CN106378433A - Method for producing aluminum alloy air bag supporting arm through horizontal extrusion casting machine - Google Patents
Method for producing aluminum alloy air bag supporting arm through horizontal extrusion casting machine Download PDFInfo
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- CN106378433A CN106378433A CN201611002360.0A CN201611002360A CN106378433A CN 106378433 A CN106378433 A CN 106378433A CN 201611002360 A CN201611002360 A CN 201611002360A CN 106378433 A CN106378433 A CN 106378433A
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
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- Mechanical Engineering (AREA)
- Forging (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a method for producing an aluminum alloy air bag supporting arm through a horizontal extrusion casting machine. The method for producing the aluminum alloy air bag supporting arm through the horizontal extrusion casting machine comprises the steps of (1) conducting mold casting and overflow design, (2) designing a mold cooling channel and (3) arranging sliding block core-pulling devices. The method for producing the aluminum alloy air bag supporting arm through the horizontal extrusion casting machine has the effects that the performance reaches the standard, the cost is low and the utilization rate is high.
Description
Technical field
The invention belongs to aluminium alloy car bladder support arm technical field of material formation, particularly to one kind horizontal type extruding
The method that casting machine produces aluminium alloy bladder support arm.
Background technology
Bladder support arm is the core part of automobile wheel edge drive axle, and it is with boxlike component of automobile, amortisseur air bag module, driving
System is connected, and has bearing automobile rear load, supports drive axle and plays cushioning effect for shock-absorption air bag.In motoring condition
Under, it subjects changeable impact damping load.The traveling that the security reliability of bladder support arm directly affects car load is reliable
Property and on-board crew life security, its auto parts and components produce industry in there is very important status.Running car
During bladder support arm can be affected by various random loads；Additionally, the structural parameters of bladder support arm, material properties,
The factors such as production technology there is also uncertainty, and the presence of these random factors makes the reliability requirement of bladder support arm very
High.Belong to the security base part of automobile, its safe class is I, bladder support arm dominant failure mode is fatigue rupture.Therefore right
The mechanical property requirements of automotive airbag support arm are very high.Orthodox car bladder support arm is mainly formed by spheroidal graphite cast-iron casting.
For automobile lightweight, abroad start to research and develop high-performance aluminium alloy bladder support arm from 10 years front left and rights, by existing casting
Ironware, steel-casting to the upgrading of aluminum alloy forged part, to realize the lightweight of bladder support arm product, high performance and low
Cost.Existing automobile production aluminium alloy bladder support arm be produced as forging technology, be machined in a large number.Air bag
Support arm is to be most difficult to one of forging of production in automobile forging, and its forging design level represents the highest design water of automobile forging
Flat.Bladder support arm belongs to irregular forging in forging classification, and forging thickness is greatly it is difficult to ensure the material in the middle of forging
Performance, forging technology is complicated, and its forging technology is had high demands.At present, forging bladder support arm produces the subject matter facing is：
Forging stock utilization is low, and forging material property is inconsistent, and machining time is long, machining expense height etc..The extruding of the present invention
Foundry Production high-performance aluminium alloy bladder support arm, its body sampling performance tensile strength>300Mpa, yield strength>210Mpa,
Elongation after fracture>8%, this is that conventional cast, low pressure casting, counter-pressure casting technique are beyond one's reach performance.
Because China's foundry enterprise fails to grasp the Foundry Production technology of aluminium alloy bladder support arm completely, therefore remove import
Automobile and partly joint middle and high end car adopt outside reflectal bladder support arm, and domestic automobile is still using spheroidal graphite cast-iron air bag
Support arm.In order to improve China's auto parts product innovation capability and independent brand automobile competitiveness, need badly and realize high-performance aluminum
The industrialization of alloy automobile bladder support arm and sizable application.Conventional cast, low pressure casting and part is replaced to forge with extrusion casint
Make, to reach the precision improving blank, reduce allowance, reduce raw materials consumption, the purpose of reduces cost is that it necessarily becomes
Gesture.The advanced forming technology technology that extrusion casint combines as casting forging, will substitute part forging technology, produce those due to forging
Make forming difficulty, and be unable to reach this kind of part of such as bladder support arm of performance requirement with general casting.
