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Welding disasters?
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alastairq



Joined: 14 Oct 2016
Posts: 984
Location: East Yorkshire

PostPosted: Sun Dec 23, 2018 6:35 pm    Post subject: Reply with quote

22 years ago, I managed to blow the back roof, and half the back wall, off my garage.

I had a rolling chassis, sitting on a trailer, in my double length garage.....using an arc welder [Sureweld]....to mount some small brackets, or some-such, down by the garage door end.
20 feet away or so, planted behind a tool bench, at the back end of the garage, was a recently fully charged battery.

Needless to say, a big gob of spatter took off, cleared the length of the garage , down behind the workbench....all in slow motion....the subsequent explosion as it hit the fully charged battery was impressive.
At the time I was lying down alongside the trailer, welding the chassis mounted on top......but the explosion lifted the corrugated roof panels at the far end, clean off, and knocked the top two lengths of slatted concrete walling off the top of the rear wall.

Behind the garage [and home] was a field, followed by what normally would be considered to be Greenland! {Or, felt like it!]
Re-building consisted of hopping over the back hedge, and retrieving sundry large pieces of garage.

I was annoyed as I was fully aware of how gassy a newly charged battery could be, and had deliberately hidden it from view, well away from where I was welding.......
Best laid plans, etc??
_________________
Dellow Mk2, 1951 built, reg 1952.
Ford Mustang coupe, 1967, 6 cylinder auto.
Fiat 126 BIS
Cannon special [1996 registered. Built in 1950's]
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Ford Pop chassis, Ashley 1172 bodyshell, in pieces.
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Paul fairall



Joined: 17 Nov 2016
Posts: 430
Location: North west Kent

PostPosted: Tue Dec 25, 2018 3:58 pm    Post subject: Reply with quote

No, works a treat as is. Mapp is a mix of propane and acetylene if I'm not mistaken. Propane and oxygen works well I believe but more heat from mapp.
OuBallie wrote:
Paul,
Did you have to do any mods to the sapphire unit?

Geoff - Just about back to normal at last.

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OuBallie



Joined: 02 Mar 2013
Posts: 225
Location: South Norfolk next to Suffolk

PostPosted: Tue Jan 22, 2019 2:32 pm    Post subject: Reply with quote

Thanks Paul.

Geoff - Ham & cheese with Rooibos consumed.
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Too many hobbies, not enough time!
1935 Austin Seven Ruby ARQ
1957 Austin A35 2-door
1967 Morris Minor 2-door
2007 Fiat DoblÚ MultiJet (It carries the spares etc)
Model Engineering
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Rusty



Joined: 10 Feb 2009
Posts: 181
Location: Bunbury, Western Australia

PostPosted: Wed Jan 23, 2019 12:24 am    Post subject: Reply with quote

I haven't had any "disasters" myself, but my brothers father in-law was restoring a Mk 1 Cortina and because he didn't have welding gear or experience decided to do a course on bodywork at his local tech school. He was busily welding away under the car one evening when he noticed a "glow" from the metal of the floor pan near where he was working. Taking a step to the side he saw that the entire car was being consumed by fire on the hoist at the school. The long and short of it the car was totally destroyed !
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