CN209697978U - A kind of fan-shaped pressure cone riser of casting - Google Patents
A kind of fan-shaped pressure cone riser of casting Download PDFInfo
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- CN209697978U CN209697978U CN201822145225.2U CN201822145225U CN209697978U CN 209697978 U CN209697978 U CN 209697978U CN 201822145225 U CN201822145225 U CN 201822145225U CN 209697978 U CN209697978 U CN 209697978U
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- riser
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Abstract
The utility model discloses a kind of fan-shaped pressure cone riser of casting, pressure portion including the base portion being connect with casting and above base portion, it is fan-shaped pressure cone that the side in the pressure portion, which is equipped with horizontal cross-section, the type chamber for accommodating molten metal is formed inside base portion and pressure portion, molten metal flows into casting along base portion under the action of pressure cone.Since fan-shaped pressure cone is arranged in side, the horizontal cross-section in pressure portion is uniform, and top is larger, not only can effectively generate pressure, and is avoided that at the top of pressure portion in the prior art and binds.Solidification is slower at the top of riser at the top of the pressure portion of the utility model compared with the existing technology, and it is more preferable that pressure decline, feeding effect caused by top solidifies can be effectively prevented.
Description
Technical field
The utility model relates to novel risers used in casting, and are specifically related to a kind of riser of band sector pressure cone.
Background technique
The main function of riser is exactly feeding, and since the cooling forming process of casting can generate volume contraction, riser just exists
Molten iron is fed when casting formation, prevents the generation of the internal flaws such as shrinkage cavity and porosity.General riser can all have triangular prism shaped at top
Pressure cone, such as Fig. 1, pressure cone 5 increases the static pressure at the top of riser, and riser is not easy to bind, and increases riser molten iron utilization rate.
But general triangular prism shaped pressure cone can reduce riser effective height, reduce riser feeding distance, not can solve casting and do not allow
Easily by the shrinkage cavity defect at feeding position.
Utility model content
The technical issues of the utility model solves is, provides a kind of casting fan-shaped pressure cone riser, the riser feeding
Effect is good, can prevent casting from generating the internal flaws such as shrinkage cavity and porosity.
To achieve the above object, the utility model provides the following technical solutions:
A kind of fan-shaped pressure cone riser of casting, the pressure portion including the base portion being connect with casting and above base portion,
It is fan-shaped pressure cone that the side in the pressure portion, which is equipped with horizontal cross-section, forms the type for accommodating molten metal inside base portion and pressure portion
Chamber, molten metal flow into casting along base portion under the action of pressure cone.
Further, the pressure cone is the sector notch cut along cylindrical pressure portion side.
Further, sector notch horizontal cross-section angle is 75 °.
Further, the pressure cone includes side and bottom surface, and the bottom surface and the angle of pressure portion center line are 60-
80°。
A kind of casting method, comprising the following steps:
A. casting mould is designed, mold is put into moulding machine, obtains the mold sand mold of casting, the casting includes casting
Ontology and the fan-shaped pressure cone riser of above-mentioned casting, the casting are connect with fan-shaped pressure cone riser bottom with casting；
B. the raw material of industry is placed in electric furnace and is heated to smelting temperature, when temperature reaches 1500-1600 DEG C in electric furnace
When, nodulizer 1.0-1.2wt% and inovulant 0.2-0.4wt% is added, so that raw material, which fills, is differentiated to form molten iron；
C. the pouring molten iron into mold sand mold, the tapping temperature of molten iron are 1500-1520 DEG C, pour the time and are set as 10s,
After casting complete, casting is taken out when it is cooled to 200-300 DEG C.
Using above technical scheme, the application is had following technical effect that
1. the fan-shaped pressure cone of the utility model is arranged in side, therefore the horizontal cross-section in pressure portion is uniform, and top compared with
Greatly, pressure not only can be effectively generated, and is avoided that at the top of pressure portion in the prior art and binds.The pressure portion of the utility model
Solidification is slower at the top of the riser of top compared with the existing technology, and pressure decline, feeding caused by top solidifies can be effectively prevented
Effect is more preferable.
2. pressure portion is integrally cylindrical, which can accommodate more molten metal in the identical situation of surface area,
Therefore liquid cooling is slower in pressure portion.
3. the angle of bottom surface and pressure portion center line is 60-80 °, so that the cone angle of pressure cone is at an acute angle, provide more
Big pressure, the molten metal flowing being more favorable in pressure portion.
Detailed description of the invention
Fig. 1 is the system structure diagram of this prior art riser.
Fig. 2 is the top view of the utility model embodiment one.
Fig. 3 is that the sectional structure of the utility model embodiment one is intended to.
Fig. 4 is the perspective view of the utility model embodiment one.
