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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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galvanizing old car frame
this car frame need some sections re-constructed due to rust, and enough
other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car |
#2
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galvanizing old car frame
You might look into phosphoric acid for the cleaner. It does remarkably
good work. A bit costly if the frame is immersed in a tank, though. Maybe a shower? Hul unk wrote: this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car |
#3
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galvanizing old car frame
On 23/08/18 12:25, unk wrote:
this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car Depending on the galvanising plant capability it doesn't need to be de-rusted just degreased and paint removed. I have a couple of galvanising plants in the region and the better one acid dips the part which removes rust and mill scale, then dips in flux, salammoniac IIRC, then the zinc bath. Extra galvanising can be applied by a heavy sand blast prior to dipping. If the car frame is closed it may require drilling to prevent pressure build-up due to the zinc bathÂ* heat and allow the frame to drain, if an open C channel then likely no venting/drain required. A mate had a Marcos chassis galvanised and it went well but the guy that organised the job had taken someÂ* years to get the venting and dipping perfected for consistent results with the galvanisers. |
#4
Posted to rec.crafts.metalworking
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galvanizing old car frame
unk wrote:
this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car Didn't do it myself but I have seen one done. For cleaning a good washing with Dawn/water and rinsing to remove oil/grease. Then derusted in electolytic bath. The hardest part was finding a plant that still did hot dip and could fit a frame in the tank. Don't forget you need to plug any threaded holes and be sure the frame is square and unbent. -- Steve W. |
#5
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galvanizing old car frame
On Thursday, August 23, 2018 at 6:04:44 PM UTC-4, David Billington wrote:
On 23/08/18 12:25, unk wrote: this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car Depending on the galvanising plant capability it doesn't need to be de-rusted just degreased and paint removed. I have a couple of galvanising plants in the region and the better one acid dips the part which removes rust and mill scale, then dips in flux, salammoniac IIRC, then the zinc bath. Extra galvanising can be applied by a heavy sand blast prior to dipping. If the car frame is closed it may require drilling to prevent pressure build-up due to the zinc bathÂ* heat and allow the frame to drain, if an open C channel then likely no venting/drain required. A mate had a Marcos chassis galvanised and it went well but the guy that organised the job had taken someÂ* years to get the venting and dipping perfected for consistent results with the galvanisers. I guess that was one of the later Marcos chassis. (the early ones were made of plywood. g) -- Ed Huntress |
#6
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galvanizing old car frame
On Thursday, August 23, 2018 at 6:07:53 PM UTC-4, Steve W. wrote:
unk wrote: this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car Didn't do it myself but I have seen one done. For cleaning a good washing with Dawn/water and rinsing to remove oil/grease. Then derusted in electolytic bath. The hardest part was finding a plant that still did hot dip and could fit a frame in the tank. Don't forget you need to plug any threaded holes and be sure the frame is square and unbent. -- Steve W. Hot dipped is not the only way to go. Do not know how to find some one that does this, but there are people that galvanize some what larger thing such as bridges. they use a machine which feeds two zinc electrodes with essentially two MIG power supplies vaporizing the wires and depositing the zinc or the piece being galvanized. Dan |
#8
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galvanizing old car frame
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#9
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galvanizing old car frame
On Friday, August 24, 2018 at 12:46:11 PM UTC-4, David Billington wrote:
On 24/08/18 00:23, wrote: On Thursday, August 23, 2018 at 6:04:44 PM UTC-4, David Billington wrote: On 23/08/18 12:25, unk wrote: this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car Depending on the galvanising plant capability it doesn't need to be de-rusted just degreased and paint removed. I have a couple of galvanising plants in the region and the better one acid dips the part which removes rust and mill scale, then dips in flux, salammoniac IIRC, then the zinc bath. Extra galvanising can be applied by a heavy sand blast prior to dipping. If the car frame is closed it may require drilling to prevent pressure build-up due to the zinc bathÂ* heat and allow the frame to drain, if an open C channel then likely no venting/drain required. A mate had a Marcos chassis galvanised and it went well but the guy that organised the job had taken someÂ* years to get the venting and dipping perfected for consistent results with the galvanisers. I guess that was one of the later Marcos chassis. (the early ones were made of plywood. g) -- Ed Huntress Yes, my understanding is they switched to the steel chassis when there was a supply issue with the high quality marine plywood previously used for the wooden chassis. I knew a racing driver who recounted a tale of being in a wooden chassis Marcos IIRC when the flywheel came off the engine and started sawing through the ply, no damage done to him fortunately. Hmm. Wow, that could really shorten your legs. g I've read also that making the wooden chassis was very labor-intensive. -- Ed Huntress |
#10
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galvanizing old car frame
On Thu, 23 Aug 2018 21:05:51 -0500, Martin Eastburn
