2021-11-23 10:05| 发布者: steelfu4mo| 查看: 860| 评论: 0 |原作者: 佛山万庆物资
Blackboard does not specifically refer to the black board surface, the traditional blackboard is a plane that can be written repeatedly with chalk, the board surface is hard, mostly used for teaching.Blackboards are mostly classified by color as black, dark green, white or beige.The materials for making the blackboard are wood, cement, frosted glass, color-coated steel plate, composite material plate, metal steel, etc. In addition to choosing the blackboard material, we also should choose different types and functions according to the needs.
Blackboard color coated steel plate with high quality alloy steel plate coated with wear resistance coating, plate surface thickness of 0.3mm-0.4mm, color coated steel plate material board wear resistance, do not fall off, do not fade, durable, good writing feel, clear handwriting, easy to write, easy to test, less dust.
There is also a common blackboard material is metal steel blackboard.Generally, magnetic color coated steel plate is made, and the plate thickness is mostly between 0.2mm—0.4mm. This material has wear resistance, no falling off, no fade, durability, and good writing feel, clear handwriting, easy to write and easy to wipe.The inner core material is seven layers of silenced and damp-proof corrugated paper, the back plate is rust-proof hot galvanized plate, and the frame is Xiangbin color high-strength electrophoretic aluminum alloy, beautiful and generous.
Why is the blackboard mostly dark green?
Because compared with the traditional pure black blackboard, the dark green blackboard can make the contrast between the colored chalk and the blackboard smaller, has more eye protection, reduce visual fatigue, the education bureaus of some areas have issued the use of green blackboard regulations, to protect children's vision.
In general, although the materials and functions of different blackboards are different, they do not affect the use needs, so we mainly consider the feeling of use, such as writing feel, durability, the viewer's feelings and so on.From the perspective of cost performance and use, it is more recommended to color coated steel plate material of green blackboard, this kind of products are also the most mainstream product classification.Foshan Wanqing Materials Co., Ltd. also always has a dark green 0.3-0.4mm thick blackboard with color coated steel plate, the distribution of domestic and foreign steel mills, there is always a suitable for you!Welcome to call or WeChat consultation ~