CN110526242A - A kind of two-step method graphite calendering device and calendering process - Google Patents
A kind of two-step method graphite calendering device and calendering process Download PDFInfo
- Publication number
- CN110526242A CN110526242A CN201910887186.XA CN201910887186A CN110526242A CN 110526242 A CN110526242 A CN 110526242A CN 201910887186 A CN201910887186 A CN 201910887186A CN 110526242 A CN110526242 A CN 110526242A
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- China
- Prior art keywords
- calendering
- graphite
- release film
- main
- unreeling shaft
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- 238000003490 calendering Methods 0.000 title claims abstract description 115
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 100
- 239000010439 graphite Substances 0.000 title claims abstract description 100
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000008569 process Effects 0.000 title claims abstract description 13
- 241001232787 Epiphragma Species 0.000 claims abstract description 14
- 238000003475 lamination Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 229920002545 silicone oil Polymers 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/205—Preparation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to technical field of material, and in particular to two-step method graphite calendering device and calendering process.The present invention includes main calendering structure, main calendering structure includes graphite unreeling shaft, epiphragma unreeling shaft, main calendering upper roller, epiphragma Scroll, first release film unreeling shaft and main calendering lower roll, it further include the secondary calender lamination mechanism added, secondary fitting calendering structure includes secondary fitting calendering upper roller, graphite Scroll, the winding of first release film, lower roll is rolled in secondary fitting, second release film unreeling shaft and the second servo motor, secondary fitting calendering upper roller is mounted on the discharge end of main calendering structure, main calendering structure is mounted on mounting rack, secondary fitting calendering upper roller passed through roller and the second Serve Motor Control with the secondary gap for being bonded calendering lower roll, second release film unreeling shaft and the winding of the first release film are fixedly mounted on rewinding end.The present invention solves the problems, such as that graphite easily remains on release film, rolls that insufficient, graphite thickness is not up to standard, and structure is simple, easy to use.
Description
Technical field
The invention belongs to technical field of material, and in particular to a kind of two-step method graphite calendering device and calendering process.
Background technique
With the rapid development of artificial synthesized graphite industry, graphite uses the continuous derivative of type kind.To artificial synthesized
The requirement of graphite is also higher and higher.But in graphite sintering procedure, there are many uncontrollable X factors, causes to fire stone
It is bad in many appearances of ink appearance or thickness.These are bad to be reflected directly in graphite calender line.Fire graphite color
Difference and foam thickness super thick will have a direct impact on graphite calendering, and the calendering mode of traditional release film cooperation epiphragma cannot be complete
Problems are solved, irreversible influence is caused on graphite downstream cross cutting industry.
Graphite calendering is the main auxiliary material of graphite of radiating with release film, and effect is graphite film that complement strong pressure is delayed, to increase
Suppress and prolong graphite film strength, with prevent downstream client-cross cutting engineering using when cause the fracture of graphite, and be directed to graphite pressure
Prolong release film and propose following require: a. forms target thickness after calendering, and guarantees graphite bubble-free；B. expandable graphite pressure
It delays, graphite controls in 6.0gf/in the peeling force of release film；C. after rolling, graphite is being die cut the peeling force of release film
To stablize during removing release film.
In the actual production process of heat dissipation graphite film, due to the fluctuation of expandable graphite thickness and the fluctuation of surface quality,
Graphite be will cause to exceeded (the such as larger than 6.0gf/in) of release film peeling force, when will cause graphite film stripping release film when serious
The remaining graphite clast on release film the problems such as, reduces the yield of graphite calendered product and the production of downstream client is caused to be stranded
It disturbs.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of two-step method stone
Black calendering device and calendering process.The present invention uses two step graphite calendering process, and the first step rolls the target thickness to form calendering,
Second step is that the release film of the first step is peeled off to while being enclosed new specific release film to reach light peeling force and good appearance
Target, can be effectively reduced graphite firing fraction defective, it is ensured that the graphite of calendering do not influence cross cutting use, effectively improve artificial conjunction
At the output and utilization rate of graphite.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: two-step method graphite calendering device and calendering side
Method, which is characterized in that the calendering device and calendering process have the feature that
A kind of two-step method graphite calendering device, including main calendering structure, main calendering structure include that graphite unreeling shaft, epiphragma unreel
Axis, main calendering upper roller, epiphragma Scroll, the first release film unreeling shaft and main calendering lower roll further include the secondary calendering patch added
Mechanism is closed, secondary fitting calendering structure includes secondary fitting calendering upper roller, graphite Scroll, the winding of the first release film, secondary patch
Combined pressure prolongs lower roll, the second release film unreeling shaft and the second servo motor, and the secondary fitting calendering upper roller is mounted on main calendering knot
The discharge end of structure, main calendering structure are mounted on mounting rack, and upper roller and the secondary gap for being bonded calendering lower roll are rolled in secondary fitting
By crossing roller and the second Serve Motor Control, the second release film unreeling shaft and the winding of the first release film are fixedly mounted on rewinding end.
