What does it mean ...........

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Subject Author Date What does it mean ........... SteveB 05-04-2008  Re: What does it mean ........... Grant Erwin 05-04-2008  Re: What does it mean ........... SteveB 05-04-2008  Re: What does it mean ........... Grant Erwin 05-04-2008  Re: What does it mean ........... SteveB 05-05-2008  Re: What does it mean ........... Wayne Cook 05-05-2008  Re: What does it mean ........... Private 05-05-2008  Re: What does it mean ........... SteveB 05-06-2008
Posted by SteveB on May 4, 2008, 10:10 pm Please log in for more thread options When there is a lot of porous spongy glop on the underside of a flame cut that takes a lot of time to grind off and dress? Too much what? Wrong speed? Help me. 1/4" thick steel, 4# propane, 20# oxygen 00 tip. Steve -- "...the man who really counts in the world is the doer, not the mere critic-the man who actually does the work, even if roughly and imperfectly, not the man who only talks or writes about how it ought to be done." Theodore Roosevelt 1891 Posted by Grant Erwin on May 4, 2008, 8:47 pm Please log in for more thread options SteveB wrote: > When there is a lot of porous spongy glop on the underside of a flame cut > that takes a lot of time to grind off and dress? > > Too much what? Wrong speed? Help me. > > 1/4" thick steel, 4# propane, 20# oxygen 00 tip. > > Steve > Too much preheat, speed too slow, maybe tip too close to material for oxypropane. Grant Posted by SteveB on May 4, 2008, 11:53 pm Please log in for more thread options > SteveB wrote: > >> When there is a lot of porous spongy glop on the underside of a flame cut >> that takes a lot of time to grind off and dress? >> >> Too much what? Wrong speed? Help me. >> >> 1/4" thick steel, 4# propane, 20# oxygen 00 tip. >> >> Steve >> > > Too much preheat, speed too slow, maybe tip too close to material for > oxypropane. > > Grant I hate three words: maybe, should, and probably. Steve Posted by Grant Erwin on May 4, 2008, 11:49 pm Please log in for more thread options SteveB wrote: > >>SteveB wrote: >> >> >>>When there is a lot of porous spongy glop on the underside of a flame cut >>>that takes a lot of time to grind off and dress? >>> >>>Too much what? Wrong speed? Help me. >>> >>>1/4" thick steel, 4# propane, 20# oxygen 00 tip. >>> >>>Steve >>> >> >>Too much preheat, speed too slow, maybe tip too close to material for >>oxypropane. >> >>Grant > > > I hate three words: maybe, should, and probably. > > Steve > > OK. Try less preheat (possibly a different tip style, for example if you had an Airco torch you could go from a 164 tip to a 144 tip to a 124 tip ..), try moving faster, look closely at the severed workpiece to see if the top of the kerf rounded off, if so try raising the tip when you cut. Grant Posted by SteveB on May 5, 2008, 5:58 am Please log in for more thread options > SteveB wrote: >> >>>SteveB wrote: >>> >>> >>>>When there is a lot of porous spongy glop on the underside of a flame >>>>cut that takes a lot of time to grind off and dress? >>>> >>>>Too much what? Wrong speed? Help me. >>>> >>>>1/4" thick steel, 4# propane, 20# oxygen 00 tip. >>>> >>>>Steve >>>> >>> >>>Too much preheat, speed too slow, maybe tip too close to material for >>>oxypropane. >>> >>>Grant >> >> >> I hate three words: maybe, should, and probably. >> >> Steve > > OK. Try less preheat (possibly a different tip style, for example if you > had an Airco torch you could go from a 164 tip to a 144 tip to a 124 tip > ..), try moving faster, look closely at the severed workpiece to see if > the top of the kerf rounded off, if so try raising the tip when you cut. > > Grant The top of the cut looks nice. Almost square. I hold the torch at a very small angle pointing forward in the direction of the cut. As I cut, there are little globules that take off across the top planar surface of the metal. I know this is something simple, and would sure help me save some time dressing it up afterward. Steve