Posted by Jian Pu on May 10, 2003 at 23:55:24:
In Reply to: Re: Grinding and polishing of Ceramic coating sprayed by plasma posted by Gordon England on May 06, 2003 at 12:50:23:
: : Who can give me some idea about how to grind and polish the Al2O3+TiO2 plasma sprayed ceramic coating in concave surface? workingpiece was yarn guide wheel.
: : they were without precise dimension requirement. But we hope to improve the efficiency in grinding.
: : I appreciate if I can get reply.
: Hi Jian
: What grinding and polishing methods have you tried and what finish or texture do you require?
: Normally, diamond grinding initially with 150 grit wheels are recommended, but with your application it may be worth considering a brushing method particularly if dimensional or flatness are not important factors.
: Regards Gordon
Hi Gordon
The requirement of finish is Ra 0.3 to 0.6 for Al2O3+13TiO2 coating with layer thickness from 150 to 250 um. Ra 1.2 to 1.6 for Cr2O3 coating with layer thickness form 100 to 150 um.
Regards
Jian Pu
Follow Ups:
Surface Engineering Forum
Surface Engineering Message Board Archive
Surface Engineering Message Board Archive Index
www.gordonengland.co.uk
Please go to the new Surface Engineering Forum as this old message board is a read only archive. Please copy and paste relevant information or link to the page if you wish to reactivate a thread on the new forum.
Introducing
Nature of Thermal Spray Coatings
Surface Engineering in a Nutshell
Surface Engineering Forum
Thermal Spray Gun Repair Service
Plasma Consumable Parts
Thermal Spray Powder Supplies
Applications:
Thermal Spray Coatings on Carbon and Glass Fibre Reinforced Polymers
HVOF Coating of Paper Making Roll
Abradable Coatings
Thermal Spray Processes:
Combustion Wire Thermal Spray Process
Combustion Powder Thermal Spray Process
Arc Wire Thermal Spray Process
Plasma Thermal Spray Process
HVOF Thermal Spray Process
HVAF Thermal Spray Process
Detonation Thermal Spray Process
Plasma Flame Theory
Cold Spray Coating Process
Wear and Use of Thermal Spray Coatings
Corrosion and Use of Thermal Spray Coatings
Glossary of Thermal Spray and Surface Engineering Terms
Image Directory for Thermal Spray Coatings
Plasma Gas Flow Information
Plasma Gas Flow Correction Calculator
Contact Form
Links to other interesting sites related to thermal spray and surface engineering
Reciprocal Links
Periodic Table of the Elements
SI Units
Calculators for Conversion between Units of Measurement
Hardness Testing
Surface Engineering Message Board Archive
Surface Engineering Message Board Archive Index
Photography Gallery2
Photography Gallery3
© Copyright Gordon England