Friday, December 10, 2010

Re: [MW:8666] Hot dip galvanising Vs thermal zinc spray

 
Dear Mr.Hegde,
 
Thermal spray coatings are a melted, or softened ceramic, metallic, or polymer materials are transported by a gas stream to a properly prepared substrate
 
Hot-dip galvanizing is essentially a brazing process. Steel is cleaned (mechanically and chemically) and then heated to >850°F in a molten zinc bath. The molten zinc reacts with the surface of the steel and forms a coating of various layers of zinc and iron alloys, depositing a layer of material that is approximately 40% pure zinc.

 
Arun S Das
Inspection Engineer
Velosi Certification LLC
Qatar
Mob: +97433240549
+919847051202 ( India )



From: Qamlr <qamlr@cicb-chemicon.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Thu, 9 December, 2010 2:24:58 PM
Subject: [MW:8627] Hot dip galvanising Vs thermal zinc spray

Dear Team members

 

Could you please explain basic difference between hot dip galvanizing and thermal zinc spray. We have requirement of both on certain component. Can I adopt thermal zinc spray process in lieu of hot dip galvansing.

 

Please clarify.

 

Regards

 

Prashanth Hegde



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