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Joining technology for metal pipes and glass tubes

It is possible to directly bond borosilicate glass with stainless steel or copper.

It is possible to directly bond borosilicate glass with stainless steel or copper. The technology for bonding glass and metal is an advanced technique that combines materials with different coefficients of thermal expansion, and only a limited number of companies in the world can achieve this.

Related Link - https://www.hagitec.co.jp/yy/ns/2025.03.06-yy.html

basic information

- Glass: Equivalent to PYREX - Metal: SUS316/Oxygen-free copper (C1020) - Pressure resistance: 0.1MPa (internal vacuum, external atmospheric pressure) - Allowable heating temperature: 400℃ - Temperature change: Below 25℃/min - Leak rate: Below 7×10^-11Pa·m^3/s

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Applications/Examples of results

Vacuum piping of vacuum systems Sample containers for analytical instruments Medical devices, special lamps, etc.

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