CN108870970B - A kind of electromagnetic welding furnace temperature control terminal - Google Patents
A kind of electromagnetic welding furnace temperature control terminal Download PDFInfo
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- CN108870970B CN108870970B CN201810762651.2A CN201810762651A CN108870970B CN 108870970 B CN108870970 B CN 108870970B CN 201810762651 A CN201810762651 A CN 201810762651A CN 108870970 B CN108870970 B CN 108870970B
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- 238000003466 welding Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 57
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 61
- 239000002184 metal Substances 0.000 abstract description 61
- 230000010259 detection of temperature stimulus Effects 0.000 abstract description 2
- 230000003116 impacting effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 238000003723 Smelting Methods 0.000 description 16
- 230000006698 induction Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000010309 melting process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Induction Heating (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention discloses a kind of electromagnetic welding furnace temperature control terminals, it include: detection unit, the first judging unit, second judgment unit, the first meter unit, the second computing unit and control unit, the detection unit, the first judging unit, second judgment unit, the first meter unit, the second computing unit and control unit are successively electrically connected；This terminal carries out the detection of temperature to the metal object in electromagnetism furnace crucible, then it is compared according to the temperature range with the preset metal, and contrast difference, electromagnetic frequency is changed according to difference, it can prevent metal object from impacting because too high or too low for temperature in this way, and the wasting of resources can be reduced, do not have to manual operation, saves human cost.
Description
Technical field
The present invention relates to industrial smelting furnace control technology field more particularly to a kind of electromagnetic welding furnace temperature control terminals.
Background technique
Aluminum melting zinc-melting furnace be typically all use electromagnetism smelting furnace because electromagnetism smelting furnace can not only energy conservation and environmental protection, and heat
Speed can improve be much heating method outside widely used resistance ring type now best substitute products.
In to metal melting process, an electromagnetism smelting furnace may melt different metals, the height of temperature
There is very big influence again on metal melting, due to metal difference, the fusing point melted is also different, in metal melt process
In, it needs operator to keep and carries out monitoring temperature beside electromagnetism smelting furnace, winter is not bad, to summer, can make to staff
At very big actual bodily harm.
Summary of the invention
In view of this, a kind of electromagnetic welding furnace temperature control terminal of the invention.
A kind of electromagnetic welding furnace temperature control terminal, terminal include: detection unit, the first judging unit, second judgment unit, first
Count unit, the second computing unit and control unit, the detection unit, the first judging unit, second judgment unit, the first meter
Unit, the second computing unit and control unit are successively electrically connected；
Detection unit, for detecting furnace crucible temperature；
First judging unit, for judging bath temperature whether in default range；
Second judgment unit, if it is pre- to judge whether bath temperature is higher than not in default range for bath temperature
If range；
First meter unit calculates among molten bath degree temperature and preset range if being not higher than preset range for bath temperature
The difference of value；
Second computing unit for calculating electromagnetic frequency and increasing frequency size according to size of the difference, and carries out increasing frequency；
Control unit works for controlling this frequency.
Preferably, first judging unit is also electrically connected at control unit, and first judging unit is judged to melt
When pond temperature is in default range, control unit controls this frequency and continues work.
Preferably, the terminal further includes third computing unit, and the third computing unit and second judgment unit are electrical
Connection, when the second judgment unit judges that bath temperature is higher than preset range, third computing unit calculates molten bath degree temperature
With the difference of preset range median.
Preferably, the terminal further includes the 4th computing unit, and the 4th computing unit and third computing unit are electrical
Connection, the size of the difference that the 4th computing unit is calculated according to third computing unit calculate electromagnetic frequency and subtract frequency size, and carry out
Subtract frequency.
Preferably, the 4th computing unit is also electrically connected at control unit, and the 4th computing unit calculates electricity
Magnet rate subtracts frequency size, and after subtracting frequency, control unit controls the work of this frequency.
