CN107245750A - A kind of copper bar continuous tin plating production line - Google Patents
A kind of copper bar continuous tin plating production line Download PDFInfo
- Publication number
- CN107245750A CN107245750A CN201710590518.9A CN201710590518A CN107245750A CN 107245750 A CN107245750 A CN 107245750A CN 201710590518 A CN201710590518 A CN 201710590518A CN 107245750 A CN107245750 A CN 107245750A
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- China
- Prior art keywords
- tin plating
- copper bar
- unit
- cleaning
- degreasing
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- Pending
Links
- 238000007747 plating Methods 0.000 title claims abstract description 71
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 67
- 239000010949 copper Substances 0.000 title claims abstract description 67
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000005406 washing Methods 0.000 claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims abstract description 38
- 238000005238 degreasing Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 238000005554 pickling Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims description 4
- 210000005056 cell body Anatomy 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000035611 feeding Effects 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/30—Electroplating: Baths therefor from solutions of tin
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention relates to tin plating technical field, especially a kind of copper bar continuous tin plating production line, tin plating part upper end is provided with waste gas aspiration channel, is connected with exhaust gas treating tower and carries out purified treatment, the lower end of tin plating part is provided with waste pipe, is connected with water treatment system and carries out purified treatment；Feeding transport portion, which includes, to be put into rickstand by the copper bar after drawing, automatic moves bin and feeding turns over row's roller-conveying device, tin plating part includes the cleaning by degreasing unit being sequentially connected, three-level washing unit I, pickling pretreatment unit, three-level washing unit II, at least one tin plating unit, three-level washing unit III, thermal cleaning unit and hot blast drying case, tin plating efficiency high；Coating is uniform, careful, smooth, smooth；Adhesive force is strong, and corrosion resistance and solderability are good；Due to thermal cleaning, pretreatment and it is tin plating be in the closed state, to be configured with waste gas, wastewater treatment equipment, it is environmentally safe, greatly improve working environment；Automaticity is high.
Description
Technical field
The present invention relates to tin plating technical field, especially a kind of copper bar continuous tin plating production line.
Background technology
Copper bar is, as carrier is conductively connected, to there is a large amount of extensive uses for electrician, electric power, electric industrial circle,
There are a large amount of extensive uses.To prevent the oxidation of copper bar, conductance is improved, coating is carried out to copper bar surface or connecting portion.Copper
Arrange surface oxidation-resistant surface treatment automatic production line：By arranging on automatically, entering row, ultrasonic degreasing, cleaning, electrolytic degreasing, painting
Plate, clean, drying up, the row's of turning over pile, paving barrier paper etc., it is automatic to carry out.
Automatic assembly line combines the production line constituted by mechanical part and coating part, changes old tin plating technique
Defect and deficiency, the production line are worked under the situation of closing, and the water of cleaning process can be recycled, and micro waste gas can be received
Collection processing.The discharge without waste water and waste gas compared with old technique.Because production process is continuous moving, overlay coating, color and luster,
Brightness is uniform, changes the big defect of the coating of current unevenness, shade deviation in rack plating.Mechanical part reduces work by a relatively large margin
Intensity and safety production environment.
The content of the invention
The technical problem to be solved in the present invention is：There is provided a kind of tin plating efficiency high, coating for the deficiency for overcoming in the prior art
Uniformly, careful, smooth, smooth, adhesive force is strong, corrosion resistance and the good copper bar continuous tin plating production line of solderability.
The technical solution adopted for the present invention to solve the technical problems is：A kind of copper bar continuous tin plating production line, with from
Feeding transport portion, tin plating part and blanking windrow part are set gradually from left to right, and described tin plating part upper end is provided with
Waste gas aspiration channel, waste gas aspiration channel is connected with exhaust gas treating tower and carries out purified treatment, and the lower end of tin plating part is provided with waste water
Pipeline, waste pipe is connected with water treatment system and carries out purified treatment；
The feeding transport portion include by needed after drawing carry out electroplating surfaces with tin copper bar be put into rickstand, from
The copper bar that dynamic shifting bin and feeding are turned on row's roller-conveying device, the rickstand is moved on to copper bar by moving bin automatically
Expect on the row's of turning over roller-conveying device and copper bar is edge-on, feeding turns over row's roller-conveying device and edge-on copper bar is sent into tin plating dress
Put；
The blanking windrow part includes turning device, blanking roller-conveying device and material stocking device, the blanking
The row's of turning over roller-conveying device will complete tin plating copper bar and is laid flat by turning device and the copper bar after being laid flat be slipped into material stocking device
And be transferred from finished product by loop wheel machine.
