High Heat Resistance Boro Glass Rods Type 1 Coe 5.0 1.2mm Thick Long

High Heat Resistance Type 1 Coe 5.0 1.2mm Thick Long Tube Glass Tube Borosilicate Glass Tube​

raw material

Including main raw materials and auxiliary raw materials. The former refers to the introduction of raw materials such as the oxides that form the network structure of the glass, the intermediate oxides and the oxides outside the network; the latter can accelerate the melting of the glass or make it 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 exceeding 100°C, and its electrical resistance exceeds that of many metals and other materials. Borosilicate glass has a longer service life at temperatures exceeding 100°C, and its electrical resistance exceeds that of many metals and other materials. However, borosilicate glasses also have their limitations. They are not resistant to hydrofluoric acid, concentrated phosphoric acid, and strong bases, especially at high temperatures (>100°C). "Glass corrosion occurs, the glass surface wear.

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

Batch preparation

First, the pretreatment of raw materials includes crushing of bulk materials, drying of pre-wetted materials, and treatment of iron-containing materials other than iron. The particle size after crushing should be 0.25 to 0.5 mm. Particles that are too coarse are not easily melted sufficiently, and the remaining powder will form stones or silicon-rich nodules in the glass; particles that are too fine are prone to disperse or agglomerate. The raw materials are accurately weighed in particle size according to a certain formula, and then mixed with a drum, stirring paddle or disc.
MeltingGlass is batch melted and refined at high temperatures to form a homogeneous, bubble-free, rock-free molten glass. The melting temperature of the glass batch varies with composition and is typically 1300-1600°C. The batch undergoes a series of physicochemical reactions that gradually and completely melt at high temperatures. With the increase of temperature, the viscosity decreased obviously, a large amount of gas and raw air escaped, the melt contained in it decomposed and the melt was clarified. The bubbles are removed at high temperature, and the chemical composition of the molten glass tends to be uniform. If necessary, mechanical stirring can be applied. After the clarification and uniform cooling are completed, the glass uniformly reaches the desired viscosity suitable for molding.

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