CN106807906A - Amorphous alloy strips thickness intelligent controlling device and control method - Google Patents
Amorphous alloy strips thickness intelligent controlling device and control method Download PDFInfo
- Publication number
- CN106807906A CN106807906A CN201710186137.4A CN201710186137A CN106807906A CN 106807906 A CN106807906 A CN 106807906A CN 201710186137 A CN201710186137 A CN 201710186137A CN 106807906 A CN106807906 A CN 106807906A
- Authority
- CN
- China
- Prior art keywords
- thickness
- spray bag
- adjustment
- control
- cooling copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/188—Controlling or regulating processes or operations for pouring responsive to thickness of solidified shell
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a kind of amorphous alloy strips thickness intelligent controlling device and control method,Including cooling copper roller,Molten steel spray bag is provided with above cooling copper roller,The band side that goes out of cooling copper roller is provided with take-up pulley,Molten steel spray bag is arranged in spray bag adjustment frame,Spray bag adjustment frame on be provided with adjustment molten steel spray bag with cooling copper roll spacing from spray bag adjust servomotor,Pinch roller and thickness measurement online device are installed between cooling copper roller and take-up pulley,Thickness measurement online device is connected with data processing unit,The control signal output of data processing unit is connected online measuring thickness device with the control end of spray bag adjustment servomotor,The thickness of amorphous band is measured in real time,Detection data of the data processing unit according to thickness measurement online device,Control spray bag adjustment servomotor forward or reverse,So as to the gap between the nozzle and cooling copper roller that adjust molten steel spray bag,Reach the purpose of adjustment thickness of amorphous strip.
Description
Technical field
It is anti-the present invention relates to a kind of thickness of amorphous strip adjusting apparatus, more particularly to a kind of online tape thickness closed loop of amorphous band
Feedback and control device, further relate to control method corresponding with the control device.
Background technology
Non-crystaline amorphous metal refer to material from liquid (or gaseous state) rapidly cool down when, protected in room temperature or low temperature because having little time crystallization
The state of aggregation that liquid atomic is disorderly arranged is stayed, its atom is but a kind of long no longer in long-range order, periodicity and regularly arranged
The disorderly arranged state of journey.This non-crystaline amorphous metal has the performance of many uniquenesses.Fe-based amorphous alloy be by 80%Fe and 20%Si,
B metalloid elements are constituted, and with high saturated magnetic induction, the aspect such as magnetic conductivity, exciting curent and iron loss is better than silicon steel
The characteristics of piece, particularly iron loss, are low (being the 1/3-1/5 of grain-oriented Si steel sheet), do distribution transformer instead of silicon steel and can save energy 60-
70%.
Amorphous band lamination coefficient is the leading indicator for weighing strip quality, and the lamination coefficient of current amorphous band is in 0.8-
0.89.During spray band, there is different degrees of expansion in cooling copper roller with the nozzle of molten steel spray bag, to maintain thickness of strip
Uniformity, reduces band both sides deviation, it is necessary to carry out real-time adjustment to the gap between cooling copper roller and spray belt bag nozzle, realizes
Band thickness measuring adjusts the closed-loop control of private dress system with spray bag.
The content of the invention
A technical problem to be solved by this invention is to provide a kind of thickness of strip information that can be obtained according to measurement,
Adjustment spray band parameter, adjusts thickness of strip, reduces band deviation, improves the amorphous alloy strips thickness intelligence of band lamination coefficient
Control device.
In order to solve the above technical problems, the technical scheme is that：Amorphous alloy strips thickness intelligent controlling device, bag
Cooling copper roller is included, molten steel spray bag is provided with above the cooling copper roller, the band side that goes out of the cooling copper roller is provided with take-up
Wheel, the molten steel spray bag is arranged in spray bag adjustment frame, and the adjustment molten steel spray bag and institute are provided with the spray bag adjustment frame
State cooling copper roll spacing from spray bag adjust servomotor, be provided between the cooling copper roller and the take-up pulley pinch roller and
Line measuring thickness device, the thickness measurement online device is connected with data processing unit, the control signal output of the data processing unit
Hold and be connected with the control end of the spray bag adjustment servomotor.
As a kind of perferred technical scheme, the thickness measurement online device includes the ray for measuring thickness of amorphous strip
Calibrator, the both sides of the gamma thickness gage are separately installed with the tensioning wheel for maintaining amorphous band parallel.
As a kind of perferred technical scheme, the data processing unit includes the data output with the gamma thickness gage
The PLC expansion modules of connection, the PLC expansion modules is held to be connected with PLC main control modules, the control letter of the PLC main control modules
Number output end is connected with the control end of the spray bag adjustment servomotor, and the PLC expansion modules are connected with touch screen control module.
