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  1. #136
    Join Date
    Jan 2004
    Location
    Mackay Qld
    Posts
    3,466

    Default What did I learn today?

    I learned that while my super dooper expensive Stick/Tig welding inverter unit has many and varied bells and whistles, that the automatic doohickey (AKA as a solenoid) didn't do its stuff when I forgot to turn off the cylinder valve.
    Its a lesson that will cost me over a $100 to learn.

    Grahame

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  3. #137
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    7,775

    Default

    Quote Originally Posted by Grahame Collins View Post
    Its a lesson that will cost me over a $100 to learn.
    Bugger! Been there, done that, Didnt loose a full bottle though. I now normally end up checking the bottle three or four times once I've finished for the day.

    Stuart

  4. #138
    Join Date
    Oct 2011
    Location
    Newstead Victoria
    Posts
    459

    Default

    Good morning,just read through the hard road lessons.I used to have apprentices once who used to leave gas turned on.Next day no gas.Off to local CIG now BOC for a refill.Used to educate them to wind out regulators at the end of a welding session gas can only get out if regulator is crook.Still used to check every night and shut off the bottles.
    By the way just got BOC a/c for 3 bottle rental e size 1oxy 1 acetylene 1 argon. 573 dollars is becoming outrageous and a luxury item,let alone what gas value is in them.I dont weld or need the hot spanner every day but am always grateful that resource is here.
    In the 50's here the local garage owner charged 1 pound just to light the torch.
    I tend now to list my welding jobs and do them as a lot just to economise on gas usage.
    Just asking here if other members feel the way i do about the hi bottle rental.

    I do travel to South east Asia and spend the winter months there for the past 7 years and note over there the price of gas and rental is what we would say is cheap 20 dollars for a g bottle of oxy.they do lots of gas welding there and thank god for the invention of d bar reo rod every thing gets fixed with that seen ladders crow bars even hack saw frame made from it.

    Checking the other day the local Air Liquide agent is offering 1 yr free rental on bottles.does make you wonder about the ''other gas company.

    Cheers John

  5. #139
    Join Date
    Jun 2011
    Location
    Australia east coast
    Age
    71
    Posts
    1,469

    Default

    Quote Originally Posted by j.ashburn View Post
    Just asking here if other members feel the way i do about the hi bottle rental.
    I think it's outrageous. As soon as I finish my boat the Argoshield cylinder is going and I'm switching to CO2 which I can buy outright.

    There's a company in Sydney selling cylinders & gas (or was) and I'm going to buy an E cylinder of Argon, bring it back here with me. I don't use a lot, just for TIG welding so it'll last me more than enough time to just write off the bottle if I have to.

    I don't do much oxy cutting since I got a plasma cutter and a friend is in the dive supplies biz so I can borrow a bottle of medical oxy off of him if I ever need to.

    PDW

  6. #140
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    7,775

    Default

    As I understand it we are being bent over something shocking*.
    My last invoice for 12 months rent on an E size bottle was $190.34.
    Last I heard Speed Gas in NSW(and southern QLD) is selling full D size for $339.
    Anyone got a recent price from speed gas?
    I use argosheild 54 which speed gas dont have.

    Stuart

    *of course if I dont like it and think its so easy, I could always start my own gas company

  7. #141
    Ueee's Avatar
    Ueee is offline Blacksmith, Cabinetmaker, Machinist, Messmaker
    Join Date
    Dec 2011
    Location
    Canberra
    Age
    39
    Posts
    4,467

    Default

    What did i learn, well, yesterday?

    I have the Mars running again and did some test cuts etc. I was wearing long sleeves and absently wiped my mouth on my sleeve only to feel a nasty sharp pain across my top lip.
    There was a shaving on my sleeve......it sliced my top lip open from end to end. The worst part was it wouldn't stop bleeding.......
    Lesson learned......i hope
    1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.

  8. #142
    Join Date
    Jun 2007
    Location
    North Of The Boarder
    Age
    68
    Posts
    16,794

    Default

    Just reading the price of Gas bottles these days I still have my Colt oxy kit and even tho they are small bottles there is no way I could even consider the outlay.

  9. #143
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    74
    Posts
    6,132

    Default

    I learned that I don't have any left handed boring bars.... never realised I'd need one... Josh was boring a 6" hole in a cast iron block, and needed to mount the boring bar horizontally, which means you need a left handed boring bar, since you can't run the mill backwards, the boring head would unscrew off the arbor..

    Ended up brazing a bit of carbide upside down on a right handed boring bar (after slight modifications with a high precision angle grinder.. )

    Moral of the story, get left and right handed versions when buying boring bars...

    Regards
    Ray

  10. #144
    Join Date
    Sep 2011
    Location
    Ballarat
    Age
    65
    Posts
    2,659

    Default

    I learnt today that you should not store the plastic container with the clip on lid full of brick and paving cleaner in your shed, and if you do then don't store it on your pigeon holes that you made and mounted to the wall. If you must then make sure the pigeon holes are attached to the wall a lot better than you should have but if you can't attach them a lot better then make sure that a bloke doesn't come and do the spouting on that wall and start banging the wall with a hammer. Otherwise this could happen. It is amazing how much 'flight' rust I have on everything now.