It is pre- that the tin plating part includes the cleaning by degreasing unit being sequentially connected from left to right, three-level washing unit I, pickling
Processing unit, three-level washing unit II, at least one tin plating unit, three-level washing unit III, thermal cleaning unit and hot blast blow
Feed device, cleaning by degreasing unit, three-level washing unit I, pickling are installed at dry case, the charging aperture of the cleaning by degreasing unit
The discharging opening that pretreatment unit, three-level wash unit III, thermal cleaning unit and hot blast drying case is mounted on passive feeding dress
Put, the discharging opening of three-level washing unit II and tin plating unit, which is provided with passive feed device I, passive feed device I, connects cloudy
Pole pole plate simultaneously allows cathode current on the copper bar band passed through, and cathode plate is connected with power cathode.
Further, in order to carry out two road electrolytic degreasings, oil removing to copper bar, described cleaning by degreasing unit includes sink
And degreasing tank, the left end of the sink is provided with feed device, and copper bar feeding sink is carried out ungrease treatment by feed device,
Degreasing tank carries out being provided with passive feed device on the right side of oil removal treatment, sink and degreasing tank to the copper bar after degreasing.
Further, in order to carry out the cleaning of copper bar surface slight oxidation thing in tin plating take a step forward, it is ensured that copper bar enters
Surface cleaning during plating, described pickling pretreatment unit includes pretreatment tank, and it is light that the pretreatment tank carries out surface to copper bar
The cleaning of low-level oxidation, the rear and front end of the pretreatment tank is equipped with return flume, and the bottom of return flume passes through return pipe and setting
Electrode water washing cylinder in pretreatment tank lower end is connected, and the bottom of pretreatment tank is provided with the water inlet pipe being connected with electrode water washing cylinder.
Further, it is tin plating using three sections of progress in order to ensure electroplating efficiency and plating uniformity, the thickness of coating, institute
The tin plating unit stated, which includes, is at least provided with a plate, plate in plane on pot, the cell body of pot
It is connected with positive source, the lower end of pot is provided with heat exchanger and tin plating liquid storage cylinder, heat exchanger and plating for refrigeration
Tin liquid storage cylinder is connected by pipeline with pot respectively.
Further, in order to ensure the cleaning on copper bar surface, described three-level washing unit I, three-level washing unit II with
And three-level washing unit III includes rinsing bowl, the copper bar after processing is carried out cleaning treatment, the washing by the rinsing bowl
The rear and front end of groove is equipped with return flume II, and the bottom of return flume II is washed by return pipe with being arranged on the three-level of rinsing bowl lower end
Cylinder is connected, and the bottom of rinsing bowl is provided with the water inlet pipe being connected with three-level water washing cylinder.
Further, the rear and front end of described sink and degreasing tank is mounted on returning on return flume I, return flume I
Water pipe is connected with the washing tank installed in sink lower end, and sink and oil removing trench bottom are connected by water inlet pipe and washing tank
Connect.
The beneficial effects of the invention are as follows：1) the tin plating efficiency high of the present invention；2) coating is uniform, careful, smooth, smooth；3) it is attached
Put forth effort strong, corrosion resistance and solderability are good；4) due to thermal cleaning, pretreatment and it is tin plating be to carry out in the closed state, it is and supporting
There are waste gas, wastewater treatment equipment, it is environmentally safe, greatly improve working environment；5) automaticity is high.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the fore-end structural representation of the present invention；
Fig. 2 is the center section structural representation of the present invention；
Fig. 3 is the tail portion structural representation of the present invention；
Fig. 4 is Fig. 1 top view；
Fig. 5 is Fig. 2 top view；
Fig. 6 is Fig. 3 top view；
Fig. 7 is the schematic diagram of the water treatment system of the present invention.