First servo motor, drive of the secondary calender lamination mechanism in the second servo motor are provided in the main calendering structure
It is dynamic lower synchronous with first servo motor.
The main calendering structure and secondary calender lamination mechanism are provided with hydraulic structure and gap self-checking device.
The calendering process of the two-step method graphite calendering device, comprising the following steps:
(a) roll for the first time: expandable graphite raw material being fixed on graphite unreeling shaft, the first specific release film is fixed on epiphragma and puts
On spool, PET original film is fixed on the first release film unreeling shaft, by the first specific release film, expandable graphite raw material, PET original film
Make foaming stone by adjusting gap and the calender pressure of up-down rollers also cross the gap of main calendering upper roller and main calendering lower roll
Ink is forced into setting thickness between up-down rollers；
(b) roll for second: the graphite after rolling for the first time in step (a) being passed through into roller, thereafter by PET original film stripping in original
Graphite, and by PET original film garbage collection in the winding of the first release film；Graphite after first specific release film+first time calendering
Secondary calender lamination mechanism is continued through together, and simultaneously with the second specific release film on the second release film unreeling shaft through secondary
Fitting calendering upper roller with it is secondary be bonded roll lower roll be bonded calendering again, after the completion of fitting, by the first specific release film stripping in
Expandable graphite is fitted in expandable graphite successfully on the second specific release film, and winds through graphite Scroll.
First specific release film described in step (a) is located at the graphite upper surface after rolling for the first time.
Calender pressure described in step (a) is 1 ~ 10MPa, and the product thickness of expandable graphite is controlled at 10 ~ 100 μm.
Compared with prior art, the invention has the following advantages that
The present invention will meet calendering graphite thickness requirement, appearance requirement and peeling force for existing step calendering device simultaneously and want
It asks, requires release film very harsh status, propose two-step method graphite calendering process thus to reduce peeling force and reach outer
Sight standard, the i.e. first step roll the target thickness to form calendering, and second step is that the release film of the first step is peeled off while being enclosed
Specific release film reaches the target of light peeling force and good appearance.
(1) first step select the silicone oil release film insensitive to expandable graphite foam thickness and color difference (off-type force 300 ~
500gf/in), make graphite under the pressure effect of main calender system pressure roller, form target thickness, used release film is easy to
Removing, there is the flat appearance degree that final products will not be influenced slight bubble even if on release film；
(2) second step by using the secondary specific silicone oil release film of fitting calender system calender lamination (off-type force 300 ~
500gf/in) reach required peeling force (6.0gf/in or less even 3.5gf/in or less) and appearance standard；
Two-step method calendering device of the invention solves graphite and easily remains on release film, rolls insufficient, graphite thickness and do not reach
Target problem；Release film layer upper surface dust, booty are avoided, structure is simple, easy to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of two-step method graphite calendering device of the present invention.
Fig. 2 is that the material of two-step method graphite calendering device of the present invention moves towards schematic diagram.
Description of symbols: the main calendering structure of 1-；1-1- graphite unreeling shaft；1-2- epiphragma unreeling shaft；In the main calendering of 1-3-
Roller；1-4- epiphragma Scroll；1-5- the first release film unreeling shaft；The main calendering lower roll of 1-6-；1-7- first servo motor；2- bis- times
Calender lamination mechanism；Upper roller is rolled in bis- fittings of 2-1-；2-2- graphite Scroll；The winding of the first release film of 2-3-；2-4- bis- times
Fitting calendering lower roll；2-5- the second release film unreeling shaft；The second servo motor of 2-6-；3- mounting rack；4- crosses roller.
