Re: Silver Solder/Soldering
In a message dated 12/6/00 8:36:08 AM Eastern Standard Time, [EMAIL PROTECTED] writes: << Try this one for brazing: http://www.handyharmancanada.com/TheBrazingBook/bbook.htm >> In looking at the Handy & Harmon Brazing book, I came across the following entry for Soldering Filler Metals. According to the solder specs for 95% Tin and 5% Silver, shown below, the solder is "not for brass", but the 3.5% Silver is OK for brass. Does anyone know why? I have been using the 5% Silver solder on brass, with seemingly good results, when a joint of greater strength was desirable then soft solder, but the application did not require a high Silver content solder. Am I missing something? Filler Metal Solidus °F/°C Liquidus °F/°C Comments 96.5Sn/3.5Ag 430/221 430/221 Eutectic alloy. Wets Cu, Brass, Steel, SS. 95 Sn/5 Sb 452/233 464/240 For Cu to Cu. Good creep strength. Not for brass. Thanks, Bill Kuehsel Cold Spring, NY
Re: Silver Solder/Soldering
Try this one for brazing: http://www.handyharmancanada.com/TheBrazingBook/bbook.htm On Wed, 6 Dec 2000 08:15:04 -0500, you wrote: >Is there any websites on the net about silver soldering boilers?? >Dougk >- Original Message - >From: VR Bass <[EMAIL PROTECTED]> >To: Multiple recipients of sslivesteam <[EMAIL PROTECTED]> >Sent: Wednesday, December 06, 2000 12:05 AM >Subject: Re: Silver Solder/Soldering > > >> Kozo Hiraoka wrote what must be the best (and prehaps the shortest!) >> treatise ever written on boiler soldering. It was in Live Steam magazine >in >> about 1996 or 1997, as part of the Pennsy switcher series, as I recall. >It's >> definitely worth calling Live Steam to see whether they have back issues. >> >> -vance- >> > Join the Small Scale Steam Models email group at Egroups for all things live steam trains. Just click on the following url: http://www.egroups.com/subscribe/small_scale_steam_models
Re: Silver Solder/Soldering
Is there any websites on the net about silver soldering boilers?? Dougk - Original Message - From: VR Bass <[EMAIL PROTECTED]> To: Multiple recipients of sslivesteam <[EMAIL PROTECTED]> Sent: Wednesday, December 06, 2000 12:05 AM Subject: Re: Silver Solder/Soldering > Kozo Hiraoka wrote what must be the best (and prehaps the shortest!) > treatise ever written on boiler soldering. It was in Live Steam magazine in > about 1996 or 1997, as part of the Pennsy switcher series, as I recall. It's > definitely worth calling Live Steam to see whether they have back issues. > > -vance- >
Re: Silver Solder/Soldering
The last thing I remember hearing is that gauge one boilers are completely under the radar of that law, and that if we just shut up and keep our noses clean the relevant department won't have to deal with us (which they don't want) and we won't have to worry about them (which we don't want). -vance-
Re: Silver Solder/Soldering
Kozo Hiraoka wrote what must be the best (and prehaps the shortest!) treatise ever written on boiler soldering. It was in Live Steam magazine in about 1996 or 1997, as part of the Pennsy switcher series, as I recall. It's definitely worth calling Live Steam to see whether they have back issues. -vance-
Re: Silver Solder/Soldering
Walt, In the July/August 2000 edition of Live Steam, Thomas P. Patton wrote a letter that stated that the State of Michigan had no intention of imposing such legislation onto the hobbiest. His letter also says that you can send a self addressed business size envelope with 55 cents postage attached (address below) and he will send you a free copy of the 10 page long document concerning the "hobby boilers" and the new law. Keep in mind that the boilers that Live Steam magazine is generally talking about are even a LOT larger than our little boilers. I never sent off for the copy due to the fact that I will probably never run in Michigan and he said that the law will not be imposed on the hobby boilers. If you send off for it, let us know if there's something in there that we should know about. Later, Trent mail to: Thomas P. Patton 1924 Indiana Avenue Kalamazoo, Michigan 49008-1840 Phone: (616) 381-4824 Fax: (616) 343-6640 [EMAIL PROTECTED] wrote: > Has anyone heard what ever happened in Michigan with their new boiler law? > Did it ever get applied to our "toy" boilers? > Keep your steam up! > Walt & Lunk
Re: Silver Solder/Soldering
Has anyone heard what ever happened in Michigan with their new boiler law? Did it ever get applied to our "toy" boilers? Keep your steam up! Walt & Lunk
Re: Silver Solder/Soldering
>My main concerns are that a poorly constructed boiler could explode and > cause some serious physical harm to my fellow hobbists, even at the low > pressure that some of these boilers operate at. Secondly, it would not take > very many instances where boilers caused physical harm that the federal or > state governments would step in and place severe restrictions on our hobby. > I do not wish to see either of these situations occur. Luckily, the hobby as a whole seems to have shared your concern, and accidents involving small-scale boilers are so rare as to be almost nonexistent. This isn't to say that none of us has burnt a finger or set ties afire, but no one has EVER recorded a boiler explosion or a serious injury in a small-scale live steamer. Let's keep it that way. Know what you're doing, hydro-test the boiler before steaming, and be careful with fuels and hot engines. -vance-
Re: Silver Solder/Soldering
There are many different manufacturers and probably twice as many kinds of silver solder on the market. For the purposes of small scale live steam engine boilers a 45% to 50% silver solder would be suitable for building boilers. As a retired professional weldor/machinist I feel that I should say that attempting to properly silver solder a pressure vessel such as a boiler is not something that should be undertaken by an amature with little or no training. There are many factors that must be considered when assembling pressure vessels besides the type of solder, material used and type of torch. In the U.S. Navy the pipefitters spend upward of 30 days, 8 hours a day of training to learn the procecures to produce properly assembled silver soldered joints in piping. If you, speaking in general terms, intend on building or modifying boilers I strongly recommend attending a local community college and receive training from a professional. I would not consider a hour discussion with the friendly local weldor or pipefitter as proper training. My main concerns are that a poorly constructed boiler could explode and cause some serious physical harm to my fellow hobbists, even at the low pressure that some of these boilers operate at. Secondly, it would not take very many instances where boilers caused physical harm that the federal or state governments would step in and place severe restrictions on our hobby. I do not wish to see either of these situations occur. Some individuals may say that there is little chance of these boilers exploding under the low pressures at which they operate. I believe that even a little chance is too great a risk. Therefore, I strongly recommend that anyone who intends on building or modifying a boiler of any kind to get some proper training, under the guidance of a professional, in silver soldering procdures. Being scalded by boiling water or pierced with metal fragments is not a pleasant experience. Take it from an oldtimer that knows. This is not meant to offend any particular individual, it is just a little general advice to all concerned. Salty (overly cautious)
