CN108725996A - It covers iron film process units and covers the production method of iron film - Google Patents
It covers iron film process units and covers the production method of iron film Download PDFInfo
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- CN108725996A CN108725996A CN201710270113.7A CN201710270113A CN108725996A CN 108725996 A CN108725996 A CN 108725996A CN 201710270113 A CN201710270113 A CN 201710270113A CN 108725996 A CN108725996 A CN 108725996A
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- iron
- laminating mechanism
- iron film
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/66—Cans, tins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Abstract
The invention discloses a kind of production methods covered iron film process units and cover iron film.This covers iron film process units according to iron film production process is covered：Unreeling structure, preheating mechanism, laminating mechanism, more chill rolls, cooling body, the rolling-up mechanisms set gradually from upstream to downstream, and it is separately positioned on the first online extrusion mechanism and the second online extrusion mechanism of the laminating mechanism both sides；Wherein, the unreeling structure unreels third film, the first online extrusion mechanism squeezes out the first film online, and the second online extrusion mechanism squeezes out the second film online, and the third film, the first film, second film obtain covering iron film after laminating mechanism pressing.The present invention's covers when iron film is covered in the production of iron film process units that not only energy expenditure is low, but also covering between each film layer of iron film of producing has high adhesion strength, is less prone to warpage or segregation phenomenon.
Description
Technical field
The present invention relates to Material cladding technical fields, specifically, being related to a kind of cover iron film process units and covers iron film
Production method.
Background technology
Film-covered iron packaging material can be widely applied to the food packagings such as two-piece can canned food, three pieces tank deck bottom cover packaging
Field can be divided into food cans and beverage can by application.Such as fish, ham, pork luncheon meat food cans molding mode with DRD (punching
Pull out pulling method) based on moulding process, belong to shallow stretching tank, after stretching, the whole reductions of this kind of food cans usually often 25~
30%.Compared with food cans, the ironing of beverage can generally use (D&I methods) moulding process produces, and the moulding process is more multiple
Miscellaneous, technical difficulty higher, such product of the U.S. is referred to as Drawn and Ironed Cans, abbreviation D&I tanks or DI tanks, and Europe claims
Be Drawn and Wall Ironed Cans, abbreviation DWI tanks, experience ironing processing when, the thickness of can body side wall subtracts
Thin is 1/3 or so of original thickness, and the most thin place of iron film of covering of pot use also only has 1/3 or so of original basement membrane thickness.
Referring to Fig.1, it is three-decker that existing one kind, which covering iron film 10, including intermediate substrate layer 12 and is located at substrate layer 12
The adhesive layer 11 and functional layer 13 of both sides, in use, will cover iron film 10 by the adhesion strength of adhesive layer 11 is attached to can body, through drawing
Become food cans or beverage can after stretching.
A kind of production method for covering iron film 10 of existing three-decker is：First, by intermediate substrate layer 12 by adding
Thermal is heated to 270~290 DEG C；Then, adhesive layer 11, substrate layer 12 and functional layer 13 are sent into laminating mechanism, in high pressure
Lower progress repoussage, which bonds to be formed, covers iron film 10；Finally, iron film 10 is covered to be wound by rolling-up mechanism after cooling device rapid cooling, this
Kind production method may be used as covering iron film 10 on production DRD tanks.This production method has the following problems：Substrate layer 12 is added
Heat is to 270~290 DEG C and individually produces adhesive layer 11 and functional layer 13 needs to consume a large amount of energy, of high cost, is unfavorable for dropping
Low energy consumption；The temperature for covering iron film 10 after repoussage bonds is higher, after chilling cools down, the adhesive layer 11 of substrate layer 12 and both sides,
Warpage or segregation phenomenon are susceptible between functional layer 13 when stretching in the later stage.
