CN107931529B - Closing-unchoked running system - Google Patents
Closing-unchoked running system Download PDFInfo
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- CN107931529B CN107931529B CN201711188523.3A CN201711188523A CN107931529B CN 107931529 B CN107931529 B CN 107931529B CN 201711188523 A CN201711188523 A CN 201711188523A CN 107931529 B CN107931529 B CN 107931529B
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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
- B22C9/082—Sprues, pouring cups
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Abstract
A kind of closing-unchoked running system, it is related to casting technology field, including sprue, cross gate, several passageway pieces, ingate, by changing the depth-width ratio of cross gate and the ratio of width to height of passageway piece, and the setting position of first passageway piece and the last one passageway piece, to provide enough distances and space to cross gate, make to flow into the top that miscellaneous slag in the molten metal of cross gate floats on cross gate, miscellaneous slag is avoided to flow into the piece of passageway, and then flowed into type chamber by passageway piece, influence the quality of casting.And the case where filter screen is set in cross gate, save the cost are eliminated simultaneously.
Description
Technical field
The present invention relates to casting technology fields, and in particular to a kind of closing-unchoked running system.
Background technique
Traditional running gate system according to the proportionate relationship in running gate system each unit section, can be divided into it is closed, semi-enclosed,
Open, closing-open 4 seed type: (1) on ingate, molten metal is easy to fill in the choked flow section of positive-pressure gating system
Full running gate system, slag blocking capacity is stronger, and the consumption of common metal liquid is few, and clears up conveniently, but the flow velocity for filling type liquid stream is fast, scouring force
Greatly, it is also easy to produce splash, causes volume gas and inclusion defect；(2) enlarged running system choked flow section is on ingate, cross gate
Section is maximum, and running gate system can be full of, but more closed evening, has certain slag blocking capacity, fills the stationarity of type and to type chamber
Scouring force it is better than closed；(3) unchoked running system choked flow section is on sprue, fills that type is steady, and scouring force is small, but
Molten metal running gate system not easy to fill is in pressure-free flow state, and slag blocking capacity is poor, and the consumption of common metal liquid is more, is not easily cleaned；
(4) closing-unchoked running system is closed before choked flow section, is opened thereafter, therefore not only improves pushing off the slag, and it is steady to make to fill type,
Have closed and open advantage concurrently；But generally in cross gate, cross gate can not be rapidly filled with (unless cross gate in choked flow section
Below casting), there is very big air gap, be easy to cause volume gas and inclusion defect.
Summary of the invention
In view of this, it is necessary to provide a kind of closing-unchoked running system of the good save the cost simultaneously of pushing off the slag effect, packet
Include sprue, cross gate, several passageway pieces, ingate, the sprue be it is cylindric, the lower end of sprue and cross gate hang down
It is direct-connected logical, sprue base is set in sprue bottom, passageway piece is arranged on the side wall of cross gate, and one end of passageway piece and cross
Running channel connection, the other end of passageway piece are connected to ingate, and ingate is arranged in passageway piece bottom, and ingate is connected to type chamber,
Cross gate end is provided with slag trap, the cross gate section is narrow high type structure, and depth-width ratio >=2:1 of cross gate is described
Passageway piece is wide thin type structure, the ratio of width to height >=4:1 of passageway piece, so that the molten metal in cross gate is flowed slowly by passageway piece
Into type chamber, avoids molten metal splashing and generate vortex, the position that passageway piece is connect with cross gate is lower than the height of cross gate
, so that the dross height of the molten metal in cross gate is higher than the height of passageway piece, and then dross is avoided to flow into passageway piece
It is interior, the quantity of passageway piece according to casting size and be arranged, the passageway piece nearest apart from sprue is first passageway piece, distance
The farthest passageway piece of sprue is the last one passageway piece, and first passageway piece is with a distance from sprue equal to sprue height
2 times so that the miscellaneous slag in molten metal floats without flowing into passageway piece, the last one passageway piece with a distance from cross gate end also etc.
In 2 times of sprue height, so that the miscellaneous slag in cross gate is discharged into through cross gate end into slag trap, without entering passageway
Piece, the interval that intermediate passageway piece is arranged in are more than or equal to 2 times of passageway piece width, are made with providing enough distances for cross gate
Miscellaneous slag in cross gate avoids flowing into passageway piece influence casting quality floating to the top of cross gate.
