CN209181522U - A kind of multi- scenarios method material handling system - Google Patents
A kind of multi- scenarios method material handling system Download PDFInfo
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- CN209181522U CN209181522U CN201821969338.8U CN201821969338U CN209181522U CN 209181522 U CN209181522 U CN 209181522U CN 201821969338 U CN201821969338 U CN 201821969338U CN 209181522 U CN209181522 U CN 209181522U
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Abstract
The utility model discloses a kind of multi- scenarios method material handling system, including main machine frame, main machine frame is equipped with the furnace body of side opening structure, servo hydraulic oil cylinder is equipped with above furnace body, the oil pipe of servo hydraulic oil cylinder rings servo valve by large-flow high-frequency and is connected to Hydraulic servo system, servo hydraulic oil cylinder driving is located at the seaming chuck at the top of furnace body and applies downward constant force or wave force, and seaming chuck bottom end is connected with top electrode by insulating ceramics；Bottom of furnace body is equipped with push-down head corresponding with seaming chuck；Push-down head top is connected with lower electrode by insulating ceramics, and top electrode and lower electrode are connected respectively to the PLC technology high voltage power supply outside furnace body；The control of the electrical cabinet outside by furnace body is arranged in the intracorporal heater being additionally provided with as material heating of the furnace, heater.The utility model provides the new multi- scenarios method mode of action for material processing by setting heat, power, electric multi- scenarios method；And structure is simple, easy to use, quick, effectively reduces energy consumption.
Description
Technical field
Material processing the utility model relates to material handling device technical field, under specially a kind of multi- scenarios method effect
Device.
Background technique
Engineering material is played with characteristics such as its unique mechanics, calorifics, electricity, optics, acoustics, magnetics in every field
Important function.Material property and its microstructure are closely related, and microstructure is often by different material processing works
Skill regulates and controls.The material microstructure feature paid close attention at present mainly includes crystal structure, defect, surface and interface etc..Material
Expect that the change of microstructure is often closely related with substance diffusion process, temperature gradient, barometric gradient and electric-force gradient are exactly object
Matter spreads common driving force.Very long developing history handled material by power and heat, such as compression moulding,
The technologies such as pressure processing, annealing, pressure sintering, discharge plasma sintering, but by electric field directly to material microstructure into
The technology of row processing is also rarely found, and only electric-heating technology is more mature.Hot pressing processing, hot pressed sintering and discharge plasma sintering
The effect of heat and power is coupled together and handles material by technology, greatly improves material handling efficiency, while greatly mentioning
High material property, has pushed the rapid development of material industry.
But to material density, the pursuit of material mechanical performance is always the demand of engineering material industry.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide one kind to be capable of providing high voltage electric field, high-frequency alternating pressure
Material handling device under power and the effect of the multi- scenarios method of radiant heating coupling, and structure is simple, convenient, fast.Technology
Scheme is as follows:
A kind of multi- scenarios method material handling system, including main machine frame, main machine frame are equipped with the furnace body of button fly front structure,
Static pressure support cylinder is equipped with above furnace body, the oil pipe of static pressure support cylinder rings servo valve by large-flow high-frequency and is connected to servo oil
Source, the driving of static pressure support cylinder are located at the seaming chuck at the top of furnace body and apply downward high-frequency alternating pressure, and seaming chuck bottom end passes through
Insulating ceramics is connected with top electrode；Bottom of furnace body is equipped with push-down head corresponding with seaming chuck；Push-down head top passes through insulating ceramics
It is connected with lower electrode, top electrode and lower electrode are connected respectively to the PLC technology high voltage power supply outside furnace body, for mentioning for material
For high voltage electric field；The furnace is intracorporal to be additionally provided with as the heater of material radiant heating, and the electricity outside by furnace body is arranged in heater
Gas holder control.
It further, further include being connected as providing the vacuum pump group of vacuum environment in furnace body with furnace body.
Further, further include the high-pressure air source of offer protective atmosphere into furnace body being connect with furnace body, and be used for
Electric field controls, the control system of temperature control, pressure control and control climate.
It further, further include providing the water-cooling system of cooling protection to furnace body and Hydraulic servo system, and be used for electric field
The control system of control, temperature control and pressure control.
