CN108788090A - A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold - Google Patents
A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold Download PDFInfo
- Publication number
- CN108788090A CN108788090A CN201810724962.XA CN201810724962A CN108788090A CN 108788090 A CN108788090 A CN 108788090A CN 201810724962 A CN201810724962 A CN 201810724962A CN 108788090 A CN108788090 A CN 108788090A
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- CN
- China
- Prior art keywords
- cavity
- rod body
- gonnecting rod
- gonnecting
- connecting rod
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
Abstract
The invention discloses a kind of cavity flow passage structures of aluminum alloy connecting rod liquid forging mold, it is pressure chamber at the center of cover half cavity plate, gonnecting rod body cavity is evenly equipped with around pressure chamber, pressure chamber is communicated with by the radial cross gate independently formed towards each gonnecting rod body cavity, it is provided with branching block in cross gate, the discharge port that cross gate separates is extended respectively to gonnecting rod body body of rod forming cavity and connect forming part and gonnecting rod body major part forming cavity with gonnecting rod body microcephaly's forming cavity to connect forming part with gonnecting rod body body of rod forming cavity by branching block；The present invention in melt channel by being provided with branching block, the discharge port in 2 melt channels is extended respectively into gonnecting rod body major part connection forming part and connects forming part with gonnecting rod body microcephaly, the width and thickness in the double melt channels of control, make molten metal while filling to each position of gonnecting rod body gonnecting rod body cavity, internal porosity 15% or so is reduced, refinement interior tissue crystal grain increases interior solid degree, improves connecting rod strength, hardness, wearability and casting qualification rate.
Description
Technical field
The invention belongs to the technical field of gate channel, it is specifically related to a kind of aluminum alloy connecting rod liquid forging mold
Cavity flow passage structure.
Background technology
One of the reason of multiple-cavity mold needs quality between making each product to immobilize, and deviation occurs for quality, molten metal
Loading time front and back difference is generated between the cavity of each product；Therefore it such as can simultaneously be filled relative to the cavity of each product
Molten metal, it is likely that make stable quality；From this viewpoint, exist the cavity of each product is generally fan-shaped relative to barrel
The scheme that ground is configured.
In addition, such as injecting molten metal in barrel, then contact is formed anxious in the part chilling of the low material tube inner wall of temperature
Cold tissue, and form oxidation film on the surface of molten metal；The solidification layer and oxidation film are mixed with the molten metal of liquid, shape
Half solidification layer of agglutination causes the mobility decline of molten metal and pressure transmission to decline, is such as blocked in sprue portion, then
Generation filling rate, which is obstructed, waits cavity fillings bad, or injection pressure is made to increase, and leads to the generation of flash, the lost of life of mold；Separately
The tissue of outer half solidification layer and the other parts difference of molten metal are very big, such as constitute the oxidation of a part for half solidification layer
Object, fracture chilling tissue enter in product, it is likely that causing impurity to be mixed into, the wall thickness generated in casting is bad, casting exists
Chilling layer stripping and other issues occurs after machining；Therefore in order to prevent such oxide and fracture chilling tissue from invading
Product, it is known technology that scheme as accumulating part is arranged around shunting.
The applicant has applied for an aluminium alloy linking liquid die forging metal mould cavity structure, application number in 2006
For：CN200620110368, the cavity flow passage structure have preferable effect for connecting rod prepared by common aluminum alloy materials
Fruit, the aluminum alloy connecting rod prepared for the aluminum alloy connecting rod of the 51K material preparations of high intensity, cavity flow passage structure liquid forging
Its technological requirement is much not achieved.
Invention content
In view of this, the purpose of the present invention is to provide a kind of cavity runners of aluminum alloy connecting rod liquid forging mold
Structure, a kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold in melt channel by being provided with shunting
The discharge port in 2 melt channels is extended respectively to gonnecting rod body major part forming cavity and connects molding with gonnecting rod body body of rod forming cavity by block
Portion and gonnecting rod body body of rod forming cavity connect forming part with gonnecting rod body microcephaly's forming cavity, control the width and thickness in double melt channels
Degree, makes molten metal while filling is to each position of gonnecting rod body gonnecting rod body cavity, reduces internal porosity 15% or so, refines internal group
Crystal grain is knitted, increases interior solid degree, improve connecting rod strength, hardness, wearability and casting qualification rate.
