Abrasion Resistance Comparison

I would go with impact resistance testing....

Today’s news.

https://www.canadianmanufacturing.com/manufacturing/tornado-global-hydrovacs-signs-supply-agreement-with-ditch-witch-283215/

I believe the shore system uses an impact. https://en.wikipedia.org/wiki/Shore_durometer

What I need is some way to compare apples.. Shore to Rockwell, Brinnel etc.

http://www.cnccookbook.com.s3-website-us-east-1.amazonaws.com/Calculators/HardnessConversionChartsHbHrcHvShoreVickers.html

Excellent, thank you!

https://www.mcmaster.com/abrasion-resistant-coatings/

Check out the specs on UHMW Polyethylene.It is used as liners in mower decks,snow blades, chain tensioners,conveyor wear strips,even artificial joints etc.Higher resistance to abrasion and impact than most hardened metals. Hardness does not always mean wear or impact resistance.The stencils for engraving granite tombstones are made of rubber,the sand from the sand blaster simply bounces off of the rubber.

Here is a link that will help inform your decision.

http://www.linktech-inc.com/comparison-chart.html

The impact resistance is superior to steel,and the friction coefficient is second only to Tefllon.This will make all parts easier to clean.

Note:It is very hard to bond UHMW with adhesives,but it can be done by heating the surface before applying adhesive.Consult the manufacturer for more details,if you decide to go with this.Also must allow for thermal expansion if temperature extremes are to be encountered.Mounting in strips with a gap between is preferred to a single large piece in large application.

With hardness, your fractureability may increase. But… I did a large cyclone, that was made out of 304ss stainless, it did wear, product was sawdust, had to replace it after 10 years of constant use, it had patches. I replaced it with 310ss, which is supposable more abrasion resistance. Something to think about.

Some funky posting/punctuation structure going on here at cr4

In the paper industry in New England area, we used Plasma Coatings, Inc (Middlebury, CT), now merged with American Roller Company, to do on site spray coating of various metals, tungsten & Teflon traction-release compound, traction compounds and others. All of the items were exterior sprays on machine cylinders and rollers, so interior application could be tricky, but probably doable.

Thank you.I imagine it would be very difficult. There is an 18” hole for access in the top., and the reach would be 4ft.

Perhaps a skinny employee?

Drop a dwarf? Not pc.. lol

Sounds like a job for a robot ....

I would never stoop so low.

Here is a very informative article that outlines the pluses and minuses of various anti-abrasive,impact resistant materials. https://www.biomassengineeringequipment.com/wear-resistant-materials-conveyors-stainless-ar-steel-galvanized-uhmw/ For some reason,the add-link option does not appear on this page,so just copy and paste.

Thank you for the article. I contacted a plastics mfg company. They said first, that the UHMWPE is more abrasion resistant than HDPE. I need to make a cone from sheet material between 1/4" and 1/2" thick. They said this would be difficult. I have to send an RFQ with drawing.. but expecting it to be exorbitant.

I know that UHMW can be step-bent into a cone, but maybe not at the 1/2" thickness. I'm not sure about adding heat to improve the forming. I agree that the UHMW would be very resistant.. but I need to make something, and then do some testing on it, before we offer it as an insert solution for the cyclones.

UHMW is practically indestructible in an abrasive wear application.It is used in motorcycle dirt bikes as a chain tensioner, dirt,sand mud,no lube required.

It will outlast bearings in such applications.It is also used in automotive applications as a timing chain tensioner,immersed in hot oil,and in conveyor as guides.

I have seen UHMW pillow block bearings supporting 400 lb loads on a 25mm steel shaft,slow speed, run for years with no visible signs of wear.UHMW is not suitable for high surface-speed applications,such as forestry mulcher bearings,etc.,but you cant beat it for abrasion and impact resistance.

If you can get your machines to incorporate this,it will definitely reduce downtime.

I have suggestions on some ways to do this if you PM me.