CN204108284U - Non-ferrous alloy low pressure casting die - Google Patents
Non-ferrous alloy low pressure casting die Download PDFInfo
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- CN204108284U CN204108284U CN201420441850.0U CN201420441850U CN204108284U CN 204108284 U CN204108284 U CN 204108284U CN 201420441850 U CN201420441850 U CN 201420441850U CN 204108284 U CN204108284 U CN 204108284U
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- rising head
- low pressure
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- ferrous alloy
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Abstract
The utility model discloses a kind of non-ferrous alloy low pressure casting die, include die ontology (1), described die ontology (1) top is provided with rising head (2), and described rising head is blind riser, and the shape of described rising head (2) is set to positive taper.The utility model is forbidden on blind riser top to install exhaust apparatus, during cast, rising head top encloses partial air, air ensures that aluminium water and upper end mould completely cut off on the one hand, play the effect of insulation, delay the setting rate of aluminium water in rising head, expand after air heats on the other hand, counter-pressure is formed to aluminium water surface, enhances the feeding effect of blind riser.It is simple that the utility model has structure, easy to operate, and solution foundry goods top shrinkage cavity is respond well, effectively improves Internal Quality of Cast.
Description
Technical field
The utility model relates to non-ferrous alloy low pressure casting die field, is specially a kind of pressure feeding device of having
non-ferrous alloy low pressure castingmould.
Background technology
At present, low pressure casting industry is for the thinner foundry goods in thick large centre, two ends, following three kinds of methods are generally taked to solve the Shrinkage Problem on foundry goods top: 1) in order to meet consecutive solidification principle when ensureing casting solidification, technique subsidy must be set in foundry goods middle part, comparatively large for waste of raw materials, cause processing technology to subsidize waste in man-hour.2) in order to meet consecutive solidification principle when ensureing casting solidification, auxiliary feeding running channel must be offered, causing raw material scaling loss to be wasted larger.3) follow and solidify principle simultaneously, arrange copper billet or water-cooled, the Quench measure such as air-cooled at the position away from cast gate, object ensures to solidify together with cast gate away from cast gate position by Quench measure.This kind of method is comparatively large owing to controlling difficulty, is difficult to the Shrinkage Problem solving Quench position completely, less stable.
Utility model content
The utility model, for above weak point, provides a kind of
non-ferrous alloy low pressure castingmould, it is comparatively large that this mould efficiently solves two ends wall thickness, the far-end Shrinkage Problem that the foundry goods that middle wall thickness is thinner causes not due to feeding distance.
The utility model solves the technical scheme that its technical problem adopts: a kind of non-ferrous alloy low pressure casting die, includes die ontology, and described die ontology top is provided with rising head, and described rising head is blind riser, and the shape of described rising head is set to positive taper.
Further, described rising head internal spray thermal insulation coatings.
Further, in described rising head, exhaust apparatus is not set.
Further, described rising head is set to the positive taper along week 5 °.
Beneficial aspects of the present utility model is: also arrange rising head on the top of low die casting, but must arrange blind riser, and is arranged to positive tapered riser.Forbid on blind riser top exhaust measure is installed, during cast, rising head top encloses partial air, air ensures that aluminium water and upper end mould completely cut off on the one hand, play the effect of insulation, delay the setting rate of aluminium water in rising head, expand after air heats on the other hand, counter-pressure is formed to aluminium water surface, enhances the feeding effect of blind riser.It is simple that the utility model has structure, easy to operate, and solution foundry goods top shrinkage cavity is respond well, effectively improves Internal Quality of Cast.
Accompanying drawing illustrates:
Figure 1 shows that product embodiments schematic diagram of the present utility model;
Figure 2 shows that Die Embodiment schematic diagram of the present utility model;
Figure 3 shows that mould schematic diagram of the present utility model.