Preferably, cross gate end is provided with cross gate extension, the bottom of cross gate extension be it is horizontal, it is horizontal to pour
The top of road extension is ramp-like to dip down, and from the starting point of cross gate extension to cross gate extension end, cross gate prolongs
The cross-sectional area of long section gradually becomes smaller, and situation of turning back occurs to prevent molten metal from flowing to cross gate extension end, slag trap is set
The bottom in cross gate extension end is set, to initially flow into the molten metal to cross gate by the guidance of cross gate extension
Slag inclusion guide into slag trap.
Preferably, the ingate includes entrance and outlet section, and the entrance is isometrical L-type passage, and outlet section is
The cross-sectional area of vertical variable diameter passage, outlet section is gradually increased from lower end to upper end, the minimum sectional area and entrance of outlet section
Sectional area it is equal so that molten metal is flowed slowly by ingate into type chamber, avoid generating whirlpool when molten metal inflow type chamber
Stream and splashing.
Preferably, the position of the 1/3-2/3 of passageway leaf length is arranged in the entrance of ingate, and sets in passageway piece end
It is equipped with the passageway piece extension tilted down, to collect the miscellaneous slag for flowing into the molten metal in the piece of passageway.
Preferably, the outlet section of ingate is inverted cone channel, and the top of outlet section is connected to type chamber, the top of outlet section
Bore be greater than bottom end bore play current stabilization so that flow velocity is slack-off when molten metal fills type from outlet section upwards and avoid slag
Effect, the tip section area and bottom end sectional area ratio of outlet section are 6:1 ~ 10:1.
Preferably, the ratio between area of section of sprue, cross gate, passageway piece and ingate=1:1.5 ~ 3:0.9 ~ 1:0.8 ~
0.9, choked flow section is arranged in ingate, to realize being rapidly filled with for cross gate, effectively avoids the metal for flowing into passageway piece
Liquid gas enclosure and it is mingled with.
The present invention by adopting the above technical scheme, the beneficial effect is that: including sprue, cross gate, several passageway pieces,
Ingate passes through the depth-width ratio of change cross gate and the ratio of width to height of passageway piece and first passageway piece and the last one passageway piece
Setting position make to flow into miscellaneous slag in the molten metal of cross gate to provide enough distances and space to cross gate and float on
The top of cross gate avoids miscellaneous slag from flowing into the piece of passageway, and then is flowed into type chamber by passageway piece, influences the matter of casting
Amount.And the case where filter screen is set in cross gate, save the cost are eliminated simultaneously.
Detailed description of the invention
Fig. 1 is closing-unchoked running system structural schematic diagram of a better embodiment.
Fig. 2 is the structural schematic diagram of another angle of closing-unchoked running system in Fig. 1.
Fig. 3 is the partial enlarged view of A-A cross-sectional view in Fig. 2.
In figure: closing-unchoked running system 10, sprue 20, sprue base 21, cross gate 30, cross gate extension
31, slag trap 32, passageway piece 40, passageway piece extension 41, ingate 50, entrance 51, outlet section 52.
Specific embodiment
Fig. 1 to Fig. 3 is please referred to, the embodiment of the invention provides a kind of closing-unchoked running systems 10, including sprue
20, cross gate 30, several passageway pieces 40, ingate 50, the sprue 20 be it is cylindric, the lower end of sprue 20 is poured with horizontal
Sprue base is arranged in 20 bottom of sprue so that molten metal is drained to cross gate 30 by sprue 20 in 30 vertical connection of road
21, the bubble emersion to mitigate impact of the molten metal to 20 bottom of sprue, while in the molten metal that sprue 20 is flowed down, mistake
Road piece 40 is arranged on the side wall of cross gate 30, and one end of passageway piece 40 is connected to cross gate 30, the other end of passageway piece 40
It is connected to ingate 50, ingate 50 is arranged in 40 bottom of passageway piece, and ingate 50 is connected to type chamber, will to pass through passageway piece 40
Molten metal in cross gate 30 is drained to ingate 50, and then is guided molten metal to type chamber by ingate 50 and be poured,
Ingate 50 can not also be set when being poured light casting, is directly guided molten metal to type chamber, in cross gate by passageway piece 40
30 ends are provided with slag trap 32, and to collect the miscellaneous slag flowed out in cross gate 30,30 section of cross gate is narrow high type structure,
Depth-width ratio >=2:1 of cross gate, the passageway piece 40 are wide thin type structure, the ratio of width to height >=4:1 of passageway piece, so that cross gate 30
Interior molten metal passes through passageway piece 40 and flows slowly into type chamber, avoids molten metal splashing and generates vortex, passageway piece 40 and cross
The position that running channel 30 connects is lower than the 1/2-2/3 of the height of cross gate 30, so that the dross height of the molten metal in cross gate is high
In the height of passageway piece 40, and then dross is avoided to flow into passageway piece 40, the quantity of passageway piece 40 according to casting size and set
It sets, the passageway piece 40 nearest apart from sprue 20 is first passageway piece 40, and the passageway piece 40 farthest apart from sprue 20 is most
The latter passageway piece 40, first passageway piece 40 is equal to 2 times of 20 height of sprue with a distance from sprue 20, so that molten metal
Interior miscellaneous slag floats without flowing into passageway piece 40, the last one passageway piece 40 is also equal to sprue with a distance from 30 end of cross gate
2 times of 20 height, so that the miscellaneous slag in cross gate 30 is discharged into through 30 end of cross gate into slag trap 32, without entering passageway piece
40, the interval that intermediate passageway piece 40 is arranged in is more than or equal to 2 times of 40 width of passageway piece, enough to provide for cross gate 30
Distance makes the miscellaneous slag in cross gate 30 floating to the top of cross gate 30, avoids flowing into the influence casting quality of passageway piece 40.
