CN104526948B - Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine - Google Patents
Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine Download PDFInfo
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- CN104526948B CN104526948B CN201410750607.1A CN201410750607A CN104526948B CN 104526948 B CN104526948 B CN 104526948B CN 201410750607 A CN201410750607 A CN 201410750607A CN 104526948 B CN104526948 B CN 104526948B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
- B29C2043/568—Compression moulding under special conditions, e.g. vacuum in a magnetic or electric field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to multi-field coupling mold pressing forming equipment, and particularly relates to a thermal-mechanical-magnetic multi-field coupling mold pressing forming machine and a method for controlling the mold pressing forming condition by a control cabinet, which can be used for solving the problem that the type of equipment is lacked. The scheme is as follows: the thermal-mechanical-magnetic multi-field coupling mold pressing forming machine comprises a hydraulic machine, wherein the hydraulic machine comprises a rack and a hydraulic column head, wherein the end surface of the hydraulic column head is provided with a pressure sensor, a thermal-mechanical cooling water sleeve layer, an insulation layer, a resistor heater array and a heating withstand voltage panel; the side surface of the heating withstand voltage panel is provided with a temperature sensor connected with the control cabinet; the rack is provided with an electric coil; another temperature sensor is arranged on the surface of the electromagnetic coil; the electromagnetic coil is externally wrapped by a magnetic field cooling water sleeve layer; the surface of the inner side of the magnetic field cooling water sleeve layer is provided with a magnetic field sensor. The thermal-mechanical-magnetic multi-field coupling mold pressing forming machine has the advantages that firstly, the thermal-mechanical-magnetic field coupling mold pressing forming machine is designed; secondly, the control range is wide, the continuous operation time is long, mold pressing forming can be carried out under multi-field coupling state, single-field state or field-free state; thirdly, the fields have no interference, the reliability is high, and the control precision is high.
Description
Technical field
The present invention relates to multi- scenarios method compression molding device, specially Re-power-magnetic multi- scenarios method compression molding forming machine.
Background technology
Magnetic function polymer composite because have excellent properties, such as electricity, optics, magnetism characteristic, light weight, low magnetic
Damage, ambient stable, easy processing, Flouride-resistani acid phesphatase, and dielectric constant, dielectric loss, pcrmeability, magnetic loss be not substantially with frequency and temperature
Change, molecule structure change various it is possible to make stable monophasic fluid and the element of various complicated shape, thus can be wide
General be applied to intelligent damping, isolated material, light wide-band microwave absorbent, magnetoresistive sensor, low magnetic loss high-frequency microwave communication device,
Magnetic seal device.If infinitely fine application prospect can undoubtedly be had with the cooperation of other functional materials.But, magnetic function high score
The application of sub- composite is significantly less than expection, main cause be this material exist all the time mechanical property and feature etc. be difficult to
The problem of Shi Tigao.Research finds recently, applies external magnetic field in magnetic function polymer composite forming process, can be effective
Control distribution in macromolecule matrix for the magnetic particle, the mechanical property of magnetic function composite can not only be effectively improved, with
When greatly improve its feature.This is found to be its extensive application and lays a good foundation.Therefore, for such material in the action of a magnetic field
The research of lower machine-shaping is extensively carried out.It is known that in magnetic function polymer composite die press technology for forming also
It is related to temperature field and on-load pressure.The size in magnetic field and load time, temperature and heat time heating time, on-load pressure and time etc. this
A little factors are the key factors with performance for the structure controlling magnetic function polymer composite.Thus, system probes into these shadows
Ring the impact to magnetic function polymer composite structure and performance for the factor, not only its combination property of raising is played heavy to closing
Act on, and the research for science of intelligent materials also has important science and using value.
Couple the compression molding device under loading environment however, there is no at present and can directly carrying out the field of force, magnetic field and thermal field.