As a kind of perferred technical scheme, the touch screen control module includes touch display screen, the touch display screen
On be provided with MANUAL CONTROL mode button and automatic control mode button.
By adopting the above-described technical solution, amorphous alloy strips thickness intelligent controlling device, including cooling copper roller, it is described
Molten steel spray bag is provided with above cooling copper roller, the band side that goes out of the cooling copper roller is provided with take-up pulley, the molten steel spray bag
In spray bag adjustment frame, be provided with the spray bag adjustment frame adjustment molten steel spray bag and the cooling copper roll spacing from
Spray bag adjustment servomotor, is provided with pinch roller and thickness measurement online device between the cooling copper roller and the take-up pulley, described
Thickness measurement online device is connected with data processing unit, the control signal output of the data processing unit and the spray bag adjustment
The control end connection of servomotor；The thickness of thickness measurement online device real-time detection amorphous band, data processing unit is according to online
The detection data of measuring thickness device, control spray bag adjustment servomotor forward or reverse so that adjust molten steel spray bag nozzle with it is cold
But the gap between copper roller, reaches the purpose of adjustment thickness of amorphous strip；The present invention is not changing belt spraying machine overall structure and control
On the premise of framework processed, band parameter is sprayed using close-loop control mode adjust automatically, reduce amorphous band deviation, improve amorphous band
Lamination coefficient.
Another technical problem to be solved by this invention is to provide a kind of thickness of strip letter that can be obtained according to measurement
Breath, adjustment spray band parameter, adjusts thickness of strip, reduces band deviation, improves the amorphous alloy strips thickness of band lamination coefficient
Intelligent control method.
In order to solve the above technical problems, the technical scheme is that：Amorphous alloy strips thickness intelligent control method, bag
Include following step：
, be wound into band on take-up pulley using negative pressure of vacuum Grasp Modes by step one, and setting is moved to after take-up pulley is slow
Position, then drives pinch roller and thickness measurement online device into；
Step 2, thickness measurement online device sends the data of detection to data processing unit；
Step 3, data processing unit provides feedback signal according to preset value, and setting value includes thickness of strip, deviation
Amount, control instruction is sent to the control end of spray bag adjustment servomotor；
Step 4, the umber of pulse of adjustment spray bag adjustment motor servo driver and direction enable signal, spray bag adjustment servo
Motor forward or reverse, the distance between adjustment molten steel spray bag nozzle and cooling copper roller, by thickness of strip control in claimed range
It is interior.
As a kind of perferred technical scheme, the thickness measurement online device includes the ray for measuring thickness of amorphous strip
Calibrator, the both sides of the gamma thickness gage are separately installed with the tensioning wheel for maintaining amorphous band parallel.
As a kind of perferred technical scheme, the data processing unit includes the data output with the gamma thickness gage
The PLC expansion modules of connection, the PLC expansion modules is held to be connected with PLC main control modules, the control letter of the PLC main control modules
Number output end is connected with the control end of the spray bag adjustment servomotor, and the PLC expansion modules are connected with touch screen control module.
This method detects thickness of strip by gamma thickness gage, and thickness signal is delivered into PLC expansion modules, is extended through PLC
Display is controlled by touch screen after resume module, and feedback signal is provided according to preset value, setting value includes thickness of strip, deviation
Amount, PLC main control modules are delivered to by feedback signal, send control instruction, and adjustment motor servo driver umber of pulse and direction enable
Signal, spray bag adjustment private takes motor action (forward or reverse), and most thickness of strip is controlled in claimed range at last.
Brief description of the drawings
The following drawings is only intended to, in schematic illustration and explanation is done to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the structural representation of the embodiment of the present invention；
In figure：11- cools down copper roller；12- molten steel spray bag；2- take-up pulleys；3- amorphous bands；4- pinch rollers；51- thickness measurements with ray
Instrument；52- tensioning wheels；61- sprays bag adjustment frame；62- spray bag adjustment servomotors.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is expanded on further.In the following detailed description, only by explanation
Mode describes some one exemplary embodiments of the invention.Undoubtedly, one of ordinary skill in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, described embodiment can be repaiied with a variety of modes
Just.Therefore, accompanying drawing and description are inherently illustrative, are not intended to limit the scope of the claims.
