Surface Engineering Forum

  • Alternative Forum Home PageSEF Portal
  • Old S E Message Board ArchivesOld Message Board Archives
  • Search
  • Member List
  • Calendar
  • Help

Current time: 04-24-2018, 09:57 PM Hello There, Guest! (Login — Register)


Surface Engineering Forum / Surface Engineering / Surface Engineering Threads v
« Previous 1 ... 15 16 17 18 19 ... 30 Next »
/ Woven wire mesh protective coatings




Post Reply 
Threaded Mode | Linear Mode
Woven wire mesh protective coatings
09-01-2010, 09:26 AM
Post: #1
Robert Alford Offline
Member
***
Posts: 5
Joined: Sep 2010
Reputation: 0
Woven wire mesh protective coatings
Improve filtration efficiency and extend the longevity of Woven wire mesh Stainless Steel filters.

Hello my name is Robert, I am a student at Loughborough university currently working with a filtration company to improve filtration efficiency and extend the longevity of Woven wire mesh Stainless Steel filters in a range of applications but particularly protection from harsh corrosive chemicals (e.g. chlorides, acids).

I have read a number of threads and there apears to be some real experts who post here.

Corrosion in these harsh enviroments seems to be unavoidable without a protective barrier (coating).

My current research has yielded a number of possible coatings however the thickness of coating required appears to be an issue as the aperture of the mesh must have the minimal reduction in size possible.

My query is what coatings can people suggest which can be applied in thin coatings to protect the Stainless Steel from harsh corrosive chemicals such as chlorides and acids?

Current research has sugested the Fluoropolymer family (mainly PTFE), SiO2, TiN, Aluminium, TiO2, ZnO (not using the photocatalytic property) etc.

Any opinions on the above coatings and other ideas to solve this corrosion problem would be much appreciated.

Thank you

Robert
Find all posts by this user
Quote this message in a reply
09-03-2010, 04:19 PM
Post: #2
MichiganMan Offline
Senior Member
*****
Posts: 85
Joined: Nov 2009
Reputation: 3
RE: Woven wire mesh protective coatings
Welcome Robert,

You'll need to be a bit more specific if you can. Chlorides and Acids doesn't really tell much about the application.

What size solids are you trying to filter (or pass)?

Does the mesh have to be a specific grade of stainless?

How thick can/should the coating be?


Dependent on the details it may be as simple as a liquid applied barrier coating (an oxirane or something in that vein) or it might be more complex.
Send this user an email Find all posts by this user
Quote this message in a reply
09-07-2010, 11:02 AM
Post: #3
Robert Alford Offline
Member
***
Posts: 5
Joined: Sep 2010
Reputation: 0
RE: Woven wire mesh protective coatings
Thank you very much for your message
Sorry for delay in reply I went to see the company again yesterday.
The company provide filters to a range of companies some of the resent enquiries that would benefit from a protective coating include filters in the make up business, cleaning liquids ( i.e. fairy liquid), mesh baskets ( larger 10 mesh used here with an aperture of 2mm) used in sulphuric acid.
The coating thickness needs to be as thin as possible although the mesh can be selected so that post coating it is correct ideally we want the thinnest coating possible to provide a satisfactory barrier. An epoxy coating as suggested would totally fill the aperture of 100 mesh of 0.078mm (although of course a larger pre coated mesh would be selected)
Although exotic material such as mesh in alloy 625 (as was used in the mesh basket case) or CPVC can be selected the ability to supply a coated mesh of small aperture required would be ideal in a large number of industries.
Normally they work with SS316, Duplex where necessary and as mentioned above selected alloys are used, so no their is not specific SS required.
Size of mesh (solids removed) varies from 200 mesh all the way to 5 mesh apertures of (0.07mm to 4mm)
Hope this helps
Sorry if I am still a bit vague the company are not for providing specific applications to help me.

