- Thread starter Bornfree
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It's worth considering that there might be issues with the welder internal components at those temperatures. If not whilst it's in the coldstore, then there might be condensation issues when it is brought back out to normal temperatures again.
Brad93
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Use low hydrogen electrodes as a minimum, ideally something with decent charpy's
If you can preheat, do.
If not just use a long arc, draw it back a good two inches to the start point then weld over your strike.
I.e. Filarc 56s, CONARC 49, Bohler Fox EV50
If you can find a rod with a touch of nickel that will ensure low temperature service.
If you can preheat, do.
If not just use a long arc, draw it back a good two inches to the start point then weld over your strike.
I.e. Filarc 56s, CONARC 49, Bohler Fox EV50
If you can find a rod with a touch of nickel that will ensure low temperature service.
Yes I reckon it will be 10 minutes working 10 minutes warming up.
Brad93
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-20 is nothing in a still environment, if you have a few layers on and are moving around. Canada and Russia regularly experience those temperatures and people are still out in the field working.
julianthegypsy
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It's OK in bright sunshine, as it usually is in Canada on the prairies. Not so sure about a cold room though! Battery heated socks are ace though!
julianthegypsy
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If I went out to fix a tractor in winter in Northern Alberta, the farmer would say I had rocks in my head! Tractors were brought to the shop and left inside over the weekend to thaw out. These were tough old Ukrainian migrants who came to Canada pre 1975. You got a wooden hut, with gaps in the planks and a tin roof and a tin roof, a pot bellied woodstove and 256 acres of land to clear and turn into farmland. I've been to one farm that had several million dollars worth of kit in the yard and the farmer lived in a small bungalow with an outside loo. It regularly hits 40 below there too!
I used to work in a food factory & repairs in the-30 deep freeze were a job no-one wanted to do. We togged up in padded ski suits but it was always your toes & fingers that gave up first. Steel toe caps are not a good idea in that temperature!
Even worse was the spiral belt blast freezer at -40! With the big fans running you could only spend a minute or so in there. Even with the fans off you had to be very careful as bare skin would instantly stick of you touched any of the stainless steel in there.
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We had the opposite at the foundry, it was welding up the heat exchanger fins in the chimney that no-one wanted to do, the welder was lowered down in a bucket to do the repairs, the chimney was barely wider than their shoulders and it got that hot they only did 15 minutes before coming up and one of the other welders would take over for another 15 minute stint. This was in the pre H&S 70's.
Smallfry
HE's Spartacus.
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Just after I left school, I had a fill in job at a bakery, turning out loaves coming directly out of the ovens on a non stop conveyer belt. You could see the red heat inside, and had to wear fireproof gauntlets. This was the job for the whole shift, and was very hot work. One of the guys there had been doing the job for 14 years !
I left after a week, I decided not to make a career of it.
I left after a week, I decided not to make a career of it.
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At least you were able to add "loaf tipper" to your CV 
Jelly_Sheffield
Time is an illusion. Lunchtime doubly so.
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Composite toe boots are the way to go for cold weather, even at positive single digit temperatures they make a meaningful difference to your feet.
I had similar - but mine was as part of summer holiday work. Out of the oven would come 3 flan bases in a tin. They used to come of the conveyor at a rate of knots - and you only had some oven cloths none of these fancy gloves... But as the tins were drenched in oil to stop the flans sticking - the cloths got sodden through, so you're now working with hot oven tins, in hot oil soaked rags - I lasted a whole morning before my 16 year old softy hands got blistered!
what kind of railway track ? the US stuff which may or may not be the same as yours has preheat. post heat. maintain inter pass. some it recomends not welding below specific ambient like 0c. specific rods are rail build and rail tuff. but not sure what kind of rail your dealing with.
-30c would also probly be well below the machines operating range but you might be fine if its warmed up outside and only used for short time in the cold room.
of course warm the rods
-30c would also probly be well below the machines operating range but you might be fine if its warmed up outside and only used for short time in the cold room.
of course warm the rods
premmington
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There was an old insulated artic trailer around the back of our warehouses. Landlord got some "people" to cut it up for scrap. One of the idiots using a grinder managed to ignite the foam panels. Didn't help there were loads of drums of petrol/diesel mix inside and underneath it. Along with tyres and all sorts of junk. Massive fire. The trailer chassis bent to the floor. It was only 2 feet away from one of the units. Thank God for brick walls. No damage at all to the building and yet the steel cladding 20 feet away on another building partially melted.Mini Grenfell tower incident.
