CN105964923B - Be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section - Google Patents
Be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section Download PDFInfo
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- CN105964923B CN105964923B CN201610357905.3A CN201610357905A CN105964923B CN 105964923 B CN105964923 B CN 105964923B CN 201610357905 A CN201610357905 A CN 201610357905A CN 105964923 B CN105964923 B CN 105964923B
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- ingate
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- mouth portion
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
It is a kind of be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section,Including porcelain tube ontology,Round mouth portion,Flat oral area,The porcelain tube ontology is that transition is connected to the smooth surface between round mouth portion and flat oral area,The cross sectional shape in the round mouth portion is circle,The cross sectional shape of flat oral area is rectangle,The round mouth portion and flat oral area area of section having the same,The smooth surface of porcelain tube ontology is in different location also area of section having the same,The area of section of porcelain tube ontology and round mouth portion,The area of section of flat oral area is identical,The round mouth portion is used to overlap the end of ingate,Flat oral area is for connecting casting mold cavity,Round mouth portion and flat oral area and porcelain tube ontology area of section having the same in the present invention,Original equal diameter cylinder and bending cross-section L-type pipe are replaced with this ceramic tube without bending cross-section gradual change,Achieve the purpose that reduce Inner running channels with casting contact site thermal center to reduce neighbouring shrinkage defect.
Description
Technical field
The present invention relates to machine casting technical field more particularly to it is a kind of be connected between ingate and cavity without bending
The flat ingate ceramic tube of cross-section.
Background technology
A most important ring is casting process, especially nodular iron casting to casting in process of production, to avoid casting process
Middle generation turbulent flow, volume gas cause to generate oxidizing slag, and low temperature is generally used to pour the pouring technology of bottom injection soon in industry at present.
China Machine Press publishes within 2003《It casts handbook-casting technique and rolls up second edition》Chapter 3《Casting Technology Design》In point out
Casting temperature of lower is high in this technique casting mold, is unfavorable for feeding, easy tos produce shrinkage defect, especially Inner running channels and casting T
Type connection is easier to form thermal center, therefore it is required that the longitudinal section of Inner running channels is in " remote thick close thin " from interface.
In addition because technological design needs, the larger Inner cast gates of circular cross section diameter can not be placed in casting thin-walled position, because
The wall thickness of thin-section casting cavity is had been above for the diameter of ingate, so the ingate using circular cross-section can not produce thin-walled
Product, serious restrict contain thin-wall product technological design.
Application No. is in 201520240916.4 patent, disclosing a kind of ingate ceramic tube, including ceramic tube body,
It is characterized in that the ceramic tube body includes the pipe portion being wholely set and flat tube portion, the pipe portion and the flat tube
Portion's rounding off connection, the area of the endoporus in the flat tube portion are more than the area of the endoporus in the pipe portion, the circle
Pipe portion is used to overlap the end of ingate, and the flat tube portion is for connecting casting mold cavity.
The endoporus area in flat tube portion is designed as to the area of the endoporus more than pipe portion in the patent, is flowed in this way in liquid
When, during entering flat tube portion from pipe portion, since the area in flat tube portion becomes larger so that occur during liquid flowing disorderly
Stream, mutation cause liquid slag inclusion and then flow into cavity, and becoming larger due to the area in flat tube portion, from running gate system to type
The pressure in intracavitary portion is there are gap, and air can be involved in and then flow into cavity by liquid, so because in flat tube portion in the patent
The increase of hole area can cause the volume gas and slag inclusion of liquid, into after cavity, cause casting to form stomata, pinprick, slag inclusion and lack
It falls into.
Invention content
It is necessary to propose it is a kind of can make liquid stabilising flowing, be not mutated be connected between ingate and cavity without folding
The curved flat ingate ceramic tube of cross-section.
It is a kind of be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section, including porcelain tube ontology,
Be located at the round mouth portion at porcelain tube ontology both ends and flat oral area, the porcelain tube ontology be transition be connected to round mouth portion and flat oral area it
Between smooth surface, the cross sectional shape in the round mouth portion is circle, and the cross sectional shape of flat oral area is rectangle, the round mouth portion and flat
Oral area area of section having the same, the smooth surface of porcelain tube ontology is in different location also area of section having the same, porcelain tube
The area of section of ontology is identical as the area of section in round mouth portion, flat oral area, and the round mouth portion is used to overlap the end of ingate, flat
Oral area is for connecting casting mold cavity.
Round mouth portion and flat oral area and porcelain tube ontology area of section having the same in the present invention, with this without bending cross-section gradually
The ceramic tube of change replaces original equal diameter cylinder and bending cross-section L-type pipe, and reaching reduces Inner running channels and casting contact site
Position thermal center is to reduce the purpose of neighbouring shrinkage defect.
Also, since the area of section of the flat oral area of rectangular end is identical as the area of section in round mouth portion of round nose, foundation
Mathematical knowledge it is known that, the perimeter of circular configuration is minimum in the identical different shape structure of area, therefore in unit distance
The perimeter of rectangular end is more than the perimeter of round nose, i.e. the surface area of rectangular end is more than the surface area namely rectangular end of round nose
Heat dissipation area be more than round nose heat dissipation area, when equivalent molten metal with certain speed by round nose round mouth portion enter,
Be not in not only liquid mutation turbulent flow, moreover it is possible to effectively anti-during exiting into casting cavity by the flat oral area of rectangular end again
The only generation of thermal center, avoids the volume gas and slag inclusion of liquid, and then casting is avoided to form stomata, pinprick, dreg defect.
