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Uranium glass used as lead-in seals in a vacuum capacitor. Glass-to-metal seals are a type of mechanical seal which joins glass and metal surfaces. They are very important elements in the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass-encapsulated semiconductor diodes, reed switches, glass windows in metal cases, and metal or ceramic packages of ...
A semi-automatic box sealing machine A large roll of box-sealing tape in the tape head of a case-sealing machine. A case sealer or box sealer is a piece of equipment used for closing or sealing corrugated boxes. It is most commonly used for regular slotted containers (RSC) and can involve adhesive (cold water-borne or hot melt adhesive), box ...
Induction sealing is the process of bonding thermoplastic materials by induction heating. This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents. Induction sealing is used in many types of manufacturing.
The C8 has a 368 mm (14.5 in) A1 profile barrel like the Colt Model 653 M16A1 carbine, but with a 1 in 178 mm (7 in) rifling twist appropriate for adequately stabilizing the 5.56×45mm NATO C77 cartridge L109 ball and the C78 cartridge longer L110 tracer projectiles and the design improvements featured on C7 assault rifles. The C8 has a cyclic ...
Sliding blister sealing machine packaging machinery is much faster than manual packaging. One good example of this is the candy packing machine. Here, hundreds to thousands of candies can be wrapped in minutes.
A hermetic seal is any type of sealing that makes a given object airtight (preventing the passage of air, oxygen, or other gases). The term originally applied to airtight glass containers but, as technology advanced, it applied to a larger category of materials, including metals, rubber, and plastics. Hermetic seals are essential to the correct ...
For instance, rather than simply placing single sheets in a climate controlled chamber, the Library of Congress recommends sealing samples in an air-tight glass tube and aging the papers in stacks, which more closely resembles the way in which they are likely to age under normal circumstances, rather than in single sheets.
The Civil Defense CD V-717 with detachable ionization chamber deployed. Ionization chamber portion sits atop yellow anti-contamination bag. Similar to the CD V-715, this unit reads from 0.1R/h to 500R/h. It is also a survey meter with an ionization chamber, however this unit's chamber is detachable for hanging outside your shelter or basement.
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