CN108436067A - A kind of casting holding furnace based on PLC control system - Google Patents
A kind of casting holding furnace based on PLC control system Download PDFInfo
- Publication number
- CN108436067A CN108436067A CN201810110599.2A CN201810110599A CN108436067A CN 108436067 A CN108436067 A CN 108436067A CN 201810110599 A CN201810110599 A CN 201810110599A CN 108436067 A CN108436067 A CN 108436067A
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- Prior art keywords
- casting
- valve
- holding furnace
- compression chamber
- controller
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- Pending
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- 238000005266 casting Methods 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 230000006835 compression Effects 0.000 claims abstract description 33
- 238000007906 compression Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000011109 contamination Methods 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000580063 Ipomopsis rubra Species 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005032 impulse control Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a kind of casting holding furnace based on PLC control system, including controller, shell, feed space, compression chamber, casting chamber, the inductor for detecting liquid parameter in holding furnace are provided in shell, feed space, compression chamber and casting chamber unicom successively, the controller is using programmable controller as main control unit, and pass through fuzzy PID algorithm, adjust the dynamic process at the pressure switching point needed for each casting, the pressure sensor is transferred to the controller by the detection signal acquisition of pressure, and by electrical signal form；With fast response time, stable and reliable in work, reproducible, small power consumption, contamination resistance be strong, small, simple in structure, light-weight, good manufacturability, and can directly connect with the ends PC and carry out field adjustable, meets production needs well.
Description
Technical field
The present invention relates to casting technology field more particularly to a kind of casting holding furnaces based on PLC control system.
Background technology
In casting industry, liquid insulating stove plays very important effect to the quality of casting, and the qualification rate of casting is deep
It is influenced by liquid insulating stove.In terms of the consumption of the energy, liquid insulating stove also accounts for prodigious share, especially in oil valence
Lattice skyrocket, and the energy lacks current, improves the heat-insulating property of holding furnace, can not only increase economic efficiency, moreover it is possible to preferably reduce
Destruction to environment, significantly reduces carbon emission.And conventional vacuum stove cannot be directed to different liquids real-time display and control guarantor
The keeping warm mode of warm stove, heat insulation effect is poor, and job insecurity easily causes environmental pollution and energy consumption, so, in line with " section
About the energy, improve efficiency, reduce pollution, reduce cost " basic principle, seek one kind overcome based on problem above can well
The cast insulation stove for meeting production, environment, technique etc. is necessary.
Invention content
Technical problems based on background technology, the present invention propose a kind of casting guarantor based on PLC control system
Warm stove, with fast response time, stable and reliable in work, reproducible, small power consumption, contamination resistance is strong, small, structure is simple
Single, light-weight, good manufacturability, and can directly connect with the ends PC and carry out field adjustable, production needs are met well.
A kind of casting holding furnace based on PLC control system proposed by the present invention, including controller, shell, in shell
It is provided with feed space, compression chamber, casting chamber, the inductor for detecting liquid parameter in holding furnace, feed space, compression chamber and casting
Make room unicom successively；
The first chute for receiving the liquid in smelting furnace, first chute and charging are provided with above feed space
Room seals unicom；
It is provided with sealing cover above compression chamber and conveys the air inlet pipe of inert gas, sealing cover and compression chamber into compression chamber
It is tightly connected by sealing ring, air inlet pipe enters across sealing cover in compression chamber, is provided in air inlet pipe described lazy for controlling
Property gas flow pressure-regulating valve, pressurize chamber interior walls on inlay the pressure being provided with for detecting gas pressure in compression chamber
Sensor；
It is provided with the Level meter for detecting liquid level position in casting chamber in casting chamber, is provided on Level meter
Adjustment inert gas enters the position travel switch of the gas pressure of balancing gate pit, and the position travel switch includes apart from liquid liquid
The liquid level that face is set gradually from the distant to the near transfinites valve, liquid level upper limit valve and liquid level lower limit valve, and casting chamber side is provided with fluid hole,
Strand is provided in fluid hole, strand outer surface is surrounded with crystallizer, and fluid hole is provided in one end far from casting chamber
Adjustment block for adjusting crystallizer position, fluid hole side are provided with the reversal valve for exhaust；
The controller, as main control unit, and by fuzzy PID algorithm, adjusts each casting using programmable controller
The dynamic process at required pressure switching point is made, the detection signal acquisition of pressure is passed through telecommunications by the pressure sensor
Number form is transferred to the controller；
Further, the digital valve that stepper motor directly drives is provided in inductor, when the institute for controlling the digital valve
When stating controller and sending out control signal, stepper motor rotation and the ball-screw by being set in the stepper motor make described
The rotational angle displacement of stepper motor is converted to the straight-line displacement of spool plate washer, and the valve port of inductor is made gradually to be turned on and off, step
Stepper motor rotates certain aperture that certain angle is equivalent to digital valve.
