Pins to weld on to oil tank ?

[Hunt4sap]

Does anyone know where I could get some type of pins to weld onto inside of my oil tank build to bend over to hold the fire blanket I'm putting inside of it? ( It's 1" fireblanket)

I've seen this somewhere else but not sure what they're called or where to get them?

I'm using a wire feed MIG welder to construct the evaporator itself that I can use to weld these fabric holders on with, thanks ahead of time
Matt

[minehart gap]

Why not just use the welding wire? Just tac the end on, spool some out and cut it off, then do it over and over. It should work so long as you are using a softer wire.

[Hunt4sap]

The thought crossed my mind but I don't know if .30 will be strong enough, hmmmmm
Got me wondering if I used the max thickness wire I can run on my mig gun if that would suffice...

[Chicopee Sap Shack]

I welded nuts in then used pieces of threaded rod as pins with fender washers and nuts to hold the blanket. This allows me to replace the pins as needed. Or just weld in nuts and use bolts and fender washers.


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[Steviep]

The pins you are talking about should be available through an insulation dealer or a metal building supplier. They have a metal backer plate that they epoxy to metal or concrete.

[USMCLtcol]

I used self tapping screws with fender washers. Drill from the inside thru the blanket and grind off what comes thru to the outside. 2 seasons no issues.

[Hunt4sap]

That's how I did my 55 gallon evaporator, I have a welder now so figured I'd find a alternate way to hold fabric that wasn't using screws and grinding them off

I seen a picture of a build that had pins of some kind a while ago that I was hoping to stir an old picture of the pins up...

[Chicopee Sap Shack]

Leader sells the pins and backer plates for $9 each. They are inconel (sister to stainless). To pricey for me


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[Hunt4sap]

No bought, not paying that

[Haynes Forest Products]

You might be thinking about the pins that body shops spot weld to dents with a spot welder and pull on with a slide hammer. I used SS 1/4 bolts that I welded onto the sides and then once the blanket was pressed over them O used the fender washer and bolts BUT over time the heat flaked them all away and now the blanket is held in place just by the burned down pins.

I would use nails maybe even cement nails there thicker.

[Cjadamec]

I welded nails to the sides of my fire box to hold the insulation blanket to the sides. Any common nail you have should work just fine. They even have a nice flat head to make it easy to tack in place.

[Hunt4sap]

I welded 1/4*20*1.25" L bolts that I had around
Got floor poured last weekend and new OTE now in my SS
Need to put 1" fireblanket/ bricks in and get a AUF blower motor .18869
More pictures to come, thanks to all for insite and answers to all my questions up to this point
Matt

[billschi]

I too just welded nails in both of my oil tank evaporators. They're cheap and they hold well. I also cut the tin from a 55 gallon drumto lay over the nails after I placed the rock wool insulation. It made a good bed to lay firebrick on.

[Haynes Forest Products]

Hunt4sap nice looking arch and sap shack. Now from experience I can say that everything that leaves your shack out the flue stack or out the copula has to be replaced by incoming air. That air is going to come thru all those openings in the walls and if you over insulate your arch your going to freeze standing around stomping your feet.

[needmoremaples]

Been looking too. I welded the stick rod to the walls and am planning to just slide the washer over that. Got special ones for cast iron from work for my wood stove kit door.

Pieces of tin or stove metal might be what I end up doing too. Got this link today and will call tomorrow. I looked for a few hours so far then someone on here sent me this link. stud.midwestfasteners.com/category/weld-pins

[SyncroScott]

Bit of a dumb question maybe, considering not many seem to suggest or use them, but what is the issue with using small brad nails and some cheap washers both just tack welded?

[Cjadamec]

Nothing wrong with tack welding nails to hold the insulation. It works great. You may want to step up the size of the nail just to make it a little easier to hold and weld. A common nail with a head makes it pretty easy.

I didn't even bother with washers I just bent the nail to hold the insulation in place.

[needmoremaples]

used stick weld rod on a different arch. got insulation washers from an insulation contractor. found it easier to make the pins up and put on stinger to push thru insulation to the tank wall. after a bit of spark i just pull the ground and un clip the stinger. push the washer on tighter then. this leaves some rod sticking into hot area so we'll have to see how that goes. i could grind or nip off the rod too but it may just break it off too.