1. waste gas aspiration channel in figure, 2. exhaust gas treating towers, 3. water treatment systems, 4. rickstands, 5. move on bins, 6. automatically
Expect the row's of turning over roller-conveying device, 7. sinks, 8. degreasing tanks, 10. feed devices, 11. passive feed devices, 12. passive feedings
Device I, 13. turning devices, 14. blanking roller-conveying devices, 15. material stocking devices, 16. pretreatment tanks, 17. pots, 18. heat
Exchanger, 19. tin plating liquid storage cylinders, 20. rinsing bowls, 21. return flumes, 22. electrode water washing cylinders, 23. return flumes II, 24. tertiary effluents
Wash cylinder, 25. return flumes I, 26. washing tanks.
Embodiment
Presently in connection with accompanying drawing and preferred embodiment, the present invention is further illustrated.These accompanying drawings are simplified signal
Figure, only illustrates the basic structure of the present invention in a schematic way, therefore it only shows the composition relevant with the present invention.
A kind of copper bar continuous tin plating production line as shown in Fig. 1~7, mainly moves bin, feeding by rickstand 4, automatically and turns over
Arrange roller-conveying device, cleaning by degreasing unit, three-level washing unit I, pickling pretreatment unit, three-level washing unit II, tin plating
Unit, three-level washing unit III, thermal cleaning unit, hot blast drying case, turn over arranging device 13, blanking rollgang 14, material stocking device
15th, the auxiliary equipment such as exhaust gas treating tower and water treatment system is constituted.
First, the copper bar for needing to carry out electroplating surfaces with tin after drawing is put into rickstand, by moving the vacuum on bin automatically
Sucker suck and move on to feeding turns over row roller-conveying device 6, the copper bar kept flat is automatically edge-on, and rollgang be fed into it is tin plating
Partial cleaning by degreasing unit.
After the feed device 10 of cleaning by degreasing unit is connected to sensor signal, the passive feeding deflector roll in feed device 10
Step up automatically with active-feeding deflector roll, conveyed to front haulage, and carry out two road electrolytic degreasings, oil removing and three-level cleaning, complete clear
Wash process.
Pickling pretreatment unit, three-level washing unit II are to carry out copper bar surface slight oxidation thing for tin plating take a step forward
Cleaning and tertiary effluent are rinsed, and are further ensured that surface cleaning when copper bar enters plating, and passive feed device I connects with cathode power
Connect, cathode current on copper bar band；
Copper bar with cathode current enters tin plating three sections of progress of unit, that segmentation is carried out primarily to ensureing plating effect
Rate and plating uniformity, the thickness of coating；
After plating clean, be by three-level wash unit III will plate apply during the surface raffinate that band comes from pot 17
Mild acid wash neutralize；Thermal cleaning section, is the raffinate that surface comes from the middle band of pot 17 during further plating is applied
Mild acid wash is neutralized, and copper bar is maintained certain temperature, so that rear road is dried up.
To remove the subsidiary moisture content in surface after tin-coated copper draining cleaning, blown using hot blast, dry main method, exclude copper bar surface
Moisture content, it is to avoid surface is easily adhered dust and other impurities.
The tin plating copper bar of completion is delivered to blanking windrow and is partially completed after conveying, and turning device 13 puts edge-on copper bar
Flat, and slip on rubber pulley material stocking device 15, material stocking device 15 can be according to the thickness of copper bar, and often inputting a copper bar can root
Be automatically adjusted the height at splicing position according to setting numerical value, it is ensured that finished product copper bar slip into during impulsive force in minimum zone
It is interior, prevent damage.
The application is controlled using electric control system simultaneously, and electric control system is by switch board 1, control box 2.
Operating system point plating applies part and mechanical part.Plating, which applies every section of part, draw-gear, and draw-gear is connect by photoelectric sensor
By with send signal, be operated.Electrical control cubicles can set the electric current of coating bath, voltage and ensure that equipment and production technology are normally carried out.