Description of the drawings
Fig. 1 is connected to making pottery without the flat ingate of bending cross-section between ingate and cavity for a kind of better embodiment
The structural schematic diagram of porcelain tube.
Fig. 2 is the structural schematic diagram of another angle of Fig. 1.
In figure：Porcelain tube ontology 10, round mouth portion 20, flat oral area 30.
Specific implementation mode
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, common for this field
For technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Referring to Fig. 1, Fig. 2, being cut without bending etc. between ingate and cavity is connected to an embodiment of the present invention provides a kind of
The flat ingate ceramic tube in face, including porcelain tube ontology 10, be located at 10 both ends of porcelain tube ontology round mouth portion 20 and flat oral area 30, porcelain
Tube body 10 is that transition is connected to the smooth surface between round mouth portion 20 and flat oral area 30, and the cross sectional shape in round mouth portion 20 is circle
Shape, the cross sectional shape of flat oral area 30 are rectangle, 30 area of section having the same of round mouth portion 20 and flat oral area, porcelain tube ontology 10
Smooth surface is in different location also area of section having the same, area of section and round mouth portion 20, the flat oral area of porcelain tube ontology 10
30 area of section is identical, and round mouth portion 20 is used to overlap the end of ingate, and flat oral area 30 is for connecting casting mold cavity.
Further, to make liquid metal filling after Inner gate locations not will produce thermal center and radiate as early as possible, with casting
The area of the rectangular end of the flat oral area 30 of contact is as big as possible, and the modular design of the rectangular end of flat oral area 30 is less than round mouth portion 20
Round nose modulus.
Further, to make the area of smooth surface minimum, scattering and disappearing for molten metal heat, round mouth are reduced with as small as possible
The modulus of the round nose in portion 20 is the half of the radius distance value of the circular cross-section of round nose.
The present invention at least has the advantages that：
1）It can be placed on the relatively thin position of casting section thickness, solve the problems, such as that conventional ingate can not be placed.
2）By using smoothly transitting for prismatic circular port and rectangular port, casting thermal center can be effectively prevent
It generates.
3）Ingate may be implemented in ingate and casting link position wall thickness is relatively thin, is convenient for the cleaning of postorder casting.
4）The smooth surface of ingate, it is turbulent caused by the mutation in ingate section before can preventing molten iron from entering cavity
Module or unit in device of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is wanted according to right of the present invention
Equivalent variations made by asking, still belong to the scope covered by the invention.
Claims (3)
1. it is a kind of be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section, it is characterised in that：Including
Porcelain tube ontology, the round mouth portion for being located at porcelain tube ontology both ends and flat oral area, the porcelain tube ontology are that transition is connected to round mouth portion
The cross sectional shape of smooth surface between flat oral area, the round mouth portion is circle, and the cross sectional shape of flat oral area is rectangle, described
Round mouth portion and flat oral area area of section having the same, the smooth surface of porcelain tube ontology is in different location section face having the same
Product, the area of section of porcelain tube ontology is identical as the area of section in round mouth portion, flat oral area, and the round mouth portion is for overlapping ingate
End, flat oral area is for connecting casting mold cavity.
2. it is as described in claim 1 be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section,
It is characterized in that：The modulus of the rectangular end of the flat oral area is less than the modulus of the round nose in round mouth portion.
3. it is as claimed in claim 2 be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section,
It is characterized in that：The modulus of the round nose in the round mouth portion is the half of the radius distance value of the circular cross-section of round nose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357905.3A CN105964923B (en) | 2016-05-26 | 2016-05-26 | Be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357905.3A CN105964923B (en) | 2016-05-26 | 2016-05-26 | Be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105964923A CN105964923A (en) | 2016-09-28 |
| CN105964923B true CN105964923B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610357905.3A Active CN105964923B (en) | 2016-05-26 | 2016-05-26 | Be connected between ingate and cavity without the flat ingate ceramic tube of bending cross-section |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355344A (en) * | 2019-08-28 | 2019-10-22 | 东北大学 | A kind of thin-walled pack alloy structural member running gate system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202411341U (en) * | 2011-12-15 | 2012-09-05 | 洛阳市兴荣工业有限公司 | Casting in-gate brick tube for complex thin-wall cast |
| CN102744370A (en) * | 2012-07-25 | 2012-10-24 | 湖南江滨机器（集团）有限责任公司 | Pouring system for permanent mold gravity casting aluminum piston |
| CN103600033B (en) * | 2013-09-22 | 2015-12-09 | 日月重工股份有限公司 | Cast structure |
| CN103978158B (en) * | 2014-04-17 | 2017-01-04 | 宁夏共享集团有限责任公司 | A kind of pottery casting system |
| CN204603216U (en) * | 2015-04-21 | 2015-09-02 | 宁波永祥铸造有限公司 | A kind of ingate earthenware |
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2016
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| CN105964923A (en) | 2016-09-28 |
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