Celvaseal 真空密封胶

891-62Celvaseal 真空密封胶

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2021-01-28 11:33:03
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属性:
供货周期:一个月;应用领域:医疗卫生,环保,化工,生物产业,石油;
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产品属性
供货周期
一个月
应用领域
医疗卫生,环保,化工,生物产业,石油
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桑戈国际贸易(上海)有限公司

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产品简介

Celvaseal™ Vacuum Leak Sealant真空密封胶
型号:891-62
Celvaseal™ leak sealant is a compound specially engineered for sealing leaks in high vacuum systems.

详细介绍

Celvaseal™ Vacuum Leak Sealant真空密封胶

Celvaseal™ leak sealant is a compound specially engineered for sealing leaks in high vacuum systems. It can repair leaks as large as 2 micro liters/second, even with the system under vacuum. Larger leaks can be repaired when the vacuum system is at atmosphere.

It is available in two forms: Spray (ozone safe) and fluid in a brush-on bottle. It has a low vapor pressure which make is suitable for use in ultra high vacuum systems and withstands repeated temperature cycling from -200°C to 400°C. (-328°F to 752°F) Steady weight loss of 1.6 x 10 -8 gr/cm2/hr, which is lower than most epoxy based systems. Can be used at temperatures up to 300°C (572°F) continuously, and up to 400°C (752°F) for short periods. It has good adhesion to cryogenic temperatures and excellent electrical resistivity. Can be stored longer than 1 yr at 25°C (77°F). Density is 1.14 gr/cm 3 and viscosity is 250-1000 cPs.

Celvaseal™真空密封胶
Celvaseal™密封胶是专门设计用于密封高真空系统泄漏的化合物。 即使系统处于真空状态,它也可以修复2微升/秒的泄漏。 当真空系统处于大气压时,可以修复较大的泄漏。

它有两种形式:喷雾(臭氧安全)和刷子瓶中的液体。 它具有低蒸气压,适用于超高真空系统,可承受-200°C至400°C的反复温度循环。 (-328°F至752°F)稳定的重量损失为1.6 x 10 -8 gr / cm2 / hr,低于大多数环氧基系统。 可在连续高达300°C(572°F)的温度下使用,短时间内可在高达400°C(752°F)的温度下使用。 它对低温温度具有良好的附着力和优异的电阻率。 可在25°C(77°F)下储存超过1年。 密度为1.14gr / cm 3,粘度为250-1000cPs。

Typical applications for Celvaseal include:
  • Glass to metal seals, such as sensor pin feedthroughs
  • Glass-Kovar joints
  • UHV systems with small leaks on metal gaskets or high penetration welds
  • Small leaks in glass vacuum systems
  • Temporary repairs of small cracks in exposed gaskets
  • Sealing hairline cracks in welds and brazed joints
  • Thread sealant of fine pipe threads for mounting sensors and components to vacuum systems

Average curing temperature time:

  • 400°C (752°F) 20-30 minutes
  • 250°C (482°F) 60-70 minutes
  • 230°C (446°F) 75-90 minutes
  • Room temperature - Days

Celvaseal™的典型应用包括:
•玻璃 - 金属密封,例如传感器引脚穿通
•玻璃 - 可伐合金接头
•特高压系统在金属垫圈或高穿透焊缝上有小泄漏
•玻璃真空系统中的小泄漏
•临时修复暴露垫片中的小裂缝
•密封焊缝和铜焊接头的发丝裂缝
•细管螺纹密封剂,用于将传感器和组件安装到真空系统
平均固化温度时间:

•400°C(752°F)20-30分钟
•250°C(482°F)60-70分钟
•230°C(446°F)75-90分钟
•室温 - 天数

Prod #

Description

Unit

891-62

Celvaseal™ Aerosol Spray Can, 6 oz

each

891-63

Celvaseal™ Brush-on bottle, 2 oz

each

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