CN102407290A - Blind riser with atmospheric mud core - Google Patents
Blind riser with atmospheric mud core Download PDFInfo
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- CN102407290A CN102407290A CN2011103925621A CN201110392562A CN102407290A CN 102407290 A CN102407290 A CN 102407290A CN 2011103925621 A CN2011103925621 A CN 2011103925621A CN 201110392562 A CN201110392562 A CN 201110392562A CN 102407290 A CN102407290 A CN 102407290A
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- mud core
- riser
- blind riser
- atmospheric
- main body
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Abstract
The invention discloses a blind riser with an atmospheric mud core. The blind riser comprises a riser main body, and the top of the riser main body is provided with a mud core hole. By using the blind riser disclosed by the invention, a procedure for manufacturing a small mud core in an atmospheric riser and a procedure of inserting the small mud core into a cavity in the process of mould assembling in the traditional process are avoided, therefore, the blind riser is convenient to manufacture and easy to use; meanwhile, a lot of manpower and material resources are saved, the feeding effect is good, and the positioning of the atmospheric mud core is accurate.
Description
Technical field
The present invention relates to casting field, be specifically related to a kind of blind riser that carries atmospheric pressure mud core.
Background technology
As shown in Figure 1, often adopt common blind riser in the sand casting, generally speaking; Rising head main body 1 is placed on the foundry goods chamber 6 that is positioned at drag box 5 between cope 4 and the drag box 5, between cope 4 and the rising head main body 1 venthole 7 is arranged, in order to improve the feeding capacity of rising head; Usually to insert 1 to 2 columniform little mud core 3 at the top of rising head main body 1; Its operation principle is: after the cast, molten steel is heated to very high temperature with little mud core 3, makes little mud core 3 molten steel solidification on every side slow; Guaranteeing that rising head main body 1 can be communicated with atmospheric pressure through little mud core 3 in the process of feeding does not all the time produce vacuum, thereby the feeding efficiency of raising rising head.The making of atmospheric riser originally must have 2 processes: 1, make little mud core 3; 2, little mud core 3 is inserted in the die cavity of rising head main bodys 1 during mould assembling, technology comparatively bothers.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of blind riser that carries atmospheric pressure mud core, and is easy to make, uses simply, and feeding is effective, the accurate positioning of atmospheric pressure mud core.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of blind riser that carries atmospheric pressure mud core, comprise the rising head main body, and the top of said rising head main body is provided with mud core hole.
As preferably, said mud core hole is adopted conical.The circular cone tip than columniform better effects if, has been improved the feeding efficiency of rising head by the fuel factor of molten steel heating generation more.
As preferably, the cone angle in said mud core hole adopts 60 °-90 °.When dropping on this scope, mud core hole cone angle forms the mud core easily.
As preferably, the cone angle in said mud core hole adopts 75 °.There is feeding efficiency preferably the circular cone tip when being 75 °.
Beneficial effect:
The present invention adopts technique scheme that a kind of blind riser that carries atmospheric pressure mud core is provided; Removed the production process of little mud core insertion die cavity when making little mud core and mould assembling in the original atmospheric riser from; Easy to make, use simply, saved great amount of manpower and material resources; Feeding is effective, the accurate positioning of atmospheric pressure mud core.
Description of drawings
Fig. 1 is the structural representation of common rising head;
Fig. 2 is a structural representation of the present invention.
The specific embodiment
As shown in Figure 2, a kind of blind riser that carries atmospheric pressure mud core comprises rising head main body 1, and the top of said rising head main body 1 is provided with mud core hole 2.Said mud core hole 2 is adopted conical.The cone angle in said mud core hole 2 adopts 60 °-90 °, and preferred version is 75 °.
