regalvanizing

[jsl]

Past posts seem divided on the usefulness/cheapness of this. Further advice would be welcome, plus addresses of companies in the Solent or west London areas - so that I can save on delivery costs. I have about 40 metres of chain and 35lbs of CQR.

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[hylas]

No problem about the anchor.. but be careful with the chain..

First, check that the diameter of each link is not reduced by more than 10 % (at the place where the two links meet..)

Check also if the galvanising company has a vibrating drum at the end of the zinc bath.. otherwise nearly all chain links will be welded together.. you will have to break them out with an hammer (quite a booring job) and you will destroy the galvanisation at the same time..

It you can (and if needed) burn the painted lenght marks on the chain..

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[philmarks]

I believe that I saw a galvanizing company on one of the ind. estates in Eastleigh, off M27 near Soton. Yellow Pages should help.

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[dave36]

The Eastleigh company is Wessex Galv tel 02380629952
Production manager is called Alex. As said before the anchor is no problem but the chain will need special handling. The Eastleigh works is part of the Wedge group so one of their plants should be able to handle chain - prices start at around 40p per kilo (trade) expect a 50% surcharge for regalv, due to acid process.
Dave

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[chippie]

Make sure the lead in the tip is replaced as it will melt out during the galvanising process.

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[Talbot]

I had my tabernacle re-galvanised. It had to be shot blasted beforehand as I had some strengthening bits welded on, and then wanted a lot of money as a minimum charge. I arranged the shotblasting seperately. I then arranged for the tabernacle to be included with items from a trailer maker. Thus only paid for the actual work rather than the minimum charge. Considered it for the anchor, but the cost is not a lot less than a straight replacement. No bothering with the chain

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[AndrewB]

Previous thread on topic.

I'm sure JSL has seen it, but for anyone else interested in this, there were some useful observations in the thread back in February: see <A target="_blank" HREF=http://www.ybw.com/cgi-bin/forums/showthreaded.pl?Cat=&Board=pbo&Number=317836>HERE</A>.

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[charles_reed]

I can't help you with galvanisers in W London, bu I can give you a few pointers in the West Midlands.

However:-
#1. - most galvanisers have a minimum charge/weight. this varies between 25 and 100 kg. Yours will probably be below any minmum. You need to find an engineer who regularly users a galvaniser and add your little bit onto theirs.
#2. - you need to get the items shot-blasted (easy to find contractors but expensive) or pickled (far more difficult). For the latter find a cold-reducing steel mill and ask them to dip your gubbins in their pickling (H2SO4) tank just before re-filling.
#3. For chain you can't go to any old galvaniser, they've got to have rotary tank or some other means of agitating the chain in the tank.

For my part, though I worked in the motor-industry supply chain and knew all the people who did these things, the only thing I found worth re-galvanising was the CQR anchor. Unfortunately I put it in with a drop-forger's galvanising and subsequently the shank shattered due to it being a casting and the galvanising temperature hardened it.

My last lot of certificated, calibrated, high-yield 8mm chain came to £129 for 50m.

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[hylas]

sory Chippie but if it is a genuine CQR, there is NO lead in the tip..

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[chippie]

Well , that exposes my anchor as bogus then!

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[charles_reed]

There are a hell of a lot of imitation CQRs.
The additional weight in the tip, is steel not lead and the plough body is longer and slimmer than the imitations. It also has a forged shank, whereas the "better" imitations have a cast shank. There is one, made by Sowester which even boasts of being "made in Scotland" as does the CQR.

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[chippie]

There is also the Manson brand made in NZ which has a good reputation. My one with the lead in the tip is unbranded which I bought secondhand and had regalvanised. I havent actually deployed it as it is a backup and a bit heavy for regular use.

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[Mirelle]

That\'s odd, Charles....

The shank of a genuine Simpson Lawrence CQR is a drop forging!

My kedge is a 35lb CQR (used to be the bower) and it is so old that it says "Patent applied for" rather than "Patent no..." on the shank. It must have been in and out of the galvanising bath three or four times by now.

Suspect yours may not have been a "genuine" CQR?

Getting back to the subject, I have have the chain done, and usually a few links come back frozen together; this is one of the few times in boating when you can do what you really want to do and belt the living daylights out of something with a big hammer!

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