Further, 30 end of cross gate is provided with cross gate extension 31, the bottom of cross gate extension 31 is water
Flat-shaped, the top of cross gate extension 31 is ramp-like to dip down, from the starting point of cross gate extension 31 to cross gate extension
The cross-sectional area of 31 ends, cross gate extension 31 gradually becomes smaller, and is gone out with preventing molten metal from flowing to 31 end of cross gate extension
Now turn back situation, the bottom of 31 end of cross gate extension is arranged in slag trap 32, with by the guidance of cross gate extension 31 most
The slag inclusion in molten metal just flowed into cross gate 30 is guided into slag trap 32.
Since when being poured large scale casting, the metal liquid measure flowed into sprue 20 and cross gate 30 is very big, therefore
The flow velocity of the molten metal of inflow type chamber, further, the ingate are adjusted by the way that ingate is arranged in 40 end of passageway piece
50 include entrance 51 and outlet section 52, and the entrance 51 is isometrical L-type passage, and outlet section 52 is vertical variable diameter passage, out
The cross-sectional area of mouth section 52 is gradually increased from lower end to upper end, the sectional area phase of the minimum sectional area and entrance 51 of outlet section 52
Deng again molten metal is flowed slowly into from the entrance 51 of ingate 50, and the area of section of outlet is gradually increased, and molten metal can be made to pass through
Outlet section 52 smoothly flows into type chamber, to keep Filling Processes of Castings steady, avoid generating vortex and splash.
Further, the position of the 1/3-2/3 of passageway leaf length is arranged in the entrance 51 of ingate, is made with providing distance
Miscellaneous slag in molten metal in the piece of passageway and is provided with the passageway tilted down in 40 end of passageway piece floating to the top of passageway piece
Piece extension 41, to collect the miscellaneous slag for flowing into the molten metal in passageway piece 40.
Further, the outlet section 52 of ingate 50 is inverted cone channel, and the top of outlet section 52 is connected to type chamber, is exported
The bore on the top of section 52 is greater than the bore of bottom end, so that flow velocity is slack-off when molten metal fills type from outlet section 52 upwards, plays steady
Stream avoids the effect of slag, and the tip section area and bottom end sectional area ratio of outlet section 52 are 6:1 ~ 10:1.
Further, the ratio between area of section of sprue 20, cross gate 30, passageway piece 40 and ingate 50=1:1.5:
The sectional area of 0.9:0.8, ingate 50 are minimum, can guarantee that the metal flow velocity for flowing into ingate 50 is small, by choked flow section
Be arranged in ingate 50, to realize being rapidly filled with for cross gate 30, effectively avoid the molten metal gas enclosure for flowing into passageway piece 40 and
It is mingled with.
