CN101829762A - Insulation blind riser - Google Patents
Insulation blind riser Download PDFInfo
- Publication number
- CN101829762A CN101829762A CN 201010178844 CN201010178844A CN101829762A CN 101829762 A CN101829762 A CN 101829762A CN 201010178844 CN201010178844 CN 201010178844 CN 201010178844 A CN201010178844 A CN 201010178844A CN 101829762 A CN101829762 A CN 101829762A
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- CN
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- Prior art keywords
- main body
- rising head
- head main
- riser
- blind riser
- 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.)
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Abstract
The invention provides an insulation blind riser comprising a riser main body, wherein an air outlet hole is arranged at the top of the riser main body, and a lug boss corresponding to the air outlet hole is arranged at the inner side of the riser main body at the air outlet hole. The invention can effectively prevent the top of molten metal at the inner side of the riser from crusting, enables the feeding effect to be obvious, lowers cost and enhances casting quality.
Description
Technical field
The present invention relates to sand-cast and make the field, be specifically related to a kind of insulation blind riser.
Background technology
In the prior art, as shown in Figure 1, existing insulation blind riser comprises rising head main body 1, and the top of described rising head main body 1 is provided with venthole 2.As shown in Figure 2, molten metal 3 entered in the chamber from rising head main body 1 bottom when foundry goods was made, be full of rising head main body 1, in process of setting, foundry goods shrinks, the downward feeding of molten metal 3 meetings in the rising head main body 1, the inside top of rising head main body 1 belongs to smooth finish surface, be full of in the process of rising head main body 1 feeding at molten metal 3, because molten metal 3 tops and atmosphere contact area are little, atmospheric pressure is less, molten metal 3 is that the topmost of rising head main body 1 inboard condenses into shell easily at the top, and this class shell causes number of drawbacks such as foundry goods is inner loose in case formation will greatly reduce the feeding effect of rising head.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of insulation blind riser, can effectively prevent the inboard molten metal of rising head top crust, makes that the feeding effect is obvious, and cost reduces, and casting quality improves.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of insulation blind riser, comprise the rising head main body, and the top of described rising head main body is provided with venthole, and described rising head main body inboard is positioned at the venthole place and is provided with the boss corresponding with venthole.
As preferably, described boss is the cone boss.Increased the pressure of atmosphere, the feeding effect of molten metal is improved the rising head inner metal liquid.
Beneficial effect:
The present invention adopts technique scheme that a kind of insulation blind riser is provided, be positioned at the venthole place in rising head main body inboard and be provided with the boss corresponding, prevented the inboard molten metal of rising head top crust effectively, make that the feeding effect is obvious with venthole, cost reduces, and casting quality improves.
Description of drawings
Fig. 1 is the structural representation of existing insulation blind riser;
Fig. 2 is the use schematic diagram of existing insulation blind riser;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is a use schematic diagram of the present invention.
The specific embodiment
As shown in Figure 3, a kind of insulation blind riser comprises rising head main body 1, and the top of described rising head main body 1 is provided with venthole 2, and described rising head main body 1 inboard is positioned at venthole 2 places and is provided with the boss 4 corresponding with venthole 2.Described boss 4 is the cone boss.As shown in Figure 4, utilize boss 4 to increase the pressure of atmosphere to rising head main body 1 inner metal liquid 3, the upper surface of molten metal 3 forms a depression, increased contact area with atmosphere, avoided the feeding that causes because of upper surface crust not enough, improve the feeding effect of rising head effectively, reduced the formation of internal defect in cast, thereby improved the quality of foundry goods.
Claims (2)
1. an insulation blind riser comprises rising head main body (1), and the top of described rising head main body (1) is provided with venthole (2), it is characterized in that: described rising head main body (1) inboard is positioned at venthole (2) and locates to be provided with the boss (4) corresponding with venthole (2).
2. a kind of insulation blind riser according to claim 1 is characterized in that: described boss (4) is the cone boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010178844 CN101829762A (en) | 2010-05-20 | 2010-05-20 | Insulation blind riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010178844 CN101829762A (en) | 2010-05-20 | 2010-05-20 | Insulation blind riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101829762A true CN101829762A (en) | 2010-09-15 |
Family
ID=42714061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010178844 Pending CN101829762A (en) | 2010-05-20 | 2010-05-20 | Insulation blind riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101829762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091759A (en) * | 2011-03-15 | 2011-06-15 | 中核苏阀横店机械有限公司 | Heat insulation blind riser |
| CN106734929A (en) * | 2016-12-24 | 2017-05-31 | 句容市有色金属铸造厂 | A kind of rising head with heat insulation effect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559475A (en) * | 2009-05-18 | 2009-10-21 | 谢锦荣 | Waist-shaped insulated feeder |
| CN101559476A (en) * | 2009-05-18 | 2009-10-21 | 谢锦荣 | Cylindrical insulated feeder |
| CN201711493U (en) * | 2010-05-20 | 2011-01-19 | 中核苏阀横店机械有限公司 | Heat-insulating blind riser |
-
2010
- 2010-05-20 CN CN 201010178844 patent/CN101829762A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559475A (en) * | 2009-05-18 | 2009-10-21 | 谢锦荣 | Waist-shaped insulated feeder |
| CN101559476A (en) * | 2009-05-18 | 2009-10-21 | 谢锦荣 | Cylindrical insulated feeder |
| CN201711493U (en) * | 2010-05-20 | 2011-01-19 | 中核苏阀横店机械有限公司 | Heat-insulating blind riser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091759A (en) * | 2011-03-15 | 2011-06-15 | 中核苏阀横店机械有限公司 | Heat insulation blind riser |
| CN106734929A (en) * | 2016-12-24 | 2017-05-31 | 句容市有色金属铸造厂 | A kind of rising head with heat insulation effect |
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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: 20100915 |