wrote: Then there is Chromite a yellowish finish often used on Al. The chrome attaches to the iron. It is then plated over or painted over. Martin On 8/23/2018 7:05 PM, wrote: On Thursday, August 23, 2018 at 6:07:53 PM UTC-4, Steve W. wrote: unk wrote: this car frame need some sections re-constructed due to rust, and enough other work that everything comes off the frame is an actual frame, has plastic body has anyone ever galvanized a car frame - what prep is needed beside basic oil/dirt/paint removal it could be electrolytically de-rusted (tank made from large poly sheet and wood frame on concrete floor), or will the galvanizing process handle leftover surface rust? only a few of these car frames made, buying another means basically buying another car Didn't do it myself but I have seen one done. For cleaning a good washing with Dawn/water and rinsing to remove oil/grease. Then derusted in electolytic bath. The hardest part was finding a plant that still did hot dip and could fit a frame in the tank. Don't forget you need to plug any threaded holes and be sure the frame is square and unbent. -- Steve W. Hot dipped is not the only way to go. Do not know how to find some one that does this, but there are people that galvanize some what larger thing such as bridges. they use a machine which feeds two zinc electrodes with essentially two MIG power supplies vaporizing the wires and depositing the zinc or the piece being galvanized. Dan Anybody that does boat trailers can do your frame. Lots of "hot dipped" trailers. Also stock tanks Check the AGA site for a list of their members - it can be found at https://galvanizeit.org/about-aga/galvanizer-locations |
#11
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galvanizing old car frame
On 24/08/18 22:34, Jim Wilkins wrote:
wrote in message ... On Friday, August 24, 2018 at 12:46:11 PM UTC-4, David Billington wrote: On 24/08/18 00:23, wrote: On Thursday, August 23, 2018 at 6:04:44 PM UTC-4, David Billington wrote: On 23/08/18 12:25, unk wrote: ... I guess that was one of the later Marcos chassis. (the early ones were made of plywood. g) -- Ed Huntress Yes, my understanding is they switched to the steel chassis when there was a supply issue with the high quality marine plywood previously used for the wooden chassis. I knew a racing driver who recounted a tale of being in a wooden chassis Marcos IIRC when the flywheel came off the engine and started sawing through the ply, no damage done to him fortunately. Hmm. Wow, that could really shorten your legs. g I've read also that making the wooden chassis was very labor-intensive. As I understand it the plane production for the wooden planes was easier to get going due to the number of wood working/cabinet maker type companies that could easily do the work, metal aircraft being more of a problem. A mate restores English Rose and Paul kitchens which were an upshot of companies after the war looking for something they could make with their metal working knowledge after the demand for aircraft dried up. I live in the area of the UK where Marcos cars were built and still plenty of people around that had a hand in their building as it was a bit of a cottage industry. |
#12
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galvanizing old car frame
wrote in message
... On Saturday, August 25, 2018 at 8:19:59 AM UTC-4, Jim Wilkins wrote: ... In that Wiki quote the period followed the quotation mark. Is that becoming general practice? -jsw It's British practice, standard in most of the English-speaking world. In American English, periods go inside of quotation marks almost without exception. The exception is certain cases of titles and labels. In British English, they can go inside or outside, depending on he logic of the situation. If you're interested, you should look it up. I tend to get it backwards. g The American style is the result of a typesetting quirk. The British style is the result of some logical decisions made around 1900. Take a look at the British magazine _The Economist_. You'll find examples of inside and outside. -- Ed Huntress I like that the Internet allows us to create new and modify old aspects of language that have outlived their usefulness, like indenting the start of paragraphs, but I want to understand the reasons behind them. -jsw |
#13
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galvanizing old car frame
On Saturday, August 25, 2018 at 12:45:40 PM UTC-4, Jim Wilkins wrote:
wrote in message ... On Saturday, August 25, 2018 at 8:19:59 AM UTC-4, Jim Wilkins wrote: ... In that Wiki quote the period followed the quotation mark. Is that becoming general practice? -jsw It's British practice, standard in most of the English-speaking world. In American English, periods go inside of quotation marks almost without exception. The exception is certain cases of titles and labels. In British English, they can go inside or outside, depending on he logic of the situation. If you're interested, you should look it up. I tend to get it backwards. g The American style is the result of a typesetting quirk. The British style is the result of some logical decisions made around 1900. Take a look at the British magazine _The Economist_. You'll find examples of inside and outside. -- Ed Huntress I like that the Internet allows us to create new and modify old aspects of language that have outlived their usefulness, like indenting the start of paragraphs, but I want to understand the reasons behind them. -jsw If it didn't impinge on my work, I don't know how interested I would be in it. But I do find it interesting. When I was editing medical texts, it was vital. No mistakes are tolerated -- period. Quite a few matters of type and punctuation are just artifacts of a decision made by some typesetter in the 17th, 18th, or 19th centuries. The inside period was just intended to reduce the likelihood that the tiny projection that makes a period would be less likely to be broken off in handling, since it was more protected inside of a quotation mark. And typesetters were often the ones who decided when two words (work, place) would be compounded into one (workplace). -- Ed Huntress |
#14
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galvanizing old car frame
wrote in message
... On Saturday, August 25, 2018 at 12:45:40 PM UTC-4, Jim Wilkins wrote: ...... If it didn't impinge on my work, I don't know how interested I would be in it. But I do find it interesting. When I was editing medical texts, it was vital. No mistakes are tolerated -- period. =========== We were supposed to be able to write flawlessly (though not necessarily with good style) for chemical journals, too. It's very important to spell chemical names correctly. https://en.wikipedia.org/wiki/List_o..._unusual_names |
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