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2. Vacuum packing - Wikipedia

   en.wikipedia.org/wiki/Vacuum_packing

   Rotary belt type vacuum packaging machine or vacuum sealer features the same function as the double-chamber vacuum packaging machine as a 'vacuum bag sealer'. But the rotary belt vacuum packaging machine is more convenient, as the belt rotates automatically while the bags are placed to the sealing bar and vacuum sealing process completed.

3. Vacuum chamber - Wikipedia

   en.wikipedia.org/wiki/Vacuum_chamber

   A large vacuum chamber. A small vacuum chamber for studio or lab use in de-airing materials such as mold rubbers and resins. Vacuum chamber for testing leaks in packaging. A vacuum chamber is a rigid enclosure from which air and other gases are removed by a vacuum pump. This results in a low-pressure environment within the chamber, commonly ...

4. Materials for use in vacuum - Wikipedia

   en.wikipedia.org/wiki/Materials_for_use_in_vacuum

   Aluminium bronze is a material that looks and machines similar to brass. It is not susceptible to galling, which makes it suitable for sliding fits against stainless steel. Nickel is widely used in vacuum technology, e.g. as mechanical parts in vacuum tubes. It is relatively low-cost, can be spot welded, can be easily machined, has high melting ...

5. Vacuum casting (elastomers) - Wikipedia

   en.wikipedia.org/wiki/Vacuum_casting_(elastomers)

   The process starts by placing a two piece silicone mold in a vacuum chamber. The raw material is mixed, degassed and then poured into the mold. The vacuum is then released and the mold removed from the chamber. Finally, the casting is cured in an oven and the mold removed to release the completed casting. The silicone mold can be reused. [3]

6. Glass-to-metal seal - Wikipedia

   en.wikipedia.org/wiki/Glass-to-metal_seal

   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 ...

7. These are the best Labor Day vacuum deals from Dyson ... - AOL

   www.aol.com/lifestyle/these-are-the-best-labor...

   This Shark Navigator vacuum holds an impressive 4.4-star rating after more than 105,000 reviews, and during Labor Day, it’s $40 off (only $160). ... The best Labor Day robot vacuum deals.