A kind of PET laminating adhesive galvanized steel composite plates applied to ultra-thin liquid crystal TV set backboard
Technical field
The utility model belongs to sheet metal technical field, is related to a kind of composite plate, and more particularly to a kind of PET laminating adhesives are zinc-plated
Steel composite board.
Background technology
Liquid crystal display television back traditional at present is combined with plastic casing or plastics and galvanized iron sheet, the thickness of television set
Degree is general between 5~10 centimetres, and newest ultrathin TV set realizes LCDs and directly joined with television backboard
The structure of body, gross thickness only has 6.5~7 millimeters, and television backboard of new generation typically all uses the plastic-aluminum of 2.3 mm of thickness
Plate, but the intensity of aluminium-plastic panel can not fully meet the load-bearing requirements of television set installation, while TV backboard needs to be consolidated with screw
Fixed, screw is easily damaged the face coat of aluminium-plastic panel when fixing, and influences attractive in appearance.
The content of the invention
The purpose of this utility model is can both to meet liquid there is provided a kind of for the above-mentioned problems in the prior art
The load-bearing requirements that brilliant TV is installed, while the PET laminating adhesives galvanized steel for solving screw fixation destruction plastic-aluminum plate surface coating again is answered
Plywood.
The purpose of this utility model can be realized by following technical proposal:A kind of PET laminating adhesives galvanized steel composite plate, it is special
Levy and be, include being provided with one layer of fire prevention material, described fire prevention material between the galvanized steel of double-decker, two layers described of galvanized steel
Polymeric membrane is respectively arranged between two layers of galvanized steel, wherein one layer described galvanized steel outer surface is provided with one layer of PET film,
Pasted between described PET film and galvanized steel by PUR.
In a kind of above-mentioned PET laminating adhesives galvanized steel composite plate, described PET film outer surface is sticked and has layer protecting film.
In a kind of above-mentioned PET laminating adhesives galvanized steel composite plate, described galvanized steel thickness is 0.3mm.
In a kind of above-mentioned PET laminating adhesives galvanized steel composite plate, described fire prevention material thickness is 1.4mm.
Compared with prior art, this PET laminating adhesives galvanized steel composite plate can prevent liquid crystal TV set backboard from falling the problem of painting
It is more preferable with practicality, and highlight the diversified advantage of PET film fancy, color.
Brief description of the drawings
Fig. 1 is the structural representation of this PET laminating adhesive galvanized steel composite plates.
In figure, 1, galvanized steel;2nd, fire prevention material;3rd, polymeric membrane;4th, PET film;5th, diaphragm.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, the composite plate of this PET laminating adhesives galvanized steel 1 is included between the galvanized steel 1 of double-decker, two layers of galvanized steel 1
One layer of fire prevention material 2 is provided with, polymeric membrane 3 is respectively arranged between fire prevention material 2 and two layers of galvanized steel 1, wherein one layer of galvanized steel 1
Outer surface is provided with one layer of PET film 4, is pasted between PET film 4 and galvanized steel 1 by PUR.
This composite plate makes three traditional rollers are compound two rollers into and is combined, and the gap between two rollers is adjusted into the same of plank to be done
Sample thickness, then fire prevention material 2 is directly got between two rollers, directly forms steel-plastic plate, utilized on the steel-plastic plate surface being combined
The remaining temperature that 110 DEG C -135 DEG C of composite surface is covered with the PET film 4 for scribbling PUR again(The melt temperature of PUR is 105
℃), then it is cooled to less than 40 DEG C in the enterprising sector-style of streamline, then carry out deburring and cut required size.Traditional fire prevention
Material 2 needs to be pressed into core plate after extruding, and common tractive force reaches more than 200KG, therefore core plate on conventional composite machine production line
It is easy to break, this composite plate will prevent fires using the method for co-extrusion expects that 2 directly get into the middle of two layers of plate of galvanized steel 1, is not required to be pressed into glue
Plate, can thoroughly solve the phenomenon of resolution core plate.
Using traditional technique can only clad aluminium and aluminium sheet, because the heat conductivility of steel does not reach the thermal conductivity of aluminium much
Can, so removing clad steel plate by legacy equipment, compound tense heat not enough causes peel strength not enough, and the utility model is used
Compound co-extrusion pattern is combined using the remaining temperature of fire prevention material 2, and such combined temp is higher by than traditional combined temp
50-70 DEG C, the compound temperature needs of steel are fully met, are pressed into while eliminating tradition after plastic core ability again by six pairs of heat conduction
Electricity needed for the high temperature combination process of roller, has reached more than 60% energy-saving effect.
The utility model solves liquid crystal display television back gold using PET film 4 is directly covered with the plate of galvanized steel 1
Category screw is fixed and falls the problem of painting, and highlights the fancy of PET film 4, the variation of color, the advantage of individual character.
Further describe in detail, the outer surface of PET film 4, which is sticked, layer protecting film 5, the thickness of galvanized steel 1 is 0.3mm, fire prevention material 2 is thick
Spend for 1.4mm.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used the terms such as galvanized steel 1, fire prevention material 2, polymeric membrane 3, PET film 4, diaphragm 5 herein,
It is not precluded from the possibility using other terms.It is new just for the sake of more easily describing and explaining this practicality using these terms
The essence of type;Any additional limitation is construed as all to disagree with the utility model spirit.