As shown in figure 1, amorphous alloy strips thickness intelligent controlling device, including cooling copper roller 11, the cooling copper roller 11
Top be provided with molten steel spray bag 12, the band side that goes out of the cooling copper roller 11 is provided with take-up pulley 2, and the molten steel spray bag 12 is pacified
In spray bag adjustment frame 61, the adjustment molten steel spray bag 12 and the cooling copper roller 11 are installed in the spray bag adjustment frame 61
The spray bag adjustment servomotor 62 of distance, the clutch end of spray bag adjustment servomotor 62 is connected with screw rod, screw rod with it is described
Spray bag adjustment frame 61 is threadedly coupled；Pinch roller and thickness measurement online dress are installed between the cooling copper roller 11 and the take-up pulley 2
Put, thickness measurement online device described in 44 includes the gamma thickness gage 51 for measuring the thickness of amorphous band 3, the gamma thickness gage 51
Both sides be separately installed with tensioning wheel 52 for maintaining amorphous band 3 parallel；The thickness measurement online device is connected with data
Reason unit, the data processing unit includes the PLC expansion modules being connected with the data output end of the gamma thickness gage 51, institute
State PLC expansion modules and be connected with PLC main control modules, the control signal output of the PLC main control modules and the spray bag adjustment
The control end connection of servomotor 62, the PLC expansion modules are connected with touch screen control module, and the touch screen control module includes
Touch display screen, is provided with MANUAL CONTROL mode button and automatic control mode button in the touch display screen；The data
The control signal output of processing unit is connected with the control end of the spray bag adjustment servomotor 62.PLC expansion modules and PLC
Main control module uses prior art, repeats no more here.
Go out band position using the change cooling copper of pinch roller 4 roller 11, improve parcel time of the band on cooling copper roller 11；
Two purposes of tensioning wheel 52 are to make amorphous band 3 parallel, and have certain tensioning, shake are prevented, in order to line measuring thickness device
Measurement.Data processing unit controls the spray bag adjustment forward or reverse of servomotor 62 according to the detection data of thickness measurement online device,
So as to the gap between the nozzle and cooling copper roller 11 that adjust molten steel spray bag 12, the purpose of the adjustment thickness of amorphous band 3 is reached；
PLC main control modules and PLC expansion modules collection On-line gauging system data, show, with setup parameter after calculating treatment through touch screen
Compare calculating, form feedback signal, after being processed through PLC expansion modules and PLC main control modules, motor is taken to spray bag adjustment private and is sent
Control instruction, adjustment cools down the depth of parallelism of the spacing of copper roller 11 and molten steel spray 12 nozzles of bag, adjustment copper roller axial direction and nozzle, and then
The physical dimension of band is adjusted, thickness of strip uniformity is improved, band deviation is reduced.
The present invention is adjusted automatically on the premise of belt spraying machine overall structure and control framework is not changed using close-loop control mode
Whole spray band parameter, reduces the deviation of amorphous band 3, improves the lamination coefficient of amorphous band 3.Control device of the present invention can be according to setting
Fixed thickness of strip and the deviation requirement on band both sides, it is timely automated or manually adjust spray band parameter, to maintain amorphous band 3 thick
The uniformity of degree, reduces band both sides deviation, improves the lamination coefficient of amorphous band 3.
Amorphous alloy strips thickness intelligent control method, comprises the steps：
, be wound into band on take-up pulley 2 using negative pressure of vacuum Grasp Modes by step one, is moved to after take-up pulley 2 is slow and set
Positioning is put, and then drives pinch roller and thickness measurement online device into；
The thickness measurement online device includes the gamma thickness gage 51 for measuring the thickness of amorphous band 3, the thickness measurement with ray
The both sides of instrument 51 are separately installed with the tensioning wheel 52 for maintaining amorphous band 3 parallel；
Step 2, thickness measurement online device sends the data of detection to data processing unit；
The data processing unit includes the PLC expansion modules being connected with the data output end of the gamma thickness gage 51,
The PLC expansion modules are connected with PLC main control modules, and the control signal output of the PLC main control modules is adjusted with the spray bag
The control end connection of whole servomotor 62, the PLC expansion modules are connected with touch screen control module；
Step 3, data processing unit provides feedback signal according to preset value, and setting value includes thickness of strip, deviation
Amount, control instruction is sent to the control end of spray bag adjustment servomotor 62；
Step 4, the umber of pulse of the adjustment spray bag adjustment driver of servomotor 62 and direction enable signal, and spray bag adjustment is watched
The forward or reverse of motor 62 is taken, the distance between adjustment molten steel spray 12 nozzles of bag and cooling copper roller 11 exist thickness of strip control
In claimed range.
