materials or mixture

Discussion in 'Automotive Electronics' started by aanaqzzz, May 31, 2018.

  1. aanaqzzz

    Thread Starter New Member

    Oct 11, 2017
    11
    0
    Hi to all,

    is there's some one who knows what kind of materials use for the case mold this evaporator fan,
    its kind of ceramic?
     
    • bldc.png
      bldc.png
      File size:
      278.9 KB
      Views:
      22
  2. danadak

    Well-Known Member

    Mar 10, 2018
    1,908
    395
    Variant of ABS Plastic, I see a polished look to finish in a couple of
    places. Or Nylon.....

    Regard, Dana.
     
  3. jpanhalt

    Expert

    Jan 18, 2008
    6,460
    1,253
    Have you tried a file test to see how hard it is? Take a relatively fine file for metal and see if it removes any material. If it grabs then material is below about 40 to 45 Rockwell C (HRC). I suspect many ceramics are harder than that or simply chip, not file. Reinforced plastics will file.
     
  4. ian field

    AAC Fanatic!

    Oct 27, 2012
    6,252
    1,131
    ABS will crumble if you expose it to hydrocarbon solvent, acetone will fog acrylic resin - the solvent resistant stuff is probably at least part nylon.

    Ceramic is easy to spot - it will dull a file very quickly.
     
  5. ebp

    Well-Known Member

    Feb 8, 2018
    2,243
    785
    It is too shiny to be ceramic, unless it is glazed, which seems very unlikely.

    It is likely a common polymer or blend, possibly filled or pigmented. The range of possibilities is very large, both for polymers and fillers. Since the motor is rated at just a little over 3 watts, my first guess would be acrylonitrile butadiene styrene (ABS, a blend or "alloy") which is and extremely common low-cost moderate-performance engineering plastic. It could be a more "exotic" polymer such as polyphenylene sulfide. PPS has a higher allowable service temperature than many common polymers or polymer blends, but that seems an unlikely requirement.

    https://www.samsungparts.com/DA31-00146E-EVAP-FAN-MOTOR.html
     
  6. aanaqzzz

    Thread Starter New Member

    Oct 11, 2017
    11
    0

    Hi,

    Actually when I try to open it, its hard like cement or like hard mixture of cholk or like a tiles inside, its just shine outside, but not a plastic
     
  7. aanaqzzz

    Thread Starter New Member

    Oct 11, 2017
    11
    0

    Hi,
    yes I tried to break two of this ,
    and its hard like a tile or hard mixture of cholk ,
     
Loading...