Trace it to its cause, technical difficult points have three aspects: 1, in equipment, the applying of variable magnetic field generally adopts coil.But electric current in coil
The heating problem that causes of heat effect, coil temperature will be led to raise, and magnetic field will be bigger, temperature liter must be higher, and this directly limits
Load the ultimate value in magnetic field and the continuous time loading magnetic field, therefore, design and develop the magnetic field generation that can continuously load highfield
Device becomes one of challenge；2nd, the applying of thermal field generally adopts Resistant heating, however, because electric current passes through during resistance wire necessarily
Produce magnetic field, thus having influence on size and the uniformity in test specimen area magnetic field to be added；Meanwhile, the heat that coil produces influences whether test specimen
The temperature level in area and the uniformity, therefore, exploitation becomes the two of challenge with the non-interfering magnetic field in magnetic field and thermal field applying mode；
3rd, between the field of force, magnetic field, each accurate control of thermal field and sensing element, and the other each part of instrument, often there is electricity, the phase of magnetic
Mutually disturb, around magnetic field, often can only adopt diamagnetic material, ensure that thermal coefficient of expansion is sufficiently low simultaneously, thus lead to molding to set
Standby each position selection and the difficulty of processing, this is the three of challenge.Therefore, design one kind effectively realizes non-interfering high property
Re-power-magnetic multi- scenarios method compression molding forming machine is of great significance for magnetic function field of polymer composite material tool.
Content of the invention
The present invention solves to lack the technical problem of multi- scenarios method compression molding device at present, provides a kind of Re-power-Ci Duochang
Coupling compression molding forming machine and the method for control chamber control compression molding condition.
The present invention is achieved by the following technical solutions: Re-power-magnetic multi- scenarios method compression molding forming machine, including hydraulic pressure
Machine, described hydraulic press includes frame and the upper hydraulic column head relative, independent control lifts and lower hydraulic pressure stigma, described hydraulic column
End surface is sequentially provided with pressure transducer, Re-power cooling water jacket layer, insulating barrier, resistance heater array, heats resistance to locating back；
Described Re-power cooling water jacket layer is the hydrologic cycle cooling system with water inlet and outlet；Described resistance heater array edge
It is embedded in the resistance to locating back of heating；The pressure flat board side of described heating is provided with the first temperature sensor, described first temperature sensor
It is connected with control chamber；Described hydraulic press, resistance heater array, Re-power cooling water jacket layer, pressure transducer and control chamber are even
Connect；Solenoid around lower hydraulic pressure stigma is provided around on described frame, described solenoid surface is provided with second temperature
Sensor, described solenoid is wrapped with magnetic-field cooling water jacket layer, and described magnetic-field cooling system is also with water inlet and to go out
The hydrologic cycle cooling system at the mouth of a river；Set between described magnetic-field cooling water jacket layer inner surface, upper hydraulic column head and lower hydraulic pressure stigma
There is magnetic field sensor；Described magnetic field sensor, second temperature sensor, magnetic-field cooling system and solenoid and control chamber are even
Connect.The upper and lower hydraulic pressure stigma applying power field of hydraulic press.The size of determination of pressure sensor hydraulic pressure stigma applying power field, insulating barrier
Prevent resistance heater array from leaking electricity.Re-power cooling water jacket layer is cooled down for insulating barrier, prevents temperature from passing to pressure and passes
Sensor, and then adjust the temperature of resistance heater array and resistance to locating back, realize the precise control of thermal field.Resistance heater array
It is to heat pressure flat heater after energising.Additionally, upper and lower hydraulic pressure stigma and the resistance to locating back of heating also play the effect of yoke,
Improve magnetic field intensity and the homogeneity of solenoid.First temperature sensor measurement heats the temperature of resistance to locating back, with accurate
Control the size in institute heating field.Solenoid is field generator for magnetic.Magnetic-field cooling water jacket layer cools down to solenoid, prevents
Only solenoid conduction time long leads to produce too high temperature.Second temperature sensor measures solenoid surface temperature,
To realize the temperature of precise control solenoid generation.Magnetic field sensor measures the intensity in magnetic field between two hydraulic pressure stigmas.Control
Case passes through to gather the first temperature sensor, second temperature sensor, magnetic field sensor, the data of determination of pressure sensor, passes through
Control instruction is sent, thus coordinating to control by the size of current of resistance heater array, Re-power cooling jacket after analyzing and processing
Whether layer works, whether the size of current in solenoid, magnetic-field cooling water jacket layer work, the hydraulic pressure pump power of hydraulic press, with
Realize the mold pressing parameter of precise control Re-power-magnetic coupling.