    Phil
    Attached Images Attached Images

  11. #145
    Join Date
    Apr 2004
    Location
    Melbourne
    Age
    64
    Posts
    250

    Default

    Makes me wince.

    Sorry to see it has happened.

    Is "Brick and paving cleaner", hydrochloric acid?
    Would an alkali or buffer neutralise it. Ie sodium bicarb? Lots.
    Chemistry was not one of my strong points so open to higher wisdom.
    cheers
    David

    ------------------------------------------------
    A society grows great when old men plant trees whose shade they’ll never sit in. (Greek proverb)

  12. #146
    Dave J Guest

    Default

    Quote Originally Posted by Stustoys View Post
    As I understand it we are being bent over something shocking*.
    My last invoice for 12 months rent on an E size bottle was $190.34.
    Last I heard Speed Gas in NSW(and southern QLD) is selling full D size for $339.
    Anyone got a recent price from speed gas?
    I use argosheild 54 which speed gas dont have.

    Stuart

    *of course if I dont like it and think its so easy, I could always start my own gas company
    I haven't got a price in the last 6 months, but it was around that then. He said there gas is pretty much equal to the BOC and a lot of trades man are using it with no complaints.

    Dave

  13. #147
    Dave J Guest

    Default

    Quote Originally Posted by Steamwhisperer View Post
    I learnt today that you should not store the plastic container with the clip on lid full of brick and paving cleaner in your shed, and if you do then don't store it on your pigeon holes that you made and mounted to the wall. If you must then make sure the pigeon holes are attached to the wall a lot better than you should have but if you can't attach them a lot better then make sure that a bloke doesn't come and do the spouting on that wall and start banging the wall with a hammer. Otherwise this could happen. It is amazing how much 'flight' rust I have on everything now.

    Phil
    You need to get over to the woodies section to get some advice on hanging them, LOL
    A real pain to clean up I bet.

    Dave

  14. #148
    Join Date
    Oct 2011
    Location
    Newstead Victoria
    Posts
    459

    Default

    Baking soda washing soda diluted in tank water put in in a garden sprayer to stop the acidic etching presume spirits of salts.muriatic acid or hyrochloric acid all the same was the paving brick cleaner. then wipe dry and treat with a grease pet jelly or vaseline or any light grease can use dwf wd 40 crc to absorb water or lanox i like lanox products as is natural wool fat lanolin available as a grease as can [aerosol] most important thing after treatment is to put a barrier between the moist air and contaminated object .Knowing good old Ballarat weather this time of yr is similar to here and lots moisture in the air overnight.Sorry to hear of your dilemna and know the feeling well,when the courting season with my pet possums here do the business in the shed. separate the acids the paints and the inflammable.Put them in cabinets. John.

  15. #149
    Join Date
    Aug 2008
    Location
    Charlestown NSW
    Age
    65
    Posts
    899

    Default

    Quote Originally Posted by j.ashburn View Post
    Checking the other day the local Air Liquide agent is offering 1 yr free rental on bottles.does make you wonder about the ''other gas company.

    Cheers John
    Interestingly, according to wikipedia (so it must be true) BOC was taken over by Linde Gas in 2006. The BOC Group - Wikipedia, the free encyclopedia

    Also, according to wikipedia, Air Liquide took over Linde Gas UK in 2007 Air Liquide - Wikipedia, the free encyclopedia

    I don't know if that means BOC here is actually owned by Air Liguide or not but it wouldn't surprise me. They have us over a bottle, so to speak.

    Does anyone know anything about low pressure Acetylene generation using a generator and Calcium Carbide? ( I think thats the material). I'm assuming thats how it was done back in the day before high pressure set ups became the norm. They used to use it for lighting on early cars etc.
    I have an old, small, hand held carbide light that someone gave me when I was a kid that I would like to try and restore one of these years. Its only a cheap asian made thing.

    bollie7

  16. #150
    Join Date
    Apr 2013
    Location
    Karana Downs QLD
    Posts
    79

    Default

    Hello bollie7, You have raised two interesting issues. I have a 1800's 'Magic Lantern' passed to me by my grandfather. It uses a Carbide Lamp as well - but that's the part that's missing. It was replaced with a 60w incandescent probably in the 30's or 40's. But my old Pop told me that it had a controllable water dripper to add the correct amount of water to the carbide rock in order to get the amount of Acetylene needed. But you mentioned this because we would all like some welding fuel that's cheap.

    Well don't tell the 'woodies' this, but cooked wood (dare I say 'timber'?) also produces a good fuel gas as does charcoal. Both my Pop & Dad regaled me with many funny yarns from the 'between the wars' years and beyond about the life experiences they had making and using gas producers to run cars, tractors and pumps. In my youth, I spent a lot of time making charcoal for my Dad (a traditional Blacksmith). Mallee stumps make the best charcoal.

    Yours in (Fuel) gas producing!! Daryl

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