Preferably, the furnace crucible temperature is the temperature of fusant in molten bath.
The beneficial effects of the present invention are: a kind of electromagnetic welding furnace temperature control terminal of the invention, this terminal are molten to electromagnetism smelting furnace
Metal object in pond carries out the detection of temperature, is then compared according to the temperature range with the preset metal, and contrast
Difference is changed electromagnetic frequency according to difference, can prevent metal object from impacting because too high or too low for temperature in this way, and
The wasting of resources can be reduced, manual operation is not had to, saves human cost.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of electromagnetic welding furnace temperature control method embodiment 1；
Fig. 2 is a kind of flow chart of electromagnetic welding furnace temperature control method embodiment 2；
Fig. 3 is a kind of block diagram representation of electromagnetic welding furnace temperature control terminal embodiment 1；
Fig. 4 is a kind of block diagram representation of electromagnetic welding furnace temperature control terminal embodiment 2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
Please refer to Fig. 1, a kind of flow chart of electromagnetic welding furnace temperature control method embodiment 1, a kind of electromagnetic welding furnace temperature control method, side
Method includes:
S11 detects furnace crucible temperature；In electromagnetism smelting furnace to being thrown toward furnace crucible
Metal charge, then induction coil is powered, and by electromagnetic induction to METAL HEATING PROCESS, so that metal melting, general induction coil all may be used
Not have to contact with metal object to be melted；Due to being non-contact heating, general molten metal surface temperature can be seen as molten
Melt the true temperature of metal object；Furnace crucible temperature is detected, the temperature of molten metal object is exactly detected, wherein when being detected,
It is metal is not contacted using infrared thermometer many times since general thermometer is not resistant to so high temperature
Object, as long as the surface of infrared radiation to metal object can be carried out temperature detection to metal object.
Whether S12 judges bath temperature in default range；Such as: metallic aluminium, fusing point are 660 DEG C, can be preset
Temperature range is 670-680 DEG C, is compared by the temperature of the metal object in detection furnace crucible with preset range, works as detection
Temperature when being 665 DEG C, then may determine that bath temperature not in default range；It, then can be with when the temperature of detection is 674 DEG C
Judge bath temperature in default range；When detection temperature be 686 DEG C, then may determine that bath temperature not in preset model
In enclosing；During electromagnetism smelting furnace is worked, preset temperature range can be carried out according to its molten metal type
Adjustment.
S13, if bath temperature judges whether bath temperature is higher than preset range not in default range；Work as detection
Furnace crucible temperature not in preset temperature range, then need to judge whether bath temperature is higher than preset range again；Example
Such as: metallic iron, fusing point be 1535 DEG C, can with preset temperature range be 1550-1560 DEG C, when the temperature of detection be 1540 DEG C when,
It then may determine that bath temperature not in default range；When detection temperature be 1555 DEG C, then may determine that bath temperature exists
In default range；When the temperature of detection is 1567 DEG C, then it may determine that bath temperature not in default range；So no
In preset temperature range, it may be possible to which the temperature value of detection is big compared with the maximum value of preset temperature range, it is also possible to be more default
The minimum value of temperature range is small, so wanting whether further progress bath temperature is higher than the judgement of preset range.
S14 calculates the difference of molten bath degree temperature and preset range median if bath temperature is not higher than preset range；Example
Such as: metallic iron, fusing point be 1535 DEG C, can with preset temperature range be 1550-1560 DEG C, when the temperature detected be 1543 DEG C,
Then judge that bath temperature not higher than preset range, molten bath degree temperature is calculated with preset range median, preset temperature model
Enclosing for 1550-1560 DEG C of medium temperature is 1555 DEG C, then difference is 1555-1543=12, and difference is the absolute value that two numbers subtract each other.