Detailed description of the invention
A kind of non-ferrous alloy low pressure casting die, include die ontology 1, described die ontology 1 top is provided with rising head 2, be communicated with the foundry goods draw district of mould 1, described rising head 2 is blind riser, the shape of described rising head 2 is set to the positive taper along week 5 °, and rising head 2 internal spray thermal insulation coatings, does not arrange exhaust apparatus in rising head 2.
Now by reference to the accompanying drawings
2be further described the utility model, Fig. 2 is one of the present utility model
mouldembodiment, melt enters mold cavity 4 by cast gate 3, melt Stable Filling from bottom to top in mold cavity 4, after being full of die cavity 4, melt enters the pressure riser 2 being arranged in mould 1 top, pressure riser 2 is designed to the positive taper along week 5 °, be convenient to solidify the rear smooth demoulding, because rising head 2 internal spray has thermal insulation coatings, completely cut off the contact of melt and die ontology 1, reduce the setting rate of melt, make the melt in rising head 2 be later than foundry goods draw district to solidify, ensure that foundry goods draw district shrinks and solidify required melt supply, when after the melt solidifying in mold cavity 4, mould and foundry goods are departed from.
Particularly importantly forbid in rising head 2 to offer exhaust measure, rising head 2 top seal partial air during cast, air ensures that aluminium water and upper end mould completely cut off on the one hand, completely cut off the heat exchange of aluminium water and mould 1, play the effect of insulation, delayed the setting rate of aluminium water in rising head, expand after air heats on the other hand, counter-pressure is formed to aluminium water surface, enhances the feeding effect of blind riser.
In the utility model, described pressure riser is directly opened on mould top cover, and in use procedure, rising head is interior does not need to increase other auxiliary material except needing brushing thermal insulation coatings, for reaching desirable feeding effect, and the shape of required appropriate design rising head and volume.
It is simple that the utility model has structure, and feeding effect is good, easy to operate economic and practical feature.
Claims (4)
1. a non-ferrous alloy low pressure casting die, includes die ontology (1), it is characterized in that: described die ontology (1) top is provided with rising head (2), and described rising head (2) is blind riser, and the shape of described rising head (2) is set to positive taper.
2. non-ferrous alloy low pressure casting die according to claim 1, is characterized in that: described rising head (2) internal spray thermal insulation coatings.
3. non-ferrous alloy low pressure casting die according to claim 1 and 2, is characterized in that: described rising head does not arrange exhaust apparatus in (2).
4. non-ferrous alloy low pressure casting die according to claim 1, is characterized in that: described rising head (2) is set to the positive taper along week 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441850.0U CN204108284U (en) | 2014-08-07 | 2014-08-07 | Non-ferrous alloy low pressure casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441850.0U CN204108284U (en) | 2014-08-07 | 2014-08-07 | Non-ferrous alloy low pressure casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108284U true CN204108284U (en) | 2015-01-21 |
Family
ID=52325642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441850.0U Expired - Fee Related CN204108284U (en) | 2014-08-07 | 2014-08-07 | Non-ferrous alloy low pressure casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817603A (en) * | 2016-04-26 | 2016-08-03 | 安徽纯启动力机械有限公司 | Shrinkage-prevention die casting die |
| CN107695298A (en) * | 2017-11-24 | 2018-02-16 | 天台县银兴机械铸造有限公司 | Engine rocker room mould with blind riser |
-
2014
- 2014-08-07 CN CN201420441850.0U patent/CN204108284U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817603A (en) * | 2016-04-26 | 2016-08-03 | 安徽纯启动力机械有限公司 | Shrinkage-prevention die casting die |
| CN107695298A (en) * | 2017-11-24 | 2018-02-16 | 天台县银兴机械铸造有限公司 | Engine rocker room mould with blind riser |
| CN107695298B (en) * | 2017-11-24 | 2024-01-09 | 浙江银兴机械股份有限公司 | Engine rocker arm chamber forming die with blind riser |
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Legal Events
| 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: 20150121 Termination date: 20150807 |
|
| EXPY | Termination of patent right or utility model |