CN105082709A - Production process of anticorrosion shielding film - Google Patents
Production process of anticorrosion shielding film Download PDFInfo
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- CN105082709A CN105082709A CN201510528734.1A CN201510528734A CN105082709A CN 105082709 A CN105082709 A CN 105082709A CN 201510528734 A CN201510528734 A CN 201510528734A CN 105082709 A CN105082709 A CN 105082709A
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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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
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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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/752—Corrosion inhibitor
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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
- B32B2457/00—Electrical equipment
Abstract
A production process of an anticorrosion shielding film includes the steps of preparing materials, laminating a first side aluminum foil, allowing standing for solidification, laminating a second side aluminum foil, performing thermal drying for solidification, laminating an EVA (ethylene-vinyl acetate) layer, laminating an acrylic anticorrosion layer, allowing indoor standing, and performing slitting and winding. The production method has the main advantages that the production process disclosed by the invention is simple, low in production cost and high in production efficiency; the anticorrosion layer and the EVA layer are laminated to two sides of the anticorrosion shielding film, a core of a cable can be protected from corrosion, corrosion resistance is excellent, and the service life of the cable is prolonged.
Description
Technical field
The present invention relates to a kind of screened film, particularly relate to a kind of production technology of anticorrosion screened film.
Background technology
What is called shielding on the construction of cable is in fact the measure improving Electric Field Distribution.Cable conductor forms by stranded conductor is stranded, and easily form air gap between it and insulating barrier, conductive surface is rough, and electric field can be caused to concentrate.Add the screen layer of one deck semiconductive material at conductive surface, the conductor equipotential of it and conductively-closed, and with insulating barrier good contact, thus avoid, between conductor and insulating barrier, shelf depreciation occurs.This one deck shields, and is also called internal shield.In insulating surface and sheath contact position, also may there is gap, during cable bend, oil paper cable insulating surface easily causes crackle, and these are all the factors causing shelf depreciation.Add the screen layer of one deck semiconductive material at surface of insulating layer, the insulating barrier of it and conductively-closed has good contact, with protective metal shell equipotential, thus avoids, between insulating barrier and sheath, shelf depreciation occurs.
What traditional cable shielding film adopted is the semiconductor structure that two-layer aluminium foil layer sandwiched plastic layer is formed, and the shield effectiveness of this kind of screened film is poor, and when cable serving is damaged, screened film directly can be subject to extraneous corrosion, cause namely being corroded in the short time damage, have influence on the normal use of cable, limit the service life of cable.When especially relating to submarine cable, because the salinity of seawater is higher, the submarine cable moment is in the stronger environment of corrosivity, and its screened film is easy to be corroded, and has influence on the service life of submarine cable.
In prior art, propose a kind of anticorrosion screened film, its structure comprises: two-layer aluminium foil layer and the pet layer be located between two-layer aluminium foil layer, all there is adhesive layer between described pet layer and two-layer aluminium foil layer, in described two-layer aluminium foil layer, one aluminium foil layer outer application has for corrosion-resistant acrylic acid anticorrosive coat, another aluminium foil layer outer application has for anticorrosion and water proof and have fusible EVA layer, but do not disclose its preparation method or technique, be therefore necessary do further research to the manufacture craft of anticorrosion screened film and optimize.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, a kind of production technology of anticorrosion screened film is provided.
