Strength is improved by performing reinforcement treatment (air cooling reinforcement)!
Soda glass is heated to a certain temperature (which varies depending on the raw materials) and then rapidly cooled by blowing compressed air onto it, creating a compressive layer on the glass surface. This results in a glass that is approximately 2 to 3 times stronger than in its normal state (air-cooled strengthening). In this case, strength refers to bending strength, which is improved regarding the pressure applied to the pressure vessel when installed. The main raw materials used for strengthening treatment are soda glass and low-expansion borosilicate glass (such as Pyrex and Tempax). Please select according to your intended use (pressure-resistant specifications or heat-resistant specifications). 【Features of Soda Glass】 ■ Maximum operating temperature: 80℃ ■ Minimum bending strength: 150N/mm² ■ Average linear expansion coefficient: 98×10^-7/℃ or less *For more details, please refer to the PDF document or feel free to contact us.
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【Application】 ■Sight glass for boilers and pressure vessels *For more details, please refer to the PDF document or feel free to contact us.
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We specialize in the manufacturing and sales of specialty glass, including custom glass processing tailored to your desired shapes and conditions, various glass tubes, and standard glass for water level gauges. We produce glass for a wide range of applications, including industrial, commercial, and research uses. Our in-house processing allows us to flexibly accommodate small lots and short delivery times. Even for shapes and conditions that are difficult for a single company to process, we can achieve them through our long-established network of partner companies.