Technical solution of the present invention is described further combined with specific embodiments below.
Specific embodiment
As shown in Figure 1, a kind of two-step method graphite calendering device, including main calendering structure 1, main calendering structure includes that graphite is put
Spool 1-1, epiphragma unreeling shaft 1-2, main calendering upper roller 1-3, epiphragma Scroll 1-4, the first release film unreeling shaft 1-5 and main calendering
Lower roll 1-6, which is characterized in that further include the secondary calender lamination mechanism 2 added, secondary fitting calendering structure includes secondary fitting
Calendering upper roller 2-1, graphite Scroll 2-2, the first release film winding 2-3, secondary fitting calendering lower roll 2-4, the second release film are put
Spool 2-5 and the second servo motor 2-6, the secondary fitting calendering upper roller 2-1 is mounted on the discharge end of main calendering structure 1, main
Calendering structure 1 is mounted on mounting rack 3, and secondary fitting calendering upper roller 2-1 passed through with the secondary gap for being bonded calendering lower roll 2-4
Roller 4 and the second servo motor 2-6 control, the second release film unreeling shaft 2-5 and the first release film winding 2-3 are fixedly mounted on rewinding
End.
First servo motor 1-7 is provided in the main calendering structure 1, secondary calender lamination mechanism 2 is in the second servo electricity
It is synchronous with first servo motor 1-7 under the driving of machine 2-6.
The main calendering structure 1 and secondary calender lamination mechanism 2 are provided with hydraulic structure and gap self-checking device.
Fig. 2 is that the material of two-step method graphite calendering device moves towards schematic diagram, wherein dotted portion is the trend of material.
The calendering process of the two-step method graphite calendering device, comprising the following steps:
(a) roll for the first time: will be fixed on graphite unreeling shaft 1-1 with a thickness of 65 μm of expandable graphite raw materials, first is specific release
Film (silicone oil release film, off-type force 480gf/in) is fixed on epiphragma unreeling shaft 1-2, and PET original film is fixed on the first release film and puts
On spool 1-5, by the first specific release film, expandable graphite raw material, PET original film also cross main calendering upper roller 1-3 and main calendering
The gap of lower roll 1-6 makes expandable graphite be forced into setting between up-down rollers thick by adjusting gap and the calender pressure of up-down rollers
32 μm of degree；
(b) second rolls: the graphite after rolling for the first time in step (a) was passed through into roller 4, thereafter by PET original film stripping in
Former graphite, and by PET original film garbage collection on the first release film winding 2-3；After first specific release film+first time calendering
Graphite continues through secondary calender lamination mechanism 2 together, and specific release with second on the second release film unreeling shaft 2-5 simultaneously
Film (silicone oil release film, off-type force 350gf/in) is pasted through secondary fitting calendering upper roller 2-1 with the secondary calendering lower roll 2-4 that is bonded again
Combined pressure is prolonged, and after the completion of fitting, by the first specific release film stripping in expandable graphite, expandable graphite is made successfully to be fitted in the second spy
Determine on release film, and through graphite Scroll 2-2 wind, finished product graphite with a thickness of 32 μm, finished product graphite is specific release to second
The peeling force of film is 4.2gf/in.
First specific release film described in step (a) is located at the graphite upper surface after rolling for the first time.
Calender pressure described in step (a) is 4MPa.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way.It is all according to the present invention
Essence any simple modification, change and equivalence change to the above embodiments, still fall within technical solution of the present invention
In protection scope.
Claims (6)
1. a kind of two-step method graphite calendering device, including main calendering structure (1), main calendering structure include graphite unreeling shaft (1-1),
Epiphragma unreeling shaft (1-2), main calendering upper roller (1-3), epiphragma Scroll (1-4), the first release film unreeling shaft (1-5) and main calendering
Lower roll (1-6), which is characterized in that further include the secondary calender lamination mechanism (2) added, secondary fitting calendering structure includes secondary
Fitting calendering upper roller (2-1), graphite Scroll (2-2), the first release film winding (2-3), secondary fitting roll lower roll (2-4),
Second release film unreeling shaft (2-5) and the second servo motor (2-6), secondary fitting calendering upper roller (2-1) are mounted on main pressure
Prolong the discharge end of structure (1), main calendering structure (1) is mounted on mounting rack (3), secondary fitting calendering upper roller (2-1) with it is secondary
The gap of fitting calendering lower roll (2-4) passed through roller (4) and the second servo motor (2-6) control, the second release film unreeling shaft (2-
5) and the first release film winding (2-3) is fixedly mounted on rewinding end.