In order to achieve the above object, the technical solution adopted in the present invention is:
A production technology for anticorrosion screened film, with PET and aluminium foil for main material, is prepared from by following steps:
S1, material preparation process, select pet layer and aluminium foil layer, get adhesive, acrylic acid anticorrisive agent and EVA jelly ready;
S2, first surface aluminium foil composite steps, pet layer one side corona and after its corona surface application of adhesive through baking oven heat dry, aluminium foil layer one side corona, the corona surface of aluminium foil layer is relative with the application of adhesive face of pet layer carries out compound, obtain one side semi-finished product spool;
S3, standing curing schedule, be positioned over rest chamber 5 ~ 8 days by one side semi-finished product spool, the adhesive in one side semi-finished product solidified completely;
S4, second aluminium foil composite steps, the PET face of one side semi-finished product spool is carried out corona and is dried through baking oven heat after its corona surface application of adhesive, aluminium foil layer one side corona, the corona surface of aluminium foil layer is relative with the application of adhesive face of one side semi-finished product spool carries out compound, obtained two-sided semi-finished product spool;
S5, heat dry curing schedule, and two-sided semi-finished product spool to be positioned in baking oven 24 ~ 72 hours, oven temperature is 50 ~ 55 DEG C, and the adhesive in two-sided semi-finished product is solidified completely;
S6, EVA layer composite steps, two-sided semi-finished product spool side coating EVA also forms one side compound semi-finished product spool through overheated baking and pressing;
S7, acrylic acid anticorrosive coat composite steps, one side compound semi-finished product side coating acrylic acid anticorrisive agent also forms two-sided compound semi-finished product spool through overheated baking and pressing;
S8, indoor stating step, be positioned over two-sided compound semi-finished product spool in rest chamber and leave standstill more than 24 hours, acrylic acid anticorrosive coat is solidified;
S9, cut coiling step, two-sided compound semi-finished product spool is divided and is cut to plural stock and synchronous coiling is the anticorrosion screened film of plural finished product.
Preferably, in described step S1, described adhesive by polyurethane adhesive, polyurethane adhesive curing agent and ethyl acetate according to mass ratio (8 ~ 10): (1 ~ 2): (8 ~ 10) are carried out proportioning and fully mixed rear obtained;
Preferably, described step S2 comprises the steps:
First aluminium foil layer is arranged on aluminium foil emptying roller, and pet layer is arranged on PET emptying roller, and wherein, the unwinding tension of aluminium foil emptying roller is the unwinding tension of 0 ~ 40N, PET emptying roller is 10 ~ 50N,
Aluminium foil emptying roller release aluminium foil layer, the mode that aluminium foil layer contacts with doubling roller surface with non-corona matsurface after one side corona forms corona matsurface enters doubling roller,
PET emptying roller release pet layer, first pet layer forms corona matsurface through one side corona, then application of adhesive on the corona matsurface of pet layer is taken turns through coating area by mesh, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along pet layer, the mode finally contacted with doubling roller surface with the one side of uncoated adhesive enters doubling roller
Aluminium foil layer is synchronous with the pet layer of coated adhesive by doubling roller, and the one side semi-finished product formed after laminating roll in collecting roller, forms one side semi-finished product spool,
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 30 ~ 50 DEG C of heat drum temperature, and the half-finished speed of service of one side is 50 ~ 90 ms/min;
Wherein, oven interior has the temperature controlled region of two temperature increment by direction along pet layer, and the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, and the half-finished speed of service of one side is 75 ms/min.
Preferably, described step S4 comprises the steps:
First aluminium foil layer is arranged on aluminium foil emptying roller, and one side semi-finished product are arranged on PET emptying roller, and wherein, the unwinding tension of aluminium foil emptying roller is the unwinding tension of 0 ~ 40N, PET emptying roller is 10 ~ 50N,
Aluminium foil emptying roller release aluminium foil layer, the mode that aluminium foil layer contacts with doubling roller surface with non-corona matsurface after one side corona forms corona matsurface enters doubling roller,
PET emptying roller release one side semi-finished product, first the half-finished pet layer one side of one side forms corona matsurface through one side corona, then application of adhesive on the corona matsurface of pet layer one side is taken turns through coating area by mesh, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along one side semi-finished product, the mode finally contacted with doubling roller surface with the one side of uncoated adhesive enters doubling roller
Aluminium foil layer is synchronous with the one side semi-finished product of coated adhesive by doubling roller, and the two-sided semi-finished product formed after laminating roll in collecting roller, form two-sided semi-finished product spool,
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 30 ~ 50 DEG C of heat drum temperature, and two-sided half-finished speed of service is 50 ~ 90 ms/min;
Wherein, oven interior has the temperature controlled region of two temperature increment by direction along one side semi-finished product, and the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, and two-sided half-finished speed of service is 70 ms/min.