S15 calculates electromagnetic frequency and increases frequency size according to size of the difference, and carries out increasing frequency；It is big according to the difference of calculating
It is small, it may also be said to it is the size of absolute value, calculates electromagnetic frequency and increase frequency size, such as: the frequency of existing induction coil is
300HZ, it is f=kb that setting, which increases frequency and the relationship of difference, and wherein f is to increase frequency, and k is difference, and b is coefficient, works as k=100, b=
0.4, then f=40, then need to increase frequency 40, i.e., frequency become 340HZ.
S16 controls this frequency and works；It after frequency is converted, then controls the frequency and works, until temperature
It is changed again, then carries out frequency conversion.
Please refer to Fig. 2, a kind of flow chart of electromagnetic welding furnace temperature control method embodiment 2, a kind of electromagnetic welding furnace temperature control method, side
Method includes:
S21 detects furnace crucible temperature；In electromagnetism smelting furnace to being thrown toward furnace crucible
Metal charge, then induction coil is powered, and by electromagnetic induction to METAL HEATING PROCESS, so that metal melting, general induction coil all may be used
Not have to contact with metal object to be melted；Due to being non-contact heating, general molten metal surface temperature can be seen as molten
Melt the true temperature of metal object；Furnace crucible temperature is detected, the temperature of molten metal object is exactly detected, wherein when being detected,
It is metal is not contacted using infrared thermometer many times since general thermometer is not resistant to so high temperature
Object, as long as the surface of infrared radiation to metal object can be carried out temperature detection to metal object.
Whether S22 judges bath temperature in default range；Such as: metallic aluminium, fusing point are 660 DEG C, can be preset
Temperature range is 670-680 DEG C, is compared by the temperature of the metal object in detection furnace crucible with preset range, works as detection
Temperature when being 665 DEG C, then may determine that bath temperature not in default range；It, then can be with when the temperature of detection is 674 DEG C
Judge bath temperature in default range；When detection temperature be 686 DEG C, then may determine that bath temperature not in preset model
In enclosing；During electromagnetism smelting furnace is worked, preset temperature range can be carried out according to its molten metal type
Adjustment.
S23, if bath temperature judges whether bath temperature is higher than preset range not in default range；Work as detection
Furnace crucible temperature not in preset temperature range, then need to judge whether bath temperature is higher than preset range again；Example
Such as: metallic iron, fusing point be 1535 DEG C, can with preset temperature range be 1550-1560 DEG C, when the temperature of detection be 1540 DEG C when,
It then may determine that bath temperature not in default range；When detection temperature be 1555 DEG C, then may determine that bath temperature exists
In default range；When the temperature of detection is 1567 DEG C, then it may determine that bath temperature not in default range；So no
In preset temperature range, it may be possible to which the temperature value of detection is big compared with the maximum value of preset temperature range, it is also possible to be more default
The minimum value of temperature range is small, so wanting whether further progress bath temperature is higher than the judgement of preset range.
S24 calculates the difference of molten bath degree temperature and preset range median if bath temperature is not higher than preset range；Example
Such as: metallic iron, fusing point be 1535 DEG C, can with preset temperature range be 1550-1560 DEG C, when the temperature detected be 1543 DEG C,
Then judge that bath temperature not higher than preset range, molten bath degree temperature is calculated with preset range median, preset temperature model
Enclosing for 1550-1560 DEG C of medium temperature is 1555 DEG C, then difference is 1555-1543=12, and difference is the absolute value that two numbers subtract each other.
S25 calculates electromagnetic frequency and increases frequency size according to size of the difference, and carries out increasing frequency；It is big according to the difference of calculating
It is small, it may also be said to it is the size of absolute value, calculates electromagnetic frequency and increase frequency size, such as: the frequency of existing induction coil is
300HZ, it is f=kb that setting, which increases frequency and the relationship of difference, and wherein f is to increase frequency, and k is difference, and b is coefficient, works as k=100, b=
0.4, then f=40, then need to increase frequency 40, i.e., frequency become 340HZ.