In process of production due to volatile matter containing trace acidic in pot 17, a small amount of acid mist can be produced after heating, is passed through
After waste gas aspiration channel 1 is collected, it is delivered to exhaust gas treating tower 2 and carries out purified treatment, it is to avoid pollution environment.
It is defeated by waste pipe due to solution containing trace acidic in the rinse water after pickling pretreatment unit and tin plating unit
Deliver to water treatment system and carry out purified treatment, it is to avoid pollution environment.
Production process is as follows：
Copper bar continuous tin plating production line, is that rickstand 4 is pushed outwardly by cylinder first, copper bar is lifted on rickstand 4
Air cylinder board and backer between, rickstand 4 resets, on rickstand 4 clamping cylinder clamp, after making copper parallel with rickstand 4 immediately
Unclamp, produce negative pressure through vacuum generator by compressed air, copper bar is adsorbed, by servomotor and ball screw auxiliary driving, by heap
The copper bar of bin 4 moves to feeding and turned on row's roller-conveying device 6, and copper bar is overturn into edge-on → degreasing caustic wash unit → tertiary effluent
Wash the tin plating unit in road of I → pickling of unit pretreatment unit → three-level washing unit II → tri- → three-level washing III → hot water of unit clear
Wash the upset of unit → hot blast drying case → blanking roller-way and be laid flat copper bar → copper bar sideslip discharging to stacker → finished product distancing, herein
During the waste gas that produces, extracted by air intake device and be delivered to exhaust gas treating tower 2 and handle, waste water is delivered to wastewater treatment equipment
Purified, the water after purification can return to rinse bath and be continuing with.
The advantage of this patent is：The defect and deficiency of old tin plating technique are changed, the production line is the situation in closing
Lower work, the water of cleaning process is discharged after can be recycled or being handled through water treatment system, and collection is handled micro waste gas online.
The discharge without waste water and waste gas compared with old technique.Labor intensity and safety production environment are reduced by a relatively large margin.Copper bar is in plating
Traveled at the uniform speed during tin, continuously across processes such as cleaning by degreasing, pretreatment (pickling), cleaning, tin plating, cleaning, hot blast dryings
To complete tin plating work, it therefore, it can carry out under higher current density.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (6)
1. a kind of copper bar continuous tin plating production line, with set gradually from left to right feeding transport portion, tin plating part and under
Stockpile material part, it is characterised in that：Described tin plating part upper end is provided with waste gas aspiration channel (1), and waste gas aspiration channel (1) is with giving up
Gas disposal tower (2) connects and carries out purified treatment, and the lower end of tin plating part is provided with waste pipe, waste pipe and water process system
System (3) connects and carries out purified treatment；
The feeding transport portion include by needed after drawing carry out electroplating surfaces with tin copper bar be put into rickstand (4), from
It is dynamic to move bin (5) and feeding turns over copper bar on row's roller-conveying device (6), the rickstand (4) by moving bin (5) automatically
Copper bar is moved on into feeding and turns on row's roller-conveying device (6) and copper bar is edge-on, feeding turns over row's roller-conveying device (6) will be edge-on
Copper bar be sent to tinning stack；
The blanking windrow part includes turning device (13), blanking roller-conveying device (14) and material stocking device (15),
The blanking is turned over row's roller-conveying device (14) and will completed after tin plating copper bar is laid flat and will be laid flat by turning device (13)
Copper bar slips into material stocking device (14) and is transferred from finished product by loop wheel machine.
The tin plating part includes the cleaning by degreasing unit being sequentially connected from left to right, three-level washing unit I, pickling pretreatment
Unit, three-level washing unit II, at least one tin plating unit, three-level washing unit III, thermal cleaning unit and hot blast drying case,
Feed device (10), cleaning by degreasing unit, three-level washing unit I, pickling are installed at the charging aperture of the cleaning by degreasing unit
The discharging opening that pretreatment unit, three-level wash unit III, thermal cleaning unit and hot blast drying case is mounted on passive feeding dress
Put (11), the discharging opening of three-level washing unit II and tin plating unit is provided with passive feed device I (12), passive feed device I
(12) cathode plate is connected on and cathode current on the copper bar band passed through is allowed, cathode plate is connected with power cathode.