Preferably, described step S6 comprises the steps:
Two-sided semi-finished product spool is arranged on PET emptying roller, PET emptying roller discharges two-sided semi-finished product, the unwinding tension of PET emptying roller is 0 ~ 50N, first two-sided semi-finished product side aluminium foil layer forms corona matsurface through one side corona, then on the corona matsurface of aluminium foil layer, EVA jelly is applied by mesh wheel through coating area, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along two-sided semi-finished product, again through doubling roller, finally roll in collecting roller, form one side compound semi-finished product spool;
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 10 ~ 25 DEG C of heat drum temperature, and the half-finished speed of service of one side compound is 50 ~ 90 ms/min.
Preferably, in described step S6, oven interior at least has the temperature controlled region of two temperature increment by direction along two-sided semi-finished product, and the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, and the half-finished speed of service of one side compound is 70 ms/min.
Preferably, described step S7 comprises the steps:
One side compound semi-finished product are arranged on PET emptying roller, PET emptying roller release one side compound semi-finished product, the unwinding tension of PET emptying roller is 0 ~ 50N, first the aluminium foil layer of the non-compound EVA side of one side compound semi-finished product forms corona matsurface through one side corona, then on the corona matsurface of aluminium foil layer, acrylic acid anticorrisive agent is applied by mesh wheel through coating area, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along one side compound semi-finished product, again through doubling roller, finally roll in collecting roller, form two-sided compound semi-finished product spool,
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 10 ~ 25 DEG C of heat drum temperature, and the half-finished speed of service of two-sided compound is 20 ~ 40 ms/min.
Preferably, in described step S7, oven interior has the temperature controlled region of two temperature increment by direction along one side compound semi-finished product, the temperature range of two temperature controlled region is respectively 100 ~ 120 DEG C, 101 ~ 130 DEG C, and the half-finished speed of service of two-sided compound is 30 ms/min.
Preferably, the corona value of the corona matsurface of described aluminium foil layer, the corona matsurface of pet layer is 52 dyne.
Preferably, in described step S9, two-sided compound semi-finished product spool cuts into the anticorrosion screened film that width is 20 ~ 35mm.
Beneficial effect of the present invention is mainly reflected in:
1. disclose the production technology of anticorrosion screened film, concise production process, production cost is low, and production efficiency is high;
2. anticorrosion screened film both sides are compounded with anticorrosive coat and EVA layer respectively, can protect the inner core of cable, prevent inner core from suffering erosion, and anti-corrosion property can be superior, extends the service life of cable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of first surface aluminium foil composite steps and second aluminium foil composite steps in the production technology of a kind of anticorrosion screened film of the present invention;
Fig. 2 is the schematic diagram of acrylic acid anticorrosive coat composite steps and EVA layer composite steps in the production technology of a kind of anticorrosion screened film of the present invention;
Fig. 3 cuts coiling step schematic diagram in the production technology of a kind of anticorrosion screened film of the present invention;
Fig. 4 is the structural representation of anticorrosion screened film in the present invention;
Fig. 5 is the schematic flow sheet of the production technology of a kind of anticorrosion screened film of the present invention.
Detailed description of the invention
The invention provides a kind of production technology of anticorrosion screened film, concise production process.Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail, is easier to make it understand and grasp.
A kind of production technology of anticorrosion screened film, relate to and produce a kind of anticorrosion screened film, as shown in Figure 4, the pet layer 2 that the structure of this anticorrosion screened film comprises two-layer aluminium foil layer 1 and is located between two-layer aluminium foil layer 1, between described pet layer 2 and two-layer aluminium foil layer 1, all there is adhesive layer 3, in described two-layer aluminium foil layer 1, one aluminium foil layer outer application has for corrosion-resistant acrylic acid anticorrosive coat 4, acrylic acid anticorrosive coat 4 thickness is 0.5 ~ 3 μm, acrylic acid anticorrosive coat has stronger corrosion resistance, the invasion and attack of external corrosion environments can be kept out, protect the inner core of cable, extend the service life of cable, acrylic acid anticorrosive coat is acryloid cement anticorrosive coat, the composition of acryloid cement at least comprises acrylic acid, alcohols solvent, pigment and plasticizer, wherein, acrylic acid has stronger antiseptic property, alcohols solvent comprises isopropyl alcohol, ethylene glycol etc., alcohols solvent plays the effects such as dilution, pigment is polymer waterborne pigment, it is the effects such as the viscosity of aqueous solvent that plasticizer increases acryloid cement, the acrylic acid anticorrosive coat mixed by above material has the resistance to performance such as anticorrosion, and acryloid cement is aqueous solvent, harmless, another aluminium foil layer outer application has for anticorrosion and water proof and have fusible EVA layer 5, EVA layer 5 thickness is 1 ~ 5 μm, the cable cover(ing) bond properties of EVA and coaxial cable is strong, and have that water resistance is good, corrosion resistance, resilience and tension stress high, good shockproof/feature such as shock-absorbing capacity, anticorrosion, water proof, shockproof, the anti-effect such as to lose can be played to the inner core of cable.Anticorrosion screened film of the present invention is widely used in submarine cable, highway cable, electrical equipment inside cable, building cable etc.