Content of the invention
In view of the above problems, it is an object of the invention to provide a kind of performance is up to standard, low cost and utilization rate high with sleeping
The method that formula extrusion casting machine produces aluminium alloy bladder support arm.
For achieving the above object, a kind of of present invention offer produces aluminium alloy bladder support arm with Horizontal type extrusion casting machine
Method, wherein, concrete application is as follows：
(1) die casting and overflow
Using flow regime and the pressure distribution of liquor stream, realize product smooth filling and consecutive solidification under stress；Inside pour
Mouthful design packet contains the position of ingate, shape, size content.Ingate opens up and should ensure that the internal few generation of product or do not produce gas
Hole, shrinkage cavity defect；Make product outward appearance no cold shut and smooth surface complete；The selection of the position of ingate is in design running gate system
The problem first having to consider；The planform of squeeze casting, wall thickness, contraction distortion, conjunction will be considered when designing ingate position
The factor of golden species, extruder appts and squeeze casting serviceability aspect, flowing during analysis metal liquor stream packed type chamber
State, the dead angle being likely to occur in stowing operation and wrap up in gas position；So that reasonable Arrangement Exhausting System；
(2) mold cooling water road design
In Design of Dies, the wall thickness according to product and volume determine the following design parameter of cooling water channel：The position in cooling duct
Put and size, the length in duct, the species in duct, the configuration in duct and be connected and the flow rate of cooling water and heat transfer property
Matter；On the one hand in the metal injection mold cavity of melting, discharge substantial amounts of heat within the extremely short time, promote mould
Temperature improve；On the other hand, mould passes through conduction, and the method for radiation and convection current is including us to the spray of mould and water
Enfleurage receiving portions heat, makes mold temperature decline, through after a while, reaches a balance in a temperature in the presence of the two
Point, makes mould be in a certain temperature range, the temperature of this equilibrium point is extremely important to steady production；Mold temperature also shadow
Ring product dimensional accuracy, reconcile mould temperature, the fluctuation of product molding shrinkage can be reduced, improve product dimensional accuracy；Impact shape
Precision, the mould temperature difference is big, and product shrinks uneven, buckling deformation；Impact surface roughness, mould temperature is low, and article surface roughness improves,
It is also easy to produce cold shut, misrun defect；Casting quality and productivity ratio depend greatly on mold hot control ability；Cooling water
Road makes forming part surface cool down uniformly, and the mould temperature difference everywhere is little；Maintain cost-effective cool time, just reply system
Using cold by force at part heavy wall；Rapidly increase because the cool time needed for product increases with its wall thickness；Cooling water hole is away from die cavity
Distance is 25mm, and too near then inhomogeneous cooling is even, and too remote then cooling effectiveness is low；Cooling water hole a diameter of Φ 12mm；Cooling water channel from
Mo Wengao field flow orientation mould temperature low area；For preventing cooling water channel leak, using resistant to elevated temperatures silicone rubber as potted component；?
Individually it is provided with cooling system, to adjust the problem on deformation controlling product on dynamic, cover half；The bind mode of cooling water channel
Trunk water channel is flowed into from entrance using parallel cooling medium, is divided into some branches, then import water outlet trunk water channel and discharge；
And make the cross-sectional area of import and export trunk water channel Φ D should be greater than the cross-sectional area sum of each branch road Φ d；The methods for cooling of die cavity is adopted
With the cooling of line SAPMAC method formula；
(3) slipper block loose core device
Side with product arm and casing connection end are designed two and are drawn hopper, it is to avoid produce loose, shrinkage cavity defect, enable again
Lightweight target.In Design of Dies above bladder support arm and side increase by two slipper block loose core devices；
Above-mentioned design arranges the foundry goods that rational technological parameter can obtain more high-quality, can play extrusion casting machine maximum
Productivity ratio；The principal element that impact aluminium liquid filling shapes：Pressure, speed, time and temperature；Adjusting process parameter can cause accordingly
Other factors change, accordingly, it would be desirable to the rational each technological parameter of setting；The correct technological parameter that sets is to obtain qualified extruding casting
The essential condition of forging piece；
A, pressure setting
How pressure is set, it will the mechanical performance of impact foundry goods and outward appearance, What is more will shorten the life-span of mould；?