S26 calculates the difference of bath temperature Yu preset range median；If bath temperature is higher than preset range, calculate
The difference of molten bath degree temperature and preset range median out；Such as: metallic iron, fusing point are 1535 DEG C, can be with preset temperature range
1550-1560 DEG C, when the temperature detected be 1568 DEG C, then judge bath temperature be higher than preset range, to molten bath degree temperature with
Preset range median is calculated, and preset temperature range is that 1550-1560 DEG C of medium temperature is 1555 DEG C, then difference is
1568-1555=13, difference are the absolute value that two numbers subtract each other.
S27 calculates electromagnetic frequency and subtracts frequency size according to size of the difference, and carries out subtracting frequency；According to size of the difference, calculate
Electromagnetic frequency increases frequency size out, and carries out subtracting frequency；According to the size of the difference of calculating, it may also be said to be the size of absolute value, calculate
Electromagnetic frequency increases frequency size, such as: the frequency of existing induction coil is 300HZ, and it is f=that setting, which increases frequency and the relationship of difference,
Kb, wherein f is to increase frequency, and k is difference, and b is coefficient, works as k=100, b=0.4, then f=40, then needs to subtract frequency 40, i.e., by frequency
Become 260HZ.
S28 controls this frequency and works；When the temperature of detection is in preset temperature range, then the working frequency is kept
Work, after being increased frequency or being reduced, then keeps transformed frequency, then controls the frequency and work, until
Temperature is changed again, then carries out frequency conversion.
Fig. 3 is please referred to, Fig. 3 is a kind of block diagram representation of electromagnetic welding furnace temperature control terminal embodiment 1；A kind of electromagnetic welding furnace temperature
Control terminal, terminal 300 include: detection unit 31, the first judging unit 32, the meter unit 34, second of second judgment unit 33, first
Computing unit 35 and control unit 36, detection unit 31, the first judging unit 32, second judgment unit 33, first count unit
34, the second computing unit 35 and control unit 36 are successively electrically connected, and the first judging unit and control unit are electrically connected,
In；
Detection unit 31, for detecting furnace crucible temperature；In electromagnetism smelting furnace in metal melting process, being all toward smelting furnace
Molten bath carries out throwing metal charge, and then induction coil is powered, by electromagnetic induction to METAL HEATING PROCESS, so that metal melting, general to feel
Answer coil that can not have to contact with metal object to be melted；Due to being non-contact heating, general molten metal surface temperature
To see the true temperature of molten metal object as；Furnace crucible temperature is detected, the temperature of molten metal object is exactly detected, wherein
It is using infrared thermometer, i.e., many times since general thermometer is not resistant to so high temperature when being detected
Metal object is not contacted, as long as the surface of infrared radiation to metal object can be carried out temperature detection to metal object.
First judging unit 32, for judging bath temperature whether in default range；Such as: metallic aluminium, fusing point
Be 660 DEG C, can with preset temperature range be 670-680 DEG C, by detection furnace crucible in metal object temperature and default model
It encloses and is compared, when the temperature of detection is 665 DEG C, then may determine that bath temperature not in default range；When detection
Temperature is 674 DEG C, then may determine that bath temperature in default range；When detection temperature be 686 DEG C, then may determine that molten
Pond temperature is not in default range；It, can be right according to its molten metal type during electromagnetism smelting furnace is worked
Preset temperature range is adjusted.
Second judgment unit 33, if judging whether bath temperature is higher than not in default range for bath temperature
Preset range；When the furnace crucible temperature of detection is not in preset temperature range, then need whether to judge bath temperature again
Higher than preset range；Such as: metallic iron, fusing point are 1535 DEG C, can be with preset temperature range for 1550-1560 DEG C, when detection
When temperature is 1540 DEG C, then it may determine that bath temperature not in default range；It, then can be with when the temperature of detection is 1555 DEG C
Judge bath temperature in default range；When detection temperature be 1567 DEG C, then may determine that bath temperature not preset
In range；So not in preset temperature range, it may be possible to the temperature value of detection is big compared with the maximum value of preset temperature range,
It is likely to be small compared with the minimum value of preset temperature range, so wanting whether further progress bath temperature is higher than sentencing for preset range
It is disconnected.