Further, it is all provided at the top and bottom of the furnace body there are two isolated high tension terminal, top electrode passes through
The high tension terminal at top is connected to PLC technology high voltage power supply, and lower electrode is connected to by the high tension terminal of bottom and can be compiled
Process control high voltage power supply.
Further, the electrical cabinet includes high-power three-phase alternating-current transformer, power controller and temperature controller, and
Thermoelectricity occasionally infrared temperature measurement apparatus；External three-phase alternating-current supply enters electrical cabinet and first connect with power controller, then by high-power
Three-phase ac transformer is converted to low-voltage dc power supply, and is transferred to the intracorporal heater of furnace；Thermoelectricity occasionally infrared temperature measurement apparatus
It is arranged near heater, the temperature signal measured is transmitted to temperature controller, temperature controller is sent out according to technological parameter to power controller
The number of delivering letters adjusts heating power, forms closed-loop control.
Further, displacement sensor is installed at the top of the static pressure support cylinder, bottom is equipped with load transducer.
Further, the push-down head passes through another static pressure support cylinder driving being arranged in below furnace body, to apply
Add upward high-frequency alternating pressure.
Further, the heater is the heating wire made of ferrum-chromium-aluminum, nickel chromium triangle, tungsten, W-Re, platinoiridita or molybdenum, or
The heating rod made of silicon molybdenum, silicon-carbon, Lanthanum Chromite, zirconium oxide, zirconium boride or graphite.
The beneficial effects of the utility model are: the utility model is by setting heat, power, electric multi- scenarios method, it is material processing
Provide the new multi- scenarios method mode of action；High voltage electric field can cause defect, activation polarization, tunneling effect etc. by exciting field
The diffusion rate of material is greatly improved, or even changes the flooding mechanism of material, realizes the sintering, deformation, modification, function tune of material
The purpose of control, is arranged high-frequency alternating pressure, can optimize material microstructure, can help the stomata that material internal is discharged, mention
High-compactness inhibits abnormal grain growth and too fast growth, the stomata that material internal is discharged can be helped, to promote material
Consistency promotes material mechanical performance；And structure is simple, easy to use, quick, effectively reduces energy consumption, can be used not only for material
Expect experimental study, it can also be used to the continuous production of material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the material handling device embodiment 1 under the effect of the utility model multi- scenarios method.
Fig. 2 is the structural schematic diagram of the material handling device embodiment 2 under the effect of the utility model multi- scenarios method
Fig. 3 is the structural schematic diagram of the material handling device embodiment 3 under the effect of the utility model multi- scenarios method
Fig. 4 is the structural schematic diagram of the material handling device embodiment 4 under the effect of the utility model multi- scenarios method
In figure: 1- main machine frame；2- PLC technology high voltage power supply；3- furnace body；4- high tension terminal；5- seaming chuck；6-
Top electrode；7- push-down head；Electrode under 8-；9- electrical cabinet；10- heater；11- Hydraulic servo system；12- large-flow high-frequency rings servo
Valve；13- static pressure support cylinder；14- displacement sensor；15- load transducer；16- vacuum pump group；17- high-pressure air source；18- water
Cooling system；19- control system.
Specific embodiment
The utility model is described in further details in the following with reference to the drawings and specific embodiments.More of the utility model
The coupling that coupling material processing system can provide high voltage electric field, high-frequency alternating pressure and radiant heating simultaneously for material processing is made
With.Heat, power, the effect of being electrically coupled can carry out under different atmosphere, can also independently run；Heat, power, the effect of being electrically coupled can
To significantly improve the various performances of material handling efficiency and processed material.Especially, introduce high voltage electric field directly to material into
Row processing, can be improved the driving force of material, be a kind of completely new material processing means.
The structure of multi- scenarios method material handling system is as follows: main machine frame 1 is equipped with the furnace body 3 of button fly front structure, furnace body 3
Top is equipped with static pressure support cylinder 13, and the oil pipe of static pressure support cylinder 13 rings servo valve 12 by large-flow high-frequency and is connected to servo
Oil sources 11, static pressure support cylinder 13 drive the seaming chuck 5 for being located at 3 top of furnace body to apply downward high-frequency alternating pressure, seaming chuck 5
Bottom end is connected with top electrode 6 by insulating ceramics；3 bottom of furnace body is equipped with push-down head 7 corresponding with seaming chuck 5；7 top of push-down head
It is connected with lower electrode 8 by insulating ceramics, top electrode 6 and lower electrode 8 are connected respectively to the PLC technology high-voltage electricity outside furnace body 3
Source 2, for providing high voltage electric field for material；The heater 10 being additionally provided with as material radiant heating in the furnace body 3, heater
10 are arranged in and are controlled by the electrical cabinet 9 outside furnace body 3.
