Production method of glass beads with high refractive index

• Main Authors: HU MINCHAO, JIN JUNSONG, YE HUI, FANG HONGJIE
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: CHEMISTRY; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL

The invention discloses a production method of high-refractive-index glass beads. The production method comprises the following steps: S1, preparing a low-viscosity high-temperature-resistant treatment agent; s2, adding 100 parts of fine powder or fine beads into a vertical high-speed mixer, and adding 7-25 parts of a prepared treating agent in batches to prepare a mixture; s3, feeding the mixture prepared in the step S2 into a low-temperature rotary dryer through a feeding device, and removing moisture to obtain a dried mixture; s4, putting the dried mixture into a rotary granulator, and crushing to obtain powder particles; and S5, putting the powder particles obtained in the step S4 into a spheroidizing furnace to prepare the glass beads. Within the temperature range, the bead forming rate of the glass beads obtained through spheroidizing is high and can reach 98% or above; the crystallization rate is low and does not exceed 4%; when the temperature is lower than 1200 DEG C, the bead forming rate of the sph