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How can I blacken stainless steel spokes?
Johan Bornman wrote:
Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? Wok with motor oil. Turn on high. |
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#12
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How can I blacken stainless steel spokes?
he
Stainless Steel Blackener 370 is an acidic liquid concentrate used full strength or diluted with up to 3 parts water to blacken stainless steel at room temperature. Recommended for color coding parts and blackening engravings on stainless steels. Produces a pleasing dark gray/black finish. No sealer required. link he http://www.caswellplating.com/kits/black.htm#stainless ======== This is a posibility. There is a mention that there is a process of applying aluminum to stainless steel and then anodizing it the color you want: December 10, 2008 You can also treat stainless steel with IVD - ion vapour deposition - to give an aluminium coating. You can then anodise it in the same way as aluminium. Andrew Pridmore - Gillingham, Kent, UK link he http://www.finishing.com/245/20.shtml Good luck, cause some of this stuff you would have to buy it, and the cost is high compared to the need for black spokes. hope this helps greg "Mike Rocket J Squirrel" wrote in message ... On 5/12/2009 1:42 PM wrote: black anodized steel is a common thing, all you have to do is find out how it is done and do it on a small scale for spokes. hope this helps greg I'm pretty sure that anodizing isn't used on steel. "Anodic films are most commonly applied to protect aluminium alloys, although processes also exist for titanium, zinc, magnesium, and niobium. This process is not a useful treatment for iron or carbon steel because these metals exfoliate when oxidized; i.e. the iron oxide (also known as rust) flakes off, constantly exposing the underlying metal to corrosion." http://en.wikipedia.org/wiki/Anodize I wonder how stainless parts are made black, commercially... some Googling turned up: "...there is a commercial proprietary product available for blackening stainless steel based on copper-selenium chemistry. It is used at room temperature. More information can be obtained by doing an internet search under the term “blackening process.” http://www.pfonline.com/articles/cli...cl_plate3.html -- Mike "Rocket J Squirrel" Bend, Oregon |
#13
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How can I blacken stainless steel spokes?
jim beam wrote:
Tosspot wrote: Johan Bornman wrote: Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? Can't you just heat them up and dunk them in motor oil. I seem to recall that from boyhood buggerings about. not while keeping their full work hardened strength. Ah. Probably best not do that then |
#14
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How can I blacken stainless steel spokes?
On May 12, 8:18*pm, Johan Bornman wrote:
Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? You can have the spokes polished and black-chromed . However. chromeplating covers cracks and may even cause them, which is why stressed parts should not be chrome-plated. The same applies to ion-plating, which is good for a matte result. Or you can dip the spokes in hot oil and then bake it on in an oven. I don't know if a microwave will do the the job. |
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How can I blacken stainless steel spokes?
Andre Jute wrote:
On May 12, 8:18 pm, Johan Bornman wrote: Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? You can have the spokes polished and black-chromed . However. chromeplating covers cracks and may even cause them, which is why stressed parts should not be chrome-plated. The same applies to ion-plating, which is good for a matte result. Or you can dip the spokes in hot oil and then bake it on in an oven. I don't know if a microwave will do the the job. Is there any sort of oxide treatment that might be suitable? |
#16
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How can I blacken stainless steel spokes?
On May 12, 1:18*pm, Johan Bornman wrote:
Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? Dear Johan, Modern black stainless steel spokes seem to be coated or plated: "Today’s fashion is black or coloured spokes. Although the coating is very tough, it is not entirely scratchproof. This means that the wheelbuilder has to take this risk into account and match his procedure accordingly. For Holland Mechanics the black spoke fashion meant that new sensors to detect black spokes had to be developed for the trueing machines. With the new sensor, the machine will even indicate when various spokes are mixed up in one wheel." http://www.hollandmechanics.com/2007/pdf/HMToday_3.pdf "DT says its black spokes are the same strength as its silver spokes and that the coating doesn't affect the strength." "As I understand it, some black spokes are coloured by a plating process that's more-or-less chroming. Chrome plating has been known for years to make spokes brittle, which is why silver-coloured chrome- plated spokes all but vanished in the 80s." "But the bike industry has the knowledge retention of a goldfish." --John Stevenson, Editor-in-chief, Future cycling http://www.bikeradar.com/forum/viewt...f 08a217c8bba *** Highwheeler spokes were often covered with black enamel from the rim to roughly the crossing, and then nickel-plated the rest of the way to the hub, like this: http://home.att.net/~jfgorham/images/20060727_02.jpg Enamel resisted pitting and wear better than nickel plating--the tougher enamel was better