High voltage electric field is the high voltage direct current or AC field for being applied on material > 100 V/cm, and high voltage electric field can pass through
Exciting field causes defect, activation polarization, tunneling effect etc. to greatly improve the diffusion rate of material, or even changes the diffusion machine of material
System.
For the load of high-frequency alternating pressure output to be adjustable within the scope of 0-500MPa, frequency is adjustable within the scope of 0-100Hz, height
Frequency alternating pressure can help the stomata that material internal is discharged, inhibit crystal grain abnormal growth and too fast growth, crystalline substance is substantially improved
The uniformity of particle size, significantly improves the microstructure of material, to promote the consistency of material, improves the mechanical property of material
Energy.
Wherein, the electrical cabinet 9 includes high-power three-phase alternating-current transformer, power controller and temperature controller and thermoelectricity
Occasionally infrared temperature measurement apparatus；External three-phase alternating-current supply enters electrical cabinet and first connect with power controller, then by high power three-phase
AC transformer is converted to low-voltage dc power supply, and is transferred to the intracorporal heater 10 of furnace；Thermoelectricity occasionally infrared temperature measurement apparatus is set
It sets near heater 10, the temperature signal measured is transmitted to temperature controller, temperature controller is sent out according to technological parameter to power controller
The number of delivering letters adjusts heating power.
Embodiment 1:
A kind of multi- scenarios method material handling system described in the present embodiment is by main machine frame, electric field system, high-temperature systems, pressure
The part such as system, vacuum system, atmosphere system, water-cooling system and control system forms.As shown in Figure 1, main machine frame 1 is pressure
System and high-temperature systems provide mounting platform, while it also has very high rigidity, it is ensured that do not occur in pressure-loaded
Apparent flexible deformation, and generation system does not resonate.Electric field system provides output by a PLC technology high voltage power supply 2,
It is connected by two high tension terminals 4 separated being arranged in connecting wire and button fly front structure furnace body 3.Inside furnace body 3, connect
Terminal passes through conducting wire and connect with electrode 8 lower at the top of the top electrode 6 of 5 bottom of seaming chuck and push-down head 7, passes through between pressure head and electrode
Insulating ceramics connection.Top electrode 6 is connected to PLC technology high voltage power supply 2 by the high tension terminal 4 at top, and lower electrode 8 is logical
The high tension terminal 4 for crossing bottom is connected to PLC technology high voltage power supply 2.High-temperature systems are become by furnace body 3, high-power three-phase alternating-current
The electrical cabinet 9 and heater 10 that depressor, power controller, thermocouple and temperature controller form form.In this example, it generates heat
Body is graphite.Pressure system is by Hydraulic servo system 11, and large-flow high-frequency rings servo valve 12 and static pressure support cylinder 13 forms, in oil cylinder
Top is equipped with high accuracy displacement sensor 14, is equipped with high-precision load transducer 15 in oil cylinder bottom, then upper with furnace body
Pressure head 5 is connected.Push-down head 7 is connected with the pedestal of main machine frame.Vacuum system is made of vacuum pump group 16, furnace body 3 and valve member etc..
Atmosphere system is made of high-pressure air source 17, furnace body 3 and valve member etc..Water-cooling system 18 provides cooling to furnace body 3 and Hydraulic servo system 11
Protection.Control system 19 is integrated with electric field controls, temperature control, pressure control and control climate using NI control platform as core
Function.
Fire door is first turned on when work, the powder sample being placed in mold is placed between push-down head, can also be direct
Block sample is placed between upper push-down head, then controlling cylinder movement by pressure system connects upper push-down head and sample closely
Touching, is then shut off fire door and opens vacuum system, and multi- scenarios method test can be started by reaching requirement to vacuum degree in furnace body.?