Further, the controller transfinites with inductor, liquid level valve, liquid level upper limit valve and liquid level lower limit valve, institute respectively
State pressure-regulating valve, pressure sensor signal connection.
Further, covering prevents the graphite flakes of liquid oxidation above liquid in feed space, compression chamber and casting chamber.
Further, the furnace building material of holding furnace includes the fire resisting that can be born high temperature and reduce slag and molten metal infiltration
Material, and the heat-barrier material of hot-fluid transmission can be blocked, the WDS nanometer micropore heat-barrier materials that the heat-barrier material is, the WDS receives
Meter Wei Kong heat-barrier materials are made of silica crystals and iron；The inert gas is neon.
Further, the controller includes control panel and PLC control system, and the control panel includes control interface
And control button, the control interface include that starting-up interface, input port display interface, output port display interface, parameter are set
Set interface and alert interface.
A kind of the advantages of holding furnace based on the casting of PLC control system provided by the invention, is：In structure of the invention
There is provided a kind of casting holding furnace based on PLC control system, have fast response time, it is stable and reliable in work, reproducible,
Small power consumption, contamination resistance be strong, small, simple in structure, light-weight, good manufacturability, and directly can mutually be tapped into the ends PC
Row field adjustable meets production needs well, with good economic efficiency, and the load capacity of PLC itself is strong, it is defeated to input
Go out and ensure that system has certain anti-interference ability using optical coupling, using fuzzy-adaptation PID control holding furnace pressure, takes optimal quasi-
It closes, can realize control under the premise of minimum system error to make the heat preservation furnace pressure of casting machine control, ensure that casting
Reliability, improve ensure casting quality；Holding furnace is using holding room furnace wall temperature after WDS nanometer micropores heat-barrier material
Decline 8.5 DEG C relative to conventional vacuum stove, thermal discharge reduces 0.1kW/m2, 7.2 DEG C of compression chamber's furnace wall temperature decline, thermal discharge subtracts
Few 0.09kW/m2, energy consumption is not only saved, the discharge of pollutant is reduced, and improves the steady of temperature in holding furnace
It is qualitative, reduce the possibility that casting generates defect.
Description of the drawings
Fig. 1 is a kind of casting holding furnace structural schematic diagram based on PLC control system proposed by the present invention；
Fig. 2 is a kind of casting holding furnace compression chamber control system signal based on PLC control system proposed by the present invention
Figure；
Wherein, 1, shell, 2, feed space, 3, compression chamber, 4, sealing cover, 5, air inlet pipe, 6, casting chamber, 7, level sensing
Instrument, 8, liquid level transfinite valve, 9, liquid level upper limit valve, 10, liquid level lower limit valve, 11, strand, 12, crystallizer, 13, inductor, 14, go out
Fluid apertures, 15, adjustment block.
Specific implementation mode
As shown in FIG. 1, FIG. 1 is a kind of casting holding furnaces based on PLC control system disclosed by the invention, have response
Speed is fast, stable and reliable in work, reproducible, small power consumption, contamination resistance are strong, small, simple in structure, light-weight, technique
Property it is good, and can directly connect with the ends PC carry out field adjustable, meet well production needs.
