Molded cosmetics bottles open mold production

Molded cosmetics bottles must first bottle type design, according to the design of the bottle drawing, making molds, general 14 - to do a set of mould As the standby 16 groups, of which the two groups. Each set of mold can be produced at the same time a dozen cosmetics bottles, molded cosmetics bottles have both brown and transparent color, color different bottle type of cosmetic packaging bottle also want to open mold, can appear otherwise dyeing, molded glass 7 advantage is: hard pressure, chemical inertness and good stability, blocking performance is good, high internal pressure strength, abundant raw materials, the price is low, recyclable, is the food industry, chemical industry, cultural and educational supplies, medicine and health care industries such as commonly used packaging materials. 1. Glass forming oxide raw materials ( 1) General introduction of SIO2 materials commonly used silica sand ( Also known as the quartz sand) , sandstone, quartzite, etc. The chemical composition of silica sand is SIO2, also contains a small amount of AL2O3, K2O, Na2O, CaO, etc. Function: granular silica sand is a natural raw material, particle size of glass and glass melting process has great influence on the product quality. Particle is too large, difficult to melt, often produce the defects such as stones, stripes in the glass. Although particles is too small, can speed up the melting, but easy to produce splash, agglomerate, easy to hazardous substances. Regulation: granularity in 0. 15 - 0. 8毫米。 ( 2) The introduction of B2O3 raw material for: boric acid and borax ( Na2B4O7。 10H2O) 。 In borate glass, B2O3 to ( BO4） Structure as a unit, and silicon oxygen tetrahedron constitute network structure, therefore, is the glass formation of oxides.