With the increase than pressure in certain limit, the intensity of product increases, and this is due to solidifying at a higher pressure, can improve system
The compactness of part interior tissue, makes the micro-pore in product or bubble be compressed, and makes the reason that porosity reduces；Carry high specific pressure
The stowage capacity of aluminium alloy can also be improved, easily obtain clear-cut product；But the high aluminium alloy that can aggravate is in mold filling than pressing through
When impact to die cavity, affect die life；
B, speed setting
Correctly select filling velocity particularly significant to design mould and acquisition morderate part, filling velocity is too small to make product
Profile unclear, or even be unable to molding, filling velocity selected conference to cause product sticking to mould and internal porosity；Make under mechanical property
Fall, the principal element of impact filling velocity has the pressing speed of press, and compacting is than the ingate sectional area of pressure and mould；In press
After determination, the gland of mould is the size determination according to product, is typically difficult to adjust, so, filling velocity mainly passes through
Adjust injection speed and ingate sectional area to realize；
C, set of time
The length of filling time depends on the size of product, complexity, the area at ingate and filling velocity；Fill type
The product that time is short, speed high available surface quality is good, but the interior solid of product is poor, and pore increases；Filling type
After speed determines, mainly select or adjust ingate sectional area to determine filling time by correct；
D, temperature setting
Mould should be preheating to uniform temperature before producing by extrusion casint, and mould to be kept is in a constant temperature in process of production
Degree scope, this has very big benefit to the mouldability improving product and raising die life, and the preheating of mould generally adopts die heater
Heating, preheating temperature is more than 100 DEG C, and mold work temperature control is between 150～280 DEG C；Pouring temperature to the molding of product,
Dimensional accuracy, surface roughness and mechanical property and die life all have a direct impact；Select the pouring temperature master of alloy
To be determined according to product wall thickness and complexity；Secondly also should combine compacting than pressing, filling velocity and mold temperature multiple because
Element considers.
In some embodiments, running channel opens up position in the middle part of product arm body, and product thickness is 10mm-20mm, need not
Setting cross gate.Ingate sectional dimension is 170mm × 35mm, and ingate and sprue length workpiece are 25 to expecting handle length
35mm；The material a diameter of 160mm of cake, material handle thickness is 30 40mm.
In some embodiments, slide block sectional dimension in top is 210mm × 55mm, and it is φ 160mm that core pulling uses oil cylinder；
Side slide block sectional dimension is 145mm × 180mm, and it is φ 150mm that core pulling uses oil cylinder；Slide block adopts 8407 heat-resisting die steel
Material, need to be through overall vacuum quenching plus surfaces nitrided process.
A kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine, specific as follows：Mould is correctly pacified
It is contained in the template of press, connect each cooling water inlet pipe and water outlet pipe by mold cooling water passage figure；Set technological parameter；Connect die heater pair
Mould is preheated；Mould is preheating to after uniform temperature, press is started working, starts first three part and be used as pre- hot-die further
Tool, makes mold temperature tend to balance, and after mold temperature reaches requirement, carries out normalization production by setting technological parameter.
The invention has the beneficial effects as follows having, performance is up to standard, low cost and utilization rate are high, controlling each process procedure can be real
The effect of existing automated production.
Brief description
Fig. 1 is the structural representation of inventive die cooling water channel；
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Specific embodiment
Structure Figure is described in further detail to invention below.
A kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine, wherein, concrete application is as follows：
(1) die casting and overflow
Using flow regime and the pressure distribution of liquor stream, realize product smooth filling and consecutive solidification under stress；Inside pour
Mouthful design packet contains the position of ingate, shape, size content.Ingate opens up and should ensure that the internal few generation of product or do not produce gas
Hole, shrinkage cavity defect；Make product outward appearance no cold shut and smooth surface complete；The selection of the position of ingate is in design running gate system
The problem first having to consider；The planform of squeeze casting, wall thickness, contraction distortion, conjunction will be considered when designing ingate position
The factor of golden species, extruder appts and squeeze casting serviceability aspect, flowing during analysis metal liquor stream packed type chamber
State, the dead angle being likely to occur in stowing operation and wrap up in gas position；So that reasonable Arrangement Exhausting System；
(2) mold cooling water road design
In Design of Dies, the wall thickness according to product and volume determine the following design parameter of cooling water channel：The position in cooling duct
Put and size, the length in duct, the species in duct, the configuration in duct and be connected and the flow rate of cooling water and heat transfer property
Matter；On the one hand in the metal injection mold cavity of melting, discharge substantial amounts of heat within the extremely short time, promote mould
Temperature improve；On the other hand, mould passes through conduction, and the method for radiation and convection current is including us to the spray of mould and water
Enfleurage receiving portions heat, makes mold temperature decline, through after a while, reaches a balance in a temperature in the presence of the two
Point, makes mould be in a certain temperature range, the temperature of this equilibrium point is extremely important to steady production；Mold temperature also shadow
Ring product dimensional accuracy, reconcile mould temperature, the fluctuation of product molding shrinkage can be reduced, improve product dimensional accuracy；Impact shape
Precision, the mould temperature difference is big, and product shrinks uneven, buckling deformation；Impact surface roughness, mould temperature is low, and article surface roughness improves,
It is also easy to produce cold shut, misrun defect；Casting quality and productivity ratio depend greatly on mold hot control ability；Cooling water
Road makes forming part surface cool down uniformly, and the mould temperature difference everywhere is little；Maintain cost-effective cool time, just reply system
Using cold by force at part heavy wall；Rapidly increase because the cool time needed for product increases with its wall thickness；Cooling water hole is away from die cavity
Distance is 25mm, and too near then inhomogeneous cooling is even, and too remote then cooling effectiveness is low；Cooling water hole a diameter of Φ 12mm；Cooling water channel from
Mo Wengao field flow orientation mould temperature low area；For preventing cooling water channel leak, using resistant to elevated temperatures silicone rubber as potted component；?
Individually it is provided with cooling system, to adjust the problem on deformation controlling product on dynamic, cover half；The bind mode of cooling water channel
Trunk water channel is flowed into from entrance using parallel cooling medium, is divided into some branches, then import water outlet trunk water channel and discharge；
And make the cross-sectional area of import and export trunk water channel Φ D should be greater than the cross-sectional area sum of each branch road Φ d；The methods for cooling of die cavity is adopted
With the cooling of line SAPMAC method formula；As shown in figure 1, loft shape cooling water channel 1 and the linear cooling water channel of slide block 2.As shown in Fig. 2 cover half
Linear cooling water channel.
(3) slipper block loose core device
Side with product arm and casing connection end are designed two and are drawn hopper, it is to avoid produce loose, shrinkage cavity defect, enable again
Lightweight target.In Design of Dies above bladder support arm and side increase by two slipper block loose core devices；
Above-mentioned design arranges the foundry goods that rational technological parameter can obtain more high-quality, can play extrusion casting machine maximum
Productivity ratio；The principal element that impact aluminium liquid filling shapes：Pressure, speed, time and temperature；Adjusting process parameter can cause accordingly
Other factors change, accordingly, it would be desirable to the rational each technological parameter of setting；The correct technological parameter that sets is to obtain qualified extruding casting
The essential condition of forging piece；
A, pressure setting
How pressure is set, it will the mechanical performance of impact foundry goods and outward appearance, What is more will shorten the life-span of mould；?