Described control chamber includes rectifier power source, Programmable Logic Controller plc, data collecting card, signal generating module, d/a mould
Block and power amplifier；Described Programmable Logic Controller plc is connected with data collecting card and signal generating module；Described signal occurs
Module is connected with d/a module and power amplifier；Described d/a module is connected with rectifier power source；Described first temperature sensor,
Two temperature sensors, pressure transducer, magnetic field sensor are connected with the data collecting card of control chamber；Described resistance heater battle array
Row, solenoid are connected with the rectifier power source of control chamber；Described Re-power cooling water jacket layer, magnetic-field cooling water jacket layer and hydraulic press
It is connected with the power amplifier of control chamber.Programmable Logic Controller plc is responsible for the setting of compression molding condition and data signal is entered
Row processes, analyzes, judging, sending control instruction.Data collecting card is responsible for the collection of each sensing data.Signal generating module
The control instruction being responsible for sending Programmable Logic Controller is converted to drive signal.Signal generating module is changed out by d/a module
Drive signal is converted to analogue signal amount, thus controlling the electric current of rectifier power source output, voltage or power.Power amplifier will be believed
Number occur the drive signal changed out of module to carry out power amplification, thus control magnetic-field cooling water jacket layer whether to work, Re-power cold
But whether water jacket layer works and the hydraulic pump of hydraulic press operates and power.Rectifier power source is to solenoid and resistance heater array
There is provided electric energy, thus producing magnetic field or distributing heat.
It is following that the control chamber of described Re-power-magnetic multi- scenarios method compression molding forming machine controls the method for compression molding condition to include
Step:
Step 101: by Programmable Logic Controller plc, compression molding condition is carried out with presetting, described compression molding condition
Including magnetic field intensity, thermal field, on-load pressure size；
Step 102: Programmable Logic Controller plc sends startup magnetic field and thermal field control instruction, and pass through signal generating module
Output magnetic field and the drive signal of thermal field；
The drive signal of output in step 102 is carried out digital-to-analogue conversion by step 103:d/a module, output analog quantity electric current or
Voltage signal；
The analog quantity curtage signal that step 104:d/a module exports controls rectifier power source to solenoid and resistance
Heater arrays are powered, thus producing magnetic field and thermal field；
Step 105: the first temperature sensor, second temperature sensor and magnetic field sensor collection are passed through by data collecting card
Temperature and magnetic field strength date；
Step 106: Programmable Logic Controller plc to collection data carry out processing, analyze, and with presetting magnetic field intensity
It is compared with temperature conditionss:
If more than presetting value, Programmable Logic Controller plc produces magnetic-field cooling water jacket layer by signal generating module
And/or Re-power cooling water jacket layer drive signal, power amplifier is amplified rear driving magnetic field cooling jacket layer to drive signal
And/or Re-power cooling water jacket layer starts working；
If less than presetting value, return to step 102 restarts to test；
If being equal to presetting value, enter step 107；
Step 107: Programmable Logic Controller plc sends field of force control instruction, and exports the field of force by signal generating module
Drive signal；
Step 108: in step 107, the field of force drive signal of output amplifies the hydraulic pressure of rear-guard hydrodynamic press through power amplifier
Pump, so that the pressing of upper and lower hydraulic pressure stigma, produces constant pressure；
Step 109: data collecting card gathers pressure data by pressure transducer；
Step 110: Programmable Logic Controller plc carries out processing, analyzes to the pressure data of collection, and judge whether to reach pre-
The pressure condition setting:
If being judged as NO, return to step 107 restarts to test；
If being judged as YES, automatically control end-of-job.
The invention has the advantages that 1, design first be capable of automatic under Re-power-magnetic coupling loading environment
Control the moulding press of compression molding；2nd, (maximum magnetic field strength is more than 1.5t, and maximum temperature is higher than for heat, power, magnetic field span of control width
250 DEG C, maximum pressure is more than 15mpa) stream time length (stream time is not less than 0.5h), not only can multi- scenarios method
Under the conditions of continuously work, also can compression molding under single field or field-off state；3rd, between each field, electricity, magnetic, heat mutually do not interfere with each other, tool
There is higher reliability, and control accuracy is higher.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is control chamber connection relationship module figure of the present invention；
Fig. 3 controls the method flow diagram of compression molding condition for the present invention.