Referring to Fig.1, Fig. 2, a kind of casting holding furnace based on PLC control system proposed by the present invention, including controller,
Shell 1 is provided with feed space 2, compression chamber 3, casting chamber 6, the inductor for detecting liquid parameter in holding furnace in shell 1
13, feed space 2, compression chamber 3 and casting chamber 6 unicom successively；
The top of feed space 2 is provided with the first chute for receiving the liquid in smelting furnace, first chute and into
Expect that room 2 seals unicom；
The top of compression chamber 3 is provided with sealing cover 4 and conveys the air inlet pipe 5 of inert gas into compression chamber 3, sealing cover 4 with
Compression chamber 3 is tightly connected by sealing ring, and air inlet pipe 5 passes through sealing cover 4 to enter in compression chamber 3, is provided with and is used in air inlet pipe 5
The pressure-regulating valve of the inert gas flow is controlled, inlays and is provided with for detecting gas in compression chamber 3 on 3 inner wall of compression chamber
The pressure sensor of pressure；
It is provided with the Level meter 7 for detecting liquid level position in casting chamber 6 in casting chamber 6, is set on Level meter 7
It is equipped with the position travel switch that adjustment inert gas enters the gas pressure of balancing gate pit 3, the position travel switch includes distance
The liquid level that liquid levels are set gradually from the distant to the near transfinites valve 8, liquid level upper limit valve 9 and liquid level lower limit valve 10, and 6 side of casting chamber is set
It is equipped with fluid hole 14, strand 11 is provided in fluid hole 14,11 outer surface of strand is surrounded with crystallizer 12, and fluid hole 14 exists
One end far from casting chamber 6 is provided with the adjustment block 15 for adjusting 12 position of crystallizer, and 14 side of fluid hole, which is provided with, to be used for
The reversal valve of exhaust；
The controller, as main control unit, and by fuzzy PID algorithm, adjusts each casting using programmable controller
The dynamic process at required pressure switching point is made, the detection signal acquisition of pressure is passed through telecommunications by the pressure sensor
Number form is transferred to the controller；
The furnace building material of holding furnace includes the refractory material and energy that can be born high temperature and reduce slag and molten metal infiltration
Block hot-fluid transmit heat-barrier material, the WDS nanometer micropore heat-barrier materials that the heat-barrier material is, the WDS nanometer micropores every
Hot material is made of silica crystals and iron；The inert gas is neon.
The digital valve that stepper motor directly drives is provided in inductor 13, when the controller for controlling the digital valve processed
When sending out control signal, stepper motor rotates and the ball-screw by being set in the stepper motor makes the stepper motor
Rotational angle displacement be converted to the straight-line displacement of spool plate washer, so that the valve port of inductor 13 is gradually turned on and off, stepper motor
Rotate certain aperture that certain angle is equivalent to digital valve.
The controller transfinites with inductor 13, liquid level valve 8, liquid level upper limit valve 9 and liquid level lower limit valve 10, the pressure respectively
Force regulating valve, pressure sensor signal connection.The controller includes control panel and PLC control system, the control
Panel includes control interface and control button, and the control interface includes starting-up interface, input port display interface, output port
Display interface, parameter setting interface and alert interface.
In normal work, compression chamber 3 is passed through inert gas by air inlet pipe 5 and 3 pressure of compression chamber is increased, and then makes
The liquid level of casting chamber 6 and feed space 2 raises simultaneously, and vice versa.The position of liquid level shows by Level meter 7, liquid level
Contact on detector 7 is respectively equipped with three position travel switches, and respectively liquid level transfinites under valve 8, liquid level upper limit valve 9 and liquid level
Valve 10 is limited, liquid level transfinites valve 8, liquid level upper limit valve 9 and liquid level lower limit valve 10 all with output switch parameter.When liquid level normal fluctuation
The liquid level upper limit or lower limit can be touched, there is switching value electric signal output, by PLC formed up and down limit-type control, come control into
Enter the gas pressure value of pressure chamber.Liquid levels are allowed to be fluctuated between bound.With the rising of pressurizing chamber gas pressure, charging
The liquid levels of room 2 and casting chamber 6 can rise simultaneously, if liquid levels transfinite when failure, touching liquid level transfinites valve 8, controller
Control control reversal valve is exhausted or is changed to be manually operated.
Inductor 13 makees controller using PLC, and for stepping motor as electromechanical converter, PLC sends out required pulse sequence
Row, make stepping motor work after stepper motor driver amplifies, and each pulse makes stepping motor be rotated along assigned direction
One fixes step angle, then so that corner is converted to digital valve pressure spring decrement by mechanical transducer (eccentric mechanism), right
The set pressure loss amount for answering valve, to realize the adjusting and control of pressure in work.