suited to the end of the spoke down in the dirt-road mud and dust (and could be renewed by the owner, with some effort), while the more fragile but more attractive nickel plating (which few owners could re-do on their own) stood a better chance of surviving a foot or so above the road. Once you've seen the real thing or a color photo like the one above, the nickel-plated starburst at the hub is obvious in black-and-white photos: http://www.pepcak.webzdarma.cz/vyspan620.jpg Like modern black spokes, the black and nickel combination was prized for looks, but they enamel and nickel-plating also offered some protection to the non-stainless steel spokes, and the practice continued when safeties were introduced: http://farm3.static.flickr.com/2146/...29411184_o.jpg Bikes #1 and #2 in this photo have nickel-plated starburst spokes: http://i36.tinypic.com/vfdx1c.jpg Here's an early explanation of the enamel-nickel combination: "If your wheels are not yet built up, do not attempt the removal of hardened cups from hubs. The rims should be store enamelled before wheels are built, and the spokes carefully brush enamelled after completion; this insures good wearing cups. Many of our large firms run the risk of softening cases by enamelling complete for sake of appearance. If you must have perfection in appearance and finish, have your spokes nickel-plated right through if direct; and if tangent, plate 3 in. from headed end, and brush enamel up to where spokes cross each other." --"English Mechanic," 1894 http://books.google.com/books?id=DIU...utput=textwith some odd colors: Black wasn't the only color for spoke enamel: "Model 40 [safety from Warwick in 1898], the highest grade ladies' Cleveland, is one of the most notable productions of the year, with specifications, in part, as follows : 28-inch wheels, with blue spokes . . ." --"Outing," 1898 http://books.google.com/books?id=PKz...page#PPA517,M1 Cheers, Carl Fogel |
#17
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How can I blacken stainless steel spokes?
Tosspot wrote:
Johan Bornman wrote: Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? Can't you just heat them up and dunk them in motor oil. I seem to recall that from boyhood buggerings about. I'd think that would possibly change the heat treating properties of the steel, if any. (what you're describing is basically oil quenching...) I'd be tempted to try a home blueing kit intended for firearms - you won't get a perfectly black finish but close to it, and it won't look like paint either nate -- replace "roosters" with "cox" to reply. http://members.cox.net/njnagel |
#19
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How can I blacken stainless steel spokes?
On May 12, 1:18*pm, Johan Bornman wrote:
Nowadays with all the spoke options I am hard-pressed to keep, or indeed, find stock of all the permutations. How do they blacken spokes and can this be done in a workshop as and when needed? Are you in the US? A bike shop? If so I can give you the name of my spoke supplier, DT spokes, all lengths, black or silver, various gauges. |
#20
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How can I blacken stainless steel spokes?
wrote:
he Stainless Steel Blackener 370 is an acidic liquid concentrate used full strength or diluted with up to 3 parts water to blacken stainless steel at room temperature. Recommended for color coding parts and blackening engravings on stainless steels. Produces a pleasing dark gray/black finish. No sealer required. link he http://www.caswellplating.com/kits/black.htm#stainless ======== This is a posibility. There is a mention that there is a process of applying aluminum to stainless steel and then anodizing it the color you want: December 10, 2008 You can also treat stainless steel with IVD - ion vapour deposition - to give an aluminium coating. You can then anodise it in the same way as aluminium. Andrew Pridmore - Gillingham, Kent, UK link he http://www.finishing.com/245/20.shtml Good luck, cause some of this stuff you would have to buy it, and the cost is high compared to the need for black spokes. hope this helps greg "Mike Rocket J Squirrel" wrote in message ... On 5/12/2009 1:42 PM wrote: black anodized steel is a common thing, all you have to do is find out how it is done and do it on a small scale for spokes. hope this helps greg I'm pretty sure that anodizing isn't used on steel. "Anodic films are most commonly applied to protect aluminium alloys, although processes also exist for titanium, zinc, magnesium, and niobium. This process is not a useful treatment for iron or carbon steel because these metals exfoliate when oxidized; i.e. the iron oxide (also known as rust) flakes off, constantly exposing the underlying metal to corrosion." http://en.wikipedia.org/wiki/Anodize I wonder how stainless parts are made black, commercially... some Googling turned up: "...there is a commercial proprietary product available for blackening stainless steel based on copper-selenium chemistry. It is used at room temperature. More information can be obtained by doing an internet search under the term �blackening process.� http://www.pfonline.com/articles/cli...cl_plate3.html -- Mike "Rocket J Squirrel" Bend, Oregon you guys, with respect, are smoking crack. the per-item cost to do all this stuff is just ridiculously high compared to purchase of the requisite parts form an expert manufacturer that will not weaken or fatigue or corrode their own product. just buy the freakin' things and quit this ridiculous festival of ignorance. |
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