Get a different supplier. If you need suggestions let me know.
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Mitsubishi Chemical Advanced Materials
www.mcam.com
Use a thermal pad or gap pad. https://www.henkel-adhesives.com/us/en/products/thermal-management-materials.html
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Mitsubishi Chemical Advanced Materials
www.mcam.com
Have you considered a low friction liner?
https://www.mcam.com/na-en/products/equipment-for-heat-wear-corrosive-applications/tivarr-low-friction-linings/?r=1
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Mitsubishi Chemical Advanced Materials
www.mcam.com
Not sure the gear loading but perhaps cast nylon with MoS2 filler (Nylatron GSM) could replace the larger metal gear. Might need a metal hub still depending on the shaft loading.
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Mitsubishi Chemical Advanced Materials
www.mcam.com
What is the IPA purity. Perhaps a residue to forming. If you water rinse and vacuum bake at 100C do you get lower friction. I would suggest careful measurement of your fits would help to resolve some of these possibilities.
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Mitsubishi Chemical Advanced...
What temp are these plates exposed to? You could used a solid film lubricant filled polymer sheet/plate. Ketron HPV is a good material. You can go to plasma coatings (SiC or TiN) if you need temps over 500F. I believe Ti can be Ion Nitrided but isn't possible via liquid salt bath due to...
You can use a glass or ceramic reinforced UHMW with low CTE. Tivar 88 or Tivar Ceram-P
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Mitsubishi Chemical Advanced Materials
www.mcam.com
Using abradable polymer seals will lower consumption. Fluorosint 500 or Duratron PAI are commonly used.
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Mitsubishi Chemical Advanced Materials
www.mcam.com
We make long life abradable seals for compressors. Fluorosint 500 or Duratron PAI are used depending on temperature, chemistry, and loading.
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Mitsubishi Chemical Advanced Materials
www.mcam.com
Cnc vacuum table with knife or rotary blade. We used Gerber 12 ft x 80ft unit. We also used steel rule die with hydraulic rotary punches.
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Mitsubishi Chemical Advanced Materials
www.mcam.com
You need to determine the operating PV to see if Delrin (POM-H) can handle this application. Then you need to determine total running clearance. See link below for design guide. Since your bushing is small I’d step up to a better material like Techtron HPV. Won’t be much more $$ and will last...
Or you could just buy the laminate and cut it to size. Here is one. http://www.matweb.com/search/datasheet.aspx?matguid=137f96e53ec6473caba99f5f57a0bf04&ckck=1
I look at AMS 2759/3 for guidance. I’ve personally aged 17-4PH in air. 1025F for 4 hrs. If you don’t like heat tint they wrap it in 321 SS foil. If this is a production part then send it out for HT.
