CN208195577U - A kind of MK7 core disk casting oval type fever blind riser set - Google Patents
A kind of MK7 core disk casting oval type fever blind riser set Download PDFInfo
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- CN208195577U CN208195577U CN201820782578.0U CN201820782578U CN208195577U CN 208195577 U CN208195577 U CN 208195577U CN 201820782578 U CN201820782578 U CN 201820782578U CN 208195577 U CN208195577 U CN 208195577U
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- riser
- top cover
- core disk
- casting
- side wall
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Abstract
The utility model discloses a kind of MK7 core disk casting oval type fever blind riser sets, that includes side walls and top cover, the side wall and top cover are structure as a whole whole in oval type, venthole is provided on the top cover, and venthole is communicated with type chamber, each angle of type top of chamber is arc, and the venthole is two, two ventholes are symmetricly set on top cover, and heating layer is additionally provided on the top cover inner wall, is provided with hollow region in the side wall；The riser buss integrally a length of 240mm, wide 80mm, high 110mm.It is smaller to efficiently solve MK7 core disk casting surface area, the problem of large scale riser can not be disposed.Mouth-shaped is emitted in oval type, is designed with core disk casting upper surface shape, is set at the top of riser buss there are two venthole, gas is effectively discharged to fill the type stage in casting, it is ensured that feeding effect.
Description
Technical field
The utility model relates to " oval, the special-shaped exothermic risers " of a kind of casting field, are mainly used for railway freight-car MK7
Core disk casting；Dead head structure is designed with casting local shape, is in oval shape；With high feeding performance and lesser body
Product.
Background technique
Riser, which refers to, is attached to the supplement part of above casting or side to avoid casting from defect occur.Function is in casting mold
In, the type chamber of riser be store liquid metal cavity, casting formation when feed metal, prevent shrinkage cavity and porosity, exhaust and
Collect the effect of slag, and the main function of riser is feeding.The different riser of the design function of riser, form, size and opens up
Position is all different.
Exothermic riser is one kind that current casting field improves casting yield rate, reduces heat energy-saving position shrinkage cavity, rarefaction defect
Important means.It is corresponding outer that the design of riser would generally wait for that the requirements such as the shape, size, material at feeding position are carried out according to casting
Sight and performance design.Final expectation uses the riser of minimum dimension, solves the problems, such as the feeding of casting.
Conventional exothermic riser sleeve specification shape has open riser, blind riser, straight barrel type riser etc. in the market, when casting waits for
When the shape at feeding position is more special, it is necessary to carry out special design according to actual needs.
Inventor has found that railway freight-car MK7 core disk casting surface area is smaller in actual use, can not dispose big ruler
The problem of very little riser, while that goes back takes into account effective discharge gas, it is ensured that feeding effect has been unable to meet existing riser.
Utility model content
The purpose of the utility model is to overcome it is above-mentioned there are deficiency, a kind of MK7 core disk casting oval type hair is provided
Hot blind riser set, it is smaller to solve MK7 core disk casting surface area, the problem of large scale riser can not be disposed.Emitting mouth-shaped is in
Oval type, is designed with core disk casting upper surface shape, is set at the top of riser buss there are two venthole, is had to fill the type stage in casting
The discharge gas of effect, it is ensured that feeding effect.
To achieve the goals above, technical solution used by the utility model is as follows:
The utility model provides a kind of MK7 core disk casting oval type fever blind riser set comprising side wall and top
It is in oval type that lid, the side wall and top cover, which are structure as a whole whole, and venthole, and venthole and type chamber are provided on the top cover
It communicates, each angle of type top of chamber is arc, and the venthole is two, and two ventholes are symmetricly set on top cover, institute
It states and is additionally provided with heating layer on top cover inner wall, be provided with hollow region in the side wall；The whole a length of 240mm of the riser buss,
Wide 80mm, high 110mm.
According to a kind of this practical new MK7 core disk casting oval type fever blind riser set, further technology
Scheme is: the heating layer on top cover inner wall is made of exothermic mixture.
According to a kind of this practical new MK7 core disk casting oval type fever blind riser set, further technology
Scheme is: the hollow region with a thickness of side wall one third to half.
According to a kind of this practical new MK7 core disk casting oval type fever blind riser set, further technology
Scheme is: side wall hollow region inboard portion is adiabator layer.