First meter unit 34 calculates in molten bath degree temperature and preset range if being not higher than preset range for bath temperature
Between the difference that is worth；Such as: metallic iron, fusing point are 1535 DEG C, can be with preset temperature range for 1550-1560 DEG C, when what is detected
Temperature is 1543 DEG C, then judges that not higher than preset range, molten bath degree temperature is counted with preset range median for bath temperature
It calculates, preset temperature range is that 1550-1560 DEG C of medium temperature is 1555 DEG C, then difference is 1555-1543=12, and difference is two numbers
The absolute value subtracted each other.
Second computing unit 35 for calculating electromagnetic frequency and increasing frequency size according to size of the difference, and carries out increasing frequency；Root
According to the size of the difference of calculating, it may also be said to it is the size of absolute value, calculates electromagnetic frequency and increase frequency size, such as: existing induction
The frequency of coil is 300HZ, and it is f=kb that setting, which increases frequency and the relationship of difference, and wherein f is to increase frequency, and k is difference, and b is coefficient, works as k
=100, b=0.4, then f=40, then need to increase frequency 40, i.e., frequency become 340HZ.
Control unit 36 works for controlling this frequency；First judging unit 32 judges bath temperature default
When in range, controls frequency work or after frequency converted, then control the frequency and work, until temperature is again
It is changed, then carries out frequency conversion.
Fig. 4 is please referred to, Fig. 4 is a kind of block diagram representation of electromagnetic welding furnace temperature control terminal embodiment 2；A kind of electromagnetic welding furnace temperature
Control terminal, terminal 400 include: detection unit 41, the first judging unit 42, the meter unit 44, second of second judgment unit 43, first
Computing unit 45, third computing unit 46, the 4th computing unit 47 and control unit 48, the judgement of detection unit 41, first are single
Member 42, second judgment unit 43, first are counted unit 44, the second computing unit 45 and control unit 48 and are successively electrically connected, the
Three computing units 46 and the 4th computing unit 47 are electrically connected, and third computing unit 46 also electrically connects with second judgment unit 42
It connecing, the 4th computing unit 47 is electrically connected with control unit 48, and the first judging unit 42 is electrically connected with control unit 48,
In；
Detection unit 41, for detecting furnace crucible temperature；In electromagnetism smelting furnace in metal melting process, being all toward smelting furnace
Molten bath carries out throwing metal charge, and then induction coil is powered, by electromagnetic induction to METAL HEATING PROCESS, so that metal melting, general to feel
Answer coil that can not have to contact with metal object to be melted；Due to being non-contact heating, general molten metal surface temperature
To see the true temperature of molten metal object as；Furnace crucible temperature is detected, the temperature of molten metal object is exactly detected, wherein
It is using infrared thermometer, i.e., many times since general thermometer is not resistant to so high temperature when being detected
Metal object is not contacted, as long as the surface of infrared radiation to metal object can be carried out temperature detection to metal object.
First judging unit 42, for judging bath temperature whether in default range；Such as: metallic aluminium, fusing point
Be 660 DEG C, can with preset temperature range be 670-680 DEG C, by detection furnace crucible in metal object temperature and default model
It encloses and is compared, when the temperature of detection is 665 DEG C, then may determine that bath temperature not in default range；When detection
Temperature is 674 DEG C, then may determine that bath temperature in default range；When detection temperature be 686 DEG C, then may determine that molten
Pond temperature is not in default range；It, can be right according to its molten metal type during electromagnetism smelting furnace is worked
Preset temperature range is adjusted.