Hydraulic column head in figure 1-, 2- insulating barrier, 3- solenoid, the 4- resistance to locating back of heating, 5- second temperature sensor,
6- Re-power cooling water jacket layer, 7- frame, hydraulic pressure stigma under 8-, 9- pressure transducer, 10- magnetic field sensor, 11- resistance heating
Device array, 12- magnetic-field cooling water jacket layer, 13- first temperature sensor.
Specific embodiment
Re-power-magnetic multi- scenarios method compression molding forming machine, including hydraulic press, described hydraulic press include frame 7 with relative,
Independent control lifting upper hydraulic column head 1 and lower hydraulic pressure stigma 8, described hydraulic column end surface be sequentially provided with pressure transducer 9,
Re-power cooling water jacket layer 6, insulating barrier 2, resistance heater array 11, the resistance to locating back 4 of heating；Described Re-power cooling water jacket layer 6
It is the hydrologic cycle cooling system with water inlet and outlet；Described resistance heater array 11 is embedded in the resistance to locating back 4 of heating
Interior；Resistance to locating back 4 side of described heating is provided with the first temperature sensor 13, and described first temperature sensor 13 is connected with control
Case；Described hydraulic press, resistance heater array 11, Re-power cooling water jacket layer 6, pressure transducer 9 are connected with control chamber；Described
Solenoid 3 around lower hydraulic pressure stigma is provided around on frame 7, described solenoid 3 surface is provided with second temperature sensing
Device 5, described solenoid 3 is wrapped with magnetic-field cooling water jacket layer 12, and described magnetic-field cooling water jacket layer 12 is also with water inlet
Hydrologic cycle cooling system with outlet；Described magnetic-field cooling water jacket layer 12 inner surface, upper hydraulic column head 1 and lower hydraulic pressure stigma
It is provided with magnetic field sensor 10 between 8；Described magnetic field sensor 10, second temperature sensor 5, magnetic-field cooling water jacket layer 12 and electromagnetism
Coil 3 is connected with control chamber.
During use, start and control the work of Re-power cooling water jacket layer 6 and magnetic-field cooling water jacket layer 12 by control chamber,
Magnetic conduction mould is placed on the resistance to locating back of heating 4 of lower hydraulic pressure stigma 8, control chamber passes through to control the hydraulic pump of hydraulic press, thus
Lower hydraulic pressure stigma 8 and magnetic conduction mould is controlled to drop to compacting position, upper hydraulic column head 1 drops to and is fixed on hydraulic column head 1
Heat resistance to locating back 4 and magnetic conduction contacting dies.Control chamber passes through to control the electrical current size of resistance heater array 11, thus
Resistance heater array is controlled to heat to heating resistance to locating back 4, to realize the preheating of magnetic conduction mould.First temperature sensor 13 is surveyed
When constant temperature degree reaches design temperature, control chamber controls resistance heater array 11 to stop heating, and upper hydraulic column head 1 rises, lower liquid
Compression leg head 8 is lifted magnetic conduction mould and is risen to initial position.In magnetic conduction die surface smearing release agent, then by uncured magnetic
Functional polymer composites are poured in the groove of mould lower plate, reach after gel point after material, mould upper plate is closed, passes through
Control chamber controls lower hydraulic pressure stigma 8 to drop to compacting position, and upper hydraulic column head 1 drops on the resistance to locating back of heating 4 and magnetic conduction mould
Plate is fitted.Set heat, power, magnetic field size and the time of coupling by control chamber, upper and lower hydraulic pressure stigma passes through to heat resistance to locating back
The upper and lower plate of 4 pairs of magnetic conduction moulds applies constant pressure.Resistance heater array 11 passes through the resistance to locating back 4 of heating is heated, with
And first mensure to temperature for the temperature sensor 13, thus realize mould and magnetic function polymer composite are applied permanent
Fixed thermal field.Magnetic field is produced, upper and lower hydraulic pressure stigma and the resistance to locating back 4 of heating are in compacting position simultaneously after solenoid 3 energising
When be located at solenoid 3 produce magnetic field in, serve the effect of yoke, not only strengthen the intensity in magnetic field, also make magnetic field
Homogeneity have significant raising.Second temperature sensor 5 produces the size of thermal field after measuring solenoid 3 energising, work as electricity
When the thermal field that magnetic coil 3 produces exceedes design temperature, control chamber startup magnetic-field cooling water jacket layer 12 carries out cold to solenoid 3
But.In the range of setting time, Re-power-magnetic multi- scenarios method compression molding forming machine achieves to magnetic function polymer composite
Apply steady temperature, constant pressure, stationary magnetic field.After reaching setting time, resistance heater array 11 stops heating, electromagnetic wire
Circle 3 stops energising and produces magnetic field, and upper and lower hydraulic pressure stigma rises to initial position respectively, takes out mould, die sinking, taking-up is pressed into
The magnetic function polymer composite of type, completes under the conditions of Re-power-magnetic multi- scenarios method to magnetic function polymer composite
Compressing.
