CN202715777U - Exothermic riser neck structure of casting - Google Patents
Exothermic riser neck structure of casting Download PDFInfo
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- CN202715777U CN202715777U CN 201220410869 CN201220410869U CN202715777U CN 202715777 U CN202715777 U CN 202715777U CN 201220410869 CN201220410869 CN 201220410869 CN 201220410869 U CN201220410869 U CN 201220410869U CN 202715777 U CN202715777 U CN 202715777U
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- riser neck
- exothermic
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Abstract
The utility model discloses a riser structure of a casting, and provides an exothermic riser neck structure of a casting, and according to the exothermic riser neck structure of the casting, shrinkage cavities of iron castings can be reduced, cutting after casting molding is needless, and the casting of a riser can be directly knocked off. The exothermic riser neck structure of the casting solves the technical problems that in the prior art, manual hot spots are easily formed on the iron castings, casting shrinkage cavities are caused, the riser has to be cut off, time and labor are wasted, and the like. A cavity of a riser neck comprises a funnel-shaped padding cavity and a rectangular lead-in cavity communicating with the lower end of the padding cavity. The rectangular lead-in cavity is communicated with the casting, an annular groove is arranged on an inner wall face of the rectangular lead-in cavity corresponding to the casting side, and the outer side face of the annular groove is connected with the casting.
Description
Technical field
The utility model relates to a kind of dead head structure of foundry goods, relates in particular to a kind of directly exothermic riser neck structure of the foundry goods of abate rising head that improves after Quality of Iron Casting, the moulding.
Background technology
Rising head is for avoiding foundry goods the additional part that defective is attached to foundry goods top or side to occur, in casting mold, the die cavity of rising head is the cavity of storage liquid metal, supply metal when foundry goods forms, prevent shrinkage cavity, shrinkage porosite, the effect of exhaust and collection slag, the Main Function of rising head is feeding, it generally is divided into common rising head, three kinds of insulated feeder and exothermic risers, the rising head of making of common Modeling Material is at common rising head, and the rising head of making of insulation material is insulated feeder, molten metal in the insulated feeder is longer than common rising head setting time, saves metal, and exothermic riser is to have added exothermic mixture in emitting gate material, after pouring into molten metal, exothermic mixture reaction heating makes molten metal can keep the longer time under liquid state, more saves metal than insulated feeder.Existing exothermic riser neck generally is infundibulate, its die cavity is rounded, generally be used for steel-casting, but there is following defective in it when ironcasting uses: the one, form artificial thermal center, and cause the foundry goods shrinkage cavity, the 2nd, the connecting portion bonding strength between exothermic riser neck and the foundry goods is high, be with easily meat during abate, therefore foundry goods can't the abate rising head, can only cut, and wastes time and energy.
Summary of the invention
The utility model has mainly provided a kind of ironcasting shrinkage cavity that reduces, and need not cut after the foundry goods moulding, the direct exothermic riser neck structure of the foundry goods of abate rising head, solve the ironcasting that exists in the prior art and easily formed artificial thermal center, cause the foundry goods shrinkage cavity, and can only cut rising head, the technical problem that wastes time and energy etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of exothermic riser neck structure of foundry goods, the die cavity of described riser neck comprises funnel shaped filling chamber and is communicated with at the rectangle introduction chamber of filling the lower end, chamber, the rectangle introduction chamber is connected with foundry goods, be provided with annular groove at the rectangle introduction chamber internal face corresponding to the foundry goods side, the lateral surface of annular groove is connected with foundry goods.By the lower end, funnel shaped filling chamber at former riser neck the rectangle introduction chamber that links to each other with foundry goods is set, can effectively reduces thermal center, reduce the shrinkage porosite tendency of foundry goods under the riser neck, guaranteed the quality of foundry goods; By the lower end at riser neck the annular groove that links to each other with foundry goods is set, annular groove has namely formed the rising head subsidy, and directly abate of rising head is time saving and energy saving, has improved operating efficiency.
As preferably, described annular groove is identical with the coaxial setting of rectangle introduction chamber and shape.Guarantee the rising head subsidy uniformity that annular groove forms, guarantee casting quality.
As preferably, described filling chamber links to each other with the rectangle introduction chamber is coaxial.Guarantee that the supply of foundry goods metal is consistent, prevent shrinkage cavity and porosity, exhaust and collection slag phenomenon.
As preferably, the degree of depth of described annular groove is 2mm to 5mm, and width is 2mm to 5mm.Reasonably the annular groove size both can guarantee the light abate of rising head, can guarantee casting quality again.
As preferably, the height of described riser neck is 20mm to 30mm.Riser neck height commonly used is generally about 10mm, by increasing the riser neck height, can further reduce thermal center, reduces the shrinkage porosite tendency of foundry goods, guarantees the quality of foundry goods.
As preferably, the length of described rectangle introduction chamber accounts for 55% to 70% of riser neck die cavity length.The length of enough rectangle introduction chambers can effectively reduce foundry goods shrinkage cavity and porosity, exhaust and collection slag phenomenon, is conducive to guarantee casting quality.
As preferably, described riser neck top extends upward the formation annular boss.Annular boss is convenient to the molten metal of annotating.