Embodiment 1:
A kind of closing-unchoked running system 10, including sprue 20, cross gate 30, several passageway pieces 40, ingate
50, the sprue 20 is cylindric, the lower end of sprue 20 and 30 vertical connection of cross gate, to pass through sprue 20 for metal
Liquid is drained to cross gate 30, and sprue base 21 is arranged in 20 bottom of sprue, is rushed with mitigating molten metal to 20 bottom of sprue
Bubble emersion in the molten metal for hitting, while sprue 20 being flowed down, passageway piece 40 is arranged on the side wall of cross gate 30, and mistake
One end of road piece 40 is connected to cross gate 30, and the other end of passageway piece 40 is connected to ingate 50, and ingate 50 is arranged in passageway
40 bottom of piece, ingate 50 are connected to type chamber, the molten metal in cross gate 30 is drained to ingate 50 by passageway piece 40,
And then molten metal is guided to type chamber by ingate 50 and is poured, ingate 50 can not also be set when being poured light casting,
Directly molten metal is guided to type chamber by passageway piece 40,30 end of cross gate is provided with slag trap 32, to collect cross gate
The miscellaneous slag flowed out in 30,30 section of cross gate are narrow high type structure, depth-width ratio >=2:1 of cross gate, the passageway piece 40
For wide thin type structure, the ratio of width to height >=4:1 of passageway piece so that molten metal in cross gate 30 by passageway piece 40 flow slowly into
In type chamber, avoids molten metal splashing and generate vortex, the position that passageway piece 40 is connect with cross gate 30 is lower than the height of cross gate 30
The 1/2 of degree so that the dross height of the molten metal in cross gate is higher than the height of passageway piece 40, and then avoids dross from flowing into passageway
In piece 40, the quantity of passageway piece 40 according to casting size and be arranged, the passageway piece 40 nearest apart from sprue 20 is first
Passageway piece 40, the passageway piece 40 farthest apart from sprue 20 are the last one passageway piece 40, and first passageway piece 40 is from sprue
20 distance is equal to 2 times of 20 height of sprue, so that the miscellaneous slag in molten metal floats without flowing into passageway piece 40, the last one
Passageway piece 40 is also equal to 2 times of 20 height of sprue with a distance from 30 end of cross gate, so that the miscellaneous slag in cross gate 30 is through cross
30 end of running channel is discharged into slag trap 32, and without entering passageway piece 40, the interval that intermediate passageway piece 40 is arranged in is greater than etc.
In 2 times of 40 width of passageway piece, make the miscellaneous slag in cross gate 30 floating to cross gate 30 to provide enough distances for cross gate 30
Top, avoiding flowing into passageway piece 40 influences casting quality.
Further, 30 end of cross gate is provided with cross gate extension 31, the bottom of cross gate extension 31 is water
Flat-shaped, the top of cross gate extension 31 is ramp-like to dip down, from the starting point of cross gate extension 31 to cross gate extension
The cross-sectional area of 31 ends, cross gate extension 31 gradually becomes smaller, and is gone out with preventing molten metal from flowing to 31 end of cross gate extension
Now turn back situation, the bottom of 31 end of cross gate extension is arranged in slag trap 32, with by the guidance of cross gate extension 31 most
The slag inclusion in molten metal just flowed into cross gate 30 is guided into slag trap 32.
Since when being poured large scale casting, the metal liquid measure flowed into sprue 20 and cross gate 30 is very big, therefore
The flow velocity of the molten metal of inflow type chamber, further, the ingate are adjusted by the way that ingate is arranged in 40 end of passageway piece
50 include entrance 51 and outlet section 52, and the entrance 51 is isometrical L-type passage, and outlet section 52 is vertical variable diameter passage, out
The cross-sectional area of mouth section 52 is gradually increased from lower end to upper end, the sectional area phase of the minimum sectional area and entrance 51 of outlet section 52
Deng again molten metal is flowed slowly into from the entrance 51 of ingate 50, and the area of section of outlet is gradually increased, and molten metal can be made to pass through
Outlet section 52 smoothly flows into type chamber, to keep Filling Processes of Castings steady, avoid generating vortex and splash.
Further, 1/3 position of passageway leaf length is arranged in the entrance 51 of ingate, makes passageway to provide distance
Miscellaneous slag in molten metal in piece and is provided with the passageway piece tilted down in 40 end of passageway piece and prolongs floating to the top of passageway piece
Long section 41, to collect the miscellaneous slag for flowing into the molten metal in passageway piece 40.
Further, the outlet section 52 of ingate 50 is inverted cone channel, and the top of outlet section 52 is connected to type chamber, is exported
The bore on the top of section 52 is greater than the bore of bottom end, so that flow velocity is slack-off when molten metal fills type from outlet section 52 upwards, plays steady
Stream avoids the effect of slag, and the tip section area and bottom end sectional area ratio of outlet section 52 are 6:1.
Further, the ratio between area of section of sprue 20, cross gate 30, passageway piece 40 and ingate 50=1:1.5:
The sectional area of 0.9:0.8, ingate 50 are minimum, can guarantee that the metal flow velocity for flowing into ingate 50 is small, by choked flow section
Be arranged in ingate 50, to realize being rapidly filled with for cross gate 30, effectively avoid the molten metal gas enclosure for flowing into passageway piece 40 and
It is mingled with.