In order to achieve the above object, a kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold of the present invention,
It is surrounded by cover half cavity plate and dynamic model cavity plate, is pressure chamber at the center of cover half cavity plate, is evenly equipped with around the pressure chamber
No less than 2 gonnecting rod body cavities, the pressure chamber is communicated with to be poured by radial independently formed towards each the horizontal of gonnecting rod body cavity
Road is provided with branching block in the cross gate, and cross gate is separated into melt channel by the branching blockWith melt channel, institute
State melt channelWith melt channelDischarge port extend respectively to gonnecting rod body body of rod forming cavity and gonnecting rod body microcephaly's forming cavity and connect
It connects forming part and gonnecting rod body major part forming cavity and connects forming part with gonnecting rod body body of rod forming cavity.
Further, the melt channelDischarge portPlace, which is arranged close to gonnecting rod body microcephaly's forming cavity side, choker bar,
End set of the choker bar close to pressure chamber one end is arcuate structure, its described height is set as the 1/4 of melt channel I height
~1/3.
Further, uplink and the pressure head for making melt be full of gonnecting rod body cavity in pressure chamber are provided in the pressure chamber.
Further, it is respectively provided with the plenum chamber being arranged in a one-to-one correspondence with it at the top of the melt channel I and melt channel II.
Further, the plenum chamber is arranged in dynamic model cavity plate and cover half cavity plate, on the dynamic model cavity plate side wall
It is provided with air admission hole, the air inlet circuit being connected to air admission hole is provided in the dynamic model cavity plate, air inlet circuit bottom is set
It is equipped with the venthole being connected to plenum chamber.
Further, the melt channelWith melt channelFrom feed inlet to discharge port, its cross section sectional area gradually becomes
It is small.
The beneficial effects of the present invention are：
A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold of the present invention in melt channel by being provided with point
Block is flowed, the discharge port in 2 melt channels is extended respectively into gonnecting rod body major part forming cavity and gonnecting rod body body of rod forming cavity connects into
Type portion and gonnecting rod body body of rod forming cavity connect forming part with gonnecting rod body microcephaly's forming cavity, control the width and thickness in double melt channels
Degree, makes molten metal while filling is to each position of gonnecting rod body gonnecting rod body cavity, reduces internal porosity 15% or so, refines internal group
Crystal grain is knitted, increases interior solid degree, improve connecting rod strength, hardness, wearability and casting qualification rate.
Description of the drawings：
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides the following figures to illustrate：
Fig. 1 is the structural schematic diagram of the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold of the present invention；
Fig. 2 be aluminum alloy connecting rod liquid forging mold of the present invention cavity flow passage structure in cover half cavity plate vertical view；
Fig. 3 is the partial enlarged view of the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold of the present invention；
Fig. 4 be aluminum alloy connecting rod liquid forging mold of the present invention cavity flow passage structure in cover half cavity plate partial enlargement
Figure.
Description of the drawings：1- cover half cavity plates；2- dynamic model cavity plates；3- pressure chambers；4- gonnecting rod body cavities；5- melts channel；6-
Melt channel；7- gonnecting rod body major part forming cavities；8- gonnecting rod body body of rod forming cavities；9- gonnecting rod body microcephaly's forming cavities；10- pressure heads；
11- ejector beams；12- cooling holes；13- air admission holes；14- air inlet circuits；15- ventholes；16- plenum chambers；17- choker bars；18- is convex
Module；19- cavities proximal end；20- cavities distal end：21- cavities gap；22- discharge ports；23- branching blocks；24- discharge ports。
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
Fig. 1-4 is the structural schematic diagram of the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold of the present invention；This
A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold is invented, is closed by cover half cavity plate 1 and dynamic model cavity plate 2
It encloses, is pressure chamber 2 at the center of cover half cavity plate 1, no less than 2 gonnecting rod body cavities 4, institute are evenly equipped with around the pressure chamber 2
It states pressure chamber 2 and is communicated with the cross gate for leading to each gonnecting rod body cavity 4 by radial independently formation, be provided in the cross gate
Cross gate is separated into melt channel by branching block 23, the branching block 235 and melt channel6, the melt channel5 and molten
Liquid channel6 discharge port extend respectively to gonnecting rod body body of rod forming cavity 8 and gonnecting rod body microcephaly forming cavity 9 connect forming part and
Gonnecting rod body major part forming cavity 7 and gonnecting rod body body of rod forming cavity 8 connect forming part.