This method detects thickness of strip by gamma thickness gage 51, and thickness signal is delivered into PLC expansion modules, expands through PLC
Controlled by touch screen to show after exhibition resume module, and feedback signal is provided according to preset value, setting value includes thickness of strip, partially
Residual quantity, PLC main control modules are delivered to by feedback signal, send control instruction, and adjustment motor servo driver umber of pulse and direction make
Energy signal, spray bag adjustment private takes motor action (forward or reverse), and most thickness of strip is controlled in claimed range at last.
As shown in figure 1, being surveyed by molten steel spray bag 12, cooling copper roller 11,4, two tensioning wheels 52 of pinch roller, take-up pulley 2, ray
Thick instrument 51 and corresponding control system composition belt spraying machine and automatic band-retracting system.12 built-in molten iron temperature 1350- of molten steel spray bag
1380 DEG C, liquid level 350-450mm, under gravity, the molten iron of melting is mapped to rotation at a high speed, inside from nozzle and leads to
Have on the copper roller of cooling water, copper roller linear velocity is 20-25m/s, molten iron after becoming band, is passed through after cooling down the fast cooling of copper roller 11
High pressure strip gas are peeled off, and band is wound on take-up pulley 2 using negative pressure of vacuum Grasp Modes, are moved to after take-up pulley 2 is slow
Setting position, then drives pinch roller 4 and thickness measurement online device into.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (7)
1. amorphous alloy strips thickness intelligent controlling device, including cooling copper roller, molten steel is provided with above the cooling copper roller
Spray bag, the band side that goes out of the cooling copper roller is provided with take-up pulley, it is characterised in that：The molten steel spray bag is arranged on spray bag adjustment
On frame, be provided with the spray bag adjustment frame adjustment molten steel spray bag and the cooling copper roll spacing from spray bag adjustment servo electricity
Machine, is provided with pinch roller and thickness measurement online device between the cooling copper roller and the take-up pulley, the thickness measurement online device connects
Data processing unit is connected to, the control signal output of the data processing unit adjusts the control of servomotor with the spray bag
End connection.
2. amorphous alloy strips thickness intelligent controlling device as claimed in claim 1, it is characterised in that：The thickness measurement online dress
Put including the gamma thickness gage for measuring thickness of amorphous strip, the both sides of the gamma thickness gage are separately installed with for maintaining
The parallel tensioning wheel of amorphous band.
3. amorphous alloy strips thickness intelligent controlling device as claimed in claim 1, it is characterised in that：The data processing list
Unit includes the PLC expansion modules being connected with the data output end of the gamma thickness gage, and the PLC expansion modules are connected with PLC
Main control module, the control signal output of the PLC main control modules is connected with the control end of the spray bag adjustment servomotor, institute
State PLC expansion modules and be connected with touch screen control module.
4. amorphous alloy strips thickness intelligent controlling device as claimed in claim 3, it is characterised in that：The touch screen controls mould
Block includes touch display screen, and MANUAL CONTROL mode button and automatic control mode button are provided with the touch display screen.
5. the control method of the amorphous alloy strips thickness intelligent controlling device being based on described in claim 1, it is characterised in that bag
Include following step：
, be wound into band on take-up pulley using negative pressure of vacuum Grasp Modes by step one, and setting position is moved to after take-up pulley is slow,
Then drive pinch roller and thickness measurement online device into；
Step 2, thickness measurement online device sends the data of detection to data processing unit；
Step 3, data processing unit provides feedback signal according to preset value, and setting value includes thickness of strip, departure,
Control instruction is sent to the control end of spray bag adjustment servomotor；
Step 4, the umber of pulse of adjustment spray bag adjustment motor servo driver and direction enable signal, spray bag adjustment servomotor
Forward or reverse, the distance between adjustment molten steel spray bag nozzle and cooling copper roller, by thickness of strip control in claimed range.
6. amorphous alloy strips thickness intelligent control method as claimed in claim 5, it is characterised in that：The thickness measurement online dress
Put including the gamma thickness gage for measuring thickness of amorphous strip, the both sides of the gamma thickness gage are separately installed with for maintaining
The parallel tensioning wheel of amorphous band.
