Laminated steel sheet processing

The color steel lamination method is to heat-compress and laminate the metal sheet with the plastic film on the laminating machine after surface pretreatment. The process can be divided into the following steps:
1) Metal plate surface treatment: Metal plate surface treatment In order to bond the laminated film and the metal plate firmly, it is necessary to pre-treat the surface of the metal plate first, that is, to remove the oil stains and sundries on the surface. For tinplate, since the surface is relatively clean, it can generally be cleaned by vacuuming.
2) Metal sheet conveying: Metal sheet conveying Before the surface treatment of the metal sheet, the coiled sheet should be unrolled, and after the surface treatment, the metal sheet should be sent to the lamination equipment for lamination. These tasks are all done with conveyors.
3) Printing of laminated film: printing of laminated film Laminated film can be printed in advance according to the needs of users. The printing of plastic film is currently a very mature process, which can print patterns of various colors. The printed film is rolled into a roll for easy use.
4) Laminated film delivery.
5) Pressurize the upper membrane.
6) The lower membrane is pressurized.
7) Heat lamination: Heat lamination sends the plastic lamination film and the metal plate into the middle of the upper and lower lamination rollers at the same time, and the upper and lower rollers are heated by the heating system of the heat lamination device to generate a high temperature of 250°C, so that the plastic film Under the pressure of the upper and lower rollers and high temperature, they are melted together.
8) Trimming of waste film.
9) Lamination quality monitoring: After the lamination is completed, the quality monitoring will be carried out immediately to automatically check whether there are problems such as blistering, separation, and discoloration on the surface of the lamination board. If there is any problem, it will immediately feedback and automatically adjust each parameter to Improve quality.
10) Waste film recycling: waste film trimming Cut the waste film around the film after lamination, and send the waste film directly to the waste film recycling device.
11) Rewinding of laminated boards: Rewinding of laminated boards to arrange or rewind the trimmed laminated boards so as to be sent to the next canning process.