Embodiment 2:
A kind of closing-unchoked running system 10, including sprue 20, cross gate 30, several passageway pieces 40, ingate
50, the sprue 20 is cylindric, the lower end of sprue 20 and 30 vertical connection of cross gate, to pass through sprue 20 for metal
Liquid is drained to cross gate 30, and sprue base 21 is arranged in 20 bottom of sprue, is rushed with mitigating molten metal to 20 bottom of sprue
Bubble emersion in the molten metal for hitting, while sprue 20 being flowed down, passageway piece 40 is arranged on the side wall of cross gate 30, and mistake
One end of road piece 40 is connected to cross gate 30, and the other end of passageway piece 40 is connected to ingate 50, and ingate 50 is arranged in passageway
40 bottom of piece, one end are connected to passageway piece 40, and the other end leads to type chamber, to pass through passageway piece 40 for the molten metal in cross gate 30
It is drained to ingate 50, and then molten metal is guided to type chamber by ingate 50 and is poured, it can also when being poured light casting
Not set ingate 50, directly molten metal is guided to type chamber by passageway piece 40,30 end of cross gate is provided with slag trap
32, to collect the miscellaneous slag flowed out in cross gate 30,30 section of cross gate is narrow high type structure, and depth-width ratio >=2:1 is described
Passageway piece 40 is wide thin type structure, the ratio of width to height >=4:1, so that the molten metal in cross gate 30 is flowed slowly by passageway piece 40
Into type chamber, avoids molten metal splashing and generate vortex, the position that passageway piece 40 is connect with cross gate 30 is lower than cross gate 30
The 2/3 of height so that the dross height of the molten metal in cross gate is higher than the height of passageway piece 40, and then avoids dross from flowing into
In road piece 40, the quantity of passageway piece 40 according to casting size and be arranged, the passageway piece 40 nearest from sprue 20 is first
Passageway piece 40, the passageway piece 40 farthest from sprue 20 are the last one passageway piece 40, and first passageway piece 40 is from sprue 20
Distance be equal to 2 times of 20 height of sprue so that the miscellaneous slag in molten metal floats without flowing into passageway piece 40, the last one mistake
Road piece 40 is also equal to 2 times of 20 height of sprue with a distance from 30 end of cross gate, so that the miscellaneous slag in cross gate 30 is poured through horizontal
30 end of road is discharged into slag trap 32, and without entering passageway piece 40, the interval that intermediate passageway piece 40 is arranged in is more than or equal to
2 times of 40 width of passageway piece make the miscellaneous slag in cross gate 30 floating to cross gate 30 to provide enough distances for cross gate 30
Top avoids flowing into passageway piece 40, to influence casting quality.
Further, 30 end of cross gate is provided with cross gate extension 31, the bottom of cross gate extension 31 is water
Flat-shaped, the top of cross gate extension 31 is ramp-like to dip down, from the starting point of cross gate extension 31 to cross gate extension
The cross-sectional area of 31 ends, cross gate extension 31 gradually becomes smaller, and is gone out with preventing molten metal from flowing to 31 end of cross gate extension
Now turn back situation, the bottom of 31 end of cross gate extension is arranged in slag trap 32, with by the guidance of cross gate extension 31 most
The slag inclusion in molten metal just flowed into cross gate 30 is guided into slag trap 32.
Since when being poured large scale casting, the metal liquid measure flowed into sprue 20 and cross gate 30 is very big, therefore
The flow velocity of the molten metal of inflow type chamber, further, the ingate are adjusted by the way that ingate is arranged in 40 end of passageway piece
50 include entrance 51 and outlet section 52, and the entrance 51 is isometrical right-angle structure, and outlet section 52 is variable-diameter structure, outlet section
52 cross-sectional area is gradually increased, and the minimum sectional area of outlet section 52 is equal with the sectional area of entrance 51, and molten metal pours in
The entrance 51 in road 50 flows slowly into, and the area of section of outlet is gradually increased again, and molten metal can be made stable by outlet section 52
It flows into type chamber, to keep Filling Processes of Castings steady, avoid generating vortex and splash.
Further, 2/3 position of passageway leaf length is arranged in the entrance 51 of ingate, and in 40 end of passageway piece
It is provided with the passageway piece extension 41 tilted down, to collect the miscellaneous slag for flowing into the molten metal in passageway piece 40.