Another production method for covering iron film 10 of existing three-decker is：Adhesive layer 11, substrate layer 12 and functional layer
13 enter film formation device by three after line extrusion mechanism extrusion respectively, and the die temperature of online extrusion mechanism is about 270~
280 DEG C, in film formation device, adhesive layer 11, substrate layer 12 and functional layer 13 become through pressing covers iron film original film；Then, iron is covered
Film original film enters stretching device, by transverse direction and longitudinal direction 1：Iron film 10 is covered in 3.5 drawing and setting formation, and this production method can be with
As producing iron film 10 is covered on DRD tanks and DWI tanks.This production method has the following problems：Three online extrusion mechanisms exist
When extrusion bonding layer 11, substrate layer 12 and functional layer 13, need to consume big energy, meanwhile, iron film original film is covered lateral and vertical
It is also required to be heated into drawing process, also needs to consume big energy, it is of high cost, it is unfavorable for reducing energy consumption.
Invention content
For problems of the prior art, one aspect of the present invention provides one kind and covering iron film process units, according to covering iron film
Production process includes：The unreeling structure that is set gradually from upstream to downstream, preheating mechanism, laminating mechanism, more chill rolls, coolings
Mechanism, rolling-up mechanism, and it is separately positioned on the first online extrusion mechanism and the second online extrusion of the laminating mechanism both sides
Mechanism；
Wherein, the unreeling structure unreels third film, and the first online extrusion mechanism squeezes out the first film online, institute
It states the second online extrusion mechanism and squeezes out the second film online, the third film, the first film, second film are through institute
It obtains covering iron film after stating laminating mechanism pressing.
In some embodiments, the laminating mechanism be the first laminating mechanism, the third film, the first film and
Second film is pressed to obtain into first laminating mechanism simultaneously covers iron film.
In some embodiments, the laminating mechanism includes the first laminating mechanism and the second laminating mechanism, and the third is thin
Film and the first film are pressed through first laminating mechanism first, then, thin after first laminating mechanism pressing
Film presses to obtain with second film through second laminating mechanism covers iron film.
In some embodiments, the more chill rolls include the first chill roll to the 6th chill roll, first cooling
Roller and second chill roll are steel rider, and the third chill roll to the 6th chill roll is rubber roller.
In some embodiments, the surface temperature of first chill roll to the 6th chill roll reduces successively.
In some embodiments, the surface temperature of first chill roll is 80~90 DEG C, the table of second chill roll
Face temperature is 50~60 DEG C, and the surface temperature of the third chill roll is 40~50 DEG C, the surface temperature of the 4th chill roll
It is 30~40 DEG C, the surface temperature of the 5th chill roll is 20~30 DEG C, the surface temperature of the 6th chill roll is 10~
20℃。
Another aspect of the present invention provides a kind of production method for covering iron film, and the production method covers the life of iron film using above-mentioned
Production device is produced, and the production method includes：The third film that the unreeling structure unreels is preheated through the preheating mechanism
The first film, the second online extrusion mechanism squeezed out online with the described first online extrusion mechanism afterwards squeeze out online second
Film is pressed to obtain into the laminating mechanism covers iron film, and the iron film that covers is through the more chill rolls, the cooler
It is wound by the rolling-up mechanism after structure cooling.
In some embodiments, the laminating mechanism is the first laminating mechanism, the third film that the unreeling structure unreels
The first film that is squeezed out online with the described first online extrusion mechanism after preheating mechanism preheating, described second online squeeze out
The second film while entrance first laminating mechanism that mechanism squeezes out online are pressed to obtain and cover iron film.
In some embodiments, the laminating mechanism includes the first laminating mechanism and the second laminating mechanism, the unreeling machine
The first film that the third film that structure unreels squeezes out after preheating mechanism preheating with the described first online extrusion mechanism online
First laminating mechanism is initially entered to be pressed, then, the film and described the after being pressed by first laminating mechanism
The second film that two online extrusion mechanisms squeeze out online is pressed to obtain into second laminating mechanism covers iron film.
In some embodiments, the third film that the unreeling structure unreels through the preheating mechanism preheating after temperature be
60~80 DEG C, 230~260 DEG C of the die temperature of the first online extrusion mechanism and the second online extrusion mechanism.