When being embodied as, described control chamber includes rectifier power source 18, Programmable Logic Controller plc15, data collecting card 14, letter
Number there is module 16, d/a module 19 and power amplifier 17；Described Programmable Logic Controller plc15 and data collecting card 14 and letter
Number occur module 16 connect；Described signal generating module 16 is connected with d/a module 19 and power amplifier 17；Described d/a module
19 are connected with rectifier power source 18；Described first temperature sensor 13, second temperature sensor 5, pressure transducer 9, magnetic field sensing
Device 10 is connected with the data collecting card 14 of control chamber；The rectified current of described resistance heater array 11, solenoid 3 and control chamber
Source 18 connects；The power amplifier 17 of described Re-power cooling water jacket layer 6, magnetic-field cooling water jacket layer 12 and hydraulic press and control chamber
Connect.Programmable Logic Controller plc15 be responsible for the setting of compression molding condition data signal is carried out process, analyze, judge,
Send control instruction.Data collecting card 14 is responsible for the collection of each sensing data.Signal generating module 16 is responsible for will be programmable
The control instruction that controller plc15 sends is converted to drive signal.The driving that signal generating module 16 is changed out by d/a module 19
Signal is converted to analogue signal amount, thus controlling the electric current of rectifier power source 18 output, voltage or power.Power amplifier 17 will be believed
Number the drive signal changed out of module 16 is occurred to carry out power amplification, thus driving magnetic field cooling water jacket layer 12, Re-power cooling water
Jacket layer 6 starts work and the hydraulic pump operating of hydraulic press.Rectifier power source 18 provides to solenoid 3 and resistance heater array 11
Electric energy, thus producing magnetic field or distributing heat.Described upper hydraulic column head 1, lower hydraulic pressure stigma 8 are made up of dt4 electrical pure iron, described
Heat resistance to locating back 4 to be made up of alloy cast aluminium.The hydraulic pressure stigma that dt4 electrical pure iron is made has good magnetic conductance, metal casting
The resistance to locating back of heating that aluminum is made has good heat conductivility, magnetic property and pressure performance, can effectively improve electric coil
Magnetic field intensity and the homogeneity in magnetic field.The water inlet of described Re-power cooling water jacket layer 6 and magnetic-field cooling water jacket layer 12 and/or go out
It is provided with electromagnetic valve, described electromagnetic valve is connected with the power amplifier 17 of control chamber at the mouth of a river.The power amplifier 17 of control chamber
By controlling the opening and closing of electromagnetic valve thus whether controlling the work of institute Re-power cooling water jacket layer 6 and magnetic-field cooling water jacket layer 12.Institute
State magnetic-field cooling water jacket layer 12 to be made up of austenite stainless steel metal.Austenitic stainless steel has good resistance to elevated temperatures.Institute
State insulating barrier 2 be mica spacer, Semen avenae nudae paper, leaching dimethylbenzene insullac binder integrate form.Mica spacer has good insulation
Performance, Semen avenae nudae paper has good insulating properties, pliability, water-fast, wear-resisting, grease resistance, ageing-resistant, leaching dimethylbenzene insullac binder tool
There are good insulating properties.