Transfinite valve 8, liquid level upper limit valve 9 and liquid level lower limit valve 10 of liquid level is reached using the method for position formula control and automatically controls
Purpose, that is, controller control sensor 13 is passed through with regular hour rate when Level meter 7 reaches lower limit
Pilot stage digital valve adds pulse signal, simulates an analog output signal with the digital form of a stepped change to reach pressure
The purpose for forcing liquid levels to rise is gradually increased, stops adding pulse to believe to digital valve when Level meter 7 reaches upper limit
Number, make digital valve keep the amount of opening for reaching the upper moment constant to maintain on-load pressure at this time constant, until under liquid level
Drop to lower position.After liquid level drops to lower position, control system repeats above-mentioned loading procedure.When loading procedure so that copper liquid
When face reaches upper limit, if the inert gas into holding furnace is generated thermal expansion by high temperature and caused in compression chamber 3 on liquid level
Pressure when continuing to increase, the liquid level in casting chamber 6 is possible to overflow shell 1 and cause danger.Pulse signal can be sent out with PLC
The reversal valve that control is set to crystallizer 12 is discontinuously opened and closed, and the hot-air of extra expanded by heating is quickly discharged, makes build-up of fluid
Onto the position of safety, this mode is repeated with programming to ensure that liquid level fluctuates between upper and lower limit.When needing liquid feeding body fluid
Or when replacing crystallizer, is converted to manual mode button and reverse impulse control signal is applied to digital valve, while interval is opened and changed
To valve exhaust, furnace pressure is reduced to realize the purpose of liquid level decline.After the completion of above-mentioned work, manual mode pressurization makes liquid level
Reach lower limit and is converted to automatic running.
Signal connection includes wired connection, is wirelessly connected；Wired connection includes broadband connection, optical fiber connection；It is wirelessly connected
Including WIFI connections, radio connection.
In conclusion a kind of casting holding furnace based on PLC control system provided in structure of the invention, has response
Speed is fast, stable and reliable in work, reproducible, small power consumption, contamination resistance are strong, small, simple in structure, light-weight, technique
Property it is good, and can directly connect with the ends PC and carry out field adjustable, meet production needs well, there is good economic effect
Benefit, the load capacity of PLC itself is strong, input and output ensure that system has certain anti-interference ability, use using optical coupling
Fuzzy-adaptation PID control holding furnace pressure, takes optimal fitting, to make the heat preservation furnace pressure of casting machine control and can be missed in minimum system
Control is realized under the premise of difference, ensure that the reliability of casting, improves the quality for ensureing casting；Holding furnace uses WDS nanometers
Room furnace wall temperature is kept to decline 8.5 DEG C relative to conventional vacuum stove after micropore heat-barrier material, thermal discharge reduces 0.1kW/m2, add
Pressure chamber furnace wall temperature declines 7.2 DEG C, and thermal discharge reduces 0.09kW/m2, energy consumption is not only saved, the row of pollutant is reduced
It puts, and improves the stability of temperature in holding furnace, reduce the possibility that casting generates defect.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of casting holding furnace based on PLC control system, which is characterized in that including controller, shell (1), shell (1)
In be provided with feed space (2), compression chamber (3), casting chamber (6), the inductor (13) for detecting liquid parameter in holding furnace, into
Expect room (2), compression chamber (3) and casting chamber (6) unicom successively；
The first chute for receiving the liquid in smelting furnace, first chute and charging are provided with above feed space (2)
Room (2) seals unicom；
It is provided with sealing cover (4) above compression chamber (3) and conveys the air inlet pipe (5) of inert gas, sealing cover in compression chamber (3)
(4) it is tightly connected by sealing ring with compression chamber (3), air inlet pipe (5) passes through sealing cover (4) to enter in compression chamber (3), air inlet pipe
(5) it is provided with the pressure-regulating valve for controlling the inert gas flow on, inlays to be provided on compression chamber (3) inner wall and is used for
Detect the pressure sensor of gas pressure in compression chamber (3)；
The Level meter (7) for detecting liquid level position in casting chamber (6), Level meter (7) are provided in casting chamber (6)
On be provided with the position travel switch for adjusting the gas pressure that the inert gas enters balancing gate pit (3), the position stroke is opened
Pass includes transfiniting valve (8), liquid level upper limit valve (9) and liquid level lower limit valve by the liquid level set gradually from the distant to the near apart from liquid levels
(10), casting chamber (6) side is provided with fluid hole (14), and strand (11), strand (11) outer surface are provided in fluid hole (14)
It is surrounded with crystallizer (12), fluid hole (14) is provided in one end far from casting chamber (6) for adjusting crystallizer (12)
The adjustment block (15) of position, fluid hole (14) side are provided with the reversal valve for exhaust；
The controller, as main control unit, and by fuzzy PID algorithm, adjusts each casting institute using programmable controller
The detection signal acquisition of pressure is passed through electric signal shape by the dynamic process at pressure switching point needed, the pressure sensor
Formula is transferred to the controller.