Compared with prior art, it is provided by the invention cover iron film process units and cover the production method of iron film at least and have with
Lower advantageous effect：The present invention's covers when iron film is covered in the production of iron film process units that not only energy expenditure is low, but also what is produced covers iron film
There is high adhesion strength between each film layer, be less prone to warpage or segregation phenomenon.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 is a kind of schematic cross-section covering iron film.
Fig. 2 is the schematic diagram for covering iron film process units of one embodiment of the invention.
Fig. 3 is the schematic diagram for covering iron film process units of another embodiment of the present invention.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
The word of expression position and direction described in the present invention, is the explanation carried out by taking attached drawing as an example, but according to need
It wants to make a change, done change is all contained in the scope of the present invention.It is opposite that the attached drawing of the present invention is only used for signal
Position relationship, the thickness at certain positions use the plotting mode lavished praise on oneself in order to understand, the thickness in attached drawing does not represent reality
The proportionate relationship of border thickness.
To solve problems of the prior art, one aspect of the present invention provides one kind and covering iron film process units, this covers iron
Not only energy expenditure is low when iron film is covered in the production of film process units, but also covering between each film layer of iron film of producing has high bonding strong
Degree, is less prone to warpage or segregation phenomenon.
Fig. 2 is the schematic diagram for covering iron film process units of one embodiment of the invention, and with reference to Fig. 2, the present embodiment covers iron
Film process units includes according to iron film production process is covered：The unreeling structure 21 that is set gradually from upstream to downstream, preheating mechanism 22, pressure
Mechanism, more chill rolls, cooling body 25, rolling-up mechanism 26 are closed, and is separately positioned on the first online of laminating mechanism both sides
Extrusion mechanism 271 and the second online extrusion mechanism 272.
It is above-mentioned cover iron film process units and can be used for producing as shown in Figure 1 cover iron film 10 with three-decker, wherein
Unreeling structure 21 unreels third film 33, and the first online extrusion mechanism 271 squeezes out the first film 31, the second online extruder online
Structure 272 squeezes out the second film 32 online, and third film 33, the first film 31, the second film 32 obtain after laminating mechanism presses
Cover iron film 10.
Optionally, after laminating mechanism presses, third film 33 forms the substrate layer 12 of Fig. 1 covered in iron film 10, the base
The material of material layer 12 include but not limited to be PET (polyethylene terephthalate) or PP (polypropylene).Through laminating mechanism pressure
After conjunction, the first film 31 forms the adhesive layer 11 of Fig. 1 covered in iron film 10, when that will cover iron film 10 and be bonded on metallic plate, glues
Close layer 11 has higher bond strength as internal layer and metallic plate, can not only be subjected to high-temperature sterilization treatment, and can be through
By larger interior pressure, compressive resistance is high, the material of the adhesive layer 11 include but not limited to be the modification with adhesive effect
PET.After laminating mechanism presses, the second film 32 forms the functional layer 13 of Fig. 1 covered in iron film 10, and the functional layer 13 is as outer
Layer film, blocking food and drink etc. are permeated to metallic plate, are avoided corroding and be polluted, and have certain scratch resistance capability, the work(
The material of ergosphere 13 include but not limited to be modified PET.
Preheating mechanism 22 is for preheating the third film 33 that unreeling structure 21 unreels, with the when subsequently to press
One film 31, the second film 32 have higher adhesion strength.Preferably, the third film 33 that unreeling structure 21 unreels is preheated
Temperature after mechanism 22 preheats is 60~80 DEG C, which can significantly reduce the energy expenditure of product, and will not reduce and cover iron
The performance of 10 product of film.Optionally, preheating mechanism 22 is the incubator for being internally provided with multiple deflector rolls 28.