According to a kind of this practical new MK7 core disk casting oval type fever blind riser set, further technology
Scheme is: the side wall tilts outward.
According to a kind of this practical new MK7 core disk casting oval type fever blind riser set, further technology
Scheme is: the diameter of venthole is consistent with sidewall thickness.
The utility model has the advantage that compared with prior art
1, the mouth-shaped that emits of the utility model is in oval type, is designed with core disk casting upper surface shape, riser length direction
For 240mm, width direction 80mm, 110mm is highly reached；Venthole there are two being set at the top of riser buss, to fill the type stage in casting
Effective discharge gas, it is ensured that feeding effect.
2, the utility model riser emits mainly by way of enlarging section length-width ratio meeting the placement of MK7 core disk cast(ing) surface
Under the premise of mouth position is relatively narrow, sufficient riser volume and modulus are reached.Finally ensure that the core disk casting upper surface is relatively narrow
The special placement demand at position, while ensuring the internal soundness of casting.
3, the riser has reached enough feeder modulus and internal capacity with the width of very little, so that it is abundant to give casting
Feeding effect.So that the surface quality and internal shrinkage of draw bar casting, it is loose the defects of obtained essence solution.Simultaneously
Riser sectional area is small, easy to polish after cutting, effectively reduces cleaning task afterwards amount.
4, hollow region is arranged on riser buss side wall in the utility model, due to the heat transfer coefficient (0.023W/m of air
K) more much smaller than making the thermal insulation material of riser buss itself, therefore the heat inside riser buss passes to outer wall surface, in
Between air section when transmission speed can obviously be obstructed, the temperature gradient of inside and outside wall has apparent increase, using air it is good
Cavity structure will be made among riser wall in heat-proof quality, can make riser buss it is more heat-insulated, heat preservation.Under square one, inside riser
When the temperature of medium (such as molten steel) is equal, the temperature of hollow riser outer wall can be lower than 30 DEG C or so of common riser buss outside wall temperature,
Especially become apparent from hot stage, that is, riser feeding stage effectiveness.
5, the utility model is set as insulating layer in riser buss inner body wall, and heating layer is arranged inside top cover, so as to
It to reduce top metal crust, while ensuring the solidification duration of the molten metal in riser, improves feeding effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model MK7 core disk casting oval type fever blind riser set.
In figure: type chamber 1, side wall 2, top cover 3, venthole 4, hollow region 5, heating layer 6.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.In the description of the present invention, the meaning of " plurality " is two or
Two or more, unless otherwise specifically defined.It for the ordinary skill in the art, can be as the case may be
Understand the concrete meaning of above-mentioned term in the present invention.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.
It refers to shown in attached drawing 1, present embodiments provides a kind of MK7 core disk casting oval type fever blind riser set,
It include side wall 2 and top cover 3, the side wall 2 and top cover 3 are structure as a whole whole in oval type.
It wherein is provided with venthole 4 on the top cover 3, and venthole 4 is communicated with type chamber 1.The present embodiment is by the type chamber 1
Each angle in top be arc, top can be reduced in this way because be right angle bring gas.The present embodiment will also be described logical simultaneously
Stomata 4 is set as two, and two ventholes 4 are symmetricly set on top cover 3, in this way can be effective to fill the type stage in casting
Improve discharge gas efficiency, it is ensured that feeding effect.
It wherein is additionally provided with heating layer 6 on 3 inner wall of top cover, which is mainly made of exothermic mixture, in this way may be used
The case where being crusted with the intracavitary top cover molten metal of reduction type promotes feeding effect to put on molten metal solidification duration.
The wherein riser buss integrally a length of 240mm, wide 80mm, high 110mm passes through the riser of design aspect ratio in this way
Internal diameter, while ensuring that the modulus of riser is met the requirements using efficient exothermic material.The riser passes through the above special designing, modulus
Up to 4.5cm, riser volume reaches 2000cm3, effectively ensure feeding requirement of the MK7 core disk casting at this.Riser sleeve wall thickness control
System is in 12mm, while side wall tilts outward may insure feeding effect.