It is following that the control chamber of described Re-power-magnetic multi- scenarios method compression molding forming machine controls the method for compression molding condition to include
Step:
Step 101: by Programmable Logic Controller plc15, compression molding condition is carried out with presetting, described compression molding bar
Part includes magnetic field intensity, thermal field, on-load pressure size；
Step 102: Programmable Logic Controller plc15 sends startup magnetic field and thermal field control instruction, and by signal, mould occurs
Block 16 exports the drive signal of magnetic field and thermal field；
The drive signal of output in step 102 is carried out digital-to-analogue conversion by step 103:d/a module 19, exports analog quantity electric current
Or voltage signal；
The analog quantity curtage signal of step 104:d/a module 19 output controls rectifier power source 18 to solenoid 3
Power with resistance heater array 11, thus producing magnetic field and thermal field；
Step 105: the first temperature sensor 13, second temperature sensor 5 and magnetic field sensing are passed through by data collecting card 14
Device 10 collecting temperature and magnetic field strength date；
Step 106: Programmable Logic Controller plc15 carries out processing, analyzes to the data of collection, and strong with presetting magnetic field
Degree and temperature conditionss are compared:
If more than presetting value, Programmable Logic Controller plc15 produces magnetic-field cooling water by signal generating module 16
Jacket layer 12 and/or Re-power cooling water jacket layer 6 drive signal, power amplifier 17 is amplified rear driving magnetic field to drive signal
Cooling water jacket layer 12 and/or Re-power cooling water jacket layer 6 are started working, and are then back to step 105 and restart to test；
If less than presetting value, return to step 102 restarts to test；
If being equal to presetting value, enter step 107；
Step 107: Programmable Logic Controller plc15 sends field of force control instruction, and pass through signal generating module 16 power output
The drive signal of field；
Step 108: in step 107, the field of force drive signal of output amplifies the liquid of rear-guard hydrodynamic press through power amplifier 17
Press pump, so that the pressing of upper and lower hydraulic pressure stigma, produces constant pressure；
Step 109: data collecting card 14 gathers pressure data by pressure transducer 9；
Step 110: Programmable Logic Controller plc15 carries out processing, analyzes to the pressure data of collection, and judges whether to reach
Presetting pressure condition:
If being judged as NO, return to step 107 restarts to test；
If being judged as YES, automatically control end-of-job.
Claims (3)
1. a kind of Re-power-magnetic multi- scenarios method compression molding forming machine, including hydraulic press, it is characterized by: described hydraulic press includes frame
(7) with relative, the upper hydraulic column head (1) of independent control lifting and lower hydraulic pressure stigma (8), described upper hydraulic column head (1) and under
Hydraulic pressure stigma (8) end face is sequentially provided with pressure transducer (9), Re-power cooling water jacket layer (6), insulating barrier (2), resistance heater
Array (11), the resistance to locating back of heating (4)；Described Re-power cooling water jacket layer (6) is that the water circulation with water inlet and outlet is cold
But system；Described resistance heater array (11) is embedded in the resistance to locating back of heating (4)；Described heating resistance to locating back (4) side
It is provided with the first temperature sensor (13), described first temperature sensor (13) is connected with control chamber；Described hydraulic press, resistance heating
Device array (11), Re-power cooling water jacket layer (6), pressure transducer (9) are connected with control chamber；It is provided around on described frame (7)
Solenoid (3) around lower hydraulic pressure stigma, described solenoid (3) surface is provided with second temperature sensor (5), described electricity
Magnetic coil (3) is wrapped with magnetic-field cooling water jacket layer (12), and described magnetic-field cooling water jacket layer (12) is also with water inlet and to go out
The hydrologic cycle cooling system at the mouth of a river；Described magnetic-field cooling water jacket layer (12) inner surface, upper hydraulic column head (1) and lower hydraulic pressure stigma
(8) it is provided with magnetic field sensor (10) between；Described magnetic field sensor (10), second temperature sensor (5), magnetic-field cooling water jacket layer
(12) it is connected with control chamber with solenoid (3), described control chamber includes rectifier power source (18), Programmable Logic Controller plc(15),
Data collecting card (14), signal generating module (16), d/a module (19) and power amplifier (17)；Described Programmable Logic Controller
Plc(15) it is connected with data collecting card (14) and signal generating module (16)；Described signal generating module (16) and d/a module
(19) connect with power amplifier (17)；Described d/a module (19) is connected with rectifier power source (18)；Described first temperature sensor
(13), second temperature sensor (5), pressure transducer (9), magnetic field sensor (10) and the data collecting card (14) of control chamber connect
Connect；Described resistance heater array (11), solenoid (3) are connected with the rectifier power source (18) of control chamber；Described Re-power cooling
Water jacket layer (6), magnetic-field cooling water jacket layer (12) and hydraulic press are connected with the power amplifier (17) of control chamber.