It can open after atmosphere system injects protection gas in furnace body after vacuum degree reaches requirement and start to test again.During test,
Material can be handled to the heat, power, electricity of sample load coupling simultaneously, material handling efficiency can be substantially improved, simultaneously
Greatly improve material property.For example, heat, power, electricity coupling under, by different coupling conditions, powder may be implemented
The Fast Sintering of body material, the broken of powder and refinement, the intracrystalline imperfection regulation of powder；Can also realize block materials into one
Step densification, microstructure optimization, plastic deformation, intracrystalline imperfection regulation etc..
Embodiment 2:
A kind of multi- scenarios method material handling system described in the present embodiment is by main machine frame, electric field system, high-temperature systems, pressure
The part such as system, vacuum system, atmosphere system, water-cooling system and control system forms.As shown in Fig. 2, main machine frame 1 is pressure
System and high-temperature systems provide mounting platform, while it also has very high rigidity, it is ensured that do not occur in pressure-loaded
Apparent flexible deformation, and generation system does not resonate.Electric field system provides output by a PLC technology high voltage power supply 2,
It is connected by two high tension terminals 4 separated being arranged in connecting wire and button fly front structure furnace body 3.Inside furnace body 3, connect
Terminal passes through conducting wire and connect with electrode 8 lower at the top of the top electrode 6 of 5 bottom of seaming chuck and push-down head 7, passes through between pressure head and electrode
Insulating ceramics connection.Top electrode 6 is connected to PLC technology high voltage power supply 2 by the high tension terminal 4 at top, and lower electrode 8 is logical
The high tension terminal 4 for crossing bottom is connected to PLC technology high voltage power supply 2.High-temperature systems are become by furnace body 3, high-power three-phase alternating-current
The electrical cabinet 9 and heater 10 that depressor, power controller, infrared temperature measurement apparatus and temperature controller form form.In this example, it sends out
Hot body is graphite.Pressure system is by Hydraulic servo system 11, and large-flow high-frequency rings servo valve 12 and static pressure support cylinder 13 forms, in oil
High accuracy displacement sensor 14 is installed at the top of cylinder, high-precision load transducer 15 is installed in oil cylinder bottom, then with furnace body
Seaming chuck 5 is connected with push-down head 7.Vacuum system is made of vacuum pump group 16, furnace body 3 and valve member etc..Atmosphere system is by high pressure gas
The composition such as source 17, furnace body 3 and valve member.Water-cooling system 18 provides cooling protection to furnace body 3 and Hydraulic servo system 11.Control system 19 with
NI control platform is core, is integrated with electric field controls, temperature control, pressure control and atmosphere control function.
Fire door is first turned on when work, the powder sample being placed in mold is placed between push-down head, can also be direct
Block sample is placed between upper push-down head, then controlling cylinder movement by pressure system connects upper push-down head and sample closely
Touching, is then shut off fire door and opens vacuum system, and multi- scenarios method test can be started by reaching requirement to vacuum degree in furnace body.?
It can open after atmosphere system injects protection gas in furnace body after vacuum degree reaches requirement and start to test again.During test,
Material can be handled to the heat, power, electricity of sample load coupling simultaneously, material handling efficiency can be substantially improved, simultaneously
Greatly improve material property.For example, heat, power, electricity coupling under, by different coupling conditions, powder may be implemented
The Fast Sintering of body material, the broken of powder and refinement, the intracrystalline imperfection regulation of powder；Can also realize block materials into one
Step densification, microstructure optimization, plastic deformation, intracrystalline imperfection regulation etc..
