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History of development of vacuum glass

fanyumaoyi 2017-04-20 17:24:52
  In 1893, British physicist and chemist zhanmushi·Duwa invented the thermos. For Jamie

  Miss him, also known as the Dewar flask. Since then, longer than the scientists had a dream fantasy, what

  Waiting list for thermos bottle technology can be applied to the Windows of the building? To make the leap from Dewar to vacuum plate glass,

  Three problems in front of people: ⑴ differ from Dewar, vacuumFlat glassIs a small volume, large surface area

  Flat glass vacuum chamber and narrow but fast vacuum to reduce the residual gas to heat conduction

  Negligible levels, and keep the vacuum; b different from Dewar cylinder easily under pressure, Tablet

  Empty glass only use support to withstand the pressure of 10,000 kilograms\/square meter, the support makes vacuum glass

  Glass products meet the standards required of architectural glass design strength and mechanical life, this support must be physical

  Chemical properties and geometry, geometric distribution design. C is more difficult than the Dewar, vacuum glass

  Are transparent materials for Windows and doors, at the bleeding point on, support, design and material selection, it should not affect transparency and appearance.

  1913 the first flat vacuum patent publications. Scientists have carried out a lot of exploration,

  Birth of a number of patents. In the 1980 of the 20th century, the world\'s research and development of vacuum glass gradually become active again, its

  There are two groups worthy of mention. One American g • k • Colorado Institute of solar energy by d Benson

  Vacuum glass research group led by Professor, after 1985-1991 years of experimentation, the creation of a lot

  Technical theories, ideas and lets the people learn from laboratory data. Another is the Department of applied physics, University of Sydney r • E •

  Research group led by Professor Collins 1989-1994, further improvement of the process, 1989

  Year trial sample in 1993, developed the first practical vacuum glass blocks 1 m x X1 m, and has applied for 4

  Patents. Original Tang Jian, a Professor of physics at Peking University was one of the participants. Humans after the invention of the Dewar full

  For 100 years, and finally invented a vacuum plate glass. Britain, Greece and Japan, scientists have done a lot of

  Similar studies.

  Professor Tang Jianzheng for the pioneering and development of vacuum glass and serve the country through science and education, science and education

  Read return to their homeland, continuing research and development, established in 1998 vacuum glass Research Institute in Beijing, Qingdao xinliji vacuum

  Glass technology co, and applied for patents in China.

  Building door and window glass was originally just a simple weather stripping, perspective, single or double ventilation ordinary flat glass.

  Ordinary flat glass is the first generation of window glass. Modern science and technology on glass doors and Windows but also a heat insulation, noise reduction

  And block external sight seems to be in conflict with many new features and new requirements. Now have produced rolling glass, clip

  (Steel) wire glass, coated glass, heat-reflective glass, laminated glass, insulating glass (filled or not filled argon), low

  New varieties such as radiation coating insulating glass processing glass. Insulating glass can be said to be the second generation of window glass. Vacuum glass

  Hollow glass-what\'s the difference? Vacuum flasks are familiar to people, if you accidentally to vacuum the bottom of the \"tail\"

  Break, it lost its insulation features. Vacuum glass is such a completely different products with insulating glass structure.

  Insulating glass with aluminium frame around the edge, an interval of 2 pieces of glass, containing air or argon, total thickness of the thinnest 12

  Millimetre. Vacuum glass pillar with the appropriate distribution of particle to do interval, clearance of only 0. 1~0. 2 mm,

  No gas chamber vacuum, vacuum up to 0. More than 1 bar, only about 6 mm total thickness is thinnest. Heat exchange

  Flow comes in 3 forms, glass vacuum residual gas had little convection and conduction heat transfer in space; between pillars of conduction heat transfer;

  Edge conduction heat transfer. Vacuum glass edge conduction heat transfer and heat transfer is radiant heat transfer. Coated with a transparent low-e

  Glass vacuum glass, and like a Dewar silver greatly reduces the radiant heat transfer. It is obvious that a vacuum glass

  Glass energy-saving window is the third generation of window glass.