The major project of “Key Technology and System Integration of Electric Vehicles (Phase 1)†in the modern transportation technology field of the 863 Program has been accepted by the project of the research and development of the power system platform for pure electric commercial vehicles (M3/N3).
This topic was led by Beijing Institute of Technology, United China CITIC Guoan League Gugli Power Technology Co., Ltd., Beijing Pride New Energy Battery Technology Co., Ltd., Ocean Power New Power Technology Co., Ltd., Shanghai Electric Drive Co., Ltd., Beijing Polytechnic Huachuang Electric Vehicle Technology companies and other key companies in the electric vehicle industry chain have shared the same commitment. The total funding for the project is 39.12 million yuan, and China has allocated 19.12 million yuan.
Based on the relevant scientific and technological achievements of the “Eleventh Five-Year Planâ€, the project conducted in-depth research and technical research on the key technologies of the power system of pure electric commercial vehicles, completed the engineering design of the power system technology platform for pure electric commercial vehicles, and realized commercial vehicles. The serialization of the platform. The project developed a high-performance permanent magnet synchronous motor and developed a 4-speed electric commercial vehicle transmission to form a new integrated power drive and transmission system assembly; an interchangeable lithium-ion battery system, an on-board bus network, and a control system were developed. Electric attachment system. The research results have been popularized and applied by Beiqi Futian, FAW Dalian, FAW Qingdao, etc. Six models of finished vehicles have obtained national announcements, and demonstration runs of pure electric buses and electric electric sanitation vehicles have been carried out in Beijing. Based on the research results of the project, the “series of key technologies and industrialization of pure electric vehicles†won the 2013 Beijing Science and Technology Award.
The main function of the edge banding is to seal the cross-section of the board, so as to avoid the damage of the board and the adverse factors (mainly moisture) in the process of use and prevent the formaldehyde inside the board from volatilizing, and at the same time achieve the effect of beautiful decoration.
The product has the following main features: smooth surface, no blistering, no ribbing, moderate gloss, smooth surface and back surface, uniform thickness, uniform width, reasonable hardness, high elasticity, good quality, strong wear resistance, trimmed and sealed The color of the side and the side is close to the surface color, not whitish, good gloss, and the overall color of the finished furniture is coordinated.
Judge good or bad
1. Look at the hue and surface roughness of the edge banding strip. The color of the surface of a good edge banding strip is also very important. Whether the color is close to the customized product and is gorgeous. If the surface is very rough and there are pull marks, the quality is definitely not much better. This is the surface quality of the edge banding strip. It has nothing to do with the quality of the inner material of the edge banding, mainly the production process of the edge banding factory and the production technical skills of the employees. A good edge banding strip is: the surface must be smooth, no blistering or seldom bubbling, no drawing or few drawing, moderate gloss, not too shiny or too matte (unless there are special requirements).
2. Check the flatness of the surface and bottom of the edge banding and whether the thickness is uniform, otherwise it will cause the joint between the edge band and the board, the glue line is too eye-catching or the gap between the board and the edge band is too large, which will affect the overall beauty. Details determine success or failure, and often a small detail problem may bring an embarrassing situation where the overall effect is not good.
3. Whether the edge trimming is whitish, whether the surface of the bent edge strip is severely whitish, and whether the ground color of the trimming strip is close to the surface color of the board in question. PVC Edge Banding strips are mainly made of PVC and Calcium Carbonate plus additives. If the calcium carbonate content is too high, whitening of the edge banding and bending will occur, which proves that the quality of such products is not good.
4. Whether the strength is okay and whether there is elasticity. High strength means good wear resistance, and the corresponding quality is better. Too high strength also means increased processing difficulty. Low elasticity means low wear resistance and low aging resistance. In addition, according to actual production needs, manual trimming is generally required, and soft spots can be made appropriately, and the automatic edge banding machine can make hard points appropriately.
5. Whether the adhesive is applied evenly and whether it is easy to fall off during use.
6. Smell whether the PVC edge banding strips taste or not. Products produced with good quality raw materials generally have a small taste. If the taste is too large, it means that the quality of the raw materials used in production is relatively poor.
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