Base portion 1, pressure portion 2, pressure cone 3, side 31, bottom surface 32, casting 4.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 2-4, a kind of fan-shaped pressure cone riser of casting including the base portion 1 connecting with casting and is located at
Pressure portion 2 above base portion, it is fan-shaped pressure cone 3 that the side in the pressure portion, which is equipped with horizontal cross-section, since pressure cone is arranged
In side, pressure cone 3 is the sector notch cut along 2 side of cylindrical pressure portion, and as shown in Figure 2,3, pressure portion is integrally in
Cylinder, the shape can accommodate more molten metal in the identical situation of surface area, thus in pressure portion liquid it is cooling compared with
Slowly.Height is that the pressure portion horizontal cross-section of the part h is substantially uniform, and top is larger, not only can effectively generate pressure, Er Qieneng
It avoids binding at the top of pressure portion in the prior art.And in the prior art although the pressure cone of Fig. 1 can produce pressure, but due to
The h partial cross section of upper part is small, and surface area is big, therefore is easy to bind, due to the riser at the top of pressure portion compared with the existing technology
Top solidification is slower, and it is more preferable that pressure decline, feeding effect caused by top solidifies can be effectively prevented.Meanwhile the heat of molten metal
It measures from the lateral sides 31 of pressure cone and bottom surface 32 and heat compensation is carried out to pressure wimble fraction, prevent the gold close to pressure wimble fraction
Belong to liquid cooling but.
In the present embodiment, sector notch horizontal cross-section included angle A is 75 °, and pressure cone 3 includes side 31 and bottom surface 32, institute
The included angle B for stating bottom surface 31 and pressure portion center line is 60-80 °.So that the cone angle of pressure cone is at an acute angle, bigger pressure is provided
Power, the molten metal flowing being more favorable in pressure portion.
The type chamber 3 for accommodating molten metal is formed inside base portion 1 and pressure portion 2, molten metal is under the action of pressure cone along base
Portion flows into casting 4 and is mended so that molten metal can effectively flow into casting 4 when casting 4 is shunk in cooling procedure
Contracting.
A kind of casting method, comprising the following steps:
A. casting mould is designed, mold is put into moulding machine, obtains the mold sand mold of casting, the casting includes casting
Ontology and the fan-shaped pressure cone riser of above-mentioned casting, the casting are connect with fan-shaped pressure cone riser bottom with casting；
B. the raw material of industry is placed in electric furnace and is heated to smelting temperature, when temperature reaches 1500-1600 DEG C in electric furnace
When, nodulizer 1.0-1.2wt% and inovulant 0.2-0.4wt% is added, so that raw material, which fills, is differentiated to form molten iron；
C. the pouring molten iron into mold sand mold, the tapping temperature of molten iron are 1500-1520 DEG C, pour the time and are set as 10s,
After casting complete, casting is taken out when it is cooled to 200-300 DEG C.
By above-mentioned casting method, cast article 10000,100% without shrinkage cavity.The technical solution of the utility model,
The casting more demanding especially suitable for pressure containing part etc..
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of fan-shaped pressure cone riser of casting, which is characterized in that including the base portion being connect with casting and be located above base portion
Pressure portion, it is fan-shaped pressure cone that the side in the pressure portion, which is equipped with horizontal cross-section, is formed and is accommodated inside base portion and pressure portion
The type chamber of molten metal, molten metal flow into casting along base portion under the action of pressure cone.
2. the fan-shaped pressure cone riser of casting according to claim 1, which is characterized in that the pressure cone is along cylinder
The sector notch that shape pressure portion side is cut.
3. the fan-shaped pressure cone riser of casting according to claim 2, which is characterized in that the sector notch horizontal cross-section
Angle is 75 °.
4. the fan-shaped pressure cone riser of casting according to claim 2, which is characterized in that the pressure cone include side and
The angle of bottom surface, the bottom surface and pressure portion center line is 60-80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822145225.2U CN209697978U (en) | 2018-12-20 | 2018-12-20 | A kind of fan-shaped pressure cone riser of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822145225.2U CN209697978U (en) | 2018-12-20 | 2018-12-20 | A kind of fan-shaped pressure cone riser of casting |
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| Publication Number | Publication Date |
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| CN209697978U true CN209697978U (en) | 2019-11-29 |
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| CN201822145225.2U Active CN209697978U (en) | 2018-12-20 | 2018-12-20 | A kind of fan-shaped pressure cone riser of casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465395A (en) * | 2018-12-20 | 2019-03-15 | 苏州石川制铁有限公司 | A kind of casting fan-shaped pressure cone riser and its casting method |
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2018
- 2018-12-20 CN CN201822145225.2U patent/CN209697978U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465395A (en) * | 2018-12-20 | 2019-03-15 | 苏州石川制铁有限公司 | A kind of casting fan-shaped pressure cone riser and its casting method |
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