CN111036851A - Welt blind riser for pouring - Google Patents
Welt blind riser for pouring Download PDFInfo
- Publication number
- CN111036851A CN111036851A CN201911333114.7A CN201911333114A CN111036851A CN 111036851 A CN111036851 A CN 111036851A CN 201911333114 A CN201911333114 A CN 201911333114A CN 111036851 A CN111036851 A CN 111036851A
- Authority
- CN
- China
- Prior art keywords
- blind riser
- riser
- feeding
- blind
- welt
- 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.)
- Pending
Links
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 238000012986 modification Methods 0.000 abstract description 8
- 230000004048 modification Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007531 graphite casting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a welting blind riser for pouring, which comprises a blind riser body, wherein the blind riser body is arranged on a lower die and comprises an arc-shaped groove, two feeding channels and two feeding processing holes, the two feeding processing holes are communicated with the arc-shaped groove through the feeding channels, the side of the blind riser body of the lower die is attached to a product port, the feeding processing holes are aligned with a control boss of the product port, and a sand core riser is arranged on the arc-shaped groove of the blind riser body. The tadpole-shaped welt riser is combined by the arc-shaped grooves, the feeding channels and the feeding processing holes, has a simple structure, is stable and durable, and radically solves the problem of controlling boss shrinkage porosity, so that the quality of cast products is improved, and the effect is very obvious. The shrinkage porosity is increased from 90% before modification to no shrinkage porosity after modification.
Description
Technical Field
The invention relates to the technical field of pouring, in particular to a welting blind riser for pouring.
Background
In the technical field of pouring, the feeding of the ordinary riser can only adopt a cylindrical riser, an elliptical riser, a square riser and a free riser, and cannot solve the problem of shrinkage porosity at positions limited by certain positions and wall thickness. The defect of shrinkage porosity of the casting reduces the quality of the casting and also reduces the qualification rate of the casting.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a welting blind riser for pouring.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a pouring is with welt blind riser, includes the blind riser body, its characterized in that, the blind riser body sets up on the bed die, and the blind riser body includes convex recess, two feeding passageways and two feeding processing holes, and two feeding processing holes all communicate with convex recess through feeding passageway, and the blind riser body side and the laminating of product port of bed die, and feeding processing hole and the control boss of product port align, are equipped with the psammitolite rising head on the convex recess of blind riser body.
The sand core riser is positioned in the inner cavity of the product and is attached to the side wall of the inner cavity of the product.
The sand core riser is provided with a tapered hole, and the tapered hole is communicated with the arc-shaped groove.
One side of the conical hole, which is far away from the lower die, is provided with heat insulation cotton.
The invention has the beneficial effects that: the tadpole-shaped welt riser is combined by the arc-shaped grooves, the feeding channels and the feeding processing holes, has a simple structure, is stable and durable, and radically solves the problem of controlling boss shrinkage porosity, so that the quality of cast products is improved, and the effect is very obvious. The shrinkage porosity is increased from 90% before modification to no shrinkage porosity after modification.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural view of a product;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a schematic view of the connection between the blind riser body and the product;
FIG. 7 is a schematic view of the connection of the lower mold to the product;
in the figure: 1-blind riser body; 2-lower mould; 3-arc-shaped groove; 4-feeding the channel; 5-feeding and processing holes; 6-products; 7-sand core riser; 8-a tapered hole; 9-heat preservation cotton;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 7, the welting blind riser for pouring comprises a blind riser body 1, and is characterized in that the blind riser body 1 is arranged on a lower die 2, the blind riser body 1 comprises an arc-shaped groove 3, two feeding channels 4 and two feeding processing holes 5, the two feeding processing holes 5 are communicated with the arc-shaped groove 3 through the feeding channels 4, the side of the blind riser body 1 of the lower die 2 is attached to a port of a product 6, the feeding processing holes 5 are aligned with a control boss of the port of the product 6, and a sand core riser 7 is arranged on the arc-shaped groove 3 of the blind riser body 1.
The sand core riser 7 is positioned in the inner cavity of the product 6 and is attached to the side wall of the inner cavity of the product 6.
The sand core riser 7 is provided with a taper hole 8, and the taper hole 8 is communicated with the circular arc-shaped groove 3.
One side of the conical hole 8, which is far away from the lower die 2, is provided with heat insulation cotton 9, and the heat insulation cotton 9 is used for insulating the sand core riser 7, so that the casting quality of the product 6 is improved.
When the artificial graphite casting head works, the blind riser body 1 is buckled at the end opening of a product 6, the feeding processing hole 5 is attached to a control boss of the product 6, the arc-shaped groove 3, the feeding channel 4 and the feeding processing hole 5 are combined into the tadpole type edge fitting riser, the feeding efficiency of the tadpole type edge fitting riser is higher than that of a clear riser with the same volume, no sundries enter a cavity after the tadpole type edge fitting riser is attached to the sand core riser 7 in molding operation, the heat insulation cotton 9 forms sufficient temperature gradient temperature difference, and the control boss of the product 6 is effectively fed. The invention has simple structure, stability and durability, and radically solves the problem of boss shrinkage porosity control, thereby improving the quality of cast products and having very obvious effect. The shrinkage porosity is increased from 90% before modification to no shrinkage porosity after modification.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the invention, and all such modifications and variations are within the scope of the invention.
Claims (4)
1. The utility model provides a pouring is with welt blind riser, including blind riser body (1), a serial communication port, blind riser body (1) sets up on bed die (2), blind riser body (1) includes convex recess (3), two feeding passageway (4) and two feeding fabrication hole (5), two feeding fabrication hole (5) all communicate with convex recess (3) through feeding passageway (4), blind riser body (1) side and the laminating of product (6) port of bed die (2), and feeding fabrication hole (5) align with the control boss of product (6) port, be equipped with rising head (7) on convex recess (3) of blind riser body (1).
2. The welt blind riser for casting according to claim 1, wherein the sand core riser (7) is positioned in the inner cavity of the product (6) and is attached to the side wall of the inner cavity of the product (6).
3. The welt blind riser for casting according to claim 2, wherein a tapered hole (8) is formed in the sand core riser (7), and the tapered hole (8) is communicated with the circular arc-shaped groove (3).
4. The welt blind riser for pouring according to claim 3, wherein the side of the tapered hole (8) away from the lower mold (2) is provided with heat insulation cotton (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333114.7A CN111036851A (en) | 2019-12-23 | 2019-12-23 | Welt blind riser for pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333114.7A CN111036851A (en) | 2019-12-23 | 2019-12-23 | Welt blind riser for pouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111036851A true CN111036851A (en) | 2020-04-21 |
Family
ID=70237342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911333114.7A Pending CN111036851A (en) | 2019-12-23 | 2019-12-23 | Welt blind riser for pouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111036851A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201940532U (en) * | 2011-02-10 | 2011-08-24 | 山西华翔投资有限公司 | Sand mold of riser for placement of horizontal projected shoulder of casting |
| CN203887160U (en) * | 2014-05-09 | 2014-10-22 | 山东联诚集团有限公司 | Mould structure for facilitating feeding of vibration-reducing wheel |
| CN105215271A (en) * | 2015-10-29 | 2016-01-06 | 共享铸钢有限公司 | A kind of cored-up mould sand mould structure of gear box casing foundry goods and cored-up mould method |
| CN110586870A (en) * | 2019-09-16 | 2019-12-20 | 四川省金镭重工有限公司 | Novel casting system and method for bent pipe steel casting |
| CN212042548U (en) * | 2019-12-23 | 2020-12-01 | 天津市航宇嘉瑞科技股份有限公司 | Welt blind riser for pouring |
-
2019
- 2019-12-23 CN CN201911333114.7A patent/CN111036851A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201940532U (en) * | 2011-02-10 | 2011-08-24 | 山西华翔投资有限公司 | Sand mold of riser for placement of horizontal projected shoulder of casting |
| CN203887160U (en) * | 2014-05-09 | 2014-10-22 | 山东联诚集团有限公司 | Mould structure for facilitating feeding of vibration-reducing wheel |
| CN105215271A (en) * | 2015-10-29 | 2016-01-06 | 共享铸钢有限公司 | A kind of cored-up mould sand mould structure of gear box casing foundry goods and cored-up mould method |
| CN110586870A (en) * | 2019-09-16 | 2019-12-20 | 四川省金镭重工有限公司 | Novel casting system and method for bent pipe steel casting |
| CN212042548U (en) * | 2019-12-23 | 2020-12-01 | 天津市航宇嘉瑞科技股份有限公司 | Welt blind riser for pouring |
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