Safety helmet is a protective product to prevent impact from hurting the head. Hat worn by workers during construction or mining. It is used to protect the head from falling objects. It consists of cap shell, cap lining, lower cheek band and back hoop. The cap shell is semi-spherical, firm, smooth and elastic. The impact and puncture kinetic energy of the strike object are mainly borne by the cap shell. There is a certain space between the cap shell and the cap lining, which can buffer and disperse the instantaneous impact force, thus avoiding or reducing the direct damage to the head. Impact absorption performance, puncture resistance, lateral rigidity, electrical insulation and flame retardant are the requirements for the basic technical performance of safety helmet. When the head of the operator is impacted by falling objects, the impact force is decomposed into the whole area of the skull in an instant by using the helmet cap shell and cap lining, and then the elastic deformation of the buffer structure in each part of the helmet is used, plastic deformation and allowable structural damage absorb most of the impact force, reducing the impact force finally acting on the head of the personnel to less than 4900N, thus playing the role of protecting the head of the operators.
       The cap shell material of the helmet plays an important role in the overall resistance performance of the helmet. Safety helmet is a protective product to prevent impact from hurting the head. It consists of cap shell, cap lining, lower cheek band and back hoop. The cap shell is semi-spherical, firm, smooth and elastic. The impact and puncture kinetic energy of the strike object are mainly borne by the cap shell. There is a certain space between the cap shell and the cap lining, which can buffer and disperse the instantaneous impact force, thus avoiding or reducing the direct damage to the head. Impact absorption performance, puncture resistance, lateral rigidity, electrical insulation and flame retardant are the requirements for the basic technical performance of safety helmet. FRP safety helmet is mainly used in metallurgical high-temperature service places, oil field drilling forest cutting, power supply lines, high-rise building construction and cold area construction. ABS plastic safety helmet is mainly used for wearing in indoor normal temperature working places with high impact strength such as mining and machinery industry.
       ABS helmet is made of ABS engineering plastics. ABS safety helmet has high impact resistance and puncture resistance. It is suitable for electric power, chemical industry, petroleum, construction, forestry, port, metallurgy and other industries. Good comprehensive performance, high impact strength, chemical stability and good electrical insulation performance. ABS helmet and 372 plexiglass have good welding property, which is made into two-color plastic parts, and can be chrome plated on the surface and painted. ABS helmet has high impact resistance, high heat resistance, flame retardant, enhanced, transparent and other levels. Liquidity is a little worse than HIPS, better than PMMA, PC, etc,