2. the casting holding furnace according to claim 1 based on PLC control system, which is characterized in that inductor (13)
In be provided with the digital valve that stepper motor directly drives, when the controller for controlling the digital valve sends out control signal,
Stepper motor rotates and the ball-screw by being set in the stepper motor makes the rotational angle displacement of the stepper motor turn
It is changed to the straight-line displacement of spool plate washer, the valve port of inductor (13) is made gradually to be turned on and off, the rotational angle phase of stepper motor
It is proportionate with the aperture of digital valve.
3. the casting holding furnace according to claim 1 based on PLC control system, which is characterized in that the controller
Transfinite respectively with inductor (13), liquid level valve (8), liquid level upper limit valve (9) and liquid level lower limit valve (10), the pressure-regulating valve,
The pressure sensor signal connection.
4. the casting holding furnace according to claim 1 based on PLC control system, which is characterized in that feed space (2),
Covering prevents the graphite flakes of liquid oxidation above liquid in compression chamber (3) and casting chamber (6).
5. the casting holding furnace according to claim 1 based on PLC control system, which is characterized in that holding furnace is built
Stove material includes the refractory material that can be born high temperature and reduce slag and molten metal infiltration, and can block the heat-insulated of hot-fluid transmission
Material, the heat-barrier material are WDS nanometer micropore heat-barrier materials, and the WDS nanometer micropores heat-barrier material is by silica crystals
It is formed with iron, the inert gas is neon.
6. the casting holding furnace according to claim 1 based on PLC control system, which is characterized in that the controller
Including control panel and PLC control system, the control panel includes control interface and control button, and the control interface includes
Starting-up interface, input port display interface, output port display interface, parameter setting interface and alert interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110599.2A CN108436067A (en) | 2018-02-05 | 2018-02-05 | A kind of casting holding furnace based on PLC control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110599.2A CN108436067A (en) | 2018-02-05 | 2018-02-05 | A kind of casting holding furnace based on PLC control system |
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| Publication Number | Publication Date |
|---|---|
| CN108436067A true CN108436067A (en) | 2018-08-24 |
Family
ID=63191591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810110599.2A Pending CN108436067A (en) | 2018-02-05 | 2018-02-05 | A kind of casting holding furnace based on PLC control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108436067A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317654A (en) * | 2018-11-13 | 2019-02-12 | 杨福荣 | A kind of high accurate casting equipment of copper industry processing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108453A (en) * | 1988-10-14 | 1990-04-20 | Hirochiku:Kk | Device for controlling molten metal surface in pressurized pouring furnace |
-
2018
- 2018-02-05 CN CN201810110599.2A patent/CN108436067A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108453A (en) * | 1988-10-14 | 1990-04-20 | Hirochiku:Kk | Device for controlling molten metal surface in pressurized pouring furnace |
Non-Patent Citations (3)
| Title |
|---|
| 张晓枫等: "气压控制***在铜连铸保温炉铸造腔液面控制中的应用", 工业加热 * |
| 李文森;: "低压铸造机械PLC控制***研究", 铸造技术 * |
| 肖榕等: "高性能隔热材料在低压铸造保温炉中的研究和应用", 铸造设备与工艺 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317654A (en) * | 2018-11-13 | 2019-02-12 | 杨福荣 | A kind of high accurate casting equipment of copper industry processing |
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Application publication date: 20180824 |
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