CN109226687A - Annular cast is with type running gate system - Google Patents
Annular cast is with type running gate system Download PDFInfo
- Publication number
- CN109226687A CN109226687A CN201811207129.4A CN201811207129A CN109226687A CN 109226687 A CN109226687 A CN 109226687A CN 201811207129 A CN201811207129 A CN 201811207129A CN 109226687 A CN109226687 A CN 109226687A
- Authority
- CN
- China
- Prior art keywords
- gate system
- running gate
- annular
- ingate
- annular cast
- Prior art date
- 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.)
- Pending
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Classifications
-
- 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
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
Abstract
A kind of annular cast is with type running gate system, suitable for Technology of EPC field, it is long for solving the annular cast duration of pouring, easily steps on case and be also easy to produce the defect of carbon slag, the running gate system includes sprue and ingate, the sprue and ingate of the running gate system are all set in the inner cavity of the annular cast evaporative pattern apperance, and cross gate is equally spaced in annular cast short transverse or the cross gate is arranged in the upper surface of the evaporative pattern apperance of annular cast, at lower end surface and the big position of thickness therebetween, it is most short to reach molten metal influent stream path, and the length of ingate differs smaller in the same height, to reach filling time substantially simultaneously, so as to avoid turbulent flow, the defects of cold shut.The built-in running gate system simultaneously, while the effect of support is also played, the intensity of evaporative pattern apperance is improved from another angle, reduces the risk for stepping on case.
Description
Technical field
The present invention relates to casting technology fields, the in particular to running gate system in lost foam casting.
Background technique
The feature of lost-foam casting method maximum is to may be cast as complex-shaped, thin wall product, while lost foam casting has
There are green, near-net-shape, high yield rate.And at the same time, evaporative pattern is also because its intensity is smaller than sand mold and easily-deformable etc.
Deficiency, in foundry production, often generation molding is bad, steps on the defects of case, cold shut, upper surface carbon slag.
Summary of the invention
In view of the defect being easy in the above lost foam casting in cast(ing) surface generation carbon slag, it is necessary to propose that one kind is used for
Annular cast with type running gate system, it is described to be realized with type running gate system by the distribution of setting multilayer cross gate and ingate
Quickly fill type, so as to avoid being vaporized as evaporative pattern caused by step on the generation of case and casting upper surface carbon slag defect.
With with type running gate system, the running gate system includes sprue and ingate, the casting system for a kind of annular cast
The sprue and ingate of system are all set in the inner cavity of the annular cast evaporative pattern apperance, and cross gate is in annular cast height
Be equally spaced on degree direction or by the cross gate be arranged in the upper surface of the evaporative pattern apperance of annular cast, lower end surface and its
Between the big position of thickness at, thus reach that molten metal influent stream path is most short and in same height ingate length difference it is smaller,
To reaching filling time substantially simultaneously, the defects of so as to avoid turbulent flow, cold shut.The built-in running gate system simultaneously, together
When also play the effect of support, improve the intensity of evaporative pattern apperance from another angle, reduce the risk for stepping on case.
It is further limited as of the invention, the sprue can be level-one, two according to the structure setting of annular cast
Grade or three-level, and the sprue can be set to one, can also be divided into two.
It is further limited as of the invention, in the same height, the ingate is evenly distributed on the annular casting
In the evaporative pattern apperance of part namely the influent stream point of the ingate is uniformly distributed in the annular evaporative pattern apperance.
The invention has the benefit that the running gate system being placed in annular cast evaporative pattern apperance, so that casting road
Diameter most shortization, casting more evenly, avoid turbulent flow and cold shut, by the way that multistage ingate is arranged, caused by avoiding one direction influent stream
Casting upper surface carbon slag defect；And the built-in running gate system can also play the role of supporting evaporative pattern apperance, to keep away
Case defect is stepped on when having exempted from evaporative pattern vaporization.
Detailed description of the invention
Fig. 1 is a kind of annular cast three dimensional structure diagram；
Fig. 2 is that annular cast evaporative pattern apperance and running gate system cooperate schematic diagram；
Fig. 3 is that annular cast evaporative pattern apperance and running gate system cooperate schematic cross-sectional view；
In figure, 1- evaporative pattern apperance；2- ingate；3- sprue.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, will be described in detail according to figure embodiment, it is aobvious and easy
Insight, drawings in the following description are some embodiments of the invention, for those of ordinary skill in the art, is not paying
Under the premise of creative work, it is also possible to obtain other drawings based on these drawings.