First online extrusion mechanism 271 for squeezing out the first film 31 online, and the second online extrusion mechanism 272 is for online
The second film 32 is squeezed out, in other words, the first film 31 and the second online extrusion mechanism that the first online extrusion mechanism 271 squeezes out
Laminating mechanism is directly entered after 272 the second films 32 for squeezing out are extruded to be pressed with third film 33,31 He of the first film
The film product that second film 32 rather than use have squeezed out is pressed.Since the first online extrusion mechanism 271 and second is online
The temperature of die orifice is high when extrusion mechanism 272 squeezes out, and freshly extruded the first film 31 and the second film 32 have higher temperature, directly
It taps into and carries out the remnants temperature that pressing can make full use of the first film 31 and the second film 32 into laminating mechanism and third film 33
Degree, enables the first film 31, the second film 32 to be combined with carrying out high intensity at high temperature under high pressure with third film 33, formation
The adhesion strength for covering each film layer of iron film 10 is high.Preferably, the first online extrusion mechanism 271 and the second online extrusion mechanism 272
230~260 DEG C of die temperature.
In the present embodiment, laminating mechanism is the first laminating mechanism 231, third film 33, the first film 31 and the second film
32 are pressed to obtain and cover iron film 10 into the first laminating mechanism 231 simultaneously.Optionally, the first laminating mechanism 231 includes first
Press bonding roller and the first rubber roller, the first press bonding roller for example can be steel rider, third film 33, the first film 31 and the second film 32 warp
First press bonding roller and the first rubber roller to swaging at covering iron film 10.The present invention does not limit the specific location of the first press bonding roller, can be with
The left side is set, can also be arranged on the right.Optionally, the first laminating mechanism 231 further includes control the movement of the first press bonding roller the
One control device (not shown), first control device can control the first press bonding roller and be moved to the first rubber roller, or the first pressure of control
Roller is closed far from the first rubber roller.
More chill rolls to pressing the iron film 10 that covers to be formed through laminating mechanism for cooling down, preferably, more coolings
Roller includes 241 to the 6th chill roll 246 of the first chill roll, which includes the first cooling
Roller 241, the second chill roll 242, third chill roll 243, the 4th chill roll 244, the 5th chill roll 245 and the 6th chill roll 246.
First chill roll 241 and the second chill roll 242 are steel rider, and 243 to the 6th chill roll 246 of third chill roll is rubber roller, wherein the
One chill roll, 241 to the 6th chill roll 246 includes the roll body of a pair of opposing, covers iron film 10 and is contacted with the surface of roll body,
Temperature is passed into roll body.Preferably, the surface temperature of 241 to the 6th chill roll 246 of the first chill roll reduces successively so that warp
Covering iron film 10 and can gradually cool down with higher temperature after pressing, and carries out rapid cooling phase to covering iron film 10 in the prior art
Than gradually cooling can prevent from covering iron film 10 warpage or segregation phenomenon occurs during posterior drawing between each film layer, keep
Higher adhesion strength between each film layer.Inventor it has been investigated that, the surface temperature of the first chill roll 241 is 80~90 DEG C,
The surface temperature of second chill roll 242 is 50~60 DEG C, and the surface temperature of third chill roll 243 is 40~50 DEG C, the 4th cooling
The surface temperature of roller 244 is 30~40 DEG C, and the surface temperature of the 5th chill roll 245 is 20~30 DEG C, the table of the 6th chill roll 246
When face temperature is 10~20 DEG C, the adhesion strength between each film layer for covering iron film 10 after cooling reaches best.
Cooling body 25 through 241 to the 6th chill roll of the first chill roll, the 246 iron film 10 after cooling that covers to carrying out most final decline
Temperature, to eliminate the residual temperature for covering iron film 10.Optionally, cooling body 25 is the sink equipped with cooling water, preferably, in sink
The temperature of cooling water is 5~8 DEG C.
For rolling-up mechanism 26 to being wound through the iron film 10 after cooling that covers of cooling body 25, existing skill can be used in structure
Art, it will not be described here.
Optionally, the iron film process units that covers of the invention can further include at least one deflector roll 28, deflector roll 28
Position can be configured as needed, for the first film 31 and the second film 32, third film 33 or cover iron film 10 into
Row is oriented to.