Embodiment 3:
A kind of multi- scenarios method material handling system described in the present embodiment is by main machine frame, electric field system, high-temperature systems, pressure
The part such as system, atmosphere system, water-cooling system and control system forms.As shown in Figure 1, main machine frame 1 is pressure system and height
Warm system provides mounting platform, while it also has very high rigidity, it is ensured that apparent bullet does not occur in pressure-loaded
Property deformation, and not generation system resonate.Electric field system provides output by a PLC technology high voltage power supply 2, passes through connection
Two high tension terminals 4 separated being arranged on conducting wire and button fly front structure furnace body 3 are connected.Inside furnace body 3, binding post passes through
Conducting wire is connect with electrode 8 lower at the top of the top electrode 6 of 5 bottom of seaming chuck and push-down head 7, passes through insulating ceramics between pressure head and electrode
Connection.Top electrode 6 is connected to PLC technology high voltage power supply 2 by the high tension terminal 4 at top, and lower electrode 8 passes through bottom
High tension terminal 4 is connected to PLC technology high voltage power supply 2.High-temperature systems are by furnace body 3, high-power three-phase alternating-current transformer, function
Rate controller, the electrical cabinet 9 of thermocouple and temperature controller composition and heater 10 form.In this example, heater is molybdenum filament.Pressure
Force system is by Hydraulic servo system 11, and large-flow high-frequency rings servo valve 12 and static pressure support cylinder 13 forms, and is equipped at the top of oil cylinder
High accuracy displacement sensor 14 is equipped with high-precision load transducer 15 in oil cylinder bottom, then with the seaming chuck 5 of furnace body and push
First 7 are connected.Atmosphere system is made of high-pressure air source 17, furnace body 3 and valve member etc., and furnace body 3 is able to bear compared with hyperbar, is passed through high pressure
After gas hydrostatic pressure can be provided to sample.Water-cooling system 18 provides cooling protection to furnace body 3 and Hydraulic servo system 11.Control system
System is integrated with electric field controls, temperature control, pressure control and atmosphere control function using NI control platform as core.
Fire door is first turned on when work, the powder sample being placed in mold is placed between push-down head, can also be direct
Block sample is placed between upper push-down head, then controlling cylinder movement by pressure system connects upper push-down head and sample closely
Touching, is then shut off fire door and opens atmosphere system, and after vacuum degree reaches requirement, injection high pressure gas applies hydrostatic in furnace body
Pressure starts to test again.During test, while material is handled to the heat, power, electricity of sample load coupling, it can be substantially
Material handling efficiency is promoted, while greatling improve material property.For example, heat, power, electricity coupling under, pass through difference
Coupling condition, the Fast Sintering of powder body material, the broken and refinement of powder, the intracrystalline imperfection regulation of powder may be implemented；Also
May be implemented block materials it is further densification, microstructure optimization, plastic deformation, intracrystalline imperfection regulation etc..
Embodiment 4:
A kind of multi- scenarios method material handling system described in the present embodiment is by main machine frame, electric field system, high-temperature systems, pressure
The part such as system, water-cooling system and control system forms.As shown in Figure 1, main machine frame 1 provides for pressure system and high-temperature systems
Mounting platform, while it also has very high rigidity, it is ensured that apparent flexible deformation does not occur in pressure-loaded, and
Generation system does not resonate.Electric field system provides output by a PLC technology high voltage power supply 2, passes through connecting wire and seaming chuck
Lower electrode 8 connects at the top of the top electrode 6 and push-down head 7 of 5 bottoms, is connected between pressure head and electrode by insulating ceramics.High temperature system
Electrical cabinet 9 that system is made of high-power three-phase alternating-current transformer, power controller, thermocouple and temperature controller and 10 groups of heater
At.In this example, heater is nichrome wire.Pressure system rings 12 He of servo valve by Hydraulic servo system 11, large-flow high-frequency
Static pressure support cylinder 13 forms, and high accuracy displacement sensor 14 is equipped at the top of oil cylinder, is equipped with high-precision in oil cylinder bottom
Load transducer 15, then be connected with the seaming chuck 5 of furnace body.Push-down head 7 is connected with the pedestal of main machine frame.Water-cooling system 18 is watched
It takes oil sources 9 and cooling protection is provided.Control system 15 is integrated with electric field controls, temperature control and pressure using NI control platform as core
Power control function.
The powder sample being placed in mold when work is placed between push-down head, can also directly be placed block sample
Between upper push-down head, then controlling cylinder movement by pressure system is in close contact upper push-down head and sample, then starts more
Field coupling test.During test, material can be handled to the heat, power, electricity of sample load coupling simultaneously, it can be substantially
Material handling efficiency is promoted, while greatling improve material property.For example, heat, power, electricity coupling under, pass through difference
Coupling condition, the Fast Sintering of powder body material, the broken and refinement of powder, the intracrystalline imperfection regulation of powder may be implemented；Also
May be implemented block materials it is further densification, microstructure optimization, plastic deformation, intracrystalline imperfection regulation etc..
Claims (9)
1. a kind of multi- scenarios method material handling system, which is characterized in that including main machine frame (1), main machine frame (1) is equipped with furnace
Body (3), furnace body (3) top are equipped with static pressure support cylinder (13), and the oil pipe of static pressure support cylinder (13) passes through large-flow high-frequency and rings
Servo valve (12) is connected to Hydraulic servo system (11), and the seaming chuck (5) that static pressure support cylinder (13) driving is located at the top of furnace body (3) is applied
Add downward high-frequency alternating pressure, seaming chuck (5) bottom end is connected with top electrode (6) by insulating ceramics；Furnace body (3) bottom is equipped with
Push-down head (7) corresponding with seaming chuck (5)；Push-down head (7) top is connected with lower electrode (8) by insulating ceramics, top electrode (6)
It is connected respectively to the PLC technology high voltage power supply (2) of furnace body (3) outside with lower electrode (8), for providing high voltage electric field for material；
The heater (10) being additionally provided with as material radiant heating in the furnace body (3), heater (10) is by being arranged in furnace body (3) outside
Electrical cabinet (9) control.
2. multi- scenarios method material handling system according to claim 1, which is characterized in that further include being connect with furnace body (3)
To provide the vacuum pump group (16) of vacuum environment in furnace body (3).
3. multi- scenarios method material handling system according to claim 1 or 2, which is characterized in that further include connecting with furnace body (3)
What is connect provides the high-pressure air source (17) of protective atmosphere into furnace body (3), and for electric field controls, temperature control, pressure control
With the control system (19) of control climate；The furnace body (3) is button fly front structure.
4. multi- scenarios method material handling system according to claim 1, which is characterized in that further include to furnace body (3) and watching
It takes oil sources (11) and the water-cooling system (18) of cooling protection is provided, and for electric field controls, the control of temperature control and pressure control
System (19) processed.
5. multi- scenarios method material handling system according to claim 1, which is characterized in that the top of the furnace body (3) and
Bottom is all provided with there are two isolated high tension terminal (4), and top electrode (6) is connected to and can be compiled by the high tension terminal (4) at top
Process control high voltage power supply (2), lower electrode (8) are connected to PLC technology high voltage power supply by the high tension terminal (4) of bottom
(2).
6. multi- scenarios method material handling system according to claim 1, which is characterized in that the electrical cabinet (9) includes big
Power three-phase ac transformer, power controller and temperature controller and thermoelectricity occasionally infrared temperature measurement apparatus；External three-phase alternating current
Source enters electrical cabinet (9) and first connect with power controller, then is converted to low-voltage dc power supply by high-power three-phase alternating-current transformer,
And it is transferred to the heater (10) in furnace body (3)；Thermoelectricity occasionally infrared temperature measurement apparatus is arranged near heater (10), will measure
Temperature signal be transmitted to temperature controller, temperature controller sends signal to power controller according to technological parameter and adjusts heating power, is formed
Closed-loop control.
7. multi- scenarios method material handling system according to claim 1, which is characterized in that the static pressure support cylinder (13)
Top is equipped with displacement sensor (14), and bottom is equipped with load transducer (15).
8. multi- scenarios method material handling system according to claim 1, which is characterized in that the push-down head (7) is by setting
Another static pressure support cylinder driving below furnace body (3) is set, to apply upward high-frequency alternating pressure.
9. multi- scenarios method material handling system according to claim 1, which is characterized in that the heater (10) is by iron
Heating wire made of chromium aluminium, nickel chromium triangle, tungsten, W-Re, platinoiridita or molybdenum, or by silicon molybdenum, silicon-carbon, Lanthanum Chromite, zirconium oxide, zirconium boride or stone
Heating rod made of ink.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109373761A (en) * | 2018-11-27 | 2019-02-22 | 成都易飞得材料科技有限公司 | A kind of multi- scenarios method material handling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373761A (en) * | 2018-11-27 | 2019-02-22 | 成都易飞得材料科技有限公司 | A kind of multi- scenarios method material handling system |
| CN109373761B (en) * | 2018-11-27 | 2023-12-15 | 成都易飞得材料科技有限公司 | Multi-field coupling material processing system |
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