2. Re-power according to claim 1-magnetic multi- scenarios method compression molding forming machine, it is characterized by: described upper hydraulic column head
(1), lower hydraulic pressure stigma (8) is made up of dt4 electrical pure iron, and the resistance to locating back of described heating (4) is made up of alloy cast aluminium, described magnetic field
Cooling water jacket layer (12) is made up of austenite stainless steel metal, and described insulating barrier (2) is mica spacer, Semen avenae nudae paper, leaching dimethylbenzene
Insullac binder is integrated and is formed.
3. Re-power according to claim 2-magnetic multi- scenarios method compression molding forming machine, its control chamber controls compression molding condition
Method comprise the following steps:
Step 101: by Programmable Logic Controller plc(15) compression molding condition is carried out with presetting, described compression molding condition
Including magnetic field intensity, thermal field, on-load pressure size；
Step 102: Programmable Logic Controller plc(15) send startup magnetic field and thermal field control instruction, and pass through signal generating module
(16) drive signal of output magnetic field and thermal field；
The drive signal of output in step 102 is carried out digital-to-analogue conversion by step 103:d/a module (19), output analog quantity electric current or
Voltage signal；
The analog quantity curtage signal that step 104:d/a module (19) exports controls rectifier power source (18) to solenoid
(3) power, thus producing magnetic field and thermal field with resistance heater array (11)；
Step 105: the first temperature sensor (13), second temperature sensor (5) and magnetic field are passed through by data collecting card (14) and passes
Sensor (10) collecting temperature and magnetic field strength date；
Step 106: Programmable Logic Controller plc(15) to collection data carry out processing, analyze, and with presetting magnetic field intensity
It is compared with temperature conditionss:
If more than presetting value, Programmable Logic Controller plc(15) magnetic-field cooling water is produced by signal generating module (16)
Jacket layer (12) and/or Re-power cooling water jacket layer (6) drive signal, power amplifier (17) is amplified rear-guard to drive signal
Moving field cooling water jacket layer (12) and/or Re-power cooling layer (6) are started working, and are then back to step 105 and restart to test；
If less than presetting value, return to step 102 restarts to test；
If being equal to presetting value, enter step 107；
Step 107: Programmable Logic Controller plc(15) send field of force control instruction, and pass through signal generating module (16) power output
The drive signal of field；
Step 108: in step 107, the field of force drive signal of output amplifies the hydraulic pressure of rear-guard hydrodynamic press through power amplifier (17)
Pump, so that the pressing of upper and lower hydraulic pressure stigma, produces constant pressure；
Step 109: data collecting card (14) gathers pressure data by pressure transducer (9)；
Step 110: Programmable Logic Controller plc(15) pressure data of collection is carried out processing, analyzes, and judge whether to reach pre-
The pressure condition setting:
If being judged as NO, return to step 107 restarts to test；
If being judged as YES, automatically control end-of-job.
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| WO2008062757A1 (en) * | 2006-11-21 | 2008-05-29 | Ulvac, Inc. | Process for producing oriented object, molded object, and sintered object and process for producing permanent magnet |
| JP2009097995A (en) * | 2007-10-17 | 2009-05-07 | Ntn Corp | Magnetic encoder and rolling bearing |
| CN101323917B (en) * | 2008-06-25 | 2010-06-02 | 华南理工大学 | Method for preparing nanocrystalline block iron-base alloy material by four-field coupling sintering |
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