The best coating treatment option for making aluminium barrel and screw more resistant to galling?

• Aug 28, 2022

• #2

M

MintJulep

Mechanical

Jun 12, 2003

10,134

I suggest that you contact the nice people at General Magnaplate.

https://www.magnaplate.com/contact/contact-general-magnaplate

 

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• Sep 1, 2022

• #3

DAVIDSTECKER

Mechanical

Mar 23, 2005

526

If your talking about a threaded connection, use Anti-seize.
If it's wear, MintJulep has steered you the right direction.

 

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• Sep 1, 2022

• #4

EdStainless

Materials

May 20, 2004

16,285

Make sure that it isn't mating with other Al parts.
Or if it all has to be Al make sure that one alloy is much harder than the other.
And then add the best best coating that you can, the G-M stuff is very good.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

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• Sep 2, 2022

• Thread starter
• #5

Uralsk

Mechanical

Feb 21, 2021

39

I need the best common coating treatment method that it's not patented
Because I don't live in the US
I live in Indonesia

 

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• Sep 2, 2022

• #6

TugboatEng

Marine/Ocean

Nov 1, 2015

11,846

If it's lightweight aluminum the air freight costs shouldn't be unreasonable.

Otherwise, use your favorite search engine with terms like "aluminum anti galling coating".

Here is an outfit with a European office:

https://hardide.com/anti-galling-coating/

 

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• Sep 2, 2022

• Thread starter
• #7

Uralsk

Mechanical

Feb 21, 2021

39

i'm using the aluminium barrel and screw for molten plastic extrusion

 

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• Sep 2, 2022

• #8

SnTMan

Mechanical

Jan 22, 2005

6,824

Some background: thread330-497754

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

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• Sep 2, 2022

• #9

M

MintJulep

Mechanical

Jun 12, 2003

10,134

https://www.magnaplate.com/contact/licensee-locator

Australia, Japan, South Korea.

 

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• Sep 2, 2022

• Thread starter
• #10

Uralsk

Mechanical

Feb 21, 2021

39

I need the best generic common coating treatment method that it's not patented
Without sending my extrusion screw and barrel overseas

 

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• Sep 3, 2022

• #11

TugboatEng

Marine/Ocean

Nov 1, 2015

11,846

You can electroplate silver onto the parts with some very rudimentary items such as a battery charger or welder and it has good galling resistance. Silver is less expensive to purchase in small quantities than other industrial metals such as nickel or chrome. Silver is soft and won't be as wear resistant so you may need to renew the costing regularly.

 

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