Forming process of PC lighting board
DATE：2019/10/10 8:54:17 / READ： / SOURCE：This station
Forming process of PC lighting board
The production process of the PC board is extrusion molding, and the main equipment required is an extruder. Because the processing of PC resin is difficult, the requirements for production equipment are high. Before the material is extruded, it should be strictly dry to make the water content below 0.02%. Therefore, the extrusion equipment should be equipped with a vacuum drying hopper, sometimes several series. The temperature of the extruder body should be controlled at 230--250 °C, gradually increasing from the back to the front. The head used is a flat-slit slit head, which is then calendered and cooled.
In recent years, in order to meet the UV resistance requirements of PC boards, a thin layer containing UV-resistant additives is often applied to the surface of PC boards. This requires a two-layer co-extrusion process with a surface layer (including UV additives). And the bottom layer (excluding Uv additive) is compounded in the machine head and integrated into one after extrusion. In some cases, there is no dew drop requirement for the PC board. This requires an anti-drip coating on one side of the PC board.
Necessary explanation
(1) Classification of PC boards
There are many classification methods for PC boards. According to different classification standards, there are the following types:
1 According to the shape of the shape, there are solid plates, hollow plates and wave plates;
2 There are colorless transparent plates and colored transparent plates according to the appearance color;
3 According to the surface shape, there are light panels and embossed plates;
4 There are ordinary boards and anti-UV boards (UV boards) according to their performance. The UV board can be divided into a whole variety of anti-ultraviolet panels, single-sided anti-UV panels and double-sided anti-UV panels. In addition, in order to improve the surface hardness of the PC board, it is easy to scratch the traces, etc., often graft copolymerization or blending modification of PC, can also produce some new varieties, such as modified PC board. From the development trend, the UV board will replace the ordinary PC board.
(2) PC board application
PC board is mainly used in the field of building lighting and decoration, such as commercial buildings, hospitals, villas, entertainment venues, stadiums, exhibition centers and other building lighting skylights; parking lots, bus shelters, terminal buildings, swimming pools, telephone booths and other buildings. Lighting hoods; protective covers for high-end goods counters such as banks, jewelry stores, and watch shops; greenhouses, flower houses, agricultural greenhouses, lighting booths for factory buildings; billboards, explosion-proof shields, and soundproof panels for highways.
(3) Performance comparison between PC board and other transparent boards
At present, the transparent lighting materials used in the construction industry mainly include: PC board, plexiglass, wired glass, laminated glass, tempered glass, acrylic sheet, PS board, PVC board, etc., among which PC board has obvious advantages compared with other sheets. . The PC board is lightweight, reducing the quality of the building and reducing transportation costs.
The production process of the PC board is extrusion molding, and the main equipment required is an extruder. Because the processing of PC resin is difficult, the requirements for production equipment are high. Before the material is extruded, it should be strictly dry to make the water content below 0.02%. Therefore, the extrusion equipment should be equipped with a vacuum drying hopper, sometimes several series. The temperature of the extruder body should be controlled at 230--250 °C, gradually increasing from the back to the front. The head used is a flat-slit slit head, which is then calendered and cooled.
In recent years, in order to meet the UV resistance requirements of PC boards, a thin layer containing UV-resistant additives is often applied to the surface of PC boards. This requires a two-layer co-extrusion process with a surface layer (including UV additives). And the bottom layer (excluding Uv additive) is compounded in the machine head and integrated into one after extrusion. In some cases, there is no dew drop requirement for the PC board. This requires an anti-drip coating on one side of the PC board.
Necessary explanation
(1) Classification of PC boards
There are many classification methods for PC boards. According to different classification standards, there are the following types:
1 According to the shape of the shape, there are solid plates, hollow plates and wave plates;
2 There are colorless transparent plates and colored transparent plates according to the appearance color;
3 According to the surface shape, there are light panels and embossed plates;
4 There are ordinary boards and anti-UV boards (UV boards) according to their performance. The UV board can be divided into a whole variety of anti-ultraviolet panels, single-sided anti-UV panels and double-sided anti-UV panels. In addition, in order to improve the surface hardness of the PC board, it is easy to scratch the traces, etc., often graft copolymerization or blending modification of PC, can also produce some new varieties, such as modified PC board. From the development trend, the UV board will replace the ordinary PC board.
(2) PC board application
PC board is mainly used in the field of building lighting and decoration, such as commercial buildings, hospitals, villas, entertainment venues, stadiums, exhibition centers and other building lighting skylights; parking lots, bus shelters, terminal buildings, swimming pools, telephone booths and other buildings. Lighting hoods; protective covers for high-end goods counters such as banks, jewelry stores, and watch shops; greenhouses, flower houses, agricultural greenhouses, lighting booths for factory buildings; billboards, explosion-proof shields, and soundproof panels for highways.
(3) Performance comparison between PC board and other transparent boards
At present, the transparent lighting materials used in the construction industry mainly include: PC board, plexiglass, wired glass, laminated glass, tempered glass, acrylic sheet, PS board, PVC board, etc., among which PC board has obvious advantages compared with other sheets. . The PC board is lightweight, reducing the quality of the building and reducing transportation costs.
Author：admin