2. a kind of copper bar continuous tin plating production line according to claim 1, it is characterised in that：Described cleaning by degreasing unit
Including sink (7) and degreasing tank (8), the left end of the sink (7) is provided with feed device (10), and feed device (10) will
Copper bar feeding sink (7) carry out ungrease treatment, degreasing tank (8) to after degreasing copper bar carry out oil removal treatment, sink (7) and
Passive feed device (11) is installed on the right side of degreasing tank (8).
3. a kind of copper bar continuous tin plating production line according to claim 1, it is characterised in that：Described pickling pretreatment is single
Member includes pretreatment tank (16), and the pretreatment tank (16) carries out the cleaning of surface slight oxidation, the pretreatment tank to copper bar
(16) rear and front end is equipped with return flume (21), return flume (21) bottom is by return pipe and is arranged on pretreatment tank (16)
Electrode water washing cylinder (22) connection of lower end, the bottom of pretreatment tank (16) is provided with the water inlet pipe being connected with electrode water washing cylinder (22).
4. a kind of copper bar continuous tin plating production line according to claim 1, it is characterised in that：Described tin plating unit includes
Have and a plate is at least installed on pot (17), the cell body of pot (17) in plane, plate and power supply are just
Pole is connected, and the lower end of pot (17) is provided with heat exchanger (18) and tin plating liquid storage cylinder (19) for refrigeration, heat exchanger
(18) connected respectively by pipeline with pot (17) with tin plating liquid storage cylinder (19).
5. a kind of copper bar continuous tin plating production line according to claim 1, it is characterised in that：Described three-level washing unit
Ith, three-level washing unit II and three-level washing unit III include rinsing bowl (20), and the rinsing bowl (20) is by after processing
Copper bar carries out cleaning treatment, and the rear and front end of the rinsing bowl (20) is equipped with return flume II (23), return flume II (23) bottom
Connected by return pipe with being arranged on the three-level water washing cylinder (24) of rinsing bowl (20) lower end, the bottom of rinsing bowl (20) is provided with and three
The water inlet pipe of level water washing cylinder (24) connection.
6. a kind of copper bar continuous tin plating production line according to claim 1, it is characterised in that：Described sink (7) and
Return pipe and be arranged on sink (7) that the rear and front end of degreasing tank (8) is mounted on return flume I (25), return flume I (25)
Washing tank (26) connection of lower end, sink (7) and degreasing tank (8) bottom are connected by water inlet pipe with washing tank (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590518.9A CN107245750A (en) | 2017-07-19 | 2017-07-19 | A kind of copper bar continuous tin plating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590518.9A CN107245750A (en) | 2017-07-19 | 2017-07-19 | A kind of copper bar continuous tin plating production line |
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| Publication Number | Publication Date |
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| CN107245750A true CN107245750A (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710590518.9A Pending CN107245750A (en) | 2017-07-19 | 2017-07-19 | A kind of copper bar continuous tin plating production line |
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Cited By (3)
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| CN108179459A (en) * | 2018-02-24 | 2018-06-19 | 徐善刚 | Copper bar electrolytic tinning slot and the tin plating production equipment of full-automatic copper bar |
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| CN108711545A (en) * | 2017-10-30 | 2018-10-26 | 江苏伯乐达照明电器有限公司 | Neon bulb filament surface handles automatic assembly line |
| CN108179459A (en) * | 2018-02-24 | 2018-06-19 | 徐善刚 | Copper bar electrolytic tinning slot and the tin plating production equipment of full-automatic copper bar |
| CN111270294A (en) * | 2020-03-30 | 2020-06-12 | 江西勇骏实业有限公司 | Tin coating system and tin coating process for copper bus |
| CN111270294B (en) * | 2020-03-30 | 2023-08-25 | 江西勇骏实业有限公司 | Tin coating system and tin coating process of copper bus |
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Application publication date: 20171013 |