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Welding Parts Suppliers And Welding Specifications

  • otsed talex
    May 27, 2019
    Bakelite is an early plastic or resin made from synthetic
    materials. It was developed in the early 1900's and used to make items such as
    jewelry, billiard balls, toys and game pieces, radios, flatware sets, and many
    other products produced from the early to Mid 20th century. In photographic
    equipment, the most common items produced in Bakelite were cameras, light
    meters, lens caps and cases, developing tanks, and projectors.
    Coronet camera
    made of Bakelite

    The manufacturing process was labor intensive and the material was
    formed from an elimination reaction of phenol with formaldehyde, usually with a
    wood flour filler. It is still being produced occasionally for industrial uses,
    but no longer for consumer merchandise due to the labor and cost involved This
    makes Bakelite fall into the "retro" or "vintage" material category, and is
    often classified as a rare and more valuable plastic than modern plastics.
    Because there are so many different types of plastic, and some are very similar
    to Bakelite, it is often questionable as to whether an item was truly made of
    Bakelite or not. When it comes to vintage cameras, being made of Bakelite
    typically isn't a huge concern as it is with vintage jewelry, but the retro
    aspect still appeals Some cameras were only made out of Bakelite, and in these
    cases, there are also a few manual tests you can perform to determine if the
    plastic is indeed Bakelite.
    Lens cap made of Bakelite
    Appearance and sound
    tests: Bakelite is a heavy, denser material than most plastics. It typically
    feels thicker and has a smooth finish. The finishing methods used to produce
    Bakelite removed any seams in the material so true Bakelite shouldn't have edges
    that visibly come The sound of two pieces of Bakelite clanking together typical
    produces a lower-pitched. The sound of two pieces of Bakelite clanking together
    typically produces a lower-pitched "clunky" sound. The sound is a little more
    subjective though, and shouldn't be sole relied upon as a testing method.