Further, the outlet section 52 of ingate 50 is inverted cone channel, and the top of outlet section 52 is connected to type chamber, is exported
The bore on the top of section 52 is greater than the bore of bottom end, so that flow velocity is slack-off when molten metal fills type from outlet section 52 upwards, plays steady
Stream avoids the effect of slag, and the tip section area and bottom end sectional area ratio of outlet section 52 are 10:1.
Further, the ratio between area of section of sprue 20, cross gate 30, passageway piece 40 and ingate 50=1:3:1:
0.9, the sectional area of ingate 50 is minimum, can guarantee that the metal flow velocity for flowing into ingate 50 is small, choked flow section is arranged
In ingate 50, to realize being rapidly filled with for cross gate 30, effectively avoid the molten metal gas enclosure for flowing into passageway piece 40 and be mingled with.
Embodiment 3:
A kind of closing-unchoked running system 10, including sprue 20, cross gate 30, several passageway pieces 40, ingate
50, the sprue 20 is cylindric, the lower end of sprue 20 and 30 vertical connection of cross gate, to pass through sprue 20 for metal
Liquid is drained to cross gate 30, and sprue base 21 is arranged in 20 bottom of sprue, is rushed with mitigating molten metal to 20 bottom of sprue
Bubble emersion in the molten metal for hitting, while sprue 20 being flowed down, passageway piece 40 is arranged on the side wall of cross gate 30, and mistake
One end of road piece 40 is connected to cross gate 30, and the other end of passageway piece 40 is connected to ingate 50, and ingate 50 is arranged in passageway
40 bottom of piece, one end are connected to passageway piece 40, and the other end leads to type chamber, to pass through passageway piece 40 for the molten metal in cross gate 30
It is drained to ingate 50, and then molten metal is guided to type chamber by ingate 50 and is poured, it can also when being poured light casting
Not set ingate 50, directly molten metal is guided to type chamber by passageway piece 40,30 end of cross gate is provided with slag trap
32, to collect the miscellaneous slag flowed out in cross gate 30,30 section of cross gate is narrow high type structure, and depth-width ratio >=2:1 is described
Passageway piece 40 is wide thin type structure, the ratio of width to height >=4:1, so that the molten metal in cross gate 30 is flowed slowly by passageway piece 40
Into type chamber, avoids molten metal splashing and generate vortex, the position that passageway piece 40 is connect with cross gate 30 is lower than cross gate 30
The 3/5 of height so that the dross height of the molten metal in cross gate is higher than the height of passageway piece 40, and then avoids dross from flowing into
In road piece 40, the quantity of passageway piece 40 according to casting size and be arranged, the passageway piece 40 nearest from sprue 20 is first
Passageway piece 40, the passageway piece 40 farthest from sprue 20 are the last one passageway piece 40, and first passageway piece 40 is from sprue 20
Distance be equal to 2 times of 20 height of sprue so that the miscellaneous slag in molten metal floats without flowing into passageway piece 40, the last one mistake
Road piece 40 is also equal to 2 times of 20 height of sprue with a distance from 30 end of cross gate, so that the miscellaneous slag in cross gate 30 is poured through horizontal
30 end of road is discharged into slag trap 32, and without entering passageway piece 40, the interval that intermediate passageway piece 40 is arranged in is more than or equal to
2 times of 40 width of passageway piece make the miscellaneous slag in cross gate 30 floating to cross gate 30 to provide enough distances for cross gate 30
Top avoids flowing into passageway piece 40, to influence casting quality.
Further, 30 end of cross gate is provided with cross gate extension 31, the bottom of cross gate extension 31 is water
Flat-shaped, the top of cross gate extension 31 is ramp-like to dip down, from the starting point of cross gate extension 31 to cross gate extension
The cross-sectional area of 31 ends, cross gate extension 31 gradually becomes smaller, and is gone out with preventing molten metal from flowing to 31 end of cross gate extension
Now turn back situation, the bottom of 31 end of cross gate extension is arranged in slag trap 32, with by the guidance of cross gate extension 31 most
The slag inclusion in molten metal just flowed into cross gate 30 is guided into slag trap 32.
