Medicine Pyrex Borosilicate Glass Tube Acidic Oxide Raw Materials

Factory Supplies Borosilicate Pyrex Tubes Acidic Oxide Raw Materials

raw material

Including main raw materials and auxiliary raw materials. The former refers to the introduction of raw materials such as oxide, intermediate oxide and outer oxide of the glass network structure. The latter can accelerate the melting of glass or enable it to obtain certain necessary properties.

main ingreadient

Outstanding thermal shock and chemical stability
Drawn tube and bar products are manufactured using the latest technology to produce pristine surfaces that are smooth, non-porous, fully transparent and corrosion-resistant.
Borosilicate glass tubes, rods, profiles and capillaries are used in the production of laboratory glassware, glass fiber optic ferrules, NMR tubes, IVF pipettes, gas chromatographs, industrial instruments, process piping, solar thermal collectors and lamps.

ACI not only offers replacement glass cylinders and their own tubes -- mirrors and level gauges, but also glass tubes, glass cylinders and parts of DURAN® borosilicate glass 3.3 as well as SIMAX® glass tubes.

Borosilicate glass has a longer service life at temperatures over 100°C and its resistance exceeds that of many metals and other materials. Borosilicate glass has a longer service life at temperatures over 100 ° C and its resistance exceeds that of many metals and other materials. However, borosilicate glass has its limitations. They are not resistant to hydrofluoric acid, concentrated phosphate, and strong base, especially at high temperatures (> 100°C). The glass corrodes, causing the surface of the glass to wear away.

It mainly includes the steps of batch preparation, melting, forming, annealing and post-processing.

Batch preparation

Firstly, the pretreatment of raw materials includes the crushing of bulk materials, the drying of prewet materials, and the treatment of iron-containing materials other than iron. The particle size after crushing is 0.25 ~ 0.5 mm. Too coarse particles are not easy to melt, and are fully formed in the residual powder or silica-rich nodules on the glass stone; Particles that are too fine tend to disperse or aggregate. Accurately weighing raw materials according to the granularity according to certain formula, and then mixed with drum, blade or disk.

Molten glass is a uniform, bubble-free, rock-free molten glass refined by batch melting at high temperature. The melting temperature of glass ingredients varies depending on the composition, usually between 1300 and 1600℃. The batch process undergoes a series of physicochemical reactions and gradually melts completely at high temperatures. With the increase of temperature, the viscosity decreases significantly, and a large amount of gas and original air escape, in which the melt decomposes and clarifies. After high temperature down in addition to the bubble, the chemical composition of molten glass tend to be more uniform. Use mechanical stirring if necessary. After clarification and uniform cooling, the glass uniformly reaches the desired viscosity suitable for molding.

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