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Rivetting into carbon

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mike ellis View Drop Down
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Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Topic: Rivetting into carbon
    Posted: 03 Dec 07 at 10:55am
right i've finnally finnished varnishing my mast and ive got a new cleat but i still haven't been able to get hold of any rivets for carbon fibre, even google hasnt been any use. can someone point me in the right direction please?

Edited by mike ellis
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Merlinboy View Drop Down
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Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 07 at 8:23am
Originally posted by English Dave

Originally posted by Merlinboy

It only reacts in salt water doesnt it??? i thought that the salt water, carbon and alloy created a kind of battery, as for rivet gun get some lazy tongs!

Salt water does make things worse as the salt in the water acts as an electrolyte and that helps the galvanic corrosion. Pure water is a relatively poor conductor although throwing a toaster in the bath is still a bad idea. Use dichromate paste in any case - it saves having to replace every rivet if you move to the seaside. Also, with Tewksbury's sewage treatment plant getting flooded the other week ( I used to row at Lower Lode, below the weir as a nipper so I know the area) I'm sure there were lots of electrolyes around .

Forget lazy tongues, get an air gun!

 

Dave the whole town stank (worse then normal) real mess i had a tide mark of sh*t stuck arround the bottom of my boat that i couldnt shift for hours of scrubbing!  I havnt swam in the water since the floods dont really intend to either

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mike ellis View Drop Down
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Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 07 at 9:03pm
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Post Options Post Options   Quote timnoyce Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 07 at 8:40pm
The actual act of rivetting into carbon is the same as riveting into aluminium... it's just more critical exactly how you do it.

I agree with Rick that you should try and get hold of some of the carbon rivets as they don't squash the fibres like a normal rivet and so you won't cause a structural problem in the mast. If you ring me at work tomorrow I can probably get you a couple in the post if we have any in stock.
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Post Options Post Options   Quote Villan Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 07 at 7:03pm
Surley it should be exactly the same?

Drill out old rivet
Slop on some of the anti-corrosion gloop
Put Rivet into Rivetgun
Insert into existing hole in mast, ensuring gloop spreads over it
Pull handle a few times, until a loud *BANG* is heard

Done!

Now turn around, and try it on your own boat!

Good Luck!!

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mike ellis View Drop Down
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Post Options Post Options   Quote mike ellis Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 07 at 6:15pm
why's it so hard to rivet into carbon fibre? whats different from alluminium?
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Post Options Post Options   Quote English Dave Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 11:31pm

Originally posted by Merlinboy

It only reacts in salt water doesnt it??? i thought that the salt water, carbon and alloy created a kind of battery, as for rivet gun get some lazy tongs!

Salt water does make things worse as the salt in the water acts as an electrolyte and that helps the galvanic corrosion. Pure water is a relatively poor conductor although throwing a toaster in the bath is still a bad idea. Use dichromate paste in any case - it saves having to replace every rivet if you move to the seaside. Also, with Tewksbury's sewage treatment plant getting flooded the other week ( I used to row at Lower Lode, below the weir as a nipper so I know the area) I'm sure there were lots of electrolyes around .

Forget lazy tongues, get an air gun!

English Dave
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(You'd think I'd be better at it by now)

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Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 6:52pm
It only reacts in salt water doesnt it??? i thought that the salt water, carbon and alloy created a kind of battery, as for rivet gun get some lazy tongs!
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Post Options Post Options   Quote Smight at BBSC Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 6:22pm
Some old 600 sailor at bbsc left the old cleat and just riveted a new one underneath  It's already started to rust
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Post Options Post Options   Quote Black no sugar Quote  Post ReplyReply Direct Link To This Post Posted: 02 Oct 07 at 3:15pm
And a tough rivet gun! You'll need more muscle power for that than driving a rivet into aluminium.
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