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2. Sandblasting - Wikipedia

   en.wikipedia.org/wiki/Sandblasting

   Moderately abrasive variants include glass bead blasting (with glass beads) and plastic media blasting (PMB) with ground-up plastic stock or walnut shells and corncobs. Some of these substances can cause anaphylactic shock to individuals allergic to the media. [ 3 ]

3. Conservation and restoration of outdoor bronze objects

   en.wikipedia.org/wiki/Conservation_and...

   Using walnut shells as an air abrasive was developed as a gentler form of cleaning than sand-blasting or glass bead peening. Veloz found that a lower pressure of air is needed than the other varieties, though still a large quantity of air is required due to the finding that using a larger nozzle seemed to be more efficient (5/16-inch or 3/8 ...

4. Juglans nigra - Wikipedia

   en.wikipedia.org/wiki/Juglans_nigra

   Walnut shells are often used as an abrasive in sand blasting or other circumstances where a medium hardness grit is required. The hard black walnut shell is also used commercially in abrasive cleaning, a filtering agent in scrubbers in smoke stacks, cleaning jet engines, cosmetics, and oil well drilling and water filtration. [8]

5. Walnut - Wikipedia

   en.wikipedia.org/wiki/Walnut

   The US Army once used ground walnut shells for abrasive blasting to clean aviation parts because of low cost and low abrasive qualities. However, an investigation of a fatal Boeing CH-47 Chinook helicopter crash (11 September 1982, in Mannheim, Germany) revealed that walnut shell grit had clogged an oil port, leading to the accident and the ...

6. Watch this dog crack walnut shells - AOL

   www.aol.com/lifestyle/watch-dog-crack-walnut...

   This clever dog can crack walnut shells! For premium support please call: 800-290-4726 more ways to reach us

7. Foundry - Wikipedia

   en.wikipedia.org/wiki/Foundry

   Numerous materials may be used to clean cast surfaces, including steel, iron, other metal alloys, aluminium oxides, glass beads, walnut shells, baking powder, and many others. The blasting media is selected to develop the color and reflectance of the cast surface. Terms used to describe this process include cleaning, bead blasting, and sand ...