Therefore, the exothermic riser neck structure of foundry goods of the present utility model has following advantage: by connecting in lower end, former funnel shaped filling chamber the rectangle introduction chamber that links to each other with foundry goods is set, can effectively reduce the foundry goods thermal center, reduce the shrinkage porosite tendency of foundry goods under the riser neck, improve the quality of foundry goods; By the lower end at riser neck the annular groove that links to each other with foundry goods is set, makes foundry goods form the rising head subsidy at the annular groove place, can not damage foundry goods when guaranteeing the rising head abate, time saving and energy saving, high efficiency; Increase the riser neck height, can further reduce thermal center, reduce the shrinkage porosite tendency of foundry goods, guarantee the quality of foundry goods.
Description of drawings:
Fig. 1 is the axial cutaway view of the exothermic riser neck structure of the utility model foundry goods;
Fig. 2 is top view of the present utility model.
The specific embodiment:
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in Figure 1, the exothermic riser neck structure of a kind of foundry goods of the present utility model is mainly used in ironcasting, the riser neck height overall is 25 mm, its die cavity comprises funnel shaped filling chamber 11 and rectangle introduction chamber 12, rectangle introduction chamber 12 coaxial communication directly are connected with foundry goods 2 in the lower end of filling chamber 11, and the length of rectangle introduction chamber 12 is 15 mm, have an annular groove 3 at rectangle introduction chamber 12 internal faces corresponding to foundry goods 2 sides, the lateral surface of annular groove 3 is connected with foundry goods 2, as shown in Figure 2, annular groove 3 is identical with the 12 coaxial settings of rectangle introduction chamber and shape, the degree of depth of annular groove 3 is 3mm, width is 3.5 mm, and the top of riser neck extends upward and forms an annular boss 4.
Specific embodiment described herein only is to design of the present utility model explanation for example.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. the exothermic riser neck structure of a foundry goods, it is characterized in that: the die cavity of described riser neck comprises funnel shaped filling chamber (11) and is communicated with at the rectangle introduction chamber (12) of filling lower end, chamber (11), rectangle introduction chamber (12) is connected with foundry goods (2), be provided with annular groove (3) at rectangle introduction chamber (12) internal face corresponding to foundry goods (2) side, the lateral surface of annular groove (3) is connected with foundry goods (2).
2. the exothermic riser neck structure of foundry goods according to claim 1, it is characterized in that: described annular groove (3) is identical with the coaxial setting of rectangle introduction chamber (12) and shape.
3. the exothermic riser neck structure of foundry goods according to claim 1 and 2 is characterized in that: described filling chamber (11) and coaxial linking to each other of rectangle introduction chamber (12).
4. the exothermic riser neck structure of foundry goods according to claim 1 and 2, it is characterized in that: the degree of depth of described annular groove (3) is 2mm to 5mm, width is 2mm to 5mm.
5. the exothermic riser neck structure of foundry goods according to claim 1 and 2, it is characterized in that: the height of described riser neck is 20mm to 30mm.
6. the exothermic riser neck structure of foundry goods according to claim 1 and 2, it is characterized in that: the length of described rectangle introduction chamber (12) accounts for 55% to 70% of riser neck die cavity length.
7. the exothermic riser neck structure of foundry goods according to claim 1 and 2 is characterized in that: described riser neck top extends upward and forms annular boss (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410869 CN202715777U (en) | 2012-08-20 | 2012-08-20 | Exothermic riser neck structure of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410869 CN202715777U (en) | 2012-08-20 | 2012-08-20 | Exothermic riser neck structure of casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202715777U true CN202715777U (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220410869 Expired - Fee Related CN202715777U (en) | 2012-08-20 | 2012-08-20 | Exothermic riser neck structure of casting |
Country Status (1)
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| CN (1) | CN202715777U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618685A (en) * | 2015-12-30 | 2016-06-01 | 大连船用推进器有限公司 | Large fixed pitch propeller casting riser structure and manufacturing method thereof |
| CN107774914A (en) * | 2017-12-12 | 2018-03-09 | 重庆乐迪机车车辆配件有限公司 | A kind of exothermic riser neck structure of casting |
| CN110196180A (en) * | 2019-07-01 | 2019-09-03 | 广西玉柴机器股份有限公司 | A kind of method for making sample that may be implemented quickly to detect nitrogen component |
-
2012
- 2012-08-20 CN CN 201220410869 patent/CN202715777U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618685A (en) * | 2015-12-30 | 2016-06-01 | 大连船用推进器有限公司 | Large fixed pitch propeller casting riser structure and manufacturing method thereof |
| CN105618685B (en) * | 2015-12-30 | 2017-12-29 | 大连船用推进器有限公司 | A kind of large-scale constant pitch airscrew casting dead head structure and its manufacture method |
| CN107774914A (en) * | 2017-12-12 | 2018-03-09 | 重庆乐迪机车车辆配件有限公司 | A kind of exothermic riser neck structure of casting |
| CN110196180A (en) * | 2019-07-01 | 2019-09-03 | 广西玉柴机器股份有限公司 | A kind of method for making sample that may be implemented quickly to detect nitrogen component |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20150820 |
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| EXPY | Termination of patent right or utility model |