-16 |
Family
ID=43579288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202996565U Expired - Lifetime CN201744613U (en) | 2010-08-18 | 2010-08-18 | Blind riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201744613U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905286A (en) * | 2010-08-18 | 2010-12-08 | 中核苏阀横店机械有限公司 | Blind riser |
| CN104014743A (en) * | 2014-06-19 | 2014-09-03 | 大连金河铸造有限公司 | Improvement technique for casting guide rail casting |
| CN107695297A (en) * | 2017-09-27 | 2018-02-16 | 安徽应流集团霍山铸造有限公司 | Blind riser heating pressure-maintaining structure |
-
2010
- 2010-08-18 CN CN2010202996565U patent/CN201744613U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905286A (en) * | 2010-08-18 | 2010-12-08 | 中核苏阀横店机械有限公司 | Blind riser |
| CN104014743A (en) * | 2014-06-19 | 2014-09-03 | 大连金河铸造有限公司 | Improvement technique for casting guide rail casting |
| CN104014743B (en) * | 2014-06-19 | 2015-11-11 | 大连金河铸造有限公司 | The improving technique of guide rail cast casting |
| CN107695297A (en) * | 2017-09-27 | 2018-02-16 | 安徽应流集团霍山铸造有限公司 | Blind riser heating pressure-maintaining structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |