CN104889365B - A kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting - Google Patents
A kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting Download PDFInfo
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- CN104889365B CN104889365B CN201510309761.XA CN201510309761A CN104889365B CN 104889365 B CN104889365 B CN 104889365B CN 201510309761 A CN201510309761 A CN 201510309761A CN 104889365 B CN104889365 B CN 104889365B
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Abstract
The present invention relates to a kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting, exhaust apparatus includes exhaust apparatus main body, the cavity for aerofluxuss is provided with exhaust apparatus main body, high temperature resistant that ceramic fibre makes is provided with cavity every liquid air-permeable layer, high temperature resistant is provided with fixed mount above liquid air-permeable layer, high temperature resistant is provided with steam vent below liquid air-permeable layer, steam vent includes bellmouth and the bellmouth boss for connecting, the little head end of bellmouth is connected with bellmouth boss, bellmouth boss is in straight-tube shape, bellmouth boss is positioned close to high temperature resistant every the side of liquid air-permeable layer, there is easy mold release, good exhaust effect and it is easy to the advantage that visual inspection cast product exhaust gas conditions and founding materialses gas forming amount change, also have simultaneously economic and practical, simple to operate, environment friendly and pollution-free advantage；Method for exhausting has the advantages that process is simple, efficiency high, effectively prevent the phenomenon that pore or scarce material occurs in workpiece, and conforming product rate reaches more than 99.9%.
Description
Technical field
The present invention relates to a kind of exhaust apparatus and method for exhausting, it is adaptable to foundry engieering, it is particularly suited for metal mold accurate
Low pressure casting, specifically, is related to a kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting, belongs to casting technology field.
Background technology
Metal-mold low-pressure casting technology is widely used in China, is especially used in cast aluminium industry in a large number.
Aerofluxuss in casting process medium casting intracavity are one of key links, and gas extraction system is bad, intracavity can be made to feel suffocated, sternly
Counter-pressure can be produced also during weight, cause metal liquid be completely filled with die cavity, cause casting defect or scrap.
There are multiple exhaust modes in industry, be broadly divided into：Plough groove type, clearance type and mesh-type.But aforesaid way easily block up,
Difficult cleaning, frequently replacing are their general character, cause efficiency to reduce, and cost is raised, aerofluxuss are unstable, the cleaning of workman high temperature is made
The problems such as industry, fixed hardly possible.
Chinese patent such as in Application No. 200920123549.4 discloses a kind of aluminum alloy metal-type low-pressure casting and uses
Venting plug, by venting plug bottom using copper screen cloth is provided with, intercepts liquid aluminium and gets out from venting plug.But the copper screen cloth is difficult solid
Fixed, as during casting, liquid aluminium can be embedded in, after the completion of casting every time, copper screen cloth can all have been stayed on foundry goods and cannot have been removed again
Use, all obtain, before casting every time, the copper screen cloth for more renewing, not only loaded down with trivial details, also result in waste.
The Chinese patent of Application No. 201310220519.6 discloses a kind of metal-mold low-pressure casting mould, the bottom of comprising
Plate, left and right mould, core, Os Draconis, bolt and upper mould, are provided with sprue gate in the middle of base plate, be recessed on the outside of upper surface, and left and right mould is arranged on
In depression and be half slide structure, and junction is provided with steam vent, and upper mould is arranged on the upper end of left and right mould, and Os Draconis are arranged on left and right
It is bolted on the inside of mould and with upper mould, on bolt, is provided with vertical through hole, core is arranged on Os Draconis, and uniform on Os Draconis
Pore is provided with, after the workpiece cooling shaping in die cavity, left and right mould opened by both sides opening and closing left and right cylinder, then lifts upper mould, from
Under at upper mould shake workpiece, then the core in workpiece is smashed to pieces cleaning, can obtain complete workpiece, inefficiency and make
Into greatly waste.
Content of the invention
The technical problem to be solved is for above not enough, there is provided a kind of metal-mold low-pressure casting aerofluxuss dress
Put, with easy mold release, good exhaust effect and be easy to visual inspection cast product exhaust gas conditions and founding materialses gas forming amount to change
Advantage, while also have economic and practical, simple to operate, environment friendly and pollution-free.
The present invention also provides a kind of method for exhausting using above-mentioned exhaust apparatus, have the advantages that process is simple, efficiency high,
Without the need for dismantling every time, aerofluxuss are more unimpeded compared to existing technology, and whole structure is good, in the case where 300 DEG C of high temperature are close to, saves 15
The take-down time of～20 minutes, the work efficiency of form removal is improve, reduce the labor intensity of high temperature service, replacement frequency drops
Low, save cost；
And high using the workpiece product quality of the casting technique preparation of the present invention, effectively prevent workpiece and pore occur or lack
The phenomenon of material, conforming product rate reach more than 99.9%.
For solving above-mentioned technical problem, the technical scheme is that：A kind of metal-mold low-pressure casting exhaust apparatus, its are special
Levy and be：Exhaust apparatus includes exhaust apparatus main body, is provided with the cavity for aerofluxuss in exhaust apparatus main body.
A kind of prioritization scheme, is provided with high temperature resistant every liquid air-permeable layer in the cavity.
Another kind of prioritization scheme, the high temperature resistant are ceramic fiber layer every liquid air-permeable layer.
Another prioritization scheme, the cavity include that steam vent, steam vent are arranged on high temperature resistant every the lower section of liquid air-permeable layer.
Further prioritization scheme, the steam vent include bellmouth and the bellmouth boss for connecting, the microcephaly of bellmouth
End is connected with bellmouth boss, and in straight-tube shape, bellmouth boss is positioned close to high temperature resistant every liquid air-permeable layer to bellmouth boss
Side.
Further prioritization scheme, the high temperature resistant are provided with fixed mount above liquid air-permeable layer.
Further prioritization scheme, the fixed mount include fixed mount supporting member, the end of fixed mount supporting member
It is connected with fixed mount fixing component.
Further prioritization scheme, the fixed mount supporting member adopt V-shaped rest, fixed mount fixing component to be arranged on
The opening of fixed mount supporting member.
Further prioritization scheme, the fixed mount fixing component are triangular in shape, fixed mount fixing component place plane
Vertical with fixed mount supporting member place plane.
The present invention also provides a kind of metal-mold low-pressure casting method for exhausting, it is characterised in that：The method for exhausting include with
Lower step：By above-mentioned technical proposal, one of them described exhaust apparatus is bumped in casting metal mold, the cavity of exhaust apparatus with
Foundry goods die cavity is connected, and during casting filling, the gas in foundry goods die cavity is discharged by the steam vent of exhaust apparatus lower end, in high temperature resistant
Under the iris action of liquid air-permeable layer, metal liquid can not pass through, and gas is discharged, and complete to cast exhaust process.
The present invention adopts above technical scheme, compared with prior art, with advantages below：Exhaust apparatus includes that aerofluxuss are filled
Main body is put, the cavity for aerofluxuss in exhaust apparatus main body, is provided with, and the high temperature resistant that ceramic fibre makes is provided with cavity saturating every liquid
Gas-bearing formation, high temperature resistant are provided with fixed mount above liquid air-permeable layer, and high temperature resistant is provided with steam vent below liquid air-permeable layer, and steam vent includes
The bellmouth of connection and bellmouth boss, the little head end of bellmouth are connected with bellmouth boss, and bellmouth boss is bored in straight-tube shape
Shape hole boss is positioned close to high temperature resistant every the side of liquid air-permeable layer, with easy mold release, good exhaust effect and is easy to visual inspection
The advantage that cast product exhaust gas conditions and founding materialses gas forming amount change, while also have economic and practical, simple to operate, environmental protection
Free of contamination advantage.
The method for exhausting that metal mold precision low pressure casting is applied to using the exhaust apparatus, with process is simple, efficiency
High advantage, without the need for dismantling every time, aerofluxuss are more unimpeded compared to existing technology, and whole structure is good, is being close to 300 DEG C of high temperature
Under, the take-down time of 15～20 minutes is saved, the work efficiency of form removal is improve, the work for reducing high temperature service is strong
Degree, replacement frequency reduce, and save cost；
And the workpiece product quality that prepared using assembly of the invention and technique is high, effectively prevent workpiece occur pore or
The phenomenon of scarce material, conforming product rate reach more than 99.9%.
The present invention is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Accompanying drawing 1 is the structural representation of exhaust apparatus in the embodiment of the present invention 1；
Accompanying drawing 2 is another structural representation of exhaust apparatus in the embodiment of the present invention 1；
Accompanying drawing 3 is the partial enlargement structural representation in accompanying drawing 1 at I；
Accompanying drawing 4 is the structural representation of fixed mount in the embodiment of the present invention 1；
Accompanying drawing 5 is another structural representation of fixed mount in the embodiment of the present invention 1；
Accompanying drawing 6 is the dimensional structure diagram of fixed mount in the embodiment of the present invention 1；
Accompanying drawing 7 is the application state schematic diagram of exhaust apparatus in the embodiment of the present invention 1；
Accompanying drawing 8 is the structural representation of exhaust apparatus in the embodiment of the present invention 2；
Accompanying drawing 9 is the partial enlargement structural representation in accompanying drawing 8 at I,
Accompanying drawing 10 is the structural representation of exhaust apparatus in the embodiment of the present invention 3.
In figure,
1- exhaust apparatus, 11- exhaust apparatus main bodys, 111- cavitys, 112- exhaust apparatus base plates, 113- extensions, 12- are solid
Determine nut, 13- fixed mounts, 131- fixed mount supporting members, 132- fixed mount fixing components, 14- steam vents, 141- bellmouths,
142- bellmouth boss, 15- high temperature resistants cast metal mold, 3- model used for casting, 4- casting workpieces every liquid air-permeable layer, 2-.
Specific embodiment
Embodiment 1, as depicted in figs. 1 and 2, a kind of metal-mold low-pressure casting exhaust apparatus, exhaust apparatus 1 include that aerofluxuss are filled
Put main body 11, exhaust apparatus main body 11 is cylindrical, exhaust apparatus main body 11 centrally along being axially arranged with cavity 111, cavity 111
Section rounded, the one end open of cavity 111, between the end face of 11 homonymy of the other end of cavity 111 and exhaust apparatus main body
There is exhaust apparatus base plate 112, fixed mount 13 is provided with cavity 111, is provided with resistance between fixed mount 13 and exhaust apparatus base plate 112
Every liquid air-permeable layer 15, high temperature resistant is used for the gas overflowing for realizing producing in casting process to high temperature every liquid air-permeable layer 15, while energy again
Intercept alloy liquid to ooze out, fixed mount 13 is used for fixing and being compacted high temperature resistant every liquid air-permeable layer 15, prevents alloy liquid by resistance to height
Temperature is gone out every liquid air-permeable layer 15.
Metal-mold low-pressure casting exhaust apparatus is applied to high temperature resistant every the selection of liquid air-permeable layer 15 in the present embodiment is carried out
Test, test result are as shown in table 1.
Table 1
| Selection | Test result |
| Ceramic fibre | No liquid is overflowed, good permeability, casting workpiece bubble-free, free from admixture |
| High temperature resistant asbestos | Frangible, scaling-off, asbestos disintegrating slag drops and is set in surface of the work |
Exhaust apparatus main body 11 is connected with extension 113 away from one end of exhaust apparatus base plate 112, and cavity 111 is passed through
Extension 113 is worn, the periphery of extension 113 is connected with fixing nut 12.
Through having steam vent 14, steam vent 14 to connect with cavity 111 on exhaust apparatus base plate 112 below cavity 111, arrange
Pore 14 is provided with several, and in the present embodiment, steam vent 14 is provided with 7, and wherein 1 steam vent is arranged on exhaust apparatus base plate 112
Center, remaining 6 steam vent is distributed on the periphery at 112 center of exhaust apparatus base plate.
As shown in figure 3, the steam vent 14 includes bellmouth 141 and the bellmouth boss 142 for connecting, the bellmouth
141 little head end is connected with bellmouth boss 142, bellmouth boss 142 be in straight-tube shape, the diameter and cone of bellmouth boss 142
The diameter of 141 little head end of shape hole is identical, and bellmouth boss 142 is positioned close to one end of cavity 111.Using the structure, Yi Shi
The existing demoulding, demoulding success rate 100%, and surface of the work is smooth after the demoulding, without sharp sharp face, safe and reliable.
As shown in Figure 4, Figure 5 and Figure 6, fixed mount 13 is made from the metal with certain rigidity.
The fixed mount 13 includes that fixed mount supporting member 131, fixed mount supporting member 131 adopt V-shaped rest, fixed mount
The end of 131 opening of supporting member is connected with fixed mount fixing component 132 respectively, and fixed mount fixing component 132 is in three
Angular, in two fixed mount fixing components 132 are generally aligned in the same plane, 132 place plane of fixed mount fixing component and fixed mount
131 place plane of support component is vertical, and fixed mount fixing component 132 is located at the inner side of fixed mount supporting member 131, two fixed mounts
Fixing component 132 is symmetrical arranged centered on the centrage of fixed mount supporting member 131.
As shown in fig. 7, a kind of metal-mold low-pressure casting method for exhausting, the method for exhausting is comprised the following steps：Will be described
Exhaust apparatus 1 is bumped in casting metal mold 2, and steam vent 14 is connected with foundry goods die cavity, gas during casting filling, in foundry goods die cavity
Discharged by the steam vent 14 of 1 lower end of exhaust apparatus, as high temperature resistant is every the iris action of liquid air-permeable layer 15, metal liquid can not
Pass through, only gas can pass through, so as to complete to cast exhaust process.
Fill after type finishes, part metals liquid can be solidified in the steam vent 14 of exhaust apparatus 1, upper due to steam vent 14
Side has high temperature resistant to cover every liquid air-permeable layer 15, and gas can pass through to discharge, and metal liquid is stagnated and solidify to this.
Embodiment 2, as shown in Figure 8 and Figure 9, a kind of metal-mold low-pressure casting exhaust apparatus, including steam vent 14, steam vent
14 is tapered, and the stub end of steam vent 14 is located at bottom, is easy to the demoulding, and remaining structure is no longer gone to live in the household of one's in-laws on getting married in the present embodiment with embodiment 1
State.
When exhaust apparatus in the present embodiment is applied to during metal-mold low-pressure casting, good exhaust effect, the work for obtaining
Part product quality is high, effectively prevent the phenomenon that pore occurs in workpiece, and the sharp face of sheet type easily occurs in demoulding point upper end, though
Workpiece quality is not affected, but is sometimes prone to scratch operator.
Embodiment 3, as shown in Figure 10, a kind of metal-mold low-pressure casting exhaust apparatus, including steam vent 14, steam vent 14 is
Straight hole, remaining structure are repeated no more in the present embodiment with embodiment 1.
When exhaust apparatus in the present embodiment is applied to during metal-mold low-pressure casting, good exhaust effect, the work for obtaining
Part product quality is high, effectively prevent the phenomenon that pore occurs in workpiece, but the demoulding is more difficult, the aluminum post solidified in steam vent 14
Easily blocking steam vent, need to dismantle cleaning.
The above citing for best mode for carrying out the invention, it is common that the part that does not wherein address in detail is this area
The common knowledge of technical staff.Protection scope of the present invention is defined by the content of claim, any technology based on the present invention
The equivalent transformation for enlightening and carrying out, also within protection scope of the present invention.
Claims (8)
1. a kind of metal-mold low-pressure casting exhaust apparatus, it is characterised in that：Exhaust apparatus（1）Including exhaust apparatus main body（11）,
Exhaust apparatus main body（11）Cavity for aerofluxuss is inside provided with；
High temperature resistant is provided with the cavity every liquid air-permeable layer（15）；
The cavity includes steam vent（14）, steam vent（14）High temperature resistant is arranged on every liquid air-permeable layer（15）Lower section；
The steam vent（14）Including the bellmouth for connecting（141）With bellmouth boss（142）, bellmouth（141）Little head end
With bellmouth boss（142）Connection.
2. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 1, it is characterised in that：The high temperature resistant is saturating every liquid
Gas-bearing formation（15）For ceramic fiber layer.
3. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 1, it is characterised in that：The bellmouth boss
（142）In straight-tube shape, bellmouth boss（142）High temperature resistant is positioned close to every liquid air-permeable layer（15）Side；
The bellmouth boss（142）Diameter and bellmouth（141）The diameter of little head end is identical.
4. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 1, it is characterised in that：The high temperature resistant is saturating every liquid
Gas-bearing formation（15）Top is provided with fixed mount（13）.
5. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 4, it is characterised in that：The fixed mount（13）Bag
Include fixed mount supporting member（131）, fixed mount supporting member（131）End be connected with fixed mount fixing component（132）.
6. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 5, it is characterised in that：The fixed mount supports structure
Part（131）Using V-shaped rest, fixed mount fixing component（132）It is arranged on fixed mount supporting member（131）Opening.
7. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 5, it is characterised in that：The fixed mount fixes structure
Part（132）Triangular in shape, fixed mount fixing component（132）Place plane and fixed mount supporting member（131）Place plane is vertical.
8. a kind of metal-mold low-pressure casting method for exhausting, it is characterised in that：The method for exhausting is comprised the following steps：Will be such as right
Require one of them described exhaust apparatus of 1-7（1）It is bumped into casting metal mold（2）In, exhaust apparatus（1）Cavity and foundry goods type
Chamber connects, and during casting filling, the gas in foundry goods die cavity passes through exhaust apparatus（1）The steam vent of lower end（14）Discharge, in resistance to height
Temperature is every liquid air-permeable layer（15）Iris action under, metal liquid can not pass through, gas discharge, complete cast exhaust process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309761.XA CN104889365B (en) | 2015-06-09 | 2015-06-09 | A kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309761.XA CN104889365B (en) | 2015-06-09 | 2015-06-09 | A kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting |
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| CN104889365A CN104889365A (en) | 2015-09-09 |
| CN104889365B true CN104889365B (en) | 2017-03-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106166607A (en) * | 2016-08-29 | 2016-11-30 | 上海交通大学 | The suction pouring device of cast magnesium alloy |
| CN114210951A (en) * | 2021-12-21 | 2022-03-22 | 浙江万丰精密制造有限公司 | Flange device of liquid lifting pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751795A (en) * | 1993-08-10 | 1995-02-28 | Mitsubishi Motors Corp | Gas exhausting device in metallic mold equipment for casting |
| KR20040102806A (en) * | 2003-05-29 | 2004-12-08 | 현대자동차주식회사 | Gas exhaust device of low press die casting |
| CN201455230U (en) * | 2009-06-26 | 2010-05-12 | 宁波强盛机械模具有限公司 | Core vent for aluminum alloy metal-type low-pressure casting |
| CN201644714U (en) * | 2010-01-05 | 2010-11-24 | 长沙市遥疆金属材料科技有限公司 | Venting plug with straight-through gradient pore structure |
| CN201950199U (en) * | 2010-10-15 | 2011-08-31 | 哈尔滨东安汽车动力股份有限公司 | Semi-closed exhaust apparatus for water sleeve core |
| CN202639289U (en) * | 2012-01-06 | 2013-01-02 | 内蒙古方圆科技有限公司 | Low pressure casting venting plug |
| CN204747462U (en) * | 2015-06-09 | 2015-11-11 | 山东豪迈机械科技股份有限公司 | Metal mold low pressure casting exhaust apparatus |
-
2015
- 2015-06-09 CN CN201510309761.XA patent/CN104889365B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751795A (en) * | 1993-08-10 | 1995-02-28 | Mitsubishi Motors Corp | Gas exhausting device in metallic mold equipment for casting |
| KR20040102806A (en) * | 2003-05-29 | 2004-12-08 | 현대자동차주식회사 | Gas exhaust device of low press die casting |
| CN201455230U (en) * | 2009-06-26 | 2010-05-12 | 宁波强盛机械模具有限公司 | Core vent for aluminum alloy metal-type low-pressure casting |
| CN201644714U (en) * | 2010-01-05 | 2010-11-24 | 长沙市遥疆金属材料科技有限公司 | Venting plug with straight-through gradient pore structure |
| CN201950199U (en) * | 2010-10-15 | 2011-08-31 | 哈尔滨东安汽车动力股份有限公司 | Semi-closed exhaust apparatus for water sleeve core |
| CN202639289U (en) * | 2012-01-06 | 2013-01-02 | 内蒙古方圆科技有限公司 | Low pressure casting venting plug |
| CN204747462U (en) * | 2015-06-09 | 2015-11-11 | 山东豪迈机械科技股份有限公司 | Metal mold low pressure casting exhaust apparatus |
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