After the actual cast; Molten steel is heated to very high temperature with conical mud core hole 2, makes the molten steel solidification around the mud core hole 2 slower, guarantees that rising head main body 1 can be communicated with atmospheric pressure all the time not produce vacuum in the process of feeding; It is more accurate to locate, and has improved the feeding efficiency of blind riser.Because this structure can have been removed the twice production process of little mud core 3 insertion die cavities when making little mud core 3 with mould assembling in the original atmospheric riser from as the mud core hole 2 of mud core from being provided with, and has saved great amount of manpower and material resources.
Claims (4)
1. a blind riser that carries atmospheric pressure mud core comprises rising head main body (1), it is characterized in that: the top of said rising head main body (1) is provided with mud core hole (2).
2. a kind of blind riser that carries atmospheric pressure mud core according to claim 1 is characterized in that: said mud core hole (2) is adopted conical.
3. a kind of blind riser that carries atmospheric pressure mud core according to claim 2 is characterized in that: the cone angle in said mud core hole (2) adopts 60 °-90 °.
4. a kind of blind riser that carries atmospheric pressure mud core according to claim 3 is characterized in that: the cone angle in said mud core hole (2) adopts 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103925621A CN102407290A (en) | 2011-12-01 | 2011-12-01 | Blind riser with atmospheric mud core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103925621A CN102407290A (en) | 2011-12-01 | 2011-12-01 | Blind riser with atmospheric mud core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102407290A true CN102407290A (en) | 2012-04-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103925621A Pending CN102407290A (en) | 2011-12-01 | 2011-12-01 | Blind riser with atmospheric mud core |
Country Status (1)
| Country | Link |
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| CN (1) | CN102407290A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588586A (en) * | 2015-01-28 | 2015-05-06 | 安庆雅德帝伯活塞有限公司 | Processing device of drop-shaped piston ring shore riser |
| CN104646627A (en) * | 2015-01-29 | 2015-05-27 | 夏平桂 | Smokeless casting process for gravity casting mould |
| 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 |
| CN109648045A (en) * | 2019-02-21 | 2019-04-19 | 无锡烨隆精密机械股份有限公司 | A kind of heat-resistance stainless steel turbine shroud atmospheric feeder ventilation sand core component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419422A (en) * | 1977-07-13 | 1979-02-14 | Mitsubishi Heavy Ind Ltd | Casting method using reduceddpressure mold having blind 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 |
| CN201969838U (en) * | 2011-03-15 | 2011-09-14 | 中核苏阀横店机械有限公司 | Heat insulation blind riser |
| CN102198489A (en) * | 2011-05-13 | 2011-09-28 | 无锡小天鹅精密铸造有限公司 | Insulation riser and moulding method thereof |
| CN202291270U (en) * | 2011-12-01 | 2012-07-04 | 中核苏阀横店机械有限公司 | Blind riser with atmospheric pressure sand core |
-
2011
- 2011-12-01 CN CN2011103925621A patent/CN102407290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419422A (en) * | 1977-07-13 | 1979-02-14 | Mitsubishi Heavy Ind Ltd | Casting method using reduceddpressure mold having blind 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 |
| CN201969838U (en) * | 2011-03-15 | 2011-09-14 | 中核苏阀横店机械有限公司 | Heat insulation blind riser |
| CN102198489A (en) * | 2011-05-13 | 2011-09-28 | 无锡小天鹅精密铸造有限公司 | Insulation riser and moulding method thereof |
| CN202291270U (en) * | 2011-12-01 | 2012-07-04 | 中核苏阀横店机械有限公司 | Blind riser with atmospheric pressure sand core |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588586A (en) * | 2015-01-28 | 2015-05-06 | 安庆雅德帝伯活塞有限公司 | Processing device of drop-shaped piston ring shore riser |
| CN104646627A (en) * | 2015-01-29 | 2015-05-27 | 夏平桂 | Smokeless casting process for gravity casting mould |
| 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 |
| CN109648045A (en) * | 2019-02-21 | 2019-04-19 | 无锡烨隆精密机械股份有限公司 | A kind of heat-resistance stainless steel turbine shroud atmospheric feeder ventilation sand core component |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |