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Medicine Borosilicate Glass Tubing 1300-1800mm

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China Cangzhou Four Stars Glass Co., Ltd. certification
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Medicine Borosilicate Glass Tubing 1300-1800mm

Medicine Borosilicate Glass Tubing 1300-1800mm
Medicine Borosilicate Glass Tubing 1300-1800mm

Large Image :  Medicine Borosilicate Glass Tubing 1300-1800mm

Product Details:
Place of Origin: CHINA
Brand Name: FOUR STARS
Certification: ISO15378
Payment & Shipping Terms:
Minimum Order Quantity: 10000
Delivery Time: 10days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 10000

Medicine Borosilicate Glass Tubing 1300-1800mm

Product Name: Medicine Borosilicate5.0 Glass Borosilicate Glass 1300-1800mm Material: Borosilicate5.0 Glass
Application: Medicine Main Ingreadient: Acidic Oxide Raw Materials
Shape: Round Sample: Free
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medicine borosilicate glass tubing


1800mm borosilicate glass tubing


1300mm borosilicate tube

Medicine Borosilicate5.0 Glass Borosilicate Glass 1300-1800mm


raw material


IIncluding main raw materials and auxiliary raw materials. The former refers to raw materials such as oxides, intermediate oxides, and extra-network oxides that are introduced into the glass to form a network structure; the latter can accelerate the melting of the glass, or make it obtain certain necessary properties.


batch preparation


First, the raw materials are pre-processed, including crushing of bulk raw materials, pre-drying of wet raw materials, and iron removal of iron-containing raw materials. The particle size of pulverization is preferably 0.25-0.5mm. Too coarse particles are not easy to be fully melted, and residual powder stones or silicon-rich nodules will be formed in the glass; too fine particles are easy to fly or agglomerate into agglomerates. The raw materials with a certain particle size are precisely weighed according to the formula, and then mixed with a drum, paddle or disc mixer


Glass tube blowing method: used to manufacture hollow glass products, such as water cups, utensils, bottles, jars, light bulbs, etc. For manual blowing, a hollow iron blowing pipe with a length of about 1.5m is used, one end is dipped in glass liquid (picking material), and the other end is a blowing nozzle. After picking the material, roll it evenly on the rolling plate (bowl) and blow air to form a glass frit, which is blown into the product in the mold; it can also be freely blown without a mold, and finally knocked off from the blow pipe. When large-scale products are formed, it is necessary to repeatedly pick and roll evenly to collect enough material. During mechanical blowing, the molten glass flows out from the outlet of the glass melting furnace, and is formed into gobs with a set weight and shape through the feeder, which is cut into the preliminary mold to be blown or pressed into the preliminary shape, and then transferred to the forming mold for blowing. product. The blow-blowing method, which is blown into a preliminary shape and then blown into a finished product, is suitable for making small-mouthed utensils and bottles. The weighing-blowing method of pressing into a primary shape and then blowing it into a finished product is suitable for making large-mouthed utensils and thin-walled bottles and cans


Coefficient of mean linear thermal expansion
α (20℃; 300℃) acc. to ISO 7991
Transformation temperature Tg
515 ℃
Glass temperature at annealing point logη=13
535 ℃
Glass temperature at soft point logη=7.6
783 ℃
Glass temperature at working point logη=4
1020 ℃
Density ρ at 25℃
2.32 g/cm3



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Contact Details
Cangzhou Four Stars Glass Co., Ltd.

Contact Person: Vicky Song

Tel: 86-15832766956

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