Fig. 3 is the schematic diagram for covering iron film process units of another embodiment of the present invention, and with reference to Fig. 3, the present embodiment covers iron
Film process units is similar with the structure for covering iron film process units in Fig. 2, and difference lies in laminating mechanism includes the first pressing machine
Structure 231 and the second laminating mechanism 232, third film 33 and the first film 31 are pressed through the first laminating mechanism 231 first, then,
Film and the second film 32 after the pressing of the first laminating mechanism 231 obtain covering iron film 10 through the pressing of the second laminating mechanism 232.It changes
Yan Zhi, the first film 31 are directly entered the first laminating mechanism 231 and third film 33 through first after the extrusion of line extrusion mechanism 271
Pressed, then, the second film 32 through second be directly entered after the extrusion of line extrusion mechanism 272 second laminating mechanism 232 with
Film after the pressing of the first laminating mechanism 231 is pressed, and iron film 10 is covered in formation.This advantages of covering iron film process units, exists
It can adequately be pressed between third film 33 and the first film 31, between the first film 31 and the second film 32, respectively
Adhesion strength higher between film layer.
Optionally, the mechanism essentially identical with the first laminating mechanism 231, including may be used in the second laminating mechanism 232
Two press bonding rollers and the second rubber roller, the second press bonding roller for example can be steel riders.The present invention does not limit the specific location of the second press bonding roller,
The left side can be set, can also be arranged on the right.Optionally, the second laminating mechanism 232 further includes control the second press bonding roller movement
Second control device (not shown), second control device can control the second press bonding roller and be moved to the second rubber roller, or control the
Two press bonding rollers are far from the second rubber roller.
Another aspect of the present invention provides a kind of production method for covering iron film 10, which covers the life of iron film using above-mentioned
Production device is produced, and production method includes：With the after the preheating of 33 preheated mechanism 22 of third film that unreeling structure 21 unreels
The second film 32 that the first film 31 that one online extrusion mechanism 271 squeezes out online, the second online extrusion mechanism 272 squeeze out online
It is pressed to obtain into laminating mechanism and covers iron film 10, cover iron film 10 after more chill rolls, cooling body 25 cool down by winding
Mechanism 26 is wound.
In one embodiment, production method of the invention covers iron film process units, above-mentioned producer using shown in Fig. 2
In method, laminating mechanism is the first laminating mechanism 231, after the preheating of 33 preheated mechanism 22 of third film that unreeling structure 21 unreels with
The second film that the first film 31 that first online extrusion mechanism 271 squeezes out online, the second online extrusion mechanism 272 squeeze out online
32 are pressed to obtain and cover iron film 10 into the first laminating mechanism 231 simultaneously.
In one embodiment, production method of the invention covers iron film process units, above-mentioned producer using shown in Fig. 3
In method, laminating mechanism includes the first laminating mechanism 231 and the second laminating mechanism 232, the third film 33 that unreeling structure 21 unreels
The first film 31 that preheated mechanism 22 squeezes out after preheating with the first online extrusion mechanism 271 online initially enters the first pressing machine
Structure 231 is pressed, and then, film and the second online extrusion mechanism 272 after being pressed by the first laminating mechanism 231 squeeze out online
The second film 32 pressed to obtain and cover iron film 10 into the second laminating mechanism 232.
In a preferred embodiment, the temperature after the preheating of unreeling structure 21 unreels 33 preheated mechanism 22 of third film is
60~80 DEG C, 230~260 DEG C of the die temperature of the first online extrusion mechanism 271 and the second online extrusion mechanism 272.Due to
The temperature of die orifice high, freshly extruded 31 He of the first film when one online extrusion mechanism 271 and the second online extrusion mechanism 272 squeeze out
Second film 32 has higher temperature, is directly entered laminating mechanism and third film 33 carries out pressing and can make full use of first
The residual temperature of film 31 and the second film 32 enables the first film 31, the second film 32 with third film 33 in high temperature height
Pressure combines with carrying out high intensity, meanwhile, the temperature after the preheating of 33 preheated mechanism 22 of third film is relatively low, can significantly reduce
The energy expenditure of product, and the performance for covering iron film product will not be reduced.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (10)
1. one kind covering iron film process units, which is characterized in that include according to iron film production process is covered：It is set gradually from upstream to downstream
Unreeling structure, preheating mechanism, laminating mechanism, more chill rolls, cooling body, rolling-up mechanisms, and be separately positioned on described
The the first online extrusion mechanism and the second online extrusion mechanism of laminating mechanism both sides；
Wherein, the unreeling structure unreels third film, and the first online extrusion mechanism squeezes out the first film online, and described
Two online extrusion mechanisms squeeze out the second film online, and the third film, the first film, second film are through the pressure
It obtains covering iron film after closing mechanism pressing.
2. according to claim 1 cover iron film process units, which is characterized in that the laminating mechanism is the first pressing machine
Structure, the third film, the first film and second film into first laminating mechanism press simultaneously
To covering iron film.
3. according to claim 1 cover iron film process units, which is characterized in that the laminating mechanism includes the first pressing machine
Structure and the second laminating mechanism, the third film and the first film are pressed through first laminating mechanism first, then, warp
Film after the first laminating mechanism pressing presses to obtain with second film through second laminating mechanism covers iron film.
4. according to claim 1 cover iron film process units, which is characterized in that the more chill rolls include the first cooling
For roller to the 6th chill roll, first chill roll and second chill roll are steel rider, the third chill roll to the described 6th
Chill roll is rubber roller.
5. according to claim 4 cover iron film process units, which is characterized in that first chill roll is to the described 6th cold
But the surface temperature of roller reduces successively.
6. according to claim 5 cover iron film process units, which is characterized in that the surface temperature of first chill roll is
80~90 DEG C, the surface temperature of second chill roll is 50~60 DEG C, and the surface temperature of the third chill roll is 40~50
DEG C, the surface temperature of the 4th chill roll is 30~40 DEG C, and the surface temperature of the 5th chill roll is 20~30 DEG C, described
The surface temperature of 6th chill roll is 10~20 DEG C.
7. a kind of production method for covering iron film, the production method covers the progress of iron film process units using described in claim 1
Production, which is characterized in that the production method includes：The third film that the unreeling structure unreels is preheated through the preheating mechanism
The first film, the second online extrusion mechanism squeezed out online with the described first online extrusion mechanism afterwards squeeze out online second
Film is pressed to obtain into the laminating mechanism covers iron film, and the iron film that covers is through the more chill rolls, the cooler
It is wound by the rolling-up mechanism after structure cooling.
8. production method according to claim 7, which is characterized in that the laminating mechanism is the first laminating mechanism, described
The third film that unreeling structure unreels squeezed out online with the described first online extrusion mechanism after preheating mechanism preheating the
The second film while entrance first laminating mechanism that one film, the second online extrusion mechanism squeeze out online are pressed
It obtains covering iron film.
9. production method according to claim 7, which is characterized in that the laminating mechanism includes the first laminating mechanism and the
Two laminating mechanisms, the third film that the unreeling structure unreels through the preheating mechanism preheating after with the described first online extruder
The first film that structure squeezes out online initially enters first laminating mechanism and is pressed, then, by first laminating mechanism
The second film that film after pressing squeezes out online with the described second online extrusion mechanism is carried out into second laminating mechanism
Pressing obtains covering iron film.
10. production method according to claim 7, which is characterized in that the third film that the unreeling structure unreels is through institute
It is 60~80 DEG C to state the temperature after preheating mechanism preheating, the first online extrusion mechanism and the second online extrusion mechanism
230~260 DEG C of die temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270113.7A CN108725996A (en) | 2017-04-24 | 2017-04-24 | It covers iron film process units and covers the production method of iron film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270113.7A CN108725996A (en) | 2017-04-24 | 2017-04-24 | It covers iron film process units and covers the production method of iron film |
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| CN108725996A true CN108725996A (en) | 2018-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111347815A (en) * | 2020-03-30 | 2020-06-30 | 福建省闽发铝业股份有限公司 | Spraying pretreatment method and spraying pretreatment device |
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