According to reports, this kind of safety automatic protector was successfully developed by Hunan peasant inventor He Liangcai. When the vehicle is about to face a frontal collision, it can be early warning according to the speed, and the automatic flameout and automatic braking can be realized quickly. After the collision, the huge energy generated by the collision is shunted, attenuated and transmitted through the established safe passage, thereby effectively protecting the personal safety of the occupant and minimizing the damage degree of the vehicle. The device is available in a variety of sizes for passenger cars, commercial vehicles and various professional vehicles, as well as for all types of self-propelled construction machinery.
The technical invention has carried out many collision tests and academic discussions in Tsinghua University, Hunan University, National Defense University and other scientific research institutes. It has been highly praised by authoritative experts in the industry and believes that its basic principles and structural performance have reached the international leading level. At present, the original technical achievements with all independent intellectual property rights have won five national invention patents and two international patents, and won several international invention awards. Its products were issued by the Hunan Provincial Technical Supervision Bureau for the implementation of automotive standards.
elt blowing is a conventional fabrication method of micro- and nanofibers where a polymer melt is extruded through small nozzles surrounded by high speed blowing gas. The randomly deposited fibers form a nonwoven sheet product applicable for filtration, sorbents, apparels and drug delivery systems. The substantial benefits of melt blowing are simplicity, high specific productivity and solvent-free operation. Choosing an appropriate combination of polymers with optimized rheological and surface properties, scientists have been able to produce melt-blown fibers with an average diameter of down to 36nm.
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