The present embodiment is based on annular cast as shown in Figure 1, and the overall size of the annular cast is 785mm*
490mm*450mm, the wall thickness at the thin-walled of the annular cast are 5mm~7mm, and the sealing requirements of inner cavity are that inner cavity wants can
The air pressure of 0.01MPa is born without revealing；The disappearance mold materials used is bead granular diameter for the STMMA of 0.2mm~0.3mm,
Become the white mould that bead granular diameter is 1mm~3mm after foaming.
Technical solution according to the invention is illustrated in figure 2 in the evaporative pattern apperance inner cavity of the homotype of annular cast and is arranged
It is described with type running gate system, described with type running gate system includes level-one sprue, second level sprue, three-level sprue and at different levels interior
Running channel, under wherein level-one ingate is arranged on the lower end surface of evaporative pattern apperance, second level ingate is arranged in evaporative pattern apperance
Evaporative pattern apperance is arranged in (heat energy-saving position that casting is arranged in second level ingate in other words), three-level ingate at the heavy wall in portion
On upper surface；Ingates at different levels are set there are four branch, and four branches are uniformly distributed in the evaporative pattern apperance, so that institute
State ingate and evaporative pattern apperance influent stream point is uniformly distributed namely arc distance base that each influent stream point is in annular evaporative pattern apperance
This is equal, and needs to guarantee that the distance of each annular evaporative pattern apperance of ingate branch distance is as equal as possible, thus guarantee into
The stream time is identical, avoids the intracavitary turbulent flow of type caused by cold shut and uneven charging, causes the drift everywhere of carbon slag.
Based on this, annular cast as shown in Figure 1 is with type running gate system, because the inner cavity of the annular cast is divided into
Upper layer and lower layer, therefore set sprue to the three-level running gate system of three-stage, wherein second level sprue is divided into two, with cooperation
The structure of annular cast itself, to not have to mostly reserved structure.Four branches specifically are set in the upper surface of evaporative pattern apperance
Three-level ingate, at the big position (namely heat energy-saving position) of thickness of middle and lower part the second level ingate of four branches is set, in lower end
The level-one ingate of four branches is arranged in face.The internal diameter of first order sprue and third level sprue is 70mm, the second level
Sprue is decomposed into two to exist side by side, and the internal diameter of each second level sprue is 30mm, and the sprue and the ingate with
Annular cast is at least there are the mold thickness of 10mm between annular evaporative pattern apperance.After designing in this manner, each ingate
Influent stream rate can achieve 2.5kg/s, when ingate selects the square structure of 5mm*20mm, it can be achieved that by the ring in 85s
Shaped cast part is poured, to ensure that Quick pouring, is reduced and is stepped on case risk, while avoiding the collection of cast(ing) surface carbon slag
It is poly-.
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 wants according to right of the present invention
Made equivalent variations is sought, is still belonged to the scope covered by the invention.
Claims (7)
1. a kind of annular cast is with type running gate system, which is characterized in that described to be set to the annular casting with type running gate system
Part in annular evaporative pattern apperance inner cavity, and it is described be equipped with sprue and ingate with type running gate system, the ingate is equipped with
At least 2 grades.
2. annular cast as described in claim 1 is with type running gate system, which is characterized in that the ingate is equipped with several points
Branch, the branch are evenly arranged in the annular evaporative pattern apperance.
3. annular cast as claimed in claim 1 or 2 is with type running gate system, which is characterized in that described with type running gate system
It is set as staged, the position of ladder can be divided according to the structure of the annular evaporative pattern apperance.
4. annular cast as claimed in claim 3 is with type running gate system, which is characterized in that the ingate is arranged in annular
On the upper surface and lower end surface of evaporative pattern apperance.
5. annular cast as claimed in claim 4 is with type running gate system, which is characterized in that at the big position of thickness of annular cast
On be additionally provided with level-one ingate.
6. annular cast as described in claim 1 is with type running gate system, which is characterized in that described with type running gate system and institute
State between annular evaporative pattern apperance that there are at least mold thickness of 10mm.
