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  2021-04

  Sealing material requirements

  The sealing material should meet the requirements of the sealing function. Due to the different media to be sealed and the different working conditions of the equipment, the sealin···

• 16

  2021-04

  Vacuum sealing auxiliary materials

  Vacuum sealing auxiliary materials are mainly divided into vacuum sealing wax, vacuum sealing grease, vacuum sealing mud and vacuum sealing paint according to the vacuum sealing po···

• 16

  2021-04

  How to choose vacuum sealing rubber?

  To solve the vacuum rubber seal, in addition to the correct seal structure design, a reasonable selection of the sealing material is the key. Rubber's heat resistance, compress···

• 15

  2021-04

  The requirements of the vacuum system on the physical properties of glass

  Pay attention to the following physical properties when manufacturing and using glass vacuum systems and components. (1) Viscosity. Since glass does not have a fixed melting point,···

• 15

  2021-04

  Kovar

  Kovar is an iron-nickel-cobalt alloy, which is the most commonly used alloy in the glass-to-metal hermetic sealing of vacuum connectors. Its expansion coefficient matches with seve···

• 15

  2021-04

  Other characteristics of vacuum materials

  In the field of vacuum engineering, there are not only requirements for the physical, chemical and mechanical properties of materials, but also requirements for vacuum properties, ···

• 24

  2021-03

  Welding of Kovar alloy

  The welding performance of Kovar alloy is very good, and after welding after nickel plating, good air tightness can still be obtained. Kovar alloy parts should be subjected to stre···

• 23

  2021-03

  Basic conditions for glass sintering and sealing

  Glass is a common industrial raw material. It has many advantages such as high temperature resistance, high density, good electrical insulation, light transmission, corrosion resis···

• 18

  2021-03

  Vacuum plugging material

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• 18

  2021-03

  Cermet

  Cermet is a heterogeneous composite material composed of metal or alloy and ceramic. Metals and ceramics have their own advantages. Generally, metals and their alloys have good sta···

• 18

  2021-03

  Transparent ceramics

  Ordinary ceramics are opaque because they contain impurities and pores. Impurities will absorb visible light, and pores will scatter light waves. If you select high-purity raw mate···

• 18

  2021-03

  Glass-ceramics

  Glass-ceramics ceramics, also known as machinable ceramics, are mica glass-ceramics with synthetic mica as the main crystal phase. It is a ceramic material that can be machined. Th···

• 17

  2021-03

  Material properties of vacuum glass

  From the perspective of vacuum technology, vacuum glass can be roughly divided into three categories: quartz glass, hard glass, and soft glass. The softening temperature of quartz ···

• 17

  2021-03

  Performance of various heating materials for vacuum furnace

  The properties of various heating materials for vacuum furnaces are shown in the following table:materialMaximum use temperature, ℃Melting point, ℃Density，g/cm3Resistivity，μΩ*cmTun···

• 16

  2021-03

  Linear expansion of glass

  Like other solid materials, glass expands when heated. Because the physical properties of glass will change rapidly and continuously in the temperature range of the "softening···

• 16

  2021-03

  Electrical properties of vacuum ceramics

  Since ceramics are mainly used as insulating materials in vacuum technology, their electrical properties have become one of the most important physical properties of ceramic materi···

• 16

  2021-03

  Ceramics in vacuum engineering

  Compared with glass materials, ceramics can withstand strong vibration and the impact surface is not damaged; at high frequency and high temperature, the dielectric loss is small, ···

• 16

  2021-03

  Outgassing rate of mild steel at room temperature

  The common surface treatment methods of low-carbon steel at room temperature include chrome plating, polishing, sandblasting, nickel plating, etc.

• 16

  2021-03

  Outgassing rate of vacuum material

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• 12

  2021-03

  Vacuum connector (vacuum electrode) using glass sintering process

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