The present embodiment is extended respectively to the discharge port in 2 melt channels by being provided with branching block 23 in melt channel
Gonnecting rod body major part forming cavity 7 and gonnecting rod body body of rod forming cavity 8 connect forming part and gonnecting rod body body of rod forming cavity 8 and gonnecting rod body is small
Head forming cavity 9 connects forming part, controls the width and thickness in double melt channels, makes molten metal while filling to gonnecting rod body connecting rod
Each position of build chamber, reduces internal porosity 15% or so, and refinement interior tissue crystal grain, increase interior solid degree, raising connecting rod are strong
Degree, hardness, wearability and casting qualification rate.
The present embodiment it is specifically used：In the state that metal pattern cover half cavity plate and dynamic model cavity plate are opened, it will melt
The aluminium alloy solution changed to certain temperature directly pours into pressure chamber, and hydraulic press, which is taken blame for others, drives dynamic model part downlink to be closed metal pattern,
Penetrator ram on the cylinder of hydraulic press bottom, band dynamic head uplink in pressure chamber enable aluminum alloy to solution and are full of link type along double melt channels
Chamber and under stress feeding and crystallization and freezing, into pressurize is crossed after a certain period of time, hydraulic press, which is taken blame for others, to be driven dynamic model part uplink and opens
Metal pattern is opened, when formation reaches certain distance, resistance is passed to gold cooling in cavity by liftout system by ejector beam
Belong to the metal in material head, metal flow passage and the slag trap in body, including connecting rod blank, pressure chamber, be allowed to dynamic model cavity structure,
After taking out metallic object, clear stream cavity and spray paint complete a working cycles.
The present embodiment keeps metal molten by the width and thickness in the double melt channels of flow design of modeling Simulation molten metal
Liquid is filled simultaneously to each position of gonnecting rod body gonnecting rod body cavity, respectively enters melt channel I5 from pressure chamber in molten metal and melt is logical
In road II6, a part of molten metal is in melt channel I5 from discharge port22 exit into cavity proximal end 19, along cavity proximal end
19 3 directions in forward and backward and top flowing, 3 tunnels of molten metal point trickling at this time, the 1st curb cavity proximal end 19 is toward gonnecting rod body sheet
Body formed chamber flowing, the 2nd curb cavity proximal end 19 are flowed toward gonnecting rod body microcephaly forming cavity 9, and excess convexity is got in the 3rd curb cavity proximal end 19
Module 18, into cavity gap 21, the flowing in cavity distal end 20, another part molten metal is in melt channel II6 from discharging
Mouthful24 exit into cavity proximal end 19, along the direction flowing of forward and backward and top 3 of cavity proximal end 19, this part metals melt
Also other 3 tunnel is divided to trickle, the 4th curb cavity proximal end 19 is flowed toward gonnecting rod body ontology forming cavity, and the 5th curb cavity proximal end 19 is toward even
Body of rod major part forming cavity 7 flows, and convex module 18 is crossed in the 6th curb cavity proximal end 19, into cavity gap 21, toward cavity distal end 20
Interior flowing, the present embodiment are conducive to controls connecting rod body microcephaly, gonnecting rod body ontology and gonnecting rod body major part using branching block while can
Feed liquor, and under stress feeding and make cavity proximal end 19, cavity gap 21 and cavity distal end 20 crystallization and freezing position do not exist
The junction of gonnecting rod body microcephaly and gonnecting rod body ontology and gonnecting rod body major part and gonnecting rod body ontology, wherein the 1st road and the 4th road metal
Melt will be along cavity proximal end 19, toward converging in the middle part of gonnecting rod body ontology forming cavity, the 3rd road and the 6th road molten metal will extend over convex
Module 18, will be small along cavity proximal end 19, the full gonnecting rod body of filling into cavity gap 21 and the 20, the 2nd road molten metal of cavity distal end
Head forming cavity 9 and the 3rd tunnel enter cavity distally 20 molten metal converge, the 5th road molten metal will along cavity proximal end 19 and
The molten metal that gonnecting rod body major part forming cavity 7 enters cavity distal end 20 with the 6th tunnel converges, and so that 6 road molten metals is converged crystallization solidifying
Gu position is on the gonnecting rod body body of rod, and the point at both ends forms hyperboloid structure and not in the same plane avoids
Gonnecting rod body microcephaly and gonnecting rod body ontology junction and the junction of gonnecting rod body major part and gonnecting rod body ontology generate stress concentration, carry
High connecting rod strength, reduces gonnecting rod body major part, gonnecting rod body microcephaly locates internal porosity 15% or so, refinement interior tissue crystal grain, increase
Interior solid degree.