Thanks you again

Robert
Find all posts by this user
Quote this message in a reply
12-28-2010, 07:54 PM
Post: #4
dazarooney Offline
Newbie
*
Posts: 1
Joined: Dec 2010
Reputation: 0
RE: Woven wire mesh protective coatings
Robert, I'm not sure if you got the answers you needed in the end but it would be good to know if you did.

welded wire mesh

http://www.perforated-wire-mesh.com/woven-wire-mesh.asp
Send this user an email Find all posts by this user
Quote this message in a reply
01-03-2011, 03:22 AM
Post: #5
kschewe Offline
Senior Member
*****
Posts: 94
Joined: Oct 2010
Reputation: 3
RE: Woven wire mesh protective coatings
I don't think thermal spray would work for this application. Making the mesh out of exotic metals would be better. Then maybe trying to plate them with nickel or chrome. Trying to spray a mesh would burn up. Maybe using a wire arc system. Making the mesh holes a mill bigger then spraying the mesh to size.
Send this user an email Find all posts by this user
Quote this message in a reply
04-04-2011, 03:48 PM
Post: #6
joncro55 Offline
Junior Member
**
Posts: 2
Joined: Apr 2011
Reputation: 0
RE: Woven wire mesh protective coatings
I know of a company that sells this nickel plated woven wire mesh in various sizes...

http://www.bwire.com/

Have used them in the past to get some wire cloth made of exotic alloys (Hastelloy, Nickel, Silver, Monel, Etc...) and they can usually always get what I am looking for. I am not sure if they make the mesh themselves, or if they already have it in stock, but I am pretty sure they weave mesh here in the United States.
Send this user an email Find all posts by this user
Quote this message in a reply
« Next Oldest | Next Newest »
Post Reply 




Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  MO wire spray parameter for 3GF kim jong hun 1 114 04-13-2018
01:41 PM
Last Post: plasmajet1990
  Mo wire spraying Arturas 6 684 09-15-2017
01:29 PM
Last Post: Arturas
Bell mechanical and physical properties of TSA coatings madanpal29 0 575 07-06-2017
02:23 PM
Last Post: madanpal29
  heat treatment of MCrAlY coatings clover 4 4,169 06-26-2017
12:55 PM
Last Post: Nesher
  Request for solution to reduce porosity in HVOF Tungsten Carbide Coatings sreenuvundela 6 5,166 05-23-2017
06:46 PM
Last Post: loriolo
  Coating on Boiler tube in Coal Fired Power Plan by using Tafa wire 97MXC Iwan Sedaryawan CA 4 1,987 04-21-2017
03:17 PM
Last Post: J!m
  difference between wire fed and powder thermal sprayers. wildlife360 4 1,279 04-13-2017
05:22 PM
Last Post: loriolo
  Protective coating for the brass (CZ121) RobertW 0 520 11-22-2016
02:29 AM
Last Post: RobertW
  HVOF 88 WC-12Co Cracking problem on wire drawing capstan Hector Monjardin 7 2,304 10-19-2016
11:55 PM
Last Post: Hector Monjardin
  removal or stripping of coatings mountprat 16 22,636 06-24-2016
06:54 AM
Last Post: James Chua
  Wire drawing cracking problem Hector Monjardin 3 1,682 06-23-2016
05:37 PM
Last Post: Hector Monjardin
  Reg: Anti stick coatings for moulds and dies. Dileep 4 2,226 01-04-2016
03:26 PM
Last Post: djewell
  Tungsten Carbide coatings Sealants sorousheti 5 2,812 11-23-2015
10:18 AM
Last Post: sorousheti
  Thermal spray coatings over carbon fiber substrate Hector Monjardin 5 2,488 11-18-2015
04:00 PM
Last Post: Hector Monjardin
  About service temperatures of two different Ni-Al coatings fhyuan 1 1,248 09-02-2015
09:38 AM
Last Post: Vadim Verlotski

  • View a Printable Version
  • Send this Thread to a Friend
  • Subscribe to this thread


User(s) browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd

    Subscribe in a reader

    Contact Us | Thermal Spray Coatings | Return to Top | Return to Content | Lite (Archive) Mode | RSS Syndication

Powered By MyBB, © 2002-2018 MyBB Group.


© Copyright Gordon England