Hollow region 5 is set in the riser side wall 2 in the present embodiment, and the thickness of the hollow region 5 is set as side
The one third of 2 thickness of wall both may insure the intensity of riser in this way while having met the needs of heat preservation to half.Simultaneously also
Hollow region can be divided into multiple portions, be evenly provided in the wall of side wall 2 respectively.Air can thus be made full use of
Thermal conductivity coefficient lower than riser buss ontology thermal conductivity coefficient and realize the purpose of heat preservation.Secondly the present embodiment is also by the hollow area
It is specially exothermic mixture that riser buss ontology on the inside of domain, which is set as adiabator layer, realizes Double insulating, further extends molten metal
Solidification duration, promoted feeding efficiency.
Venthole 4 is set as all being 12mm with the consistency of thickness of side wall 2 in the present embodiment.
The present embodiment mainly by way of enlarging section length-width ratio, places riser position meeting MK7 core disk cast(ing) surface
Set it is relatively narrow under the premise of, reached sufficient riser volume and modulus.Finally ensure the core disk casting upper surface narrower region
Special placement demand, while ensuring the internal soundness of casting.
The riser has reached enough feeder modulus and internal capacity with the width of very little, so that it is sufficient to give casting
Feeding effect.So that the surface quality and internal shrinkage of draw bar casting, it is loose the defects of obtained essence solution.It emits simultaneously
Mouth sectional area is small, easy to polish after cutting, effectively reduces cleaning task afterwards amount.
Modulus described herein: the parameter of characterization riser coagulating property, specific value are equal to the volume of riser divided by riser
Surface area；Numerical value is bigger, riser setting time is longer.
Yield rate: in casting process, final finished weight is divided by (casting moulding system, runner system+casting finished products weight
Amount)；Molten metal waste in the higher casting process of numerical value is fewer, and economic benefit is also higher.
Thermal center: during casting cooled and solidified, temperature declines slower, final solidified some structure divisions；It generally occurs within
In structure positions such as thick big, turning, holes.
Filling time: it when characterization casting pouring, fills type from starting to be poured into molten iron and finishes required total time.Ordinary circumstance
Under, the duration of pouring is shorter, running gate system thermal loss it is fewer, be more conducive to the feeding for filling type and riser of thin-section casting.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
- The blind riser set 1. a kind of MK7 core disk casting oval type generates heat comprising side wall and top cover, the side wall and top cover are Integral structure is integrally in oval type, venthole is provided on the top cover, and venthole is communicated with type chamber, it is characterised in that: institute Stating each angle of type top of chamber is arc, and the venthole is two, and two ventholes are symmetricly set on top cover, in the top cover It is additionally provided with heating layer on wall, is provided with hollow region in the side wall；The riser buss integrally a length of 240mm, wide 80mm are high 110mm。
- The blind riser set 2. MK7 core disk casting according to claim 1 oval type generates heat, it is characterised in that: top cover inner wall On heating layer be made of exothermic mixture.
- The blind riser set 3. MK7 core disk casting according to claim 1 oval type generates heat, it is characterised in that: described hollow Area thickness is the one third of side wall to half.
- The blind riser set 4. MK7 core disk casting according to claim 1 oval type generates heat, it is characterised in that: the side wall Hollow region inboard portion is adiabator layer.
- The blind riser set 5. MK7 core disk casting according to claim 1 oval type generates heat, it is characterised in that: the side wall It tilts outward.
- The blind riser set 6. MK7 core disk casting according to claim 1 oval type generates heat, it is characterised in that: the ventilation The diameter in hole is consistent with sidewall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782578.0U CN208195577U (en) | 2018-05-24 | 2018-05-24 | A kind of MK7 core disk casting oval type fever blind riser set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782578.0U CN208195577U (en) | 2018-05-24 | 2018-05-24 | A kind of MK7 core disk casting oval type fever blind riser set |
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| CN208195577U true CN208195577U (en) | 2018-12-07 |
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| CN201820782578.0U Active CN208195577U (en) | 2018-05-24 | 2018-05-24 | A kind of MK7 core disk casting oval type fever blind riser set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346220A (en) * | 2021-12-17 | 2022-04-15 | 郑州煤机格林材料科技有限公司 | Riser exothermic agent and method for improving casting yield |
-
2018
- 2018-05-24 CN CN201820782578.0U patent/CN208195577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346220A (en) * | 2021-12-17 | 2022-04-15 | 郑州煤机格林材料科技有限公司 | Riser exothermic agent and method for improving casting yield |
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