2. two-step method graphite calendering device according to claim 1, which is characterized in that set on the main calendering structure (1)
It is equipped with first servo motor (1-7), secondary calender lamination mechanism (2) is watched under the driving of the second servo motor (2-6) with first
It is synchronous to take motor (1-7).
3. two-step method graphite calendering device according to claim 1, which is characterized in that the main calendering structure (1) and two
Secondary calender lamination mechanism (2) is provided with hydraulic structure and gap self-checking device.
4. the calendering process of two-step method graphite calendering device described in claim 1, which comprises the following steps:
(a) roll for the first time: expandable graphite raw material being fixed on graphite unreeling shaft (1-1), the first specific release film is fixed on
On epiphragma unreeling shaft (1-2), PET original film is fixed on the first release film unreeling shaft (1-5), by the first specific release film, foaming
Graphite raw material, PET original film pass through adjusting up-down rollers also cross the gap of main calendering upper roller (1-3) and main calendering lower roll (1-6)
Gap and calender pressure, so that expandable graphite is forced into setting thickness between up-down rollers；
(b) roll for second: the graphite after rolling for the first time in step (a) being passed through into roller (4), thereafter by PET original film stripping
In former graphite, and by PET original film garbage collection in the first release film winding (2-3)；First specific release film+first time calendering
Graphite afterwards continues through secondary calender lamination mechanism (2) together, and simultaneously with second on the second release film unreeling shaft (2-5)
Specific release film is bonded calendering lower roll (2-4) fitting calendering again with secondary through secondary fitting calendering upper roller (2-1), and fitting is completed
Afterwards, expandable graphite is fitted in successfully on the second specific release film in expandable graphite the first specific release film stripping, and pass through
Graphite Scroll (2-2) winding.
5. the calendering process of two-step method graphite calendering device according to claim 4, which is characterized in that institute in step (a)
State the graphite upper surface that the first specific release film is located at after rolling for the first time.
6. the calendering process of two-step method graphite calendering device according to claim 4, which is characterized in that institute in step (a)
Stating calender pressure is 1 ~ 10MPa, and the product thickness of expandable graphite is controlled at 10 ~ 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887186.XA CN110526242B (en) | 2019-09-19 | 2019-09-19 | Two-step graphite calendaring device and calendaring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887186.XA CN110526242B (en) | 2019-09-19 | 2019-09-19 | Two-step graphite calendaring device and calendaring method |
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| Publication Number | Publication Date |
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| CN110526242A true CN110526242A (en) | 2019-12-03 |
| CN110526242B CN110526242B (en) | 2024-02-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111674076A (en) * | 2020-06-19 | 2020-09-18 | 江苏格优碳素新材料有限公司 | Preparation method of graphite bare die calendering |
| CN111716617A (en) * | 2020-06-29 | 2020-09-29 | 安徽普瑞康医药包装科技有限公司 | A extend pressure forming device for capsule packaging polyvinyl chloride resin |
| CN112720993A (en) * | 2020-12-02 | 2021-04-30 | 界首市天鸿新材料股份有限公司 | Adjusting mechanism of lithium battery diaphragm calender |
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| CN111674076A (en) * | 2020-06-19 | 2020-09-18 | 江苏格优碳素新材料有限公司 | Preparation method of graphite bare die calendering |
| CN111716617A (en) * | 2020-06-29 | 2020-09-29 | 安徽普瑞康医药包装科技有限公司 | A extend pressure forming device for capsule packaging polyvinyl chloride resin |
| CN112720993A (en) * | 2020-12-02 | 2021-04-30 | 界首市天鸿新材料股份有限公司 | Adjusting mechanism of lithium battery diaphragm calender |
| CN112720993B (en) * | 2020-12-02 | 2022-06-17 | 界首市天鸿新材料股份有限公司 | Adjusting mechanism of lithium battery diaphragm calender |
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| CN110526242B (en) | 2024-02-06 |
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