Second judgment unit 43, if judging whether bath temperature is higher than not in default range for bath temperature
Preset range；When the furnace crucible temperature of detection is not in preset temperature range, then need whether to judge bath temperature again
Higher than preset range；Such as: metallic iron, fusing point are 1535 DEG C, can be with preset temperature range for 1550-1560 DEG C, when detection
When temperature is 1540 DEG C, then it may determine that bath temperature not in default range；It, then can be with when the temperature of detection is 1555 DEG C
Judge bath temperature in default range；When detection temperature be 1567 DEG C, then may determine that bath temperature not preset
In range；So not in preset temperature range, it may be possible to the temperature value of detection is big compared with the maximum value of preset temperature range,
It is likely to be small compared with the minimum value of preset temperature range, so wanting whether further progress bath temperature is higher than sentencing for preset range
It is disconnected.
First meter unit 44 calculates in molten bath degree temperature and preset range if being not higher than preset range for bath temperature
Between the difference that is worth；Such as: metallic iron, fusing point are 1535 DEG C, can be with preset temperature range for 1550-1560 DEG C, when what is detected
Temperature is 1543 DEG C, then judges that not higher than preset range, molten bath degree temperature is counted with preset range median for bath temperature
It calculates, preset temperature range is that 1550-1560 DEG C of medium temperature is 1555 DEG C, then difference is 1555-1543=12, and difference is two numbers
The absolute value subtracted each other.
Second computing unit 45 for calculating electromagnetic frequency and increasing frequency size according to size of the difference, and carries out increasing frequency；Root
According to the size of the difference of calculating, it may also be said to it is the size of absolute value, calculates electromagnetic frequency and increase frequency size, such as: existing induction
The frequency of coil is 300HZ, and it is f=kb that setting, which increases frequency and the relationship of difference, and wherein f is to increase frequency, and k is difference, and b is coefficient, works as k
=100, b=0.4, then f=40, then need to increase frequency 40, i.e., frequency become 340HZ.
Third computing unit 46, for calculating the difference of bath temperature Yu preset range median；If bath temperature is high
In preset range, the difference of molten bath degree temperature and preset range median is calculated；Such as: metallic iron, fusing point are 1535 DEG C, can be with
Preset temperature range is 1550-1560 DEG C, when the temperature detected is 1568 DEG C, then judges that bath temperature is higher than default model
It encloses, molten bath degree temperature is calculated with preset range median, preset temperature range is that 1550-1560 DEG C of medium temperature is 1555
DEG C, then difference is 1568-1555=13, and difference is the absolute value that two numbers subtract each other.
4th computing unit 47 for calculating electromagnetic frequency and subtracting frequency size according to size of the difference, and carries out subtracting frequency；Root
It according to size of the difference, calculates electromagnetic frequency and increases frequency size, and carry out subtracting frequency；According to the size of the difference of calculating, it may also be said to be exhausted
To the size of value, calculates electromagnetic frequency and increase frequency size, such as: the frequency of existing induction coil is 300HZ, and setting increases frequency and difference
The relationship of value is f=kb, and wherein f is to increase frequency, and k is difference, and b is coefficient, works as k=100, b=0.4, then f=40, then needs to subtract
Frequently 40, i.e., frequency is become into 260HZ.
Control unit 48 controls this frequency and works；When the temperature of detection is in preset temperature range, then the work is kept
Working frequency work, after being increased frequency or being reduced, then keeps transformed frequency, then controls the frequency and carry out work
Make, until temperature is changed again, then carries out frequency conversion.
Embodiments described above is only schematical, the embodiment of the present invention can according to actual needs progress sequence
It adjusts, merge and deletes.