With the increase than pressure in certain limit, the intensity of product increases, and this is due to solidifying at a higher pressure, can improve system
The compactness of part interior tissue, makes the micro-pore in product or bubble be compressed, and makes the reason that porosity reduces；Carry high specific pressure
The stowage capacity of aluminium alloy can also be improved, easily obtain clear-cut product；But the high aluminium alloy that can aggravate is in mold filling than pressing through
When impact to die cavity, affect die life；
B, speed setting
Correctly select filling velocity particularly significant to design mould and acquisition morderate part, filling velocity is too small to make product
Profile unclear, or even be unable to molding, filling velocity selected conference to cause product sticking to mould and internal porosity；Make under mechanical property
Fall, the principal element of impact filling velocity has the pressing speed of press, and compacting is than the ingate sectional area of pressure and mould；In press
After determination, the gland of mould is the size determination according to product, is typically difficult to adjust, so, filling velocity mainly passes through
Adjust injection speed and ingate sectional area to realize；
C, set of time
The length of filling time depends on the size of product, complexity, the area at ingate and filling velocity；Fill type
The product that time is short, speed high available surface quality is good, but the interior solid of product is poor, and pore increases；Filling type
After speed determines, mainly select or adjust ingate sectional area to determine filling time by correct；
D, temperature setting
Mould should be preheating to uniform temperature before producing by extrusion casint, and mould to be kept is in a constant temperature in process of production
Degree scope, this has very big benefit to the mouldability improving product and raising die life, and the preheating of mould generally adopts die heater
Heating, preheating temperature is more than 100 DEG C, and mold work temperature control is between 150～280 DEG C；Pouring temperature to the molding of product,
Dimensional accuracy, surface roughness and mechanical property and die life all have a direct impact；Select the pouring temperature master of alloy
To be determined according to product wall thickness and complexity；Secondly also should combine compacting than pressing, filling velocity and mold temperature multiple because
Element considers.
Running channel opens up position in the middle part of product arm body, and product thickness is 10mm-20mm, need not arrange cross gate.Ingate
Sectional dimension is 170mm × 35mm, and ingate and sprue length workpiece are 25 35mm to expecting handle length；Material cake is a diameter of
160mm, material handle thickness is 30 40mm.Top slide block sectional dimension is 210mm × 55mm, and it is φ 160mm that core pulling uses oil cylinder；
Side slide block sectional dimension is 145mm × 180mm, and it is φ 150mm that core pulling uses oil cylinder；Slide block adopts 8407 heat-resisting die steel
Material, need to be through overall vacuum quenching plus surfaces nitrided process.
A kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine, specific as follows：Mould is correctly pacified
It is contained in the template of press, connect each cooling water inlet pipe and water outlet pipe by mold cooling water passage 1 figure；Set technological parameter；Connect die heater
Mould is preheated；Mould is preheating to after uniform temperature, press is started working, starts first three part and be used as pre- hot-die further
Tool, makes mold temperature tend to balance, and after mold temperature reaches requirement, carries out normalization production by setting technological parameter.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, some deformation can also be made and improve, these broadly fall into the protection domain of invention.
Claims (5)
1. a kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine, wherein, concrete application is as follows：
(1) die casting and overflow
Using flow regime and the pressure distribution of liquor stream, realize product smooth filling and consecutive solidification under stress；Ingate sets
Count the position comprising ingate, shape, size content.Ingate open up should ensure that inside product few produce or do not produce pore,
Shrinkage cavity defect；Make product outward appearance no cold shut and smooth surface complete；The selection of the position of ingate is first in design running gate system
Problem first to be considered；The planform of squeeze casting, wall thickness, contraction distortion, alloy will be considered when designing ingate position
The factor of species, extruder appts and squeeze casting serviceability aspect, flowing shape during analysis metal liquor stream packed type chamber
State, the dead angle being likely to occur in stowing operation and wrap up in gas position；So that reasonable Arrangement Exhausting System；
(2) mold cooling water road design
In Design of Dies, the wall thickness according to product and volume determine the following design parameter of cooling water channel：Cooling duct position with
Size, the length in duct, the species in duct, the configuration in duct and be connected and the flow rate of cooling water and heat transfer property matter；One
Aspect, in the metal injection mold cavity of melting, discharges substantial amounts of heat within the extremely short time, promotes the temperature of mould
Degree improves；On the other hand, mould passes through conduction, and the method for radiation and convection current is inhaled to the spray of mould and water-cooled including us
Receiving portions heat, makes mold temperature decline, through after a while, reaches an equilibrium point in a temperature in the presence of the two,
Mould is made to be in a certain temperature range, the temperature of this equilibrium point is extremely important to steady production；Mold temperature has an effect on
Product dimensional accuracy, reconciles mould temperature, can reduce the fluctuation of product molding shrinkage, improves product dimensional accuracy；Impact shape essence
Degree, the mould temperature difference is big, and product shrinks uneven, buckling deformation；Impact surface roughness, mould temperature is low, and article surface roughness improves, easily
Produce cold shut, misrun defect；Casting quality and productivity ratio depend greatly on mold hot control ability；Cooling water channel
Forming part surface is made to cool down uniformly, the mould temperature difference everywhere is little；Maintain cost-effective cool time, just reply product
Using cold by force at heavy wall；Rapidly increase because the cool time needed for product increases with its wall thickness；Cooling water hole away from die cavity away from
From for 25mm, too near then inhomogeneous cooling is even, and too remote then cooling effectiveness is low；Cooling water hole a diameter of Φ 12mm；Cooling water channel is from mould
The high field flow orientation mould temperature low area of temperature；For preventing cooling water channel leak, using resistant to elevated temperatures silicone rubber as potted component；?
Individually it is provided with cooling system, to adjust the problem on deformation controlling product on dynamic, cover half；The bind mode of cooling water channel
Trunk water channel is flowed into from entrance using parallel cooling medium, is divided into some branches, then import water outlet trunk water channel and discharge；
And make the cross-sectional area of import and export trunk water channel Φ D should be greater than the cross-sectional area sum of each branch road Φ d；The methods for cooling of die cavity is adopted
With the cooling of line SAPMAC method formula；
(3) slipper block loose core device
Side with product arm and casing connection end are designed two and are drawn hopper, it is to avoid produce loose, shrinkage cavity defect, enable light weight again
Change target.In Design of Dies above bladder support arm and side increase by two slipper block loose core devices；
Above-mentioned design arranges the foundry goods that rational technological parameter can obtain more high-quality, can play extrusion casting machine largest production
Rate；The principal element that impact aluminium liquid filling shapes：Pressure, speed, time and temperature；Adjusting process parameter can cause corresponding its
He changes factor, accordingly, it would be desirable to setting reasonably each technological parameter；The correct technological parameter that sets is to obtain qualified extrusion casint part
Essential condition；
A, pressure setting
How pressure is set, it will the mechanical performance of impact foundry goods and outward appearance, What is more will shorten the life-span of mould；Certain
In the range of with ratio pressure increase, the intensity of product increases, and this is due to solidifying at a higher pressure, can improve in product
The compactness of portion's tissue, makes the micro-pore in product or bubble be compressed, and makes the reason that porosity reduces；Carry high specific pressure also may be used
To improve the stowage capacity of aluminium alloy, easily obtain clear-cut product；But the high aluminium alloy that can aggravate is in mold filling pair than pressing through
The impact of die cavity, affects die life；
B, speed setting
Correctly select filling velocity particularly significant to design mould and acquisition morderate part, the too small wheel that can make product of filling velocity
Wide unclear, or even it is unable to molding, filling velocity selected conference to cause product sticking to mould and internal porosity；Make mechanical properties decrease,
The principal element of impact filling velocity has the pressing speed of press, and compacting is than the ingate sectional area of pressure and mould；True in press
After fixed, the gland of mould is the size determination according to product, is typically difficult to adjust, so, filling velocity mainly passes through to adjust
Whole injection speed and ingate sectional area are realizing；
C, set of time
The length of filling time depends on the size of product, complexity, the area at ingate and filling velocity；Filling time
Product short, that speed high available surface quality is good, but the interior solid of product is poor, and pore increases；In filling velocity
After determination, mainly select or adjust ingate sectional area to determine filling time by correct；
D, temperature setting
Mould should be preheating to uniform temperature before producing by extrusion casint, and mould to be kept is in uniform temperature model in process of production
Enclose, this has very big benefit to the mouldability improving product and raising die life, the preheating of mould generally adopts die heater to heat,
Preheating temperature is more than 100 DEG C, and mold work temperature control is between 150～280 DEG C；Pouring temperature is to the molding of product, size
Precision, surface roughness and mechanical property and die life all have a direct impact；Select the main root of pouring temperature of alloy
To determine according to product wall thickness and complexity；Secondly also should be more comprehensive than pressure, filling velocity and mold temperature many factors in conjunction with compacting
Close and consider.
