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Storage of TVS outside..Good or Bad...or Dangerous??? - Page 2

| TV and Monitor Recycling
  1. #21
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    lead, phosphorus, barium, mercury, beryllium, cadmium, etc.



    missouri just fined an outfit for improper disposal and gave the owner jail time for it. wisconsin dnr can fine you, charge you and confiscate everything.

    if you do a little research, you can find places that will take them for free as long as you give them the recycling credits. dell is doing a lot of that right now.


  2. #22
    LadyScrappers's Avatar
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    Used to take copper out of tvs and computer monitors until I discovered how much of an environmental hazard they are. Now I charge $5 per tv (less than the transfer station), then take them to Goodwill where they have a free recycle program.

  3. #23
    eesakiwi's Avatar
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    Quote Originally Posted by IdahoScrapper View Post
    I have busted them at the yokes. Why would busting them at the band make them explode? What am I missing?
    Its a weak link. Theres different glass in the front of the screen & the rear of the screen.
    Because the glass is welded together when its hot, as its cooled down theres been different rates of contraction of the glass.
    When its normal cold, theres a stressed band around the screen at the join.
    Now, since the tubes under vacuum all that needs to happen is for something to break the tube at the join.

    That causes it to break 360 degrees around the tube & then the vacuum takes over & tries to suck the fount of the screen inwards.
    Then you now have pressure in two different directions, in & out, as the screen explodes/implodes it shoots out the finger sized shards of razor sharp glass, at high speed, for about 6+ feet.
    Along with the shockwave it causes too.

  4. #24
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    Quote Originally Posted by TheHoss View Post
    eesakiwi i appreciate how safety oriented you are, but dang. I've recycled thousands of tv's. I NEVER suit up in battle armor to tear one down. Simple common sense is all you need.

    I've smashed my fair share of tubes in the past, when i didnt have any other way of recycling the tubes (not proud of what i did, but it is what it is). It's NOT as dangerous as you make it sound. And they do NOT "explode". They implode. You dont have to worry about shrapnel or what have you.

    Sorry, readin' yer posts just made me chuckle a bit, had to say somethin'.
    I have been told by TV techs about the apron & face mask etc. Its all 'Health & safety' workshop practices.

    I have seen the tubes explode, I nearly sh@t myself the first time it happened.
    Since then I have seen a few more explode & know why it happens.

    If anyone doesn't be-leave me, try it out. Just remember the safety hazards as I have said & please get a video of it happening.
    I'd suggest the TV sitting like normal on the ground, but with the top 3/4'rs - 7/8ths of the case taken off.
    And just tap it solidly at the 1/2way mark up the metal band.

    The bands probably also compressing the screen.

    I stand by (sic) what I have said before, those CRT tubes, when still under vacuum, are deadly dangerous.
    ---------
    Have you ever seen safety glass break up, its under vacuum & it still explodes, same effect but with a greater 'volume' of void inside the tube.

    All the safety glass needs is a weak point to break up, thats why ceramic will break the safety glass, it makes a weak point & the vacuum pressure causes the weak point to travel all over the piece of glass, breaking it up into pieces.
    Last edited by eesakiwi; 12-27-2011 at 09:11 PM.

  5. #25
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    Quote Originally Posted by IdahoScrapper View Post
    I have busted them at the yokes. Why would busting them at the band make them explode? What am I missing?
    Busting then at the yokes will cause the glass to break there & the gas gets let in quickly. That kills the vacuum effect.
    I'm hoping you mean at the rear of the coils etc, though I do see a lot busted just under the yoke.

  6. #26
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    I tap what I call the yoke assembly (rear most part that is a copper/ferrite cone) with a hammer to break the seal and let off the vacuum. Then I toss the yoke into the pile that gets further broken down at a later time.

    Should I be doing it a different way?

  7. #27
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    Yeah Idaho, ya know that little "suction cup"? Take a pair of needle nose pliers, take the cup off. Then take an "all" or a screw driver, put it in the hole, use a hammer and pierce the thin metal layer. It'll "air" the tube. That's what i do, all day long.

  8. #28
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    Quote Originally Posted by Filthy View Post
    WTH was that white ''light'' type flash? jeebus

  9. #29
    Mechanic688's Avatar
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    WTH was that white ''light'' type flash? jeebus
    That was the phosphor.
    Phosphorescent materials are known for their use in radar screens and glow-in-the-dark toys, whereas fluorescent materials are common in CRT and plasma video display screens, sensors, and white LEDs.
    Phosphors are often transition metal compounds or rare earth compounds of various types.
    Compliments of Wiki;
    P & M Recycling - Specializing in E-Waste Recycling.
    If you enjoy your freedom, thank a vet.

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  11. #30
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    There is more total vaccuum the larger the surface area. Also the crt is normaly under vaccuum so upon breakage of the larger surface area, shrapnel is first drawn inward, then it bounces violently off the inside and back out until all of the energy of the implosion is spent. I have released the vacuum before by cracking the little tip at the yoke. Now I am concered about polution. If the yoke end was later sealed with silicone; would that be a better practice?
    Last edited by Resourceful; 01-03-2012 at 05:05 PM.


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