This programme is described in detail in embodiment, and specific case used herein is to structural principle of the invention
And embodiment is expounded, above embodiments are merely used to help understand method and its core concept of the invention；Meanwhile
For those of ordinary skill in the art, according to the thought of the present invention, has change in specific embodiments and applications
Become place, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (1)
1. a kind of electromagnetic welding furnace temperature control terminal, which is characterized in that the terminal includes: detection unit, the first judging unit, second
Judging unit, the first meter unit, the second computing unit and control unit, the detection unit, the first judging unit, second are sentenced
Disconnected unit, the first meter unit, the second computing unit and control unit are successively electrically connected；
Detection unit, for detecting furnace crucible temperature；
First judging unit, for judging bath temperature whether in default range；
Second judgment unit, if judging whether bath temperature is higher than default model not in default range for bath temperature
It encloses；
First meter unit calculates molten bath degree temperature and preset range median if being not higher than preset range for bath temperature
Difference；
Second computing unit for calculating electromagnetic frequency and increasing frequency size according to size of the difference, and carries out increasing frequency；According to calculating
Size of the difference, calculate electromagnetic frequency increase frequency size；
Third computing unit, the third computing unit and second judgment unit are electrically connected, for calculate bath temperature with
The difference of preset range median；If bath temperature is higher than preset range, molten bath degree temperature and preset range median are calculated
Difference；Difference is the absolute value that two numbers subtract each other；
4th computing unit, the 4th computing unit and third computing unit are electrically connected, for calculating according to size of the difference
Electromagnetic frequency subtracts frequency size out, and carries out subtracting frequency；It according to size of the difference, calculates electromagnetic frequency and increases frequency size, and carry out subtracting frequency；
According to the size of the difference of calculating, calculates electromagnetic frequency and increase frequency size；
Control unit works for controlling this frequency；When the temperature of detection is in preset temperature range, then the work is kept
Frequency work, after being increased frequency or being reduced, then keeps transformed frequency, then controls the frequency and work,
Until temperature is changed again, then carry out frequency conversion；
First judging unit is also electrically connected at control unit, and first judging unit judges bath temperature default
In the range of when, control unit controls this frequency and continues work；
The furnace crucible temperature is the temperature of fusant in molten bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762651.2A CN108870970B (en) | 2018-07-12 | 2018-07-12 | A kind of electromagnetic welding furnace temperature control terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762651.2A CN108870970B (en) | 2018-07-12 | 2018-07-12 | A kind of electromagnetic welding furnace temperature control terminal |
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| CN108870970B true CN108870970B (en) | 2019-09-27 |
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| CN202024601U (en) * | 2010-12-10 | 2011-11-02 | 龙吉林 | High-frequency electromagnetic induction heating device for industrial metal furnace |
| CN202511619U (en) * | 2012-03-19 | 2012-10-31 | 天津市滨海电器有限公司 | System for controlling tin melting furnace |
| CN106658807B (en) * | 2017-01-18 | 2019-08-16 | 广东美的厨房电器制造有限公司 | Method for heating and controlling, device and microwave oven |
| CN107228573B (en) * | 2017-06-15 | 2019-04-26 | 佛山市高捷工业炉有限公司 | A kind of industrial smelting furnace stirring means and its terminal |
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Denomination of invention: A temperature control terminal for electromagnetic furnace Effective date of registration: 20210830 Granted publication date: 20190927 Pledgee: Industrial Commercial Bank of China Ltd. Weicheng Weifang branch Pledgor: WEIFANG DINGSHENG ELECTRICAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980008552 |
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Address after: 261052 East of Gongye 5th Road, north of Changqing Street, Junbukou Comprehensive Project Area, Weicheng District, Weifang City, Shandong Province Patentee after: Shandong Dingsheng Electrical Technology Co.,Ltd. Address before: 261052 East of Gongye 5th Road, north of Changqing Street, Junbukou Comprehensive Project Area, Weicheng District, Weifang City, Shandong Province Patentee before: WEIFANG DINGSHENG ELECTRICAL TECHNOLOGY Co.,Ltd. |
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