2. a kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine according to claim 1, it is special
Levy and be, 700 720 DEG C of the aluminum alloy melt pouring temperature of described bladder support arm；Mold temperature operating temperature 160 240
℃；Pressurize and mould remaining time 20 45 seconds；Filling velocity first switching point (at 20mm), the second switching point (at 143mm), the 3rd
The setting of switching point (at 345mm) speed is the 200mm/ second, the 4th switching point (at 355mm), the 5th switching point (at 455mm) the
Six switching points (at 590mm) speed is the 80mm/ second；Supercharging valve opening 60%；Casting pressure 80MPa；Mold temperature is less than 200 DEG C
All remove the limit.
3. a kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine according to claim 1, it is special
Levy and be, described running channel opens up position in the middle part of product arm body, product thickness is 10mm-20mm, need not arrange cross gate.Interior
Runner section a size of 170mm × 35mm, ingate and sprue length workpiece are 25 35mm to expecting handle length；Material cake diameter
For 160mm, material handle thickness is 30 40mm.
4. a kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine according to claim 2, it is special
Levy and be, described top slide block sectional dimension is 210mm × 55mm, it is φ 160mm that core pulling uses oil cylinder；Side slide block section
A size of 145mm × 180mm, it is φ 150mm that core pulling uses oil cylinder；Slide block adopts 8407 heat-resisting die Steel materials, need to be through entirety
Vacuum hardening adds surfaces nitrided process.
5. a kind of method producing aluminium alloy bladder support arm with Horizontal type extrusion casting machine according to claim 1,2 or 3,
It is characterized in that, specific as follows：Mould is properly attached in the template of press, by mold cooling water passage figure connect each cool down into
Outlet pipe；Set technological parameter；Connect die heater mould is preheated；Mould is preheating to after uniform temperature, press starts
Work, starts first three part and is used as further preheated mold, so that mold temperature is tended to balance, after mold temperature reaches requirement, press
Setting technological parameter carries out normalization production.
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| CN201611002360.0A CN106378433B (en) | 2016-11-07 | 2016-11-07 | A method of aluminium alloy bladder support arm is produced with Horizontal type extrusion casting machine |
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| CN201611002360.0A CN106378433B (en) | 2016-11-07 | 2016-11-07 | A method of aluminium alloy bladder support arm is produced with Horizontal type extrusion casting machine |
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| CN106378433A true CN106378433A (en) | 2017-02-08 |
| CN106378433B CN106378433B (en) | 2019-02-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872321A (en) * | 2021-02-23 | 2021-06-01 | 广州和德轻量化成型技术有限公司 | Plate spring seat die for horizontal extrusion casting machine production and preparation method thereof |
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| CN106001496A (en) * | 2015-11-26 | 2016-10-12 | 浙江亚路铸造有限公司 | Vehicle steering wheel skeleton mold and casting method |
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| CN2808361Y (en) * | 2005-07-29 | 2006-08-23 | 重庆建设摩托车股份有限公司 | Center casting die for horizontal die-casting machine |
| JP2011104600A (en) * | 2009-11-12 | 2011-06-02 | Suzuki Motor Corp | Method and device for manufacturing semi-solidified slurry |
| JP2013066920A (en) * | 2011-09-25 | 2013-04-18 | Nissan Motor Co Ltd | Method for manufacturing aluminum alloy casting material |
| CN106001496A (en) * | 2015-11-26 | 2016-10-12 | 浙江亚路铸造有限公司 | Vehicle steering wheel skeleton mold and casting method |
| CN205217978U (en) * | 2015-12-16 | 2016-05-11 | 江西意哥尔科技股份有限公司 | Horizontal die casting machine |
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| CN112872321A (en) * | 2021-02-23 | 2021-06-01 | 广州和德轻量化成型技术有限公司 | Plate spring seat die for horizontal extrusion casting machine production and preparation method thereof |
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| CN106378433B (en) | 2019-02-12 |
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