7. amorphous alloy strips thickness intelligent control method as claimed in claim 5, it is characterised in that：The data processing list
Unit includes the PLC expansion modules being connected with the data output end of the gamma thickness gage, and the PLC expansion modules are connected with PLC
Main control module, the control signal output of the PLC main control modules is connected with the control end of the spray bag adjustment servomotor, institute
State PLC expansion modules and be connected with touch screen control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186137.4A CN106807906A (en) | 2017-03-27 | 2017-03-27 | Amorphous alloy strips thickness intelligent controlling device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710186137.4A CN106807906A (en) | 2017-03-27 | 2017-03-27 | Amorphous alloy strips thickness intelligent controlling device and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106807906A true CN106807906A (en) | 2017-06-09 |
Family
ID=59115591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710186137.4A Withdrawn CN106807906A (en) | 2017-03-27 | 2017-03-27 | Amorphous alloy strips thickness intelligent controlling device and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106807906A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284249A (en) * | 2018-04-04 | 2018-07-17 | 上海日港置信非晶体金属有限公司 | Amorphous alloy core shear forming auxiliary device and assistant formation method |
| CN108856290A (en) * | 2018-06-12 | 2018-11-23 | 无锡华玉铝业有限公司 | Three connect cold-rolling mill automatic production line |
| CN109365766A (en) * | 2018-12-25 | 2019-02-22 | 锦州同创真空冶金科技有限公司 | A kind of automation amorphous pressure tape producing apparatus and method |
| CN109502385A (en) * | 2018-12-25 | 2019-03-22 | 锦州同创真空冶金科技有限公司 | A kind of amorphous band automatic coiling apparatus |
| CN110125353A (en) * | 2019-05-17 | 2019-08-16 | 山东电亮亮信息科技有限公司 | Large capacity nano-crystalline thin ribbon production system |
| CN113104626A (en) * | 2021-05-12 | 2021-07-13 | 株洲宜安新材料研发有限公司 | Winding equipment for amorphous alloy thin strip |
-
2017
- 2017-03-27 CN CN201710186137.4A patent/CN106807906A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284249A (en) * | 2018-04-04 | 2018-07-17 | 上海日港置信非晶体金属有限公司 | Amorphous alloy core shear forming auxiliary device and assistant formation method |
| CN108284249B (en) * | 2018-04-04 | 2023-09-12 | 上海日港置信非晶体金属有限公司 | Amorphous alloy iron core shearing forming auxiliary device and auxiliary forming method |
| CN108856290A (en) * | 2018-06-12 | 2018-11-23 | 无锡华玉铝业有限公司 | Three connect cold-rolling mill automatic production line |
| CN109365766A (en) * | 2018-12-25 | 2019-02-22 | 锦州同创真空冶金科技有限公司 | A kind of automation amorphous pressure tape producing apparatus and method |
| CN109502385A (en) * | 2018-12-25 | 2019-03-22 | 锦州同创真空冶金科技有限公司 | A kind of amorphous band automatic coiling apparatus |
| CN110125353A (en) * | 2019-05-17 | 2019-08-16 | 山东电亮亮信息科技有限公司 | Large capacity nano-crystalline thin ribbon production system |
| CN113104626A (en) * | 2021-05-12 | 2021-07-13 | 株洲宜安新材料研发有限公司 | Winding equipment for amorphous alloy thin strip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106807906A (en) | Amorphous alloy strips thickness intelligent controlling device and control method | |
| CN101020197B (en) | Intelligent no-mold drawing formation apparatus and process | |
| CN102730461B (en) | Large package control equipment for coiling organic membrane and method | |
| CN103182491B (en) | A kind of free loops by thin-strip continuous casting control method and device | |
| JP6991232B2 (en) | Combined continuous casting and metal strip hot rolling plant | |
| CN109896326A (en) | Retractable volume system tension control device and its control method based on motion controller | |
| CN206652948U (en) | Amorphous alloy strip thickness intelligent controlling device | |
| CN106413930A (en) | Energy consumption predicting device for rolling line | |
| CN203448434U (en) | Copper strip rewinding unit | |
| CN103611735A (en) | Laminar cooling temperature monitoring method and device | |
| CN103753805B (en) | A kind of large-scale global function rubber roll is wound around surface coating machine | |
| CN104338752B (en) | A kind of length control method during Varying-thickness rolling | |
| CN108677002A (en) | A kind of stove internal tension compensating control method suitable for tandem rolling Horizental annealer | |
| US10464112B2 (en) | Energy-saving control device for rolling line | |
| CN104561517B (en) | Strip oscillatory temperature degree differentiation method for annealing and device | |
| CN107685141B (en) | A kind of continuous caster driving roller control method | |
| CN103412140B (en) | A kind of amorphous band convoluting speed measuring system and method | |
| CN102994933B (en) | Soldering strip production line | |
| CN106548845A (en) | Improve the method that amorphous band produces product quality | |
| CN205205189U (en) | Numerical control steel wire induction heat treatment production system | |
| CN109534051A (en) | Production system for processing film | |
| CN202180078U (en) | Small precision metal foil cold-rolling mill | |
| CN106825466A (en) | The method for improving amorphous band product lamination coefficient | |
| CN203600604U (en) | Novel plastic film blowing device | |
| CN202164432U (en) | Compound device of non-woven fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170609 |