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  • Users: kelv
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  1. kelv

    load on end of bolt

    can of worms by the sound of it, maybe this will help? www.boltscience.com just as an interesting point, automotive engineers never use lubricant on bolts. they are used straight out of the box (either zinc plate and passivate or phosphated). Why? ask the other guys - they seem very keen...
  2. kelv

    recycling of plastics - standards and requirements

    I have just started a project for a security camera manufacturer; which involves designing several plastic components (eg. glass filled nylon, abs, acetal, acrylic etc). the question is recycle markings - I don't know if there is any imminent legislation and at what component weight the...
  3. kelv

    corrosion plating for automotive s.g. iron castings

    okay, I have an automotive component (sg iron casting, car suspension part) which requires some kind of anti-corrosion treatment for mass production. typical options are; zinc plate and passivate, black phosphate and paint, chemical blacking, etc. My problem is that I need to treat some of the...
  4. kelv

    Refurbishment of hard chrome plating

    I can only suggest that 'mechanical keying' is the issue here gcb. Basically, chrome (as does any surface coating/treatment) likes a good base and will not tolerate contamination - adding chrome over an old or partly worn chromed surface will risk the new surface flaking off.

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