Since when being poured large scale casting, the metal liquid measure flowed into sprue 20 and cross gate 30 is very big, therefore
The flow velocity of the molten metal of inflow type chamber, further, the ingate are adjusted by the way that ingate is arranged in 40 end of passageway piece
50 include entrance 51 and outlet section 52, and the entrance 51 is isometrical right-angle structure, and outlet section 52 is variable-diameter structure, outlet section
52 cross-sectional area is gradually increased, and the minimum sectional area of outlet section 52 is equal with the sectional area of entrance 51, and molten metal pours in
The entrance 51 in road 50 flows slowly into, and the area of section of outlet is gradually increased again, and molten metal can be made stable by outlet section 52
It flows into type chamber, to keep Filling Processes of Castings steady, avoid generating vortex and splash.
Further, 1/2 position of passageway leaf length is arranged in the entrance 51 of ingate, and in 40 end of passageway piece
It is provided with the passageway piece extension 41 tilted down, to collect the miscellaneous slag for flowing into the molten metal in passageway piece 40.
Further, the outlet section 52 of ingate 50 is inverted cone channel, and the top of outlet section 52 is connected to type chamber, is exported
The bore on the top of section 52 is greater than the bore of bottom end, so that flow velocity is slack-off when molten metal fills type from outlet section 52 upwards, plays steady
Stream avoids the effect of slag, and the tip section area and bottom end sectional area ratio of outlet section 52 are 8:1.
Further, the ratio between area of section of sprue 20, cross gate 30, passageway piece 40 and ingate 50=1:2:0.95:
0.85, the sectional area of ingate 50 is minimum, can guarantee that the metal flow velocity for flowing into ingate 50 is small, choked flow section is arranged
In ingate 50, to realize being rapidly filled with for cross gate 30, effectively avoid the molten metal gas enclosure for flowing into passageway piece 40 and be mingled with.
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 (6)
1. a kind of closing-unchoked running system, including sprue, cross gate, several passageway pieces, ingate, described directly to pour
Road is cylindric, the lower end of sprue and cross gate vertical connection, sprue base is arranged in sprue bottom, piece setting in passageway exists
On the side wall of cross gate, and one end of passageway piece is connected to cross gate, and the other end of passageway piece is connected to ingate, and ingate is set
It sets in passageway piece bottom, ingate is connected to type chamber, and cross gate end is provided with slag trap, it is characterised in that: described horizontal to pour
Road section is narrow high type structure, and depth-width ratio >=2:1 of cross gate, the passageway piece is wide thin type structure, the ratio of width to height of passageway piece
>=4:1 avoids molten metal splashing and generates whirlpool so that the molten metal in cross gate is flowed slowly by passageway piece into type chamber
Stream, the position that passageway piece is connect with cross gate are lower than the 1/2-2/3 of the height of cross gate, so that the molten metal in cross gate is floating
Slag height is higher than the height of passageway piece, and then dross is avoided to flow into the piece of passageway, the quantity of passageway piece according to casting size and
Setting, the passageway piece nearest apart from sprue are first passageway piece, and the passageway piece farthest apart from sprue is the last one mistake
Road piece, first passageway piece are equal to 2 times of sprue height with a distance from sprue so that the miscellaneous slag in molten metal float without
Passageway piece is flowed into, the last one passageway piece is also equal to 2 times of sprue height with a distance from cross gate end, so that in cross gate
Miscellaneous slag be discharged into through cross gate end into slag trap, without entering passageway piece, the interval that intermediate passageway piece is arranged in is greater than
Equal to 2 times of passageway piece width, to provide the top that enough distances make the miscellaneous slag in cross gate floating to cross gate for cross gate,
It avoids flowing into passageway piece influence casting quality.
2. closing-unchoked running system as described in claim 1, it is characterised in that: cross gate end is provided with horizontal pour
Road extension, the bottom of cross gate extension be it is horizontal, the top of cross gate extension is to dip down ramp-like, is prolonged from cross gate
The starting point of long section to cross gate extension end, the cross-sectional area of cross gate extension gradually becomes smaller, to prevent molten metal stream
There is situation of turning back to cross gate extension end, the bottom of cross gate extension end is arranged in slag trap, to pour by horizontal
The slag inclusion that extension guidance in road initially flows into the molten metal to cross gate is guided into slag trap.
3. closing-unchoked running system as claimed in claim 2, it is characterised in that: the ingate include entrance and
Outlet section, the entrance are isometrical L-type passage, and outlet section is vertical variable diameter passage, the cross-sectional area of outlet section from lower end to
Upper end is gradually increased, and the minimum sectional area of outlet section and the sectional area of entrance are equal, so that molten metal is slow by ingate
It flows into type chamber, avoid generating vortex when molten metal inflow type chamber and splashes.
4. closing-unchoked running system as claimed in claim 3, it is characterised in that: the entrance of ingate is arranged in mistake
The position of the 1/3-2/3 of road leaf length, and the passageway piece extension tilted down is provided in passageway piece end, it is flowed into collecting
The miscellaneous slag of molten metal in passageway piece.
5. closing-unchoked running system as claimed in claim 4, it is characterised in that: the outlet section of ingate is back taper
The top in channel, outlet section is connected to type chamber, and the bore on the top of outlet section is greater than the bore of bottom end, so that molten metal is from outlet
Flow velocity is slack-off when section fills type upwards, plays the role of current stabilization and avoids slag, the tip section area and bottom end sectional area of outlet section
Than for 6:1 ~ 10:1.
6. closing-unchoked running system as claimed in claim 5, it is characterised in that: sprue, cross gate, passageway piece and
Choked flow section is arranged in ingate, to realize cross the ratio between area of section of ingate=1:1.5 ~ 3:0.9 ~ 1:0.8 ~ 0.9
Running channel is rapidly filled with, and is effectively avoided the molten metal gas enclosure for flowing into passageway piece and is mingled with.
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| CN201711188523.3A CN107931529B (en) | 2017-11-24 | 2017-11-24 | Closing-unchoked running system |
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| CN201711188523.3A CN107931529B (en) | 2017-11-24 | 2017-11-24 | Closing-unchoked running system |
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| CN107931529B true CN107931529B (en) | 2019-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109332596A (en) * | 2018-12-06 | 2019-02-15 | 吉林省大洺液压件铸造技术科技开发有限公司 | A kind of casting geomery and calculation method of running gate system spoiler |
| CN112139454A (en) * | 2020-09-30 | 2020-12-29 | 大连金河铸造有限公司 | Improved slag stopping structure and method for pouring system |
| CN113319254A (en) * | 2021-05-06 | 2021-08-31 | 北京鼎匠科技发展有限公司 | Pouring system for regulating and controlling flow velocity of liquid metal in each pouring section and pouring process thereof |
| CN116571693B (en) * | 2023-07-12 | 2023-09-08 | 河北钢研德凯科技有限公司 | Hollow blade preparation device and hollow blade preparation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319891A (en) * | 2011-09-13 | 2012-01-18 | 中国科学院金属研究所 | Gating system capable of effectively controlling air entrainment and slag entrainment and design method thereof |
| CN104815964A (en) * | 2015-04-30 | 2015-08-05 | 共享装备有限公司 | Gating system capable of solving inner runner inflow unevenness |
| CN104815961A (en) * | 2015-03-30 | 2015-08-05 | 共享装备有限公司 | Oblique vertical ceramic filter screen seat and casting system adopting filter screen seat |
| CN105562610A (en) * | 2016-01-19 | 2016-05-11 | 共享装备股份有限公司 | Casting all-ceramic pouring mechanism |
| CN105665643A (en) * | 2016-04-08 | 2016-06-15 | 宁夏共享模具有限公司 | Manufacturing method of 3D printing slant lathe bed casting |
| CN106825421A (en) * | 2017-02-21 | 2017-06-13 | 江苏恒立液压股份有限公司 | New spheroidal graphite cast iron system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202015104814U1 (en) * | 2015-09-10 | 2015-09-21 | GTP Schäfer Gießtechnische Produkte GmbH | Casting system and provided, a predetermined breaking point for the remaining metal in the gate pipe remaining frame |
-
2017
- 2017-11-24 CN CN201711188523.3A patent/CN107931529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319891A (en) * | 2011-09-13 | 2012-01-18 | 中国科学院金属研究所 | Gating system capable of effectively controlling air entrainment and slag entrainment and design method thereof |
| CN104815961A (en) * | 2015-03-30 | 2015-08-05 | 共享装备有限公司 | Oblique vertical ceramic filter screen seat and casting system adopting filter screen seat |
| CN104815964A (en) * | 2015-04-30 | 2015-08-05 | 共享装备有限公司 | Gating system capable of solving inner runner inflow unevenness |
| CN105562610A (en) * | 2016-01-19 | 2016-05-11 | 共享装备股份有限公司 | Casting all-ceramic pouring mechanism |
| CN105665643A (en) * | 2016-04-08 | 2016-06-15 | 宁夏共享模具有限公司 | Manufacturing method of 3D printing slant lathe bed casting |
| CN106825421A (en) * | 2017-02-21 | 2017-06-13 | 江苏恒立液压股份有限公司 | New spheroidal graphite cast iron system |
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