The production technology of anticorrosion screened film of the present invention comprises the following steps as shown in Figure 5:
S1, material preparation process, select pet layer and aluminium foil layer, get adhesive, acrylic acid anticorrisive agent and EVA jelly ready; Adhesive by polyurethane adhesive, polyurethane adhesive curing agent and ethyl acetate according to mass ratio (8 ~ 10): (1 ~ 2): (8 ~ 10) are carried out proportioning and fully mixed rear obtained;
S2, first surface aluminium foil composite steps, as shown in Figure 1,
First aluminium foil layer is arranged on aluminium foil emptying roller, and pet layer is arranged on PET emptying roller, and wherein, the unwinding tension of aluminium foil emptying roller is the unwinding tension of 0 ~ 40N, PET emptying roller is 10 ~ 50N,
Aluminium foil emptying roller release aluminium foil layer, the mode that aluminium foil layer contacts with doubling roller surface with non-corona matsurface after one side corona forms corona matsurface enters doubling roller,
PET emptying roller release pet layer, first pet layer forms corona matsurface through one side corona, then application of adhesive on the corona matsurface of pet layer is taken turns through coating area by mesh, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along pet layer, preferably, oven interior has the temperature controlled region of two temperature increment by direction along pet layer, the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, the mode finally contacted with doubling roller surface with the one side of uncoated adhesive enters doubling roller,
Aluminium foil layer is synchronous with the pet layer of coated adhesive by doubling roller, and the one side semi-finished product formed after laminating roll in collecting roller, forms one side semi-finished product spool,
Described doubling roller is by fixing roller and mobile roller forms, fixing pressure between roller and mobile roller is 0.4 ~ 0.6MPa, and resting barrel has 30 ~ 50 DEG C of heat drum temperature, the half-finished speed of service of one side is 50 ~ 90 ms/min, preferably, the half-finished speed of service of one side is 75 ms/min;
S3, standing curing schedule, be positioned over one side semi-finished product spool in rest chamber and leave standstill more than 2 days, optimally, leaves standstill 5 ~ 8 days, the adhesive in one side semi-finished product is solidified completely;
S4, second aluminium foil composite steps, as shown in Figure 1,
First aluminium foil layer is arranged on aluminium foil emptying roller, and one side semi-finished product are arranged on PET emptying roller, and wherein, the unwinding tension of aluminium foil emptying roller is the unwinding tension of 0 ~ 40N, PET emptying roller is 10 ~ 50N,
Aluminium foil emptying roller release aluminium foil layer, the mode that aluminium foil layer contacts with doubling roller surface with non-corona matsurface after one side corona forms corona matsurface enters doubling roller,
PET emptying roller release one side semi-finished product, first the half-finished pet layer one side of one side forms corona matsurface through one side corona, then application of adhesive on the corona matsurface of pet layer one side is taken turns through coating area by mesh, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along one side semi-finished product, preferably, oven interior has the temperature controlled region of two temperature increment by direction along one side semi-finished product, the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, the mode finally contacted with doubling roller surface with the one side of uncoated adhesive enters doubling roller,
Aluminium foil layer is synchronous with the one side semi-finished product of coated adhesive by doubling roller, and the two-sided semi-finished product formed after laminating roll in collecting roller, form two-sided semi-finished product spool,
Described doubling roller is by fixing roller and mobile roller forms, fixing pressure between roller and mobile roller is 0.4 ~ 0.6MPa, and resting barrel has 30 ~ 50 DEG C of heat drum temperature, two-sided half-finished speed of service is 50 ~ 90 ms/min, preferably, two-sided half-finished speed of service is 70 ms/min;
S5, heat dry curing schedule, and two-sided semi-finished product spool to be positioned in baking oven 24 ~ 72 hours, oven temperature is 50 ~ 55 DEG C, and the adhesive in two-sided semi-finished product is solidified completely;
S6, EVA layer composite steps, as shown in Figure 2, two-sided semi-finished product spool is arranged on PET emptying roller, PET emptying roller discharges two-sided semi-finished product, the unwinding tension of PET emptying roller is 0 ~ 50N, first two-sided semi-finished product side aluminium foil layer forms corona matsurface through one side corona, then on the corona matsurface of aluminium foil layer, EVA jelly is applied by mesh wheel through coating area, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along two-sided semi-finished product, preferably, oven interior at least has the temperature controlled region of two temperature increment by direction along two-sided semi-finished product, the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, again through doubling roller, finally roll in collecting roller, form one side compound semi-finished product spool,
Described doubling roller is by fixing roller and mobile roller forms, fixing pressure between roller and mobile roller is 0.4 ~ 0.6MPa, and resting barrel has 10 ~ 25 DEG C of heat drum temperature, the half-finished speed of service of one side compound is 50 ~ 90 ms/min, preferably, the half-finished speed of service of one side compound is 70 ms/min;
S7, acrylic acid anticorrosive coat composite steps, as shown in Figure 2, one side compound semi-finished product are arranged on PET emptying roller, PET emptying roller release one side compound semi-finished product, the unwinding tension of PET emptying roller is 0 ~ 50N, first the aluminium foil layer of the non-compound EVA side of one side compound semi-finished product forms corona matsurface through one side corona, then on the corona matsurface of aluminium foil layer, acrylic acid anticorrisive agent is applied by mesh wheel through coating area, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along one side compound semi-finished product, preferably, oven interior has the temperature controlled region of two temperature increment by direction along one side compound semi-finished product, the temperature range of two temperature controlled region is respectively 100 ~ 120 DEG C, 101 ~ 130 DEG C, again through doubling roller, finally roll in collecting roller, form two-sided compound semi-finished product spool,
Described doubling roller is by fixing roller and mobile roller forms, fixing pressure between roller and mobile roller is 0.4 ~ 0.6MPa, and resting barrel has 10 ~ 25 DEG C of heat drum temperature, the half-finished speed of service of two-sided compound is 20 ~ 40 ms/min, preferably, the half-finished speed of service of two-sided compound is 30 ms/min;
S8, indoor stating step, be positioned over two-sided compound semi-finished product spool in rest chamber and leave standstill more than 24 hours, acrylic acid anticorrosive coat is solidified;
S9, cut coiling step, as shown in Figure 3, two-sided compound semi-finished product spool is divided and is cut to plural stock and synchronous coiling is the anticorrosion screened film of plural finished product; Concrete two-sided compound semi-finished product spool enters cutting mechanism after pinch roller, cutting mechanism comprises butcher's knife and chopping block wheel and carving knife group, preferably, the pressure between pinch roller is 3 ~ 4MPa, and two-sided compound semi-finished product spool is cut into the anticorrosion screened film that width is 20 ~ 35mm by cutting mechanism.Through being too synchronously wound in corresponding storage reel around mechanism after cutting.
Finally, the corona value of the corona matsurface of above-mentioned aluminium foil layer, the corona matsurface of pet layer is 52 dyne.
By describing above and can finding, present invention is disclosed the production technology of anticorrosion screened film, concise production process, production cost is low, and production efficiency is high; The anticorrosion screened film both sides of producing are provided with anticorrosive coat and EVA layer respectively, can protect the inner core of cable, prevent inner core from suffering erosion, and anti-corrosion property can be superior, extends the service life of cable.Above abundant description is carried out to technical scheme of the present invention; it should be noted that; the specific embodiment of the present invention is not by the restriction of foregoing description; those of ordinary skill in the art adopts equivalents or equivalent transformation and all technical schemes formed according to Spirit Essence of the present invention in structure, method or function etc., all drops within protection scope of the present invention.
Claims (10)
1. a production technology for anticorrosion screened film, with PET and aluminium foil for main material, is prepared from by following steps:
S1, material preparation process, select pet layer and aluminium foil layer, get adhesive, acrylic acid anticorrisive agent and EVA jelly ready;
S2, first surface aluminium foil composite steps, pet layer one side corona and after its corona surface application of adhesive through baking oven heat dry, aluminium foil layer one side corona, the corona surface of aluminium foil layer is relative with the application of adhesive face of pet layer carries out compound, obtain one side semi-finished product spool;
S3, standing curing schedule, be positioned over rest chamber 5 ~ 8 days by one side semi-finished product spool, the adhesive in one side semi-finished product solidified completely;
S4, second aluminium foil composite steps, the PET face of one side semi-finished product spool is carried out corona and is dried through baking oven heat after its corona surface application of adhesive, aluminium foil layer one side corona, the corona surface of aluminium foil layer is relative with the application of adhesive face of one side semi-finished product spool carries out compound, obtained two-sided semi-finished product spool;
S5, heat dry curing schedule, and two-sided semi-finished product spool to be positioned in baking oven 24 ~ 72 hours, oven temperature is 50 ~ 55 DEG C, and the adhesive in two-sided semi-finished product is solidified completely;
S6, EVA layer composite steps, two-sided semi-finished product spool side coating EVA also forms one side compound semi-finished product spool through overheated baking and pressing;
S7, acrylic acid anticorrosive coat composite steps, one side compound semi-finished product side coating acrylic acid anticorrisive agent also forms two-sided compound semi-finished product spool through overheated baking and pressing;
S8, indoor stating step, be positioned over two-sided compound semi-finished product spool in rest chamber and leave standstill more than 24 hours, acrylic acid anticorrosive coat is solidified;
S9, cut coiling step, two-sided compound semi-finished product spool is divided and is cut to plural stock and synchronous coiling is the anticorrosion screened film of plural finished product.
2. the production technology of a kind of anticorrosion screened film according to claim 1, it is characterized in that: in described step S1, described adhesive by polyurethane adhesive, polyurethane adhesive curing agent and ethyl acetate according to mass ratio (8 ~ 10): (1 ~ 2): (8 ~ 10) are carried out proportioning and fully mixed rear obtained.
3. the production technology of a kind of anticorrosion screened film according to claim 1, is characterized in that described step S2 comprises the steps:
First aluminium foil layer is arranged on aluminium foil emptying roller, and pet layer is arranged on PET emptying roller, and wherein, the unwinding tension of aluminium foil emptying roller is the unwinding tension of 0 ~ 40N, PET emptying roller is 10 ~ 50N,
Aluminium foil emptying roller release aluminium foil layer, the mode that aluminium foil layer contacts with doubling roller surface with non-corona matsurface after one side corona forms corona matsurface enters doubling roller,
PET emptying roller release pet layer, first pet layer forms corona matsurface through one side corona, then application of adhesive on the corona matsurface of pet layer is taken turns through coating area by mesh, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along pet layer, the mode finally contacted with doubling roller surface with the one side of uncoated adhesive enters doubling roller
Aluminium foil layer is synchronous with the pet layer of coated adhesive by doubling roller, and the one side semi-finished product formed after laminating roll in collecting roller, forms one side semi-finished product spool,
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 30 ~ 50 DEG C of heat drum temperature, and the half-finished speed of service of one side is 50 ~ 90 ms/min;
Wherein, oven interior has the temperature controlled region of two temperature increment by direction along pet layer, and the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, and the half-finished speed of service of one side is 75 ms/min.
4. the production technology of a kind of anticorrosion screened film according to claim 1, is characterized in that described step S4 comprises the steps:
First aluminium foil layer is arranged on aluminium foil emptying roller, and one side semi-finished product are arranged on PET emptying roller, and wherein, the unwinding tension of aluminium foil emptying roller is the unwinding tension of 0 ~ 40N, PET emptying roller is 10 ~ 50N,
Aluminium foil emptying roller release aluminium foil layer, the mode that aluminium foil layer contacts with doubling roller surface with non-corona matsurface after one side corona forms corona matsurface enters doubling roller,
PET emptying roller release one side semi-finished product, first the half-finished pet layer one side of one side forms corona matsurface through one side corona, then application of adhesive on the corona matsurface of pet layer one side is taken turns through coating area by mesh, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along one side semi-finished product, the mode finally contacted with doubling roller surface with the one side of uncoated adhesive enters doubling roller
Aluminium foil layer is synchronous with the one side semi-finished product of coated adhesive by doubling roller, and the two-sided semi-finished product formed after laminating roll in collecting roller, form two-sided semi-finished product spool,
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 30 ~ 50 DEG C of heat drum temperature, and two-sided half-finished speed of service is 50 ~ 90 ms/min;
Wherein, oven interior has the temperature controlled region of two temperature increment by direction along one side semi-finished product, and the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, and two-sided half-finished speed of service is 70 ms/min.
5. the production technology of a kind of anticorrosion screened film according to claim 1, is characterized in that described step S6 comprises the steps:
Two-sided semi-finished product spool is arranged on PET emptying roller, PET emptying roller discharges two-sided semi-finished product, the unwinding tension of PET emptying roller is 0 ~ 50N, first two-sided semi-finished product side aluminium foil layer forms corona matsurface through one side corona, then on the corona matsurface of aluminium foil layer, EVA jelly is applied by mesh wheel through coating area, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along two-sided semi-finished product, again through doubling roller, finally roll in collecting roller, form one side compound semi-finished product spool;
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 10 ~ 25 DEG C of heat drum temperature, and the half-finished speed of service of one side compound is 50 ~ 90 ms/min.
6. the production technology of a kind of anticorrosion screened film according to claim 5, it is characterized in that: in described step S6, oven interior at least has the temperature controlled region of two temperature increment by direction along two-sided semi-finished product, the temperature range of two temperature controlled region is respectively 45 ~ 55 DEG C, 55 ~ 65 DEG C, and the half-finished speed of service of one side compound is 70 ms/min.
7. the production technology of a kind of anticorrosion screened film according to claim 1, is characterized in that described step S7 comprises the steps:
One side compound semi-finished product are arranged on PET emptying roller, PET emptying roller release one side compound semi-finished product, the unwinding tension of PET emptying roller is 0 ~ 50N, first the aluminium foil layer of the non-compound EVA side of one side compound semi-finished product forms corona matsurface through one side corona, then on the corona matsurface of aluminium foil layer, acrylic acid anticorrisive agent is applied by mesh wheel through coating area, carry out heat through baking oven again to dry, described oven interior at least has the temperature controlled region of two temperature increment by direction along one side compound semi-finished product, again through doubling roller, finally roll in collecting roller, form two-sided compound semi-finished product spool,
Described doubling roller by fixing roller and mobile roller forms, fixing between roller and mobile roller pressure be 0.4 ~ 0.6MPa, and resting barrel has 10 ~ 25 DEG C of heat drum temperature, and the half-finished speed of service of two-sided compound is 20 ~ 40 ms/min.
8. the production technology of a kind of anticorrosion screened film according to claim 7, it is characterized in that: in described step S7, oven interior has the temperature controlled region of two temperature increment by direction along one side compound semi-finished product, the temperature range of two temperature controlled region is respectively 100 ~ 120 DEG C, 101 ~ 130 DEG C, and the half-finished speed of service of two-sided compound is 30 ms/min.
9. the production technology of a kind of anticorrosion screened film according to claim 1, is characterized in that: the corona value of the corona matsurface of described aluminium foil layer, the corona matsurface of pet layer is 52 dyne.
10. the production technology of a kind of anticorrosion screened film according to claim 1, is characterized in that: in described step S9, two-sided compound semi-finished product spool cuts into the anticorrosion screened film that width is 20 ~ 35mm.
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| CN114536820A (en) * | 2020-11-24 | 2022-05-27 | 张家港市翔华铝业有限公司 | Production process of anti-corrosion shielding film |
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