Further, the preferred melt channel5 discharge port9 side of gonnecting rod body microcephaly forming cavity is arranged close at 22
There is choker bar 17, end set of the choker bar 17 close to 3 one end of pressure chamber is arcuate structure, its described height is set as melt
The 1/4~1/3 of channel I5 height, using branching block be conducive to control the 2nd tunnel, the 3rd road molten metal enters will be along cavity proximal end
The speed of 19 fillings completely gonnecting rod body microcephaly forming cavity 9, makes gonnecting rod body major part, gonnecting rod body microcephaly and the gonnecting rod body body of rod simultaneously in pressure
Lower feeding and crystallization and freezing improve connecting rod strength.
Further, it is provided with the uplink in pressure chamber 3 in the preferred pressure chamber 3 and melt is made to be full of gonnecting rod body cavity
Pressure head 10, the structure are conducive to control molten metal uplink while entering melt channel I and melt channelIn, 10 top of pressure head
It is adapted to pressure chamber bottom shape and is disposed as arcuate structure.
Further, it is respectively provided with the plenum chamber being arranged in a one-to-one correspondence with it at the top of the melt channel I5 and melt channel II6
16, the preferred plenum chamber 16 is arranged in dynamic model cavity plate 2 and cover half cavity plate 1, is set on 2 side wall of dynamic model cavity plate
It is equipped with air admission hole 13, the air inlet circuit 14 being connected to air admission hole, 14 bottom of air inlet circuit are provided in the dynamic model cavity plate
Portion is provided with the venthole 15 being connected to plenum chamber 16, which facilitates air inlet, makes plenum chamber 16 close to product, is conducive to make aluminium
Alloy solution is full of connecting rod cavity and under stress feeding and crystallization and freezing.
Further, the preferred melt channel5 and melt channel6 from feed inlet to discharge port its cross section sectional area
It tapers into, which is conducive to enable aluminum alloy to solution full of connecting rod cavity and feeding simultaneously crystallization and freezing under stress.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
1. a kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold is closed by cover half cavity plate and dynamic model cavity plate
It encloses, is pressure chamber at the center of cover half cavity plate, it is characterised in that：No less than 2 gonnecting rod bodies are evenly equipped with around the pressure chamber
Cavity, the pressure chamber are communicated with by the radial cross gate independently formed towards each gonnecting rod body cavity, in the cross gate
It is provided with branching block, cross gate is separated into melt channel by the branching blockWith melt channel, the melt channelWith it is molten
Liquid channelDischarge port extend respectively to gonnecting rod body body of rod forming cavity and connect forming part and company with gonnecting rod body microcephaly's forming cavity
Body of rod major part forming cavity connects forming part with gonnecting rod body body of rod forming cavity.
2. the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold according to claim 1, it is characterised in that：
The melt channelDischarge portPlace, which is arranged close to gonnecting rod body microcephaly's forming cavity side, choker bar, and the choker bar is close to pressure
The end set of room one end is arcuate structure, its described height is set as the 1/4~1/3 of melt channel I height.
3. the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold according to claim 1, it is characterised in that：
Uplink and the pressure head for making melt be full of gonnecting rod body cavity in pressure chamber are provided in the pressure chamber.
4. the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold according to claim 1, it is characterised in that：
It is respectively provided with the plenum chamber being arranged in a one-to-one correspondence with it at the top of the melt channel I and melt channel II.
5. the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold according to claim 4, it is characterised in that：
The plenum chamber is arranged in dynamic model cavity plate and cover half cavity plate, is provided with air admission hole on the dynamic model cavity plate side wall, institute
The air inlet circuit for being provided in dynamic model cavity plate and being connected to air admission hole is stated, air inlet circuit bottom is provided with to be connected to plenum chamber
Venthole.
6. the cavity flow passage structure of aluminum alloy connecting rod liquid forging mold according to claim 1, it is characterised in that：
The melt channelWith melt channelFrom feed inlet to discharge port, its cross section sectional area tapers into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724962.XA CN108788090A (en) | 2018-07-04 | 2018-07-04 | A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724962.XA CN108788090A (en) | 2018-07-04 | 2018-07-04 | A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold |
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|---|---|
| CN108788090A true CN108788090A (en) | 2018-11-13 |
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|---|---|---|---|
| CN201810724962.XA Pending CN108788090A (en) | 2018-07-04 | 2018-07-04 | A kind of cavity flow passage structure of aluminum alloy connecting rod liquid forging mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113600781A (en) * | 2021-06-30 | 2021-11-05 | 荣耀终端有限公司 | Die-casting die, die-casting forming method of terminal structural part and terminal |
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Application publication date: 20181113 |