PPE

ABS meaning of ABS safety helmet

ABS safety helmet is made of ABS engineering plastics. ABS safety helmet has high impact resistance and puncture resistance. 1t is suitable for electric power, chemical industry, petroleum, construction, forestry, port, metallurgy and other industries

ABS resin is the most widely used polymer with the largest output at present. 1t organically integrates various properties of PS, San and BS, and has excellent mechanical properties of toughness, hardness and rigid phase balance. ABS is a terpolymer of acrylonitrile, butadiene and styrene. A represents acrylonitrile, B represents butadiene and s represents styrene

ABS engineering plastics are generally opaque, with light tooth color, non-toxic, tasteless appearance, toughness, hardness and rigidity. They burn slowly, with yellow flame and black smoke. After burning, the plastics soften and scorch, giving off a special smell of cinnamon, but without melting and dripping

ABS engineering plastics have excellent comprehensive properties, such as excellent impact strength, good dimensional stability, electrical properties, wear resistance, chemical resistance, dyeing property, good molding and mechanical processing. ABS resin is resistant to water, inorganic salt, alkali and acid, insoluble in most alcohols and hydrocarbon solvents, but easily soluble in aldehydes, ketones, esters and some chlorinated hydrocarbons

1. The amorphous material, with medium fluidity and high moisture absorption, must be fully dried. The plastic parts with glossy surface must be preheated and dried for a long time at 80-90 ℃ for 3 hours2. High material temperature and high mold temperature are suitable, but it is easy to decompose when the material temperature is too high (decomposition temperature is For high precision plastic parts, the mold temperature should be 50-60 degrees, for high gloss, heat-resistant plastic parts, the mold temperature should be 60-80 degrees

3. 1n order to solve the water inclusion, it is necessary to improve the fluidity of the material, adopt high material temperature, high mold temperature, or change the water level

4. 1f heat-resistant or flame-retardant materials are formed, plastic decomposition products will remain on the surface of the mold after 3-7 days of production, which will cause the surface of the mold to be shiny. 1t is necessary to clean the mold in time and increase the exhaust position on the surface of the mold

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