jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 16, 2017 13:46:40 GMT -5
flickr link - www.flickr.com/photos/67205364@N06/sets/72157690416358524Set up. Pre heated for 20 minutes(actually over an hour because people stopped by) Be sure to center pans over burner and pipe over burner: Then electric burner was cranked up to cherry red till bead formed Then I went to the floor with both and pushed them together hard. Line them up well !! Bead looks just short of machine made 200 psi weld. Inside of barrel has full circle bead the same The dogs didn't seem to interested. Grind bead off and cut snout shorter. Hols 3 gallons. So about a 35 pound barrel.
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Post by captbob on Dec 16, 2017 17:38:28 GMT -5
OUT FREAKIN' STANDING !!!
I'd probably leave town before wife comes home OR go buy a new skillet. But that's just me ...
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Wooferhound
Cave Dweller
Lortone QT66 and 3A
Member since December 2016
Posts: 1,423
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Post by Wooferhound on Dec 16, 2017 18:59:11 GMT -5
Too Cool . . .
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 16, 2017 19:24:43 GMT -5
OUT FREAKIN' STANDING !!! I'd probably leave town before wife comes home OR go buy a new skillet. But that's just me ... There is a lot a variations to be had using those fittings and that pipe. If I can find some plate stock I can way reduce costs as the fittings are the more expensive part. One thing for sure is it is easy to stick together.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 16, 2017 19:27:20 GMT -5
HDPE is supposed to be almost 3 times more abrasion resistant than PVC. Depending on the HDPE compound they use it can be many more times abrasion resistant than PVC. So a good choice for tumbler.
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Post by Drummond Island Rocks on Dec 16, 2017 22:27:20 GMT -5
Thats a good looking barrel. I wonder if the thickness will help deaden the noise that usually comes with PVC barrels?
Chuck
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Post by Rockoonz on Dec 16, 2017 23:00:06 GMT -5
HDPE is supposed to be almost 3 times more abrasion resistant than PVC. Depending on the HDPE compound they use it can be many more times abrasion resistant than PVC. So a good choice for tumbler. The carbon black adds to strength and abrasion resistance as well. The fillers in other colors of plastics and rubbers are clay and vinyl based and add no structure. The reason you don't often see tires that aren't black.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 17, 2017 0:50:55 GMT -5
Thats a good looking barrel. I wonder if the thickness will help deaden the noise that usually comes with PVC barrels? Chuck I doubt it Chuck. Sound travels well in solids. Softer helps. But this plastic is a lot harder than rubber like your Lortones. But a good bit softer than PVC. Will find out soon.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 17, 2017 0:55:12 GMT -5
HDPE is supposed to be almost 3 times more abrasion resistant than PVC. Depending on the HDPE compound they use it can be many more times abrasion resistant than PVC. So a good choice for tumbler. The carbon black adds to strength and abrasion resistance as well. The fillers in other colors of plastics and rubbers are clay and vinyl based and add no structure. The reason you don't often see tires that aren't black. "CORROSION, ABRASION, AND CHEMICAL RESISTANT. Polyethylene piping’s performance in mining, dredging and similar applications proves it will outwear many more costly piping materials when conveying a variety of abrasive slurries"
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 17, 2017 2:19:51 GMT -5
Smaller frying pan welds, say 6 inch and 4 inch should be real easy. This is a big pipe.
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Post by grumpybill on Dec 17, 2017 5:22:23 GMT -5
I'd probably leave town before wife comes home OR go buy a new skillet. But that's just me ... The last time my wife was gone for a week I had to buy a new toaster oven before she got back. Don't ask........
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 17, 2017 9:43:04 GMT -5
Flat plates of HDPE cost a lot of money as opposed to the pipe. Much cheaper if you can bond flat plate to the pipe rather than buying fittings like end caps and reducers. Solved the problem of finding flat plate. Used butcher block as long as it is HDPE. Most is. Used restaurant supply companies have a hard time giving used butcher block away. Original buyer paid big money for it. Well well, just did a 10 minute weld, 1/2" HDPE butcher block(from boneyard) to HDPE black pipe. Welded in pan, and beat the crap out of it to test weld strength: Rockoonz - did not clean or use solvent. Worse case weld.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 17, 2017 9:57:29 GMT -5
adjustable hole cutter. This one for 2 to 8 inch holes on a drill press. For cutting entry hole/circles in/of HDPE plate.
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Post by orrum on Dec 17, 2017 10:39:51 GMT -5
Way to go Jim! Very neat looking barrel.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 17, 2017 10:46:54 GMT -5
Way to go Jim! Very neat looking barrel. Liking this stuff Bill. It his it's own glue.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,339
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Post by quartz on Dec 17, 2017 15:09:48 GMT -5
That looks like quite a barrel, and no glue other than heat. May I suggest a way to track barrel wear? If you have a close enough tolerance scale, weigh the barrel at each cleanout, or equal number of cleanouts, to get an idea of how much it is wearing, hard to measure otherwise. Anxious to see how it lasts.
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jamesp
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Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 18, 2017 6:17:20 GMT -5
That looks like quite a barrel, and no glue other than heat. May I suggest a way to track barrel wear? If you have a close enough tolerance scale, weigh the barrel at each cleanout, or equal number of cleanouts, to get an idea of how much it is wearing, hard to measure otherwise. Anxious to see how it lasts. Excellent idea. I used to use a light to see thin spots in PVC. Oh well.. out of the question with this black plastic. Was looking at mining HDPE pipe specs. This standard grade SDR 17 is made of HDPE that out lasts PVC by 2.4 times in handling abrasive slurries. A specialized weldable HDPE is made for mine slurries that outlasts PVC by 12 times. The scope of discussion was about chemistry of plastics and was well beyond comprehension so the 'hows & whys' unknown.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 18, 2017 6:46:34 GMT -5
To move on to tumbling yet bigger rocks this design will be employed but with a 6 inch entry pipe. (4 inches shown for comparison). Will make 4 of these for most tumbling. Holds 1.5 gallons. 8 inch pipe makes a 6 inch entry much easier. Will use a 6 inch Fernco cap. 8 inch PVC fittings = lots of $. The butcher block ends are cheap. Will have to use the fly cutter on the slower drill press. That thing is a handful at minimum 800 RPM little bench drill press. Reducer end in progress, lol, will move to slower drill press w/fly cutter. Makes precision cut. practice piece 4 of these nubby barrels with 6 inch entry. SDR 11 pipe for 6 inch reduction since entry wears fastest. 4 inch shown. SDR 11 thick wall for entry. 3/4" butcher block for reducer bushing. High speed torture chamber for rocks. 4 inch SDR 17 pipe at right as comparison, too thin of walls.
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Post by rmf on Dec 18, 2017 7:38:20 GMT -5
jamesp insted of using the smaller opening with more black pipe, you could cut a hole in the white end and use a sewer plug. The tumbler drums I have are all plastic and I asked what they suggest and they said a 6" sewer plug. the problem I ran indo was the abrasion in the internal face of the plug. So I took epoxy and SiC pieces from an old grinding wheel and filled the open pattern on the inside of the plug with SiC & epoxy. I have had no more wear problems.
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jamesp
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Member since October 2012
Posts: 36,154
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Post by jamesp on Dec 18, 2017 9:54:41 GMT -5
jamesp insted of using the smaller opening with more black pipe, you could cut a hole in the white end and use a sewer plug. The tumbler drums I have are all plastic and I asked what they suggest and they said a 6" sewer plug. the problem I ran indo was the abrasion in the internal face of the plug. So I took epoxy and SiC pieces from an old grinding wheel and filled the open pattern on the inside of the plug with SiC & epoxy. I have had no more wear problems. Well, the Fernco covers wear out after a long time, so they have issues with wear too. I have screwed a piece of round wood onto the inside of the Fernco cap which eliminates the wear. There is a competitor to Fernco at Lowe's that sells a triple thicker cap. It never has worn out. The only thing about a sewer plug is running barrels 3 side by side. The wing nut causes a problem where the Fernco caps can rotate against the butt of the other barrels in series.
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