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Sababu za TIRE za magari kuwa na rangi nyeusi,

Discussion in 'Habari na Hoja mchanganyiko' started by Paul Kijoka, Oct 22, 2012.

  1. Paul Kijoka

    Paul Kijoka JF-Expert Member

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    Ni sababu gani magurudumu ya magari yanatengenezwa kwa rangi nyeusi? Ni kwa sababu ya mambo ya temperature? Je materials labda?
     
  2. dudupori

    dudupori JF-Expert Member

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    Oct 23, 2012
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    Sijui utaalam wowote na utengenezati wa hizi tire pamoja na kutumika rangi nyeusi, ila japo tuvutie picha kama zingetumika rangi kama njano, kijani, nyekundu etc zingeleta mvuto kweli?
     
  3. Safari_ni_Safari

    Safari_ni_Safari JF-Expert Member

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    Oct 23, 2012
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    Lami in Rangi gani kwani?

    Carbon black, for obscure reasons, something that Mr Goodyear discovered by accident, greatly improves wear resistance, and coincidentally, wet traction. It does not make the rubber harder or softer as such, but improves both wear and traction.

    Coloured treads do not contain carbon black or they would be black, because the amount of carbon is substantial (over 25%).
     
  4. m

    mwitu JF-Expert Member

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    hata mimi nataka nijue. fungukeni wadau
     
  5. f

    filonos JF-Expert Member

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    Oct 23, 2012
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    mbona zipo nyekundu za B/CLE pikipiki lakini sababu kubwa ni mazingira ya UCHAFU isichafuke alaka
     
  6. Paul Kijoka

    Paul Kijoka JF-Expert Member

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    Nadhani kwakuwa zinakanyaga zaidi kwenye udongo, hasa kwa huku bongo basi kama ni suala la uchafu basi wangetengeneza brown. Ila kama ni lami bac nakuunga mkono.
     
  7. Safari_ni_Safari

    Safari_ni_Safari JF-Expert Member

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    Oct 23, 2012
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    Why are Tires Black?


    Left alone, tires dry out, discolor and eventually crack and split. "Dry rot" is a multi-million dollar problem for RVers, trailer boaters and owners of classic cars that are parked for extended periods.


    The major factor degrading tires and other synthetic and rubber products is ozone, an odorless gas which is part of the air we breath. When combined with ultraviolet light (the invisible part of sunlight) a reaction occurs that attacks the tire polymer.


    To protect against ozone and UV damage, a stabilizer molecule called a "competitive absorber" is blended with the tire polymer. Competitive absorbers work by capturing and absorbing UV radiation and converting it to heat which is dissipated harmlessly. All tire manufacturers use the same competitive absorber, carbon black. This is why all tires are black...why tires are not available in designer colors.


    These absorbers are sacrificial; they expend themselves in performing their function of changing UV to heat. As carbon black loses it's ability to perform, it turns gray. This is one reason why black tires discolor as they age.


    To protect from further ozone damage, tire manufacturers add a wax compound to their formulas. Tires flex when they are in motion, causing the wax molecules to migrate to the surface. This forms a protective barrier between the air (ozone and oxygen) and the tire polymer. In the tire trade this is called "blooming".


    When tires are parked for extended periods, blooming does not occur and ozone starts attacking the polymer. With UV light and ozone working in concert, the degradation is accelerated, resulting in drying, discoloration and cracking.


    The best product we know of to retard ozone and UV damage is 303 Aerospace Protectant. A quick spray of 303 Protectant leaves tires looking great and protects them with the equivalent of an SPF 40 sunscreen.
     
  8. Preta

    Preta JF-Expert Member

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    hivi kweli eeeh.....mi napenda matairi meupe......
     
  9. Paul Kijoka

    Paul Kijoka JF-Expert Member

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    There is some sort of truth, but wht about some of motor bakes and bicycles' tires with different colors?
     
  10. Jidu

    Jidu JF-Expert Member

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    Na je kwanini Lami ni nyeusi kwani nini isiwekwe kijani njano au nyekundu?
     
  11. Safari_ni_Safari

    Safari_ni_Safari JF-Expert Member

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    Read my post #7
     
  12. Ringo Edmund

    Ringo Edmund JF-Expert Member

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    kuna sababu nyingi ikiwa ni pamoja na joto.
     
  13. manuu

    manuu JF-Expert Member

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    Ungetumia lugha ya kiswahili ungeeleweka zaidi au ndiyoupo kwenye majaribio ya kuandika kiingereza?
     
  14. King Kong III

    King Kong III JF-Expert Member

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    Soma Friction form 2 utapata jibu la swali lako usiniulize swali acha uvivu kasome friction utaelewa
     
  15. U

    Ulimakafu JF-Expert Member

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    Kweli aiseeee..........
     
  16. Goodrich

    Goodrich JF-Expert Member

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