quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Jul 21, 2018 14:48:51 GMT -5
A couple years ago a question came up about using Corian for tumbler barrel parts; seems no one had tried it. My wife ran across some 12" square, 1/2" thick pieces for cheap at a sale and they sat until jamesp came up with parcels of that "road gravel" grit for sale. I built an 8" dia. x 12" long barrel with Corian ends to run the grit for roughing, and to see how long the Corian would last. The initial load was 26lbs., ran at 57 R.P.M., and at 184 days of running I noticed a leakage. I suppose a bit of pressure buildup caused the barrel end cover to crack, and I found it to be worn to 1/8" thick in the center. I ran the loads with 2 cups of the grit for generally 2 weeks, did a clean-and-sort and started it again without cleaning the slurry out completely. Overall recommendation on the Corian; not really worth making parts out of it, too brittle and not very abrasion resistant. I've tried several ways to get a little pic. off flickr, doesn't work like last time, they've fiddled w/it again, still no luck. www.flickr.com/photos/156451309@N02/43505712852/in/dateposted-public/lightbox/ O.K., I can now establish a link to a pic. on flickr, will someone give me a hand as to how to move the image itself here. What has worked in the past: Click on picture in flickr, this brings picture up as an individual. Click on view all sizes in size selector box, this brings up a different screen where I select the size of pic. to move. While in this screen, I right clicked on the pic. and hit copy, then came to forum, brought up insert image, removed the http and hit paste. This has worked until today. Now the image won't move over when I hit paste; HELP
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Jul 22, 2018 3:46:29 GMT -5
I got you Larry.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Jul 22, 2018 4:06:09 GMT -5
I gotta say the SDR 17 HDPE(or HDPE 11 for super duty) is fastest/easiest/most bulletproof barrel. One end cap, one reducer, one weld on the stove, one cut on the elongated snout of the reducer, add Fernco cap and you are done. The internal weld bead has not even worn off yet.
It is the HDPE and it's reputation for resisting abrasion in the mining industry when carrying abrasive slurry at high speeds/high pressures. Me HDPE barrels are still laughing at the road gravel SiC.
Getting some freaky fast coarse grinds at 85 RPM, bulk SiC and 80% barrel fill. It is the high speed that picks up the large SiC and circulates it well. It is the high rotation speed and aggressive SiC that broke the slow coarse grind barrier at this tumbling operation.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Jul 22, 2018 11:22:49 GMT -5
I have no dispute with the HDPE barrels being superior, problem here is getting the materials w/o paying a fortune in shipping or driving for several hours. Things here just aren't as available as in some other parts of the country. Then too, is the idea my wife always promotes [or grimaces at] in me, the challenge of trying things.
Awright, howja make the picture happen?
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