CN203304490U - Lost foam casting sprue - Google Patents
Lost foam casting sprue Download PDFInfo
- Publication number
- CN203304490U CN203304490U CN2013203823779U CN201320382377U CN203304490U CN 203304490 U CN203304490 U CN 203304490U CN 2013203823779 U CN2013203823779 U CN 2013203823779U CN 201320382377 U CN201320382377 U CN 201320382377U CN 203304490 U CN203304490 U CN 203304490U
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- China
- Prior art keywords
- cup
- pouring
- running channel
- sprue
- lost foam
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- 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 utility model discloses a lost foam casting sprue. The sprue comprises a pouring gate (1) and a pouring cup (2), wherein the pouring cup (2) is arranged above the pouring gate (1). The sprue is characterized in that the pouring gate (1) and the pouring cup (2) are integrally arranged. By virtue of the structure, the pouring gate and the pouring cup connected with the pouring gate are directly manufactured together in a process of producing the sprue, and therefore, the pouring gate and the pouring cup are tightly connected without the generation of a clearance. In addition, the time and manpower for mounting the pouring cup are reduced by adopting the structure, so that the labor intensity is greatly reduced. The pouring gate and the pouring cup are closely sealed, the rate of finished product is improved, and the manufacturing cost of a cast piece is reduced.
Description
Technical field
The utility model relates to the Technology of EPC field, is specifically related to a kind of lost foam casting sprue.
Background technology
Lost foam casting, as a kind of emerging casting technique, has cast article any surface finish, dimensional accuracy advantages of higher.Wherein casting process use running channel comprise running channel 1 ', be arranged on the refractory material sprue cup 2 ' (as accompanying drawing 1) of running channel top, the two adopts split type connection.
Above-mentioned this structure first will be coated with at the inner surface of running channel 1 ' refractory masses and dry, after product-forming, filling out the running channel 1 ' that sand (molding sand) will be coated with refractory masses tamps with casting mold (model of final casting), and then at running channel 1 ' top placement refractory material sprue cup 2 ', the two is coupled together, so just cause the two connecting portion to be easy to occur the not tight phenomenon of envelope, in casting process due to Feng Buyan make molding sand along with the cast molten iron pour in casting mold, cast product-forming damage out causes scrapping of FCL product, cause the unstable product quality of cast.
If adopt, running channel and refractory material sprue cup are first connected and insert in molding sand again, the material that mostly is the Heavy Weights such as refractory due to refractory material sprue cup is made, and running channel is to be made by the light material of foamed material etc., the two is easy to because the refractory material sprue cup Heavy Weight makes the sprue fracture in inserting the molding sand process.
The utility model content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of sealing tight, thereby molding sand is difficult for entering the lost foam casting sprue that effectively guarantees the product quality of cast in casting mold.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of lost foam casting sprue, comprise running channel, and be arranged on the cup of running channel top, it is characterized in that: described running channel and cup are integrated setting.
Adopt said structure, when producing sprue, directly running channel and the cup be attached thereto are made together, therefore, the two connects closely, seamless appearance.In addition, this structure decrease time and the labour of cup are installed, thereby greatly alleviated labour intensity.The two sealing is tight, has improved the yield rate of product, has reduced the manufacturing cost of foundry goods.
As preferably, described running channel and cup junction twine has tied up the glass fibre layer of cloth.Adopt said structure, strengthened the bonding strength of cup and running channel, the two is easy fracture not, guarantees result of use.
As further preferred, described glass fibre layer of cloth is three layers, adopts said structure, has further strengthened the bonding strength of cup and running channel.
As preferably, described running channel is the foamed material running channel, and described cup is the foamed material cup, the identical foamed material that is of the two material, and lightweight, cost is low, is easy to install.
The accompanying drawing explanation
Fig. 1 prior art lost foam casting sprue structural representation.
As shown in the figure: 1 '. running channel, 2 '. refractory material sprue cup.
Fig. 2 the utility model lost foam casting sprue structural representation.
As shown in the figure: 1. running channel, 2. cup, 3. glass fibre layer of cloth.
The specific embodiment
Below in conjunction with accompanying drawing, further describe this method by specific embodiment, but the utility model not only is confined to following examples.
As shown in Figure 2, lost foam casting sprue of the present utility model, comprise running channel 1, is arranged on the cup 2 of running channel 1 top, it is characterized in that: described running channel 1 is integrated setting with cup 2.
Adopt said structure, when producing sprue, directly running channel and the cup be attached thereto are made together, therefore, the two connects closely, seamless appearance.In addition, this structure decrease time and the labour of cup are installed, thereby greatly alleviated labour intensity.The two sealing is tight, has improved the yield rate of product, has reduced the manufacturing cost of foundry goods.
Described running channel 1 twines and has tied up glass fibre layer of cloth 3 with cup 2 junctions.Adopt said structure, strengthened the bonding strength of cup and running channel, the two is easy fracture not, guarantees result of use.Described glass fibre layer of cloth 3 is three layers, adopts said structure, has further strengthened the bonding strength of cup and running channel.
Running channel described in the utility model is the foamed material running channel, and described cup is the foamed material cup, the identical foamed material that is of the two material, and lightweight, cost is low, is easy to install.
The above-mentioned lost foam casting sprue making step of the utility model is:
(1) selecting a pre-density is expandable polystyrene or the STMMMA bead of 16-25g/L, the cup that molds running channel and be attached thereto;
(2) then dry, be coated with fireproof coating and dry at cup and running channel inner surface;
(3) sprue of oven dry is taken out in cup and running channel junction and twined and tie up glass fabric, space is not arranged twining while tiing up glass fabric to tightly wrap, need twine altogether and tie up 3 layers of glass fabric and obtain lost foam casting sprue of the present utility model.
Adopt cast product cast(ing) surface that above-mentioned sprue prepares without knockout, pore, the casting flaws such as slag inclusion, after machining, the finished product rate is more than 97%.
Claims (4)
1. a lost foam casting sprue, comprise running channel (1), is arranged on the cup (2) of running channel (1) top, it is characterized in that: described running channel (1) is integrated setting with cup (2).
2. lost foam casting sprue according to claim 1 is characterized in that: described running channel (1) twines and has tied up glass fibre layer of cloth (3) with cup (2) junction.
3. lost foam casting sprue according to claim 2, it is characterized in that: described glass fibre layer of cloth (3) is three layers.
4. lost foam casting sprue according to claim 1, it is characterized in that: described running channel (1) is the foamed material running channel, and described cup (2) is the foamed material cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203823779U CN203304490U (en) | 2013-06-28 | 2013-06-28 | Lost foam casting sprue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203823779U CN203304490U (en) | 2013-06-28 | 2013-06-28 | Lost foam casting sprue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203304490U true CN203304490U (en) | 2013-11-27 |
Family
ID=49610725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203823779U Expired - Fee Related CN203304490U (en) | 2013-06-28 | 2013-06-28 | Lost foam casting sprue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203304490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344940A (en) * | 2015-12-07 | 2016-02-24 | 兴化市雅兰机械制造有限公司 | Motor casing expendable pattern casting process |
-
2013
- 2013-06-28 CN CN2013203823779U patent/CN203304490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344940A (en) * | 2015-12-07 | 2016-02-24 | 兴化市雅兰机械制造有限公司 | Motor casing expendable pattern casting process |
| CN105344940B (en) * | 2015-12-07 | 2017-12-05 | 兴化市雅兰机械制造有限公司 | Motor casing lost foam casting process |
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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: 20131127 Termination date: 20200628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |