CN111251699A - Surface film coating method for railway vehicle interior plate - Google Patents
Surface film coating method for railway vehicle interior plate Download PDFInfo
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- CN111251699A CN111251699A CN202010094177.8A CN202010094177A CN111251699A CN 111251699 A CN111251699 A CN 111251699A CN 202010094177 A CN202010094177 A CN 202010094177A CN 111251699 A CN111251699 A CN 111251699A
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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
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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
- B32B37/10—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
- B32B37/1018—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 using only vacuum
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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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/02—Temperature
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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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/04—Time
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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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/60—In a particular environment
- B32B2309/68—Vacuum
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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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
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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
- B32B2605/00—Vehicles
- B32B2605/10—Trains
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a surface coating method for an interior plate of a railway vehicle, which comprises the following steps: placing the film covering tool into a film covering device; coating glue on the surface of the to-be-coated inner plate to be coated with the film, and then matching the glue in the film coating tool; the edge of the film is positioned on the film covering device, and the middle part of the film covers the surface to be covered on the interior plate to be covered with the film; the film laminating tool and the film laminating device are integrally placed into a film laminating machine after the film laminating inner plate and the film are assembled, and the film laminating inner plate and the film laminating film are molded; therefore, the technical problems of inconvenient surface film coating operation, poor product quality controllability, relatively high manufacturing cost and unattractive appearance are solved, the technical effects of relatively convenient operation, relatively good product quality controllability, relatively low manufacturing cost and attractive appearance are achieved, and the method is favorable for wide popularization.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a surface coating method for an inner plate of a rail vehicle.
Background
At present, most of surface treatments of interior products of railway vehicles are paint spraying or cold film pasting; the painted product cannot be textured, lacks layering and is not beautiful; although the cold film can realize texture, the cold film can only be used for sticking simple-modeling products, but cannot be used for sticking complex-modeling products such as side wall plates, middle top plates and side top plates, or the cold film is generally manually operated, is greatly influenced by human factors, has poor product quality controllability and relatively high manufacturing cost, and is subjected to film sticking, film bulging, local stretching texture deformation and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a surface film coating method for an interior plate of a railway vehicle, and aims to solve the technical problems of inconvenient surface film coating operation, poor product quality controllability, relatively high manufacturing cost and unattractive appearance in the prior art.
The technical scheme for realizing the purpose of the invention is as follows: a surface coating method for an interior plate of a railway vehicle comprises the following steps:
placing the film covering tool into a film covering device;
coating glue on the surface of the to-be-coated inner plate to be coated with the film, and then matching the glue in the film coating tool;
the edge of the film is positioned on the film covering device, and the middle part of the film covers the surface to be covered on the interior plate to be covered with the film;
the film laminating tool, the film laminating device, after the film laminating inner plate and the film are assembled, the film laminating device is integrally placed into a film laminating machine, and the film laminating inner plate and the film laminating device are molded.
Further: the film laminating device comprises an accommodating piece, the bottom of the accommodating piece is provided with an air suction port, and the film laminating tool and the to-be-laminated interior plate can be accommodated in the air suction port; and a pressing member coupled to the receiving member and capable of pressing an edge of the film.
Further: the glue is hot melt glue, polyurethane glue, acrylic acid glue, structural glue or water-based glue.
Further: the film is a polyethylene film, a polypropylene film, a polyvinyl chloride film, a polystyrene film or a polyamide film.
Further: the set temperature in the film covering machine is 120-150 ℃, the film covering machine is preheated for 2-300s, the film covering device can be vacuumized, and the vacuum state is kept for 2-300 s.
By adopting the technical scheme, the invention has the following beneficial effects: compared with the related art, the surface film coating method for the inner installation plate of the railway vehicle comprises the steps of positioning the inner installation plate to be coated on a film coating tool; the film coating device can position a film to cover the surface to be coated on the to-be-coated internal plate, and then the film is integrally placed in the film coating machine; therefore, the technical problems of inconvenient surface film coating operation, poor product quality controllability, relatively high manufacturing cost and unattractive appearance are solved, the technical effects of relatively convenient operation, relatively good product quality controllability, relatively low manufacturing cost and attractive appearance are achieved, and the method is favorable for wide popularization.
Drawings
FIG. 1 is an exploded view of an embodiment of the present invention;
FIG. 2 is an exploded view of a film coating tool and an interior plate to be coated according to an embodiment of the present invention;
FIG. 3 is an exploded view of a film covering device in an embodiment of the present invention;
FIG. 4 is a schematic view of a partial three-dimensional structure of a film covering device according to an embodiment of the present invention;
FIG. 5 is a schematic three-dimensional structure diagram of an interior board to be coated with a film, a schematic three-dimensional structure diagram of a side wall board according to an embodiment of the present invention;
FIG. 6 is a second schematic three-dimensional structure of an inner board to be coated with a film, and a schematic three-dimensional structure of a middle top board according to an embodiment of the present invention;
FIG. 7 is a second three-dimensional structure diagram of an interior plate to be coated with a film according to an embodiment of the present invention, and a third three-dimensional structure diagram of a middle top plate;
FIG. 8 is a third schematic view of a three-dimensional structure of an inner plate to be coated and a third schematic view of a side top plate according to an embodiment of the present invention;
FIG. 9 is a third schematic view of a three-dimensional structure of an inner plate to be coated and a third schematic view of a side top plate according to an embodiment of the present invention;
FIG. 10 is a fourth illustration showing the three-dimensional structure of the interior panel to be coated, the three-dimensional structure of the lower window panel in the embodiment of the present invention;
FIG. 11 is a schematic three-dimensional structure of an interior plate to be coated with a film, and a schematic three-dimensional structure of a door pillar cover plate according to an embodiment of the present invention;
FIG. 12 is a schematic three-dimensional structure of an interior plate to be coated with a film, and a schematic three-dimensional structure of a door pillar cover plate according to an embodiment of the present invention;
in the figure: 10. the film laminating method comprises the steps of film laminating, 20, a film laminating device, 21, an accommodating part, 211, an air suction port, 22, a pressing part, 30, an inner plate to be laminated and 40.
Detailed Description
In order that the present invention may be more readily and clearly understood, there shall now be described in detail the present invention with reference to the following examples taken in conjunction with the accompanying drawings;
the invention relates to a surface film coating method for an interior plate of a railway vehicle, which solves the technical problems of inconvenient surface film coating operation, poor product quality controllability, relatively high manufacturing cost and unattractive appearance in the related technology, and achieves the positive effects of relatively convenient operation, relatively good product quality controllability, relatively low manufacturing cost and attractive appearance, and the general idea is as follows:
as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12; a surface coating method for an interior plate of a railway vehicle comprises the following steps:
the film covering tool 10 is placed in the film covering device 20;
coating glue on the surface to be coated on the film-coated inner plate 30, and then matching in the film-coating tool 10, wherein the glue is hot melt glue, polyurethane glue, acrylic glue, structural glue or water-based glue;
the edge of the film 40 is positioned on the film laminating device 20, and the middle part of the film 40 covers the surface to be laminated on the to-be-laminated interior plate 30, wherein the film 40 is a thermoplastic film such as a polyethylene film, a polypropylene film, a polyvinyl chloride film, a polystyrene film or a polyamide film;
the film laminating tool 10, the film laminating device 20, the to-be-laminated inner panel 30 and the film 40 are integrally placed into a film laminating machine after being assembled, the set temperature in the film laminating machine is 120-150 ℃, the film laminating machine is preheated for 2-300s, the film laminating device 20 can be vacuumized, and the vacuum state is kept for 2-300s, so that the to-be-laminated inner panel 30 and the film 40 are subjected to film laminating molding;
specifically, in implementation, the interior plate 30 to be coated is positioned on the coating tool 10; the to-be-coated built-in plate 30 and the coating tool 10 are positioned in the coating device 20 together, and the coating device 20 can position the film 40, so that the film 40 covers the surface, needing to be coated, on the to-be-coated built-in plate 30, and then the whole body is put into the coating machine, and the film 40 is gradually attached to the surface, needing to be coated, on the to-be-coated built-in plate 30 by controlling the temperature of the coating machine and controlling the vacuum state in the coating device 20, so that the purpose of surface coating is achieved; thereby overcoming the technical problems of inconvenient surface film coating operation, poor product quality controllability, relatively high manufacturing cost and unattractive appearance, and achieving the technical effects of relatively convenient operation, relatively good product quality controllability, relatively low manufacturing cost and beautiful appearance;
specifically, as shown in fig. 1 and 2; the film coating tool 10 is of a rectangular structure, the middle part of the film coating tool is provided with a cavity which can be attached to the shape of the lower surface of the to-be-coated internal plate 30, the shape of the film coating tool can be tightly matched with the film coating device 20 according to normal tolerance, and the cavity can also be tightly matched with the lower surface of the to-be-coated internal plate 30 according to normal tolerance, so that the to-be-coated internal plate 30 can be reliably positioned on the film coating tool 10 and can be reliably connected into the film coating device 20 through the film coating tool 10, the position cannot be moved during film coating, and the film coating precision can be guaranteed;
specifically, as shown in fig. 1, 2, 3, 4; a film coating device 20 used in a surface film coating method of a railway vehicle interior plate, wherein the film coating device 20 comprises a containing part 21, an air suction opening 211 is arranged at the bottom of the containing part, and the film coating tool 10 and the interior plate 30 to be coated can be contained; and a pressing member 22 attached to the receiving member 21 and capable of pressing an edge of the film 40; in implementation, the accommodating part 21 comprises an accommodating cavity, an inner concave cavity with a cuboid structure and an outer shape, and the inner concave cavity can accommodate the positioning film coating tool 10 and the to-be-coated inner panel 30; the side plate is of a cuboid frame structure, is connected to the top of the accommodating cavity and is used for connecting the pressing piece 22;
the pressing member 22 has a rectangular frame structure, and is bonded to the side plates or screwed thereto, and presses the edge of the film 40, so that the film 40 can be reliably positioned;
the air suction port 211 comprises a section of straight pipe, and a section of straight pipe is welded at the top of the accommodating part 21 and can be communicated with the inner concave cavity;
the hole plate 23 is arranged in the concave cavity of the accommodating part 21 and provided with a plurality of small air holes, the hole plate is padded in the accommodating part 21 and arranged between the bottom of the film coating tool 10 and the accommodating part 21 to separate the air suction port 211 from the film coating tool 10, and the blocking can be generated during vacuum pumping, so that air in the film coating device 20 can be slowly and uniformly pumped out, the film 40 can be uniformly attached to and coated on the surface of the to-be-coated internal plate 30, the probability of generating air holes on the film 40 and the surface of the to-be-coated internal plate 30 is reduced, the controllability of product quality is good, the product forming quality is relatively high, the manufacturing cost is equivalently reduced, and the appearance is attractive;
in order to make the operation more convenient, the magnet piece 24 can be embedded on the top of the side plate on the accommodating piece 21, the magnet piece 24 is in a cuboid frame structure, is matched with the shape of the pressing piece 22, has enough contact area with the pressing piece 22, and can be reliably adsorbed with the magnet piece 24 when the pressing piece 22 presses the edge of the film 40, so that the pressing piece 22 is relatively convenient to mount and dismount, and can reliably press the edge of the film 40, and other parts of the film 40 can be conveniently attached to and coated on the surface of the to-be-coated built-in plate 30;
specifically, as shown in fig. 1, 2, 5, 6, 7, 8, 9, 10, 11, 12; the types of the to-be-coated interior plates 30 are many and cannot be listed one by one, and several of the to-be-coated interior plates are selected, such as a side wall plate, a middle top plate, a side top plate, a window lower wall plate and a door upright column cover plate, during actual operation, only the coating tool 10 with cavities of different shapes is selected according to the types of the to-be-coated interior plates 30, and coating can be realized according to the method disclosed by the invention, and after seeing the content disclosed by the invention, a person skilled in the art can directly and unambiguously know how to set the to-be-coated interior plates without creative labor and excessive tests;
specifically, as shown in FIG. 1; the film 40 is in a cuboid structure, so that the film can be conveniently compressed by the compression piece 22, and meanwhile, the film can have enough area to cover the surface of the to-be-coated inner plate 30, which needs to be coated with a film, and a relatively closed space is formed between the film 40 and the film coating device 20, when the vacuum pumping is performed, the film 40 is driven by air gradually sucked to be slowly attached to the surface of the to-be-coated inner plate 30, which is beneficial to ensuring the film coating effect;
specifically, the laminator is a structure in the prior art, such as a commonly used vacuum laminator, and after seeing the disclosure of the present invention, a person skilled in the art can directly and unambiguously know how to select a laminator for use without creative labor and undue experiment;
specifically, as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12; a surface coating method for an interior plate of a railway vehicle comprises the following steps:
coating glue on the surface to be coated on the to-be-coated interior plate 30, and then matching in the coating tool 10;
the film coating tool 10 and the to-be-coated interior plate 30 are placed into the film coating device 20 together;
the edge of the film 40 is positioned on the film coating device 20, and the middle part of the film 40 covers the surface to be coated on the interior plate 30 to be coated;
the film laminating tool 10, the film laminating device 20, the to-be-laminated inner panel 30 and the film 40 are integrally placed into a film laminating machine after being assembled, the set temperature in the film laminating machine is 120-150 ℃, the film laminating machine is preheated for 2-300s, the film laminating device 20 can be vacuumized, and the vacuum state is kept for 2-300s, so that the to-be-laminated inner panel 30 and the film 40 are subjected to film laminating molding;
specifically, the method is not limited to having steps, and can be changed according to the habit of an operator, and after seeing the disclosure of the present invention, a person skilled in the art can directly and unambiguously know how to set the method without creative labor and without undue experiment;
example one, coating of the side wall panel:
as shown in fig. 1, 2, 3, 4, 5;
the film covering tool 10 is placed in the film covering device 20;
coating glue on the surface of the side wall plate needing to be coated with the film, and then matching the side wall plate in a film coating tool 10, wherein the glue is hot melt adhesive;
the edge of the film 40 is positioned on the film covering device 20, the middle part of the film 40 covers the surface to be covered on the side wall plate, and the film 40 is a polyethylene film;
after the film covering tool 10, the film covering device 20, the side wall plate and the film 40 are assembled, the whole body is placed into a film covering machine, the set temperature in the film covering machine is 150 ℃, preheating is carried out for 120s, the film covering device 20 can be vacuumized, the vacuum state is kept for 180s, and the side wall plate and the film 40 are formed in a film covering mode;
example two, centering the coating of the top plate:
as shown in fig. 1, 2, 3, 4, 6, 7;
the film covering tool 10 is placed in the film covering device 20;
coating glue on the surface of the middle top plate needing to be coated, and then matching the surface in the coating tool 10, wherein the glue is water-based glue;
the edge of the film 40 is positioned on the film laminating device 20, the middle part of the film 40 covers the surface to be laminated on the middle top plate, and the film 40 is a polypropylene film;
after the film laminating tool 10, the film laminating device 20, the middle top plate and the film 40 are assembled, the whole body is placed into a film laminating machine, the set temperature in the film laminating machine is 150 ℃, the preheating is carried out for 100s, the film laminating device 20 can be vacuumized, the vacuum state is kept for 100s, and the middle top plate and the film 40 are subjected to film laminating forming;
example three, capping of the side roof:
as shown in fig. 1, 2, 3, 4, 8, 9;
the film covering tool 10 is placed in the film covering device 20;
coating glue on the surface of the side top plate to be coated with the film, and then matching the surface in the film coating tool 10, wherein the glue is acrylic glue;
the edge of the film 40 is positioned on the film laminating device 20, the middle part of the film 40 covers the surface to be laminated on the side top plate, and the film 40 is a polyvinyl chloride film;
after the film laminating tool 10, the film laminating device 20, the side top plate and the film 40 are assembled, the whole body is placed into a film laminating machine, the set temperature in the film laminating machine is 150 ℃, the preheating is carried out for 110s, the film laminating device 20 can be vacuumized, the vacuum state is kept for 120s, and the side top plate and the film 40 are subjected to film laminating forming;
example four, coating of a siding under a window:
as shown in fig. 1, 2, 3, 4, 10;
the film covering tool 10 is placed in the film covering device 20;
coating glue on the surface of the lower wallboard of the window, which needs to be coated with a film, and then matching the surface in the film coating tool 10, wherein the glue is polyurethane glue;
the edge of the film 40 is positioned on the film coating device 20, the middle part of the film 40 covers the surface of the lower wallboard of the window to be coated with the film, and the film 40 is a polystyrene thin film;
after the film laminating tool 10, the film laminating device 20, the window lower wall plate and the film 40 are assembled, the whole body is placed into a film laminating machine, the set temperature in the film laminating machine is 150 ℃, the preheating is carried out for 90s, the film laminating device 20 can be vacuumized, the vacuum state is kept for 120s, and the window lower wall plate and the film 40 are subjected to film laminating forming;
example five, film coating of door pillar cover plate:
as shown in fig. 1, 2, 3, 4, 11, 12;
the film covering tool 10 is placed in the film covering device 20;
coating glue on the surface of the door upright post cover plate needing to be coated with a film, and then matching the glue in a film coating tool 10, wherein the glue is structural glue;
the edge of the film 40 is positioned on the film covering device 20, the middle part of the film 40 covers the surface of the door upright post cover plate needing film covering, and the film 40 is a polyamide film;
after the film laminating tool 10, the film laminating device 20, the door upright post cover plate and the film 40 are assembled, the whole body is placed into a film laminating machine, the set temperature in the film laminating machine is 130 ℃, the preheating is carried out for 200s, the film laminating device 20 can be vacuumized, the vacuum state is kept for 220s, and the door upright post cover plate and the film 40 are subjected to film laminating forming;
the working principle of the invention is as follows: in the implementation, the internal plate 30 to be coated is positioned on the coating tool 10; the to-be-coated built-in plate 30 and the coating tool 10 are positioned in the coating device 20 together, the coating device 20 can position the film 40, so that the film 40 covers the surface, needing to be coated, on the to-be-coated built-in plate 30, and then the whole body is placed in the coating machine, and the film 40 is gradually attached to the surface, needing to be coated, on the to-be-coated built-in plate 30 through controlling the temperature of the coating machine and controlling the vacuum state in the coating device, so that the purpose of surface coating is achieved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are only for convenience in describing the present invention or simplifying the description, but do not indicate that a specific orientation must be provided; the operation processes described in the embodiments are not absolute use steps, and may be adjusted accordingly when actually used.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs; the use of "first," "second," and the like in the description and in the claims is not intended to identify any order, quantity, or importance, but rather is used to distinguish one element from another, and similarly, the use of "a" or "an" and the like do not necessarily indicate a limitation of quantity, but rather indicate the presence of at least one of the referenced item, depending on the context of the embodiment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A surface coating method for an interior plate of a railway vehicle is characterized by comprising the following steps:
the film covering tool (10) is placed in the film covering device (20);
coating glue on the surface to be coated on the membrane-coating built-in plate (30) to be coated, and then matching in the membrane-coating tool (10);
the edge of the film (40) is positioned on the film covering device (20), and the middle part of the film (40) covers the surface to be covered on the film inner plate (30) to be covered;
the film laminating tool (10) and the film laminating device (20) are integrally placed into a film laminating machine after the film laminating inner plate (30) and the film (40) are assembled, and the film laminating inner plate (30) and the film (40) are subjected to film laminating and forming.
2. The surface coating method for the railway vehicle interior plate as claimed in claim 1, wherein: the film laminating device (20) comprises an accommodating part (21), the bottom of the accommodating part is provided with an air suction port (211) and can accommodate the film laminating tool (10) and the to-be-laminated inner plate (30); and a pressing member (22) attached to the receiving member (21) and capable of pressing an edge of the film (40).
3. The surface coating method for the railway vehicle interior plate as claimed in claim 1, wherein: the glue is hot melt glue, polyurethane glue, acrylic acid glue, structural glue or water-based glue.
4. The surface coating method for the railway vehicle interior plate as claimed in claim 1, wherein: the film (40) is a polyethylene film, a polypropylene film, a polyvinyl chloride film, a polystyrene film or a polyamide film.
5. The surface coating method for the railway vehicle interior plate as claimed in claim 1, wherein: the set temperature in the film laminating machine is 120-150 ℃, the preheating is carried out for 2-300s, the film laminating device (20) can be vacuumized, and the vacuum state is kept for 2-300 s.
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| CN202010094177.8A CN111251699A (en) | 2020-02-15 | 2020-02-15 | Surface film coating method for railway vehicle interior plate |
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| CN202010094177.8A CN111251699A (en) | 2020-02-15 | 2020-02-15 | Surface film coating method for railway vehicle interior plate |
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2020
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| CN2895046Y (en) * | 2006-01-13 | 2007-05-02 | 今创集团有限公司 | Track traffic vehicle built-in composite material |
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| CN104859673A (en) * | 2015-06-16 | 2015-08-26 | 青岛联诚宏达轨道交通设备有限公司 | Laminating process for section bar applied to standardized CRH train body |
| CN106166917A (en) * | 2016-08-19 | 2016-11-30 | 朱燕华 | A kind of surface treatment method of plastic fittings |
| CN210026296U (en) * | 2019-01-17 | 2020-02-07 | 蓝思科技（长沙）有限公司 | Protective film attaching jig |
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