7. annular cast as described in claim 1 is with type running gate system, which is characterized in that the ingate of the ingate
Influent stream rate is 2.5kg/s, and the duration of pouring is less than 85s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207129.4A CN109226687A (en) | 2018-10-20 | 2018-10-20 | Annular cast is with type running gate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207129.4A CN109226687A (en) | 2018-10-20 | 2018-10-20 | Annular cast is with type running gate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109226687A true CN109226687A (en) | 2019-01-18 |
Family
ID=65053087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811207129.4A Pending CN109226687A (en) | 2018-10-20 | 2018-10-20 | Annular cast is with type running gate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109226687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453559A (en) * | 2022-01-27 | 2022-05-10 | 大连华锐重工铸业有限公司 | Time-delay pouring method for large casting |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900064A (en) * | 1972-12-04 | 1975-08-19 | Hitchiner Manufacturing Co | Metal casting |
| JPH01154846A (en) * | 1987-09-15 | 1989-06-16 | Metal Casting Technol Inc | Method of casting metal in air gap section of sand mold easy to be fluidized and firmly cured |
| CN201711496U (en) * | 2010-05-14 | 2011-01-19 | 淮南舜立机械有限责任公司 | Casting device |
| FR2972656A1 (en) * | 2011-03-17 | 2012-09-21 | Peugeot Citroen Automobiles Sa | Producing metal part e.g. cylinder head of heat engine of automobile vehicle from lost-wax model disposed inside container, by delivering molten metal to interior of container, and contacting phase changing element with free surface |
| FR2961725B1 (en) * | 2010-06-29 | 2013-02-08 | Peugeot Citroen Automobiles Sa | LOST MODEL MOLDING PROCESS |
| CN103990762A (en) * | 2014-05-23 | 2014-08-20 | 马鞍山市晨光高耐磨科技发展有限公司 | Casting device specially used for annular long casting part |
| CN105290333A (en) * | 2015-12-02 | 2016-02-03 | 株洲中航动力精密铸造有限公司 | Bottom pouring type pouring system |
| CN106180563A (en) * | 2016-06-17 | 2016-12-07 | 柳州市志宝机械有限公司 | The casting method of polishing exempted from by a kind of smallclothes evaporative pattern foundry goods |
| CN206276871U (en) * | 2016-12-15 | 2017-06-27 | 南京诺瑞特铸造有限公司 | A kind of evaporative pattern of electric machine casing |
-
2018
- 2018-10-20 CN CN201811207129.4A patent/CN109226687A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900064A (en) * | 1972-12-04 | 1975-08-19 | Hitchiner Manufacturing Co | Metal casting |
| JPH01154846A (en) * | 1987-09-15 | 1989-06-16 | Metal Casting Technol Inc | Method of casting metal in air gap section of sand mold easy to be fluidized and firmly cured |
| CN201711496U (en) * | 2010-05-14 | 2011-01-19 | 淮南舜立机械有限责任公司 | Casting device |
| FR2961725B1 (en) * | 2010-06-29 | 2013-02-08 | Peugeot Citroen Automobiles Sa | LOST MODEL MOLDING PROCESS |
| FR2972656A1 (en) * | 2011-03-17 | 2012-09-21 | Peugeot Citroen Automobiles Sa | Producing metal part e.g. cylinder head of heat engine of automobile vehicle from lost-wax model disposed inside container, by delivering molten metal to interior of container, and contacting phase changing element with free surface |
| CN103990762A (en) * | 2014-05-23 | 2014-08-20 | 马鞍山市晨光高耐磨科技发展有限公司 | Casting device specially used for annular long casting part |
| CN105290333A (en) * | 2015-12-02 | 2016-02-03 | 株洲中航动力精密铸造有限公司 | Bottom pouring type pouring system |
| CN106180563A (en) * | 2016-06-17 | 2016-12-07 | 柳州市志宝机械有限公司 | The casting method of polishing exempted from by a kind of smallclothes evaporative pattern foundry goods |
| CN206276871U (en) * | 2016-12-15 | 2017-06-27 | 南京诺瑞特铸造有限公司 | A kind of evaporative pattern of electric machine casing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453559A (en) * | 2022-01-27 | 2022-05-10 | 大连华锐重工铸业有限公司 | Time-delay pouring method for large casting |
| CN114453559B (en) * | 2022-01-27 | 2023-11-17 | 大连华锐重工铸业有限公司 | Time-delay pouring method for large castings |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |